3aed9aa9f38d353c9f18872f45b0eefc56f0a72cfde0db9d221da13e3e743fc7

Analysis

max time kernel
45s
max time network
141s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
01/12/2022, 10:48

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General

Target

3aed9aa9f38d353c9f18872f45b0eefc56f0a72cfde0db9d221da13e3e743fc7.exe
Size

219KB
MD5

f723e2dbd15f6a79fa1697bb08e39c80
SHA1

a3b738b50e1bf199ea2bb80d9bbe79b9e6df7bc1
SHA256

3aed9aa9f38d353c9f18872f45b0eefc56f0a72cfde0db9d221da13e3e743fc7
SHA512

9db8956228724b22afe5863ed6c843fe32ea54a8bc10912931508a777b075c72b055a8297c2b5e19b1e9156002772ca8e1fada9785a2c2dd7130b2b48ca1eb99
SSDEEP

3072:oiVZBM1JrvMALni0db/WJIV133rYIjTKEJV/R6xEjWswRdpK:oiV3M7tO0BWuVHj2EItHp

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1544	jjruejn.exe

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\PROGRA~3\Mozilla\jjruejn.exe	3aed9aa9f38d353c9f18872f45b0eefc56f0a72cfde0db9d221da13e3e743fc7.exe
File created	C:\PROGRA~3\Mozilla\segfnra.dll	jjruejn.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1492	3aed9aa9f38d353c9f18872f45b0eefc56f0a72cfde0db9d221da13e3e743fc7.exe
1544	jjruejn.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 276 wrote to memory of 1544	276	taskeng.exe	28
PID 276 wrote to memory of 1544	276	taskeng.exe	28
PID 276 wrote to memory of 1544	276	taskeng.exe	28
PID 276 wrote to memory of 1544	276	taskeng.exe	28

C:\Users\Admin\AppData\Local\Temp\3aed9aa9f38d353c9f18872f45b0eefc56f0a72cfde0db9d221da13e3e743fc7.exe
"C:\Users\Admin\AppData\Local\Temp\3aed9aa9f38d353c9f18872f45b0eefc56f0a72cfde0db9d221da13e3e743fc7.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of UnmapMainImage
PID:1492

C:\Windows\system32\taskeng.exe
taskeng.exe {56019283-6A09-4C33-82F5-9620522016AA} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:276
- C:\PROGRA~3\Mozilla\jjruejn.exe
  C:\PROGRA~3\Mozilla\jjruejn.exe -npivonl
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of UnmapMainImage
  PID:1544

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\PROGRA~3\Mozilla\jjruejn.exe

Filesize
219KB

MD5
160092b416d00ce30c24bfd180048ce2

SHA1
9b5e265f6f69585574a47071fb58a7a2484860b5

SHA256
af3960018b92f162fd4086133dd42fcd21aa564f20e2b632b63b458b9150b29b

SHA512
b4b2777b8611fbf73f8e95b6eb072dad83a7526e06ed9166cc44ad7676a3dafdb4803f22786d9b8aa272d1d49d7898835c0b275d403731d0cbafaf768b8eed2d

Download Submit
C:\PROGRA~3\Mozilla\jjruejn.exe

Filesize
219KB

MD5
160092b416d00ce30c24bfd180048ce2

SHA1
9b5e265f6f69585574a47071fb58a7a2484860b5

SHA256
af3960018b92f162fd4086133dd42fcd21aa564f20e2b632b63b458b9150b29b

SHA512
b4b2777b8611fbf73f8e95b6eb072dad83a7526e06ed9166cc44ad7676a3dafdb4803f22786d9b8aa272d1d49d7898835c0b275d403731d0cbafaf768b8eed2d

Download Submit
memory/1492-54-0x0000000076BA1000-0x0000000076BA3000-memory.dmp

Filesize
8KB

Download
memory/1492-55-0x0000000000250000-0x00000000002AB000-memory.dmp

Filesize
364KB

Download
memory/1492-56-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/1492-57-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/1544-62-0x0000000000390000-0x00000000003EB000-memory.dmp

Filesize
364KB

Download
memory/1544-63-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/1544-64-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download