chaos | 1d3c2088b2d712f8006279db8acb9a1c6dc3037886a655d37bf75ea5fa6b9518

max time kernel
118s
max time network
124s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
13/02/2024, 12:11

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General

Target
Malware-database-main/Electron V2.exe
Size 39KB
Sample240213-pcwzdshd2w
SHA256 04b106b179c202c67361aa4debad5d82f79a1927ab0ab8abc2ef350d18894b08
MD5 b1228ba24ca5f75f8df9d5d177e5bb2b
SHA1 1895758de51ccfefa40239aa11055540c8c5deb7
SHA512 7abc1df0089a1a00aadc11c33eecffb5d85258acc4eac0b261ceaea77e814eaf671506383fe0074fd5779b8bc58e0f48f0d15309aa81aecf27ecc6633da4c5a4
SSDEEP 768:hqo2khp1DlNjwQr9KWO4TOpkx7u/LraCvpbMC2mkek:ko2kFpNjwQr9KWODkx74L2CNf5k
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

chaos evasion ransomware spyware stealer

Malware Config

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 3 IoCs

resource	yara_rule
behavioral9/memory/1344-0-0x00000000012D0000-0x00000000012E0000-memory.dmp	family_chaos
behavioral9/files/0x000a000000012252-5.dat	family_chaos
behavioral9/memory/2536-7-0x0000000000890000-0x00000000008A0000-memory.dmp	family_chaos

Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs

ransomware evasion

Inhibit System Recovery

T1490

pid	Process
1144	bcdedit.exe
2464	bcdedit.exe

Drops startup file 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.url	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini	svchost.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\IMPORTANT.txt	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2536	svchost.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
T1552.001

Drops desktop.ini file(s) 34 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\Sample Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	svchost.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-1603059206-2004189698-4139800220-1000\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Contacts\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\Sample Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Links\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\Links for United States\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Searches\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\Sample Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\Links\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Saved Games\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	svchost.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\gnnqx2hai.jpg"	svchost.exe

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

System Information Discovery
T1082

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1620	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2536	svchost.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1344	Electron V2.exe
1344	Electron V2.exe
2536	svchost.exe
2536	svchost.exe
2536	svchost.exe
2536	svchost.exe
2536	svchost.exe
2536	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1344	Electron V2.exe
Token: SeDebugPrivilege	2536	svchost.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1344 wrote to memory of 2536	1344	Electron V2.exe	28
PID 1344 wrote to memory of 2536	1344	Electron V2.exe	28
PID 1344 wrote to memory of 2536	1344	Electron V2.exe	28
PID 2536 wrote to memory of 2620	2536	svchost.exe	30
PID 2536 wrote to memory of 2620	2536	svchost.exe	30
PID 2536 wrote to memory of 2620	2536	svchost.exe	30
PID 2620 wrote to memory of 1144	2620	cmd.exe	32
PID 2620 wrote to memory of 1144	2620	cmd.exe	32
PID 2620 wrote to memory of 1144	2620	cmd.exe	32
PID 2620 wrote to memory of 2464	2620	cmd.exe	33
PID 2620 wrote to memory of 2464	2620	cmd.exe	33
PID 2620 wrote to memory of 2464	2620	cmd.exe	33
PID 2536 wrote to memory of 1620	2536	svchost.exe	35
PID 2536 wrote to memory of 1620	2536	svchost.exe	35
PID 2536 wrote to memory of 1620	2536	svchost.exe	35

C:\Users\Admin\AppData\Local\Temp\Malware-database-main\Electron V2.exe
"C:\Users\Admin\AppData\Local\Temp\Malware-database-main\Electron V2.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1344
- C:\Users\Admin\AppData\Roaming\svchost.exe
  "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Drops desktop.ini file(s)
  - Sets desktop wallpaper using registry
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2536
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2620
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1144
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:2464
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\IMPORTANT.txt
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:1620

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Defacement

T1491

Inhibit System Recovery

T1490

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Downloads

svchost.exe

Path C:\Users\Admin\AppData\Roaming\svchost.exe
Size 39KB
SHA256 04b106b179c202c67361aa4debad5d82f79a1927ab0ab8abc2ef350d18894b08
MD5 b1228ba24ca5f75f8df9d5d177e5bb2b
SHA1 1895758de51ccfefa40239aa11055540c8c5deb7
SHA512 7abc1df0089a1a00aadc11c33eecffb5d85258acc4eac0b261ceaea77e814eaf671506383fe0074fd5779b8bc58e0f48f0d15309aa81aecf27ecc6633da4c5a4
SSDEEP 768:hqo2khp1DlNjwQr9KWO4TOpkx7u/LraCvpbMC2mkek:ko2kFpNjwQr9KWODkx74L2CNf5k
MD5 SHA1 SHA512 SSDEEP

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IMPORTANT.txt

Path C:\Users\Admin\Documents\IMPORTANT.txt
Size 763B
SHA256 fff91118e1d44de84c1876cfcb6ee5413c336dca888efb2d9af084047fe06cf6
MD5 46fe77013e7336b17e5270cc708a1da4
SHA1 c8949dbcaac904160eacafcbde51b52c0e5110f1
SHA512 b4e5bc4e20005c869e914ab9314944215dced635991772896d07731bf1711708ce74f5660bab8669de965eeac00ce7b56cfb5fd650437dfe3336c90eb3790d52
MD5 SHA1 SHA512

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memory/1344-0-0x00000000012D0000-0x00000000012E0000-memory.dmp

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memory/1344-1-0x000007FEF57D0000-0x000007FEF61BC000-memory.dmp

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memory/1344-8-0x000007FEF57D0000-0x000007FEF61BC000-memory.dmp

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memory/2536-7-0x0000000000890000-0x00000000008A0000-memory.dmp

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memory/2536-9-0x000007FEF57D0000-0x000007FEF61BC000-memory.dmp

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memory/2536-11-0x000000001AFD0000-0x000000001B050000-memory.dmp

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memory/2536-449-0x000007FEF57D0000-0x000007FEF61BC000-memory.dmp

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memory/2536-450-0x000000001AFD0000-0x000000001B050000-memory.dmp

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