stealc | bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79

Analysis

max time kernel
3s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
01-07-2024 02:00

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General

Target

bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe
Size

2.2MB
MD5

678de29625b73eaed2ac0b1b7ee45a8f
SHA1

0bc71d5cda583b96fc9cc2525fd2fe7d329f1dc8
SHA256

bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79
SHA512

16026d97d034b297f57889b3723e09eecf4fa95648d71e30cc03874091929f5376ade59d521158e62da79d35fd81c0ccb737772364ff8fb33ec952b93514ce6c
SSDEEP

49152:qpjNvr9ySAOmw4NHHO+SASagXkJr4MDkUwm:qpjNp7p4NHH8n5A

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 13 IoCs

stealer

Processes:

resource	yara_rule
behavioral2/memory/4496-8-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/4496-9-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/4496-4-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/3364-2-0x0000000004090000-0x00000000041A0000-memory.dmp	family_vidar_v7
behavioral2/memory/4496-22-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/4496-23-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/4496-40-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/4496-41-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/4496-57-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/4496-58-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/4496-69-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/4496-70-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/4496-71-0x0000000000400000-0x0000000000648000-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
Executes dropped EXE 1 IoCs

Processes:

kat4585.tmp

pid process

4496 kat4585.tmp
Suspicious use of SetThreadContext 1 IoCs

Processes:

bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe

description pid process target process

PID 3364 set thread context of 4496 3364 bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe kat4585.tmp
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

408 timeout.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

kat4585.tmp

pid process

4496 kat4585.tmp
4496 kat4585.tmp

pid	process
4496	kat4585.tmp

description	pid	process	target process
PID 3364 set thread context of 4496	3364	bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe	kat4585.tmp

pid	process
408	timeout.exe

pid	process
4496	kat4585.tmp
4496	kat4585.tmp

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe

description	pid	process	target process
PID 3364 wrote to memory of 4496	3364	bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe	kat4585.tmp
PID 3364 wrote to memory of 4496	3364	bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe	kat4585.tmp
PID 3364 wrote to memory of 4496	3364	bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe	kat4585.tmp
PID 3364 wrote to memory of 4496	3364	bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe	kat4585.tmp
PID 3364 wrote to memory of 4496	3364	bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe	kat4585.tmp
PID 3364 wrote to memory of 4496	3364	bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe	kat4585.tmp
PID 3364 wrote to memory of 4496	3364	bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe	kat4585.tmp
PID 3364 wrote to memory of 4496	3364	bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe	kat4585.tmp

C:\Users\Admin\AppData\Local\Temp\bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe
"C:\Users\Admin\AppData\Local\Temp\bc48fcd5930360730917e91926f1291a29040cdc5aa8299863ee8d2d1e00ff79.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3364

C:\Users\Admin\AppData\Local\Temp\kat4585.tmp
C:\Users\Admin\AppData\Local\Temp\kat4585.tmp
2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:4496

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat4585.tmp" & rd /s /q "C:\ProgramData\IJECAEHJJJKJ" & exit
3⤵
PID:3268

C:\Windows\SysWOW64\timeout.exe
timeout /t 10
4⤵
- Delays execution with timeout.exe
PID:408

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\kat4585.tmp
Filesize
861KB

MD5
66064dbdb70a5eb15ebf3bf65aba254b

SHA1
0284fd320f99f62aca800fb1251eff4c31ec4ed7

SHA256
6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

SHA512
b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

Download Submit
memory/3364-0-0x00000000007F0000-0x00000000007F1000-memory.dmp

Filesize
4KB

Download
memory/3364-10-0x0000000000400000-0x0000000000635000-memory.dmp

Filesize
2.2MB

Download
memory/3364-2-0x0000000004090000-0x00000000041A0000-memory.dmp

Filesize
1.1MB

Download
memory/4496-23-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4496-4-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4496-9-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4496-22-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4496-8-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4496-40-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4496-25-0x00000000200D0000-0x000000002032F000-memory.dmp

Filesize
2.4MB

Download
memory/4496-41-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4496-57-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4496-58-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4496-69-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4496-70-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4496-71-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download