939ed73bd36d9677191f2fb7987885e838b32b9b8c789e2a22bb5d64ad63e75b

Analysis

max time kernel
150s
max time network
21s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
19/09/2024, 03:46

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General

Target

939ed73bd36d9677191f2fb7987885e838b32b9b8c789e2a22bb5d64ad63e75bN.exe
Size

77KB
MD5

10ac20988a4e81d18380114e62d1f050
SHA1

00fb2a4683519f0b2183cb62af8e6242ef1b7c8e
SHA256

939ed73bd36d9677191f2fb7987885e838b32b9b8c789e2a22bb5d64ad63e75b
SHA512

e8e107faab81cc3459c2f877172fa0ed0a3ce5ca821ec911d637b343c7f6aa2bb878cfb3726772b4b8e76021fc11ad04be4c47f0f7fdffd455b73bfd8173d590
SSDEEP

1536:0vbbcxMu15Bx8pEttgdO/mXpgWXOJgQmmogDcMH5fCVsJVafuegWXAi+oX9tWV0x:ybbcxx15Bx8pEttgdO/mXpgWXOJgQmmi

Score

10^/10

discovery evasion persistence

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	pioupo.exe

Executes dropped EXE 1 IoCs

pid	Process
1040	pioupo.exe

Loads dropped DLL 2 IoCs

pid	Process
2100	939ed73bd36d9677191f2fb7987885e838b32b9b8c789e2a22bb5d64ad63e75bN.exe
2100	939ed73bd36d9677191f2fb7987885e838b32b9b8c789e2a22bb5d64ad63e75bN.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\pioupo = "C:\\Users\\Admin\\pioupo.exe"	pioupo.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	939ed73bd36d9677191f2fb7987885e838b32b9b8c789e2a22bb5d64ad63e75bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pioupo.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe
1040	pioupo.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2100	939ed73bd36d9677191f2fb7987885e838b32b9b8c789e2a22bb5d64ad63e75bN.exe
1040	pioupo.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 1040	2100	939ed73bd36d9677191f2fb7987885e838b32b9b8c789e2a22bb5d64ad63e75bN.exe	29
PID 2100 wrote to memory of 1040	2100	939ed73bd36d9677191f2fb7987885e838b32b9b8c789e2a22bb5d64ad63e75bN.exe	29
PID 2100 wrote to memory of 1040	2100	939ed73bd36d9677191f2fb7987885e838b32b9b8c789e2a22bb5d64ad63e75bN.exe	29
PID 2100 wrote to memory of 1040	2100	939ed73bd36d9677191f2fb7987885e838b32b9b8c789e2a22bb5d64ad63e75bN.exe	29
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28
PID 1040 wrote to memory of 2100	1040	pioupo.exe	28

C:\Users\Admin\AppData\Local\Temp\939ed73bd36d9677191f2fb7987885e838b32b9b8c789e2a22bb5d64ad63e75bN.exe
"C:\Users\Admin\AppData\Local\Temp\939ed73bd36d9677191f2fb7987885e838b32b9b8c789e2a22bb5d64ad63e75bN.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Users\Admin\pioupo.exe
  "C:\Users\Admin\pioupo.exe"
  2⤵
  - Modifies visiblity of hidden/system files in Explorer
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1040

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

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\pioupo.exe

Filesize
77KB

MD5
a77c0002a3047a4c055849d0c3f6a12c

SHA1
9512d9684501ed885c816e9f371e31c831d3b4b9

SHA256
fd1cd1a89d380fadfabc328a6545b8d7d1e75d7dfc065fb59e0c88eb4e03c3cb

SHA512
777a6d89e24114739b1b7f35e6ab35a9fb70adbd1cea4b20e7011c8978dd7cce62e86ea5fa65f65a0046a280aa84f3422e5c0f383cce5986d7710cd609226bcc

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