guloader | 61b0c23817191551450282f600447e54a47297c2685eec81598a3daf63b16155

Analysis

max time kernel
95s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-12-2024 21:55

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General

Target

JaffaCakes118_61b0c23817191551450282f600447e54a47297c2685eec81598a3daf63b16155.exe
Size

68KB
MD5

0162ff949c8c278e62c3eb57fd510d42
SHA1

dd8a4d3bd394bd1f5492640a8a26722110d58e03
SHA256

61b0c23817191551450282f600447e54a47297c2685eec81598a3daf63b16155
SHA512

f1bbecc6a7e4c4b38a76826d202aeae590c94fde92391b120f52ff7584be13e4b0230aa62f3efdcf3bcb7279dfe949bc319506a9f7af8df1a24dab5bb18a868d
SSDEEP

768:jwXBOpfK7ckw8TfuXZcYqomMjk5Nw7HqeuMmPAPkGB02WQq0/o4JCChP:jwsK7ck/zuXZAMCiq1Mm4nBPWQjo4Jd

Score

10^/10

guloader discovery downloader

Malware Config

Extracted

Family

guloader

https://onedrive.live.com/download?cid=1B6E6032CE5E4651&resid=1B6E6032CE5E4651%212074&authkey=AOvT7-22YNVt_qw

xor.base64

Signatures

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

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2260	JaffaCakes118_61b0c23817191551450282f600447e54a47297c2685eec81598a3daf63b16155.exe
5064	JaffaCakes118_61b0c23817191551450282f600447e54a47297c2685eec81598a3daf63b16155.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2260 set thread context of 5064	2260	JaffaCakes118_61b0c23817191551450282f600447e54a47297c2685eec81598a3daf63b16155.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	JaffaCakes118_61b0c23817191551450282f600447e54a47297c2685eec81598a3daf63b16155.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_61b0c23817191551450282f600447e54a47297c2685eec81598a3daf63b16155.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2260	JaffaCakes118_61b0c23817191551450282f600447e54a47297c2685eec81598a3daf63b16155.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2260	JaffaCakes118_61b0c23817191551450282f600447e54a47297c2685eec81598a3daf63b16155.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2260 wrote to memory of 5064	2260	JaffaCakes118_61b0c23817191551450282f600447e54a47297c2685eec81598a3daf63b16155.exe	82
PID 2260 wrote to memory of 5064	2260	JaffaCakes118_61b0c23817191551450282f600447e54a47297c2685eec81598a3daf63b16155.exe	82
PID 2260 wrote to memory of 5064	2260	JaffaCakes118_61b0c23817191551450282f600447e54a47297c2685eec81598a3daf63b16155.exe	82
PID 2260 wrote to memory of 5064	2260	JaffaCakes118_61b0c23817191551450282f600447e54a47297c2685eec81598a3daf63b16155.exe	82

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_61b0c23817191551450282f600447e54a47297c2685eec81598a3daf63b16155.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_61b0c23817191551450282f600447e54a47297c2685eec81598a3daf63b16155.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:2260
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_61b0c23817191551450282f600447e54a47297c2685eec81598a3daf63b16155.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_61b0c23817191551450282f600447e54a47297c2685eec81598a3daf63b16155.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:5064

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/2260-2-0x0000000002210000-0x0000000002219000-memory.dmp

Filesize
36KB

Download
memory/2260-3-0x00000000774A1000-0x00000000775C1000-memory.dmp

Filesize
1.1MB

Download
memory/2260-8-0x0000000002210000-0x0000000002219000-memory.dmp

Filesize
36KB

Download
memory/5064-4-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/5064-7-0x00000000774A1000-0x00000000775C1000-memory.dmp

Filesize
1.1MB

Download
memory/5064-6-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download