stealc | ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f

Analysis

max time kernel
146s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20240611-en
resource tags

arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system
submitted
03/07/2024, 08:01

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General

Target
ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe
Size 5.9MB
Sample240703-jwvb1sxfpm
SHA256 ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f
MD5 048aee0544f6faf502419b571a053980
SHA1 047c0fb760c3af3b0a1e741bd808858090dd70bf
SHA512 4fa292dade05bfc568ba6a39f129bdf88e59486faadebd64f2488fac79893c49b95c1bd7a606afae5e2add7cfece62554aa6d0e5ebd9f4eb75ba20dd462e8940
SSDEEP 98304:jYBYLosS6pvT7gIit3r648uaK9hobG/c70C0LRaFS:cBYLNS6pvT76t3r6bJK9hobZEVp
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

stealc vidar spyware stealer

Malware Config

Extracted

Family

vidar

https://t.me/bu77un
https://steamcommunity.com/profiles/76561199730044335

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.1) Gecko/20100101 Firefox/128.1

Signatures

Detect Vidar Stealer 5 IoCs

stealer

resource	yara_rule
behavioral2/memory/4564-68-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/4564-66-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/4564-72-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/4564-86-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/4564-164-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Downloads MZ/PE file

Executes dropped EXE 2 IoCs

pid	Process
1788	JEGHJDGIJE.exe
4364	AAAKEBGDAF.exe

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1124 set thread context of 4564	1124	ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe	80
PID 1788 set thread context of 1940	1788	JEGHJDGIJE.exe	87
PID 4364 set thread context of 1888	4364	AAAKEBGDAF.exe	92

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4492	1788	WerFault.exe	83
2760	4364	WerFault.exe	91

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 opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	MSBuild.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	MSBuild.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
4176	timeout.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
1124	ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe
1124	ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe
4564	MSBuild.exe
4564	MSBuild.exe
4564	MSBuild.exe
4564	MSBuild.exe
4564	MSBuild.exe
4564	MSBuild.exe
4564	MSBuild.exe
4564	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1124	ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 1124 wrote to memory of 4616	1124	ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe	79
PID 1124 wrote to memory of 4616	1124	ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe	79
PID 1124 wrote to memory of 4616	1124	ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe	79
PID 1124 wrote to memory of 4564	1124	ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe	80
PID 1124 wrote to memory of 4564	1124	ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe	80
PID 1124 wrote to memory of 4564	1124	ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe	80
PID 1124 wrote to memory of 4564	1124	ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe	80
PID 1124 wrote to memory of 4564	1124	ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe	80
PID 1124 wrote to memory of 4564	1124	ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe	80
PID 1124 wrote to memory of 4564	1124	ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe	80
PID 1124 wrote to memory of 4564	1124	ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe	80
PID 1124 wrote to memory of 4564	1124	ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe	80
PID 4564 wrote to memory of 1788	4564	MSBuild.exe	83
PID 4564 wrote to memory of 1788	4564	MSBuild.exe	83
PID 4564 wrote to memory of 1788	4564	MSBuild.exe	83
PID 1788 wrote to memory of 1940	1788	JEGHJDGIJE.exe	87
PID 1788 wrote to memory of 1940	1788	JEGHJDGIJE.exe	87
PID 1788 wrote to memory of 1940	1788	JEGHJDGIJE.exe	87
PID 1788 wrote to memory of 1940	1788	JEGHJDGIJE.exe	87
PID 1788 wrote to memory of 1940	1788	JEGHJDGIJE.exe	87
PID 1788 wrote to memory of 1940	1788	JEGHJDGIJE.exe	87
PID 1788 wrote to memory of 1940	1788	JEGHJDGIJE.exe	87
PID 1788 wrote to memory of 1940	1788	JEGHJDGIJE.exe	87
PID 1788 wrote to memory of 1940	1788	JEGHJDGIJE.exe	87
PID 4564 wrote to memory of 4364	4564	MSBuild.exe	91
PID 4564 wrote to memory of 4364	4564	MSBuild.exe	91
PID 4564 wrote to memory of 4364	4564	MSBuild.exe	91
PID 4364 wrote to memory of 1888	4364	AAAKEBGDAF.exe	92
PID 4364 wrote to memory of 1888	4364	AAAKEBGDAF.exe	92
PID 4364 wrote to memory of 1888	4364	AAAKEBGDAF.exe	92
PID 4364 wrote to memory of 1888	4364	AAAKEBGDAF.exe	92
PID 4364 wrote to memory of 1888	4364	AAAKEBGDAF.exe	92
PID 4364 wrote to memory of 1888	4364	AAAKEBGDAF.exe	92
PID 4364 wrote to memory of 1888	4364	AAAKEBGDAF.exe	92
PID 4364 wrote to memory of 1888	4364	AAAKEBGDAF.exe	92
PID 4364 wrote to memory of 1888	4364	AAAKEBGDAF.exe	92
PID 4564 wrote to memory of 4124	4564	MSBuild.exe	95
PID 4564 wrote to memory of 4124	4564	MSBuild.exe	95
PID 4564 wrote to memory of 4124	4564	MSBuild.exe	95
PID 4124 wrote to memory of 4176	4124	cmd.exe	97
PID 4124 wrote to memory of 4176	4124	cmd.exe	97
PID 4124 wrote to memory of 4176	4124	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe
"C:\Users\Admin\AppData\Local\Temp\ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1124
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  PID:4616
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4564
- - C:\ProgramData\JEGHJDGIJE.exe
    "C:\ProgramData\JEGHJDGIJE.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1788
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      4⤵
      PID:1940
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1788 -s 292
      4⤵
      Program crash
      PID:4492
- - C:\ProgramData\AAAKEBGDAF.exe
    "C:\ProgramData\AAAKEBGDAF.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:4364
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      4⤵
      PID:1888
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4364 -s 320
      4⤵
      Program crash
      PID:2760
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\EGCGHCBKFCFB" & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4124
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      Delays execution with timeout.exe
      PID:4176

