stealc | aacc6bdfe93b86d8502b11ffab4a08e9b14d7c44e6aa9b31a9aee278d4576fb9

Analysis

max time kernel
13s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
01-07-2024 03:22

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General

Target

aacc6bdfe93b86d8502b11ffab4a08e9b14d7c44e6aa9b31a9aee278d4576fb9.exe
Size

2.2MB
MD5

b33913c9ba214599ccc1e5806e85b758
SHA1

27e010ad3449ce8c217ebf85cb0cb4b500abe2f5
SHA256

aacc6bdfe93b86d8502b11ffab4a08e9b14d7c44e6aa9b31a9aee278d4576fb9
SHA512

d23b6e6c7ca8bba2048932b1081f9a768c99853b688e8f41db1b73949419d2a2380da0c5558a9e3e09b8599a3101f4bb4dce1abe20ca7d591f596c096bd80838
SSDEEP

24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgXv5U2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MP+21tuuIeNHYGY0LzjsJxK

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 16 IoCs

stealer

Processes:

resource	yara_rule
behavioral1/memory/1572-1-0x0000000004180000-0x0000000004293000-memory.dmp	family_vidar_v7
behavioral1/memory/4608-8-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4608-9-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4608-4-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4608-22-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4608-23-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4608-24-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4608-41-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4608-42-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4608-58-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4608-59-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4608-76-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4608-77-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4608-78-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4608-84-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4608-85-0x0000000000400000-0x0000000000648000-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:

katFFAD.tmp

pid process

4608 katFFAD.tmp
Suspicious use of SetThreadContext 1 IoCs

Processes:

aacc6bdfe93b86d8502b11ffab4a08e9b14d7c44e6aa9b31a9aee278d4576fb9.exe

description pid process target process

PID 1572 set thread context of 4608 1572 aacc6bdfe93b86d8502b11ffab4a08e9b14d7c44e6aa9b31a9aee278d4576fb9.exe katFFAD.tmp
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

3664 timeout.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

katFFAD.tmp

pid process

4608 katFFAD.tmp
4608 katFFAD.tmp

pid	process
4608	katFFAD.tmp

description	pid	process	target process
PID 1572 set thread context of 4608	1572	aacc6bdfe93b86d8502b11ffab4a08e9b14d7c44e6aa9b31a9aee278d4576fb9.exe	katFFAD.tmp

pid	process
3664	timeout.exe

pid	process
4608	katFFAD.tmp
4608	katFFAD.tmp

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

aacc6bdfe93b86d8502b11ffab4a08e9b14d7c44e6aa9b31a9aee278d4576fb9.exe

description	pid	process	target process
PID 1572 wrote to memory of 4608	1572	aacc6bdfe93b86d8502b11ffab4a08e9b14d7c44e6aa9b31a9aee278d4576fb9.exe	katFFAD.tmp
PID 1572 wrote to memory of 4608	1572	aacc6bdfe93b86d8502b11ffab4a08e9b14d7c44e6aa9b31a9aee278d4576fb9.exe	katFFAD.tmp
PID 1572 wrote to memory of 4608	1572	aacc6bdfe93b86d8502b11ffab4a08e9b14d7c44e6aa9b31a9aee278d4576fb9.exe	katFFAD.tmp
PID 1572 wrote to memory of 4608	1572	aacc6bdfe93b86d8502b11ffab4a08e9b14d7c44e6aa9b31a9aee278d4576fb9.exe	katFFAD.tmp
PID 1572 wrote to memory of 4608	1572	aacc6bdfe93b86d8502b11ffab4a08e9b14d7c44e6aa9b31a9aee278d4576fb9.exe	katFFAD.tmp
PID 1572 wrote to memory of 4608	1572	aacc6bdfe93b86d8502b11ffab4a08e9b14d7c44e6aa9b31a9aee278d4576fb9.exe	katFFAD.tmp
PID 1572 wrote to memory of 4608	1572	aacc6bdfe93b86d8502b11ffab4a08e9b14d7c44e6aa9b31a9aee278d4576fb9.exe	katFFAD.tmp
PID 1572 wrote to memory of 4608	1572	aacc6bdfe93b86d8502b11ffab4a08e9b14d7c44e6aa9b31a9aee278d4576fb9.exe	katFFAD.tmp

C:\Users\Admin\AppData\Local\Temp\aacc6bdfe93b86d8502b11ffab4a08e9b14d7c44e6aa9b31a9aee278d4576fb9.exe
"C:\Users\Admin\AppData\Local\Temp\aacc6bdfe93b86d8502b11ffab4a08e9b14d7c44e6aa9b31a9aee278d4576fb9.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1572

C:\Users\Admin\AppData\Local\Temp\katFFAD.tmp
C:\Users\Admin\AppData\Local\Temp\katFFAD.tmp
2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:4608

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\katFFAD.tmp" & rd /s /q "C:\ProgramData\IIEHCFIDHIDG" & exit
3⤵
PID:2180

C:\Windows\SysWOW64\timeout.exe
timeout /t 10
4⤵
- Delays execution with timeout.exe
PID:3664

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=2292 --field-trial-handle=2248,i,10247514684337323751,15511974759131734137,262144 --variations-seed-version /prefetch:3
1⤵
PID:3900

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=2964 --field-trial-handle=2248,i,10247514684337323751,15511974759131734137,262144 --variations-seed-version /prefetch:8
1⤵
PID:1112

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\katFFAD.tmp
Filesize
861KB

MD5
66064dbdb70a5eb15ebf3bf65aba254b

SHA1
0284fd320f99f62aca800fb1251eff4c31ec4ed7

SHA256
6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

SHA512
b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

Download Submit
memory/1572-10-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/1572-1-0x0000000004180000-0x0000000004293000-memory.dmp

Filesize
1.1MB

Download
memory/1572-0-0x00000000024C0000-0x00000000024C1000-memory.dmp

Filesize
4KB

Download
memory/4608-42-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4608-58-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4608-23-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4608-24-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4608-26-0x0000000024BD0000-0x0000000024E2F000-memory.dmp

Filesize
2.4MB

Download
memory/4608-41-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4608-9-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4608-22-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4608-59-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4608-8-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4608-76-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4608-77-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4608-78-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4608-4-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4608-84-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4608-85-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download