stealc | a196c14ae3a671eed1e664eeda46769128e7600bd0e4fac96beb9fecb789ea24

General

Target

a196c14ae3a671eed1e664eeda46769128e7600bd0e4fac96beb9fecb789ea24.exe
Size

1.8MB
MD5

d0430790be25ce4a3a45af0553a3d057
SHA1

b2150a6adc261868c0816d089c840d1a417fe8ef
SHA256

a196c14ae3a671eed1e664eeda46769128e7600bd0e4fac96beb9fecb789ea24
SHA512

940dead6a4f44a4fca8760dc62b054261799670091d81c8cd996d2515ea85b408cdf52a33b7b0dfe409ea8e1b6e9b605ed9d2a7d67cf15828d144ba68aad4e80
SSDEEP

24576:FBfuZfeq6sdO6hTdtTF+TxMoxQH1Tj4wtjYZH1DmoYYzi3WH45yv+OueSJhm9e:F7qFPJtTF+TxMoxc1TU+j+dAzGwlrh

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/960-1-0x0000000004070000-0x00000000041B9000-memory.dmp	family_vidar_v7
behavioral2/memory/4072-4-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4072-8-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4072-9-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4072-16-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4072-17-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4072-34-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4072-35-0x0000000000400000-0x0000000000646000-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:

kat730D.tmp

pid process

4072 kat730D.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
4072	kat730D.tmp

Suspicious use of SetThreadContext 1 IoCs

Processes:

a196c14ae3a671eed1e664eeda46769128e7600bd0e4fac96beb9fecb789ea24.exe

description	pid	process	target process
PID 960 set thread context of 4072	960	a196c14ae3a671eed1e664eeda46769128e7600bd0e4fac96beb9fecb789ea24.exe	kat730D.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:

kat730D.tmp

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat730D.tmp
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

kat730D.tmp

pid process

4072 kat730D.tmp
4072 kat730D.tmp

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	kat730D.tmp

pid	process
4072	kat730D.tmp
4072	kat730D.tmp

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

a196c14ae3a671eed1e664eeda46769128e7600bd0e4fac96beb9fecb789ea24.exe

description	pid	process	target process
PID 960 wrote to memory of 4072	960	a196c14ae3a671eed1e664eeda46769128e7600bd0e4fac96beb9fecb789ea24.exe	kat730D.tmp
PID 960 wrote to memory of 4072	960	a196c14ae3a671eed1e664eeda46769128e7600bd0e4fac96beb9fecb789ea24.exe	kat730D.tmp
PID 960 wrote to memory of 4072	960	a196c14ae3a671eed1e664eeda46769128e7600bd0e4fac96beb9fecb789ea24.exe	kat730D.tmp
PID 960 wrote to memory of 4072	960	a196c14ae3a671eed1e664eeda46769128e7600bd0e4fac96beb9fecb789ea24.exe	kat730D.tmp
PID 960 wrote to memory of 4072	960	a196c14ae3a671eed1e664eeda46769128e7600bd0e4fac96beb9fecb789ea24.exe	kat730D.tmp
PID 960 wrote to memory of 4072	960	a196c14ae3a671eed1e664eeda46769128e7600bd0e4fac96beb9fecb789ea24.exe	kat730D.tmp
PID 960 wrote to memory of 4072	960	a196c14ae3a671eed1e664eeda46769128e7600bd0e4fac96beb9fecb789ea24.exe	kat730D.tmp
PID 960 wrote to memory of 4072	960	a196c14ae3a671eed1e664eeda46769128e7600bd0e4fac96beb9fecb789ea24.exe	kat730D.tmp

C:\Users\Admin\AppData\Local\Temp\a196c14ae3a671eed1e664eeda46769128e7600bd0e4fac96beb9fecb789ea24.exe
"C:\Users\Admin\AppData\Local\Temp\a196c14ae3a671eed1e664eeda46769128e7600bd0e4fac96beb9fecb789ea24.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:960
- C:\Users\Admin\AppData\Local\Temp\kat730D.tmp
  C:\Users\Admin\AppData\Local\Temp\kat730D.tmp
  2⤵
  - Executes dropped EXE
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:4072

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\kat730D.tmp

Filesize
861KB

MD5
66064dbdb70a5eb15ebf3bf65aba254b

SHA1
0284fd320f99f62aca800fb1251eff4c31ec4ed7

SHA256
6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

SHA512
b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

Download Submit
memory/960-0-0x0000000002430000-0x0000000002431000-memory.dmp

Filesize
4KB

Download
memory/960-1-0x0000000004070000-0x00000000041B9000-memory.dmp

Filesize
1.3MB

Download
memory/960-10-0x0000000000400000-0x00000000005D1000-memory.dmp

Filesize
1.8MB

Download
memory/4072-4-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4072-8-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4072-9-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4072-16-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4072-17-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4072-19-0x000000001B830000-0x000000001BA8F000-memory.dmp

Filesize
2.4MB

Download
memory/4072-34-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4072-35-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads