guloader | dd7eb41e06820001a84bc4ec0eedcd915025b8e137cf0867731ca228b8b3c6f1

Analysis

max time kernel
44s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
20/02/2025, 01:09

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General

Target

TOTALMARINE_STATEMENTpdf.exe
Size

596KB
MD5

f8523b659770222998860841054c1c77
SHA1

54de904ca308913f4339723d8c556b5d2b0aa1e1
SHA256

dd7eb41e06820001a84bc4ec0eedcd915025b8e137cf0867731ca228b8b3c6f1
SHA512

91f0eac3c4b3037f961c8aba9597085c3f05bdc8fa250fce2833a03281b2d651962c8c7615fab32c124b8e68bb4c73c9cab1ff49f5925116c7a5393d2cc90505
SSDEEP

12288:5UVC9GIaG5ez1UKw0DzPXBNMhmn8az8wvnSDKwaF9AUiDeDx3E:KVzK5ez1Y0vXBWm8aYwvnCKwaqDeDB

Score

10^/10

guloader discovery downloader

Malware Config

Signatures

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

Loads dropped DLL 2 IoCs

pid	Process
2296	TOTALMARINE_STATEMENTpdf.exe
2296	TOTALMARINE_STATEMENTpdf.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2296	TOTALMARINE_STATEMENTpdf.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2788	2732	WerFault.exe	29

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	TOTALMARINE_STATEMENTpdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TOTALMARINE_STATEMENTpdf.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2296	TOTALMARINE_STATEMENTpdf.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2296 wrote to memory of 2732	2296	TOTALMARINE_STATEMENTpdf.exe	29
PID 2296 wrote to memory of 2732	2296	TOTALMARINE_STATEMENTpdf.exe	29
PID 2296 wrote to memory of 2732	2296	TOTALMARINE_STATEMENTpdf.exe	29
PID 2296 wrote to memory of 2732	2296	TOTALMARINE_STATEMENTpdf.exe	29
PID 2296 wrote to memory of 2732	2296	TOTALMARINE_STATEMENTpdf.exe	29
PID 2732 wrote to memory of 2788	2732	TOTALMARINE_STATEMENTpdf.exe	30
PID 2732 wrote to memory of 2788	2732	TOTALMARINE_STATEMENTpdf.exe	30
PID 2732 wrote to memory of 2788	2732	TOTALMARINE_STATEMENTpdf.exe	30
PID 2732 wrote to memory of 2788	2732	TOTALMARINE_STATEMENTpdf.exe	30

C:\Users\Admin\AppData\Local\Temp\TOTALMARINE_STATEMENTpdf.exe
"C:\Users\Admin\AppData\Local\Temp\TOTALMARINE_STATEMENTpdf.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2296
- C:\Users\Admin\AppData\Local\Temp\TOTALMARINE_STATEMENTpdf.exe
  "C:\Users\Admin\AppData\Local\Temp\TOTALMARINE_STATEMENTpdf.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2732
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2732 -s 104
    3⤵
    - Program crash
    PID:2788

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\AppData\Local\Temp\nsjFC4A.tmp\System.dll

Filesize
11KB

MD5
2ae993a2ffec0c137eb51c8832691bcb

SHA1
98e0b37b7c14890f8a599f35678af5e9435906e1

SHA256
681382f3134de5c6272a49dd13651c8c201b89c247b471191496e7335702fa59

SHA512
2501371eb09c01746119305ba080f3b8c41e64535ff09cee4f51322530366d0bd5322ea5290a466356598027e6cda8ab360caef62dcaf560d630742e2dd9bcd9

Download Submit
memory/2296-21-0x0000000077310000-0x00000000774B9000-memory.dmp

Filesize
1.7MB

Download
memory/2296-20-0x0000000077311000-0x0000000077412000-memory.dmp

Filesize
1.0MB

Download
memory/2732-23-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download
memory/2732-22-0x0000000001470000-0x0000000004F89000-memory.dmp

Filesize
59.1MB

Download
memory/2732-25-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download