stealc | b5bb0722c59a5dc74204c55bc8eeb1a3b70bd6422a6e44485770c0cb159d8d8f

General

Target

933c2f83027822fa393730675bb57710_NeikiAnalytics.exe
Size

2.0MB
MD5

933c2f83027822fa393730675bb57710
SHA1

bc2af8503aa395569b34daa0ed241c3141866fdb
SHA256

b5bb0722c59a5dc74204c55bc8eeb1a3b70bd6422a6e44485770c0cb159d8d8f
SHA512

af22f6ee61b94ff895b202787a90f387792ed3bc5092a26d0ae23a4ef4bf0ab91de377498a46860986a46729c1c165ca764185f8a5e85b6e7cb534d0188c63d8
SSDEEP

49152:IFno/jf4JtTF+TxMoxc1TU+j+dAzGkiT:IFno/jwtIuoITsdZT

Score

10^/10

stealc vidar discovery spyware stealer

Malware Config

Extracted

Family

stealc

rc4.plain

Signatures

Detect Vidar Stealer 10 IoCs

stealer

Processes:

resource	yara_rule
behavioral2/memory/3492-2-0x0000000004050000-0x0000000004199000-memory.dmp	family_vidar_v7
behavioral2/memory/4020-4-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4020-9-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4020-10-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4020-14-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4020-15-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4020-16-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4020-33-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4020-49-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4020-51-0x0000000000400000-0x0000000000646000-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:

kat3D09.tmp

pid process

4020 kat3D09.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

Processes:

933c2f83027822fa393730675bb57710_NeikiAnalytics.exe

description pid process target process

PID 3492 set thread context of 4020 3492 933c2f83027822fa393730675bb57710_NeikiAnalytics.exe kat3D09.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:

kat3D09.tmp

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat3D09.tmp
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

kat3D09.tmp

pid process

4020 kat3D09.tmp
4020 kat3D09.tmp

pid	process
4020	kat3D09.tmp

description	pid	process	target process
PID 3492 set thread context of 4020	3492	933c2f83027822fa393730675bb57710_NeikiAnalytics.exe	kat3D09.tmp

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	kat3D09.tmp

pid	process
4020	kat3D09.tmp
4020	kat3D09.tmp

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

933c2f83027822fa393730675bb57710_NeikiAnalytics.exe

description	pid	process	target process
PID 3492 wrote to memory of 4020	3492	933c2f83027822fa393730675bb57710_NeikiAnalytics.exe	kat3D09.tmp
PID 3492 wrote to memory of 4020	3492	933c2f83027822fa393730675bb57710_NeikiAnalytics.exe	kat3D09.tmp
PID 3492 wrote to memory of 4020	3492	933c2f83027822fa393730675bb57710_NeikiAnalytics.exe	kat3D09.tmp
PID 3492 wrote to memory of 4020	3492	933c2f83027822fa393730675bb57710_NeikiAnalytics.exe	kat3D09.tmp
PID 3492 wrote to memory of 4020	3492	933c2f83027822fa393730675bb57710_NeikiAnalytics.exe	kat3D09.tmp
PID 3492 wrote to memory of 4020	3492	933c2f83027822fa393730675bb57710_NeikiAnalytics.exe	kat3D09.tmp
PID 3492 wrote to memory of 4020	3492	933c2f83027822fa393730675bb57710_NeikiAnalytics.exe	kat3D09.tmp
PID 3492 wrote to memory of 4020	3492	933c2f83027822fa393730675bb57710_NeikiAnalytics.exe	kat3D09.tmp

C:\Users\Admin\AppData\Local\Temp\933c2f83027822fa393730675bb57710_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\933c2f83027822fa393730675bb57710_NeikiAnalytics.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3492
- C:\Users\Admin\AppData\Local\Temp\kat3D09.tmp
  C:\Users\Admin\AppData\Local\Temp\kat3D09.tmp
  2⤵
  - Executes dropped EXE
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:4020

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\kat3D09.tmp

Filesize
861KB

MD5
66064dbdb70a5eb15ebf3bf65aba254b

SHA1
0284fd320f99f62aca800fb1251eff4c31ec4ed7

SHA256
6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

SHA512
b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

Download Submit
memory/3492-6-0x0000000000400000-0x0000000000602000-memory.dmp

Filesize
2.0MB

Download
memory/3492-2-0x0000000004050000-0x0000000004199000-memory.dmp

Filesize
1.3MB

Download
memory/3492-0-0x0000000000790000-0x0000000000791000-memory.dmp

Filesize
4KB

Download
memory/4020-10-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4020-9-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4020-4-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4020-14-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4020-15-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4020-16-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4020-18-0x000000001B720000-0x000000001B97F000-memory.dmp

Filesize
2.4MB

Download
memory/4020-33-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4020-49-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4020-51-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download

Analysis

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