stealc | 8680e9ff0246c2b7cd4a45a9c6262851ce8d12e4638e48cb1baec267c2b6ea6b

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30/11/2024, 21:39

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General

Target

TTDesktop18.exe
Size

26.0MB
MD5

13eb2bb3303156d695ecf3f2b2c09eb7
SHA1

db1f2877681d02201c6c9d71d8c52a872c3612b9
SHA256

8680e9ff0246c2b7cd4a45a9c6262851ce8d12e4638e48cb1baec267c2b6ea6b
SHA512

6f44a7f1612f0eb4843c1e0de757a03f53d2b14e7aa8b7f983c2ca9baf0701d30f129edeab9c889655840782a1289fb4d0bf0699223e3c584afdaa4ee5172172
SSDEEP

192:0qgaiJUFTQcHVPtAXjJ9vT2O3yP8B50LOZdBcmCEJXVWwTnkVOvQu:57zFEcH769vT2OCkB50LknnVTnkVUQ

Score

10^/10

stealc vidar 41d35cbb974bc2d1287dcd4381b4a2a8 discovery execution stealer

Malware Config

Extracted

Family

vidar

Version

11.8

Botnet

41d35cbb974bc2d1287dcd4381b4a2a8

https://t.me/fu4chmo

https://steamcommunity.com/profiles/76561199802540894

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Safari/605.1.15 Ddg/17.6

Signatures

Detect Vidar Stealer 3 IoCs

stealer

resource	yara_rule
behavioral2/files/0x000a000000023b87-138.dat	family_vidar_v7
behavioral2/memory/4168-142-0x0000000000A10000-0x0000000000C69000-memory.dmp	family_vidar_v7
behavioral2/memory/4168-160-0x0000000000A10000-0x0000000000C69000-memory.dmp	family_vidar_v7

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Stealc family
stealc
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Vidar family
vidar

Command and Scripting Interpreter: PowerShell 1 TTPs 6 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
3416	powershell.exe
4528	powershell.exe
1572	powershell.exe
2440	powershell.exe
1672	powershell.exe
4860	powershell.exe

Downloads MZ/PE file

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	TTDesktop18.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	zxQdBDcDxA.exe

Executes dropped EXE 1 IoCs

pid	Process
4168	zxQdBDcDxA.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

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
20	raw.githubusercontent.com
21	raw.githubusercontent.com

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TTDesktop18.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zxQdBDcDxA.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe

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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2848	timeout.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2440	powershell.exe
2440	powershell.exe
1672	powershell.exe
1672	powershell.exe
4860	powershell.exe
4860	powershell.exe
3416	powershell.exe
3416	powershell.exe
4528	powershell.exe
4528	powershell.exe
1572	powershell.exe
1572	powershell.exe
4168	zxQdBDcDxA.exe
4168	zxQdBDcDxA.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	2440	powershell.exe
Token: SeDebugPrivilege	1672	powershell.exe
Token: SeDebugPrivilege	4860	powershell.exe
Token: SeDebugPrivilege	3416	powershell.exe
Token: SeDebugPrivilege	4528	powershell.exe
Token: SeDebugPrivilege	1572	powershell.exe
Token: SeDebugPrivilege	3644	TTDesktop18.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 3644 wrote to memory of 2440	3644	TTDesktop18.exe	83
PID 3644 wrote to memory of 2440	3644	TTDesktop18.exe	83
PID 3644 wrote to memory of 2440	3644	TTDesktop18.exe	83
PID 2440 wrote to memory of 1672	2440	powershell.exe	85
PID 2440 wrote to memory of 1672	2440	powershell.exe	85
PID 2440 wrote to memory of 1672	2440	powershell.exe	85
PID 3644 wrote to memory of 4860	3644	TTDesktop18.exe	86
PID 3644 wrote to memory of 4860	3644	TTDesktop18.exe	86
PID 3644 wrote to memory of 4860	3644	TTDesktop18.exe	86
PID 4860 wrote to memory of 3416	4860	powershell.exe	88
PID 4860 wrote to memory of 3416	4860	powershell.exe	88
PID 4860 wrote to memory of 3416	4860	powershell.exe	88
PID 3644 wrote to memory of 4528	3644	TTDesktop18.exe	89
PID 3644 wrote to memory of 4528	3644	TTDesktop18.exe	89
PID 3644 wrote to memory of 4528	3644	TTDesktop18.exe	89
PID 4528 wrote to memory of 1572	4528	powershell.exe	91
PID 4528 wrote to memory of 1572	4528	powershell.exe	91
PID 4528 wrote to memory of 1572	4528	powershell.exe	91
PID 3644 wrote to memory of 4168	3644	TTDesktop18.exe	97
PID 3644 wrote to memory of 4168	3644	TTDesktop18.exe	97
PID 3644 wrote to memory of 4168	3644	TTDesktop18.exe	97
PID 4168 wrote to memory of 3028	4168	zxQdBDcDxA.exe	102
PID 4168 wrote to memory of 3028	4168	zxQdBDcDxA.exe	102
PID 4168 wrote to memory of 3028	4168	zxQdBDcDxA.exe	102
PID 3028 wrote to memory of 2848	3028	cmd.exe	104
PID 3028 wrote to memory of 2848	3028	cmd.exe	104
PID 3028 wrote to memory of 2848	3028	cmd.exe	104

C:\Users\Admin\AppData\Local\Temp\TTDesktop18.exe
"C:\Users\Admin\AppData\Local\Temp\TTDesktop18.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3644
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" powershell -Command "Add-MpPreference -ExclusionPath 'C:\HsQoDvna'"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2440
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command Add-MpPreference -ExclusionPath C:\HsQoDvna
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1672
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" powershell -Command "Add-MpPreference -ExclusionPath 'C:\Users'"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4860
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command Add-MpPreference -ExclusionPath C:\Users
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3416
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" powershell -Command "Add-MpPreference -ExclusionPath 'C:\Windows'"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4528
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command Add-MpPreference -ExclusionPath C:\Windows
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1572
- C:\HsQoDvna\zxQdBDcDxA.exe
  "C:\HsQoDvna\zxQdBDcDxA.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4168
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\HsQoDvna\zxQdBDcDxA.exe" & rd /s /q "C:\ProgramData\BGCFBGDHJKFI" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3028
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:2848

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\HsQoDvna\zxQdBDcDxA.exe

Filesize
275KB

MD5
0a7b3454fdad8431bd3523648c915665

SHA1
800a97a7c1a92a92cac76afc1fe5349895ee5287

SHA256
baf217d7bb8f3a86856def6891638318a94ed5d7082149d4dd4cb755d90d86ce

SHA512
020e45eaeee083d6739155d9a821ab54dd07f1320b8efb73871ee5d29188122fdbb7d39b34a8b3694a8b0c08ae1801ec370e40ff8d837c9190a72905f26baff9

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
3d086a433708053f9bf9523e1d87a4e8

SHA1
b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

SHA256
6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

SHA512
931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
11KB

MD5
249652c80056c84943a9f1f134667dc9

SHA1
71d82e89d7268cb037676c49a4028866325a5630

SHA256
f0a441298ed176066e66e37279586d14357ccd8af633f14f7f216fa63f699de7

SHA512
ef0f83521969ee872d119f83725d22d807f25fdf3df011c3ccc5e3ccc9483137e8bdc5b690bb9544fab902697eaa8223cea30a397544a2b977975ea4f4cac38f

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
11KB

MD5
28c90f050f27eac75f63a7c77a132383

SHA1
b156de3a9c38f919a25d13a39e49527da0133dcb

SHA256
9fffb58299b653a7a8f2a3cf6ac3e31b45ca08117591040180b6545651989486

SHA512
0e9a1d0b068f2daa762887b4ce413c2ec73952db06c74ae5408b28c6264bee61df0a46142fdf7597c67b5e8cd6516237eb10de23eaccec4333b6e7f193e4cfd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
11KB

MD5
45a88aeb083ddf4471010c6da84ad48e

SHA1
780d3cb8742a6f37e6fc250e4a059e1ac52f1aef

SHA256
598f0f07e4d345be079ac8ab2a6a1ae70634c36ec2e1b713580e3f48abccf8fa

SHA512
08d31ae5dad2ed90f80c780ae2801b68e1e28ff6e693a9ff119831124d21522e25cdab48a6d6d741f5195d1f8cd868eda3977a344f68ddd4e759661fdc53a8bf

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tgg55lby.2ix.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1572-120-0x00000000711A0000-0x00000000711EC000-memory.dmp

Filesize
304KB

Download
memory/1672-50-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/1672-54-0x0000000007E90000-0x0000000007F26000-memory.dmp

Filesize
600KB

Download
memory/1672-62-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/1672-59-0x0000000007F30000-0x0000000007F38000-memory.dmp

Filesize
32KB

Download
memory/1672-58-0x0000000007F50000-0x0000000007F6A000-memory.dmp

Filesize
104KB

Download
memory/1672-57-0x0000000007E50000-0x0000000007E64000-memory.dmp

Filesize
80KB

Download
memory/1672-56-0x0000000007E40000-0x0000000007E4E000-memory.dmp

Filesize
56KB

Download
memory/1672-22-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/1672-23-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/1672-24-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/1672-55-0x0000000007E10000-0x0000000007E21000-memory.dmp

Filesize
68KB

Download
memory/1672-35-0x0000000007A60000-0x0000000007A92000-memory.dmp

Filesize
200KB

Download
memory/1672-36-0x00000000711A0000-0x00000000711EC000-memory.dmp

Filesize
304KB

Download
memory/1672-47-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/1672-46-0x0000000007AA0000-0x0000000007ABE000-memory.dmp

Filesize
120KB

Download
memory/1672-48-0x0000000007AD0000-0x0000000007B73000-memory.dmp

Filesize
652KB

Download
memory/1672-49-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/1672-53-0x0000000007C80000-0x0000000007C8A000-memory.dmp

Filesize
40KB

Download
memory/1672-51-0x0000000008250000-0x00000000088CA000-memory.dmp

Filesize
6.5MB

Download
memory/1672-52-0x0000000007C10000-0x0000000007C2A000-memory.dmp

Filesize
104KB

Download
memory/2440-5-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/2440-67-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/2440-2-0x0000000003020000-0x0000000003056000-memory.dmp

Filesize
216KB

Download
memory/2440-21-0x0000000006960000-0x00000000069AC000-memory.dmp

Filesize
304KB

Download
memory/2440-20-0x0000000006930000-0x000000000694E000-memory.dmp

Filesize
120KB

Download
memory/2440-19-0x0000000006310000-0x0000000006664000-memory.dmp

Filesize
3.3MB

Download
memory/2440-7-0x0000000005990000-0x00000000059B2000-memory.dmp

Filesize
136KB

Download
memory/2440-9-0x00000000061E0000-0x0000000006246000-memory.dmp

Filesize
408KB

Download
memory/2440-63-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/2440-3-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/2440-8-0x0000000005A30000-0x0000000005A96000-memory.dmp

Filesize
408KB

Download
memory/2440-4-0x0000000005AB0000-0x00000000060D8000-memory.dmp

Filesize
6.2MB

Download
memory/2440-6-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/3416-88-0x00000000711A0000-0x00000000711EC000-memory.dmp

Filesize
304KB

Download
memory/3644-0-0x00000000753AE000-0x00000000753AF000-memory.dmp

Filesize
4KB

Download
memory/3644-34-0x00000000753AE000-0x00000000753AF000-memory.dmp

Filesize
4KB

Download
memory/3644-133-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/3644-1-0x0000000000D20000-0x0000000000D2A000-memory.dmp

Filesize
40KB

Download
memory/3644-146-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/4168-142-0x0000000000A10000-0x0000000000C69000-memory.dmp

Filesize
2.3MB

Download
memory/4168-160-0x0000000000A10000-0x0000000000C69000-memory.dmp

Filesize
2.3MB

Download
memory/4860-77-0x0000000005DF0000-0x0000000006144000-memory.dmp

Filesize
3.3MB

Download