07741d8c9218f716cdc25f9f081d82fecff437b1cc604f543bcaecfae8dd5322

General

Target

07741d8c9218f716cdc25f9f081d82fecff437b1cc604f543bcaecfae8dd5322N.exe
Size

508KB
MD5

4ba39b5315fbf5a357846db8800244c0
SHA1

3c0d869324c855cc9e2cc54c7a6786cb4516e122
SHA256

07741d8c9218f716cdc25f9f081d82fecff437b1cc604f543bcaecfae8dd5322
SHA512

c657f494346ef63b85eb24b31e2be401c60d45aa1c0ab38a5c4ebd1c920f7a974fc0f1f7fa01fb912b1fec8e4fdce350a0e6c823fb1c31a37bdca0e70ebe33b0
SSDEEP

12288:/y8RUAXZNHvLiW4LJf08YtlCvk1V10f24moBYWdC:/ytAXDHvLiVM1lCcPuf249YOC

Score

9^/10

discovery evasion

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	07741d8c9218f716cdc25f9f081d82fecff437b1cc604f543bcaecfae8dd5322N.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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	07741d8c9218f716cdc25f9f081d82fecff437b1cc604f543bcaecfae8dd5322N.exe

Executes dropped EXE 1 IoCs

pid	Process
1976	s4945.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	s4945.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	s4945.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	s4945.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	s4945.exe
File opened for modification	C:\Windows\assembly	s4945.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1348	1000	WerFault.exe	81

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	07741d8c9218f716cdc25f9f081d82fecff437b1cc604f543bcaecfae8dd5322N.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	07741d8c9218f716cdc25f9f081d82fecff437b1cc604f543bcaecfae8dd5322N.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	07741d8c9218f716cdc25f9f081d82fecff437b1cc604f543bcaecfae8dd5322N.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1000	07741d8c9218f716cdc25f9f081d82fecff437b1cc604f543bcaecfae8dd5322N.exe
1000	07741d8c9218f716cdc25f9f081d82fecff437b1cc604f543bcaecfae8dd5322N.exe
1976	s4945.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1976	s4945.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1976	s4945.exe
1976	s4945.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1000 wrote to memory of 1976	1000	07741d8c9218f716cdc25f9f081d82fecff437b1cc604f543bcaecfae8dd5322N.exe	82
PID 1000 wrote to memory of 1976	1000	07741d8c9218f716cdc25f9f081d82fecff437b1cc604f543bcaecfae8dd5322N.exe	82

C:\Users\Admin\AppData\Local\Temp\07741d8c9218f716cdc25f9f081d82fecff437b1cc604f543bcaecfae8dd5322N.exe
"C:\Users\Admin\AppData\Local\Temp\07741d8c9218f716cdc25f9f081d82fecff437b1cc604f543bcaecfae8dd5322N.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1000
- C:\Users\Admin\AppData\Local\Temp\n4945\s4945.exe
  "C:\Users\Admin\AppData\Local\Temp\n4945\s4945.exe" ins.exe /e12601323 /u52fe2c91-49dc-40b7-b209-1f140a000013 /v"C:\Users\Admin\AppData\Local\Temp\07741d8c9218f716cdc25f9f081d82fecff437b1cc604f543bcaecfae8dd5322N.exe"
  2⤵
  - Executes dropped EXE
  - Drops desktop.ini file(s)
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1976
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1000 -s 4472
  2⤵
  - Program crash
  PID:1348

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1000 -ip 1000
1⤵
PID:3608

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\n4945\s4945.exe

Filesize
275KB

MD5
316287c0010874356127dd8b7bc17896

SHA1
0939ad854954393f052f5ba64b6c4b8e03a8866b

SHA256
69d0557e8d695a1d44ed91b643b93a01a2fd74056dc21bf334965f5045e8f4c9

SHA512
1d995b5e18bdf387a42d0029d20c1f2889fa70c5bc8895df674fc83e3b49bb2acd8031966b593cff2b72438bde929a50a7558adc1df5d8cae7097b8fedb39c1c

Download Submit
memory/1976-11-0x00007FFD55E75000-0x00007FFD55E76000-memory.dmp

Filesize
4KB

Download
memory/1976-12-0x00007FFD55BC0000-0x00007FFD56561000-memory.dmp

Filesize
9.6MB

Download
memory/1976-13-0x00007FFD55BC0000-0x00007FFD56561000-memory.dmp

Filesize
9.6MB

Download
memory/1976-14-0x0000000001420000-0x000000000142A000-memory.dmp

Filesize
40KB

Download
memory/1976-17-0x000000001C160000-0x000000001C62E000-memory.dmp

Filesize
4.8MB

Download
memory/1976-18-0x000000001C6D0000-0x000000001C76C000-memory.dmp

Filesize
624KB

Download
memory/1976-19-0x00000000013F0000-0x00000000013F8000-memory.dmp

Filesize
32KB

Download
memory/1976-20-0x00007FFD55BC0000-0x00007FFD56561000-memory.dmp

Filesize
9.6MB

Download
memory/1976-21-0x00007FFD55BC0000-0x00007FFD56561000-memory.dmp

Filesize
9.6MB

Download
memory/1976-22-0x00007FFD55BC0000-0x00007FFD56561000-memory.dmp

Filesize
9.6MB

Download
memory/1976-23-0x00007FFD55BC0000-0x00007FFD56561000-memory.dmp

Filesize
9.6MB

Download
memory/1976-24-0x00007FFD55BC0000-0x00007FFD56561000-memory.dmp

Filesize
9.6MB

Download
memory/1976-25-0x000000001FF70000-0x000000001FFD2000-memory.dmp

Filesize
392KB

Download
memory/1976-26-0x00000000204E0000-0x000000002061C000-memory.dmp

Filesize
1.2MB

Download
memory/1976-27-0x0000000020B30000-0x000000002103E000-memory.dmp

Filesize
5.1MB

Download
memory/1976-28-0x00007FFD55E75000-0x00007FFD55E76000-memory.dmp

Filesize
4KB

Download
memory/1976-29-0x00007FFD55BC0000-0x00007FFD56561000-memory.dmp

Filesize
9.6MB

Download
memory/1976-30-0x00007FFD55BC0000-0x00007FFD56561000-memory.dmp

Filesize
9.6MB

Download
memory/1976-31-0x00007FFD55BC0000-0x00007FFD56561000-memory.dmp

Filesize
9.6MB

Download
memory/1976-32-0x00007FFD55BC0000-0x00007FFD56561000-memory.dmp

Filesize
9.6MB

Download
memory/1976-33-0x00007FFD55BC0000-0x00007FFD56561000-memory.dmp

Filesize
9.6MB

Download
memory/1976-35-0x00007FFD55BC0000-0x00007FFD56561000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads