bb947e54137e56040819eefd51990978b28ac3291fb729447470a67f240be1ad

Analysis

max time kernel
149s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
14/02/2024, 09:40

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General

Target

9b57bbeb7a77e9ff4256defe7141bab3.dll
Size

424KB
MD5

9b57bbeb7a77e9ff4256defe7141bab3
SHA1

3d2adf3e0ebac41aadfd122f119786127ea42e0c
SHA256

bb947e54137e56040819eefd51990978b28ac3291fb729447470a67f240be1ad
SHA512

d3efd3ddaa265f7e1e5b8cd496738a7a4799ec5f479f87c9cbdfd3177f9085e378891345515a7c26e8802b1a7be8158e72a35e006a24c842e76d73683c3b7f53
SSDEEP

6144:i/0z/2rEZgcwPDHTSNT/rANdYdtGinqRfvTqDeFul0Mh5TBWQOX6JHY2DbAV0Zg:007/XwboTzAN2tnqRfCevM7TBw0Z4

Score

8^/10

persistence

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
7	4704	rundll32.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	rundll32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\9b57bbeb7a77e9ff4256defe7141bab3.dll = "rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\9b57bbeb7a77e9ff4256defe7141bab3.dll\",watch"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\9b57bbeb7a77e9ff4256defe7141bab3.dll_xserve = "rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\9b57bbeb7a77e9ff4256defe7141bab3.dll\",xserve"	rundll32.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe
1856	rundll32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2280 wrote to memory of 4900	2280	rundll32.exe	63
PID 2280 wrote to memory of 4900	2280	rundll32.exe	63
PID 2280 wrote to memory of 4900	2280	rundll32.exe	63
PID 4900 wrote to memory of 1856	4900	rundll32.exe	86
PID 4900 wrote to memory of 1856	4900	rundll32.exe	86
PID 4900 wrote to memory of 1856	4900	rundll32.exe	86
PID 4900 wrote to memory of 4704	4900	rundll32.exe	87
PID 4900 wrote to memory of 4704	4900	rundll32.exe	87
PID 4900 wrote to memory of 4704	4900	rundll32.exe	87

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9b57bbeb7a77e9ff4256defe7141bab3.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2280
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\9b57bbeb7a77e9ff4256defe7141bab3.dll,#1
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:4900
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\System32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\9b57bbeb7a77e9ff4256defe7141bab3.dll",watch
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:1856
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\System32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\9b57bbeb7a77e9ff4256defe7141bab3.dll",xserve
    3⤵
    - Blocklisted process makes network request
    PID:4704

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1856-7-0x00000000025D0000-0x00000000026D0000-memory.dmp

Filesize
1024KB

Download
memory/1856-15-0x00000000750A0000-0x000000007515E000-memory.dmp

Filesize
760KB

Download
memory/1856-19-0x00000000025D0000-0x00000000026D0000-memory.dmp

Filesize
1024KB

Download
memory/4704-11-0x00000000029D0000-0x0000000002AD0000-memory.dmp

Filesize
1024KB

Download
memory/4704-16-0x00000000750A0000-0x000000007515E000-memory.dmp

Filesize
760KB

Download
memory/4704-20-0x00000000029D0000-0x0000000002AD0000-memory.dmp

Filesize
1024KB

Download
memory/4900-0-0x0000000001F40000-0x0000000002040000-memory.dmp

Filesize
1024KB

Download
memory/4900-1-0x00000000750A0000-0x000000007515E000-memory.dmp

Filesize
760KB

Download