stealc | 6e22c0f2732195063cb4984c6520c3b85e1236e967f8bb05b3c1b35139d2917b

Analysis

max time kernel
134s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
27-05-2024 18:40

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

file.exe
Size

8.3MB
MD5

ae47c12b9320e702a9ce243193494554
SHA1

28181880164f5f73c611126dee950af8036e9988
SHA256

6e22c0f2732195063cb4984c6520c3b85e1236e967f8bb05b3c1b35139d2917b
SHA512

4714222f820c54a564d58607ade523699a5aa5f0200da7b7d7dcf6fd5b35635ff63592a1e7804c3360aa164733ebd677711dd33c4af8093e8d2eba7c61177d8a
SSDEEP

196608:Fv1W8cKlJIszteRKn1chTDQfW7ancKlJIszteRKn1chTDQfWg:Fv1W8v1Bee1chTseenv1Bee1chTseg

Score

10^/10

stealc vidar discovery spyware stealer

Malware Config

Signatures

Detect Vidar Stealer 1 IoCs

stealer

Processes:

resource	yara_rule
behavioral2/memory/2620-2-0x0000000002140000-0x0000000002178000-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
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

file.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation file.exe
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.

Query Registry
T1012

System Information Discovery
T1082

Processes:

file.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString file.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

2820 timeout.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

file.exe

pid process

2620 file.exe
2620 file.exe
2620 file.exe
2620 file.exe
2620 file.exe
2620 file.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	file.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	file.exe

pid	process
2820	timeout.exe

pid	process
2620	file.exe
2620	file.exe
2620	file.exe
2620	file.exe
2620	file.exe
2620	file.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

file.execmd.exe

description	pid	process	target process
PID 2620 wrote to memory of 5028	2620	file.exe	cmd.exe
PID 2620 wrote to memory of 5028	2620	file.exe	cmd.exe
PID 2620 wrote to memory of 5028	2620	file.exe	cmd.exe
PID 5028 wrote to memory of 2820	5028	cmd.exe	timeout.exe
PID 5028 wrote to memory of 2820	5028	cmd.exe	timeout.exe
PID 5028 wrote to memory of 2820	5028	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Checks computer location settings
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2620
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\EGIIJDHCGCBK" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5028
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 10
    3⤵
    - Delays execution with timeout.exe
    PID:2820

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2620-0-0x0000000002140000-0x0000000002178000-memory.dmp

Filesize
224KB

Download
memory/2620-2-0x0000000002140000-0x0000000002178000-memory.dmp

Filesize
224KB

Download
memory/2620-7-0x0000000010000000-0x000000001025F000-memory.dmp

Filesize
2.4MB

Download