guloader | e31e9d6d56e1c173a86184d028b3fd16ccc9984be27efa321bf2106bdffc2e92

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2024 19:39

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General

Target

Justificante de Transferencia.exe
Size

276KB
MD5

d9d7ed1ebbeb8032c492788c827b5575
SHA1

50ede747462811dcd8a6a1c7d90badce6821f4c6
SHA256

dbab95bfe56a7e0a0425eb323f49f545f236168494f79e440279470d0af5652f
SHA512

e11c47554f83674a63d1c41928914ceda1c728c635241a3556e2fdd745d42d245bc4c029068abf9e2d42e9d43cd0c58dd208533c3a914b2a8dc7bd702d154314
SSDEEP

6144:91ssj6pU6jKfwAf17mUFEuwMMMMMMMMMMMMMMMMMMYMMMMMMMMMMMMMMMMMMUo+9:4sW/2wAf17FGMMMMMMMMMMMMMMMMMMYi

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
912	Justificante de Transferencia.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Despotical\Korsfarerne.ini	Justificante de Transferencia.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Fonts\Wilmer\RESULTED.Und	Justificante de Transferencia.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	Justificante de Transferencia.exe

C:\Users\Admin\AppData\Local\Temp\Justificante de Transferencia.exe
"C:\Users\Admin\AppData\Local\Temp\Justificante de Transferencia.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:912

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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

C:\Users\Admin\AppData\Local\Temp\nszB854.tmp\System.dll

Filesize
12KB

MD5
792b6f86e296d3904285b2bf67ccd7e0

SHA1
966b16f84697552747e0ddd19a4ba8ab5083af31

SHA256
c7a20bcaa0197aedddc8e4797bbb33fdf70d980f5e83c203d148121c2106d917

SHA512
97edc3410b88ca31abc0af0324258d2b59127047810947d0fb5e7e12957db34d206ffd70a0456add3a26b0546643ff0234124b08423c2c9ffe9bdec6eb210f2c

Download Submit
memory/912-11-0x0000000004190000-0x0000000004290000-memory.dmp

Filesize
1024KB

Download
memory/912-12-0x0000000004190000-0x0000000004290000-memory.dmp

Filesize
1024KB

Download