djvu | b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a

Analysis

max time kernel
69s
max time network
142s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
25-09-2022 06:09

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General

Target

b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
Size

720KB
MD5

d914869d0477770dd713f3711b99c14f
SHA1

18296462c507f3ce778d05a2a23c212d5fc27976
SHA256

b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a
SHA512

63d076030c8bd59df57ed4333904ed499764af39d55c978740f4c5b2b03c3df8c23536b7996a95bc0d806bcbe7a170187779e4560fc21dc07de3220c68903874
SSDEEP

12288:5ugZvs98Bg7Ahi4jSqTJC5xbWWtwT7WSG2UxzkQpE36hY2VzKE9:VW17+jSqTJCjbW33wrdk93aOE9

Score

10^/10

djvu vidar 517 discovery persistence ransomware spyware stealer

Malware Config

Extracted

Family

djvu

http://winnlinne.com/test1/get.php

Attributes

extension
.oflg
offline_id
xkNzhkB1wvgoDI7Uo0HPNLY3qCuwoFpP7nlhlut1
payload_url
http://rgyui.top/dl/build2.exe
http://winnlinne.com/files/1/build3.exe
ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-EWKSsSJiVn Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: support@bestyourmail.ch Reserve e-mail address to contact us: datarestorehelp@airmail.cc Your personal ID: 0566Jhyjd

rsa_pubkey.plain

Extracted

Family

vidar

Version

54.6

Botnet

517

https://t.me/huobiinside

https://mas.to/@kyriazhs1975

Attributes

profile_id
517

Signatures

Detected Djvu ransomware 9 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3068-143-0x00000000022D0000-0x00000000023EB000-memory.dmp	family_djvu
behavioral1/memory/3368-147-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/3368-146-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3368-153-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3368-214-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3368-246-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4832-274-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/4832-344-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4832-522-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Downloads MZ/PE file
Executes dropped EXE 4 IoCs

Processes:

build2.exebuild2.exebuild3.exemstsca.exe

pid process

4540 build2.exe
4728 build2.exe
2188 build3.exe
4168 mstsca.exe
Loads dropped DLL 2 IoCs

Processes:

build2.exe

pid process

4728 build2.exe
4728 build2.exe
Modifies file permissions 1 TTPs 1 IoCs
discovery

File Permissions Modification
T1222

Processes:

icacls.exe

pid process

1072 icacls.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses 2FA software files, possible credential harvesting 2 TTPs
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

pid	process
4540	build2.exe
4728	build2.exe
2188	build3.exe
4168	mstsca.exe

pid	process
4728	build2.exe
4728	build2.exe

pid	process
1072	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\a00a6a8a-ca80-4f4f-a2b1-37b1104c3ab5\\b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe\" --AutoStart"	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

1 api.2ip.ua
2 api.2ip.ua
9 api.2ip.ua

flow	ioc
1	api.2ip.ua
2	api.2ip.ua
9	api.2ip.ua

Suspicious use of SetThreadContext 3 IoCs

Processes:

b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exeb964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exebuild2.exe

description	pid	process	target process
PID 3068 set thread context of 3368	3068	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
PID 2308 set thread context of 4832	2308	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
PID 4540 set thread context of 4728	4540	build2.exe	build2.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

build2.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	build2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	build2.exe

Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exe

pid process

2556 schtasks.exe
4268 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

388 timeout.exe
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

4072 taskkill.exe

pid	process
2556	schtasks.exe
4268	schtasks.exe

pid	process
388	timeout.exe

pid	process
4072	taskkill.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exeb964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exebuild2.exe

pid	process
3368	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
3368	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
4832	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
4832	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
4728	build2.exe
4728	build2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4072 taskkill.exe

description	pid	process
Token: SeDebugPrivilege	4072	taskkill.exe

Suspicious use of WriteProcessMemory 56 IoCs

Processes:

b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exeb964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exeb964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exeb964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exebuild2.exebuild3.exebuild2.execmd.exemstsca.exe

description	pid	process	target process
PID 3068 wrote to memory of 3368	3068	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
PID 3068 wrote to memory of 3368	3068	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
PID 3068 wrote to memory of 3368	3068	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
PID 3068 wrote to memory of 3368	3068	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
PID 3068 wrote to memory of 3368	3068	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
PID 3068 wrote to memory of 3368	3068	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
PID 3068 wrote to memory of 3368	3068	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
PID 3068 wrote to memory of 3368	3068	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
PID 3068 wrote to memory of 3368	3068	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
PID 3068 wrote to memory of 3368	3068	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
PID 3368 wrote to memory of 1072	3368	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	icacls.exe
PID 3368 wrote to memory of 1072	3368	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	icacls.exe
PID 3368 wrote to memory of 1072	3368	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	icacls.exe
PID 3368 wrote to memory of 2308	3368	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
PID 3368 wrote to memory of 2308	3368	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
PID 3368 wrote to memory of 2308	3368	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
PID 2308 wrote to memory of 4832	2308	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
PID 2308 wrote to memory of 4832	2308	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
PID 2308 wrote to memory of 4832	2308	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
PID 2308 wrote to memory of 4832	2308	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
PID 2308 wrote to memory of 4832	2308	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
PID 2308 wrote to memory of 4832	2308	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
PID 2308 wrote to memory of 4832	2308	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
PID 2308 wrote to memory of 4832	2308	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
PID 2308 wrote to memory of 4832	2308	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
PID 2308 wrote to memory of 4832	2308	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
PID 4832 wrote to memory of 4540	4832	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	build2.exe
PID 4832 wrote to memory of 4540	4832	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	build2.exe
PID 4832 wrote to memory of 4540	4832	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	build2.exe
PID 4540 wrote to memory of 4728	4540	build2.exe	build2.exe
PID 4540 wrote to memory of 4728	4540	build2.exe	build2.exe
PID 4540 wrote to memory of 4728	4540	build2.exe	build2.exe
PID 4540 wrote to memory of 4728	4540	build2.exe	build2.exe
PID 4540 wrote to memory of 4728	4540	build2.exe	build2.exe
PID 4540 wrote to memory of 4728	4540	build2.exe	build2.exe
PID 4540 wrote to memory of 4728	4540	build2.exe	build2.exe
PID 4540 wrote to memory of 4728	4540	build2.exe	build2.exe
PID 4540 wrote to memory of 4728	4540	build2.exe	build2.exe
PID 4832 wrote to memory of 2188	4832	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	build3.exe
PID 4832 wrote to memory of 2188	4832	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	build3.exe
PID 4832 wrote to memory of 2188	4832	b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe	build3.exe
PID 2188 wrote to memory of 2556	2188	build3.exe	schtasks.exe
PID 2188 wrote to memory of 2556	2188	build3.exe	schtasks.exe
PID 2188 wrote to memory of 2556	2188	build3.exe	schtasks.exe
PID 4728 wrote to memory of 4912	4728	build2.exe	cmd.exe
PID 4728 wrote to memory of 4912	4728	build2.exe	cmd.exe
PID 4728 wrote to memory of 4912	4728	build2.exe	cmd.exe
PID 4912 wrote to memory of 4072	4912	cmd.exe	taskkill.exe
PID 4912 wrote to memory of 4072	4912	cmd.exe	taskkill.exe
PID 4912 wrote to memory of 4072	4912	cmd.exe	taskkill.exe
PID 4912 wrote to memory of 388	4912	cmd.exe	timeout.exe
PID 4912 wrote to memory of 388	4912	cmd.exe	timeout.exe
PID 4912 wrote to memory of 388	4912	cmd.exe	timeout.exe
PID 4168 wrote to memory of 4268	4168	mstsca.exe	schtasks.exe
PID 4168 wrote to memory of 4268	4168	mstsca.exe	schtasks.exe
PID 4168 wrote to memory of 4268	4168	mstsca.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
"C:\Users\Admin\AppData\Local\Temp\b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3068

C:\Users\Admin\AppData\Local\Temp\b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
"C:\Users\Admin\AppData\Local\Temp\b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3368

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\a00a6a8a-ca80-4f4f-a2b1-37b1104c3ab5" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:1072

C:\Users\Admin\AppData\Local\Temp\b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
"C:\Users\Admin\AppData\Local\Temp\b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2308

C:\Users\Admin\AppData\Local\Temp\b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
"C:\Users\Admin\AppData\Local\Temp\b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4832

C:\Users\Admin\AppData\Local\d113dffb-bf00-4407-8e83-59bfdd03c652\build2.exe
"C:\Users\Admin\AppData\Local\d113dffb-bf00-4407-8e83-59bfdd03c652\build2.exe"
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4540

C:\Users\Admin\AppData\Local\d113dffb-bf00-4407-8e83-59bfdd03c652\build2.exe
"C:\Users\Admin\AppData\Local\d113dffb-bf00-4407-8e83-59bfdd03c652\build2.exe"
6⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4728

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" xO°HÄZ/c taskkill /im build2.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\d113dffb-bf00-4407-8e83-59bfdd03c652\build2.exe" & del C:\PrograData\*.dll & exit
7⤵
- Suspicious use of WriteProcessMemory
PID:4912

