72bd7873fad20711f10e678125907c86bfd4ba49cadd7c97c864851ac1377a99

General

Target

72bd7873fad20711f10e678125907c86bfd4ba49cadd7c97c864851ac1377a99.exe
Size

514KB
MD5

a91cf8b6c1edb061473e85b4bdd10040
SHA1

ae2f293ca5ce948f7f014bcb58fd848d8d87ded9
SHA256

72bd7873fad20711f10e678125907c86bfd4ba49cadd7c97c864851ac1377a99
SHA512

132c76b5e0b8bb4b09627a1947a4ef62ff96fe5ed06567502b7dd219355ad9d33f5659716f1512ab6269a8d785ab0a73ca56f0cb46c7d749fb933d070c598c5e
SSDEEP

12288:Wt+XGgLuX/RrTWJ+FtK9D+QUBYuQK6yNZAnk2HcK1xRQp2Ja+HWf:vGg2/RrTxTKg1BY0JNSnkNuAEjHu

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, C:\\Users\\Admin\\AppData\\Roaming\\MicrosoftServices\\MicrosoftServices\\perk.exe"	perk.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, C:\\Users\\Admin\\AppData\\Roaming\\MicrosoftServices\\MicrosoftServices\\perk.exe"	perk.exe

Executes dropped EXE 1 IoCs

pid	Process
4876	perk.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	72bd7873fad20711f10e678125907c86bfd4ba49cadd7c97c864851ac1377a99.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	perk.exe

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-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ = "C:\\Windows\\SysWOW64\\svchost.exe"	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4876 set thread context of 5112	4876	perk.exe	90

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

System Information Discovery
T1082

NTFS ADS 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\MicrosoftServices\MicrosoftServices\perk.exe\:ZONE.identifier:$DATA	72bd7873fad20711f10e678125907c86bfd4ba49cadd7c97c864851ac1377a99.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\MicrosoftServices\MicrosoftServices\perk.exe:ZONE.identifier	cmd.exe
File created	C:\Users\Admin\AppData\Local\Temp\72bd7873fad20711f10e678125907c86bfd4ba49cadd7c97c864851ac1377a99.exe:ZONE.identifier	cmd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4804	72bd7873fad20711f10e678125907c86bfd4ba49cadd7c97c864851ac1377a99.exe
4876	perk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4804	72bd7873fad20711f10e678125907c86bfd4ba49cadd7c97c864851ac1377a99.exe
Token: SeDebugPrivilege	4876	perk.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4804 wrote to memory of 4892	4804	72bd7873fad20711f10e678125907c86bfd4ba49cadd7c97c864851ac1377a99.exe	85
PID 4804 wrote to memory of 4892	4804	72bd7873fad20711f10e678125907c86bfd4ba49cadd7c97c864851ac1377a99.exe	85
PID 4804 wrote to memory of 4892	4804	72bd7873fad20711f10e678125907c86bfd4ba49cadd7c97c864851ac1377a99.exe	85
PID 4804 wrote to memory of 4876	4804	72bd7873fad20711f10e678125907c86bfd4ba49cadd7c97c864851ac1377a99.exe	87
PID 4804 wrote to memory of 4876	4804	72bd7873fad20711f10e678125907c86bfd4ba49cadd7c97c864851ac1377a99.exe	87
PID 4804 wrote to memory of 4876	4804	72bd7873fad20711f10e678125907c86bfd4ba49cadd7c97c864851ac1377a99.exe	87
PID 4876 wrote to memory of 2196	4876	perk.exe	88
PID 4876 wrote to memory of 2196	4876	perk.exe	88
PID 4876 wrote to memory of 2196	4876	perk.exe	88
PID 4876 wrote to memory of 5112	4876	perk.exe	90
PID 4876 wrote to memory of 5112	4876	perk.exe	90
PID 4876 wrote to memory of 5112	4876	perk.exe	90
PID 4876 wrote to memory of 5112	4876	perk.exe	90
PID 4876 wrote to memory of 5112	4876	perk.exe	90
PID 4876 wrote to memory of 5112	4876	perk.exe	90
PID 4876 wrote to memory of 5112	4876	perk.exe	90
PID 4876 wrote to memory of 5112	4876	perk.exe	90
PID 4876 wrote to memory of 5112	4876	perk.exe	90
PID 4876 wrote to memory of 5112	4876	perk.exe	90
PID 4876 wrote to memory of 5112	4876	perk.exe	90

C:\Users\Admin\AppData\Local\Temp\72bd7873fad20711f10e678125907c86bfd4ba49cadd7c97c864851ac1377a99.exe
"C:\Users\Admin\AppData\Local\Temp\72bd7873fad20711f10e678125907c86bfd4ba49cadd7c97c864851ac1377a99.exe"
1⤵
- Checks computer location settings
- NTFS ADS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4804
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c echo [zoneTransfer]ZoneID = 2 > "C:\Users\Admin\AppData\Local\Temp\72bd7873fad20711f10e678125907c86bfd4ba49cadd7c97c864851ac1377a99.exe":ZONE.identifier & exit
  2⤵
  - NTFS ADS
  PID:4892
- C:\Users\Admin\AppData\Roaming\MicrosoftServices\MicrosoftServices\perk.exe
  "C:\Users\Admin\AppData\Roaming\MicrosoftServices\MicrosoftServices\perk.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Executes dropped EXE
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4876
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c echo [zoneTransfer]ZoneID = 2 > "C:\Users\Admin\AppData\Roaming\MicrosoftServices\MicrosoftServices\perk.exe":ZONE.identifier & exit
    3⤵
    - NTFS ADS
    PID:2196
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Windows\\System32\\svchost.exe"
    3⤵
    - Adds Run key to start application
    PID:5112

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

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\72bd7873fad20711f10e678125907c86bfd4ba49cadd7c97c864851ac1377a99.exe

Filesize
514KB

MD5
a91cf8b6c1edb061473e85b4bdd10040

SHA1
ae2f293ca5ce948f7f014bcb58fd848d8d87ded9

SHA256
72bd7873fad20711f10e678125907c86bfd4ba49cadd7c97c864851ac1377a99

SHA512
132c76b5e0b8bb4b09627a1947a4ef62ff96fe5ed06567502b7dd219355ad9d33f5659716f1512ab6269a8d785ab0a73ca56f0cb46c7d749fb933d070c598c5e

Download Submit
C:\Users\Admin\AppData\Roaming\MicrosoftServices\MicrosoftServices\perk.exe

Filesize
514KB

MD5
a91cf8b6c1edb061473e85b4bdd10040

SHA1
ae2f293ca5ce948f7f014bcb58fd848d8d87ded9

SHA256
72bd7873fad20711f10e678125907c86bfd4ba49cadd7c97c864851ac1377a99

SHA512
132c76b5e0b8bb4b09627a1947a4ef62ff96fe5ed06567502b7dd219355ad9d33f5659716f1512ab6269a8d785ab0a73ca56f0cb46c7d749fb933d070c598c5e

Download Submit
C:\Users\Admin\AppData\Roaming\MicrosoftServices\MicrosoftServices\perk.exe

Filesize
514KB

MD5
a91cf8b6c1edb061473e85b4bdd10040

SHA1
ae2f293ca5ce948f7f014bcb58fd848d8d87ded9

SHA256
72bd7873fad20711f10e678125907c86bfd4ba49cadd7c97c864851ac1377a99

SHA512
132c76b5e0b8bb4b09627a1947a4ef62ff96fe5ed06567502b7dd219355ad9d33f5659716f1512ab6269a8d785ab0a73ca56f0cb46c7d749fb933d070c598c5e

Download Submit
memory/2196-141-0x0000000000000000-mapping.dmp

Download
memory/4804-140-0x0000000074940000-0x0000000074EF1000-memory.dmp

Filesize
5.7MB

Download
memory/4804-133-0x0000000074940000-0x0000000074EF1000-memory.dmp

Filesize
5.7MB

Download
memory/4804-132-0x0000000074940000-0x0000000074EF1000-memory.dmp

Filesize
5.7MB

Download
memory/4876-136-0x0000000000000000-mapping.dmp

Download
memory/4876-139-0x0000000074940000-0x0000000074EF1000-memory.dmp

Filesize
5.7MB

Download
memory/4876-146-0x0000000074940000-0x0000000074EF1000-memory.dmp

Filesize
5.7MB

Download
memory/4892-134-0x0000000000000000-mapping.dmp

Download
memory/5112-142-0x0000000000000000-mapping.dmp

Download
memory/5112-143-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5112-144-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5112-145-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5112-147-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5112-148-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads