stealc | 12ca25e6461fd5a1178fdc0a4b23cfa88225dec174fbd48ff6587a50b24d5a38

Analysis

max time kernel
141s
max time network
126s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
15-06-2024 17:49

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General

Target

#)#NEw_SetUp_33778_P@$$Key#(#/New-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/2640-28-0x0000000000700000-0x0000000000E4B000-memory.dmp	family_vidar_v7
behavioral1/memory/2640-35-0x0000000000700000-0x0000000000E4B000-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

2492 netsh.exe
2640 coml.au3
2352 WerFault.exe
2352 WerFault.exe
2352 WerFault.exe
2352 WerFault.exe
2352 WerFault.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

New-Setup.exe

description pid process target process

PID 2432 set thread context of 2492 2432 New-Setup.exe netsh.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2352 2640 WerFault.exe coml.au3
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

New-Setup.exenetsh.exe

pid process

2432 New-Setup.exe
2432 New-Setup.exe
2492 netsh.exe
2492 netsh.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

New-Setup.exenetsh.exe

pid process

2432 New-Setup.exe
2492 netsh.exe

pid	process
2492	netsh.exe
2640	coml.au3
2352	WerFault.exe
2352	WerFault.exe
2352	WerFault.exe
2352	WerFault.exe
2352	WerFault.exe

description	pid	process	target process
PID 2432 set thread context of 2492	2432	New-Setup.exe	netsh.exe

pid	pid_target	process	target process
2352	2640	WerFault.exe	coml.au3

pid	process
2432	New-Setup.exe
2432	New-Setup.exe
2492	netsh.exe
2492	netsh.exe

pid	process
2432	New-Setup.exe
2492	netsh.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

New-Setup.exenetsh.execoml.au3

description	pid	process	target process
PID 2432 wrote to memory of 2492	2432	New-Setup.exe	netsh.exe
PID 2432 wrote to memory of 2492	2432	New-Setup.exe	netsh.exe
PID 2432 wrote to memory of 2492	2432	New-Setup.exe	netsh.exe
PID 2432 wrote to memory of 2492	2432	New-Setup.exe	netsh.exe
PID 2432 wrote to memory of 2492	2432	New-Setup.exe	netsh.exe
PID 2492 wrote to memory of 2640	2492	netsh.exe	coml.au3
PID 2492 wrote to memory of 2640	2492	netsh.exe	coml.au3
PID 2492 wrote to memory of 2640	2492	netsh.exe	coml.au3
PID 2492 wrote to memory of 2640	2492	netsh.exe	coml.au3
PID 2492 wrote to memory of 2640	2492	netsh.exe	coml.au3
PID 2492 wrote to memory of 2640	2492	netsh.exe	coml.au3
PID 2640 wrote to memory of 2352	2640	coml.au3	WerFault.exe
PID 2640 wrote to memory of 2352	2640	coml.au3	WerFault.exe
PID 2640 wrote to memory of 2352	2640	coml.au3	WerFault.exe
PID 2640 wrote to memory of 2352	2640	coml.au3	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\#)#NEw_SetUp_33778_P@$$Key#(#\New-Setup.exe
"C:\Users\Admin\AppData\Local\Temp\#)#NEw_SetUp_33778_P@$$Key#(#\New-Setup.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2432

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:2492

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:2640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2640 -s 148
4⤵
- Loads dropped DLL
- Program crash
PID:2352

MITRE ATT&CK Matrix

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Downloads

C:\Users\Admin\AppData\Local\Temp\7a6ca4c4
Filesize
6.8MB

MD5
168985a15bef46ebd10b275e31e46c9d

SHA1
4a5d4834db6dd2831f9c30f4de62fa589869e1af

SHA256
1fb22e0eb5240e5c941141589a94a74724570de7fa92af5762d90c310ac1e3bf

SHA512
6e57719b0723e8a5dfbd0b84e96e4c35588741acf9e5969c749b88d542c5b875fd97950270ced41d2c42140ad77db253361d06b6594fc6c794f2f2ab01a3aa51

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

MD5
c56b5f0201a3b3de53e561fe76912bfd

SHA1
2a4062e10a5de813f5688221dbeb3f3ff33eb417

SHA256
237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d

SHA512
195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c

Download Submit
memory/2432-10-0x000007FEF5C08000-0x000007FEF5C09000-memory.dmp

Filesize
4KB

Download
memory/2432-11-0x000007FEF5BF1000-0x000007FEF5C09000-memory.dmp

Filesize
96KB

Download
memory/2432-13-0x000007FEF5BF1000-0x000007FEF5C09000-memory.dmp

Filesize
96KB

Download
memory/2492-19-0x0000000073530000-0x00000000736A4000-memory.dmp

Filesize
1.5MB

Download
memory/2492-17-0x0000000073530000-0x00000000736A4000-memory.dmp

Filesize
1.5MB

Download
memory/2492-18-0x000000007353E000-0x0000000073540000-memory.dmp

Filesize
8KB

Download
memory/2492-15-0x0000000077230000-0x00000000773D9000-memory.dmp

Filesize
1.7MB

Download
memory/2492-26-0x0000000073530000-0x00000000736A4000-memory.dmp

Filesize
1.5MB

Download
memory/2640-25-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2640-24-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2640-28-0x0000000000700000-0x0000000000E4B000-memory.dmp

Filesize
7.3MB

Download
memory/2640-35-0x0000000000700000-0x0000000000E4B000-memory.dmp

Filesize
7.3MB

Download

Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads