stealc | 4363355d38b8c16d8b195c9f3d74a15dba8fd16088dcda9d6baab2d6cf74fefe

General

Target

4363355d38b8c16d8b195c9f3d74a15dba8fd16088dcda9d6baab2d6cf74fefe.exe
Size

349KB
MD5

71902cf0487ded744664dfa274bcdfe7
SHA1

516463a9324c3a8628a5cc023216dc68ee145be1
SHA256

4363355d38b8c16d8b195c9f3d74a15dba8fd16088dcda9d6baab2d6cf74fefe
SHA512

1ee0fe57ceb84691a71c965255dfc886ccc3cba10445754d31b01c4945b5c11411e099d4a65c97dfb40e7bff50ec34a4b0c6410b3413eca96e880e8da683ef24
SSDEEP

6144:hqv0WajNb3hJzVIcizgLfH1BYfhYda7b1sHKN5MKLjLmt:mqb3LC41BYiusHY5MK6t

Score

10^/10

stealc vidar zgrat ad7dbf02afc50b46afd33ddc12f41082 rat stealer

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

Version

9.4

Botnet

ad7dbf02afc50b46afd33ddc12f41082

C2

https://steamcommunity.com/profiles/76561199680449169

https://t.me/r1g1o

Attributes

profile_id_v2
ad7dbf02afc50b46afd33ddc12f41082
user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36 OPR/101.0.0.0

Signatures

Detect Vidar Stealer 5 IoCs

stealer

resource	yara_rule
behavioral1/memory/2204-13-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral1/memory/2204-18-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral1/memory/2204-10-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral1/memory/2204-9-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral1/memory/2204-16-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7

Detect ZGRat V1 1 IoCs

resource	yara_rule
behavioral1/memory/1276-1-0x0000000001300000-0x000000000135C000-memory.dmp	family_zgrat_v1

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1276 set thread context of 2204	1276	4363355d38b8c16d8b195c9f3d74a15dba8fd16088dcda9d6baab2d6cf74fefe.exe	28

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2108	2204	WerFault.exe	28

Modifies system certificate store 2 TTPs 3 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25	RegAsm.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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	RegAsm.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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	RegAsm.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1276 wrote to memory of 2204	1276	4363355d38b8c16d8b195c9f3d74a15dba8fd16088dcda9d6baab2d6cf74fefe.exe	28
PID 1276 wrote to memory of 2204	1276	4363355d38b8c16d8b195c9f3d74a15dba8fd16088dcda9d6baab2d6cf74fefe.exe	28
PID 1276 wrote to memory of 2204	1276	4363355d38b8c16d8b195c9f3d74a15dba8fd16088dcda9d6baab2d6cf74fefe.exe	28
PID 1276 wrote to memory of 2204	1276	4363355d38b8c16d8b195c9f3d74a15dba8fd16088dcda9d6baab2d6cf74fefe.exe	28
PID 1276 wrote to memory of 2204	1276	4363355d38b8c16d8b195c9f3d74a15dba8fd16088dcda9d6baab2d6cf74fefe.exe	28
PID 1276 wrote to memory of 2204	1276	4363355d38b8c16d8b195c9f3d74a15dba8fd16088dcda9d6baab2d6cf74fefe.exe	28
PID 1276 wrote to memory of 2204	1276	4363355d38b8c16d8b195c9f3d74a15dba8fd16088dcda9d6baab2d6cf74fefe.exe	28
PID 1276 wrote to memory of 2204	1276	4363355d38b8c16d8b195c9f3d74a15dba8fd16088dcda9d6baab2d6cf74fefe.exe	28
PID 1276 wrote to memory of 2204	1276	4363355d38b8c16d8b195c9f3d74a15dba8fd16088dcda9d6baab2d6cf74fefe.exe	28
PID 1276 wrote to memory of 2204	1276	4363355d38b8c16d8b195c9f3d74a15dba8fd16088dcda9d6baab2d6cf74fefe.exe	28
PID 1276 wrote to memory of 2204	1276	4363355d38b8c16d8b195c9f3d74a15dba8fd16088dcda9d6baab2d6cf74fefe.exe	28
PID 1276 wrote to memory of 2204	1276	4363355d38b8c16d8b195c9f3d74a15dba8fd16088dcda9d6baab2d6cf74fefe.exe	28
PID 1276 wrote to memory of 2204	1276	4363355d38b8c16d8b195c9f3d74a15dba8fd16088dcda9d6baab2d6cf74fefe.exe	28
PID 2204 wrote to memory of 2108	2204	RegAsm.exe	31
PID 2204 wrote to memory of 2108	2204	RegAsm.exe	31
PID 2204 wrote to memory of 2108	2204	RegAsm.exe	31
PID 2204 wrote to memory of 2108	2204	RegAsm.exe	31

C:\Users\Admin\AppData\Local\Temp\4363355d38b8c16d8b195c9f3d74a15dba8fd16088dcda9d6baab2d6cf74fefe.exe
"C:\Users\Admin\AppData\Local\Temp\4363355d38b8c16d8b195c9f3d74a15dba8fd16088dcda9d6baab2d6cf74fefe.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1276
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Modifies system certificate store
  - Suspicious use of WriteProcessMemory
  PID:2204
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2204 -s 1508
    3⤵
    - Program crash
    PID:2108

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
68KB

MD5
29f65ba8e88c063813cc50a4ea544e93

SHA1
05a7040d5c127e68c25d81cc51271ffb8bef3568

SHA256
1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

SHA512
e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357

Filesize
1KB

MD5
a266bb7dcc38a562631361bbf61dd11b

SHA1
3b1efd3a66ea28b16697394703a72ca340a05bd5

SHA256
df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

SHA512
0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357

Filesize
242B

MD5
9c0300b1845b7d381b5a21098d27d441

SHA1
a60f0ab7fa81ebb528cd370c0eec6338bbad15ca

SHA256
947ecd0105982d5b69285bf261b4b8183d6690757641055768aaa7224bb89cd9

SHA512
7ff5e09ae556a100eeff1b916d0e5aac1b0bd6cad3375045fe3b51030178a0d6f6960833b953fcbc74692c6a311228a6eb71fcac7b74bb534b010bb101f76bf8

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar1164.tmp

Filesize
177KB

MD5
435a9ac180383f9fa094131b173a2f7b

SHA1
76944ea657a9db94f9a4bef38f88c46ed4166983

SHA256
67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

SHA512
1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

Download Submit
memory/1276-1-0x0000000001300000-0x000000000135C000-memory.dmp

Filesize
368KB

Download
memory/1276-4-0x00000000743D0000-0x0000000074ABE000-memory.dmp

Filesize
6.9MB

Download
memory/1276-5-0x00000000743D0000-0x0000000074ABE000-memory.dmp

Filesize
6.9MB

Download
memory/1276-19-0x00000000743D0000-0x0000000074ABE000-memory.dmp

Filesize
6.9MB

Download
memory/1276-0-0x00000000743DE000-0x00000000743DF000-memory.dmp

Filesize
4KB

Download
memory/2204-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2204-9-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/2204-8-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/2204-16-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/2204-6-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/2204-10-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/2204-18-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/2204-13-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/2204-7-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads