a7d2ea641dbc8e50000e6b42c9cca200fa25d5e37ddd1857eb489795ab5564ee

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
27-06-2024 13:35

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General

Target

Beskikningers/skohornet.ser
Size

1.1MB
MD5

11825dab7ecea24188448d6de7d605a5
SHA1

90cc6eec53823cdb2e1946583042699b42c84bff
SHA256

e9f3ca77c307a76c115171b367b540d2615f30636a16ee986c852aef5eab6409
SHA512

6f0f808de0dadd0f8e94df72e1a85828f0bd8e14fb8f4300614901a17c260af55cfe33ec473fef34663e8b069bf19306eb32d38e39e60149bd85d83d14c23749
SSDEEP

768:zrTEDgAwUGxcEEBSF2XVHcg/62u6BEqlktC9le+FplzUtaPQVPKtoQFrqFrepOde:TM2gnM9

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

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\ser_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\ser_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\.ser	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\.ser\ = "ser_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\ser_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\ser_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\ser_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000_CLASSES\ser_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2960 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2960 AcroRd32.exe
2960 AcroRd32.exe

pid	process
2960	AcroRd32.exe

pid	process
2960	AcroRd32.exe
2960	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2480 wrote to memory of 2632	2480	cmd.exe	rundll32.exe
PID 2480 wrote to memory of 2632	2480	cmd.exe	rundll32.exe
PID 2480 wrote to memory of 2632	2480	cmd.exe	rundll32.exe
PID 2632 wrote to memory of 2960	2632	rundll32.exe	AcroRd32.exe
PID 2632 wrote to memory of 2960	2632	rundll32.exe	AcroRd32.exe
PID 2632 wrote to memory of 2960	2632	rundll32.exe	AcroRd32.exe
PID 2632 wrote to memory of 2960	2632	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Beskikningers\skohornet.ser
1⤵
- Suspicious use of WriteProcessMemory
PID:2480

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Beskikningers\skohornet.ser
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2632

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\Beskikningers\skohornet.ser"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2960

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Filesize
3KB

MD5
008a918ab7dfcfa644a654164e9e6c52

SHA1
a4967d5bf10ae8be92a3c18951f225cdef6a7242

SHA256
cb436741bf4b12328fb9a42b856231eb72e2b3ad77def2a4da97b82a6e2f9a6f

SHA512
a382363194cf3378bed2aa06db0ff75897fd1884f30a758027c5c1c112af391339ad2795ba8610385605d929ec262781b9cb826d4a9416f937b99f6967412cfa

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