74a797b76134354d534961cba765486e1d5fd8be64c954cff7e3600c626f4abd

Analysis

max time kernel
121s
max time network
124s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
21-05-2024 05:29

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General

Target

install_flutter.sh
Size

2KB
MD5

5d8f421f837a40acb12ef95d15f24f3d
SHA1

0fff042e9e3dc23c8a415293c8a0dba9651725d1
SHA256

74a797b76134354d534961cba765486e1d5fd8be64c954cff7e3600c626f4abd
SHA512

c385253a2ac1cc963974552e3d47acbb9b12be53929e2627661250212331c24f7965cf768107cc4ff20abc3d2ad648863310fe00cd7fbfc0cb973090d2820298

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\sh_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\sh_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\sh_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\sh_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\sh_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.sh	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\.sh\ = "sh_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_CLASSES\sh_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2592	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2592	AcroRd32.exe
2592	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 2564	2420	cmd.exe	29
PID 2420 wrote to memory of 2564	2420	cmd.exe	29
PID 2420 wrote to memory of 2564	2420	cmd.exe	29
PID 2564 wrote to memory of 2592	2564	rundll32.exe	30
PID 2564 wrote to memory of 2592	2564	rundll32.exe	30
PID 2564 wrote to memory of 2592	2564	rundll32.exe	30
PID 2564 wrote to memory of 2592	2564	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\install_flutter.sh
1⤵
- Suspicious use of WriteProcessMemory
PID:2420
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\install_flutter.sh
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2564
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\install_flutter.sh"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2592

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
6e424a3bfd0fc514b5cd42e72591f4b6

SHA1
a69c1d37ae7cc49886c3811dc8a4f08c14e5a862

SHA256
4a9e274e166594d22ca26a793fae44e75936f721f7a58a65ff0320f3a10417f1

SHA512
21fac874100dfc415f3a98d54b4eeeace7ac2c3c73f06edf987e83156135bc1456adb4831ef777a4aae9140c1c5026c6e528c928e73d4b15374c349c9c05f5e7

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