guloader | fc542972fb9da1997a2c9192aa75fbe3fda4213c514ccfd8aab031d0e73e1653

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-12-2024 21:23

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General

Target

JaffaCakes118_fc542972fb9da1997a2c9192aa75fbe3fda4213c514ccfd8aab031d0e73e1653.exe
Size

168KB
MD5

d14f6006092df0f6cbab4a63dc311e87
SHA1

091a3eed5d7b051decbab251ac9c1cdc51391012
SHA256

fc542972fb9da1997a2c9192aa75fbe3fda4213c514ccfd8aab031d0e73e1653
SHA512

49b88e2f71ccf3e32c0660074a9adbb0b3bc8a15d792276a275949e00f6aeaab336f327cd9114e1387c42c558a06dcb0afb73a7195dfdb91d909d38a8d127bc0
SSDEEP

3072:qmtFcde+TnU2dv/0OE3RfmZ8KtPEGP+D6THectFc:btKde6nvxsfmGKP2CectK

Score

10^/10

guloader discovery downloader persistence

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_fc542972fb9da1997a2c9192aa75fbe3fda4213c514ccfd8aab031d0e73e1653.exe
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	ieinstal.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Depotskru6 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Gasap7\\lands.exe"	ieinstal.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4572	JaffaCakes118_fc542972fb9da1997a2c9192aa75fbe3fda4213c514ccfd8aab031d0e73e1653.exe
2948	ieinstal.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4572 set thread context of 2948	4572	JaffaCakes118_fc542972fb9da1997a2c9192aa75fbe3fda4213c514ccfd8aab031d0e73e1653.exe	83

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_fc542972fb9da1997a2c9192aa75fbe3fda4213c514ccfd8aab031d0e73e1653.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ieinstal.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4572	JaffaCakes118_fc542972fb9da1997a2c9192aa75fbe3fda4213c514ccfd8aab031d0e73e1653.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4572	JaffaCakes118_fc542972fb9da1997a2c9192aa75fbe3fda4213c514ccfd8aab031d0e73e1653.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4572 wrote to memory of 2948	4572	JaffaCakes118_fc542972fb9da1997a2c9192aa75fbe3fda4213c514ccfd8aab031d0e73e1653.exe	83
PID 4572 wrote to memory of 2948	4572	JaffaCakes118_fc542972fb9da1997a2c9192aa75fbe3fda4213c514ccfd8aab031d0e73e1653.exe	83
PID 4572 wrote to memory of 2948	4572	JaffaCakes118_fc542972fb9da1997a2c9192aa75fbe3fda4213c514ccfd8aab031d0e73e1653.exe	83
PID 4572 wrote to memory of 2948	4572	JaffaCakes118_fc542972fb9da1997a2c9192aa75fbe3fda4213c514ccfd8aab031d0e73e1653.exe	83

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fc542972fb9da1997a2c9192aa75fbe3fda4213c514ccfd8aab031d0e73e1653.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fc542972fb9da1997a2c9192aa75fbe3fda4213c514ccfd8aab031d0e73e1653.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:4572
- C:\Program Files (x86)\internet explorer\ieinstal.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fc542972fb9da1997a2c9192aa75fbe3fda4213c514ccfd8aab031d0e73e1653.exe"
  2⤵
  - Checks QEMU agent file
  - Adds Run key to start application
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:2948

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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

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Downloads

memory/2948-5-0x0000000000C70000-0x0000000000D70000-memory.dmp

Filesize
1024KB

Download
memory/2948-6-0x0000000000C70000-0x0000000000D70000-memory.dmp

Filesize
1024KB

Download
memory/2948-8-0x0000000077CC1000-0x0000000077DE1000-memory.dmp

Filesize
1.1MB

Download
memory/2948-10-0x0000000000C70000-0x0000000000D70000-memory.dmp

Filesize
1024KB

Download
memory/4572-2-0x0000000002190000-0x00000000021A1000-memory.dmp

Filesize
68KB

Download
memory/4572-3-0x0000000077CC1000-0x0000000077DE1000-memory.dmp

Filesize
1.1MB

Download
memory/4572-4-0x0000000077CC1000-0x0000000077DE1000-memory.dmp

Filesize
1.1MB

Download
memory/4572-7-0x0000000002190000-0x00000000021A1000-memory.dmp

Filesize
68KB

Download
memory/4572-11-0x0000000002190000-0x00000000021A1000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads