guloader | fcf82a7fc4e1cc2952da694daa959d579e64cfbcc53a90aee48ae42768f6bce1

Analysis

max time kernel
149s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19/09/2024, 08:29

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General

Target

eaf1fbfb3c7d20830176ef7e9cafe8df_JaffaCakes118.exe
Size

76KB
MD5

eaf1fbfb3c7d20830176ef7e9cafe8df
SHA1

0f956d505508638e1b6c246c2e514a7d27d12140
SHA256

fcf82a7fc4e1cc2952da694daa959d579e64cfbcc53a90aee48ae42768f6bce1
SHA512

32cf52dd5576b50209483da83968e027992c35910a8e7da09127677fed62d6a3f28d2169a5a3c2b4c846f5cb37534364fac4801347e0f21df39a985d388d93aa
SSDEEP

768:qCM4PaJ1hW56NiAbvluqxwpG5Ywnp7SogziGCWPpnC3/dbdjNGCHZanCM4:q14PgTWgEYtxAWtdaKLHZw14

Score

10^/10

guloader discovery downloader

Malware Config

Extracted

Family

guloader

https://dfsdfbdz.cf/vvd2.bin

xor.base64

Signatures

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

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4048	eaf1fbfb3c7d20830176ef7e9cafe8df_JaffaCakes118.exe
1984	eaf1fbfb3c7d20830176ef7e9cafe8df_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4048 set thread context of 1984	4048	eaf1fbfb3c7d20830176ef7e9cafe8df_JaffaCakes118.exe	82

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	eaf1fbfb3c7d20830176ef7e9cafe8df_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eaf1fbfb3c7d20830176ef7e9cafe8df_JaffaCakes118.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4048	eaf1fbfb3c7d20830176ef7e9cafe8df_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4048	eaf1fbfb3c7d20830176ef7e9cafe8df_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4048 wrote to memory of 1984	4048	eaf1fbfb3c7d20830176ef7e9cafe8df_JaffaCakes118.exe	82
PID 4048 wrote to memory of 1984	4048	eaf1fbfb3c7d20830176ef7e9cafe8df_JaffaCakes118.exe	82
PID 4048 wrote to memory of 1984	4048	eaf1fbfb3c7d20830176ef7e9cafe8df_JaffaCakes118.exe	82
PID 4048 wrote to memory of 1984	4048	eaf1fbfb3c7d20830176ef7e9cafe8df_JaffaCakes118.exe	82

C:\Users\Admin\AppData\Local\Temp\eaf1fbfb3c7d20830176ef7e9cafe8df_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\eaf1fbfb3c7d20830176ef7e9cafe8df_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:4048
- C:\Users\Admin\AppData\Local\Temp\eaf1fbfb3c7d20830176ef7e9cafe8df_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\eaf1fbfb3c7d20830176ef7e9cafe8df_JaffaCakes118.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:1984

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

Exfiltration

Impact

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Downloads

memory/1984-4-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/1984-8-0x0000000077521000-0x0000000077641000-memory.dmp

Filesize
1.1MB

Download
memory/1984-6-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/4048-2-0x0000000002260000-0x000000000226C000-memory.dmp

Filesize
48KB

Download
memory/4048-3-0x0000000077521000-0x0000000077641000-memory.dmp

Filesize
1.1MB

Download
memory/4048-7-0x0000000002260000-0x000000000226C000-memory.dmp

Filesize
48KB

Download