guloader | bb84e516851ec948d169ef7b84cfaedbe4db5b8e8ddd16edfacd3c012a6165fc

Analysis

max time kernel
141s
max time network
141s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-10-2024 05:28

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General

Target

55b4460e9dc7cd58d74976df231389de_JaffaCakes118.exe
Size

152KB
MD5

55b4460e9dc7cd58d74976df231389de
SHA1

de90a89c267a64f2ace75cd9f27d9bbbc7dbbd80
SHA256

bb84e516851ec948d169ef7b84cfaedbe4db5b8e8ddd16edfacd3c012a6165fc
SHA512

e48f1ccc34c6ccde92b34ca69ba9822cbddbcd306230acc659cb1451c92127178b50471fa75a699b7d47dc827c841c0541583aeec338e0e65a94dd598785f040
SSDEEP

1536:3kOzGXoo9jfz6+QixT9kPVtBR7txlr1ENsV9DqJV:0PrjrOeZYBBrMO5U

Score

10^/10

guloader discovery downloader

Malware Config

Signatures

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

Checks QEMU agent file 2 TTPs 2 IoCs

Checks presence of QEMU agent, possibly to detect virtualization.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	55b4460e9dc7cd58d74976df231389de_JaffaCakes118.exe
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	55b4460e9dc7cd58d74976df231389de_JaffaCakes118.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
3	drive.google.com
5	drive.google.com

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
3052	55b4460e9dc7cd58d74976df231389de_JaffaCakes118.exe
2804	55b4460e9dc7cd58d74976df231389de_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3052 set thread context of 2804	3052	55b4460e9dc7cd58d74976df231389de_JaffaCakes118.exe	31

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	55b4460e9dc7cd58d74976df231389de_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	55b4460e9dc7cd58d74976df231389de_JaffaCakes118.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3052	55b4460e9dc7cd58d74976df231389de_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3052	55b4460e9dc7cd58d74976df231389de_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3052 wrote to memory of 2804	3052	55b4460e9dc7cd58d74976df231389de_JaffaCakes118.exe	31
PID 3052 wrote to memory of 2804	3052	55b4460e9dc7cd58d74976df231389de_JaffaCakes118.exe	31
PID 3052 wrote to memory of 2804	3052	55b4460e9dc7cd58d74976df231389de_JaffaCakes118.exe	31
PID 3052 wrote to memory of 2804	3052	55b4460e9dc7cd58d74976df231389de_JaffaCakes118.exe	31
PID 3052 wrote to memory of 2804	3052	55b4460e9dc7cd58d74976df231389de_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\55b4460e9dc7cd58d74976df231389de_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\55b4460e9dc7cd58d74976df231389de_JaffaCakes118.exe"
1⤵
- Checks QEMU agent file
- 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:3052
- C:\Users\Admin\AppData\Local\Temp\55b4460e9dc7cd58d74976df231389de_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\55b4460e9dc7cd58d74976df231389de_JaffaCakes118.exe"
  2⤵
  - Checks QEMU agent file
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:2804

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

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/2804-6-0x0000000000400000-0x0000000000553000-memory.dmp

Filesize
1.3MB

Download
memory/2804-9-0x0000000077C40000-0x0000000077DE9000-memory.dmp

Filesize
1.7MB

Download
memory/2804-28-0x0000000000400000-0x0000000000553000-memory.dmp

Filesize
1.3MB

Download
memory/2804-30-0x0000000077C40000-0x0000000077DE9000-memory.dmp

Filesize
1.7MB

Download
memory/3052-2-0x0000000000270000-0x0000000000283000-memory.dmp

Filesize
76KB

Download
memory/3052-3-0x0000000000270000-0x0000000000283000-memory.dmp

Filesize
76KB

Download
memory/3052-5-0x0000000077C40000-0x0000000077DE9000-memory.dmp

Filesize
1.7MB

Download
memory/3052-4-0x0000000077C41000-0x0000000077D42000-memory.dmp

Filesize
1.0MB

Download
memory/3052-7-0x0000000000270000-0x0000000000283000-memory.dmp

Filesize
76KB

Download