Analysis
- max time kernel
129s - max time network
137s - platform
windows10_x64 - resource
win10v20210410 - submitted
07/07/2021, 07:27
Static task
static1
Behavioral task
behavioral1
Sample
STRATO-AGB 07-07-2021·pdf.exe
Resource
win7v20210410
0 signatures
0 seconds
General
- Target STRATO-AGB 07-07-2021·pdf.exe
- Size 249KB
- Sample210707-bf515vkxcj
- SHA256 6a1be88d091d3365e9343a762f8ef32e88c6c0953efd09b7fdcc6bbf514b2ebd
- MD5 c0d19c0c4abc226521cb265d731a4427
- SHA1 631018572dd0f611e928cc4f6fafdc9024fd1f69
- SHA512 5eba10e871dfdcbb4a94e89916428da18bd9755547bce47855c68043070f0455495636afd471c7be231f2a87ef6e6d50742fb2822c03067eb66a919fb48d5826
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
-
guloader
C2
-
https://drive.google.com/uc?export=download&id=1kLxIRJfJWPCjbZk3pAwZhzoxtNlq163w
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Checks QEMU agent file 2 TTPs 2 IoCs
Checks presence of QEMU agent, possibly to detect virtualization.
description ioc Process File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe STRATO-AGB 07-07-2021·pdf.exe File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe STRATO-AGB 07-07-2021·pdf.exe - Legitimate hosting services abused for malware hosting/C2 1 TTPs
- Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
pid Process 4048 STRATO-AGB 07-07-2021·pdf.exe 2732 STRATO-AGB 07-07-2021·pdf.exe 2732 STRATO-AGB 07-07-2021·pdf.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4048 set thread context of 2732 4048 STRATO-AGB 07-07-2021·pdf.exe 78 - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4048 STRATO-AGB 07-07-2021·pdf.exe - Suspicious behavior: RenamesItself 1 IoCs
pid Process 2732 STRATO-AGB 07-07-2021·pdf.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2732 STRATO-AGB 07-07-2021·pdf.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4048 STRATO-AGB 07-07-2021·pdf.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 4048 wrote to memory of 2732 4048 STRATO-AGB 07-07-2021·pdf.exe 78 PID 4048 wrote to memory of 2732 4048 STRATO-AGB 07-07-2021·pdf.exe 78 PID 4048 wrote to memory of 2732 4048 STRATO-AGB 07-07-2021·pdf.exe 78 PID 4048 wrote to memory of 2732 4048 STRATO-AGB 07-07-2021·pdf.exe 78
Processes
-
C:\Users\Admin\AppData\Local\Temp\STRATO-AGB 07-07-2021·pdf.exe"C:\Users\Admin\AppData\Local\Temp\STRATO-AGB 07-07-2021·pdf.exe"1⤵
- Checks QEMU agent file
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4048 -
C:\Users\Admin\AppData\Local\Temp\STRATO-AGB 07-07-2021·pdf.exe"C:\Users\Admin\AppData\Local\Temp\STRATO-AGB 07-07-2021·pdf.exe"2⤵
- Checks QEMU agent file
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
PID:2732
-