stealc | 8c984d1cd3cdcfa53d735568c02ec35e0b7104da679442c275329e0748423d38

Analysis

max time kernel
122s
max time network
130s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
29-06-2024 13:39

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General

Target

Setup.exe
Size

40.0MB
MD5

36408e074e73dd9c328bfbddebe68c3e
SHA1

883d5d71e3adba2962eb84f42b5687dde8f1a442
SHA256

8c984d1cd3cdcfa53d735568c02ec35e0b7104da679442c275329e0748423d38
SHA512

99bec46233b4361b22e3b51a999b00c03052b6ddd7c035b80a65f5c08a3b81473c68be8d39a0415d2ea8966565e94a35b623e3ab8dc6a1ea6abc5c17e4910333
SSDEEP

98304:F9sgNLBXKolKOUnOqoDJA669v/XH5bPGroIk:F6gdTMrKJAJlJzD

Score

10^/10

stealc vidar stealer

Malware Config

Extracted

Family

vidar

https://t.me/g067n

https://steamcommunity.com/profiles/76561199707802586

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0

Signatures

Detect Vidar Stealer 2 IoCs

stealer

Processes:

resource	yara_rule
behavioral1/memory/2488-26-0x0000000000740000-0x0000000000989000-memory.dmp	family_vidar_v7
behavioral1/memory/2488-33-0x0000000000740000-0x0000000000989000-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
Loads dropped DLL 7 IoCs

Processes:

more.comVIDA.au3WerFault.exe

pid process

2836 more.com
2488 VIDA.au3
2936 WerFault.exe
2936 WerFault.exe
2936 WerFault.exe
2936 WerFault.exe
2936 WerFault.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

Setup.exe

description pid process target process

PID 2352 set thread context of 2836 2352 Setup.exe more.com
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2936 2488 WerFault.exe VIDA.au3
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Setup.exemore.com

pid process

2352 Setup.exe
2352 Setup.exe
2836 more.com
2836 more.com
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

Setup.exemore.com

pid process

2352 Setup.exe
2836 more.com

pid	process
2836	more.com
2488	VIDA.au3
2936	WerFault.exe
2936	WerFault.exe
2936	WerFault.exe
2936	WerFault.exe
2936	WerFault.exe

description	pid	process	target process
PID 2352 set thread context of 2836	2352	Setup.exe	more.com

pid	pid_target	process	target process
2936	2488	WerFault.exe	VIDA.au3

pid	process
2352	Setup.exe
2352	Setup.exe
2836	more.com
2836	more.com

pid	process
2352	Setup.exe
2836	more.com

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Setup.exemore.comVIDA.au3

description	pid	process	target process
PID 2352 wrote to memory of 2836	2352	Setup.exe	more.com
PID 2352 wrote to memory of 2836	2352	Setup.exe	more.com
PID 2352 wrote to memory of 2836	2352	Setup.exe	more.com
PID 2352 wrote to memory of 2836	2352	Setup.exe	more.com
PID 2352 wrote to memory of 2836	2352	Setup.exe	more.com
PID 2836 wrote to memory of 2488	2836	more.com	VIDA.au3
PID 2836 wrote to memory of 2488	2836	more.com	VIDA.au3
PID 2836 wrote to memory of 2488	2836	more.com	VIDA.au3
PID 2836 wrote to memory of 2488	2836	more.com	VIDA.au3
PID 2836 wrote to memory of 2488	2836	more.com	VIDA.au3
PID 2836 wrote to memory of 2488	2836	more.com	VIDA.au3
PID 2488 wrote to memory of 2936	2488	VIDA.au3	WerFault.exe
PID 2488 wrote to memory of 2936	2488	VIDA.au3	WerFault.exe
PID 2488 wrote to memory of 2936	2488	VIDA.au3	WerFault.exe
PID 2488 wrote to memory of 2936	2488	VIDA.au3	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\Setup.exe
"C:\Users\Admin\AppData\Local\Temp\Setup.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2352

C:\Windows\SysWOW64\more.com
C:\Windows\SysWOW64\more.com
2⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2836

C:\Users\Admin\AppData\Local\Temp\VIDA.au3
C:\Users\Admin\AppData\Local\Temp\VIDA.au3
3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2488 -s 148
4⤵
- Loads dropped DLL
- Program crash
PID:2936

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\b6b56198
Filesize
1.7MB

MD5
a26a5154155daf58c548cc8c265989e8

SHA1
9e50d00fa14a124fc8d3738a30f97855d9b19233

SHA256
c7653f14cfc64b28e9ecb54e3b29d921dee05d0ff22d148f36e8a8ab15535698

SHA512
054bb206d31b7a4884598d1cfc46a45e26747a42e69e693fd87b83f4fa0f892660955517855abcbdfefc1362dcdd911463d71f106d991d577733072af0fb4ca1

Download Submit
C:\Users\Admin\AppData\Local\Temp\ba79f85c
Filesize
1.7MB

MD5
dcbdf7f7299702e23c54fbc985d5e291

SHA1
906f8b3d39b7f0c4939c56a0d6fc8efe645d7c3e

SHA256
13c4ddcc23382f0702174335f082e7239635a38a1c59091dae02a803ad3e088c

SHA512
690b4d0251a832003b86c38790e8cde9dd045d0c0610f16801e9c83e380860157b64cfc1c94d3ecb4242d1c2f8a83bb4dcaa12be73dc8443d9fe83f2fab112b2

Download Submit
\Users\Admin\AppData\Local\Temp\VIDA.au3
Filesize
872KB

MD5
c56b5f0201a3b3de53e561fe76912bfd

SHA1
2a4062e10a5de813f5688221dbeb3f3ff33eb417

SHA256
237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d

SHA512
195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c

Download Submit
memory/2352-8-0x0000000073FF2000-0x0000000073FF4000-memory.dmp

Filesize
8KB

Download
memory/2352-6-0x0000000073FE0000-0x0000000074154000-memory.dmp

Filesize
1.5MB

Download
memory/2352-9-0x0000000073FE0000-0x0000000074154000-memory.dmp

Filesize
1.5MB

Download
memory/2352-10-0x0000000073FE0000-0x0000000074154000-memory.dmp

Filesize
1.5MB

Download
memory/2352-0-0x0000000000400000-0x00000000008EB000-memory.dmp

Filesize
4.9MB

Download
memory/2352-7-0x0000000076F00000-0x00000000770A9000-memory.dmp

Filesize
1.7MB

Download
memory/2488-23-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2488-22-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2488-26-0x0000000000740000-0x0000000000989000-memory.dmp

Filesize
2.3MB

Download
memory/2488-33-0x0000000000740000-0x0000000000989000-memory.dmp

Filesize
2.3MB

Download
memory/2836-14-0x0000000076F00000-0x00000000770A9000-memory.dmp

Filesize
1.7MB

Download
memory/2836-16-0x0000000073FE0000-0x0000000074154000-memory.dmp

Filesize
1.5MB

Download
memory/2836-20-0x0000000073FE0000-0x0000000074154000-memory.dmp

Filesize
1.5MB

Download
memory/2836-12-0x0000000073FE0000-0x0000000074154000-memory.dmp

Filesize
1.5MB

Download
memory/2836-24-0x0000000073FE0000-0x0000000074154000-memory.dmp

Filesize
1.5MB

Download