stealc | 9ed3b32cf32133e2d698b17fc0dfefddc6a3e68edb70a052a5fe5c1bc7491aa9

General

Target

0afb52048ad8675d1446589f2ca050a0_NeikiAnalytics.exe
Size

2.4MB
MD5

0afb52048ad8675d1446589f2ca050a0
SHA1

2cf4d80837c5f45069086ab322418426a6b9a51d
SHA256

9ed3b32cf32133e2d698b17fc0dfefddc6a3e68edb70a052a5fe5c1bc7491aa9
SHA512

7a69d35322cdfbb1b89eb7afb5622e35915f446fb37b77a53d26856020b312d144663a71c6788b523f4650a26824c8e888d41aa541e0db01d188cef78108bde1
SSDEEP

24576:Pm/Sj801I+zd34OOtWqv3ciWmxMg4w1v8QWgW2pNX0fqk27NoFo3t4aO78KLHidC:u/SQARUt/SyV8QC2jiqkumct498KLHi

Score

10^/10

stealc vidar discovery spyware stealer

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://steamcommunity.com/profiles/76561199686524322

https://t.me/k0mono

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4.1 Safari/605.1.15 Ddg/17.4.1

Signatures

Detect Vidar Stealer 10 IoCs

stealer

Processes:

resource	yara_rule
behavioral2/memory/4768-3-0x0000000004080000-0x00000000041E3000-memory.dmp	family_vidar_v7
behavioral2/memory/4432-8-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4432-9-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4432-4-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4432-17-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4432-30-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4432-31-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4432-48-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4432-64-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4432-65-0x0000000000400000-0x0000000000646000-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:

kat5D72.tmp

pid process

4432 kat5D72.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:

0afb52048ad8675d1446589f2ca050a0_NeikiAnalytics.exe

description pid process target process

PID 4768 set thread context of 4432 4768 0afb52048ad8675d1446589f2ca050a0_NeikiAnalytics.exe kat5D72.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:

kat5D72.tmp

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat5D72.tmp
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

kat5D72.tmp

pid process

4432 kat5D72.tmp
4432 kat5D72.tmp

pid	process
4432	kat5D72.tmp

description	pid	process	target process
PID 4768 set thread context of 4432	4768	0afb52048ad8675d1446589f2ca050a0_NeikiAnalytics.exe	kat5D72.tmp

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	kat5D72.tmp

pid	process
4432	kat5D72.tmp
4432	kat5D72.tmp

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

0afb52048ad8675d1446589f2ca050a0_NeikiAnalytics.exe

description	pid	process	target process
PID 4768 wrote to memory of 4432	4768	0afb52048ad8675d1446589f2ca050a0_NeikiAnalytics.exe	kat5D72.tmp
PID 4768 wrote to memory of 4432	4768	0afb52048ad8675d1446589f2ca050a0_NeikiAnalytics.exe	kat5D72.tmp
PID 4768 wrote to memory of 4432	4768	0afb52048ad8675d1446589f2ca050a0_NeikiAnalytics.exe	kat5D72.tmp
PID 4768 wrote to memory of 4432	4768	0afb52048ad8675d1446589f2ca050a0_NeikiAnalytics.exe	kat5D72.tmp
PID 4768 wrote to memory of 4432	4768	0afb52048ad8675d1446589f2ca050a0_NeikiAnalytics.exe	kat5D72.tmp
PID 4768 wrote to memory of 4432	4768	0afb52048ad8675d1446589f2ca050a0_NeikiAnalytics.exe	kat5D72.tmp
PID 4768 wrote to memory of 4432	4768	0afb52048ad8675d1446589f2ca050a0_NeikiAnalytics.exe	kat5D72.tmp
PID 4768 wrote to memory of 4432	4768	0afb52048ad8675d1446589f2ca050a0_NeikiAnalytics.exe	kat5D72.tmp

C:\Users\Admin\AppData\Local\Temp\0afb52048ad8675d1446589f2ca050a0_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\0afb52048ad8675d1446589f2ca050a0_NeikiAnalytics.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4768

C:\Users\Admin\AppData\Local\Temp\kat5D72.tmp
C:\Users\Admin\AppData\Local\Temp\kat5D72.tmp
2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4432

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\kat5D72.tmp
Filesize
861KB

MD5
66064dbdb70a5eb15ebf3bf65aba254b

SHA1
0284fd320f99f62aca800fb1251eff4c31ec4ed7

SHA256
6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

SHA512
b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

Download Submit
memory/4432-4-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4432-8-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4432-9-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4432-17-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4432-30-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4432-31-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4432-33-0x000000001B780000-0x000000001B9DF000-memory.dmp

Filesize
2.4MB

Download
memory/4432-48-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4432-64-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4432-65-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4768-3-0x0000000004080000-0x00000000041E3000-memory.dmp

Filesize
1.4MB

Download
memory/4768-10-0x0000000000400000-0x0000000000661000-memory.dmp

Filesize
2.4MB

Download
memory/4768-0-0x00000000023A0000-0x00000000023A1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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