23d7eba63f853c9ed95aada00631271222ca239284647e05124ff5730d858bc1

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
31/12/2023, 13:11

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General

Target

37673b553f082c50cbd267040e378842.exe
Size

192KB
MD5

37673b553f082c50cbd267040e378842
SHA1

d0a651ae29861d40df524212ba09271a41d579ab
SHA256

23d7eba63f853c9ed95aada00631271222ca239284647e05124ff5730d858bc1
SHA512

843581f72c3a6f72811c57062fa36fc2cfed35707989e1d0d4a3584738ffff6b6da462e5b02f466f60fd594998b8e3de188cd4b94ef14661e66a981a0331f036
SSDEEP

3072:wu8+8b1OBrpM3lt0bqO4deKIpS2Q9tC3UwtxaTSGzGXDzp8D8OJbhaDDe3oax:sOBr63cbqO40K394aTSGzGZ8ognYA

Score

10^/10

evasion persistence

Malware Config

Signatures

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

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	37673b553f082c50cbd267040e378842.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	guigi.exe

Executes dropped EXE 1 IoCs

pid	Process
1424	guigi.exe

Loads dropped DLL 2 IoCs

pid	Process
1984	37673b553f082c50cbd267040e378842.exe
1984	37673b553f082c50cbd267040e378842.exe

Adds Run key to start application 2 TTPs 51 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /n"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /e"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /i"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /P"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /m"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /Y"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /H"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /l"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /b"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /Z"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /L"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /h"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /V"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /c"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /N"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /M"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /a"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /Q"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /U"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /v"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /K"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /T"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /S"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /p"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /I"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /E"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /W"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /q"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /g"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /k"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /A"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /w"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /C"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /s"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /X"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /x"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /f"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /t"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /R"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /G"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /o"	37673b553f082c50cbd267040e378842.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /F"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /D"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /O"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /B"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /z"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /r"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /j"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /u"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /J"	guigi.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\guigi = "C:\\Users\\Admin\\guigi.exe /y"	guigi.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1984	37673b553f082c50cbd267040e378842.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe
1424	guigi.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1984	37673b553f082c50cbd267040e378842.exe
1424	guigi.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 1424	1984	37673b553f082c50cbd267040e378842.exe	28
PID 1984 wrote to memory of 1424	1984	37673b553f082c50cbd267040e378842.exe	28
PID 1984 wrote to memory of 1424	1984	37673b553f082c50cbd267040e378842.exe	28
PID 1984 wrote to memory of 1424	1984	37673b553f082c50cbd267040e378842.exe	28

C:\Users\Admin\AppData\Local\Temp\37673b553f082c50cbd267040e378842.exe
"C:\Users\Admin\AppData\Local\Temp\37673b553f082c50cbd267040e378842.exe"
1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1984
- C:\Users\Admin\guigi.exe
  "C:\Users\Admin\guigi.exe"
  2⤵
  - Modifies visiblity of hidden/system files in Explorer
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:1424

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\guigi.exe

Filesize
192KB

MD5
935ec1a1309114a591651764fa690494

SHA1
7c1b197c40bce6d0b6cd33b6d39c1931795f0dd7

SHA256
5cddac58e13b440927df4048719d875d501599cbb4cd1cfc97a0f054a7b4ee9d

SHA512
60035799f0251ef9d4e86993a4732cdfc812905cedc6df37a044a2fbc6c95b3ca6b7672d7558e185a797ffdde67dafeb8e606370f7cecfa536e05d3c9f386458

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