guloader | 49847b4c6e5cccca50beccf23260cac3d3446feb0692cd113302b2fcaccbbefe

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
06-02-2025 06:27

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General

Target

49847b4c6e5cccca50beccf23260cac3d3446feb0692cd113302b2fcaccbbefe.exe
Size

743KB
MD5

92bca263fe2c4f6d7621457b5a758854
SHA1

81b5228c17dbcde2803f07e68fc2aeae907e2cf4
SHA256

49847b4c6e5cccca50beccf23260cac3d3446feb0692cd113302b2fcaccbbefe
SHA512

de9dea96a5d438f780a3e46fe3bdf0ab77f2f2131eeb2b01cbf98d69a573e3b0af994ed89e506725c0d14465001eb5f7660a4161a05995d1d6491929e32a538c
SSDEEP

12288:dT58++c2/p0FdmxxSKA+Rh8LYHjmLmyj/fzPzTyWaLj0wclOp24g/KHZJ:dT58+86wxx5A+Rh2YDmtHzTI30Mp7J

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
532	49847b4c6e5cccca50beccf23260cac3d3446feb0692cd113302b2fcaccbbefe.exe
532	49847b4c6e5cccca50beccf23260cac3d3446feb0692cd113302b2fcaccbbefe.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
2492	532	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 1 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	49847b4c6e5cccca50beccf23260cac3d3446feb0692cd113302b2fcaccbbefe.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 532 wrote to memory of 2492	532	49847b4c6e5cccca50beccf23260cac3d3446feb0692cd113302b2fcaccbbefe.exe	31
PID 532 wrote to memory of 2492	532	49847b4c6e5cccca50beccf23260cac3d3446feb0692cd113302b2fcaccbbefe.exe	31
PID 532 wrote to memory of 2492	532	49847b4c6e5cccca50beccf23260cac3d3446feb0692cd113302b2fcaccbbefe.exe	31
PID 532 wrote to memory of 2492	532	49847b4c6e5cccca50beccf23260cac3d3446feb0692cd113302b2fcaccbbefe.exe	31

C:\Users\Admin\AppData\Local\Temp\49847b4c6e5cccca50beccf23260cac3d3446feb0692cd113302b2fcaccbbefe.exe
"C:\Users\Admin\AppData\Local\Temp\49847b4c6e5cccca50beccf23260cac3d3446feb0692cd113302b2fcaccbbefe.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:532
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 532 -s 536
  2⤵
  - Program crash
  PID:2492

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\nsyDBD0.tmp\System.dll

Filesize
12KB

MD5
d968cb2b98b83c03a9f02dd9b8df97dc

SHA1
d784c9b7a92dce58a5038beb62a48ff509e166a0

SHA256
a4ec98011ef99e595912718c1a1bf1aa67bfc2192575729d42f559d01f67b95c

SHA512
2ee41dc68f329a1519a8073ece7d746c9f3bf45d8ef3b915deb376af37e26074134af5f83c8af0fe0ab227f0d1acca9f37e5ca7ae37c46c3bcc0331fe5e2b97e

Download Submit
memory/532-18-0x0000000004190000-0x0000000004DFA000-memory.dmp

Filesize
12.4MB

Download
memory/532-19-0x0000000004190000-0x0000000004DFA000-memory.dmp

Filesize
12.4MB

Download