56a811fd6dffbdc6ea4fd497fbb2d3db0d47045deba2d235d6fe13c3cd73faea

General

Target

56a811fd6dffbdc6ea4fd497fbb2d3db0d47045deba2d235d6fe13c3cd73faea.exe
Size

1.2MB
MD5

a18dcc398139154de6b694db84b46a20
SHA1

c75bea6cad85a87e42c2b4e6e3e756bdc78e15b5
SHA256

56a811fd6dffbdc6ea4fd497fbb2d3db0d47045deba2d235d6fe13c3cd73faea
SHA512

a3617cdfc1573addecd06628ba210265203aa6213565cc6dc7b655fc186b9a24bffb20c9b600c5db5701375aaa7f1c6e67659c3f33e28ec837a0c10a6dab1fdf
SSDEEP

24576:3tb20pkaCqT5TBWgNQ7aLoc2Zwkw2Id1gq3JA36A:0Vg5tQ7aLoc2FFId1gq3JG5

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3396	98925.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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	56a811fd6dffbdc6ea4fd497fbb2d3db0d47045deba2d235d6fe13c3cd73faea.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	98925.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WerFault = "C:\\Users\\Admin\\AppData\\Roaming\\98925.exe"	98925.exe

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/files/0x000d000000022e15-133.dat	autoit_exe
behavioral2/files/0x000d000000022e15-134.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3396 set thread context of 908	3396	98925.exe	83

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3364	908	WerFault.exe	83

NTFS ADS 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\56a811fd6dffbdc6ea4fd497fbb2d3db0d47045deba2d235d6fe13c3cd73faea.exe:Zone.Identifier:$DATA	56a811fd6dffbdc6ea4fd497fbb2d3db0d47045deba2d235d6fe13c3cd73faea.exe
File created	C:\Users\Admin\AppData\Roaming\98925.exe\:Zone.Identifier:$DATA	56a811fd6dffbdc6ea4fd497fbb2d3db0d47045deba2d235d6fe13c3cd73faea.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\98925.exe:Zone.Identifier:$DATA	98925.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
2992	56a811fd6dffbdc6ea4fd497fbb2d3db0d47045deba2d235d6fe13c3cd73faea.exe
2992	56a811fd6dffbdc6ea4fd497fbb2d3db0d47045deba2d235d6fe13c3cd73faea.exe
2992	56a811fd6dffbdc6ea4fd497fbb2d3db0d47045deba2d235d6fe13c3cd73faea.exe
2992	56a811fd6dffbdc6ea4fd497fbb2d3db0d47045deba2d235d6fe13c3cd73faea.exe
3396	98925.exe
3396	98925.exe
3396	98925.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
2992	56a811fd6dffbdc6ea4fd497fbb2d3db0d47045deba2d235d6fe13c3cd73faea.exe
2992	56a811fd6dffbdc6ea4fd497fbb2d3db0d47045deba2d235d6fe13c3cd73faea.exe
2992	56a811fd6dffbdc6ea4fd497fbb2d3db0d47045deba2d235d6fe13c3cd73faea.exe
2992	56a811fd6dffbdc6ea4fd497fbb2d3db0d47045deba2d235d6fe13c3cd73faea.exe
3396	98925.exe
3396	98925.exe
3396	98925.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2992 wrote to memory of 3396	2992	56a811fd6dffbdc6ea4fd497fbb2d3db0d47045deba2d235d6fe13c3cd73faea.exe	81
PID 2992 wrote to memory of 3396	2992	56a811fd6dffbdc6ea4fd497fbb2d3db0d47045deba2d235d6fe13c3cd73faea.exe	81
PID 2992 wrote to memory of 3396	2992	56a811fd6dffbdc6ea4fd497fbb2d3db0d47045deba2d235d6fe13c3cd73faea.exe	81
PID 3396 wrote to memory of 908	3396	98925.exe	83
PID 3396 wrote to memory of 908	3396	98925.exe	83
PID 3396 wrote to memory of 908	3396	98925.exe	83
PID 3396 wrote to memory of 908	3396	98925.exe	83

C:\Users\Admin\AppData\Local\Temp\56a811fd6dffbdc6ea4fd497fbb2d3db0d47045deba2d235d6fe13c3cd73faea.exe
"C:\Users\Admin\AppData\Local\Temp\56a811fd6dffbdc6ea4fd497fbb2d3db0d47045deba2d235d6fe13c3cd73faea.exe"
1⤵
- Checks computer location settings
- NTFS ADS
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2992
- C:\Users\Admin\AppData\Roaming\98925.exe
  "C:\Users\Admin\AppData\Roaming\98925.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - NTFS ADS
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:3396
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
    3⤵
    PID:908
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 908 -s 80
      4⤵
      Program crash
      PID:3364

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 908 -ip 908
1⤵
PID:1740

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scripting

1

T1064

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

Scripting

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\xd

Filesize
355KB

MD5
78ba668db1856f03ec5ad0390fc9a37f

SHA1
d6ca40967c71c602827cb58fe07e2598280be564

SHA256
e18bb1fb9dd27e14a6f672b5ce3c891b3a0ae50deb7b2a751c83817f6c1e6d4b

SHA512
f25d8585680592aba09c9d878da1cde29a5119e769ddf782f943ecd26ce9732a031314ee7c1708b072a84c8e2c5b0ee6f4e94f9c4a9b9feda00a50be44bfaa3b

Download Submit
C:\Users\Admin\AppData\Roaming\98925.exe

Filesize
1.2MB

MD5
a18dcc398139154de6b694db84b46a20

SHA1
c75bea6cad85a87e42c2b4e6e3e756bdc78e15b5

SHA256
56a811fd6dffbdc6ea4fd497fbb2d3db0d47045deba2d235d6fe13c3cd73faea

SHA512
a3617cdfc1573addecd06628ba210265203aa6213565cc6dc7b655fc186b9a24bffb20c9b600c5db5701375aaa7f1c6e67659c3f33e28ec837a0c10a6dab1fdf

Download Submit
C:\Users\Admin\AppData\Roaming\98925.exe

Filesize
1.2MB

MD5
a18dcc398139154de6b694db84b46a20

SHA1
c75bea6cad85a87e42c2b4e6e3e756bdc78e15b5

SHA256
56a811fd6dffbdc6ea4fd497fbb2d3db0d47045deba2d235d6fe13c3cd73faea

SHA512
a3617cdfc1573addecd06628ba210265203aa6213565cc6dc7b655fc186b9a24bffb20c9b600c5db5701375aaa7f1c6e67659c3f33e28ec837a0c10a6dab1fdf

Download Submit

Analysis

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