stealc | dd7c1430384dd71a0c6733a0b6ca33644f817742adaa9e0ed7b1a8f93c0084f5 | Triage

Analysis

max time kernel
117s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
25/06/2024, 10:49

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

sdf34ert3etgrthrthfghfghjfgh.exe
Size

2.2MB
MD5

1e4ba64f4ead25f8dae133a4fb22060e
SHA1

a45d16c168b6125ec79a5485bc88705271181060
SHA256

dd7c1430384dd71a0c6733a0b6ca33644f817742adaa9e0ed7b1a8f93c0084f5
SHA512

98c6c6cc0a1623da98491c797667a6cb28d082c091261754e7530e4ca4dcfab9081f9228dff13d60da59a33bada1044b744eee1fa0fe85c35fa6fe364a1db024
SSDEEP

49152:lAgY7fvVtbBaxmcqMTBe23KQl+bH4JbjzzEBETT29YMST:llY7nTMBTBe23KQl+bYxzIBA6uMST

Score

10^/10

stealc vidar discovery spyware stealer

Malware Config

Extracted

Family

vidar

C2

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 10 IoCs

resource	yara_rule
behavioral3/memory/956-2-0x00000000029E0000-0x0000000002AF0000-memory.dmp	family_vidar_v7
behavioral3/memory/2236-9-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral3/memory/2236-8-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral3/memory/2236-4-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral3/memory/2236-20-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral3/memory/2236-23-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral3/memory/2236-24-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral3/memory/2236-25-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral3/memory/2236-35-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral3/memory/2236-36-0x0000000000400000-0x0000000000648000-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
Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
2236	kat5469.tmp

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 956 set thread context of 2236	956	sdf34ert3etgrthrthfghfghjfgh.exe	86

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	kat5469.tmp
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	kat5469.tmp

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2236	kat5469.tmp
2236	kat5469.tmp
2236	kat5469.tmp
2236	kat5469.tmp

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 956 wrote to memory of 2236	956	sdf34ert3etgrthrthfghfghjfgh.exe	86
PID 956 wrote to memory of 2236	956	sdf34ert3etgrthrthfghfghjfgh.exe	86
PID 956 wrote to memory of 2236	956	sdf34ert3etgrthrthfghfghjfgh.exe	86
PID 956 wrote to memory of 2236	956	sdf34ert3etgrthrthfghfghjfgh.exe	86
PID 956 wrote to memory of 2236	956	sdf34ert3etgrthrthfghfghjfgh.exe	86
PID 956 wrote to memory of 2236	956	sdf34ert3etgrthrthfghfghjfgh.exe	86
PID 956 wrote to memory of 2236	956	sdf34ert3etgrthrthfghfghjfgh.exe	86
PID 956 wrote to memory of 2236	956	sdf34ert3etgrthrthfghfghjfgh.exe	86

C:\Users\Admin\AppData\Local\Temp\sdf34ert3etgrthrthfghfghjfgh.exe
"C:\Users\Admin\AppData\Local\Temp\sdf34ert3etgrthrthfghfghjfgh.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:956
- C:\Users\Admin\AppData\Local\Temp\kat5469.tmp
  C:\Users\Admin\AppData\Local\Temp\kat5469.tmp
  2⤵
  - Executes dropped EXE
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:2236

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

Credentials In Files

Discovery

Query Registry

System Information Discovery

Lateral Movement

Collection

Data from Local System

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\kat5469.tmp

Filesize
861KB

MD5
66064dbdb70a5eb15ebf3bf65aba254b

SHA1
0284fd320f99f62aca800fb1251eff4c31ec4ed7

SHA256
6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

SHA512
b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

Download Submit
memory/956-0-0x00000000023B0000-0x00000000023B1000-memory.dmp

Filesize
4KB

Download
memory/956-2-0x00000000029E0000-0x0000000002AF0000-memory.dmp

Filesize
1.1MB

Download
memory/956-10-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/2236-4-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2236-8-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2236-9-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2236-20-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2236-23-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2236-24-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2236-25-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2236-27-0x0000000022760000-0x00000000229BF000-memory.dmp

Filesize
2.4MB

Download
memory/2236-35-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2236-36-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download