00f1e445dfcb8a2c7442f90e6c7927450e8689564c05f956e87f89bfdb814960

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
06-01-2024 11:02

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General

Target

46107a65f5b1aeea5cc6242f0fa7a5b0.exe
Size

14KB
MD5

46107a65f5b1aeea5cc6242f0fa7a5b0
SHA1

9f9a5a81c9d9a7c7b6ffb730e40b95258064f5b5
SHA256

00f1e445dfcb8a2c7442f90e6c7927450e8689564c05f956e87f89bfdb814960
SHA512

5dd4f991589fa109bbcd770d09dc2dd80b5db75e0d27d7611150f4761bd62acea052c0bd90ba0fd55e3c4b11657fa5293e2f58fc26c2298fed63b0fe3af4a214
SSDEEP

384:7ESUUuYvJZGu1qrGqOkONpTWk+s+czTZbPXlff8D:7GUbt1sG9zr+s+yTZDZUD

Score

10^/10

persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\certmgrkd.dll = "{9E8287B0-0F3A-48ae-99C5-A6E0AAC36BC5}"	46107a65f5b1aeea5cc6242f0fa7a5b0.exe

Deletes itself 1 IoCs

pid	Process
2548	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
1620	46107a65f5b1aeea5cc6242f0fa7a5b0.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\certmgrkd.tmp	46107a65f5b1aeea5cc6242f0fa7a5b0.exe
File opened for modification	C:\Windows\SysWOW64\certmgrkd.tmp	46107a65f5b1aeea5cc6242f0fa7a5b0.exe
File opened for modification	C:\Windows\SysWOW64\certmgrkd.nls	46107a65f5b1aeea5cc6242f0fa7a5b0.exe

Modifies registry class 4 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9E8287B0-0F3A-48ae-99C5-A6E0AAC36BC5}\InProcServer32\ThreadingModel = "Apartment"	46107a65f5b1aeea5cc6242f0fa7a5b0.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9E8287B0-0F3A-48ae-99C5-A6E0AAC36BC5}	46107a65f5b1aeea5cc6242f0fa7a5b0.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9E8287B0-0F3A-48ae-99C5-A6E0AAC36BC5}\InProcServer32	46107a65f5b1aeea5cc6242f0fa7a5b0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9E8287B0-0F3A-48ae-99C5-A6E0AAC36BC5}\InProcServer32\ = "C:\\Windows\\SysWow64\\certmgrkd.dll"	46107a65f5b1aeea5cc6242f0fa7a5b0.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1620	46107a65f5b1aeea5cc6242f0fa7a5b0.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1620	46107a65f5b1aeea5cc6242f0fa7a5b0.exe
1620	46107a65f5b1aeea5cc6242f0fa7a5b0.exe
1620	46107a65f5b1aeea5cc6242f0fa7a5b0.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1620 wrote to memory of 2548	1620	46107a65f5b1aeea5cc6242f0fa7a5b0.exe	29
PID 1620 wrote to memory of 2548	1620	46107a65f5b1aeea5cc6242f0fa7a5b0.exe	29
PID 1620 wrote to memory of 2548	1620	46107a65f5b1aeea5cc6242f0fa7a5b0.exe	29
PID 1620 wrote to memory of 2548	1620	46107a65f5b1aeea5cc6242f0fa7a5b0.exe	29

C:\Users\Admin\AppData\Local\Temp\46107a65f5b1aeea5cc6242f0fa7a5b0.exe
"C:\Users\Admin\AppData\Local\Temp\46107a65f5b1aeea5cc6242f0fa7a5b0.exe"
1⤵
- Adds autorun key to be loaded by Explorer.exe on startup
- Loads dropped DLL
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1620
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\8E1C.tmp.bat
  2⤵
  - Deletes itself
  PID:2548

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1620-8-0x0000000020000000-0x000000002006C000-memory.dmp

Filesize
432KB

Download
memory/1620-17-0x0000000020000000-0x000000002006C000-memory.dmp

Filesize
432KB

Download