guloader | aec28453ffaa0598b18b653945ed5b11ce928625a881d0ab49b0aad428e4177c

Analysis

max time kernel
92s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
13-09-2024 15:31

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General

Target

de6fd9c36399cb4edd4c1ce6a66a020a_JaffaCakes118.exe
Size

80KB
MD5

de6fd9c36399cb4edd4c1ce6a66a020a
SHA1

17e8fbce596328734fc8ccf7a5c4f4067eed5132
SHA256

aec28453ffaa0598b18b653945ed5b11ce928625a881d0ab49b0aad428e4177c
SHA512

f15b17cae3f80ad2a479b863c8aae35a5e794089c7cbb567c0f9746364fdaf82a6378c5a5aaf106a9f269d2bdbd0520f6b557b1e95b39f8edc219d007360dc99
SSDEEP

768:CISDNR2jZX8OgRQTVbc42CMZ7E1XqISDN:C/qR8OgCTK42N7i6/

Score

10^/10

guloader discovery downloader

Malware Config

Extracted

Family

guloader

https://drive.google.com/uc?export=download&id=10B5t-PyiotIjd29xOsTd1TK39yay8Fy-

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
5	drive.google.com
6	drive.google.com

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4800	de6fd9c36399cb4edd4c1ce6a66a020a_JaffaCakes118.exe
3836	de6fd9c36399cb4edd4c1ce6a66a020a_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4800 set thread context of 3836	4800	de6fd9c36399cb4edd4c1ce6a66a020a_JaffaCakes118.exe	83

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	de6fd9c36399cb4edd4c1ce6a66a020a_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	de6fd9c36399cb4edd4c1ce6a66a020a_JaffaCakes118.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4800	de6fd9c36399cb4edd4c1ce6a66a020a_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4800	de6fd9c36399cb4edd4c1ce6a66a020a_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4800 wrote to memory of 3836	4800	de6fd9c36399cb4edd4c1ce6a66a020a_JaffaCakes118.exe	83
PID 4800 wrote to memory of 3836	4800	de6fd9c36399cb4edd4c1ce6a66a020a_JaffaCakes118.exe	83
PID 4800 wrote to memory of 3836	4800	de6fd9c36399cb4edd4c1ce6a66a020a_JaffaCakes118.exe	83
PID 4800 wrote to memory of 3836	4800	de6fd9c36399cb4edd4c1ce6a66a020a_JaffaCakes118.exe	83

C:\Users\Admin\AppData\Local\Temp\de6fd9c36399cb4edd4c1ce6a66a020a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\de6fd9c36399cb4edd4c1ce6a66a020a_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:4800
- C:\Users\Admin\AppData\Local\Temp\de6fd9c36399cb4edd4c1ce6a66a020a_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\de6fd9c36399cb4edd4c1ce6a66a020a_JaffaCakes118.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:3836

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

Replay Monitor

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Downloads

memory/3836-5-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/3836-7-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/3836-8-0x0000000077A71000-0x0000000077B91000-memory.dmp

Filesize
1.1MB

Download
memory/4800-2-0x0000000002AC0000-0x0000000002ACF000-memory.dmp

Filesize
60KB

Download
memory/4800-3-0x0000000077A71000-0x0000000077B91000-memory.dmp

Filesize
1.1MB

Download
memory/4800-4-0x0000000002AC0000-0x0000000002ACF000-memory.dmp

Filesize
60KB

Download