guloader | 8450066748c90f306e28dee0fd262b9b1b8ed05ef40a8ee07b37bc6d0ce16764

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24-12-2024 01:14

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General

Target

ARAH BME SDN BHD INV STATEMENT.exe
Size

658KB
MD5

031bc337fabe49aac9c372f16825354c
SHA1

7abb57546b33f2c3f91b2cc182186b0ed21b9544
SHA256

8450066748c90f306e28dee0fd262b9b1b8ed05ef40a8ee07b37bc6d0ce16764
SHA512

6fadb85a17597377a3a0c7c5ccb3d376412281be0ee166a0726fbf0ca18e2336002ca1adcb0822f360cda67661c5a6d5464e47aa1ebe3432ff8f5110bc5f13e7
SSDEEP

12288:wYBmXiWKdcnBhdTjjnVc6TYIg742KaB4X+IOylpnSw:wYMyDeVfBcRIg74a48yh

Score

10^/10

guloader discovery downloader persistence upx

Malware Config

Signatures

Guloader family
guloader
Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader

Loads dropped DLL 1 IoCs

pid	Process
3996	ARAH BME SDN BHD INV STATEMENT.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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Hente = "C:\\Users\\Admin\\AppData\\Roaming\\Satinwood\\Sportswomanly.exe"	dxdiag.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
1504	dxdiag.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
3996	ARAH BME SDN BHD INV STATEMENT.exe
1504	dxdiag.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3996 set thread context of 1504	3996	ARAH BME SDN BHD INV STATEMENT.exe	97

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1504-21-0x0000000000400000-0x00000000005E4000-memory.dmp	upx

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Fonts\Rolff18\Eventyrligt135.ini	ARAH BME SDN BHD INV STATEMENT.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	ARAH BME SDN BHD INV STATEMENT.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dxdiag.exe

Suspicious behavior: MapViewOfSection 12 IoCs

pid	Process
3996	ARAH BME SDN BHD INV STATEMENT.exe
3996	ARAH BME SDN BHD INV STATEMENT.exe
3996	ARAH BME SDN BHD INV STATEMENT.exe
3996	ARAH BME SDN BHD INV STATEMENT.exe
3996	ARAH BME SDN BHD INV STATEMENT.exe
3996	ARAH BME SDN BHD INV STATEMENT.exe
3996	ARAH BME SDN BHD INV STATEMENT.exe
3996	ARAH BME SDN BHD INV STATEMENT.exe
3996	ARAH BME SDN BHD INV STATEMENT.exe
3996	ARAH BME SDN BHD INV STATEMENT.exe
3996	ARAH BME SDN BHD INV STATEMENT.exe
3996	ARAH BME SDN BHD INV STATEMENT.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1504	dxdiag.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 3996 wrote to memory of 2396	3996	ARAH BME SDN BHD INV STATEMENT.exe	84
PID 3996 wrote to memory of 2396	3996	ARAH BME SDN BHD INV STATEMENT.exe	84
PID 3996 wrote to memory of 2396	3996	ARAH BME SDN BHD INV STATEMENT.exe	84
PID 3996 wrote to memory of 1608	3996	ARAH BME SDN BHD INV STATEMENT.exe	85
PID 3996 wrote to memory of 1608	3996	ARAH BME SDN BHD INV STATEMENT.exe	85
PID 3996 wrote to memory of 1608	3996	ARAH BME SDN BHD INV STATEMENT.exe	85
PID 3996 wrote to memory of 2456	3996	ARAH BME SDN BHD INV STATEMENT.exe	86
PID 3996 wrote to memory of 2456	3996	ARAH BME SDN BHD INV STATEMENT.exe	86
PID 3996 wrote to memory of 2456	3996	ARAH BME SDN BHD INV STATEMENT.exe	86
PID 3996 wrote to memory of 1120	3996	ARAH BME SDN BHD INV STATEMENT.exe	87
PID 3996 wrote to memory of 1120	3996	ARAH BME SDN BHD INV STATEMENT.exe	87
PID 3996 wrote to memory of 1120	3996	ARAH BME SDN BHD INV STATEMENT.exe	87
PID 3996 wrote to memory of 880	3996	ARAH BME SDN BHD INV STATEMENT.exe	88
PID 3996 wrote to memory of 880	3996	ARAH BME SDN BHD INV STATEMENT.exe	88
PID 3996 wrote to memory of 880	3996	ARAH BME SDN BHD INV STATEMENT.exe	88
PID 3996 wrote to memory of 4744	3996	ARAH BME SDN BHD INV STATEMENT.exe	90
PID 3996 wrote to memory of 4744	3996	ARAH BME SDN BHD INV STATEMENT.exe	90
PID 3996 wrote to memory of 4744	3996	ARAH BME SDN BHD INV STATEMENT.exe	90
PID 3996 wrote to memory of 3004	3996	ARAH BME SDN BHD INV STATEMENT.exe	91
PID 3996 wrote to memory of 3004	3996	ARAH BME SDN BHD INV STATEMENT.exe	91
PID 3996 wrote to memory of 3004	3996	ARAH BME SDN BHD INV STATEMENT.exe	91
PID 3996 wrote to memory of 4068	3996	ARAH BME SDN BHD INV STATEMENT.exe	93
PID 3996 wrote to memory of 4068	3996	ARAH BME SDN BHD INV STATEMENT.exe	93
PID 3996 wrote to memory of 4068	3996	ARAH BME SDN BHD INV STATEMENT.exe	93
PID 3996 wrote to memory of 2080	3996	ARAH BME SDN BHD INV STATEMENT.exe	94
PID 3996 wrote to memory of 2080	3996	ARAH BME SDN BHD INV STATEMENT.exe	94
PID 3996 wrote to memory of 2080	3996	ARAH BME SDN BHD INV STATEMENT.exe	94
PID 3996 wrote to memory of 2092	3996	ARAH BME SDN BHD INV STATEMENT.exe	95
PID 3996 wrote to memory of 2092	3996	ARAH BME SDN BHD INV STATEMENT.exe	95
PID 3996 wrote to memory of 2092	3996	ARAH BME SDN BHD INV STATEMENT.exe	95
PID 3996 wrote to memory of 756	3996	ARAH BME SDN BHD INV STATEMENT.exe	96
PID 3996 wrote to memory of 756	3996	ARAH BME SDN BHD INV STATEMENT.exe	96
PID 3996 wrote to memory of 756	3996	ARAH BME SDN BHD INV STATEMENT.exe	96
PID 3996 wrote to memory of 1504	3996	ARAH BME SDN BHD INV STATEMENT.exe	97
PID 3996 wrote to memory of 1504	3996	ARAH BME SDN BHD INV STATEMENT.exe	97
PID 3996 wrote to memory of 1504	3996	ARAH BME SDN BHD INV STATEMENT.exe	97
PID 3996 wrote to memory of 1504	3996	ARAH BME SDN BHD INV STATEMENT.exe	97
PID 3996 wrote to memory of 1504	3996	ARAH BME SDN BHD INV STATEMENT.exe	97

C:\Users\Admin\AppData\Local\Temp\ARAH BME SDN BHD INV STATEMENT.exe
"C:\Users\Admin\AppData\Local\Temp\ARAH BME SDN BHD INV STATEMENT.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3996
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Users\Admin\AppData\Local\Temp\ARAH BME SDN BHD INV STATEMENT.exe"
  2⤵
  PID:2396
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Users\Admin\AppData\Local\Temp\ARAH BME SDN BHD INV STATEMENT.exe"
  2⤵
  PID:1608
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Users\Admin\AppData\Local\Temp\ARAH BME SDN BHD INV STATEMENT.exe"
  2⤵
  PID:2456
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Users\Admin\AppData\Local\Temp\ARAH BME SDN BHD INV STATEMENT.exe"
  2⤵
  PID:1120
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Users\Admin\AppData\Local\Temp\ARAH BME SDN BHD INV STATEMENT.exe"
  2⤵
  PID:880
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Users\Admin\AppData\Local\Temp\ARAH BME SDN BHD INV STATEMENT.exe"
  2⤵
  PID:4744
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Users\Admin\AppData\Local\Temp\ARAH BME SDN BHD INV STATEMENT.exe"
  2⤵
  PID:3004
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Users\Admin\AppData\Local\Temp\ARAH BME SDN BHD INV STATEMENT.exe"
  2⤵
  PID:4068
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Users\Admin\AppData\Local\Temp\ARAH BME SDN BHD INV STATEMENT.exe"
  2⤵
  PID:2080
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Users\Admin\AppData\Local\Temp\ARAH BME SDN BHD INV STATEMENT.exe"
  2⤵
  PID:2092
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Users\Admin\AppData\Local\Temp\ARAH BME SDN BHD INV STATEMENT.exe"
  2⤵
  PID:756
- C:\Windows\SysWOW64\dxdiag.exe
  "C:\Users\Admin\AppData\Local\Temp\ARAH BME SDN BHD INV STATEMENT.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1504

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

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\nszB71D.tmp\System.dll

Filesize
12KB

MD5
cff85c549d536f651d4fb8387f1976f2

SHA1
d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e

SHA256
8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8

SHA512
531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88

Download Submit
memory/1504-16-0x0000000000E00000-0x00000000025CB000-memory.dmp

Filesize
23.8MB

Download
memory/1504-21-0x0000000000400000-0x00000000005E4000-memory.dmp

Filesize
1.9MB

Download
memory/1504-24-0x0000000000E00000-0x00000000025CB000-memory.dmp

Filesize
23.8MB

Download
memory/3996-10-0x0000000004A10000-0x00000000061DB000-memory.dmp

Filesize
23.8MB

Download
memory/3996-11-0x0000000077511000-0x0000000077631000-memory.dmp

Filesize
1.1MB

Download
memory/3996-12-0x0000000074375000-0x0000000074376000-memory.dmp

Filesize
4KB

Download
memory/3996-13-0x0000000074370000-0x0000000074377000-memory.dmp

Filesize
28KB

Download
memory/3996-14-0x0000000004A10000-0x00000000061DB000-memory.dmp

Filesize
23.8MB

Download
memory/3996-15-0x0000000004A10000-0x00000000061DB000-memory.dmp

Filesize
23.8MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads