a7ff068df4e5cb90cfef8c4b5f6d512ca021ae9b71b111e701cfef53e953a960

General

Target

721839f3b46046e609e0460fc7d66280N.exe
Size

506KB
MD5

721839f3b46046e609e0460fc7d66280
SHA1

be5fd324888881f66a8c22dc91192d2b78f06a16
SHA256

a7ff068df4e5cb90cfef8c4b5f6d512ca021ae9b71b111e701cfef53e953a960
SHA512

5ddf274d2761c7184229a11ffeb4279bef19149a4ae0b9badfd43f87d4947aa730ec83bf72f5feef0e415f28dcac3177a77ec80776c43e3d7e9dfc6785523d9b
SSDEEP

12288:DyQRUAXZNHvLiW4NJz5cY2vklltT1AV0MjoB5W+u:Dy5AXDHvLijd2cllpGV0MC59u

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__	721839f3b46046e609e0460fc7d66280N.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-1-5-21-2077438316-259605770-1264560426-1000\Control Panel\International\Geo\Nation	721839f3b46046e609e0460fc7d66280N.exe

Executes dropped EXE 1 IoCs

pid	Process
1976	s5939.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	s5939.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	s5939.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	s5939.exe
File created	C:\Windows\assembly\Desktop.ini	s5939.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	s5939.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
4380	328	WerFault.exe	82

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	721839f3b46046e609e0460fc7d66280N.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	721839f3b46046e609e0460fc7d66280N.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	721839f3b46046e609e0460fc7d66280N.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
328	721839f3b46046e609e0460fc7d66280N.exe
328	721839f3b46046e609e0460fc7d66280N.exe
1976	s5939.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1976	s5939.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1976	s5939.exe
1976	s5939.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 328 wrote to memory of 1976	328	721839f3b46046e609e0460fc7d66280N.exe	86
PID 328 wrote to memory of 1976	328	721839f3b46046e609e0460fc7d66280N.exe	86

C:\Users\Admin\AppData\Local\Temp\721839f3b46046e609e0460fc7d66280N.exe
"C:\Users\Admin\AppData\Local\Temp\721839f3b46046e609e0460fc7d66280N.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:328
- C:\Users\Admin\AppData\Local\Temp\n5939\s5939.exe
  "C:\Users\Admin\AppData\Local\Temp\n5939\s5939.exe" ins.exe /e6126600 /u50d1d9d5-cf90-407c-820a-35e05bc06f2f /v"C:\Users\Admin\AppData\Local\Temp\721839f3b46046e609e0460fc7d66280N.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 328 -s 4472
  2⤵
  - Program crash
  PID:4380

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 328 -ip 328
1⤵
PID:4996

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\n5939\s5939.exe

Filesize
275KB

MD5
316287c0010874356127dd8b7bc17896

SHA1
0939ad854954393f052f5ba64b6c4b8e03a8866b

SHA256
69d0557e8d695a1d44ed91b643b93a01a2fd74056dc21bf334965f5045e8f4c9

SHA512
1d995b5e18bdf387a42d0029d20c1f2889fa70c5bc8895df674fc83e3b49bb2acd8031966b593cff2b72438bde929a50a7558adc1df5d8cae7097b8fedb39c1c

Download Submit
memory/1976-11-0x00007FFECA0A5000-0x00007FFECA0A6000-memory.dmp

Filesize
4KB

Download
memory/1976-12-0x00007FFEC9DF0000-0x00007FFECA791000-memory.dmp

Filesize
9.6MB

Download
memory/1976-13-0x00007FFEC9DF0000-0x00007FFECA791000-memory.dmp

Filesize
9.6MB

Download
memory/1976-14-0x000000001BA50000-0x000000001BA5A000-memory.dmp

Filesize
40KB

Download
memory/1976-17-0x000000001C1C0000-0x000000001C68E000-memory.dmp

Filesize
4.8MB

Download
memory/1976-18-0x000000001C730000-0x000000001C7CC000-memory.dmp

Filesize
624KB

Download
memory/1976-19-0x00000000016E0000-0x00000000016E8000-memory.dmp

Filesize
32KB

Download
memory/1976-20-0x00007FFEC9DF0000-0x00007FFECA791000-memory.dmp

Filesize
9.6MB

Download
memory/1976-21-0x00007FFEC9DF0000-0x00007FFECA791000-memory.dmp

Filesize
9.6MB

Download
memory/1976-22-0x00007FFEC9DF0000-0x00007FFECA791000-memory.dmp

Filesize
9.6MB

Download
memory/1976-23-0x00007FFEC9DF0000-0x00007FFECA791000-memory.dmp

Filesize
9.6MB

Download
memory/1976-24-0x000000001E020000-0x000000001E082000-memory.dmp

Filesize
392KB

Download
memory/1976-25-0x00000000201B0000-0x00000000202EC000-memory.dmp

Filesize
1.2MB

Download
memory/1976-26-0x0000000020800000-0x0000000020D0E000-memory.dmp

Filesize
5.1MB

Download
memory/1976-27-0x00007FFEC9DF0000-0x00007FFECA791000-memory.dmp

Filesize
9.6MB

Download
memory/1976-28-0x00007FFEC9DF0000-0x00007FFECA791000-memory.dmp

Filesize
9.6MB

Download
memory/1976-30-0x00007FFEC9DF0000-0x00007FFECA791000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads