guloader | 22600bf939213458b0c557700031593aaf9fe0c2cd90fc330e29748ec66adb03

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-01-2025 23:30

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General

Target

JaffaCakes118_0177c423d33507eb5acfbf6180035561.exe
Size

136KB
MD5

0177c423d33507eb5acfbf6180035561
SHA1

fe00bc95807fcc0ab3eebec288e3c35934de1f46
SHA256

22600bf939213458b0c557700031593aaf9fe0c2cd90fc330e29748ec66adb03
SHA512

389d20c2446f0d1e3c3d1f01f372453c02a7e165ef8ba835ea91e5df4550b32102a44ce88cad442e11f347f8825068dd1aab0cae0f408bf6daf654f893597d1d
SSDEEP

1536:7uQk9P70nl81EqOrI0goTQJ6ww7koXXyqqGphcZvnw2:i9D+81EDmAQVwIoYnhnH

Score

10^/10

guloader discovery downloader

Malware Config

Signatures

Guloader family
guloader
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	JaffaCakes118_0177c423d33507eb5acfbf6180035561.exe
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	JaffaCakes118_0177c423d33507eb5acfbf6180035561.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1992	JaffaCakes118_0177c423d33507eb5acfbf6180035561.exe
1496	JaffaCakes118_0177c423d33507eb5acfbf6180035561.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1992 set thread context of 1496	1992	JaffaCakes118_0177c423d33507eb5acfbf6180035561.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	JaffaCakes118_0177c423d33507eb5acfbf6180035561.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0177c423d33507eb5acfbf6180035561.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1992	JaffaCakes118_0177c423d33507eb5acfbf6180035561.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1992	JaffaCakes118_0177c423d33507eb5acfbf6180035561.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1992 wrote to memory of 1496	1992	JaffaCakes118_0177c423d33507eb5acfbf6180035561.exe	31
PID 1992 wrote to memory of 1496	1992	JaffaCakes118_0177c423d33507eb5acfbf6180035561.exe	31
PID 1992 wrote to memory of 1496	1992	JaffaCakes118_0177c423d33507eb5acfbf6180035561.exe	31
PID 1992 wrote to memory of 1496	1992	JaffaCakes118_0177c423d33507eb5acfbf6180035561.exe	31
PID 1992 wrote to memory of 1496	1992	JaffaCakes118_0177c423d33507eb5acfbf6180035561.exe	31

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0177c423d33507eb5acfbf6180035561.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0177c423d33507eb5acfbf6180035561.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:1992
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0177c423d33507eb5acfbf6180035561.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0177c423d33507eb5acfbf6180035561.exe"
  2⤵
  - Checks QEMU agent file
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:1496

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

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1496-6-0x0000000000400000-0x0000000000553000-memory.dmp

Filesize
1.3MB

Download
memory/1496-9-0x0000000076EA0000-0x0000000077049000-memory.dmp

Filesize
1.7MB

Download
memory/1496-10-0x0000000000400000-0x0000000000553000-memory.dmp

Filesize
1.3MB

Download
memory/1992-2-0x00000000003E0000-0x00000000003F6000-memory.dmp

Filesize
88KB

Download
memory/1992-3-0x0000000076EA1000-0x0000000076FA2000-memory.dmp

Filesize
1.0MB

Download
memory/1992-4-0x0000000076EA0000-0x0000000077049000-memory.dmp

Filesize
1.7MB

Download
memory/1992-5-0x00000000003E0000-0x00000000003F6000-memory.dmp

Filesize
88KB

Download
memory/1992-8-0x00000000003E0000-0x00000000003F6000-memory.dmp

Filesize
88KB

Download