8e78302925f76f58d6851253ebedc8c8b0afd49ee55ee833c61abb29a7e42f12

General

Target
8e78302925f76f58d6851253ebedc8c8b0afd49ee55ee833c61abb29a7e42f12.exe
Size 3.4MB
Sample260822-tkknjs1te1
SHA256 8e78302925f76f58d6851253ebedc8c8b0afd49ee55ee833c61abb29a7e42f12
MD5 023f03cab65158c6a662d1d55c1ef5e2
SHA1 41a24bda1813bb9c9aba2e4c868ee98893690e0c
SHA512 f57fd7a182fe8b71b9448278e781bb66daed6e4db0912ff30c4fbf1fe9056bf731d0dfa4febd846a2bbf700a37e56e307d7eb2dbb4a19c7e35c7ae9c9771f0cb
SSDEEP 49152:Hs1f9fS9qQxqJQB7pB/94Pj258xjBZ6k4urCa+MxN+h7zTVzo2P2/hzYVw:IlfS9qQQUB/62k9Z8Lh7Pd8zSw
TLSH
T1D9F5F1F5B28423B9C1168C704423AF36E636661E0BB4DAE7B7C6FE907E57140E932785
MD5 SHA1 SHA512 SSDEEP TLSH

Score

8^/10

defense_evasion discovery persistence

Malware Config

Signatures

Sets service image path in registry 3 TTPs 1 IoCs

This determines the executable launched when a service starts. It can be used to establish persistence.

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\495257.sys\ImagePath = "\\??\\C:\\Users\\Admin\\AppData\\Local\\Temp495257.sys"	8e78302925f76f58d6851253ebedc8c8b0afd49ee55ee833c61abb29a7e42f12.exe

Executes dropped EXE 1 IoCs

pid	Process
1588	Temp495257.sys

Power Settings 1 TTPs 2 IoCs

powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

persistence

Power Settings

T1653

pid	Process
5256	cmd.exe
5932	powercfg.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	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8e78302925f76f58d6851253ebedc8c8b0afd49ee55ee833c61abb29a7e42f12.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powercfg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.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 4 IoCs

defense_evasion

pid	Process
3412	taskkill.exe
2372	taskkill.exe
3980	taskkill.exe
4928	taskkill.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
660	Process not Found

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeShutdownPrivilege	5932	powercfg.exe
Token: SeCreatePagefilePrivilege	5932	powercfg.exe
Token: SeShutdownPrivilege	5932	powercfg.exe
Token: SeCreatePagefilePrivilege	5932	powercfg.exe
Token: SeDebugPrivilege	3412	taskkill.exe
Token: SeDebugPrivilege	2372	taskkill.exe
Token: SeDebugPrivilege	3980	taskkill.exe
Token: SeDebugPrivilege	4928	taskkill.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2992	8e78302925f76f58d6851253ebedc8c8b0afd49ee55ee833c61abb29a7e42f12.exe
2992	8e78302925f76f58d6851253ebedc8c8b0afd49ee55ee833c61abb29a7e42f12.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2992 wrote to memory of 5256	2992	8e78302925f76f58d6851253ebedc8c8b0afd49ee55ee833c61abb29a7e42f12.exe	90
PID 5256 wrote to memory of 5932	5256	cmd.exe	92
PID 5256 wrote to memory of 3412	5256	cmd.exe	93
PID 5256 wrote to memory of 2372	5256	cmd.exe	95
PID 5256 wrote to memory of 3980	5256	cmd.exe	97
PID 5256 wrote to memory of 4928	5256	cmd.exe	99

C:\Users\Admin\AppData\Local\Temp\8e78302925f76f58d6851253ebedc8c8b0afd49ee55ee833c61abb29a7e42f12.exe
"C:\Users\Admin\AppData\Local\Temp\8e78302925f76f58d6851253ebedc8c8b0afd49ee55ee833c61abb29a7e42f12.exe"
1⤵
- Sets service image path in registry
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2992
- C:\Windows\SysWOW64\cmd.exe
  cmd /k C: & cd &@echo off&powercfg /h off&taskkill /F /IM WmiPrvSE.exe&taskkill /F /IM WmiPrvSE.exe&taskkill /F /IM WmiPrvSE.exe&taskkill /F /IM WmiPrvSE.exe&exit
  2⤵
  - Power Settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5256
- - C:\Windows\SysWOW64\powercfg.exe
    powercfg /h off
    3⤵
    - Power Settings
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:5932
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /F /IM WmiPrvSE.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3412
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /F /IM WmiPrvSE.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2372
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /F /IM WmiPrvSE.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3980
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /F /IM WmiPrvSE.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4928

C:\Users\Admin\AppData\Local\Temp495257.sys
C:\Users\Admin\AppData\Local\Temp495257.sys
1⤵
- Executes dropped EXE
PID:1588

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

Power Settings

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

Temp495257.sys

Path C:\Users\Admin\AppData\Local\Temp495257.sys
Size 2.6MB
SHA256 40d091df54542250a64e6512e38ef0412b57c933d75b80996741d89877f7f6c5
MD5 254c9e17e599b2a82628efbbcc8ca5a3
SHA1 9772e7cb1c9f843ebb547de4b75409b920014144
SHA512 630fc5d1fbc9b5df354eff0c214d1e7d325739b1da98c5232210aa1cd6f9f6ada18c760db980cac9e5ff9eeb66dc6e5f303796c4286af6ba630b06ad4e7cc203
SSDEEP 49152:LxqJQB7pB/94Pj258xjBZ6k4urCa+MxN+h7zTVzo2P2/hzYVwN:LQUB/62k9Z8Lh7Pd8zSwN
TLSH
T103C5F1FD614C3358C42ACC749523ED0AB676561E06F4A9B978C7BAC07FDF414AA22F42
MD5 SHA1 SHA512 SSDEEP TLSH

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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