stealc | f2414eb56b68628c10fbe5d76c7f54d75625add287bd6fcee6e23316575fe259

General

Target

Setup-v27.7.exe
Size

783.7MB
MD5

c5be22159dcc9229cec0c639cad9a475
SHA1

9c0752bef3e137f4d222e52926efda7fe472bbc0
SHA256

48530f667563a595c24f245c994484ca43c991cce4b77fd1dca8f7d486cbc389
SHA512

5e9c2a4f7264471619eb4e522df0064289e6e92db53fb83d3d48a9ed69bc225ce54491dcf9ae8f12dbd58cd248b1253fcf3fa4479d1796187de98d05d0a54c56
SSDEEP

196608:zt5BooB+Xac/OygqvMehWR//jqnlsyjgf+YE:VombygjK+/r++yj2

Score

10^/10

stealc vidar e72952d086695b8b7033dbc077134a28 discovery spyware stealer

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

Version

10.1

Botnet

e72952d086695b8b7033dbc077134a28

C2

http://77.221.158.54:80

https://t.me/vkdnawxjs

https://t.me/memve4erin

https://steamcommunity.com/profiles/76561199699680841

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0

Signatures

Detect Vidar Stealer 2 IoCs

stealer

resource	yara_rule
behavioral1/memory/4168-10-0x0000000000D90000-0x0000000001C3A000-memory.dmp	family_vidar_v7
behavioral1/memory/4168-72-0x0000000000D90000-0x0000000001C3A000-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

Loads dropped DLL 2 IoCs

pid	Process
4168	Setup-v27.7.exe
4168	Setup-v27.7.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Setup-v27.7.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3128	timeout.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4168	Setup-v27.7.exe
4168	Setup-v27.7.exe
4168	Setup-v27.7.exe
4168	Setup-v27.7.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4168 wrote to memory of 4992	4168	Setup-v27.7.exe	74
PID 4168 wrote to memory of 4992	4168	Setup-v27.7.exe	74
PID 4168 wrote to memory of 4992	4168	Setup-v27.7.exe	74
PID 4992 wrote to memory of 3128	4992	cmd.exe	76
PID 4992 wrote to memory of 3128	4992	cmd.exe	76
PID 4992 wrote to memory of 3128	4992	cmd.exe	76

C:\Users\Admin\AppData\Local\Temp\Setup-v27.7.exe
"C:\Users\Admin\AppData\Local\Temp\Setup-v27.7.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4168
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\FHCGCFHDHIII" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4992
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 10
    3⤵
    - Delays execution with timeout.exe
    PID:3128

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

4

T1552

Credentials In Files

4

T1552.001

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

4

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\FHCGCFHDHIII\VCRUNT~1.DLL

Filesize
78KB

MD5
a37ee36b536409056a86f50e67777dd7

SHA1
1cafa159292aa736fc595fc04e16325b27cd6750

SHA256
8934aaeb65b6e6d253dfe72dea5d65856bd871e989d5d3a2a35edfe867bb4825

SHA512
3a7c260646315cf8c01f44b2ec60974017496bd0d80dd055c7e43b707cadba2d63aab5e0efd435670aa77886ed86368390d42c4017fc433c3c4b9d1c47d0f356

Download Submit
C:\ProgramData\FHCGCFHDHIII\msvcp140.dll

Filesize
439KB

MD5
5ff1fca37c466d6723ec67be93b51442

SHA1
34cc4e158092083b13d67d6d2bc9e57b798a303b

SHA256
5136a49a682ac8d7f1ce71b211de8688fce42ed57210af087a8e2dbc8a934062

SHA512
4802ef62630c521d83a1d333969593fb00c9b38f82b4d07f70fbd21f495fea9b3f67676064573d2c71c42bc6f701992989742213501b16087bb6110e337c7546

Download Submit
C:\ProgramData\FHCGCFHDHIII\softokn3.dll

Filesize
251KB

MD5
4e52d739c324db8225bd9ab2695f262f

SHA1
71c3da43dc5a0d2a1941e874a6d015a071783889

SHA256
74ebbac956e519e16923abdc5ab8912098a4f64e38ddcb2eae23969f306afe5a

SHA512
2d4168a69082a9192b9248f7331bd806c260478ff817567df54f997d7c3c7d640776131355401e4bdb9744e246c36d658cb24b18de67d8f23f10066e5fe445f6

Download Submit
\ProgramData\FHCGCFHDHIII\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
\ProgramData\FHCGCFHDHIII\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
memory/4168-12-0x0000000024E30000-0x000000002508F000-memory.dmp

Filesize
2.4MB

Download
memory/4168-0-0x00000000009A0000-0x00000000009A1000-memory.dmp

Filesize
4KB

Download
memory/4168-10-0x0000000000D90000-0x0000000001C3A000-memory.dmp

Filesize
14.7MB

Download
memory/4168-7-0x0000000000FD2000-0x0000000001492000-memory.dmp

Filesize
4.8MB

Download
memory/4168-1-0x00000000009B0000-0x00000000009B1000-memory.dmp

Filesize
4KB

Download
memory/4168-2-0x00000000009E0000-0x00000000009E1000-memory.dmp

Filesize
4KB

Download
memory/4168-71-0x0000000000FD2000-0x0000000001492000-memory.dmp

Filesize
4.8MB

Download
memory/4168-72-0x0000000000D90000-0x0000000001C3A000-memory.dmp

Filesize
14.7MB

Download
memory/4168-3-0x00000000009F0000-0x00000000009F1000-memory.dmp

Filesize
4KB

Download
memory/4168-4-0x0000000000CD0000-0x0000000000CD1000-memory.dmp

Filesize
4KB

Download
memory/4168-5-0x0000000000CE0000-0x0000000000CE1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads