stealc | 12ac029fdde1e9af0c26344857f4da6c2c0851c2d639afced5402858ffa9e23b

General

Target

@!^Installer_PC_Setup_3355_?@??????_^/Setup.exe
Size

316KB
MD5

c637e5ecf625b72f4bef9d28cd81d612
SHA1

a2c1329d290e508ee9fd0eb81e7f25d57e450f8c
SHA256

111c56593668be63e1e0c79a2d33d9e2d49cdf0c5100663c72045bc6b76e9fe6
SHA512

727d78bab4fab3674eec92ca5f07df6a0095ab3b973dd227c599c70e8493592bb53bb9208cc6270713283ef0065acfad3203ddcf4dcb6d43f8727f09ceaaf2e4
SSDEEP

6144:VzsRSKkhKKXDD2mTLGxelHJ+SBae3VFpSX:6VkhZWEGxelH0SBtfpS

Score

10^/10

stealc vidar stealer

Malware Config

Extracted

Family

stealc

rc4.plain

Signatures

Detect Vidar Stealer 2 IoCs

stealer

Processes:

resource	yara_rule
behavioral1/memory/2744-28-0x0000000000C60000-0x00000000013AB000-memory.dmp	family_vidar_v7
behavioral1/memory/2744-35-0x0000000000C60000-0x00000000013AB000-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

1844 netsh.exe
2744 coml.au3
1500 WerFault.exe
1500 WerFault.exe
1500 WerFault.exe
1500 WerFault.exe
1500 WerFault.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

Setup.exe

description pid process target process

PID 1136 set thread context of 1844 1136 Setup.exe netsh.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1500 2744 WerFault.exe coml.au3
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Setup.exenetsh.exe

pid process

1136 Setup.exe
1136 Setup.exe
1844 netsh.exe
1844 netsh.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

Setup.exenetsh.exe

pid process

1136 Setup.exe
1844 netsh.exe

pid	process
1844	netsh.exe
2744	coml.au3
1500	WerFault.exe
1500	WerFault.exe
1500	WerFault.exe
1500	WerFault.exe
1500	WerFault.exe

description	pid	process	target process
PID 1136 set thread context of 1844	1136	Setup.exe	netsh.exe

pid	pid_target	process	target process
1500	2744	WerFault.exe	coml.au3

pid	process
1136	Setup.exe
1136	Setup.exe
1844	netsh.exe
1844	netsh.exe

pid	process
1136	Setup.exe
1844	netsh.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Setup.exenetsh.execoml.au3

description	pid	process	target process
PID 1136 wrote to memory of 1844	1136	Setup.exe	netsh.exe
PID 1136 wrote to memory of 1844	1136	Setup.exe	netsh.exe
PID 1136 wrote to memory of 1844	1136	Setup.exe	netsh.exe
PID 1136 wrote to memory of 1844	1136	Setup.exe	netsh.exe
PID 1136 wrote to memory of 1844	1136	Setup.exe	netsh.exe
PID 1844 wrote to memory of 2744	1844	netsh.exe	coml.au3
PID 1844 wrote to memory of 2744	1844	netsh.exe	coml.au3
PID 1844 wrote to memory of 2744	1844	netsh.exe	coml.au3
PID 1844 wrote to memory of 2744	1844	netsh.exe	coml.au3
PID 1844 wrote to memory of 2744	1844	netsh.exe	coml.au3
PID 1844 wrote to memory of 2744	1844	netsh.exe	coml.au3
PID 2744 wrote to memory of 1500	2744	coml.au3	WerFault.exe
PID 2744 wrote to memory of 1500	2744	coml.au3	WerFault.exe
PID 2744 wrote to memory of 1500	2744	coml.au3	WerFault.exe
PID 2744 wrote to memory of 1500	2744	coml.au3	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\@!^Installer_PC_Setup_3355__@_______^\Setup.exe
"C:\Users\Admin\AppData\Local\Temp\@!^Installer_PC_Setup_3355__@_______^\Setup.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1136

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:1844

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:2744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2744 -s 148
4⤵
- Loads dropped DLL
- Program crash
PID:1500

MITRE ATT&CK Matrix

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Downloads

C:\Users\Admin\AppData\Local\Temp\1c9d627f
Filesize
6.8MB

MD5
df9e1a3e03d0bd7969e92e108983caf9

SHA1
b1f4bec7a5a32e444554bb72ae76b7550a71d271

SHA256
a410684e6534d484241933a14eb90bcae991483adc89321a0e26b93231f88efd

SHA512
e3a9723ff5f5b7c1164b6275e1f12c20fdd18b41692a85e48dc9fbf3e68ca696c522ba88d9aed5cb71231eb7c87fe734ed16f47789d196f036a494bf303f6ea6

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

MD5
c56b5f0201a3b3de53e561fe76912bfd

SHA1
2a4062e10a5de813f5688221dbeb3f3ff33eb417

SHA256
237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d

SHA512
195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c

Download Submit
memory/1136-10-0x000007FEF5818000-0x000007FEF5819000-memory.dmp

Filesize
4KB

Download
memory/1136-11-0x000007FEF5801000-0x000007FEF5819000-memory.dmp

Filesize
96KB

Download
memory/1136-13-0x000007FEF5801000-0x000007FEF5819000-memory.dmp

Filesize
96KB

Download
memory/1844-19-0x00000000735E0000-0x0000000073754000-memory.dmp

Filesize
1.5MB

Download
memory/1844-18-0x00000000735EE000-0x00000000735F0000-memory.dmp

Filesize
8KB

Download
memory/1844-17-0x00000000735E0000-0x0000000073754000-memory.dmp

Filesize
1.5MB

Download
memory/1844-15-0x00000000772E0000-0x0000000077489000-memory.dmp

Filesize
1.7MB

Download
memory/1844-26-0x00000000735E0000-0x0000000073754000-memory.dmp

Filesize
1.5MB

Download
memory/2744-25-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2744-24-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2744-28-0x0000000000C60000-0x00000000013AB000-memory.dmp

Filesize
7.3MB

Download
memory/2744-35-0x0000000000C60000-0x00000000013AB000-memory.dmp

Filesize
7.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads