guloader | 7c58072332e83901d512567fec2eecacc2d29015a7ffcb2ecc8381b97cb8c998

Analysis

max time kernel
147s
max time network
137s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
09-10-2024 06:16

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General

Target

2c513c65f7f72438cc02d1bbd86e4e21_JaffaCakes118.exe
Size

148KB
MD5

2c513c65f7f72438cc02d1bbd86e4e21
SHA1

8749f479771479c4805e2d495b7fadb3e509e047
SHA256

7c58072332e83901d512567fec2eecacc2d29015a7ffcb2ecc8381b97cb8c998
SHA512

91e29e1ab57845f3081cb1291d65210c9c3612f8fda93aa189a357c2b92bb4c0f72e439c7cb9fec11f4b9ad4a31f5aa2760a8e370763b777f0fc32236b5c2241
SSDEEP

1536:d8YX1xRhdA1l1Uf1msyJIS5YPdby5mxlr1gbtV9DwJAM:jFLuv81JDuYle56ran5g

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	2c513c65f7f72438cc02d1bbd86e4e21_JaffaCakes118.exe
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	2c513c65f7f72438cc02d1bbd86e4e21_JaffaCakes118.exe

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

Web Service

T1102

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

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2972	2c513c65f7f72438cc02d1bbd86e4e21_JaffaCakes118.exe
2344	2c513c65f7f72438cc02d1bbd86e4e21_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2972 set thread context of 2344	2972	2c513c65f7f72438cc02d1bbd86e4e21_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	2c513c65f7f72438cc02d1bbd86e4e21_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2c513c65f7f72438cc02d1bbd86e4e21_JaffaCakes118.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2972	2c513c65f7f72438cc02d1bbd86e4e21_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2972	2c513c65f7f72438cc02d1bbd86e4e21_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2972 wrote to memory of 2344	2972	2c513c65f7f72438cc02d1bbd86e4e21_JaffaCakes118.exe	31
PID 2972 wrote to memory of 2344	2972	2c513c65f7f72438cc02d1bbd86e4e21_JaffaCakes118.exe	31
PID 2972 wrote to memory of 2344	2972	2c513c65f7f72438cc02d1bbd86e4e21_JaffaCakes118.exe	31
PID 2972 wrote to memory of 2344	2972	2c513c65f7f72438cc02d1bbd86e4e21_JaffaCakes118.exe	31
PID 2972 wrote to memory of 2344	2972	2c513c65f7f72438cc02d1bbd86e4e21_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\2c513c65f7f72438cc02d1bbd86e4e21_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\2c513c65f7f72438cc02d1bbd86e4e21_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:2972
- C:\Users\Admin\AppData\Local\Temp\2c513c65f7f72438cc02d1bbd86e4e21_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\2c513c65f7f72438cc02d1bbd86e4e21_JaffaCakes118.exe"
  2⤵
  - Checks QEMU agent file
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:2344

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/2344-5-0x0000000000400000-0x0000000000553000-memory.dmp

Filesize
1.3MB

Download
memory/2344-8-0x0000000077910000-0x0000000077AB9000-memory.dmp

Filesize
1.7MB

Download
memory/2344-25-0x0000000000400000-0x0000000000553000-memory.dmp

Filesize
1.3MB

Download
memory/2972-2-0x0000000000250000-0x0000000000263000-memory.dmp

Filesize
76KB

Download
memory/2972-3-0x0000000077911000-0x0000000077A12000-memory.dmp

Filesize
1.0MB

Download
memory/2972-4-0x0000000077910000-0x0000000077AB9000-memory.dmp

Filesize
1.7MB

Download
memory/2972-7-0x0000000000250000-0x0000000000263000-memory.dmp

Filesize
76KB

Download