1789dfdee3170d75453393feb884c41eac361ce5ee848998b9d3755ee7c359f9

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17-06-2024 07:23

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Analysis

max time kernel
18s
max time network
17s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17-06-2024 06:22

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General

Target

.bash_logout
Size

220B
MD5

22bfb8c1dd94b5f3813a2b25da67463f
SHA1

dc216ac4a4c232815731979db6e494f315b507dd
SHA256

26882b79471c25f945c970f8233d8ce29d54e9d5eedcd2884f88affa84a18f56
SHA512

c3d739f4934824d81f561c9b626b494e3c256b5a97642667882632db030fc1a8c7d23eb1ae5db7e9f63ae46ee84dbee69d15130dd1482a2c1e8aade1dfc545a2

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-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.bash_logout	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.bash_logout\ = "bash_logout_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\bash_logout_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\bash_logout_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\bash_logout_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\bash_logout_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\bash_logout_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\bash_logout_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2608	AcroRd32.exe
2608	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 2168	1984	cmd.exe	29
PID 1984 wrote to memory of 2168	1984	cmd.exe	29
PID 1984 wrote to memory of 2168	1984	cmd.exe	29
PID 2168 wrote to memory of 2608	2168	rundll32.exe	30
PID 2168 wrote to memory of 2608	2168	rundll32.exe	30
PID 2168 wrote to memory of 2608	2168	rundll32.exe	30
PID 2168 wrote to memory of 2608	2168	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\.bash_logout
1⤵
- Suspicious use of WriteProcessMemory
PID:1984
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\.bash_logout
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2168
- - 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\.bash_logout"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:2608

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
16779685600b32b1fbce1d43484d1d54

SHA1
b3736af6feae05ac57e93456afacdef6a6f43518

SHA256
1050597e4b4482e67d64e859f9fca93385d23d2728cd672988fdab28c9f84310

SHA512
3bcb4f988d8fa2da71971c0d10e121426add841e96863744f3340ae0392a7d9bbea6995aac9eb12cef0e996a718603054797bedbef878a0fdf9c581b2c1276ee

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