7bb292b78264b9e35eeea664767422b373bf40fab25893172195fd65dc8e7bd5

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
07/03/2024, 09:39

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General

Target

b86bcfbb39d8d5925750b4255f104661.exe
Size

15KB
MD5

b86bcfbb39d8d5925750b4255f104661
SHA1

f4b7661e3c914d2a4458def16757bb02bdc29373
SHA256

7bb292b78264b9e35eeea664767422b373bf40fab25893172195fd65dc8e7bd5
SHA512

70a95c56187d052ac3cd12d3646b98769d28e0ea5c8dcc850283117b43fba0d782ac22f9dc94ae8e8c015e9e65525770474e28473771e7ca17c5825cbfb85d80
SSDEEP

384:G5g3PLUTLk/FG5ddtacu3firPHqP3IS9dg+cluZv9+A:+g3PLR/FDnPqPKP3If+cc1

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
1988	qanhllaok.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4744-0-0x0000000000400000-0x0000000000410000-memory.dmp	upx
behavioral2/files/0x000800000002320b-4.dat	upx
behavioral2/memory/4744-6-0x0000000000400000-0x0000000000410000-memory.dmp	upx
behavioral2/memory/1988-7-0x0000000000400000-0x0000000000410000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\qanhllao.dll	b86bcfbb39d8d5925750b4255f104661.exe
File created	C:\Windows\SysWOW64\qanhllaok.exe	b86bcfbb39d8d5925750b4255f104661.exe
File opened for modification	C:\Windows\SysWOW64\qanhllaok.exe	b86bcfbb39d8d5925750b4255f104661.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4744 wrote to memory of 1988	4744	b86bcfbb39d8d5925750b4255f104661.exe	87
PID 4744 wrote to memory of 1988	4744	b86bcfbb39d8d5925750b4255f104661.exe	87
PID 4744 wrote to memory of 1988	4744	b86bcfbb39d8d5925750b4255f104661.exe	87
PID 4744 wrote to memory of 3232	4744	b86bcfbb39d8d5925750b4255f104661.exe	100
PID 4744 wrote to memory of 3232	4744	b86bcfbb39d8d5925750b4255f104661.exe	100
PID 4744 wrote to memory of 3232	4744	b86bcfbb39d8d5925750b4255f104661.exe	100

C:\Users\Admin\AppData\Local\Temp\b86bcfbb39d8d5925750b4255f104661.exe
"C:\Users\Admin\AppData\Local\Temp\b86bcfbb39d8d5925750b4255f104661.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4744
- C:\Windows\SysWOW64\qanhllaok.exe
  C:\Windows\system32\qanhllaok.exe ˜‰
  2⤵
  - Executes dropped EXE
  PID:1988
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\b86bcfbb39d8d5925750b4255f104661.exe.bat
  2⤵
  PID:3232

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\b86bcfbb39d8d5925750b4255f104661.exe.bat

Filesize
182B

MD5
9c4aec83b2402748f400a5aeabd1a259

SHA1
90b05fe042143b2fbb5e8facdf7da29ec02e1903

SHA256
8ec7717d058f9d27124e5aa2d782744edd60a5117153790b6b134c559d5986b2

SHA512
f2c86dd7ac4366d20a9c8a82e58077abf294349cbd287ca4ee7b268ed05b35424c08d02af27c9ab7736adeed0afd4e6c9c31126910f91fe72e8f696f602d8b11

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

Filesize
15KB

MD5
b86bcfbb39d8d5925750b4255f104661

SHA1
f4b7661e3c914d2a4458def16757bb02bdc29373

SHA256
7bb292b78264b9e35eeea664767422b373bf40fab25893172195fd65dc8e7bd5

SHA512
70a95c56187d052ac3cd12d3646b98769d28e0ea5c8dcc850283117b43fba0d782ac22f9dc94ae8e8c015e9e65525770474e28473771e7ca17c5825cbfb85d80

Download Submit
memory/1988-7-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/4744-0-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/4744-6-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download