stealc | 50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478

Analysis

max time kernel
134s
max time network
301s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
11/07/2024, 22:34

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General

Target

50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478.exe
Size

5.0MB
MD5

7888f9f71da2bfb52f5480c2721168f8
SHA1

955b213b2e4bd923720e1c942edc293111bf7c51
SHA256

50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478
SHA512

1cc69d026a264f98a7314717da3a8d1ff8a44682cfc31dff70f21c8823c3ac7c10106207294818f1bd3f39894403473062c25acdd11596b0d1c3790a50208bd4
SSDEEP

98304:fMHIOnyxaYFQEYkcUSEj/5Yo40e2ewr2DJtyg:EHIOn+aYFQ87GKJyDyg

Score

10^/10

stealc vidar 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 6 IoCs

stealer

resource	yara_rule
behavioral2/memory/4368-68-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/4368-66-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/4368-72-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/4368-85-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/4368-90-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/4368-94-0x0000000000400000-0x0000000000648000-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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3080 set thread context of 4368	3080	50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478.exe	76

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
4860	timeout.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
3080	50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478.exe
3080	50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478.exe
3080	50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478.exe
3080	50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478.exe
3080	50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478.exe
3080	50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478.exe
4368	MSBuild.exe
4368	MSBuild.exe
4368	MSBuild.exe
4368	MSBuild.exe
4368	MSBuild.exe
4368	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3080	50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3080 wrote to memory of 1148	3080	50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478.exe	73
PID 3080 wrote to memory of 1148	3080	50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478.exe	73
PID 3080 wrote to memory of 1148	3080	50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478.exe	73
PID 3080 wrote to memory of 1356	3080	50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478.exe	74
PID 3080 wrote to memory of 1356	3080	50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478.exe	74
PID 3080 wrote to memory of 1356	3080	50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478.exe	74
PID 3080 wrote to memory of 2956	3080	50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478.exe	75
PID 3080 wrote to memory of 2956	3080	50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478.exe	75
PID 3080 wrote to memory of 2956	3080	50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478.exe	75
PID 3080 wrote to memory of 4368	3080	50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478.exe	76
PID 3080 wrote to memory of 4368	3080	50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478.exe	76
PID 3080 wrote to memory of 4368	3080	50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478.exe	76
PID 3080 wrote to memory of 4368	3080	50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478.exe	76
PID 3080 wrote to memory of 4368	3080	50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478.exe	76
PID 3080 wrote to memory of 4368	3080	50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478.exe	76
PID 3080 wrote to memory of 4368	3080	50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478.exe	76
PID 3080 wrote to memory of 4368	3080	50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478.exe	76
PID 3080 wrote to memory of 4368	3080	50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478.exe	76
PID 4368 wrote to memory of 3616	4368	MSBuild.exe	78
PID 4368 wrote to memory of 3616	4368	MSBuild.exe	78
PID 4368 wrote to memory of 3616	4368	MSBuild.exe	78
PID 3616 wrote to memory of 4860	3616	cmd.exe	80
PID 3616 wrote to memory of 4860	3616	cmd.exe	80
PID 3616 wrote to memory of 4860	3616	cmd.exe	80

C:\Users\Admin\AppData\Local\Temp\50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478.exe
"C:\Users\Admin\AppData\Local\Temp\50c0cbafc373b681cbfbf19308ba55fabf5b02c91884ffddcf27eb3fd67ec478.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3080
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  PID:1148
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  PID:1356
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  PID:2956
- 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:4368
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe" & rd /s /q "C:\ProgramData\EBFBFBFIIJDA" & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3616
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      Delays execution with timeout.exe
      PID:4860

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3080-37-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-53-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-2-0x00000000053C0000-0x000000000545C000-memory.dmp

Filesize
624KB

Download
memory/3080-3-0x00000000736E0000-0x0000000073DCE000-memory.dmp

Filesize
6.9MB

Download
memory/3080-4-0x0000000005460000-0x00000000055A8000-memory.dmp

Filesize
1.3MB

Download
memory/3080-5-0x0000000005260000-0x000000000527C000-memory.dmp

Filesize
112KB

Download
memory/3080-45-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-65-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-63-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-71-0x00000000736E0000-0x0000000073DCE000-memory.dmp

Filesize
6.9MB

Download
memory/3080-70-0x00000000736E0000-0x0000000073DCE000-memory.dmp

Filesize
6.9MB

Download
memory/3080-61-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-59-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-33-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-55-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-35-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-51-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-49-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-47-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-44-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-41-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-39-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-1-0x0000000000450000-0x0000000000960000-memory.dmp

Filesize
5.1MB

Download
memory/3080-0-0x00000000736EE000-0x00000000736EF000-memory.dmp

Filesize
4KB

Download
memory/3080-57-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-31-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-29-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-27-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-25-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-23-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-21-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-19-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-17-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-15-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-13-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-11-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-9-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-7-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/3080-6-0x0000000005260000-0x0000000005275000-memory.dmp

Filesize
84KB

Download
memory/4368-66-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4368-68-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4368-72-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4368-85-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4368-90-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4368-94-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download