shurk | 77f8baaeaf504f6e72a5f8698297e9cccd4f3b13d6848a746a9f3b1cfe95e0bc

Analysis

max time kernel
142s
max time network
119s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
14-02-2024 03:23

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General

Target

9aa17d9ab2b1819c1ec113a20d4f776e.exe
Size

371KB
MD5

9aa17d9ab2b1819c1ec113a20d4f776e
SHA1

06b1b4435df099fbec480cfcd7a11828be756902
SHA256

77f8baaeaf504f6e72a5f8698297e9cccd4f3b13d6848a746a9f3b1cfe95e0bc
SHA512

eec24fdc836359f00a8fcb90a8e98ead820fdf32a1e09728fb36f8ea5ad1eaa9aed04c50341a537eec74c9c5469465b9f42d07497c52f3b47e7dfb9f70e6ac84
SSDEEP

6144:k9RANfViL+L0tKHNLlbUH4hbP2DsEVhVL5u1uz/QyY830vaBr:IANfVG+L6Kt2HSbuDs2zdu1IdYcQa

Score

10^/10

shurk infostealer

Malware Config

Signatures

Shurk
Shurk is an infostealer, written in C++ which appeared in 2021.
infostealer shurk

Drops desktop.ini file(s) 3 IoCs

Processes:

9aa17d9ab2b1819c1ec113a20d4f776e.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Local\Temp\desktop.ini	9aa17d9ab2b1819c1ec113a20d4f776e.exe
File opened for modification	C:\Users\Admin\AppData\Local\Temp\Desktop.ini	9aa17d9ab2b1819c1ec113a20d4f776e.exe
File created	C:\Users\Admin\AppData\Local\Temp\desktop.ini	9aa17d9ab2b1819c1ec113a20d4f776e.exe

Drops autorun.inf file 1 TTPs 1 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media
T1091

Processes:

9aa17d9ab2b1819c1ec113a20d4f776e.exe

description ioc process

File created C:\Users\Admin\AppData\Local\Temp\autorun.inf 9aa17d9ab2b1819c1ec113a20d4f776e.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\autorun.inf	9aa17d9ab2b1819c1ec113a20d4f776e.exe

C:\Users\Admin\AppData\Local\Temp\9aa17d9ab2b1819c1ec113a20d4f776e.exe
"C:\Users\Admin\AppData\Local\Temp\9aa17d9ab2b1819c1ec113a20d4f776e.exe"
1⤵
- Drops desktop.ini file(s)
- Drops autorun.inf file
PID:2216

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Replication Through Removable Media

T1091

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Replication Through Removable Media

T1091

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\AcLayers.dll
Filesize
371KB

MD5
9aa17d9ab2b1819c1ec113a20d4f776e

SHA1
06b1b4435df099fbec480cfcd7a11828be756902

SHA256
77f8baaeaf504f6e72a5f8698297e9cccd4f3b13d6848a746a9f3b1cfe95e0bc

SHA512
eec24fdc836359f00a8fcb90a8e98ead820fdf32a1e09728fb36f8ea5ad1eaa9aed04c50341a537eec74c9c5469465b9f42d07497c52f3b47e7dfb9f70e6ac84

Download Submit
memory/2216-65238-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2216-75993-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2216-22683-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2216-25189-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2216-33935-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2216-45503-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2216-12721-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2216-0-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2216-54650-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2216-88416-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2216-96044-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2216-113192-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2216-117218-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2216-129459-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2216-132773-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download