stealc | 2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168

Analysis

max time kernel
22s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
30-06-2024 21:00

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General

Target

2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exe
Size

2.2MB
MD5

f133a7d9de06d03e58d8a8647f3ac8d6
SHA1

2a097ce4f6870abfebc176c074324cb4388d3368
SHA256

2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168
SHA512

0056c12442c2fdc3b90a0e6a6a9625315cb21661712a2e5658e2e836b00834ee981cff875b9f0a52f87d370161c1adcf98449c5c66973e02a4b5af207facf8af
SSDEEP

24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgXHMU2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MPD21tuuIeNHYGY0LzjsJxK

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 15 IoCs

stealer

Processes:

resource	yara_rule
behavioral1/memory/1972-1-0x0000000004220000-0x0000000004333000-memory.dmp	family_vidar_v7
behavioral1/memory/4352-8-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4352-9-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4352-4-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4352-22-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4352-23-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4352-24-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4352-41-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4352-42-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4352-58-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4352-64-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4352-76-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4352-80-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4352-81-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4352-87-0x0000000000400000-0x0000000000648000-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:

kat2630.tmp

pid process

4352 kat2630.tmp
Suspicious use of SetThreadContext 1 IoCs

Processes:

2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exe

description pid process target process

PID 1972 set thread context of 4352 1972 2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exe kat2630.tmp
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1192 timeout.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

kat2630.tmp

pid process

4352 kat2630.tmp
4352 kat2630.tmp

pid	process
4352	kat2630.tmp

description	pid	process	target process
PID 1972 set thread context of 4352	1972	2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exe	kat2630.tmp

pid	process
1192	timeout.exe

pid	process
4352	kat2630.tmp
4352	kat2630.tmp

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exe

description	pid	process	target process
PID 1972 wrote to memory of 4352	1972	2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exe	kat2630.tmp
PID 1972 wrote to memory of 4352	1972	2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exe	kat2630.tmp
PID 1972 wrote to memory of 4352	1972	2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exe	kat2630.tmp
PID 1972 wrote to memory of 4352	1972	2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exe	kat2630.tmp
PID 1972 wrote to memory of 4352	1972	2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exe	kat2630.tmp
PID 1972 wrote to memory of 4352	1972	2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exe	kat2630.tmp
PID 1972 wrote to memory of 4352	1972	2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exe	kat2630.tmp
PID 1972 wrote to memory of 4352	1972	2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exe	kat2630.tmp

C:\Users\Admin\AppData\Local\Temp\2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exe
"C:\Users\Admin\AppData\Local\Temp\2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1972

C:\Users\Admin\AppData\Local\Temp\kat2630.tmp
C:\Users\Admin\AppData\Local\Temp\kat2630.tmp
2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:4352

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat2630.tmp" & rd /s /q "C:\ProgramData\BGHJEBKJEGHJ" & exit
3⤵
PID:2336

C:\Windows\SysWOW64\timeout.exe
timeout /t 10
4⤵
- Delays execution with timeout.exe
PID:1192

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --mojo-platform-channel-handle=3524 --field-trial-handle=2252,i,16022092570067181109,3235558581947505669,262144 --variations-seed-version /prefetch:3
1⤵
PID:4560

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1400 --field-trial-handle=2252,i,16022092570067181109,3235558581947505669,262144 --variations-seed-version /prefetch:8
1⤵
PID:2672

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\SCT Auditing Pending Reports
Filesize
2B

MD5
d751713988987e9331980363e24189ce

SHA1
97d170e1550eee4afc0af065b78cda302a97674c

SHA256
4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

SHA512
b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Sdch Dictionaries
Filesize
40B

MD5
20d4b8fa017a12a108c87f540836e250

SHA1
1ac617fac131262b6d3ce1f52f5907e31d5f6f00

SHA256
6028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d

SHA512
507b2b8a8a168ff8f2bdafa5d9d341c44501a5f17d9f63f3d43bd586bc9e8ae33221887869fa86f845b7d067cb7d2a7009efd71dda36e03a40a74fee04b86856

Download Submit
C:\Users\Admin\AppData\Local\Temp\kat2630.tmp
Filesize
861KB

MD5
66064dbdb70a5eb15ebf3bf65aba254b

SHA1
0284fd320f99f62aca800fb1251eff4c31ec4ed7

SHA256
6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

SHA512
b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

Download Submit
memory/1972-10-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/1972-1-0x0000000004220000-0x0000000004333000-memory.dmp

Filesize
1.1MB

Download
memory/1972-0-0x00000000023E0000-0x00000000023E1000-memory.dmp

Filesize
4KB

Download
memory/4352-27-0x00000000226D0000-0x000000002292F000-memory.dmp

Filesize
2.4MB

Download
memory/4352-58-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4352-23-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4352-24-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4352-4-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4352-41-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4352-42-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4352-22-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4352-9-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4352-64-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4352-76-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4352-80-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4352-81-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4352-8-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4352-87-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download