guloader | db48dc160b1f48b8939b0d49c5f0bee2a28bc3b340cff62cea8da50424e1afea

General

Target

8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe
Size

152KB
MD5

8a8006fefc0565530f63be48c5e24631
SHA1

cfdacf507d4bf932401642dd7c62d8aae6dc65f3
SHA256

db48dc160b1f48b8939b0d49c5f0bee2a28bc3b340cff62cea8da50424e1afea
SHA512

2d62c365578a329bc995feff1abe473c82675c3c97660e46139859505f088efc0107a2d227d6fd9fb46dc7204c7dacd6e5ebea48751b9953b87e3797f5eea956
SSDEEP

3072:gxEJpxEqxE2wzwcqvJRFwasAe3crw9xEAxEKxEJ:GEJ7EAE2Uqh0+6EmEgEJ

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

Processes:

8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe

description	ioc	process
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe

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

Web Service
T1102

Processes:

flow ioc

4 drive.google.com
5 drive.google.com
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe

pid process

2532 8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe
1496 8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe

flow	ioc
4	drive.google.com
5	drive.google.com

pid	process
2532	8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe
1496	8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe

description	pid	process	target process
PID 2532 set thread context of 1496	2532	8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe	8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe

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

Processes:

8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe

pid process

2532 8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe

pid process

2532 8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe

pid	process
2532	8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe

pid	process
2532	8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe

description	pid	process	target process
PID 2532 wrote to memory of 1496	2532	8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe	8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe
PID 2532 wrote to memory of 1496	2532	8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe	8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe
PID 2532 wrote to memory of 1496	2532	8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe	8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe
PID 2532 wrote to memory of 1496	2532	8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe	8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe
PID 2532 wrote to memory of 1496	2532	8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe	8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8a8006fefc0565530f63be48c5e24631_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:2532
- C:\Users\Admin\AppData\Local\Temp\8a8006fefc0565530f63be48c5e24631_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\8a8006fefc0565530f63be48c5e24631_JaffaCakes118.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

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1496-10-0x0000000076EA0000-0x0000000077049000-memory.dmp

Filesize
1.7MB

Download
memory/1496-5-0x0000000000400000-0x0000000000553000-memory.dmp

Filesize
1.3MB

Download
memory/1496-12-0x0000000000400000-0x0000000000553000-memory.dmp

Filesize
1.3MB

Download
memory/1496-29-0x0000000000400000-0x0000000000553000-memory.dmp

Filesize
1.3MB

Download
memory/2532-2-0x00000000003B0000-0x00000000003C3000-memory.dmp

Filesize
76KB

Download
memory/2532-3-0x00000000003B0000-0x00000000003C3000-memory.dmp

Filesize
76KB

Download
memory/2532-4-0x0000000076EA1000-0x0000000076FA2000-memory.dmp

Filesize
1.0MB

Download
memory/2532-9-0x0000000076EA0000-0x0000000077049000-memory.dmp

Filesize
1.7MB

Download
memory/2532-8-0x0000000077090000-0x0000000077166000-memory.dmp

Filesize
856KB

Download
memory/2532-7-0x00000000003B0000-0x00000000003C3000-memory.dmp

Filesize
76KB

Download
memory/2532-11-0x0000000076EA0000-0x0000000077049000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads