5c63933553e1452d634beb2b295333e4db5742e571322d823648d4e5c94b2828

Analysis

max time kernel
150s
max time network
146s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 06:13

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General

Target

7fb519a181f51d55be0957d1753891e1071649a1689db7752d9d0c64707f031c.exe
Size

183KB
MD5

e4c82a17f7fdd8fdaa1d22b2dfb13015
SHA1

311e63512d52f64e4a2d6bf00c5b0c10dc3ee548
SHA256

7fb519a181f51d55be0957d1753891e1071649a1689db7752d9d0c64707f031c
SHA512

cd2f4e5422200e8f2449d495ab8d87385a142506509a3f799778def0955967a5c4551f7edb68de5fc3021bf8b60740e6068857111248fc6602f8f652c536c1a4
SSDEEP

3072:yx+a6Cn3qwPkyAe3+rQN9qjYeuPD0yA3uWljCDtF5U5C6gHls/59b/nd:op3qwxveQJeb5eWlB5C/6zbf

Score

10^/10

persistence privilege_escalation

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Windows\\System32\\userinit.exe,C:\\Program Files\\nvidia.exe"	7fb519a181f51d55be0957d1753891e1071649a1689db7752d9d0c64707f031c.exe

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

Executes dropped EXE 1 IoCs

pid	Process
2940	nvidia.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\nvidia.exe	nvidia.exe
File created	C:\Program Files\nvidia.exe	7fb519a181f51d55be0957d1753891e1071649a1689db7752d9d0c64707f031c.exe
File opened for modification	C:\Program Files\nvidia.exe	7fb519a181f51d55be0957d1753891e1071649a1689db7752d9d0c64707f031c.exe

Drops file in Windows directory 5 IoCs

description	ioc	Process
File created	C:\Windows\Runtime Broker.exe	7fb519a181f51d55be0957d1753891e1071649a1689db7752d9d0c64707f031c.exe
File opened for modification	C:\Windows\Runtime Broker.exe	7fb519a181f51d55be0957d1753891e1071649a1689db7752d9d0c64707f031c.exe
File created	C:\Windows\xdwd.dll	7fb519a181f51d55be0957d1753891e1071649a1689db7752d9d0c64707f031c.exe
File opened for modification	C:\Windows\xdwd.dll	7fb519a181f51d55be0957d1753891e1071649a1689db7752d9d0c64707f031c.exe
File opened for modification	C:\Windows\Runtime Broker.exe	nvidia.exe

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

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2652	schtasks.exe
2448	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2940	nvidia.exe
1664	taskeng.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1892	7fb519a181f51d55be0957d1753891e1071649a1689db7752d9d0c64707f031c.exe
Token: SeDebugPrivilege	2940	nvidia.exe
Token: SeIncBasePriorityPrivilege	2940	nvidia.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1892 wrote to memory of 2704	1892	7fb519a181f51d55be0957d1753891e1071649a1689db7752d9d0c64707f031c.exe	29
PID 1892 wrote to memory of 2704	1892	7fb519a181f51d55be0957d1753891e1071649a1689db7752d9d0c64707f031c.exe	29
PID 1892 wrote to memory of 2704	1892	7fb519a181f51d55be0957d1753891e1071649a1689db7752d9d0c64707f031c.exe	29
PID 1892 wrote to memory of 2712	1892	7fb519a181f51d55be0957d1753891e1071649a1689db7752d9d0c64707f031c.exe	30
PID 1892 wrote to memory of 2712	1892	7fb519a181f51d55be0957d1753891e1071649a1689db7752d9d0c64707f031c.exe	30
PID 1892 wrote to memory of 2712	1892	7fb519a181f51d55be0957d1753891e1071649a1689db7752d9d0c64707f031c.exe	30
PID 2712 wrote to memory of 2652	2712	cmd.exe	33
PID 2712 wrote to memory of 2652	2712	cmd.exe	33
PID 2712 wrote to memory of 2652	2712	cmd.exe	33
PID 1892 wrote to memory of 2812	1892	7fb519a181f51d55be0957d1753891e1071649a1689db7752d9d0c64707f031c.exe	34
PID 1892 wrote to memory of 2812	1892	7fb519a181f51d55be0957d1753891e1071649a1689db7752d9d0c64707f031c.exe	34
PID 1892 wrote to memory of 2812	1892	7fb519a181f51d55be0957d1753891e1071649a1689db7752d9d0c64707f031c.exe	34
PID 2812 wrote to memory of 2448	2812	cmd.exe	36
PID 2812 wrote to memory of 2448	2812	cmd.exe	36
PID 2812 wrote to memory of 2448	2812	cmd.exe	36
PID 1892 wrote to memory of 2940	1892	7fb519a181f51d55be0957d1753891e1071649a1689db7752d9d0c64707f031c.exe	37
PID 1892 wrote to memory of 2940	1892	7fb519a181f51d55be0957d1753891e1071649a1689db7752d9d0c64707f031c.exe	37
PID 1892 wrote to memory of 2940	1892	7fb519a181f51d55be0957d1753891e1071649a1689db7752d9d0c64707f031c.exe	37

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\7fb519a181f51d55be0957d1753891e1071649a1689db7752d9d0c64707f031c.exe
"C:\Users\Admin\AppData\Local\Temp\7fb519a181f51d55be0957d1753891e1071649a1689db7752d9d0c64707f031c.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1892
- C:\Windows\system32\CMD.exe
  "CMD" netsh firewall add allowedprogram "C:\Program Files\nvidia.exe" WindowsControl ENABLE & exit
  2⤵
  PID:2704
- C:\Windows\system32\cmd.exe
  "cmd" /c schtasks /create /f /sc minute /mo 1 /tn "Microsoft\Windows\WAppCrashNvTew" /tr "C:\Program Files\nvidia.exe" /RL HIGHEST & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2712
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc minute /mo 1 /tn "Microsoft\Windows\WAppCrashNvTew" /tr "C:\Program Files\nvidia.exe" /RL HIGHEST
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2652
- C:\Windows\system32\cmd.exe
  "cmd" /c schtasks /create /f /sc minute /mo 30 /tn "Microsoft\MachineCore" /tr "C:\Windows\Runtime Broker.exe" /RL HIGHEST & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2812
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc minute /mo 30 /tn "Microsoft\MachineCore" /tr "C:\Windows\Runtime Broker.exe" /RL HIGHEST
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2448
- C:\Program Files\nvidia.exe
  "C:\Program Files\nvidia.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2940

C:\Windows\system32\taskeng.exe
taskeng.exe {FD72AF85-A193-4BFF-890F-632B81CDA3C7} S-1-5-21-4177215427-74451935-3209572229-1000:JSMURNPT\Admin:Interactive:[1]
1⤵
- Suspicious behavior: EnumeratesProcesses
PID:1664

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files\nvidia.exe

Filesize
183KB

MD5
e4c82a17f7fdd8fdaa1d22b2dfb13015

SHA1
311e63512d52f64e4a2d6bf00c5b0c10dc3ee548

SHA256
7fb519a181f51d55be0957d1753891e1071649a1689db7752d9d0c64707f031c

SHA512
cd2f4e5422200e8f2449d495ab8d87385a142506509a3f799778def0955967a5c4551f7edb68de5fc3021bf8b60740e6068857111248fc6602f8f652c536c1a4

Download Submit
C:\Windows\xdwd.dll

Filesize
136KB

MD5
16e5a492c9c6ae34c59683be9c51fa31

SHA1
97031b41f5c56f371c28ae0d62a2df7d585adaba

SHA256
35c8d022e1d917f1aabdceae98097ccc072161b302f84c768ca63e4b32ac2b66

SHA512
20fd369172ef5e3e2fde388666b42e8fe5f0c2bfa338c0345f45e98af6561a249ba3ecc48c3f16efcc73f02ecb67b3ddb1e2e8f0e77d18fa00ac34e6379e50b6

Download Submit
memory/1664-54-0x000007FEF7920000-0x000007FEF7942000-memory.dmp

Filesize
136KB

Download
memory/1664-64-0x000007FEF7920000-0x000007FEF7942000-memory.dmp

Filesize
136KB

Download
memory/1892-0-0x000007FEF6163000-0x000007FEF6164000-memory.dmp

Filesize
4KB

Download
memory/1892-1-0x00000000008E0000-0x0000000000914000-memory.dmp

Filesize
208KB

Download
memory/2940-49-0x0000000001330000-0x0000000001364000-memory.dmp

Filesize
208KB

Download
memory/2940-51-0x000007FEF7920000-0x000007FEF7942000-memory.dmp

Filesize
136KB

Download
memory/2940-53-0x000007FEF7920000-0x000007FEF7942000-memory.dmp

Filesize
136KB

Download