stealc | dc16cf627f763c2d7eee33f6fba1875df77411b37b068f44b8780433cb518a90

Analysis

max time kernel
8s
max time network
122s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
07/06/2024, 01:59

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
dc16cf627f763c2d7eee33f6fba1875df77411b37b068f44b8780433cb518a90.exe
Size 2.4MB
Sample240607-celj8agh48
SHA256 dc16cf627f763c2d7eee33f6fba1875df77411b37b068f44b8780433cb518a90
MD5 2818253c0be221f860fad05ceb92b634
SHA1 7bd0c6fcfd80b793c176d1efcb4e494d044dbc36
SHA512 80a708372a7282f26367f753fe5d8390dc2f0c8c6e739e041299ac1f286f9c005e6661df0cffe2c73db0f618289b7d635ace845e39579eb01f83b290ec584f4d
SSDEEP 49152:wQc81KnB/a/hNT/d1Ya8aesY3Ot4N7G/:wDta/hNT/d1n0etD/
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

stealc vidar stealer

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

https://t.me/ta904ek
https://steamcommunity.com/profiles/76561199695752269

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

resource	yara_rule
behavioral1/memory/3048-2-0x00000000032D0000-0x000000000341C000-memory.dmp	family_vidar_v7
behavioral1/memory/2364-24-0x0000000000400000-0x0000000000649000-memory.dmp	family_vidar_v7
behavioral1/memory/2364-22-0x0000000000400000-0x0000000000649000-memory.dmp	family_vidar_v7
behavioral1/memory/2364-19-0x0000000000400000-0x0000000000649000-memory.dmp	family_vidar_v7
behavioral1/memory/2364-17-0x0000000000400000-0x0000000000649000-memory.dmp	family_vidar_v7
behavioral1/memory/2364-15-0x0000000000400000-0x0000000000649000-memory.dmp	family_vidar_v7
behavioral1/memory/2364-172-0x0000000000400000-0x0000000000649000-memory.dmp	family_vidar_v7
behavioral1/memory/2364-226-0x0000000000400000-0x0000000000649000-memory.dmp	family_vidar_v7
behavioral1/memory/2364-250-0x0000000000400000-0x0000000000649000-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

Executes dropped EXE 1 IoCs

pid	Process
2364	kat201E.tmp

Loads dropped DLL 2 IoCs

pid	Process
3048	dc16cf627f763c2d7eee33f6fba1875df77411b37b068f44b8780433cb518a90.exe
3048	dc16cf627f763c2d7eee33f6fba1875df77411b37b068f44b8780433cb518a90.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3048 set thread context of 2364	3048	dc16cf627f763c2d7eee33f6fba1875df77411b37b068f44b8780433cb518a90.exe	28

Modifies system certificate store 2 TTPs 3 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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	kat201E.tmp
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25	kat201E.tmp
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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	kat201E.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3048 wrote to memory of 2364	3048	dc16cf627f763c2d7eee33f6fba1875df77411b37b068f44b8780433cb518a90.exe	28
PID 3048 wrote to memory of 2364	3048	dc16cf627f763c2d7eee33f6fba1875df77411b37b068f44b8780433cb518a90.exe	28
PID 3048 wrote to memory of 2364	3048	dc16cf627f763c2d7eee33f6fba1875df77411b37b068f44b8780433cb518a90.exe	28
PID 3048 wrote to memory of 2364	3048	dc16cf627f763c2d7eee33f6fba1875df77411b37b068f44b8780433cb518a90.exe	28
PID 3048 wrote to memory of 2364	3048	dc16cf627f763c2d7eee33f6fba1875df77411b37b068f44b8780433cb518a90.exe	28
PID 3048 wrote to memory of 2364	3048	dc16cf627f763c2d7eee33f6fba1875df77411b37b068f44b8780433cb518a90.exe	28
PID 3048 wrote to memory of 2364	3048	dc16cf627f763c2d7eee33f6fba1875df77411b37b068f44b8780433cb518a90.exe	28
PID 3048 wrote to memory of 2364	3048	dc16cf627f763c2d7eee33f6fba1875df77411b37b068f44b8780433cb518a90.exe	28
PID 3048 wrote to memory of 2364	3048	dc16cf627f763c2d7eee33f6fba1875df77411b37b068f44b8780433cb518a90.exe	28

