576baad9eb890eb36128a2677d133e9864da403ba6f937c1dae6b75e9d8a5a7a

General

Target

71d5e8282abbe5c45ed3cb40515bdb30N.exe
Size

507KB
MD5

71d5e8282abbe5c45ed3cb40515bdb30
SHA1

3232b234010e12308ea6bb6a461a7f5caa7840a7
SHA256

576baad9eb890eb36128a2677d133e9864da403ba6f937c1dae6b75e9d8a5a7a
SHA512

f06fcf883c847c3fd08a3c75022b93985fdb17019f27722352e1686740ab4e688b05c7cf4c9661bf6f4da126fe5e2f803b4e6e1c14a89b9c67ffc9c0e6a0dbdd
SSDEEP

12288:my8RUAXZNHvLiW4LJf08YtlCvk1V10f24moBYWdD:mytAXDHvLiVM1lCcPuf249YOD

Score

9^/10

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__	71d5e8282abbe5c45ed3cb40515bdb30N.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-1-5-21-2636447293-1148739154-93880854-1000\Control Panel\International\Geo\Nation	71d5e8282abbe5c45ed3cb40515bdb30N.exe

Executes dropped EXE 1 IoCs

pid	Process
1592	s4271.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	s4271.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	s4271.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	s4271.exe
File created	C:\Windows\assembly\Desktop.ini	s4271.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	s4271.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
1892	4796	WerFault.exe	83

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	71d5e8282abbe5c45ed3cb40515bdb30N.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	71d5e8282abbe5c45ed3cb40515bdb30N.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4796	71d5e8282abbe5c45ed3cb40515bdb30N.exe
4796	71d5e8282abbe5c45ed3cb40515bdb30N.exe
1592	s4271.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1592	s4271.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1592	s4271.exe
1592	s4271.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4796 wrote to memory of 1592	4796	71d5e8282abbe5c45ed3cb40515bdb30N.exe	87
PID 4796 wrote to memory of 1592	4796	71d5e8282abbe5c45ed3cb40515bdb30N.exe	87

C:\Users\Admin\AppData\Local\Temp\71d5e8282abbe5c45ed3cb40515bdb30N.exe
"C:\Users\Admin\AppData\Local\Temp\71d5e8282abbe5c45ed3cb40515bdb30N.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks computer location settings
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4796
- C:\Users\Admin\AppData\Local\Temp\n4271\s4271.exe
  "C:\Users\Admin\AppData\Local\Temp\n4271\s4271.exe" ins.exe /e12388104 /u52fe2c91-49dc-40b7-b209-1f140a000013 /v"C:\Users\Admin\AppData\Local\Temp\71d5e8282abbe5c45ed3cb40515bdb30N.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:1592
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4796 -s 4468
  2⤵
  - Program crash
  PID:1892

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4796 -ip 4796
1⤵
PID:4668

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

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\n4271\s4271.exe

Filesize
275KB

MD5
316287c0010874356127dd8b7bc17896

SHA1
0939ad854954393f052f5ba64b6c4b8e03a8866b

SHA256
69d0557e8d695a1d44ed91b643b93a01a2fd74056dc21bf334965f5045e8f4c9

SHA512
1d995b5e18bdf387a42d0029d20c1f2889fa70c5bc8895df674fc83e3b49bb2acd8031966b593cff2b72438bde929a50a7558adc1df5d8cae7097b8fedb39c1c

Download Submit
memory/1592-11-0x00007FFB5B095000-0x00007FFB5B096000-memory.dmp

Filesize
4KB

Download
memory/1592-12-0x00007FFB5ADE0000-0x00007FFB5B781000-memory.dmp

Filesize
9.6MB

Download
memory/1592-13-0x00007FFB5ADE0000-0x00007FFB5B781000-memory.dmp

Filesize
9.6MB

Download
memory/1592-14-0x000000001BE70000-0x000000001BE7A000-memory.dmp

Filesize
40KB

Download
memory/1592-17-0x000000001C600000-0x000000001CACE000-memory.dmp

Filesize
4.8MB

Download
memory/1592-18-0x000000001CB70000-0x000000001CC0C000-memory.dmp

Filesize
624KB

Download
memory/1592-19-0x000000001BE40000-0x000000001BE48000-memory.dmp

Filesize
32KB

Download
memory/1592-20-0x00007FFB5ADE0000-0x00007FFB5B781000-memory.dmp

Filesize
9.6MB

Download
memory/1592-21-0x00007FFB5ADE0000-0x00007FFB5B781000-memory.dmp

Filesize
9.6MB

Download
memory/1592-22-0x00007FFB5ADE0000-0x00007FFB5B781000-memory.dmp

Filesize
9.6MB

Download
memory/1592-23-0x00007FFB5ADE0000-0x00007FFB5B781000-memory.dmp

Filesize
9.6MB

Download
memory/1592-24-0x00007FFB5ADE0000-0x00007FFB5B781000-memory.dmp

Filesize
9.6MB

Download
memory/1592-25-0x000000001E1E0000-0x000000001E242000-memory.dmp

Filesize
392KB

Download
memory/1592-26-0x00000000205D0000-0x000000002070C000-memory.dmp

Filesize
1.2MB

Download
memory/1592-27-0x0000000020C20000-0x000000002112E000-memory.dmp

Filesize
5.1MB

Download
memory/1592-28-0x00007FFB5ADE0000-0x00007FFB5B781000-memory.dmp

Filesize
9.6MB

Download
memory/1592-29-0x00007FFB5ADE0000-0x00007FFB5B781000-memory.dmp

Filesize
9.6MB

Download
memory/1592-31-0x00007FFB5ADE0000-0x00007FFB5B781000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads