f6a83e6ed8bf92b8ff4da0aba72fe354199ec79a99008b34800e4cfdb92d3a67

Analysis

max time kernel
7s
max time network
8s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
22-11-2024 03:48

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Reason

Machine shutdown

Report Analysis Logs

General

Target

xpiofrbtkzhr.exe
Size

46KB
MD5

25a11c9dd8d3eb6ecf8544e95d866a98
SHA1

b462e8f5a05dba7328885af7646f9229d09656fb
SHA256

6a298fd7189f63d29fb4c4cc342844a98c10945f8e0700363b0d078111568528
SHA512

2483c4b7dad5bf273c955c70716dcb61a7f61ea1047de6f03ab867e549a3791a1c93291ef9d81e6308eecffb3a05f963b45f8b539ab31f84c5520844cb8a8992
SSDEEP

768:1ySfi5TqmFi4tuXnKtgYr/TOsex9PEMBex6BHmRGBNc1uobW80vOA4N:dK5TbUayYLTOh9PEMEx+O150vOPN

Score

7^/10

discovery persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2904	2509819211.exe

Loads dropped DLL 2 IoCs

pid	Process
2440	xpiofrbtkzhr.exe
2440	xpiofrbtkzhr.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\2509819211 = "C:\\Users\\Admin\\2509819211\\2509819211.exe"	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\2509819211_del = "cmd /c del \"C:\\Users\\Admin\\AppData\\Local\\Temp\\xpiofrbtkzhr.exe\""	reg.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral21/memory/2440-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx
behavioral21/memory/2440-424-0x0000000000400000-0x000000000041D000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 11 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	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	shutdown.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	xpiofrbtkzhr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2509819211.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe

Kills process with taskkill 4 IoCs

evasion

pid	Process
2680	taskkill.exe
1132	taskkill.exe
2676	taskkill.exe
2728	taskkill.exe

Modifies Control Panel 1 IoCs

evasion

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Control Panel\Desktop\ScreenSaveActive = "0"	2509819211.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2740	shutdown.exe
Token: SeRemoteShutdownPrivilege	2740	shutdown.exe
Token: SeDebugPrivilege	2680	taskkill.exe
Token: SeDebugPrivilege	1132	taskkill.exe
Token: SeDebugPrivilege	2676	taskkill.exe
Token: SeDebugPrivilege	2728	taskkill.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2904	2509819211.exe
2904	2509819211.exe

Suspicious use of WriteProcessMemory 40 IoCs

description	pid	Process	procid_target
PID 2440 wrote to memory of 3016	2440	xpiofrbtkzhr.exe	30
PID 2440 wrote to memory of 3016	2440	xpiofrbtkzhr.exe	30
PID 2440 wrote to memory of 3016	2440	xpiofrbtkzhr.exe	30
PID 2440 wrote to memory of 3016	2440	xpiofrbtkzhr.exe	30
PID 3016 wrote to memory of 1780	3016	cmd.exe	32
PID 3016 wrote to memory of 1780	3016	cmd.exe	32
PID 3016 wrote to memory of 1780	3016	cmd.exe	32
PID 3016 wrote to memory of 1780	3016	cmd.exe	32
PID 2440 wrote to memory of 2356	2440	xpiofrbtkzhr.exe	33
PID 2440 wrote to memory of 2356	2440	xpiofrbtkzhr.exe	33
PID 2440 wrote to memory of 2356	2440	xpiofrbtkzhr.exe	33
PID 2440 wrote to memory of 2356	2440	xpiofrbtkzhr.exe	33
PID 2440 wrote to memory of 2904	2440	xpiofrbtkzhr.exe	35
PID 2440 wrote to memory of 2904	2440	xpiofrbtkzhr.exe	35
PID 2440 wrote to memory of 2904	2440	xpiofrbtkzhr.exe	35
PID 2440 wrote to memory of 2904	2440	xpiofrbtkzhr.exe	35
PID 2904 wrote to memory of 2680	2904	2509819211.exe	36
PID 2904 wrote to memory of 2680	2904	2509819211.exe	36
PID 2904 wrote to memory of 2680	2904	2509819211.exe	36
PID 2904 wrote to memory of 2680	2904	2509819211.exe	36
PID 2440 wrote to memory of 2740	2440	xpiofrbtkzhr.exe	37
PID 2440 wrote to memory of 2740	2440	xpiofrbtkzhr.exe	37
PID 2440 wrote to memory of 2740	2440	xpiofrbtkzhr.exe	37
PID 2440 wrote to memory of 2740	2440	xpiofrbtkzhr.exe	37
PID 2356 wrote to memory of 2856	2356	cmd.exe	40
PID 2356 wrote to memory of 2856	2356	cmd.exe	40
PID 2356 wrote to memory of 2856	2356	cmd.exe	40
PID 2356 wrote to memory of 2856	2356	cmd.exe	40
PID 2904 wrote to memory of 1132	2904	2509819211.exe	43
PID 2904 wrote to memory of 1132	2904	2509819211.exe	43
PID 2904 wrote to memory of 1132	2904	2509819211.exe	43
PID 2904 wrote to memory of 1132	2904	2509819211.exe	43
PID 2904 wrote to memory of 2676	2904	2509819211.exe	45
PID 2904 wrote to memory of 2676	2904	2509819211.exe	45
PID 2904 wrote to memory of 2676	2904	2509819211.exe	45
PID 2904 wrote to memory of 2676	2904	2509819211.exe	45
PID 2904 wrote to memory of 2728	2904	2509819211.exe	47
PID 2904 wrote to memory of 2728	2904	2509819211.exe	47
PID 2904 wrote to memory of 2728	2904	2509819211.exe	47
PID 2904 wrote to memory of 2728	2904	2509819211.exe	47

C:\Users\Admin\AppData\Local\Temp\xpiofrbtkzhr.exe
"C:\Users\Admin\AppData\Local\Temp\xpiofrbtkzhr.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2440
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v 2509819211 /t REG_SZ /d "C:\Users\Admin\2509819211\2509819211.exe" /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3016
- - C:\Windows\SysWOW64\reg.exe
    REG ADD HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v 2509819211 /t REG_SZ /d "C:\Users\Admin\2509819211\2509819211.exe" /f
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    PID:1780
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /v 2509819211_del /t REG_SZ /d "cmd /c del \"C:\Users\Admin\AppData\Local\Temp\xpiofrbtkzhr.exe\"" /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2356
- - C:\Windows\SysWOW64\reg.exe
    REG ADD HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce /v 2509819211_del /t REG_SZ /d "cmd /c del \"C:\Users\Admin\AppData\Local\Temp\xpiofrbtkzhr.exe\"" /f
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    PID:2856
- C:\Users\Admin\2509819211\2509819211.exe
  "C:\Users\Admin\2509819211\2509819211.exe" f
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Modifies Control Panel
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2904
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /f /im taskmgr.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2680
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /f /im taskmgr.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1132
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /f /im taskmgr.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2676
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /f /im taskmgr.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2728
- C:\Windows\SysWOW64\shutdown.exe
  "C:\Windows\System32\shutdown.exe" /r /f /t 4
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2740

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:1720

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
1⤵
PID:1420

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\2509819211\2509819211.exe

Filesize
72KB

MD5
8ce930987752f9790864543b6da34317

SHA1
7d89ae64e1dae59e8e85749b875aa712a4fc5e36

SHA256
5bce08b97565564ccdebec5b9c45ac680e0b3f01ddde2461f1dff4a9bbe50836

SHA512
456c1eb90d51145a785ee47c15d49b0bc9ce9a14f636bbac69e4df19fb2ab8b6e4f785657797042561e0d12e237fc223537220493d9a4ef3f1b29cda373fb65d

Download Submit
memory/2440-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2440-2-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2440-424-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2904-18-0x00000000000E0000-0x00000000000E1000-memory.dmp

Filesize
4KB

Download
memory/2904-19-0x00000000000E0000-0x00000000000E1000-memory.dmp

Filesize
4KB

Download
memory/2904-20-0x00000000000E0000-0x00000000000E1000-memory.dmp

Filesize
4KB

Download
memory/2904-17-0x00000000000F0000-0x00000000000F1000-memory.dmp

Filesize
4KB

Download
memory/2904-15-0x00000000000F0000-0x00000000000F1000-memory.dmp

Filesize
4KB

Download
memory/2904-14-0x00000000000E0000-0x00000000000E1000-memory.dmp

Filesize
4KB

Download
memory/2904-13-0x00000000000E0000-0x00000000000E1000-memory.dmp

Filesize
4KB

Download
memory/2904-12-0x00000000000E0000-0x00000000000E1000-memory.dmp

Filesize
4KB

Download
memory/2904-11-0x00000000000E0000-0x00000000000E1000-memory.dmp

Filesize
4KB

Download
memory/2904-21-0x00000000000E0000-0x00000000000E1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads