ec9e28904dd0bc1937c77026ce1bbfd56409924609c5fab5ba9e302b8badd339

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
13-01-2024 07:58

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General

Target

5866ab346ab0b685d4891c6af4d1e468.exe
Size

13KB
MD5

5866ab346ab0b685d4891c6af4d1e468
SHA1

c767d05477996fa434fb4941ac86f56716fb1a96
SHA256

ec9e28904dd0bc1937c77026ce1bbfd56409924609c5fab5ba9e302b8badd339
SHA512

329b26d5293b7007d125326a840300fb1e3a5ba4e2a3e82ba64ada8fcd473ee14ed5a79cbeb6d82e5ab4a33676400f8680af10e04b4fcb56791e275572a42388
SSDEEP

192:/yZ7O9wsUSMHIS61iRgXZm2EtpuI9lKu8a8K8wxXKjLQE2YQSk9ST+:27/1HV6Yuc2qbK/fwxX8LqVC+

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
1660	docyanxk.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3192-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/files/0x00030000000226fd-5.dat	upx
behavioral2/memory/3192-8-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/memory/1660-10-0x0000000000400000-0x000000000040F000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\docyanx.dll	5866ab346ab0b685d4891c6af4d1e468.exe
File created	C:\Windows\SysWOW64\docyanxk.exe	5866ab346ab0b685d4891c6af4d1e468.exe
File opened for modification	C:\Windows\SysWOW64\docyanxk.exe	5866ab346ab0b685d4891c6af4d1e468.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3192	5866ab346ab0b685d4891c6af4d1e468.exe
3192	5866ab346ab0b685d4891c6af4d1e468.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3192 wrote to memory of 1660	3192	5866ab346ab0b685d4891c6af4d1e468.exe	95
PID 3192 wrote to memory of 1660	3192	5866ab346ab0b685d4891c6af4d1e468.exe	95
PID 3192 wrote to memory of 1660	3192	5866ab346ab0b685d4891c6af4d1e468.exe	95
PID 3192 wrote to memory of 4204	3192	5866ab346ab0b685d4891c6af4d1e468.exe	97
PID 3192 wrote to memory of 4204	3192	5866ab346ab0b685d4891c6af4d1e468.exe	97
PID 3192 wrote to memory of 4204	3192	5866ab346ab0b685d4891c6af4d1e468.exe	97

C:\Users\Admin\AppData\Local\Temp\5866ab346ab0b685d4891c6af4d1e468.exe
"C:\Users\Admin\AppData\Local\Temp\5866ab346ab0b685d4891c6af4d1e468.exe"
1⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3192
- C:\Windows\SysWOW64\docyanxk.exe
  C:\Windows\system32\docyanxk.exe ˜‰
  2⤵
  - Executes dropped EXE
  PID:1660
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\5866ab346ab0b685d4891c6af4d1e468.exe.bat
  2⤵
  PID:4204

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:\Users\Admin\AppData\Local\Temp\5866ab346ab0b685d4891c6af4d1e468.exe.bat

Filesize
182B

MD5
25a62dd6c62e3b2c315269295d6e6937

SHA1
fe1c49aa0edd38f52a615dc7ca3ae3c64ba66c32

SHA256
b0169b7b185c0a04d71b4520f1f0d321621d9946c7b423a9b326a410845a6bc7

SHA512
34b9e4627f4f615a8047317a312718b6ab097d17d76f5be3d06a6860bed8e41403b5980958737ec51d323ccfdf662940adb7e7caba08bd39fdf1364159cfcc8f

Download Submit
C:\Windows\SysWOW64\docyanxk.exe

Filesize
13KB

MD5
5866ab346ab0b685d4891c6af4d1e468

SHA1
c767d05477996fa434fb4941ac86f56716fb1a96

SHA256
ec9e28904dd0bc1937c77026ce1bbfd56409924609c5fab5ba9e302b8badd339

SHA512
329b26d5293b7007d125326a840300fb1e3a5ba4e2a3e82ba64ada8fcd473ee14ed5a79cbeb6d82e5ab4a33676400f8680af10e04b4fcb56791e275572a42388

Download Submit
memory/1660-10-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3192-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3192-8-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download