stealc | 2935afc6b4db2e7e45ad83caee8c62681602f2735c984f865fbf1c441c29df91

General

Target

850c11992320017ab491276d6b4622d0_NeikiAnalytics.exe
Size

2.0MB
MD5

850c11992320017ab491276d6b4622d0
SHA1

6d312d0cf308a47a480fb341b86186634f8555cc
SHA256

2935afc6b4db2e7e45ad83caee8c62681602f2735c984f865fbf1c441c29df91
SHA512

0e01bd9911cfc0a1877c87f880175948dc2367af71fdc44c26880c574be0f0c752ccfa9121f701d96acd29517d098dc436400a9894d6f4f21200349deffb9a20
SSDEEP

49152:7QzHt472DMJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHtWtIuoITsdZ

Score

10^/10

stealc vidar discovery spyware stealer

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://steamcommunity.com/profiles/76561199689717899

https://t.me/copterwin

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Signatures

Detect Vidar Stealer 9 IoCs

stealer

Processes:

resource	yara_rule
behavioral2/memory/3304-2-0x0000000004190000-0x00000000042D9000-memory.dmp	family_vidar_v7
behavioral2/memory/884-5-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/884-10-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/884-11-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/884-15-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/884-16-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/884-17-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/884-34-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/884-35-0x0000000000400000-0x0000000000646000-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:

kat3042.tmp

pid process

884 kat3042.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:

850c11992320017ab491276d6b4622d0_NeikiAnalytics.exe

description pid process target process

PID 3304 set thread context of 884 3304 850c11992320017ab491276d6b4622d0_NeikiAnalytics.exe kat3042.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:

kat3042.tmp

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat3042.tmp
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

kat3042.tmp

pid process

884 kat3042.tmp
884 kat3042.tmp

pid	process
884	kat3042.tmp

description	pid	process	target process
PID 3304 set thread context of 884	3304	850c11992320017ab491276d6b4622d0_NeikiAnalytics.exe	kat3042.tmp

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	kat3042.tmp

pid	process
884	kat3042.tmp
884	kat3042.tmp

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

850c11992320017ab491276d6b4622d0_NeikiAnalytics.exe

description	pid	process	target process
PID 3304 wrote to memory of 884	3304	850c11992320017ab491276d6b4622d0_NeikiAnalytics.exe	kat3042.tmp
PID 3304 wrote to memory of 884	3304	850c11992320017ab491276d6b4622d0_NeikiAnalytics.exe	kat3042.tmp
PID 3304 wrote to memory of 884	3304	850c11992320017ab491276d6b4622d0_NeikiAnalytics.exe	kat3042.tmp
PID 3304 wrote to memory of 884	3304	850c11992320017ab491276d6b4622d0_NeikiAnalytics.exe	kat3042.tmp
PID 3304 wrote to memory of 884	3304	850c11992320017ab491276d6b4622d0_NeikiAnalytics.exe	kat3042.tmp
PID 3304 wrote to memory of 884	3304	850c11992320017ab491276d6b4622d0_NeikiAnalytics.exe	kat3042.tmp
PID 3304 wrote to memory of 884	3304	850c11992320017ab491276d6b4622d0_NeikiAnalytics.exe	kat3042.tmp
PID 3304 wrote to memory of 884	3304	850c11992320017ab491276d6b4622d0_NeikiAnalytics.exe	kat3042.tmp

C:\Users\Admin\AppData\Local\Temp\850c11992320017ab491276d6b4622d0_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\850c11992320017ab491276d6b4622d0_NeikiAnalytics.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3304

C:\Users\Admin\AppData\Local\Temp\kat3042.tmp
C:\Users\Admin\AppData\Local\Temp\kat3042.tmp
2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:884

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3744 --field-trial-handle=3192,i,2785050981002401924,4037047756083432660,262144 --variations-seed-version /prefetch:8
1⤵
PID:1544

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\kat3042.tmp
Filesize
861KB

MD5
66064dbdb70a5eb15ebf3bf65aba254b

SHA1
0284fd320f99f62aca800fb1251eff4c31ec4ed7

SHA256
6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

SHA512
b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

Download Submit
memory/884-11-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/884-5-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/884-10-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/884-15-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/884-16-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/884-17-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/884-19-0x000000001B7C0000-0x000000001BA1F000-memory.dmp

Filesize
2.4MB

Download
memory/884-34-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/884-35-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/3304-2-0x0000000004190000-0x00000000042D9000-memory.dmp

Filesize
1.3MB

Download
memory/3304-1-0x0000000000400000-0x0000000000601000-memory.dmp

Filesize
2.0MB

Download
memory/3304-0-0x0000000000820000-0x0000000000821000-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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Downloads