guloader | ae83f208925ec791bd10f37e0cd1bfc98473ea586c4814288a243c7d579c2e55

Analysis

max time kernel
148s
max time network
135s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08-10-2024 08:48

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General

Target

20a43f57dc505ffac0da8b49d91fd322_JaffaCakes118.exe
Size

152KB
MD5

20a43f57dc505ffac0da8b49d91fd322
SHA1

ee9132b380e1307a283dcca9a7e54fcf333aa4d6
SHA256

ae83f208925ec791bd10f37e0cd1bfc98473ea586c4814288a243c7d579c2e55
SHA512

c10d6dfec99f6b91235d7f619e12ef56d432faa36e53da9d4469dad87ad5206628992d2b7258b48d0e1dfa5a9d011cbd2f421bdd2d48f9c72ef11e45addea625
SSDEEP

3072:/xEJpxEqxE2wzTvvfQ+2U4gzEy2fAC4wrw9xEAxEKxEJ:pEJ7EAE2l3Dp6EmEgEJ

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	20a43f57dc505ffac0da8b49d91fd322_JaffaCakes118.exe
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	20a43f57dc505ffac0da8b49d91fd322_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
2668	20a43f57dc505ffac0da8b49d91fd322_JaffaCakes118.exe
2768	20a43f57dc505ffac0da8b49d91fd322_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2668 set thread context of 2768	2668	20a43f57dc505ffac0da8b49d91fd322_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	20a43f57dc505ffac0da8b49d91fd322_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	20a43f57dc505ffac0da8b49d91fd322_JaffaCakes118.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2668	20a43f57dc505ffac0da8b49d91fd322_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2668	20a43f57dc505ffac0da8b49d91fd322_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 2768	2668	20a43f57dc505ffac0da8b49d91fd322_JaffaCakes118.exe	31
PID 2668 wrote to memory of 2768	2668	20a43f57dc505ffac0da8b49d91fd322_JaffaCakes118.exe	31
PID 2668 wrote to memory of 2768	2668	20a43f57dc505ffac0da8b49d91fd322_JaffaCakes118.exe	31
PID 2668 wrote to memory of 2768	2668	20a43f57dc505ffac0da8b49d91fd322_JaffaCakes118.exe	31
PID 2668 wrote to memory of 2768	2668	20a43f57dc505ffac0da8b49d91fd322_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\20a43f57dc505ffac0da8b49d91fd322_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\20a43f57dc505ffac0da8b49d91fd322_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:2668
- C:\Users\Admin\AppData\Local\Temp\20a43f57dc505ffac0da8b49d91fd322_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\20a43f57dc505ffac0da8b49d91fd322_JaffaCakes118.exe"
  2⤵
  - Checks QEMU agent file
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:2768

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/2668-2-0x00000000002E0000-0x00000000002F3000-memory.dmp

Filesize
76KB

Download
memory/2668-3-0x00000000770C1000-0x00000000771C2000-memory.dmp

Filesize
1.0MB

Download
memory/2668-9-0x00000000002E0000-0x00000000002F3000-memory.dmp

Filesize
76KB

Download
memory/2668-8-0x00000000002E0000-0x00000000002F3000-memory.dmp

Filesize
76KB

Download
memory/2668-7-0x00000000772B0000-0x0000000077386000-memory.dmp

Filesize
856KB

Download
memory/2668-6-0x00000000770C0000-0x0000000077269000-memory.dmp

Filesize
1.7MB

Download
memory/2768-4-0x0000000000400000-0x0000000000553000-memory.dmp

Filesize
1.3MB

Download
memory/2768-10-0x00000000770C0000-0x0000000077269000-memory.dmp

Filesize
1.7MB

Download
memory/2768-29-0x0000000000400000-0x0000000000553000-memory.dmp

Filesize
1.3MB

Download