guloader | 31113f22d502f729d5fe022e54d1fc0101056a25c622c4b537f5fd1b98b599c8

Analysis

max time kernel
150s
max time network
147s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
27/07/2026, 03:10

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General

Target
31113f22d502f729d5fe022e54d1fc0101056a25c622c4b537f5fd1b98b599c8.exe
Size 376KB
Sample260727-dn8xjsha96
SHA256 31113f22d502f729d5fe022e54d1fc0101056a25c622c4b537f5fd1b98b599c8
MD5 d7f9b9a0fc34553552a08a83d3e49d60
SHA1 13908b2f0dc7aac2b99def438958e4b04d041391
SHA512 8ce425f6c613df4ae94b1bf203a53567efef98ae09a0e06b92aeb213b7da3653d1e78e4144216a7a987905315aae490a8f9d3dd88ce21a60710134d390eaa782
SSDEEP 6144:A4t6LsyAWYRsw3HWstpqvp2Ocmrx27o62C6Prv7FV3gQmS7l836PcjbeQ8AFQTH8:AkdW+Ttovp24Co62PTvfJUjbhqH3sb
TLSH
T197841248B675D063D8658A712C1BABF30A64EE162928432F37807ADD3D7079DFE0D399
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery downloader guloader

Malware Config

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
4984	31113f22d502f729d5fe022e54d1fc0101056a25c622c4b537f5fd1b98b599c8.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4984	31113f22d502f729d5fe022e54d1fc0101056a25c622c4b537f5fd1b98b599c8.exe
5048	31113f22d502f729d5fe022e54d1fc0101056a25c622c4b537f5fd1b98b599c8.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	31113f22d502f729d5fe022e54d1fc0101056a25c622c4b537f5fd1b98b599c8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	31113f22d502f729d5fe022e54d1fc0101056a25c622c4b537f5fd1b98b599c8.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4984	31113f22d502f729d5fe022e54d1fc0101056a25c622c4b537f5fd1b98b599c8.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4984 wrote to memory of 5052	4984	31113f22d502f729d5fe022e54d1fc0101056a25c622c4b537f5fd1b98b599c8.exe	89
PID 4984 wrote to memory of 5048	4984	31113f22d502f729d5fe022e54d1fc0101056a25c622c4b537f5fd1b98b599c8.exe	90
PID 4984 wrote to memory of 5048	4984	31113f22d502f729d5fe022e54d1fc0101056a25c622c4b537f5fd1b98b599c8.exe	90
PID 5048 wrote to memory of 720	5048	31113f22d502f729d5fe022e54d1fc0101056a25c622c4b537f5fd1b98b599c8.exe	91

C:\Users\Admin\AppData\Local\Temp\31113f22d502f729d5fe022e54d1fc0101056a25c622c4b537f5fd1b98b599c8.exe
"C:\Users\Admin\AppData\Local\Temp\31113f22d502f729d5fe022e54d1fc0101056a25c622c4b537f5fd1b98b599c8.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4984
- C:\Users\Admin\AppData\Local\Temp\31113f22d502f729d5fe022e54d1fc0101056a25c622c4b537f5fd1b98b599c8.exe
  "C:\Users\Admin\AppData\Local\Temp\31113f22d502f729d5fe022e54d1fc0101056a25c622c4b537f5fd1b98b599c8.exe"
  2⤵
  PID:5052
- C:\Users\Admin\AppData\Local\Temp\31113f22d502f729d5fe022e54d1fc0101056a25c622c4b537f5fd1b98b599c8.exe
  "C:\Users\Admin\AppData\Local\Temp\31113f22d502f729d5fe022e54d1fc0101056a25c622c4b537f5fd1b98b599c8.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5048
- - C:\Users\Admin\AppData\Local\Temp\31113f22d502f729d5fe022e54d1fc0101056a25c622c4b537f5fd1b98b599c8.exe
    "C:\Users\Admin\AppData\Local\Temp\31113f22d502f729d5fe022e54d1fc0101056a25c622c4b537f5fd1b98b599c8.exe"
    3⤵
    PID:720

Network

MITRE ATT&CK Enterprise v16

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

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Downloads

System.dll

Path C:\Users\Admin\AppData\Local\Temp\nsa1DA1.tmp\System.dll
Size 11KB
SHA256 bd046e6497b304e4ea4ab102cab2b1f94ce09bde0eebba4c59942a732679e4eb
MD5 17ed1c86bd67e78ade4712be48a7d2bd
SHA1 1cc9fe86d6d6030b4dae45ecddce5907991c01a0
SHA512 0cbed521e7d6d1f85977b3f7d3ca7ac34e1b5495b69fd8c7bfa1a846baf53b0ecd06fe1ad02a3599082ffacaf8c71a3bb4e32dec05f8e24859d736b828092cd5
SSDEEP 192:eY24sihno00Wfl97nH6T2enXwWobpWBTU4VtHT7dmN35Ol+Sl:E8QIl975eXqlWBrz7YLOl+
TLSH
T1E3325C12135081F3E4918138C86B3A276B6A15029BF98E57DFD39546BE31BE3BD7D603
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4984-10-0x0000000006050000-0x0000000007228000-memory.dmp

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memory/4984-11-0x0000000010004000-0x0000000010005000-memory.dmp

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memory/5048-12-0x0000000001770000-0x0000000002948000-memory.dmp

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memory/5048-13-0x000000007725F000-0x0000000077260000-memory.dmp

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memory/5048-14-0x000000007721D000-0x000000007721E000-memory.dmp

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memory/5048-15-0x00000000772E5000-0x00000000772E6000-memory.dmp

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memory/5048-16-0x0000000001770000-0x0000000002948000-memory.dmp

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memory/5048-17-0x0000000000480000-0x0000000001766000-memory.dmp

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memory/5048-18-0x00000000772E5000-0x00000000772E6000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads