a48751cdbe7b05295b19256e4b204b3fafb63ff965496877c374fea12152c9a5

Analysis

max time kernel
149s
max time network
120s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
30/12/2023, 12:26

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

187d609614e06a588697e42b20aa56b3.exe
Size

20KB
MD5

187d609614e06a588697e42b20aa56b3
SHA1

a44accc08f7b5784f829012fadf0b56ace989f31
SHA256

a48751cdbe7b05295b19256e4b204b3fafb63ff965496877c374fea12152c9a5
SHA512

a0504ece3c57bc02ddd9a9bec1396a633d24aaa55e3cda5fa96ee84204123674ee88559f98acd673cac257a1f76dd758ffd2aa8da741d053439da2bed5cf27bc
SSDEEP

384:h50odYm0zDb12kmpvwG5gech7ad+Uv44AxY/1IlrTnaj/oVZYv93P:wo50zgk8vwG5gxh709vhvyl/+93P

Score

7^/10

persistence

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
1984	187d609614e06a588697e42b20aa56b3.exe

Adds Run key to start application 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\RUN\rufnpnpn = "C:\\Windows\\unnnnjoa.exe"	187d609614e06a588697e42b20aa56b3.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\tfenfpej.dll	187d609614e06a588697e42b20aa56b3.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\unnnnjoa.exe	187d609614e06a588697e42b20aa56b3.exe
File opened for modification	C:\Windows\unnnnjoa.exe	187d609614e06a588697e42b20aa56b3.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1984	187d609614e06a588697e42b20aa56b3.exe
1984	187d609614e06a588697e42b20aa56b3.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1984	187d609614e06a588697e42b20aa56b3.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 1220	1984	187d609614e06a588697e42b20aa56b3.exe	21
PID 1984 wrote to memory of 1220	1984	187d609614e06a588697e42b20aa56b3.exe	21
PID 1984 wrote to memory of 1220	1984	187d609614e06a588697e42b20aa56b3.exe	21
PID 1984 wrote to memory of 1220	1984	187d609614e06a588697e42b20aa56b3.exe	21
PID 1984 wrote to memory of 1220	1984	187d609614e06a588697e42b20aa56b3.exe	21
PID 1984 wrote to memory of 1220	1984	187d609614e06a588697e42b20aa56b3.exe	21
PID 1984 wrote to memory of 1220	1984	187d609614e06a588697e42b20aa56b3.exe	21
PID 1984 wrote to memory of 1220	1984	187d609614e06a588697e42b20aa56b3.exe	21
PID 1984 wrote to memory of 1220	1984	187d609614e06a588697e42b20aa56b3.exe	21
PID 1984 wrote to memory of 1220	1984	187d609614e06a588697e42b20aa56b3.exe	21

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1220
- C:\Users\Admin\AppData\Local\Temp\187d609614e06a588697e42b20aa56b3.exe
  "C:\Users\Admin\AppData\Local\Temp\187d609614e06a588697e42b20aa56b3.exe"
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - Drops file in System32 directory
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1984

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

Replay Monitor

Loading Replay Monitor...

Downloads

\Windows\SysWOW64\tfenfpej.dll

Filesize
30KB

MD5
93328961479654346bfa39bc8da517ab

SHA1
9ffbb1bc204403276b471580f93b8c777bdea994

SHA256
b37a49814ce6194977c337b2b07acce9e4060a14a9f1fe3cff987bc6539b41ce

SHA512
8901521e2b3d0671e9d9c8c7328d472f552f04be59280f8516be7974a7082ddc7fd9c0d82b61cb79032e5d7ee56ad85d4276f6e13c8417a89ce5dc2c721f69c3

Download Submit
memory/1220-2-0x00000000024B0000-0x00000000024B1000-memory.dmp

Filesize
4KB

Download
memory/1984-8-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/1984-40-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/1984-36-0x0000000000340000-0x0000000000341000-memory.dmp

Filesize
4KB

Download