C:\Users\Admin\AppData\Local\Temp\dc16cf627f763c2d7eee33f6fba1875df77411b37b068f44b8780433cb518a90.exe
"C:\Users\Admin\AppData\Local\Temp\dc16cf627f763c2d7eee33f6fba1875df77411b37b068f44b8780433cb518a90.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3048
- C:\Users\Admin\AppData\Local\Temp\kat201E.tmp
  C:\Users\Admin\AppData\Local\Temp\kat201E.tmp
  2⤵
  - Executes dropped EXE
  - Modifies system certificate store
  PID:2364

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Subvert Trust Controls

T1553

Install Root Certificate

T1553.004

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

94308059B57B3142E455B38A6EB92015

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
Size 70KB
SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
MD5 49aebf8cbd62d92ac215b2923fb1b9f5
SHA1 1723be06719828dda65ad804298d0431f6aff976
SHA512 bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
SSDEEP 1536:gc257bHnClJ3v5mnAQEBP+bfnW8Ctl8G1G4eu76NWDdB34w18R5cBWcJAm68+Q:gp2ld5jPqW8LgeulxB3fgcEfDQ
MD5 SHA1 SHA512 SSDEEP

Submit Download

94308059B57B3142E455B38A6EB92015

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Size 342B
SHA256 9f79ba054342c291ab29441d9479cd2f9d95f786db7a4ad42e645a3d4baafa7e
MD5 e006c2b5d445943376b98167d456ce06
SHA1 6914595dd0e58ca561de5124ee7520556fe8541d
SHA512 0131eb7d52c6ad400d0a597344a9471d9f1529cc78593ac186d5ca46af97eddd88ad92d68277ea651c55a4a97c7515f7e2253e7a4a1db2e9ed99c8b344a6a0a6
MD5 SHA1 SHA512

Submit Download

Tar25DF.tmp

Path C:\Users\Admin\AppData\Local\Temp\Tar25DF.tmp
Size 181KB
SHA256 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
MD5 4ea6026cf93ec6338144661bf1202cd1
SHA1 a1dec9044f750ad887935a01430bf49322fbdcb7
SHA512 6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b
SSDEEP 1536:aAZw/J+lCUsTRvsqgCyqWlUDNWdm1wpSru2A0XwjY/z02DTr3rmt6mZ:as2J+qTR0XCy/dmASru2AijbdG
MD5 SHA1 SHA512 SSDEEP

Submit Download

kat201E.tmp

Path C:\Users\Admin\AppData\Local\Temp\kat201E.tmp
Size 861KB
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
SSDEEP 24576:o0ESdQpglO1CxDyawn27h+9hrlgKQY9SGcZwCdTp:o0RIglO1CuL9VNcaCd9
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2364-11-0x0000000000400000-0x0000000000649000-memory.dmp

Download

memory/2364-9-0x0000000000400000-0x0000000000649000-memory.dmp

Download

memory/2364-19-0x0000000000400000-0x0000000000649000-memory.dmp

Download

memory/2364-17-0x0000000000400000-0x0000000000649000-memory.dmp

Download

memory/2364-15-0x0000000000400000-0x0000000000649000-memory.dmp

Download

memory/2364-13-0x0000000000400000-0x0000000000649000-memory.dmp

Download

memory/2364-250-0x0000000000400000-0x0000000000649000-memory.dmp

Download

memory/2364-22-0x0000000000400000-0x0000000000649000-memory.dmp

Download

memory/2364-226-0x0000000000400000-0x0000000000649000-memory.dmp

Download

memory/2364-24-0x0000000000400000-0x0000000000649000-memory.dmp

Download

memory/2364-215-0x0000000014640000-0x000000001489F000-memory.dmp

Download

memory/2364-172-0x0000000000400000-0x0000000000649000-memory.dmp

Download

memory/2364-193-0x0000000000400000-0x0000000000649000-memory.dmp

Download

memory/3048-2-0x00000000032D0000-0x000000000341C000-memory.dmp

Download

memory/3048-23-0x0000000000400000-0x0000000000663000-memory.dmp

Download

memory/3048-0-0x0000000000220000-0x0000000000221000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads