guloader | 81482cb262dc16e1db35a5580bf0134bb618ec585342c7fd790accbdaddeeb6c

Analysis

max time kernel
124s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
07-08-2023 06:40

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Objectivist.exe
Size

557KB
MD5

3524e10300f06bfba66a7506e7a8168c
SHA1

7a58bab236ba2b83174687e05a47dcd15105d7a7
SHA256

81482cb262dc16e1db35a5580bf0134bb618ec585342c7fd790accbdaddeeb6c
SHA512

030f14441aa59fabf079c3bb68dfa6df10a37c22d7638c12679e23bd53cb2fae67436732fb74d4d0e695c659beca2622f5efc8c80d570fd803a185f490c505db
SSDEEP

12288:s81oDihe70ib0HpZ0DrTBcFjYoW4PZEPBBaP0+joOVS928biqU:jaH7L4H4rTzYEJsPJSpn

Score

10^/10

guloader downloader

Malware Config

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
4432	Objectivist.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2900	4432	WerFault.exe	80

C:\Users\Admin\AppData\Local\Temp\Objectivist.exe
"C:\Users\Admin\AppData\Local\Temp\Objectivist.exe"
1⤵
- Loads dropped DLL
PID:4432
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4432 -s 2476
  2⤵
  - Program crash
  PID:2900

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 4432 -ip 4432
1⤵
PID:4988

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\nsi3342.tmp\System.dll

Filesize
11KB

MD5
4d3b19a81bd51f8ce44b93643a4e3a99

SHA1
35f8b00e85577b014080df98bd2c378351d9b3e9

SHA256
fda0018ab182ac6025d2fc9a2efcce3745d1da21ce5141859f8286cf319a52ce

SHA512
b2ba9c961c0e1617f802990587a9000979ab5cc493ae2f8ca852eb43eeaf24916b0b29057dbff7d41a1797dfb2dce3db41990e8639b8f205771dbec3fd80f622

Download Submit
memory/4432-145-0x00000000051B0000-0x00000000067F3000-memory.dmp

Filesize
22.3MB

Download
memory/4432-146-0x00000000051B0000-0x00000000067F3000-memory.dmp

Filesize
22.3MB

Download
memory/4432-147-0x00000000051B0000-0x00000000067F3000-memory.dmp

Filesize
22.3MB

Download