83494ed11fc33a848fd5c8d6fc92d92b9a5a4c712fc9ecfcdb84cef6271ea0bf

Resubmissions

28/09/2024, 12:43

240928-pxw5wswerm 10

28/09/2024, 12:20

240928-phq1bsyama 10

Analysis

max time kernel
1562s
max time network
1567s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28/09/2024, 12:43

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General

Target

update.sh
Size

3KB
MD5

11b5319f12983cb1c99edc750d66724c
SHA1

655b3e158548d7bbc89f38330490d97c554b2988
SHA256

83494ed11fc33a848fd5c8d6fc92d92b9a5a4c712fc9ecfcdb84cef6271ea0bf
SHA512

99ba7efe8bad98adaffb423cc9461499770a448d29aee5d1a2785d808d4a4a09d8b9f4ebe55279c7c3a527a4fc7792197e2785430dd5ec1184175b30ef51d774

Score

3^/10

discovery

Malware Config

Signatures

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 9 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000_CLASSES\sh_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000_CLASSES\.sh	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000_CLASSES\.sh\ = "sh_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000_CLASSES\sh_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000_CLASSES\sh_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000_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-1-5-21-1846800975-3917212583-2893086201-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000_CLASSES\sh_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000_CLASSES\sh_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2820	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2820	AcroRd32.exe
2820	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2660 wrote to memory of 2588	2660	cmd.exe	32
PID 2660 wrote to memory of 2588	2660	cmd.exe	32
PID 2660 wrote to memory of 2588	2660	cmd.exe	32
PID 2588 wrote to memory of 2820	2588	rundll32.exe	33
PID 2588 wrote to memory of 2820	2588	rundll32.exe	33
PID 2588 wrote to memory of 2820	2588	rundll32.exe	33
PID 2588 wrote to memory of 2820	2588	rundll32.exe	33

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\update.sh
1⤵
- Suspicious use of WriteProcessMemory
PID:2660
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\update.sh
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2588
- - 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\update.sh"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2820

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

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
eaeff2049f46dc4adc3f1ba9bd8db51a

SHA1
f365f585c2b5ae67a5f7a727f7e5aac6b1980d26

SHA256
2d2f603c22877debeb24a337f1f9404aaeaf52e084cc774fea1979a0c54dea02

SHA512
d01055279d6da91c5bb2d52edb4b647456bbfe33912a147116b53a1092663e0f03e0e0c70ad582f95777a5398c822a6bc1ea3d7836c3f5f7cd7327bda5f57374

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