guloader | e6b6cb1272025f0a6857ce9cfa7cc6cb5a170f9e9c7c4be351cd56a5c6d777be

Analysis

max time kernel
142s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20250313-en
resource tags

arch:x64arch:x86image:win10v2004-20250313-enlocale:en-usos:windows10-2004-x64system
submitted
26/03/2025, 17:20

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General

Target

e6b6cb1272025f0a6857ce9cfa7cc6cb5a170f9e9c7c4be351cd56a5c6d777be.exe
Size

868KB
MD5

f84ca85c72b7e1dba1896fcb85e2ecf1
SHA1

0a253fe4fff7e3c7a52ab24ae5bf5b9a823c376f
SHA256

e6b6cb1272025f0a6857ce9cfa7cc6cb5a170f9e9c7c4be351cd56a5c6d777be
SHA512

3a3cd42c6436637c7682fa926fc60af6b762690781d47f883f9b17884ebf1fd93d37774e54497a2a0d2d72cfe011efdff1dcd0b6c598c9b35c2f7c1681dd99e1
SSDEEP

24576:U7DJhAKUuiPxs+XuTSjR/4nNx/l6v4DVLkg2nFVoZu:kWJPfcURY//l6v4DhkgyF5

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
5276	e6b6cb1272025f0a6857ce9cfa7cc6cb5a170f9e9c7c4be351cd56a5c6d777be.exe
5276	e6b6cb1272025f0a6857ce9cfa7cc6cb5a170f9e9c7c4be351cd56a5c6d777be.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
57	drive.google.com
58	drive.google.com

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
5276	e6b6cb1272025f0a6857ce9cfa7cc6cb5a170f9e9c7c4be351cd56a5c6d777be.exe
32	e6b6cb1272025f0a6857ce9cfa7cc6cb5a170f9e9c7c4be351cd56a5c6d777be.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	e6b6cb1272025f0a6857ce9cfa7cc6cb5a170f9e9c7c4be351cd56a5c6d777be.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e6b6cb1272025f0a6857ce9cfa7cc6cb5a170f9e9c7c4be351cd56a5c6d777be.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
5276	e6b6cb1272025f0a6857ce9cfa7cc6cb5a170f9e9c7c4be351cd56a5c6d777be.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5276 wrote to memory of 32	5276	e6b6cb1272025f0a6857ce9cfa7cc6cb5a170f9e9c7c4be351cd56a5c6d777be.exe	103
PID 5276 wrote to memory of 32	5276	e6b6cb1272025f0a6857ce9cfa7cc6cb5a170f9e9c7c4be351cd56a5c6d777be.exe	103
PID 5276 wrote to memory of 32	5276	e6b6cb1272025f0a6857ce9cfa7cc6cb5a170f9e9c7c4be351cd56a5c6d777be.exe	103
PID 5276 wrote to memory of 32	5276	e6b6cb1272025f0a6857ce9cfa7cc6cb5a170f9e9c7c4be351cd56a5c6d777be.exe	103

C:\Users\Admin\AppData\Local\Temp\e6b6cb1272025f0a6857ce9cfa7cc6cb5a170f9e9c7c4be351cd56a5c6d777be.exe
"C:\Users\Admin\AppData\Local\Temp\e6b6cb1272025f0a6857ce9cfa7cc6cb5a170f9e9c7c4be351cd56a5c6d777be.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:5276
- C:\Users\Admin\AppData\Local\Temp\e6b6cb1272025f0a6857ce9cfa7cc6cb5a170f9e9c7c4be351cd56a5c6d777be.exe
  "C:\Users\Admin\AppData\Local\Temp\e6b6cb1272025f0a6857ce9cfa7cc6cb5a170f9e9c7c4be351cd56a5c6d777be.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:32

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

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsn67F2.tmp\System.dll

Filesize
12KB

MD5
0d7ad4f45dc6f5aa87f606d0331c6901

SHA1
48df0911f0484cbe2a8cdd5362140b63c41ee457

SHA256
3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

SHA512
c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

Download Submit
C:\Users\Admin\epopif.ini

Filesize
36B

MD5
2e947b46798de5a1f5de4fbb1876dfa5

SHA1
5d3e85e33bab476093db669d4d12da6cd7a02a1f

SHA256
8185c647f756305bd5f7cfeb7239b95de4eccca06c85f97c104bebbf8f13a3ca

SHA512
2f2f0b6da7c41d7addfd7694864bee01d179cf27ebda81cf097bbd0d9b13103a99a5526a02e5a7ad2c845820423ec45b544c7df2b4524ea35f23b71cf5a7be89

Download Submit
memory/32-565-0x0000000001A50000-0x00000000057DB000-memory.dmp

Filesize
61.5MB

Download
memory/32-566-0x00000000771B8000-0x00000000771B9000-memory.dmp

Filesize
4KB

Download
memory/32-567-0x00000000771D5000-0x00000000771D6000-memory.dmp

Filesize
4KB

Download
memory/32-577-0x00000000007F0000-0x0000000001A44000-memory.dmp

Filesize
18.3MB

Download
memory/32-578-0x0000000077131000-0x0000000077251000-memory.dmp

Filesize
1.1MB

Download
memory/5276-564-0x0000000073E25000-0x0000000073E26000-memory.dmp

Filesize
4KB

Download
memory/5276-563-0x0000000077131000-0x0000000077251000-memory.dmp

Filesize
1.1MB

Download
memory/5276-562-0x0000000077131000-0x0000000077251000-memory.dmp

Filesize
1.1MB

Download