stealc | e030ea37222d81d1708ab9095161722c2a20d1a08388724cdab7ac146be916fe

General

Target

e030ea37222d81d1708ab9095161722c2a20d1a08388724cdab7ac146be916fe.exe
Size

2.0MB
MD5

1ec5a53eaaf0fe9f899e81db45610890
SHA1

eb32d03bdf7ae2718357379cceaa17c1a941ef1c
SHA256

e030ea37222d81d1708ab9095161722c2a20d1a08388724cdab7ac146be916fe
SHA512

bdf81420b06562a709937b767178b3a011e2ffbbda7e79054b20d994b22a57ecdcabc69cc3f07b4a1b91ed90a2dff453943ef544087b03f75b9d8e44ae916e07
SSDEEP

49152:7QzHt472DSJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHtotIuoITsdZ

Score

10^/10

stealc vidar discovery spyware stealer

Malware Config

Extracted

Family

stealc

rc4.plain

Signatures

Detect Vidar Stealer 8 IoCs

stealer

Processes:

resource	yara_rule
behavioral2/memory/3468-1-0x0000000004290000-0x00000000043D9000-memory.dmp	family_vidar_v7
behavioral2/memory/3404-4-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/3404-8-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/3404-10-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/3404-16-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/3404-17-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/3404-34-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/3404-35-0x0000000000400000-0x0000000000646000-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

Processes:

kat4249.tmp

pid process

3404 kat4249.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

pid	process
3404	kat4249.tmp

Suspicious use of SetThreadContext 1 IoCs

Processes:

e030ea37222d81d1708ab9095161722c2a20d1a08388724cdab7ac146be916fe.exe

description	pid	process	target process
PID 3468 set thread context of 3404	3468	e030ea37222d81d1708ab9095161722c2a20d1a08388724cdab7ac146be916fe.exe	kat4249.tmp

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:

kat4249.tmp

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat4249.tmp
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

kat4249.tmp

pid process

3404 kat4249.tmp
3404 kat4249.tmp

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	kat4249.tmp

pid	process
3404	kat4249.tmp
3404	kat4249.tmp

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

e030ea37222d81d1708ab9095161722c2a20d1a08388724cdab7ac146be916fe.exe

description	pid	process	target process
PID 3468 wrote to memory of 3404	3468	e030ea37222d81d1708ab9095161722c2a20d1a08388724cdab7ac146be916fe.exe	kat4249.tmp
PID 3468 wrote to memory of 3404	3468	e030ea37222d81d1708ab9095161722c2a20d1a08388724cdab7ac146be916fe.exe	kat4249.tmp
PID 3468 wrote to memory of 3404	3468	e030ea37222d81d1708ab9095161722c2a20d1a08388724cdab7ac146be916fe.exe	kat4249.tmp
PID 3468 wrote to memory of 3404	3468	e030ea37222d81d1708ab9095161722c2a20d1a08388724cdab7ac146be916fe.exe	kat4249.tmp
PID 3468 wrote to memory of 3404	3468	e030ea37222d81d1708ab9095161722c2a20d1a08388724cdab7ac146be916fe.exe	kat4249.tmp
PID 3468 wrote to memory of 3404	3468	e030ea37222d81d1708ab9095161722c2a20d1a08388724cdab7ac146be916fe.exe	kat4249.tmp
PID 3468 wrote to memory of 3404	3468	e030ea37222d81d1708ab9095161722c2a20d1a08388724cdab7ac146be916fe.exe	kat4249.tmp
PID 3468 wrote to memory of 3404	3468	e030ea37222d81d1708ab9095161722c2a20d1a08388724cdab7ac146be916fe.exe	kat4249.tmp

C:\Users\Admin\AppData\Local\Temp\e030ea37222d81d1708ab9095161722c2a20d1a08388724cdab7ac146be916fe.exe
"C:\Users\Admin\AppData\Local\Temp\e030ea37222d81d1708ab9095161722c2a20d1a08388724cdab7ac146be916fe.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3468

C:\Users\Admin\AppData\Local\Temp\kat4249.tmp
C:\Users\Admin\AppData\Local\Temp\kat4249.tmp
2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3404

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

2

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\kat4249.tmp
Filesize
861KB

MD5
66064dbdb70a5eb15ebf3bf65aba254b

SHA1
0284fd320f99f62aca800fb1251eff4c31ec4ed7

SHA256
6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

SHA512
b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

Download Submit
memory/3404-4-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/3404-8-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/3404-10-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/3404-16-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/3404-17-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/3404-19-0x0000000019410000-0x000000001966F000-memory.dmp

Filesize
2.4MB

Download
memory/3404-34-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/3404-35-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/3468-0-0x00000000025A0000-0x00000000025A1000-memory.dmp

Filesize
4KB

Download
memory/3468-1-0x0000000004290000-0x00000000043D9000-memory.dmp

Filesize
1.3MB

Download
memory/3468-9-0x0000000000400000-0x0000000000601000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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