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1788 -ip 1788
1⤵
PID:4260

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4364 -ip 4364
1⤵
PID:1092

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

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

AAAKEBGDAF.exe

Path C:\ProgramData\AAAKEBGDAF.exe
Size 937KB
SHA256 2fd72d0d0fbc053a53adee5d9ec6cffde3fb5a3c6ba0c0490e24552b264d5449
MD5 168c5908924803d268d26965c32a5620
SHA1 9e0e2dc9c7e931c4ee860c32d83711c433f7b1a3
SHA512 749f0e4da8d6fde35b53e769b0b594c2e63835f970eedc54c8c15889863811b5fb296650ae9f5e255bafdd4b942ad3434a60c48e05f1283820c378d30645f1c1
SSDEEP 24576:YlrD4dQCg30l8cwMKAWgXkALsi3XoiHbL1/2E47kRh2gPilPfy:6RE6cwMKAHO6XoGR/Slhi
MD5 SHA1 SHA512 SSDEEP

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JEGHJDGIJE.exe

Path C:\ProgramData\JEGHJDGIJE.exe
Size 516KB
SHA256 07c09ba5a84f619e5b83a54298ffc58d20b00f14399c7a94b7f02b70efc60f35
MD5 0309dd0131150796ea99b30a62194fae
SHA1 2df6e334708eae810a74b844fd57e18e9fdc34cd
SHA512 3d4e5a0718d04fee92d8040880b631107d1e23a6b3bce430d58769179af999c28b99e50c5cd45f283339f7bbb24ffacbf601a5447edb12e28da4517fbfa282e8
SSDEEP 12288:YwFARGxNB+mIuUOI+J0X6KALNGK34y1sB2Y+Jg4c:Yj4xb+mrZj1VHSB2Y6d
MD5 SHA1 SHA512 SSDEEP

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memory/1124-35-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-59-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-4-0x0000000005660000-0x00000000057BE000-memory.dmp

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memory/1124-5-0x00000000054A0000-0x00000000054BC000-memory.dmp

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memory/1124-17-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-15-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-65-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-163-0x0000000074620000-0x0000000074DD1000-memory.dmp

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memory/1124-1-0x0000000000340000-0x000000000091C000-memory.dmp

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memory/1124-70-0x0000000074620000-0x0000000074DD1000-memory.dmp

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memory/1124-63-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-61-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-33-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-55-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-54-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-51-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-49-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-47-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-45-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-43-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-41-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-37-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-3-0x0000000074620000-0x0000000074DD1000-memory.dmp

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memory/1124-0-0x000000007462E000-0x000000007462F000-memory.dmp

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memory/1124-9-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-29-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-27-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-25-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-24-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-21-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-13-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-31-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-7-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-57-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-39-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-19-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-11-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-6-0x00000000054A0000-0x00000000054B5000-memory.dmp

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memory/1124-71-0x0000000074620000-0x0000000074DD1000-memory.dmp

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memory/1124-2-0x0000000005400000-0x000000000549C000-memory.dmp

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memory/1788-144-0x0000000000FB0000-0x0000000000FB1000-memory.dmp

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memory/1940-148-0x0000000000400000-0x000000000045A000-memory.dmp

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memory/4564-86-0x0000000000400000-0x0000000000648000-memory.dmp

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memory/4564-72-0x0000000000400000-0x0000000000648000-memory.dmp

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memory/4564-66-0x0000000000400000-0x0000000000648000-memory.dmp

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memory/4564-68-0x0000000000400000-0x0000000000648000-memory.dmp

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memory/4564-164-0x0000000000400000-0x0000000000648000-memory.dmp

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