C:\Windows\SysWOW64\taskkill.exe
taskkill /im build2.exe /f
8⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4072

C:\Windows\SysWOW64\timeout.exe
timeout /t 6
8⤵
- Delays execution with timeout.exe
PID:388

C:\Users\Admin\AppData\Local\d113dffb-bf00-4407-8e83-59bfdd03c652\build3.exe
"C:\Users\Admin\AppData\Local\d113dffb-bf00-4407-8e83-59bfdd03c652\build3.exe"
5⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2188

C:\Windows\SysWOW64\schtasks.exe
/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
6⤵
- Creates scheduled task(s)
PID:2556

C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4168

C:\Windows\SysWOW64\schtasks.exe
/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
2⤵
- Creates scheduled task(s)
PID:4268

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

File Permissions Modification

T1222

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize
2KB

MD5
32958182234a80a5b2589418864f6117

SHA1
598276140fd27d8931dbe02625e3378ad9085b8d

SHA256
a6f4c0928ecef1052acb557bf148d4d06206afaa0d334d30ef676d8b4b89fdb2

SHA512
04157e1f291fb8e11e8134fa321d6473ff7ed55c7848170ac9c6db4dd9e42d8303c40746ce56f4112f26c5ea730703ad00fa52fdf57377c81221473210e49dfa

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize
1KB

MD5
0d870ca424457579d4bd345ac1ec6c3c

SHA1
fc3d8924e13b4fc5eca7cabd4967eea3d4db1690

SHA256
cf9df8d62ec78ca20a50633047af6c913dc2d10f15823795e8d86042c7b05ed0

SHA512
a1e731ae03b1a2259f8e1afc86058aabb3b8ce3b0141f08ea18b6c7003c55aeb135d40bba38ebf1f76174eb1ad758fbec10841dee1ed704fb0285e36b2f7d66b

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize
488B

MD5
7e80ab8718f23a18f6bee1b50b937af5

SHA1
48f5662f00ff37b593d53cebb995c5d957e91f55

SHA256
0999b43ec73fc243fac8669310a34f78bb9cbeb1f983fa64e8929c70615a02c7

SHA512
e11188253811374d8411db9e422112eb29dfffd4036423fb30ab260f096ed5f75599275288c02a4e937e3426edf2ea71c91c181d28672d989baf8bd445674896

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize
482B

MD5
c02e3b641f4ea1b0a84fd3e7cd78d5ba

SHA1
5a1f858ea489a23de89cea2d4d123e401d7b3287

SHA256
c68fb7576cc2c720ec30ffe9d341fa467c97ed740dac1f910424d36f1c9cbbb1

SHA512
2028138ce52791e617e7e113c1fa326abc3e750f70d25bfbaaae20a30311f1449a7e474796fedca846408875c7cb50d2dff59de1e3875fc9806d3d45b5bf1eb2

Download Submit
C:\Users\Admin\AppData\Local\a00a6a8a-ca80-4f4f-a2b1-37b1104c3ab5\b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a.exe
Filesize
720KB

MD5
d914869d0477770dd713f3711b99c14f

SHA1
18296462c507f3ce778d05a2a23c212d5fc27976

SHA256
b964c0aa370efbfab5ceebcbc98415b44f3784e2cb2740b5d202b4c2e55b681a

SHA512
63d076030c8bd59df57ed4333904ed499764af39d55c978740f4c5b2b03c3df8c23536b7996a95bc0d806bcbe7a170187779e4560fc21dc07de3220c68903874

Download Submit
C:\Users\Admin\AppData\Local\d113dffb-bf00-4407-8e83-59bfdd03c652\build2.exe
Filesize
246KB

MD5
4e08ecaa075b90f30327bf200d23130b

SHA1
f7b67a7abbe3815bd758933f7c4712bd4d4ec4b2

SHA256
6c11af0bbd346329224255d38a07fb9db5828881d3520ab4623c7a5fc09ecd47

SHA512
e7deeafe000b034cd4d71776cd1285e33d295a830f3459506dd7332e8c1c61b43ec2fdc406c22ba5262aa62a795421492f7e54602bfe08102b8b2a000d150bb7

Download Submit
C:\Users\Admin\AppData\Local\d113dffb-bf00-4407-8e83-59bfdd03c652\build2.exe
Filesize
246KB

MD5
4e08ecaa075b90f30327bf200d23130b

SHA1
f7b67a7abbe3815bd758933f7c4712bd4d4ec4b2

SHA256
6c11af0bbd346329224255d38a07fb9db5828881d3520ab4623c7a5fc09ecd47

SHA512
e7deeafe000b034cd4d71776cd1285e33d295a830f3459506dd7332e8c1c61b43ec2fdc406c22ba5262aa62a795421492f7e54602bfe08102b8b2a000d150bb7

Download Submit
C:\Users\Admin\AppData\Local\d113dffb-bf00-4407-8e83-59bfdd03c652\build2.exe
Filesize
246KB

MD5
4e08ecaa075b90f30327bf200d23130b

SHA1
f7b67a7abbe3815bd758933f7c4712bd4d4ec4b2

SHA256
6c11af0bbd346329224255d38a07fb9db5828881d3520ab4623c7a5fc09ecd47

SHA512
e7deeafe000b034cd4d71776cd1285e33d295a830f3459506dd7332e8c1c61b43ec2fdc406c22ba5262aa62a795421492f7e54602bfe08102b8b2a000d150bb7

Download Submit
C:\Users\Admin\AppData\Local\d113dffb-bf00-4407-8e83-59bfdd03c652\build3.exe
Filesize
9KB

MD5
9ead10c08e72ae41921191f8db39bc16

SHA1
abe3bce01cd34afc88e2c838173f8c2bd0090ae1

SHA256
8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

SHA512
aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

Download Submit
C:\Users\Admin\AppData\Local\d113dffb-bf00-4407-8e83-59bfdd03c652\build3.exe
Filesize
9KB

MD5
9ead10c08e72ae41921191f8db39bc16

SHA1
abe3bce01cd34afc88e2c838173f8c2bd0090ae1

SHA256
8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

SHA512
aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
Filesize
9KB

MD5
9ead10c08e72ae41921191f8db39bc16

SHA1
abe3bce01cd34afc88e2c838173f8c2bd0090ae1

SHA256
8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

SHA512
aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
Filesize
9KB

MD5
9ead10c08e72ae41921191f8db39bc16

SHA1
abe3bce01cd34afc88e2c838173f8c2bd0090ae1

SHA256
8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

SHA512
aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

Download Submit
\ProgramData\mozglue.dll
Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
\ProgramData\nss3.dll
Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
memory/388-611-0x0000000000000000-mapping.dmp

Download
memory/1072-218-0x0000000000000000-mapping.dmp

Download
memory/2188-456-0x0000000000000000-mapping.dmp

Download
memory/2308-264-0x0000000000660000-0x00000000007AA000-memory.dmp

Filesize
1.3MB

Download
memory/2308-244-0x0000000000000000-mapping.dmp

Download
memory/2556-502-0x0000000000000000-mapping.dmp

Download
memory/3068-143-0x00000000022D0000-0x00000000023EB000-memory.dmp

Filesize
1.1MB

Download
memory/3068-138-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3068-139-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3068-141-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3068-140-0x0000000000780000-0x0000000000816000-memory.dmp

Filesize
600KB

Download
memory/3068-116-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3068-144-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3068-142-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3068-145-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3068-117-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3068-118-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3068-119-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3068-120-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3068-121-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3068-122-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3068-123-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3068-124-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3068-125-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3068-126-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3068-127-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3068-128-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3068-129-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3068-130-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3068-132-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3068-133-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3068-134-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3068-135-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3068-136-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3068-137-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-176-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-160-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-169-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-168-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-170-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-171-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-172-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-174-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-173-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-175-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-167-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-177-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-178-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-179-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-180-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-181-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-182-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-183-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-214-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3368-165-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-164-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-163-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-246-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3368-162-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-147-0x0000000000424141-mapping.dmp

Download
memory/3368-161-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-166-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-159-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-158-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-148-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-146-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3368-156-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-157-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-155-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-149-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-150-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-151-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-154-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/3368-153-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3368-152-0x0000000076FE0000-0x000000007716E000-memory.dmp

Filesize
1.6MB

Download
memory/4072-568-0x0000000000000000-mapping.dmp

Download
memory/4268-667-0x0000000000000000-mapping.dmp

Download
memory/4540-400-0x0000000000866000-0x000000000088F000-memory.dmp

Filesize
164KB

Download
memory/4540-366-0x0000000000000000-mapping.dmp

Download
memory/4728-441-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/4728-397-0x000000000042094D-mapping.dmp

Download
memory/4728-563-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/4832-522-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4832-344-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4832-274-0x0000000000424141-mapping.dmp

Download
memory/4912-561-0x0000000000000000-mapping.dmp

Download