guloader | 22bdec013954160291c36c833a788b59c40d6758443418cf7a206f549f3d4873

Analysis

max time kernel
148s
max time network
151s
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, 16:15

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General

Target
Doc4736478384775837642_JULY 2022.exe
Size 620KB
Sample241221-tqb9cssphr
SHA256 73c90df4f49a9c5cc0b0e848dd4052b26335959618df392912982fd1ea15147b
MD5 e2b4171a7b83f61ae32d10fba0d7316b
SHA1 15ddef6a5b7b4417693d91003f4a2d03d826d71b
SHA512 af096b104a33863acd449a84d1538e4f943d2a14e5c72b01c441019a52691c0ca7bafdec077ebb5290017f4306e1520885270297c0867cbbbea910ce047ab672
SSDEEP 12288:5bZpw46GMbBMMtJdW/GqEUUt4ysV8ic6SnuyCLIu:5bZpz6GMxdWK8V8icluH
MD5 SHA1 SHA512 SSDEEP

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 1 IoCs

pid	Process
4264	Doc4736478384775837642_JULY 2022.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Fonts\TRULLISATIOS\Unvitreously.lnk	Doc4736478384775837642_JULY 2022.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 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	Doc4736478384775837642_JULY 2022.exe

C:\Users\Admin\AppData\Local\Temp\Doc4736478384775837642_JULY 2022.exe
"C:\Users\Admin\AppData\Local\Temp\Doc4736478384775837642_JULY 2022.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:4264

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

System.dll

Path C:\Users\Admin\AppData\Local\Temp\nse6BF9.tmp\System.dll
Size 12KB
SHA256 8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8
MD5 cff85c549d536f651d4fb8387f1976f2
SHA1 d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e
SHA512 531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88
SSDEEP 192:Zjvco0qWTlt70m5Aj/lQ0sEWD/wtYbBHFNaDybC7y+XBz0QPi:FHQlt70mij/lQRv/9VMjzr
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/4264-8-0x0000000002A80000-0x0000000002C80000-memory.dmp

Download

memory/4264-9-0x0000000002A80000-0x0000000002C80000-memory.dmp