cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db

General

Target

cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe
Size

280KB
MD5

30b9b7aa26d3a07242d2e6ce9e95f77b
SHA1

fb3e290ec9eb4efcc5c644251817d42172baed66
SHA256

cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db
SHA512

b1155f38f209be6fd732843c5982d8503110d28fbda780f907a0eac7fbf36194f6ffb0f82cba0eb7ac61416f829e61583920c67b0d2c84bd71f7d67b60306a26
SSDEEP

6144:hbtF3Dcrpj3Y6Dxg3gK7+X/7xdgPBT//h:hbsx1x6RSxU/h

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\yapakgfvt.exe	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\yapakgfvt.exe\DisableExceptionChainValidation	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.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-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.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	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\avast! Antivirus	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe

Drops desktop.ini file(s) 1 IoCs

description	ioc	Process
File created	C:\ProgramData\iexplorer\desktop.ini	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4192 set thread context of 3736	4192	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe	83

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\2	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\1	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.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
4612	schtasks.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\CLSID\{AE40D555-372D-3748-891D-6A403E874BE1}\641707DE\CG1	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\CLSID	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\CLSID\{AE40D555-372D-3748-891D-6A403E874BE1}	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\CLSID\{AE40D555-372D-3748-891D-6A403E874BE1}\641707DE	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\CLSID\{AE40D555-372D-3748-891D-6A403E874BE1}\641707DE\CG1\HAL = 05ee0000	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\CLSID\{AE40D555-372D-3748-891D-6A403E874BE1}\641707DE\CG1\BID = 2000080018000b00e60700001400000018000a003b002800000000009c4e7f63	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
3736	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe
3736	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
3736	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeRestorePrivilege	3736	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe
Token: SeBackupPrivilege	3736	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe
Token: SeDebugPrivilege	3736	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4192	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4192 wrote to memory of 3736	4192	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe	83
PID 4192 wrote to memory of 3736	4192	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe	83
PID 4192 wrote to memory of 3736	4192	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe	83
PID 4192 wrote to memory of 3736	4192	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe	83
PID 4192 wrote to memory of 3736	4192	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe	83
PID 4192 wrote to memory of 3736	4192	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe	83
PID 4192 wrote to memory of 3736	4192	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe	83
PID 4192 wrote to memory of 3736	4192	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe	83
PID 4192 wrote to memory of 3736	4192	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe	83
PID 3736 wrote to memory of 4612	3736	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe	84
PID 3736 wrote to memory of 4612	3736	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe	84
PID 3736 wrote to memory of 4612	3736	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe	84
PID 3736 wrote to memory of 2280	3736	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe	86
PID 3736 wrote to memory of 2280	3736	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe	86
PID 3736 wrote to memory of 2280	3736	cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe	86

C:\Users\Admin\AppData\Local\Temp\cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe
"C:\Users\Admin\AppData\Local\Temp\cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4192
- C:\Users\Admin\AppData\Local\Temp\cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.exe
  "C:\Users\Admin\AppData\Local\Temp\cc97aa8416d4afbf132cb2f5f94cb3ae671093314325f269c7363e14f85193db.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:3736
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /CREATE /SC ONLOGON /TN "Windows Update Check - 0x641707DE" /TR "C:\ProgramData\iexplorer\yapakgfvt.exe" /RL HIGHEST
    3⤵
    - Creates scheduled task(s)
    PID:4612
- - C:\Windows\SysWOW64\WerFault.exe
    "C:\Windows\SysWOW64\WerFault.exe"
    3⤵
    PID:2280

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/2280-148-0x0000000000800000-0x0000000000894000-memory.dmp

Filesize
592KB

Download
memory/2280-147-0x0000000000800000-0x0000000000894000-memory.dmp

Filesize
592KB

Download
memory/2280-146-0x0000000000AD0000-0x0000000000B4B000-memory.dmp

Filesize
492KB

Download
memory/3736-142-0x0000000000790000-0x000000000079B000-memory.dmp

Filesize
44KB

Download
memory/3736-141-0x0000000000590000-0x00000000005DB000-memory.dmp

Filesize
300KB

Download
memory/3736-140-0x0000000000590000-0x00000000005DB000-memory.dmp

Filesize
300KB

Download
memory/3736-145-0x0000000000590000-0x00000000005DB000-memory.dmp

Filesize
300KB

Download
memory/3736-139-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3736-137-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3736-135-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads