guloader | a9bb9b749030ba6312d598ae897d3a22388476bd31a3f6b38ebd4a62a50145aa

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240730-en
resource tags

arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
submitted
28/07/2024, 09:05

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General

Target

11b8efff764fbce74b43aea7f4c95b14_JaffaCakes118.exe
Size

56KB
MD5

11b8efff764fbce74b43aea7f4c95b14
SHA1

7a94694d7e5684310b665e82b7ce77cc16282b32
SHA256

a9bb9b749030ba6312d598ae897d3a22388476bd31a3f6b38ebd4a62a50145aa
SHA512

f60da34be97bb53b7c8bf22b9feb4dd44e8d9fa6229d9e6bfd10185b6ae70c139c8a18703824e80637c6170d388519c08225b864ddef689ebb57a07932ac3990
SSDEEP

384:Xz2RKr1Ys0Kp2AoXLB6z0/VhhBQe4XpYkPxVuSobXmvUxiQ0p2d6600zEJ:XGKrEYyPQe4XqkJVuSUWvc6/6tw

Score

10^/10

guloader discovery downloader

Malware Config

Extracted

Family

guloader

https://drive.google.com/uc?export=download&id=1za63AbR2EAXR_xSjBbkfxThWYX6GBuz0

http://makdkvc.ug/soft_encrypted_D85340.bin

xor.base64

Signatures

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

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
8	drive.google.com
7	drive.google.com

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1772	11b8efff764fbce74b43aea7f4c95b14_JaffaCakes118.exe
2004	11b8efff764fbce74b43aea7f4c95b14_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1772 set thread context of 2004	1772	11b8efff764fbce74b43aea7f4c95b14_JaffaCakes118.exe	84

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	11b8efff764fbce74b43aea7f4c95b14_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	11b8efff764fbce74b43aea7f4c95b14_JaffaCakes118.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1772	11b8efff764fbce74b43aea7f4c95b14_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1772	11b8efff764fbce74b43aea7f4c95b14_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1772 wrote to memory of 2004	1772	11b8efff764fbce74b43aea7f4c95b14_JaffaCakes118.exe	84
PID 1772 wrote to memory of 2004	1772	11b8efff764fbce74b43aea7f4c95b14_JaffaCakes118.exe	84
PID 1772 wrote to memory of 2004	1772	11b8efff764fbce74b43aea7f4c95b14_JaffaCakes118.exe	84
PID 1772 wrote to memory of 2004	1772	11b8efff764fbce74b43aea7f4c95b14_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\11b8efff764fbce74b43aea7f4c95b14_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\11b8efff764fbce74b43aea7f4c95b14_JaffaCakes118.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1772
- C:\Users\Admin\AppData\Local\Temp\11b8efff764fbce74b43aea7f4c95b14_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\11b8efff764fbce74b43aea7f4c95b14_JaffaCakes118.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:2004

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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

memory/1772-2-0x0000000002AE0000-0x0000000002AE8000-memory.dmp

Filesize
32KB

Download
memory/1772-3-0x0000000077971000-0x0000000077A91000-memory.dmp

Filesize
1.1MB

Download
memory/1772-4-0x0000000002AE0000-0x0000000002AE8000-memory.dmp

Filesize
32KB

Download
memory/2004-5-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/2004-8-0x0000000077971000-0x0000000077A91000-memory.dmp

Filesize
1.1MB

Download
memory/2004-7-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download