672bb2fa74f841402c1a32e7f707993825922b609dbbe8cf479f4eb6b09d49d2

General

Target

a1cd11798083cb237667b0097a02f1d0N.exe
Size

498KB
MD5

a1cd11798083cb237667b0097a02f1d0
SHA1

58d90968a048a996421824d5a4d9e25e8b029e65
SHA256

672bb2fa74f841402c1a32e7f707993825922b609dbbe8cf479f4eb6b09d49d2
SHA512

e03d457ecbee9ab45d8284815add6f4caef02521e7aa53978dd0cd2a5c173c8e700d80fd0ba8b45a3696fc878dec59a7237c846dbe9b8d180ad4e7b2386cdcea
SSDEEP

12288:YTFERriEKHWHqlha0vW2cSaFOG7WHuJCXD:YToiEKHWHUaocSaVrkD

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__	a1cd11798083cb237667b0097a02f1d0N.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-1-5-21-384068567-2943195810-3631207890-1000\Control Panel\International\Geo\Nation	a1cd11798083cb237667b0097a02f1d0N.exe

Executes dropped EXE 1 IoCs

pid	Process
5056	s7740.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	s7740.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	s7740.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	s7740.exe
File created	C:\Windows\assembly\Desktop.ini	s7740.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	s7740.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
3676	1960	WerFault.exe	83

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	a1cd11798083cb237667b0097a02f1d0N.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	a1cd11798083cb237667b0097a02f1d0N.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	a1cd11798083cb237667b0097a02f1d0N.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1960	a1cd11798083cb237667b0097a02f1d0N.exe
1960	a1cd11798083cb237667b0097a02f1d0N.exe
5056	s7740.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5056	s7740.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5056	s7740.exe
5056	s7740.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1960 wrote to memory of 5056	1960	a1cd11798083cb237667b0097a02f1d0N.exe	87
PID 1960 wrote to memory of 5056	1960	a1cd11798083cb237667b0097a02f1d0N.exe	87

C:\Users\Admin\AppData\Local\Temp\a1cd11798083cb237667b0097a02f1d0N.exe
"C:\Users\Admin\AppData\Local\Temp\a1cd11798083cb237667b0097a02f1d0N.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:1960
- C:\Users\Admin\AppData\Local\Temp\n7740\s7740.exe
  "C:\Users\Admin\AppData\Local\Temp\n7740\s7740.exe" ins.exe /e 3322052 /u 4dbeaee0-8534-4a51-afb3-339e5bc06ebe /v "C:\Users\Admin\AppData\Local\Temp\a1cd11798083cb237667b0097a02f1d0N.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:5056
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1960 -s 4476
  2⤵
  - Program crash
  PID:3676

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1960 -ip 1960
1⤵
PID:1832

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\n7740\s7740.exe

Filesize
282KB

MD5
29c1470cbf58838dc6a3f9d624b4527f

SHA1
e8d1d1306e44b47e36b03ade24deb56e98bb82d4

SHA256
dd056f949a90c1de581ddb0b16c5d49309cfe99926cd397fc31cff7e4895141d

SHA512
9e90bcd2f0ff30b035531c1fd885034f6e6763d4e566bf0a0ee5b8238fdfc62d581c6c3f4e97cf36f374e1b8597fe0b39544bb30c9b7d8802cef98cc4880bd57

Download Submit
memory/5056-11-0x00007FFF67CB5000-0x00007FFF67CB6000-memory.dmp

Filesize
4KB

Download
memory/5056-12-0x00007FFF67A00000-0x00007FFF683A1000-memory.dmp

Filesize
9.6MB

Download
memory/5056-13-0x00007FFF67A00000-0x00007FFF683A1000-memory.dmp

Filesize
9.6MB

Download
memory/5056-14-0x00000000019C0000-0x00000000019CA000-memory.dmp

Filesize
40KB

Download
memory/5056-17-0x000000001C680000-0x000000001CB4E000-memory.dmp

Filesize
4.8MB

Download
memory/5056-18-0x000000001CBF0000-0x000000001CC8C000-memory.dmp

Filesize
624KB

Download
memory/5056-19-0x00000000019A0000-0x00000000019A8000-memory.dmp

Filesize
32KB

Download
memory/5056-20-0x00007FFF67A00000-0x00007FFF683A1000-memory.dmp

Filesize
9.6MB

Download
memory/5056-21-0x00007FFF67A00000-0x00007FFF683A1000-memory.dmp

Filesize
9.6MB

Download
memory/5056-22-0x00007FFF67A00000-0x00007FFF683A1000-memory.dmp

Filesize
9.6MB

Download
memory/5056-23-0x00007FFF67A00000-0x00007FFF683A1000-memory.dmp

Filesize
9.6MB

Download
memory/5056-24-0x000000001DF10000-0x000000001DF72000-memory.dmp

Filesize
392KB

Download
memory/5056-25-0x0000000020AC0000-0x0000000020BFC000-memory.dmp

Filesize
1.2MB

Download
memory/5056-26-0x0000000021110000-0x000000002161E000-memory.dmp

Filesize
5.1MB

Download
memory/5056-27-0x00007FFF67A00000-0x00007FFF683A1000-memory.dmp

Filesize
9.6MB

Download
memory/5056-28-0x00007FFF67A00000-0x00007FFF683A1000-memory.dmp

Filesize
9.6MB

Download
memory/5056-29-0x00007FFF67CB5000-0x00007FFF67CB6000-memory.dmp

Filesize
4KB

Download
memory/5056-31-0x00007FFF67A00000-0x00007FFF683A1000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads