guloader | 4a6b8d26d298279a62f2a27aa6a8a9b67db22a2195f9e4de3c19dccb0a0f8126

Analysis

max time kernel
150s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
27/07/2026, 04:35

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General

Target
4a6b8d26d298279a62f2a27aa6a8a9b67db22a2195f9e4de3c19dccb0a0f8126.exe
Size 962KB
Sample260727-e7phpagr3v
SHA256 4a6b8d26d298279a62f2a27aa6a8a9b67db22a2195f9e4de3c19dccb0a0f8126
MD5 f46329e59f449cdcd96a1d78b4e96f59
SHA1 007386fadca47afbe5632420c46f658a978eb688
SHA512 1b5ce7ff01d1683414bf791a55bdceca18c38db8b61c5c89f35acab627d2f11cb7ad47bebec39c5e8fe463cdbd5fd54ee4c154b496488335363ae38be55e2c02
SSDEEP 24576:RXaVXbFfDTwbaCoMoZ2j7IRUCAm504gmfZoeYCQ:FobVDsmn4j8t04gmmL
TLSH
T14225230AE0B99463E9F11170043766B6FEBB5F1155A0838BA7343F3F3DB58B1852A693
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
3916	4a6b8d26d298279a62f2a27aa6a8a9b67db22a2195f9e4de3c19dccb0a0f8126.exe

Contacts third-party web service commonly abused for C2 1 TTPs 3 IoCs

Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

Web Service

T1102

flow	ioc
12	drive.google.com
13	drive.google.com
35	drive.google.com

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
3916	4a6b8d26d298279a62f2a27aa6a8a9b67db22a2195f9e4de3c19dccb0a0f8126.exe
2988	4a6b8d26d298279a62f2a27aa6a8a9b67db22a2195f9e4de3c19dccb0a0f8126.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	4a6b8d26d298279a62f2a27aa6a8a9b67db22a2195f9e4de3c19dccb0a0f8126.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4a6b8d26d298279a62f2a27aa6a8a9b67db22a2195f9e4de3c19dccb0a0f8126.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3916	4a6b8d26d298279a62f2a27aa6a8a9b67db22a2195f9e4de3c19dccb0a0f8126.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3916 wrote to memory of 2240	3916	4a6b8d26d298279a62f2a27aa6a8a9b67db22a2195f9e4de3c19dccb0a0f8126.exe	88
PID 3916 wrote to memory of 2988	3916	4a6b8d26d298279a62f2a27aa6a8a9b67db22a2195f9e4de3c19dccb0a0f8126.exe	89
PID 3916 wrote to memory of 2988	3916	4a6b8d26d298279a62f2a27aa6a8a9b67db22a2195f9e4de3c19dccb0a0f8126.exe	89
PID 2988 wrote to memory of 4472	2988	4a6b8d26d298279a62f2a27aa6a8a9b67db22a2195f9e4de3c19dccb0a0f8126.exe	90

C:\Users\Admin\AppData\Local\Temp\4a6b8d26d298279a62f2a27aa6a8a9b67db22a2195f9e4de3c19dccb0a0f8126.exe
"C:\Users\Admin\AppData\Local\Temp\4a6b8d26d298279a62f2a27aa6a8a9b67db22a2195f9e4de3c19dccb0a0f8126.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3916
- C:\Users\Admin\AppData\Local\Temp\4a6b8d26d298279a62f2a27aa6a8a9b67db22a2195f9e4de3c19dccb0a0f8126.exe
  "C:\Users\Admin\AppData\Local\Temp\4a6b8d26d298279a62f2a27aa6a8a9b67db22a2195f9e4de3c19dccb0a0f8126.exe"
  2⤵
  PID:2240
- C:\Users\Admin\AppData\Local\Temp\4a6b8d26d298279a62f2a27aa6a8a9b67db22a2195f9e4de3c19dccb0a0f8126.exe
  "C:\Users\Admin\AppData\Local\Temp\4a6b8d26d298279a62f2a27aa6a8a9b67db22a2195f9e4de3c19dccb0a0f8126.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2988
- - C:\Users\Admin\AppData\Local\Temp\4a6b8d26d298279a62f2a27aa6a8a9b67db22a2195f9e4de3c19dccb0a0f8126.exe
    "C:\Users\Admin\AppData\Local\Temp\4a6b8d26d298279a62f2a27aa6a8a9b67db22a2195f9e4de3c19dccb0a0f8126.exe"
    3⤵
    PID:4472

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

Web Service

T1102

Exfiltration

Impact

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Downloads

System.dll

Path C:\Users\Admin\AppData\Local\Temp\nsw6185.tmp\System.dll
Size 12KB
SHA256 23d618a0293c78ce00f7c6e6dd8b8923621da7dd1f63a070163ef4c0ec3033d6
MD5 192639861e3dc2dc5c08bb8f8c7260d5
SHA1 58d30e460609e22fa0098bc27d928b689ef9af78
SHA512 6e573d8b2ef6ed719e271fd0b2fd9cd451f61fc9a9459330108d6d7a65a0f64016303318cad787aa1d5334ba670d8f1c7c13074e1be550b4a316963ecc465cdc
SSDEEP 192:ljHcQ0qWTlt7wi5Aj/lM0sEWD/wtYbBjpNQybC7y+XZqE0QPi:R/Qlt7wiij/lMRv/9V4bfr
TLSH
T1B1427C1297B089F2F551493419667F2A6FBEAC5C13F405A3CFE304C63D212CB9839243
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2988-43-0x0000000000400000-0x0000000001654000-memory.dmp

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memory/2988-45-0x0000000000400000-0x0000000001654000-memory.dmp

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memory/2988-46-0x0000000001660000-0x0000000003F7F000-memory.dmp

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memory/3916-41-0x0000000004C80000-0x000000000759F000-memory.dmp

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memory/3916-42-0x0000000074A25000-0x0000000074A26000-memory.dmp

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memory/3916-44-0x0000000004C80000-0x000000000759F000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads