f355ad5ecf386a0f9c32471d40398a65cbbe729faa6f30e95be1098e6ed019e9

Reason

Machine shutdown

General

Target
jaffacakes118_Trojan-Ransom.Win32.Timer.hbg.exe
Size 44KB
Sample261006-vll4fady3p
SHA256 f355ad5ecf386a0f9c32471d40398a65cbbe729faa6f30e95be1098e6ed019e9
MD5 50186565afabd3e1e43ab25f1ebc315d
SHA1 725b4718e5b35c0e20476e637d402c1cf153bec3
SHA512 f7bd56ed5b71d5b4be5c637d1e3a79432d85a91cf4adc921df93570c0ddb1d4174779a30358012abbd422cbd6ad973abbc1d66be9f39ede70ed08c9d5352fafc
SSDEEP 768:ejRL3N8vU/C3UXwMnC+s2m/jg6Lff37J7jc6uUsW/vZJ5FxETHY:ERTN8v0b0d/jg0ffBrx1LETHY
TLSH
T1BF238D13EE0A52C6D4AF0B3410BA4B18E339E43D3F2A479F5169BA75FB503C36E56684
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

defense_evasion discovery execution persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4480	27583468.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\27583468 = "C:\\Users\\Admin\\27583468.exe"	reg.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\r	27583468.exe
File opened for modification	C:\Windows\r	27583468.exe

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

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
4920	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 7 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	jaffacakes118_Trojan-Ransom.Win32.Timer.hbg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	shutdown.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	27583468.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe

Kills process with taskkill 10 IoCs

defense_evasion

pid	Process
3232	taskkill.exe
5672	taskkill.exe
4312	taskkill.exe
2108	taskkill.exe
3424	taskkill.exe
1296	taskkill.exe
5692	taskkill.exe
5608	taskkill.exe
1932	taskkill.exe
1336	taskkill.exe

Modifies Control Panel 1 IoCs

defense_evasion

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Control Panel\Desktop\ScreenSaveActive = "0"	27583468.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3872	jaffacakes118_Trojan-Ransom.Win32.Timer.hbg.exe
Token: SeShutdownPrivilege	2684	shutdown.exe
Token: SeRemoteShutdownPrivilege	2684	shutdown.exe
Token: SeDebugPrivilege	3232	taskkill.exe
Token: SeDebugPrivilege	5692	taskkill.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
4480	27583468.exe
4480	27583468.exe
2816	PickerHost.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3872 wrote to memory of 4920	3872	jaffacakes118_Trojan-Ransom.Win32.Timer.hbg.exe	89
PID 4920 wrote to memory of 4732	4920	cmd.exe	91
PID 3872 wrote to memory of 2684	3872	jaffacakes118_Trojan-Ransom.Win32.Timer.hbg.exe	92
PID 3872 wrote to memory of 4100	3872	jaffacakes118_Trojan-Ransom.Win32.Timer.hbg.exe	93
PID 4480 wrote to memory of 3232	4480	27583468.exe	99
PID 4480 wrote to memory of 5692	4480	27583468.exe	102

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Ransom.Win32.Timer.hbg.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Ransom.Win32.Timer.hbg.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3872
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c REG ADD HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v 27583468 /t REG_SZ /d "%userprofile%\27583468.exe" /f
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4920
- - C:\Windows\SysWOW64\reg.exe
    REG ADD HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v 27583468 /t REG_SZ /d "C:\Users\Admin\27583468.exe" /f
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    PID:4732
- C:\Windows\SysWOW64\shutdown.exe
  "C:\Windows\System32\shutdown.exe" /r /f /t 3
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2684
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\JAFFAC~1.EXE > nul
  2⤵
  PID:4100

C:\Windows\System32\PickerHost.exe
C:\Windows\System32\PickerHost.exe -Embedding
1⤵
- Suspicious use of SetWindowsHookEx
PID:2816

C:\Users\Admin\27583468.exe
C:\Users\Admin\27583468.exe
1⤵
- Executes dropped EXE
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies Control Panel
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4480
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /F /IM taskmgr.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:3232
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /F /IM taskmgr.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:5692
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /F /IM taskmgr.exe
  2⤵
  - Kills process with taskkill
  PID:5672
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /F /IM taskmgr.exe
  2⤵
  - Kills process with taskkill
  PID:4312
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /F /IM taskmgr.exe
  2⤵
  - Kills process with taskkill
  PID:5608
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /F /IM taskmgr.exe
  2⤵
  - Kills process with taskkill
  PID:2108
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /F /IM taskmgr.exe
  2⤵
  - Kills process with taskkill
  PID:3424
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /F /IM taskmgr.exe
  2⤵
  - Kills process with taskkill
  PID:1932
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /F /IM taskmgr.exe
  2⤵
  - Kills process with taskkill
  PID:1336
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /F /IM taskmgr.exe
  2⤵
  - Kills process with taskkill
  PID:1296

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa3a31055 /state1:0x41c64e6d
1⤵
PID:6012

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k CameraMonitor
1⤵
PID:1756

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Windows Command Shell

1

T1059.003

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Indicator Removal

1

T1070

File Deletion

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

27583468.exe

Path C:\Users\Admin\27583468.exe
Size 44KB
SHA256 f355ad5ecf386a0f9c32471d40398a65cbbe729faa6f30e95be1098e6ed019e9
MD5 50186565afabd3e1e43ab25f1ebc315d
SHA1 725b4718e5b35c0e20476e637d402c1cf153bec3
SHA512 f7bd56ed5b71d5b4be5c637d1e3a79432d85a91cf4adc921df93570c0ddb1d4174779a30358012abbd422cbd6ad973abbc1d66be9f39ede70ed08c9d5352fafc
SSDEEP 768:ejRL3N8vU/C3UXwMnC+s2m/jg6Lff37J7jc6uUsW/vZJ5FxETHY:ERTN8v0b0d/jg0ffBrx1LETHY
TLSH
T1BF238D13EE0A52C6D4AF0B3410BA4B18E339E43D3F2A479F5169BA75FB503C36E56684
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3872-0-0x0000000001130000-0x0000000001137000-memory.dmp

Download

memory/3872-2-0x0000000000820000-0x0000000000844000-memory.dmp

Download

memory/4480-10-0x0000000000B10000-0x0000000000B34000-memory.dmp

Download

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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