f6b64431b2de8c29d22aa58c2a98460f32c35e704f6598382a401e9cdd8c50bb

Analysis

max time kernel
139s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26/01/2024, 12:50

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General

Target

7767584620e59e05a3ae46a34b4d56f6.exe
Size

236KB
MD5

7767584620e59e05a3ae46a34b4d56f6
SHA1

cd7c8823a74fa3ad6e21b111599f2ac474e8f5c9
SHA256

f6b64431b2de8c29d22aa58c2a98460f32c35e704f6598382a401e9cdd8c50bb
SHA512

08964a1687cf9c7f7522d25d4423c056063654c5c4f76e95d7a09f58f57640d92defe638ec66936ca76c4c2788f57333915fbefd825e7a64a54e86eda3433c9d
SSDEEP

3072:SMW7LAAxh6Xm5wx271h6yAZLUXGvwmvs/2BL9:SMK0U6XwP71h6ykocw8

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
3308	REGNETJO.EXE
4104	REGNETJO.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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Regnetjo = "C:\\WINDOWS\\SYSTEM32\\REGNETJO.EXE"	7767584620e59e05a3ae46a34b4d56f6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunServices\Regnetjo = "C:\\WINDOWS\\SYSTEM32\\REGNETJO.EXE"	7767584620e59e05a3ae46a34b4d56f6.exe

Drops file in System32 directory 8 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\MSWINSCK.OCX	REGNETJO.EXE
File opened for modification	C:\Windows\SysWOW64\RICHTX32.OCX	REGNETJO.EXE
File opened for modification	C:\WINDOWS\SysWOW64\REGNETJO.EXE	7767584620e59e05a3ae46a34b4d56f6.exe
File created	C:\WINDOWS\SysWOW64\REGNETJO.EXE	7767584620e59e05a3ae46a34b4d56f6.exe
File opened for modification	C:\Windows\SysWOW64\MSWINSCK.OCX	7767584620e59e05a3ae46a34b4d56f6.exe
File opened for modification	C:\Windows\SysWOW64\RICHTX32.OCX	7767584620e59e05a3ae46a34b4d56f6.exe
File opened for modification	C:\WINDOWS\SysWOW64\REGNETJO.EXE	REGNETJO.EXE
File created	C:\WINDOWS\SysWOW64\REGNETJO.EXE	REGNETJO.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
4796	7767584620e59e05a3ae46a34b4d56f6.exe
3308	REGNETJO.EXE
4104	REGNETJO.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4796 wrote to memory of 3308	4796	7767584620e59e05a3ae46a34b4d56f6.exe	89
PID 4796 wrote to memory of 3308	4796	7767584620e59e05a3ae46a34b4d56f6.exe	89
PID 4796 wrote to memory of 3308	4796	7767584620e59e05a3ae46a34b4d56f6.exe	89
PID 3308 wrote to memory of 4104	3308	REGNETJO.EXE	90
PID 3308 wrote to memory of 4104	3308	REGNETJO.EXE	90
PID 3308 wrote to memory of 4104	3308	REGNETJO.EXE	90

C:\Users\Admin\AppData\Local\Temp\7767584620e59e05a3ae46a34b4d56f6.exe
"C:\Users\Admin\AppData\Local\Temp\7767584620e59e05a3ae46a34b4d56f6.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4796
- C:\WINDOWS\SysWOW64\REGNETJO.EXE
  "C:\WINDOWS\SYSTEM32\REGNETJO.EXE" C:\USERS\ADMIN\APPDATA\LOCAL\TEMP\7767584620E59E05A3AE46A34B4D56F6.EXE
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3308
- - C:\WINDOWS\SysWOW64\REGNETJO.EXE
    "C:\WINDOWS\SYSTEM32\REGNETJO.EXE" C:\WINDOWS\SYSWOW64\REGNETJO.EXE
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    PID:4104

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

C:\Windows\SysWOW64\REGNETJO.EXE

Filesize
236KB

MD5
7767584620e59e05a3ae46a34b4d56f6

SHA1
cd7c8823a74fa3ad6e21b111599f2ac474e8f5c9

SHA256
f6b64431b2de8c29d22aa58c2a98460f32c35e704f6598382a401e9cdd8c50bb

SHA512
08964a1687cf9c7f7522d25d4423c056063654c5c4f76e95d7a09f58f57640d92defe638ec66936ca76c4c2788f57333915fbefd825e7a64a54e86eda3433c9d

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads