stealc | cec01eedf410a6ac0cdd3cf0a376492b3ed7a6ff6a32826eee8137dc9cb2cac0

General

Target

4ac01e4741b77e1119f9f861683b1940_NeikiAnalytics.exe
Size

2.0MB
MD5

4ac01e4741b77e1119f9f861683b1940
SHA1

de37f40625aba41b267cc46fa07ebd0cbbd2f2c8
SHA256

cec01eedf410a6ac0cdd3cf0a376492b3ed7a6ff6a32826eee8137dc9cb2cac0
SHA512

c9f8823b32c42cef7a30e0b477b5daa47c07620ef99e71f98204a196883ce69d2fd5be1f3314b723dd1fd374fcf77a856ebb50c776fd13d531088cfc49b181b5
SSDEEP

49152:IFno/jfYJtTF+TxMoxc1TU+j+dAzGkiT:IFno/jQtIuoITsdZT

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 9 IoCs

stealer

Processes:

resource	yara_rule
behavioral2/memory/1180-1-0x0000000004030000-0x0000000004179000-memory.dmp	family_vidar_v7
behavioral2/memory/4280-4-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4280-10-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4280-9-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4280-12-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4280-16-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4280-17-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4280-34-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/4280-35-0x0000000000400000-0x0000000000646000-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:

kat4B13.tmp

pid process

4280 kat4B13.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:

4ac01e4741b77e1119f9f861683b1940_NeikiAnalytics.exe

description pid process target process

PID 1180 set thread context of 4280 1180 4ac01e4741b77e1119f9f861683b1940_NeikiAnalytics.exe kat4B13.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:

kat4B13.tmp

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat4B13.tmp
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

kat4B13.tmp

pid process

4280 kat4B13.tmp
4280 kat4B13.tmp

pid	process
4280	kat4B13.tmp

description	pid	process	target process
PID 1180 set thread context of 4280	1180	4ac01e4741b77e1119f9f861683b1940_NeikiAnalytics.exe	kat4B13.tmp

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	kat4B13.tmp

pid	process
4280	kat4B13.tmp
4280	kat4B13.tmp

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

4ac01e4741b77e1119f9f861683b1940_NeikiAnalytics.exe

description	pid	process	target process
PID 1180 wrote to memory of 4280	1180	4ac01e4741b77e1119f9f861683b1940_NeikiAnalytics.exe	kat4B13.tmp
PID 1180 wrote to memory of 4280	1180	4ac01e4741b77e1119f9f861683b1940_NeikiAnalytics.exe	kat4B13.tmp
PID 1180 wrote to memory of 4280	1180	4ac01e4741b77e1119f9f861683b1940_NeikiAnalytics.exe	kat4B13.tmp
PID 1180 wrote to memory of 4280	1180	4ac01e4741b77e1119f9f861683b1940_NeikiAnalytics.exe	kat4B13.tmp
PID 1180 wrote to memory of 4280	1180	4ac01e4741b77e1119f9f861683b1940_NeikiAnalytics.exe	kat4B13.tmp
PID 1180 wrote to memory of 4280	1180	4ac01e4741b77e1119f9f861683b1940_NeikiAnalytics.exe	kat4B13.tmp
PID 1180 wrote to memory of 4280	1180	4ac01e4741b77e1119f9f861683b1940_NeikiAnalytics.exe	kat4B13.tmp
PID 1180 wrote to memory of 4280	1180	4ac01e4741b77e1119f9f861683b1940_NeikiAnalytics.exe	kat4B13.tmp

C:\Users\Admin\AppData\Local\Temp\4ac01e4741b77e1119f9f861683b1940_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\4ac01e4741b77e1119f9f861683b1940_NeikiAnalytics.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1180

C:\Users\Admin\AppData\Local\Temp\kat4B13.tmp
C:\Users\Admin\AppData\Local\Temp\kat4B13.tmp
2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4280

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\kat4B13.tmp
Filesize
861KB

MD5
66064dbdb70a5eb15ebf3bf65aba254b

SHA1
0284fd320f99f62aca800fb1251eff4c31ec4ed7

SHA256
6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

SHA512
b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

Download Submit
memory/1180-8-0x0000000000400000-0x0000000000602000-memory.dmp

Filesize
2.0MB

Download
memory/1180-1-0x0000000004030000-0x0000000004179000-memory.dmp

Filesize
1.3MB

Download
memory/1180-0-0x00000000008D0000-0x00000000008D1000-memory.dmp

Filesize
4KB

Download
memory/4280-4-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4280-10-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4280-9-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4280-12-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4280-16-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4280-17-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4280-19-0x000000001B7C0000-0x000000001BA1F000-memory.dmp

Filesize
2.4MB

Download
memory/4280-34-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4280-35-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads