djvu | 9feb26b9550dbf46719374757468d95b6882c00fd3ca65a02e9edf2854e900a9

Analysis

max time kernel
130s
max time network
129s
platform
windows10_x64
resource
win10v20201028
submitted
18-03-2021 06:41

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General

Target

e029107139c27f93a1ad1e718dc27369.exe
Size

712KB
MD5

e029107139c27f93a1ad1e718dc27369
SHA1

060c494bd61498e36a5639fcc5133d0e4ecde636
SHA256

9feb26b9550dbf46719374757468d95b6882c00fd3ca65a02e9edf2854e900a9
SHA512

b296af96bec07e9e60e8e9d517c05c7bc140ec5b8fdc37dd848656eed03ee4c318227c36cd2efae81ce0b3f27ae54be1a6abf379822c83ca6c935972617ad6d8

Score

10^/10

djvu vidar discovery persistence ransomware spyware stealer

Malware Config

Extracted

Path

C:\_readme.txt

Family

djvu

Ransom Note

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-NuEqGxqRg2 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: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0288WidasdEsUZas7gkeb7VFrTQj5WSD57OcedsLtXr4RxxhWn

Emails

[email protected]

URLs

https://we.tl/t-NuEqGxqRg2

Signatures

Detected Djvu ransomeware 3 IoCs

resource	yara_rule
behavioral2/memory/3244-3-0x0000000002690000-0x00000000027AA000-memory.dmp	family_djvu
behavioral2/memory/3244-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3044-14-0x0000000000400000-0x0000000000537000-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

Vidar Stealer 2 IoCs

stealer

resource	yara_rule
behavioral2/memory/3472-20-0x0000000000400000-0x0000000000499000-memory.dmp	family_vidar
behavioral2/memory/3472-19-0x0000000002F70000-0x0000000003006000-memory.dmp	family_vidar

Downloads MZ/PE file

Executes dropped EXE 2 IoCs

pid	Process
3472	5.exe
3844	e029107139c27f93a1ad1e718dc27369.exe

Modifies extensions of user files 8 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File renamed	C:\Users\Admin\Pictures\SendOut.raw => C:\Users\Admin\Pictures\SendOut.raw.enfp	e029107139c27f93a1ad1e718dc27369.exe
File opened for modification	C:\Users\Admin\Pictures\CloseReset.tiff	e029107139c27f93a1ad1e718dc27369.exe
File renamed	C:\Users\Admin\Pictures\CloseReset.tiff => C:\Users\Admin\Pictures\CloseReset.tiff.enfp	e029107139c27f93a1ad1e718dc27369.exe
File opened for modification	C:\Users\Admin\Pictures\EditSync.tiff	e029107139c27f93a1ad1e718dc27369.exe
File renamed	C:\Users\Admin\Pictures\EditSync.tiff => C:\Users\Admin\Pictures\EditSync.tiff.enfp	e029107139c27f93a1ad1e718dc27369.exe
File renamed	C:\Users\Admin\Pictures\GrantClose.tif => C:\Users\Admin\Pictures\GrantClose.tif.enfp	e029107139c27f93a1ad1e718dc27369.exe
File renamed	C:\Users\Admin\Pictures\InvokeCompress.crw => C:\Users\Admin\Pictures\InvokeCompress.crw.enfp	e029107139c27f93a1ad1e718dc27369.exe
File renamed	C:\Users\Admin\Pictures\LimitUse.tif => C:\Users\Admin\Pictures\LimitUse.tif.enfp	e029107139c27f93a1ad1e718dc27369.exe

Loads dropped DLL 2 IoCs

pid	Process
3472	5.exe
3472	5.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
184	icacls.exe

Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\1a95989f-733c-4f70-acd6-8d3312824d74\\e029107139c27f93a1ad1e718dc27369.exe\" --AutoStart"	e029107139c27f93a1ad1e718dc27369.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 4 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
26	api.2ip.ua
49	api.2ip.ua
15	api.2ip.ua
16	api.2ip.ua

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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	5.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	5.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1060	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2448	taskkill.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	e029107139c27f93a1ad1e718dc27369.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	e029107139c27f93a1ad1e718dc27369.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
3244	e029107139c27f93a1ad1e718dc27369.exe
3244	e029107139c27f93a1ad1e718dc27369.exe
3044	e029107139c27f93a1ad1e718dc27369.exe
3044	e029107139c27f93a1ad1e718dc27369.exe
3472	5.exe
3472	5.exe
3472	5.exe
3472	5.exe
3472	5.exe
3472	5.exe
3472	5.exe
3472	5.exe
3044	e029107139c27f93a1ad1e718dc27369.exe
3044	e029107139c27f93a1ad1e718dc27369.exe
3844	e029107139c27f93a1ad1e718dc27369.exe
3844	e029107139c27f93a1ad1e718dc27369.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2448	taskkill.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3244 wrote to memory of 184	3244	e029107139c27f93a1ad1e718dc27369.exe	76
PID 3244 wrote to memory of 184	3244	e029107139c27f93a1ad1e718dc27369.exe	76
PID 3244 wrote to memory of 184	3244	e029107139c27f93a1ad1e718dc27369.exe	76
PID 3244 wrote to memory of 3044	3244	e029107139c27f93a1ad1e718dc27369.exe	77
PID 3244 wrote to memory of 3044	3244	e029107139c27f93a1ad1e718dc27369.exe	77
PID 3244 wrote to memory of 3044	3244	e029107139c27f93a1ad1e718dc27369.exe	77
PID 3044 wrote to memory of 3472	3044	e029107139c27f93a1ad1e718dc27369.exe	82
PID 3044 wrote to memory of 3472	3044	e029107139c27f93a1ad1e718dc27369.exe	82
PID 3044 wrote to memory of 3472	3044	e029107139c27f93a1ad1e718dc27369.exe	82
PID 3472 wrote to memory of 2740	3472	5.exe	83
PID 3472 wrote to memory of 2740	3472	5.exe	83
PID 3472 wrote to memory of 2740	3472	5.exe	83
PID 2740 wrote to memory of 2448	2740	cmd.exe	85
PID 2740 wrote to memory of 2448	2740	cmd.exe	85
PID 2740 wrote to memory of 2448	2740	cmd.exe	85
PID 2740 wrote to memory of 1060	2740	cmd.exe	87
PID 2740 wrote to memory of 1060	2740	cmd.exe	87
PID 2740 wrote to memory of 1060	2740	cmd.exe	87

C:\Users\Admin\AppData\Local\Temp\e029107139c27f93a1ad1e718dc27369.exe
"C:\Users\Admin\AppData\Local\Temp\e029107139c27f93a1ad1e718dc27369.exe"
1⤵
- Adds Run key to start application
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3244
- C:\Windows\SysWOW64\icacls.exe
  icacls "C:\Users\Admin\AppData\Local\1a95989f-733c-4f70-acd6-8d3312824d74" /deny *S-1-1-0:(OI)(CI)(DE,DC)
  2⤵
  - Modifies file permissions
  PID:184
- C:\Users\Admin\AppData\Local\Temp\e029107139c27f93a1ad1e718dc27369.exe
  "C:\Users\Admin\AppData\Local\Temp\e029107139c27f93a1ad1e718dc27369.exe" --Admin IsNotAutoStart IsNotTask
  2⤵
  - Modifies extensions of user files
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3044
- - C:\Users\Admin\AppData\Local\0f0b86bf-0290-4498-8c09-d29851e62ac5\5.exe
    "C:\Users\Admin\AppData\Local\0f0b86bf-0290-4498-8c09-d29851e62ac5\5.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:3472
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im 5.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\0f0b86bf-0290-4498-8c09-d29851e62ac5\5.exe" & del C:\ProgramData\*.dll & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2740
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im 5.exe /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:2448
    - - C:\Windows\SysWOW64\timeout.exe
        
        timeout /t 6
        5⤵
        Delays execution with timeout.exe
        
        PID:1060

C:\Users\Admin\AppData\Local\1a95989f-733c-4f70-acd6-8d3312824d74\e029107139c27f93a1ad1e718dc27369.exe
C:\Users\Admin\AppData\Local\1a95989f-733c-4f70-acd6-8d3312824d74\e029107139c27f93a1ad1e718dc27369.exe --Task
1⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:3844

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Install Root Certificate

T1130

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

Command and Control

Exfiltration

Impact

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Downloads

memory/3044-8-0x0000000002680000-0x0000000002681000-memory.dmp

Filesize
4KB

Download
memory/3044-14-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3244-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3244-2-0x0000000002690000-0x0000000002691000-memory.dmp

Filesize
4KB

Download
memory/3244-3-0x0000000002690000-0x00000000027AA000-memory.dmp

Filesize
1.1MB

Download
memory/3472-19-0x0000000002F70000-0x0000000003006000-memory.dmp

Filesize
600KB

Download
memory/3472-20-0x0000000000400000-0x0000000000499000-memory.dmp

Filesize
612KB

Download
memory/3472-18-0x0000000003200000-0x0000000003201000-memory.dmp

Filesize
4KB

Download
memory/3844-33-0x0000000002700000-0x0000000002701000-memory.dmp

Filesize
4KB

Download