0879a3ed8c782482a41fb2e2af8fd2de5708ebdbadb153a69307c48e5052dbf8

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
30/12/2023, 12:43

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General

Target

18e52ac1749ec4af2282cc4e0d137915.exe
Size

12KB
MD5

18e52ac1749ec4af2282cc4e0d137915
SHA1

5b87394afe3d72de26cd7e04f9396745006766df
SHA256

0879a3ed8c782482a41fb2e2af8fd2de5708ebdbadb153a69307c48e5052dbf8
SHA512

80ef2e08753cad3e709fa3986b16ce58b10f7563c3fa4185ef652e61a4ed5ee205f041dbbe660243dece4a43395e724641a2bf0eb87dcc103fa4d7bce3e98b68
SSDEEP

192:ROn5Hvx9kUYCh3ZF5Lrrl4aSm0d8etJ4arw7Y0wkm6rcgx6OsmjoNL92CsanbIQy:c5Hvx9kUlh3ZF5Lr2axWiJcgx6OsmjJP

Score

8^/10

persistence upx

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

Executes dropped EXE 1 IoCs

pid	Process
512	fliecodsk.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3832-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/memory/512-7-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/memory/3832-6-0x0000000000400000-0x000000000040F000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\fliecods.dll	18e52ac1749ec4af2282cc4e0d137915.exe
File created	C:\Windows\SysWOW64\fliecodsk.exe	18e52ac1749ec4af2282cc4e0d137915.exe
File opened for modification	C:\Windows\SysWOW64\fliecodsk.exe	18e52ac1749ec4af2282cc4e0d137915.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3832 wrote to memory of 512	3832	18e52ac1749ec4af2282cc4e0d137915.exe	20
PID 3832 wrote to memory of 512	3832	18e52ac1749ec4af2282cc4e0d137915.exe	20
PID 3832 wrote to memory of 512	3832	18e52ac1749ec4af2282cc4e0d137915.exe	20
PID 3832 wrote to memory of 628	3832	18e52ac1749ec4af2282cc4e0d137915.exe	104
PID 3832 wrote to memory of 628	3832	18e52ac1749ec4af2282cc4e0d137915.exe	104
PID 3832 wrote to memory of 628	3832	18e52ac1749ec4af2282cc4e0d137915.exe	104

C:\Users\Admin\AppData\Local\Temp\18e52ac1749ec4af2282cc4e0d137915.exe
"C:\Users\Admin\AppData\Local\Temp\18e52ac1749ec4af2282cc4e0d137915.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:3832
- C:\Windows\SysWOW64\fliecodsk.exe
  C:\Windows\system32\fliecodsk.exe ˜‰
  2⤵
  - Executes dropped EXE
  PID:512
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\18e52ac1749ec4af2282cc4e0d137915.exe.bat
  2⤵
  PID:628

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\18e52ac1749ec4af2282cc4e0d137915.exe.bat

Filesize
182B

MD5
3d0b6c6556e67e18ed0b6c33c346e764

SHA1
3d85d6d3eb1a539a690286326366781730b9be62

SHA256
0216ff72a6ce51bc5d1e0ae28e68bf4fad833f954ff8a015c76101e953ea0e2e

SHA512
2667268de0549014179f8a24568cc9426eaa153de5a539ee9c39fbc0fe8ec453cf2eeb3c6017d70dc5e1f220ef8a6ef7903cd9ef2570bb0259bc73d58e413139

Download Submit
memory/512-7-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3832-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3832-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download