guloader | bfa21c905d4138da6271a80bf8bbe683a5803a5653555c116151e28c1539f79e

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
21/09/2024, 00:51

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General

Target

eec2c1539eebe98ff2430443c84b502c_JaffaCakes118.exe
Size

72KB
MD5

eec2c1539eebe98ff2430443c84b502c
SHA1

0321261ab00e21f04e6fce3b1d4bfe3922ed3cbd
SHA256

bfa21c905d4138da6271a80bf8bbe683a5803a5653555c116151e28c1539f79e
SHA512

e22d1d910337611b56230c4272ebf2b147d0e68b6943c3fe94fb328d966a152b27ec0ad0ff42fbf145e406d8d5de1e472e640d6f71d440707c86522e93871cab
SSDEEP

768:QsUuSrrHS7KljKrdFbCAX6e37Gy09BHqvgJtnvqfYfvhnEHqU09bS7KljKrdFbCK:QsKrr7ATfWHlvVEHp6ATbrr

Score

10^/10

guloader discovery downloader

Malware Config

Extracted

Family

guloader

https://drive.google.com/uc?export=download&id=19zRmRWEbe_tvCeYLoFlJAOjP43TkIzc3

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
3	drive.google.com
4	drive.google.com

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2540	eec2c1539eebe98ff2430443c84b502c_JaffaCakes118.exe
704	eec2c1539eebe98ff2430443c84b502c_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2540 set thread context of 704	2540	eec2c1539eebe98ff2430443c84b502c_JaffaCakes118.exe	29

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	eec2c1539eebe98ff2430443c84b502c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eec2c1539eebe98ff2430443c84b502c_JaffaCakes118.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2540	eec2c1539eebe98ff2430443c84b502c_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2540	eec2c1539eebe98ff2430443c84b502c_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2540 wrote to memory of 704	2540	eec2c1539eebe98ff2430443c84b502c_JaffaCakes118.exe	29
PID 2540 wrote to memory of 704	2540	eec2c1539eebe98ff2430443c84b502c_JaffaCakes118.exe	29
PID 2540 wrote to memory of 704	2540	eec2c1539eebe98ff2430443c84b502c_JaffaCakes118.exe	29
PID 2540 wrote to memory of 704	2540	eec2c1539eebe98ff2430443c84b502c_JaffaCakes118.exe	29
PID 2540 wrote to memory of 704	2540	eec2c1539eebe98ff2430443c84b502c_JaffaCakes118.exe	29

C:\Users\Admin\AppData\Local\Temp\eec2c1539eebe98ff2430443c84b502c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\eec2c1539eebe98ff2430443c84b502c_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:2540
- C:\Users\Admin\AppData\Local\Temp\eec2c1539eebe98ff2430443c84b502c_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\eec2c1539eebe98ff2430443c84b502c_JaffaCakes118.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:704

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/704-6-0x0000000000400000-0x0000000000553000-memory.dmp

Filesize
1.3MB

Download
memory/704-8-0x0000000076D90000-0x0000000076F39000-memory.dmp

Filesize
1.7MB

Download
memory/704-28-0x0000000000400000-0x0000000000553000-memory.dmp

Filesize
1.3MB

Download
memory/2540-2-0x00000000003D0000-0x00000000003D8000-memory.dmp

Filesize
32KB

Download
memory/2540-4-0x00000000003D0000-0x00000000003D8000-memory.dmp

Filesize
32KB

Download
memory/2540-5-0x0000000076D90000-0x0000000076F39000-memory.dmp

Filesize
1.7MB

Download
memory/2540-3-0x0000000076D91000-0x0000000076E92000-memory.dmp

Filesize
1.0MB

Download
memory/2540-27-0x0000000076D90000-0x0000000076F39000-memory.dmp

Filesize
1.7MB

Download