0fae9132cc06644454acd27497e0024e2d0791010a8825f7983ee9e80f224de4

Analysis

max time kernel
151s
max time network
122s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
19/01/2024, 01:38

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General

Target

668f3687903216c2a12cc6fe4927730f.exe
Size

12KB
MD5

668f3687903216c2a12cc6fe4927730f
SHA1

b2baf2c4ca58dd1252305a645ad18fa7f626b809
SHA256

0fae9132cc06644454acd27497e0024e2d0791010a8825f7983ee9e80f224de4
SHA512

5fb217fb09d6cd77ddc38eaf0c5a333588fd22d2e62aa9d9551e3ac2dcbc2125b3a02dd3c0480fcb72361df706d192d27dd047afb66e93362845da2cf071338e
SSDEEP

192:cF/gTB1qgt/LBsgMUZAhQF7ZK5VrsOXlZE/WtlyETeTBMnsgel/krcaLA7Dq8:cF/g3RhLZGAVK3rsOXD1lyDTBJgelELU

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

Deletes itself 1 IoCs

pid	Process
2668	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2148	fliecodsk.exe

Loads dropped DLL 2 IoCs

pid	Process
2408	668f3687903216c2a12cc6fe4927730f.exe
2408	668f3687903216c2a12cc6fe4927730f.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2408-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/files/0x000b000000012267-3.dat	upx
behavioral1/memory/2408-4-0x0000000000230000-0x000000000023F000-memory.dmp	upx
behavioral1/memory/2148-12-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/memory/2408-13-0x0000000000400000-0x000000000040F000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\fliecods.dll	668f3687903216c2a12cc6fe4927730f.exe
File created	C:\Windows\SysWOW64\fliecodsk.exe	668f3687903216c2a12cc6fe4927730f.exe
File opened for modification	C:\Windows\SysWOW64\fliecodsk.exe	668f3687903216c2a12cc6fe4927730f.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2408 wrote to memory of 2148	2408	668f3687903216c2a12cc6fe4927730f.exe	28
PID 2408 wrote to memory of 2148	2408	668f3687903216c2a12cc6fe4927730f.exe	28
PID 2408 wrote to memory of 2148	2408	668f3687903216c2a12cc6fe4927730f.exe	28
PID 2408 wrote to memory of 2148	2408	668f3687903216c2a12cc6fe4927730f.exe	28
PID 2408 wrote to memory of 2668	2408	668f3687903216c2a12cc6fe4927730f.exe	29
PID 2408 wrote to memory of 2668	2408	668f3687903216c2a12cc6fe4927730f.exe	29
PID 2408 wrote to memory of 2668	2408	668f3687903216c2a12cc6fe4927730f.exe	29
PID 2408 wrote to memory of 2668	2408	668f3687903216c2a12cc6fe4927730f.exe	29

C:\Users\Admin\AppData\Local\Temp\668f3687903216c2a12cc6fe4927730f.exe
"C:\Users\Admin\AppData\Local\Temp\668f3687903216c2a12cc6fe4927730f.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2408
- C:\Windows\SysWOW64\fliecodsk.exe
  C:\Windows\system32\fliecodsk.exe ˜‰
  2⤵
  - Executes dropped EXE
  PID:2148
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\668f3687903216c2a12cc6fe4927730f.exe.bat
  2⤵
  - Deletes itself
  PID:2668

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\668f3687903216c2a12cc6fe4927730f.exe.bat

Filesize
182B

MD5
d9bd0418d526a0794b008bbacea5b947

SHA1
a8a85866dccc458474af8a5c815819279de82cb9

SHA256
231c1debd92e2eeddfb48505c4857d2d101fda8d85ab6f40785c8c9d4d65191b

SHA512
7659eeed5bae1add252664f69827a087e0ae842964079a6a54d5470f8d11fd9a613021f842586e96175ac8b792f475f02613a86d65a937be653b295706138423

Download Submit
\Windows\SysWOW64\fliecodsk.exe

Filesize
12KB

MD5
668f3687903216c2a12cc6fe4927730f

SHA1
b2baf2c4ca58dd1252305a645ad18fa7f626b809

SHA256
0fae9132cc06644454acd27497e0024e2d0791010a8825f7983ee9e80f224de4

SHA512
5fb217fb09d6cd77ddc38eaf0c5a333588fd22d2e62aa9d9551e3ac2dcbc2125b3a02dd3c0480fcb72361df706d192d27dd047afb66e93362845da2cf071338e

Download Submit
memory/2148-12-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2408-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2408-4-0x0000000000230000-0x000000000023F000-memory.dmp

Filesize
60KB

Download
memory/2408-11-0x0000000000230000-0x000000000023F000-memory.dmp

Filesize
60KB

Download
memory/2408-13-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2408-17-0x0000000000230000-0x000000000023F000-memory.dmp

Filesize
60KB

Download