stealc | afb30ae144216bb3c4904b68fa3b264916370cd8ab6a0728d39c0c91cad8c36a

Analysis

max time kernel
12s
max time network
128s
platform
windows7_x64
resource
win7-20240221-en
resource tags

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

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
afb30ae144216bb3c4904b68fa3b264916370cd8ab6a0728d39c0c91cad8c36a.exe
Size 1.8MB
Sample240607-bdf3nsfh27
SHA256 afb30ae144216bb3c4904b68fa3b264916370cd8ab6a0728d39c0c91cad8c36a
MD5 eed012f638324c6786092c8bcbe774f2
SHA1 583dddb05303b5403efa673277efed61233e3431
SHA512 259c6a5505900edc324ed2d007d518372503297078d878edaa72abe32839a64c38dc7a3bb9c4d237f7dcc28d2e4279f9ab91c239dfd84a336a0bee35ab8b92d6
SSDEEP 24576:l6z6AnPq5iak02HktYaOV+rEfv0xwT3zxNOt4XigDSCuptNIeUaKUqm1zE:wer5l4ktYa8aesY3Ot4N7G/IeUAtK
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

stealc vidar stealer

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

https://t.me/r8z0l
https://steamcommunity.com/profiles/76561199698764354

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 10 IoCs

stealer

resource	yara_rule
behavioral1/memory/2972-3-0x0000000003320000-0x000000000346B000-memory.dmp	family_vidar_v7
behavioral1/memory/2380-17-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2380-23-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2380-22-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2380-18-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2380-15-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2380-171-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2380-192-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2380-225-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2380-246-0x0000000000400000-0x0000000000648000-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
2380	kat3F32.tmp

Loads dropped DLL 2 IoCs

pid	Process
2972	afb30ae144216bb3c4904b68fa3b264916370cd8ab6a0728d39c0c91cad8c36a.exe
2972	afb30ae144216bb3c4904b68fa3b264916370cd8ab6a0728d39c0c91cad8c36a.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2972 set thread context of 2380	2972	afb30ae144216bb3c4904b68fa3b264916370cd8ab6a0728d39c0c91cad8c36a.exe	28

Modifies system certificate store 2 TTPs 3 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25	kat3F32.tmp
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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	kat3F32.tmp
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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	kat3F32.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2972 wrote to memory of 2380	2972	afb30ae144216bb3c4904b68fa3b264916370cd8ab6a0728d39c0c91cad8c36a.exe	28
PID 2972 wrote to memory of 2380	2972	afb30ae144216bb3c4904b68fa3b264916370cd8ab6a0728d39c0c91cad8c36a.exe	28
PID 2972 wrote to memory of 2380	2972	afb30ae144216bb3c4904b68fa3b264916370cd8ab6a0728d39c0c91cad8c36a.exe	28
PID 2972 wrote to memory of 2380	2972	afb30ae144216bb3c4904b68fa3b264916370cd8ab6a0728d39c0c91cad8c36a.exe	28
PID 2972 wrote to memory of 2380	2972	afb30ae144216bb3c4904b68fa3b264916370cd8ab6a0728d39c0c91cad8c36a.exe	28
PID 2972 wrote to memory of 2380	2972	afb30ae144216bb3c4904b68fa3b264916370cd8ab6a0728d39c0c91cad8c36a.exe	28
PID 2972 wrote to memory of 2380	2972	afb30ae144216bb3c4904b68fa3b264916370cd8ab6a0728d39c0c91cad8c36a.exe	28
PID 2972 wrote to memory of 2380	2972	afb30ae144216bb3c4904b68fa3b264916370cd8ab6a0728d39c0c91cad8c36a.exe	28
PID 2972 wrote to memory of 2380	2972	afb30ae144216bb3c4904b68fa3b264916370cd8ab6a0728d39c0c91cad8c36a.exe	28

C:\Users\Admin\AppData\Local\Temp\afb30ae144216bb3c4904b68fa3b264916370cd8ab6a0728d39c0c91cad8c36a.exe
"C:\Users\Admin\AppData\Local\Temp\afb30ae144216bb3c4904b68fa3b264916370cd8ab6a0728d39c0c91cad8c36a.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2972
- C:\Users\Admin\AppData\Local\Temp\kat3F32.tmp
  C:\Users\Admin\AppData\Local\Temp\kat3F32.tmp
  2⤵
  - Executes dropped EXE
  - Modifies system certificate store
  PID:2380

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 4fc4880c2d9de1e63e36759010ea9566eb8fc6bb5d1d1c3c7ceb88c62dce3ad8
MD5 34789eae6c49fd5b47755207fbd1426a
SHA1 749ed204a97a68debea5d59a4a3728945115eaf6
SHA512 33bd76c71026b1f8928f6039678cdce0d083b8625625205dcbc19b3202a86b3bf06134a7dc18869d695be3c5e404a54cca605f0d5d567317fad64b6d07395497
MD5 SHA1 SHA512

Submit Download

Tar43FA.tmp

Path C:\Users\Admin\AppData\Local\Temp\Tar43FA.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

kat3F32.tmp

Path \Users\Admin\AppData\Local\Temp\kat3F32.tmp
Size 861KB
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
SSDEEP 24576:o0ESdQpglO1CxDyawn27h+9hrlgKQY9SGcZwCdTp:o0RIglO1CuL9VNcaCd9
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2380-13-0x0000000000400000-0x0000000000648000-memory.dmp

Download

memory/2380-9-0x0000000000400000-0x0000000000648000-memory.dmp

Download

memory/2380-246-0x0000000000400000-0x0000000000648000-memory.dmp

Download

memory/2380-18-0x0000000000400000-0x0000000000648000-memory.dmp

Download

memory/2380-11-0x0000000000400000-0x0000000000648000-memory.dmp

Download

memory/2380-15-0x0000000000400000-0x0000000000648000-memory.dmp

Download

memory/2380-225-0x0000000000400000-0x0000000000648000-memory.dmp

Download

memory/2380-22-0x0000000000400000-0x0000000000648000-memory.dmp

Download

memory/2380-23-0x0000000000400000-0x0000000000648000-memory.dmp

Download

memory/2380-17-0x0000000000400000-0x0000000000648000-memory.dmp

Download

memory/2380-214-0x000000001E1A0000-0x000000001E3FF000-memory.dmp

Download

memory/2380-171-0x0000000000400000-0x0000000000648000-memory.dmp

Download

memory/2380-192-0x0000000000400000-0x0000000000648000-memory.dmp

Download

memory/2972-3-0x0000000003320000-0x000000000346B000-memory.dmp

Download

memory/2972-0-0x00000000001B0000-0x00000000001B1000-memory.dmp

Download

memory/2972-20-0x0000000000400000-0x00000000005C8000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads