djvu | 1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4

General

Target

1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
Size

785KB
MD5

b1f1f27dc412d65653c97dde5c5f4937
SHA1

262b85a349a20c9b97a4be19af9b9b96ae7caf5d
SHA256

1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4
SHA512

03cf8242f333a04c91e9d5c8dbf15b8500e069dc96b4d948ad80f90aa413175717ecf2b92056daa496e6758b44341b3819609b13b64340d319842ed76382bd8b
SSDEEP

12288:wDQkRG6P9ZCD9ALF6OAtNPZgvAjcV0hfcmJAan88Aj7H5nu1RVKJ9tDkztBi1:wp/hLF6O6NR4Ajc3Xr8Y7ZnKDK6A1

Score

10^/10

djvu vidar 5739ef2bbcd39fcd59c5746bfe4238c5 discovery persistence ransomware stealer

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.vook
offline_id
1eSPzWRaNslCgtjBZfL5pzvovoiaVI4IZSnvAwt1
payload_url
http://sdfjhuz.com/dl/build2.exe
http://sajdfue.com/files/1/build3.exe
ransomnote
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rsa_pubkey.plain

Extracted

Family

vidar

Version

8.6

Botnet

5739ef2bbcd39fcd59c5746bfe4238c5

C2

https://steamcommunity.com/profiles/76561199658817715

https://t.me/sa9ok

Attributes

profile_id_v2
5739ef2bbcd39fcd59c5746bfe4238c5
user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36

Signatures

Detect Vidar Stealer 5 IoCs

stealer

Processes:

resource	yara_rule
behavioral2/memory/4308-49-0x0000000000400000-0x0000000000644000-memory.dmp	family_vidar_v7
behavioral2/memory/452-52-0x00000000022E0000-0x0000000002311000-memory.dmp	family_vidar_v7
behavioral2/memory/4308-54-0x0000000000400000-0x0000000000644000-memory.dmp	family_vidar_v7
behavioral2/memory/4308-55-0x0000000000400000-0x0000000000644000-memory.dmp	family_vidar_v7
behavioral2/memory/4308-76-0x0000000000400000-0x0000000000644000-memory.dmp	family_vidar_v7

Detected Djvu ransomware 18 IoCs

Processes:

resource	yara_rule
behavioral2/memory/996-2-0x0000000002AC0000-0x0000000002BDB000-memory.dmp	family_djvu
behavioral2/memory/556-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/556-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/556-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/556-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/556-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4600-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4600-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4600-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4600-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4600-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4600-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4600-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4600-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4600-73-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4600-90-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4840-102-0x00000000009C0000-0x0000000000AC0000-memory.dmp	family_djvu
behavioral2/memory/996-123-0x0000000000980000-0x0000000000A80000-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 8 IoCs

Processes:

build2.exebuild2.exebuild3.exebuild3.exemstsca.exemstsca.exemstsca.exemstsca.exe

pid process

452 build2.exe
4308 build2.exe
752 build3.exe
2176 build3.exe
4840 mstsca.exe
1136 mstsca.exe
996 mstsca.exe
3312 mstsca.exe
Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

224 icacls.exe

pid	process
452	build2.exe
4308	build2.exe
752	build3.exe
2176	build3.exe
4840	mstsca.exe
1136	mstsca.exe
996	mstsca.exe
3312	mstsca.exe

pid	process
224	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2567984660-2719943099-2683635618-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\fc225b12-5cac-4c1f-9af7-3ada574cd481\\1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe\" --AutoStart"	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe

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
6 api.2ip.ua

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

Suspicious use of SetThreadContext 6 IoCs

Processes:

1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exebuild2.exebuild3.exemstsca.exemstsca.exe

description	pid	process	target process
PID 996 set thread context of 556	996	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
PID 132 set thread context of 4600	132	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
PID 452 set thread context of 4308	452	build2.exe	build2.exe
PID 752 set thread context of 2176	752	build3.exe	build3.exe
PID 4840 set thread context of 1136	4840	mstsca.exe	mstsca.exe
PID 996 set thread context of 3312	996	mstsca.exe	mstsca.exe

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

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2804 4308 WerFault.exe 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/Job
T1053

Processes:

schtasks.exeschtasks.exe

pid process

3716 schtasks.exe
1760 schtasks.exe

pid	pid_target	process	target process
2804	4308	WerFault.exe	build2.exe

pid	process
3716	schtasks.exe
1760	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe

pid	process
556	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
556	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
4600	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
4600	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exebuild2.exebuild3.exebuild3.exemstsca.exemstsca.exe

description	pid	process	target process
PID 996 wrote to memory of 556	996	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
PID 996 wrote to memory of 556	996	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
PID 996 wrote to memory of 556	996	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
PID 996 wrote to memory of 556	996	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
PID 996 wrote to memory of 556	996	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
PID 996 wrote to memory of 556	996	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
PID 996 wrote to memory of 556	996	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
PID 996 wrote to memory of 556	996	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
PID 996 wrote to memory of 556	996	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
PID 996 wrote to memory of 556	996	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
PID 556 wrote to memory of 224	556	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	icacls.exe
PID 556 wrote to memory of 224	556	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	icacls.exe
PID 556 wrote to memory of 224	556	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	icacls.exe
PID 556 wrote to memory of 132	556	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
PID 556 wrote to memory of 132	556	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
PID 556 wrote to memory of 132	556	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
PID 132 wrote to memory of 4600	132	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
PID 132 wrote to memory of 4600	132	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
PID 132 wrote to memory of 4600	132	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
PID 132 wrote to memory of 4600	132	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
PID 132 wrote to memory of 4600	132	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
PID 132 wrote to memory of 4600	132	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
PID 132 wrote to memory of 4600	132	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
PID 132 wrote to memory of 4600	132	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
PID 132 wrote to memory of 4600	132	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
PID 132 wrote to memory of 4600	132	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
PID 4600 wrote to memory of 452	4600	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	build2.exe
PID 4600 wrote to memory of 452	4600	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	build2.exe
PID 4600 wrote to memory of 452	4600	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	build2.exe
PID 452 wrote to memory of 4308	452	build2.exe	build2.exe
PID 452 wrote to memory of 4308	452	build2.exe	build2.exe
PID 452 wrote to memory of 4308	452	build2.exe	build2.exe
PID 452 wrote to memory of 4308	452	build2.exe	build2.exe
PID 452 wrote to memory of 4308	452	build2.exe	build2.exe
PID 452 wrote to memory of 4308	452	build2.exe	build2.exe
PID 452 wrote to memory of 4308	452	build2.exe	build2.exe
PID 452 wrote to memory of 4308	452	build2.exe	build2.exe
PID 452 wrote to memory of 4308	452	build2.exe	build2.exe
PID 452 wrote to memory of 4308	452	build2.exe	build2.exe
PID 4600 wrote to memory of 752	4600	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	build3.exe
PID 4600 wrote to memory of 752	4600	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	build3.exe
PID 4600 wrote to memory of 752	4600	1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe	build3.exe
PID 752 wrote to memory of 2176	752	build3.exe	build3.exe
PID 752 wrote to memory of 2176	752	build3.exe	build3.exe
PID 752 wrote to memory of 2176	752	build3.exe	build3.exe
PID 752 wrote to memory of 2176	752	build3.exe	build3.exe
PID 752 wrote to memory of 2176	752	build3.exe	build3.exe
PID 752 wrote to memory of 2176	752	build3.exe	build3.exe
PID 752 wrote to memory of 2176	752	build3.exe	build3.exe
PID 752 wrote to memory of 2176	752	build3.exe	build3.exe
PID 752 wrote to memory of 2176	752	build3.exe	build3.exe
PID 2176 wrote to memory of 3716	2176	build3.exe	schtasks.exe
PID 2176 wrote to memory of 3716	2176	build3.exe	schtasks.exe
PID 2176 wrote to memory of 3716	2176	build3.exe	schtasks.exe
PID 4840 wrote to memory of 1136	4840	mstsca.exe	mstsca.exe
PID 4840 wrote to memory of 1136	4840	mstsca.exe	mstsca.exe
PID 4840 wrote to memory of 1136	4840	mstsca.exe	mstsca.exe
PID 4840 wrote to memory of 1136	4840	mstsca.exe	mstsca.exe
PID 4840 wrote to memory of 1136	4840	mstsca.exe	mstsca.exe
PID 4840 wrote to memory of 1136	4840	mstsca.exe	mstsca.exe
PID 4840 wrote to memory of 1136	4840	mstsca.exe	mstsca.exe
PID 4840 wrote to memory of 1136	4840	mstsca.exe	mstsca.exe
PID 4840 wrote to memory of 1136	4840	mstsca.exe	mstsca.exe
PID 1136 wrote to memory of 1760	1136	mstsca.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
"C:\Users\Admin\AppData\Local\Temp\1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:996

C:\Users\Admin\AppData\Local\Temp\1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
"C:\Users\Admin\AppData\Local\Temp\1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:556

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\fc225b12-5cac-4c1f-9af7-3ada574cd481" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:224

C:\Users\Admin\AppData\Local\Temp\1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
"C:\Users\Admin\AppData\Local\Temp\1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:132

C:\Users\Admin\AppData\Local\Temp\1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
"C:\Users\Admin\AppData\Local\Temp\1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4600

C:\Users\Admin\AppData\Local\1c39a983-8b79-491c-9430-e4bed2bdead1\build2.exe
"C:\Users\Admin\AppData\Local\1c39a983-8b79-491c-9430-e4bed2bdead1\build2.exe"
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:452

C:\Users\Admin\AppData\Local\1c39a983-8b79-491c-9430-e4bed2bdead1\build2.exe
"C:\Users\Admin\AppData\Local\1c39a983-8b79-491c-9430-e4bed2bdead1\build2.exe"
6⤵
- Executes dropped EXE
PID:4308

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4308 -s 2200
7⤵
- Program crash
PID:2804

C:\Users\Admin\AppData\Local\1c39a983-8b79-491c-9430-e4bed2bdead1\build3.exe
"C:\Users\Admin\AppData\Local\1c39a983-8b79-491c-9430-e4bed2bdead1\build3.exe"
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:752

C:\Users\Admin\AppData\Local\1c39a983-8b79-491c-9430-e4bed2bdead1\build3.exe
"C:\Users\Admin\AppData\Local\1c39a983-8b79-491c-9430-e4bed2bdead1\build3.exe"
6⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2176

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"
7⤵
- Creates scheduled task(s)
PID:3716

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4308 -ip 4308
1⤵
PID:2836

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 SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4840

C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1136

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"
3⤵
- Creates scheduled task(s)
PID:1760

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 SetThreadContext
PID:996

C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
2⤵
- Executes dropped EXE
PID:3312

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

File and Directory Permissions Modification

1

T1222

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize
1KB

MD5
f213915edaae28d50459918c3bb1de6d

SHA1
55c71f771f67ca04df6876eebc30453b328352fc

SHA256
e226380b93bacad0e4cb95ecb5369941396f49c3bd6c869367a2b840def41ee9

SHA512
1dd92cafe3c45c7739aaa3ede9868597f6a689bc221d18f69d7676f8f2323ced160a22e1df661413465544afe9620f34606078dcc6baf83125d912c768bd1303

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize
724B

MD5
8202a1cd02e7d69597995cabbe881a12

SHA1
8858d9d934b7aa9330ee73de6c476acf19929ff6

SHA256
58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5

SHA512
97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize
410B

MD5
c1c2a1037a958cff52fac687139e5a04

SHA1
5ac1a3ae0d8371cfc86a46ea82db80a455d6caea

SHA256
002a1c66fa568bcfe870504b770a82030f7ffcc210c1b7081d4606f4daf82cb0

SHA512
ddd3faee447b42ad7d7473980e985fe8b9b83bfdd44cb637e8d96581a98b3d4ec39c79029d3aa8195dd387959c81653ce71f120b7a09b20578ac5a06db5de111

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize
392B

MD5
cabf43c26c1ad2243aaca4bfd932c33d

SHA1
1848aa06a10370b38a0d078759e093885c9cadce

SHA256
21a984265dc2236ae156bb2836e84738d1dfa0fb9483da9985f95c051c33a1ac

SHA512
b8a27d66facbfc365e673a2218bb8a12f03ca16cf1f5b5fd1b4449014afd14e72e9f69c33767b46e4f5858c189ee3fa88a19f2ce8601cc01de4d6714ae41f256

Download Submit
C:\Users\Admin\AppData\Local\1c39a983-8b79-491c-9430-e4bed2bdead1\build2.exe
Filesize
277KB

MD5
8dae8b6a6be6e3527183594d1c26a2d3

SHA1
b87e40cee60869a36e79c88c8a3a34baf0bc4889

SHA256
afce72cd3bc717c784962083066e3ede2b0aaadbe0908ec7360096c923774fa5

SHA512
0bf065700db647efba39a13a58242a595907e6c11885575cf0bdad9e23ab40583c8a6535464e46d75d075e20d88b7a6305a761df9da787fdc8728483dd48f96e

Download Submit
C:\Users\Admin\AppData\Local\1c39a983-8b79-491c-9430-e4bed2bdead1\build3.exe
Filesize
299KB

MD5
41b883a061c95e9b9cb17d4ca50de770

SHA1
1daf96ec21d53d9a4699cea9b4db08cda6fbb5ad

SHA256
fef2c8ca07c500e416fd7700a381c39899ee26ce1119f62e7c65cf922ce8b408

SHA512
cdd1bb3a36182575cd715a52815765161eeaa3849e72c1c2a9a4e84cc43af9f8ec4997e642702bb3de41f162d2e8fd8717f6f8302bba5306821ee4d155626319

Download Submit
C:\Users\Admin\AppData\Local\fc225b12-5cac-4c1f-9af7-3ada574cd481\1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4.exe
Filesize
785KB

MD5
b1f1f27dc412d65653c97dde5c5f4937

SHA1
262b85a349a20c9b97a4be19af9b9b96ae7caf5d

SHA256
1d8ae60923cc36a4e0baf8087e5508754bcd059795513b0182b8ae7bed0f79d4

SHA512
03cf8242f333a04c91e9d5c8dbf15b8500e069dc96b4d948ad80f90aa413175717ecf2b92056daa496e6758b44341b3819609b13b64340d319842ed76382bd8b

Download Submit
memory/132-20-0x0000000002810000-0x00000000028A9000-memory.dmp

Filesize
612KB

Download
memory/452-52-0x00000000022E0000-0x0000000002311000-memory.dmp

Filesize
196KB

Download
memory/452-50-0x00000000007C0000-0x00000000008C0000-memory.dmp

Filesize
1024KB

Download
memory/556-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/556-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/556-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/556-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/556-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/752-83-0x0000000000A10000-0x0000000000A14000-memory.dmp

Filesize
16KB

Download
memory/752-82-0x0000000000A3D000-0x0000000000A4E000-memory.dmp

Filesize
68KB

Download
memory/996-123-0x0000000000980000-0x0000000000A80000-memory.dmp

Filesize
1024KB

Download
memory/996-2-0x0000000002AC0000-0x0000000002BDB000-memory.dmp

Filesize
1.1MB

Download
memory/996-1-0x0000000002A20000-0x0000000002ABF000-memory.dmp

Filesize
636KB

Download
memory/2176-84-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2176-79-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2176-86-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2176-87-0x0000000000410000-0x0000000000413000-memory.dmp

Filesize
12KB

Download
memory/4308-76-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/4308-49-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/4308-54-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/4308-55-0x0000000000400000-0x0000000000644000-memory.dmp

Filesize
2.3MB

Download
memory/4600-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4600-73-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4600-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4600-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4600-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4600-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4600-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4600-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4600-90-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4600-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4840-102-0x00000000009C0000-0x0000000000AC0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads