guloader | 582c7a9d41684c01b503c411ce2edacd1bcf1b298e7c904718a55f3889d28509

Analysis

max time kernel
143s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21/09/2024, 07:52

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General

Target

ef5b493d9f0cc3fc77d176514f59ebce_JaffaCakes118.exe
Size

176KB
MD5

ef5b493d9f0cc3fc77d176514f59ebce
SHA1

159383df978d817fda509c2f6cbb3ce64f70f24c
SHA256

582c7a9d41684c01b503c411ce2edacd1bcf1b298e7c904718a55f3889d28509
SHA512

01d2eea3434725f42fcba2aa4516d3e9b07de5de878ccd37910a58b7c7f65126987a09c7975213462360d8745eb2996b1151ac218b58666926b4de6b62749fdf
SSDEEP

1536:2WU4j6iAxUazRrE8272/S8vZMQKXPRnZoJ3pTJZQb:2WUQ6iAxdxL26xvZiZnSJ3pTJSb

Score

10^/10

guloader discovery downloader

Malware Config

Extracted

Family

guloader

https://drive.google.com/uc?export=download&id=1VVEsy2z-Lqx6Tkbg4tlN6vp80EESLHVt

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
15	drive.google.com
16	drive.google.com

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4132	ef5b493d9f0cc3fc77d176514f59ebce_JaffaCakes118.exe
3576	ef5b493d9f0cc3fc77d176514f59ebce_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4132 set thread context of 3576	4132	ef5b493d9f0cc3fc77d176514f59ebce_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	ef5b493d9f0cc3fc77d176514f59ebce_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ef5b493d9f0cc3fc77d176514f59ebce_JaffaCakes118.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4132	ef5b493d9f0cc3fc77d176514f59ebce_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4132	ef5b493d9f0cc3fc77d176514f59ebce_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4132 wrote to memory of 3576	4132	ef5b493d9f0cc3fc77d176514f59ebce_JaffaCakes118.exe	84
PID 4132 wrote to memory of 3576	4132	ef5b493d9f0cc3fc77d176514f59ebce_JaffaCakes118.exe	84
PID 4132 wrote to memory of 3576	4132	ef5b493d9f0cc3fc77d176514f59ebce_JaffaCakes118.exe	84
PID 4132 wrote to memory of 3576	4132	ef5b493d9f0cc3fc77d176514f59ebce_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\ef5b493d9f0cc3fc77d176514f59ebce_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ef5b493d9f0cc3fc77d176514f59ebce_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:4132
- C:\Users\Admin\AppData\Local\Temp\ef5b493d9f0cc3fc77d176514f59ebce_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\ef5b493d9f0cc3fc77d176514f59ebce_JaffaCakes118.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:3576

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/3576-4-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/3576-7-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/3576-17-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/4132-2-0x0000000002270000-0x0000000002280000-memory.dmp

Filesize
64KB

Download
memory/4132-3-0x0000000077821000-0x0000000077941000-memory.dmp

Filesize
1.1MB

Download
memory/4132-6-0x0000000002270000-0x0000000002280000-memory.dmp

Filesize
64KB

Download