516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716

General

Target

516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe
Size

346KB
MD5

1be171a3c3a7a9006c6940201c6f9c26
SHA1

aff2ba127f315a6a1d2e4aec1c06da3fbf4d59d6
SHA256

516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716
SHA512

961b34bab378064094b5b458b9925a90627113e3caec0a39c1f25ca0a32a2d98e169ba5b60466e6cff096f65fca03b468f866bbee09c12d0838f35a193f21af7
SSDEEP

6144:1cjqC9W81Xf8DgwNuey092Qeb5JcPDn1wOMKtEjt:1Y3s81vNw011tkD1bMKtEj

Score

8^/10

persistence

Malware Config

Signatures

Sets file execution options in registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ygzavxjxc.exe	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ygzavxjxc.exe\DisableExceptionChainValidation	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe

Checks for any installed AV software in registry 1 TTPs 2 IoCs

Security Software Discovery

T1063

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Avira	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\avast! Antivirus	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe

Drops desktop.ini file(s) 1 IoCs

description	ioc	Process
File created	C:\ProgramData\host\desktop.ini	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3800 set thread context of 4772	3800	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe	81

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\2	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
2232	schtasks.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\CLSID\{FC741B3A-6F8B-A542-B405-E3137C990A99}\5BC90751\CG1	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\CLSID	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\CLSID\{FC741B3A-6F8B-A542-B405-E3137C990A99}	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\CLSID\{FC741B3A-6F8B-A542-B405-E3137C990A99}\5BC90751	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\CLSID\{FC741B3A-6F8B-A542-B405-E3137C990A99}\5BC90751\CG1\HAL = 05ee0000	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\CLSID\{FC741B3A-6F8B-A542-B405-E3137C990A99}\5BC90751\CG1\BID = 200008001c000b00e6070000140000001c000d002200200000000000e8b88463	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
4772	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe
4772	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4772	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeRestorePrivilege	4772	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe
Token: SeBackupPrivilege	4772	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe
Token: SeDebugPrivilege	4772	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3800	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3800 wrote to memory of 4772	3800	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe	81
PID 3800 wrote to memory of 4772	3800	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe	81
PID 3800 wrote to memory of 4772	3800	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe	81
PID 3800 wrote to memory of 4772	3800	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe	81
PID 3800 wrote to memory of 4772	3800	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe	81
PID 3800 wrote to memory of 4772	3800	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe	81
PID 3800 wrote to memory of 4772	3800	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe	81
PID 3800 wrote to memory of 4772	3800	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe	81
PID 3800 wrote to memory of 4772	3800	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe	81
PID 3800 wrote to memory of 4772	3800	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe	81
PID 4772 wrote to memory of 2232	4772	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe	82
PID 4772 wrote to memory of 2232	4772	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe	82
PID 4772 wrote to memory of 2232	4772	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe	82
PID 4772 wrote to memory of 936	4772	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe	87
PID 4772 wrote to memory of 936	4772	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe	87
PID 4772 wrote to memory of 936	4772	516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe	87

C:\Users\Admin\AppData\Local\Temp\516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe
"C:\Users\Admin\AppData\Local\Temp\516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3800
- C:\Users\Admin\AppData\Local\Temp\516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe
  "C:\Users\Admin\AppData\Local\Temp\516f7cc790793d7eb88446506c5c1e257f54efa449a7143520f594ed4affb716.exe"
  2⤵
  - Sets file execution options in registry
  - Checks computer location settings
  - Checks for any installed AV software in registry
  - Drops desktop.ini file(s)
  - Checks processor information in registry
  - Modifies registry class
  - Suspicious behavior: MapViewOfSection
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4772
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /CREATE /SC ONLOGON /TN "Windows Update Check - 0x5BC90751" /TR "C:\ProgramData\host\ygzavxjxc.exe" /RL HIGHEST
    3⤵
    - Creates scheduled task(s)
    PID:2232
- - C:\Windows\SysWOW64\WerFault.exe
    "C:\Windows\SysWOW64\WerFault.exe"
    3⤵
    PID:936

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

Security Software Discovery

1

T1063

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/936-148-0x0000000000820000-0x00000000008C5000-memory.dmp

Filesize
660KB

Download
memory/936-147-0x0000000000820000-0x00000000008C5000-memory.dmp

Filesize
660KB

Download
memory/936-146-0x0000000000970000-0x00000000009EB000-memory.dmp

Filesize
492KB

Download
memory/4772-142-0x00000000004C0000-0x000000000050B000-memory.dmp

Filesize
300KB

Download
memory/4772-143-0x0000000000680000-0x000000000068B000-memory.dmp

Filesize
44KB

Download
memory/4772-140-0x00000000004C0000-0x000000000050B000-memory.dmp

Filesize
300KB

Download
memory/4772-145-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4772-139-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4772-137-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4772-135-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads