stealc | 1f7553701ef80138d6fd387a8a5919bd34684600b8c81e45102d2a4c720786c1

Analysis

max time kernel
149s
max time network
123s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
15-06-2024 12:11

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General

Target

#!~#0Pen_9898_P@$SW0rd~!!$/Setup.exe
Size

5.4MB
MD5

ad2735f096925010a53450cb4178c89e
SHA1

c6d65163c6315a642664f4eaec0fae9528549bfe
SHA256

4e775b5fafb4e6d89a4694f8694d2b8b540534bd4a52ff42f70095f1c929160e
SHA512

1868b22a7c5cba89545b06f010c09c5418b3d86039099d681eee9567c47208fdba3b89c6251cf03c964c58c805280d45ba9c3533125f6bd3e0bc067477e03ab9
SSDEEP

98304:o/zx+riUDpJowboU+XEsumY2XW6jBYeZ1ER:2x+riUDwUj12X1tY5

Score

10^/10

stealc vidar stealer

Malware Config

Extracted

Family

stealc

rc4.plain

Signatures

Detect Vidar Stealer 2 IoCs

stealer

Processes:

resource	yara_rule
behavioral5/memory/2436-30-0x0000000000670000-0x0000000000DBB000-memory.dmp	family_vidar_v7
behavioral5/memory/2436-37-0x0000000000670000-0x0000000000DBB000-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:

netsh.execoml.au3WerFault.exe

pid process

3012 netsh.exe
2436 coml.au3
2588 WerFault.exe
2588 WerFault.exe
2588 WerFault.exe
2588 WerFault.exe
2588 WerFault.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

Setup.exe

description pid process target process

PID 2700 set thread context of 3012 2700 Setup.exe netsh.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2588 2436 WerFault.exe coml.au3
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Setup.exenetsh.exe

pid process

2700 Setup.exe
2700 Setup.exe
3012 netsh.exe
3012 netsh.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

Setup.exenetsh.exe

pid process

2700 Setup.exe
3012 netsh.exe

pid	process
3012	netsh.exe
2436	coml.au3
2588	WerFault.exe
2588	WerFault.exe
2588	WerFault.exe
2588	WerFault.exe
2588	WerFault.exe

description	pid	process	target process
PID 2700 set thread context of 3012	2700	Setup.exe	netsh.exe

pid	pid_target	process	target process
2588	2436	WerFault.exe	coml.au3

pid	process
2700	Setup.exe
2700	Setup.exe
3012	netsh.exe
3012	netsh.exe

pid	process
2700	Setup.exe
3012	netsh.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Setup.exenetsh.execoml.au3

description	pid	process	target process
PID 2700 wrote to memory of 3012	2700	Setup.exe	netsh.exe
PID 2700 wrote to memory of 3012	2700	Setup.exe	netsh.exe
PID 2700 wrote to memory of 3012	2700	Setup.exe	netsh.exe
PID 2700 wrote to memory of 3012	2700	Setup.exe	netsh.exe
PID 2700 wrote to memory of 3012	2700	Setup.exe	netsh.exe
PID 3012 wrote to memory of 2436	3012	netsh.exe	coml.au3
PID 3012 wrote to memory of 2436	3012	netsh.exe	coml.au3
PID 3012 wrote to memory of 2436	3012	netsh.exe	coml.au3
PID 3012 wrote to memory of 2436	3012	netsh.exe	coml.au3
PID 3012 wrote to memory of 2436	3012	netsh.exe	coml.au3
PID 3012 wrote to memory of 2436	3012	netsh.exe	coml.au3
PID 2436 wrote to memory of 2588	2436	coml.au3	WerFault.exe
PID 2436 wrote to memory of 2588	2436	coml.au3	WerFault.exe
PID 2436 wrote to memory of 2588	2436	coml.au3	WerFault.exe
PID 2436 wrote to memory of 2588	2436	coml.au3	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\#!~#0Pen_9898_P@$SW0rd~!!$\Setup.exe
"C:\Users\Admin\AppData\Local\Temp\#!~#0Pen_9898_P@$SW0rd~!!$\Setup.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2700

C:\Windows\SysWOW64\netsh.exe
C:\Windows\SysWOW64\netsh.exe
2⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3012

C:\Users\Admin\AppData\Local\Temp\coml.au3
C:\Users\Admin\AppData\Local\Temp\coml.au3
3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2436 -s 148
4⤵
- Loads dropped DLL
- Program crash
PID:2588

MITRE ATT&CK Matrix

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Downloads

C:\Users\Admin\AppData\Local\Temp\b5840da3
Filesize
6.8MB

MD5
d5d9d12f28db992f0c9634684052db61

SHA1
2f1d1b6429c0f0dc01058f2985e9483ddc4d5cdf

SHA256
7023d34de582a1abf7e877b46eed1c6be79d73ebe7dd852c912ac2f8525ceb88

SHA512
aac5be0bbabb7a831ddf5a5464b540e19ab9d37a3caae0f7a37055d67a8b860b7c1e854b13868df946b3a317ded9eee105cef68cde4301ec67a21b7445d3876f

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

MD5
c56b5f0201a3b3de53e561fe76912bfd

SHA1
2a4062e10a5de813f5688221dbeb3f3ff33eb417

SHA256
237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d

SHA512
195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c

Download Submit
memory/2436-37-0x0000000000670000-0x0000000000DBB000-memory.dmp

Filesize
7.3MB

Download
memory/2436-30-0x0000000000670000-0x0000000000DBB000-memory.dmp

Filesize
7.3MB

Download
memory/2436-26-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2436-27-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2700-14-0x000007FEF5A00000-0x000007FEF5B58000-memory.dmp

Filesize
1.3MB

Download
memory/2700-0-0x000007FEF5A00000-0x000007FEF5B58000-memory.dmp

Filesize
1.3MB

Download
memory/2700-13-0x000007FEF5A00000-0x000007FEF5B58000-memory.dmp

Filesize
1.3MB

Download
memory/2700-12-0x000007FEF5A18000-0x000007FEF5A19000-memory.dmp

Filesize
4KB

Download
memory/3012-21-0x00000000735B0000-0x0000000073724000-memory.dmp

Filesize
1.5MB

Download
memory/3012-20-0x00000000735BE000-0x00000000735C0000-memory.dmp

Filesize
8KB

Download
memory/3012-19-0x00000000735B0000-0x0000000073724000-memory.dmp

Filesize
1.5MB

Download
memory/3012-17-0x00000000772C0000-0x0000000077469000-memory.dmp

Filesize
1.7MB

Download
memory/3012-28-0x00000000735B0000-0x0000000073724000-memory.dmp

Filesize
1.5MB

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads