guloader | 75fdb848eac332b4ca7d88f497e7ba7ebbb9a798d825b28cf1f87b9d7149e87f

Analysis

max time kernel
96s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-12-2024 03:04

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General

Target

makave (2)_protected_68A4BB0.exe
Size

52KB
MD5

d6e2c068e30e1c6bc6aa27368930c12c
SHA1

2582f973de8c840192d55bd144d65c0a4d475247
SHA256

f74d3364ef9d3e3df4173a7f12d48348af44bf150c0ffcd01f0054e86ebb7e0e
SHA512

f0d4aa83f6779f550b6a88a2b8b9459d92961190ff1d747c9529919bed7149648ef27c7f205c75465fa843d3c747d9db6e5ede0ef8e231895f1e8dd8010652e9
SSDEEP

768:9dOvsirFVc8suQRjR+DK+QXxoGHdXBplrUeIk:risiSFjR1BdHdXBfp

Score

10^/10

guloader discovery downloader

Malware Config

Extracted

Family

guloader

https://onedrive.live.com/download?cid=674027E0093531EF&resid=674027E0093531EF%21115&authkey=AGjbhIm6m1Nvx-w

xor.base64

Signatures

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

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1616	makave (2)_protected_68A4BB0.exe
4300	makave (2)_protected_68A4BB0.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1616 set thread context of 4300	1616	makave (2)_protected_68A4BB0.exe	83

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	makave (2)_protected_68A4BB0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	makave (2)_protected_68A4BB0.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1616	makave (2)_protected_68A4BB0.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1616	makave (2)_protected_68A4BB0.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1616 wrote to memory of 4300	1616	makave (2)_protected_68A4BB0.exe	83
PID 1616 wrote to memory of 4300	1616	makave (2)_protected_68A4BB0.exe	83
PID 1616 wrote to memory of 4300	1616	makave (2)_protected_68A4BB0.exe	83
PID 1616 wrote to memory of 4300	1616	makave (2)_protected_68A4BB0.exe	83

C:\Users\Admin\AppData\Local\Temp\makave (2)_protected_68A4BB0.exe
"C:\Users\Admin\AppData\Local\Temp\makave (2)_protected_68A4BB0.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1616
- C:\Users\Admin\AppData\Local\Temp\makave (2)_protected_68A4BB0.exe
  "C:\Users\Admin\AppData\Local\Temp\makave (2)_protected_68A4BB0.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:4300

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1616-2-0x0000000002110000-0x0000000002118000-memory.dmp

Filesize
32KB

Download
memory/1616-3-0x0000000077CB1000-0x0000000077DD1000-memory.dmp

Filesize
1.1MB

Download
memory/1616-6-0x0000000002110000-0x0000000002118000-memory.dmp

Filesize
32KB

Download
memory/4300-5-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/4300-7-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download