stealc | 2867e0e869db5b5f3e15fb7c9745412d4466a5dc4611a1bedc87fdc4eab96e2b

General

Target

2867e0e869db5b5f3e15fb7c9745412d4466a5dc4611a1bedc87fdc4eab96e2b.exe
Size

2.0MB
MD5

143df55ba94e448b3ffec049c1317e9b
SHA1

d3df8eeabba64e052d59158e1ce569fef09441e9
SHA256

2867e0e869db5b5f3e15fb7c9745412d4466a5dc4611a1bedc87fdc4eab96e2b
SHA512

1012cff88f96b0892fe7a4c15e069f6f50e4b1a73bc0a07bb5837f6513135c8ab77a3f6b4f10f0b91a42f382793beff7f805ad81b8f7c26204b20982fbc67a04
SSDEEP

49152:s4K3x1vUuJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18utIuoITsdZ

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 8 IoCs

stealer

Processes:

resource	yara_rule
behavioral1/memory/4768-2-0x0000000004050000-0x0000000004199000-memory.dmp	family_vidar_v7
behavioral1/memory/772-4-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral1/memory/772-8-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral1/memory/772-9-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral1/memory/772-14-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral1/memory/772-15-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral1/memory/772-32-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral1/memory/772-33-0x0000000000400000-0x0000000000646000-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:

kat564E.tmp

pid process

772 kat564E.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
772	kat564E.tmp

Suspicious use of SetThreadContext 1 IoCs

Processes:

2867e0e869db5b5f3e15fb7c9745412d4466a5dc4611a1bedc87fdc4eab96e2b.exe

description	pid	process	target process
PID 4768 set thread context of 772	4768	2867e0e869db5b5f3e15fb7c9745412d4466a5dc4611a1bedc87fdc4eab96e2b.exe	kat564E.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:

kat564E.tmp

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat564E.tmp
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

kat564E.tmp

pid process

772 kat564E.tmp
772 kat564E.tmp

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	kat564E.tmp

pid	process
772	kat564E.tmp
772	kat564E.tmp

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

2867e0e869db5b5f3e15fb7c9745412d4466a5dc4611a1bedc87fdc4eab96e2b.exe

description	pid	process	target process
PID 4768 wrote to memory of 772	4768	2867e0e869db5b5f3e15fb7c9745412d4466a5dc4611a1bedc87fdc4eab96e2b.exe	kat564E.tmp
PID 4768 wrote to memory of 772	4768	2867e0e869db5b5f3e15fb7c9745412d4466a5dc4611a1bedc87fdc4eab96e2b.exe	kat564E.tmp
PID 4768 wrote to memory of 772	4768	2867e0e869db5b5f3e15fb7c9745412d4466a5dc4611a1bedc87fdc4eab96e2b.exe	kat564E.tmp
PID 4768 wrote to memory of 772	4768	2867e0e869db5b5f3e15fb7c9745412d4466a5dc4611a1bedc87fdc4eab96e2b.exe	kat564E.tmp
PID 4768 wrote to memory of 772	4768	2867e0e869db5b5f3e15fb7c9745412d4466a5dc4611a1bedc87fdc4eab96e2b.exe	kat564E.tmp
PID 4768 wrote to memory of 772	4768	2867e0e869db5b5f3e15fb7c9745412d4466a5dc4611a1bedc87fdc4eab96e2b.exe	kat564E.tmp
PID 4768 wrote to memory of 772	4768	2867e0e869db5b5f3e15fb7c9745412d4466a5dc4611a1bedc87fdc4eab96e2b.exe	kat564E.tmp
PID 4768 wrote to memory of 772	4768	2867e0e869db5b5f3e15fb7c9745412d4466a5dc4611a1bedc87fdc4eab96e2b.exe	kat564E.tmp

C:\Users\Admin\AppData\Local\Temp\2867e0e869db5b5f3e15fb7c9745412d4466a5dc4611a1bedc87fdc4eab96e2b.exe
"C:\Users\Admin\AppData\Local\Temp\2867e0e869db5b5f3e15fb7c9745412d4466a5dc4611a1bedc87fdc4eab96e2b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4768

C:\Users\Admin\AppData\Local\Temp\kat564E.tmp
C:\Users\Admin\AppData\Local\Temp\kat564E.tmp
2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:772

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\kat564E.tmp
Filesize
861KB

MD5
66064dbdb70a5eb15ebf3bf65aba254b

SHA1
0284fd320f99f62aca800fb1251eff4c31ec4ed7

SHA256
6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

SHA512
b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

Download Submit
memory/772-4-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/772-8-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/772-9-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/772-14-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/772-15-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/772-17-0x000000001B7F0000-0x000000001BA4F000-memory.dmp

Filesize
2.4MB

Download
memory/772-32-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/772-33-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/4768-0-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download
memory/4768-2-0x0000000004050000-0x0000000004199000-memory.dmp

Filesize
1.3MB

Download
memory/4768-10-0x0000000000400000-0x000000000060C000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads