a7d2ea641dbc8e50000e6b42c9cca200fa25d5e37ddd1857eb489795ab5564ee

Analysis

max time kernel
119s
max time network
120s
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

Besttelsestropper.hov
Size

272KB
MD5

f8863d882553a6efb3cb6111e7b13e3b
SHA1

c1079473474483560740fd299e53e9d4f7394b2e
SHA256

7e7cd7ae34b03ce558793e91faeba688e1d6bfd8753faff3d60f0bfdcafb4e75
SHA512

8d4951d30e3774e638cb93d24ad40b0fb738f08939cf30f1d60626277c90f5318f9fa2c5b322be12dbfbb8e7cb869d03d01138a112ebb1c041d3e533a10e1b32
SSDEEP

6144:EBIUbXTygOPJfDSn/ixkc0Ll9yCnYV8bws3fy4B:XkXOZxbakkc0Ll9QsY4B

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
Set value (str)	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000_CLASSES\hov_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000_CLASSES\.hov	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000_CLASSES\.hov\ = "hov_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000_CLASSES\hov_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000_CLASSES\hov_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000_CLASSES\hov_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000_CLASSES\hov_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000_CLASSES\hov_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

3008 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

3008 AcroRd32.exe
3008 AcroRd32.exe

pid	process
3008	AcroRd32.exe

pid	process
3008	AcroRd32.exe
3008	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2184 wrote to memory of 2888	2184	cmd.exe	rundll32.exe
PID 2184 wrote to memory of 2888	2184	cmd.exe	rundll32.exe
PID 2184 wrote to memory of 2888	2184	cmd.exe	rundll32.exe
PID 2888 wrote to memory of 3008	2888	rundll32.exe	AcroRd32.exe
PID 2888 wrote to memory of 3008	2888	rundll32.exe	AcroRd32.exe
PID 2888 wrote to memory of 3008	2888	rundll32.exe	AcroRd32.exe
PID 2888 wrote to memory of 3008	2888	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Besttelsestropper.hov
1⤵
- Suspicious use of WriteProcessMemory
PID:2184

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Besttelsestropper.hov
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2888

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\Besttelsestropper.hov"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:3008

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
c441e96f67574a8da5877a2008cb28f3

SHA1
ebc61bb724d229e498c84d3369c34e0e8e3ba6e0

SHA256
6d37f57365929b3523498b8f9c51fbf23738769c3c43d8058920c647926b0d0d

SHA512
8bdac559ec0768ba1821de0ab313c972c571695fa44d7bef9e77520a4b4a17498d1196ae5f99b9899ae4e1803a44279462e31d1fd1e15e52914f67778273e1ca

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