Analysis
- max time kernel
111s - max time network
150s - platform
windows10_x64 - resource
win10v20210408 - submitted
18/06/2021, 02:32
Static task
static1
Behavioral task
behavioral1
Sample
RFQ T2021-000615 18-06-2021·pdf.exe
Resource
win7v20210408
0 signatures
0 seconds
General
- Target RFQ T2021-000615 18-06-2021·pdf.exe
- Size 141KB
- Sample210618-692d5bvmp2
- SHA256 628dfd34daff8a0bf381c3bdf5a106ed0de213d6aabfd68e3f3b2276afb0e58b
- MD5 2252c10dac018b75c4d7aa12b96d178c
- SHA1 1beb14d8e884c0b18682bed85b908aa6935474dc
- SHA512 9afb55de4385db501eac8e6bf242563b93da0217eb547ba9354c18d712e14639c47d09e76173f231cbc347a417715a39252be8a8d0819d05d915858e155e7c4a
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
-
guloader
C2
-
https://drive.google.com/uc?export=download&id=1t6bCf6ayEMFIXyzY0Q1ZAo46QFsprZxv
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 RFQ T2021-000615 18-06-2021·pdf.exe File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe RFQ T2021-000615 18-06-2021·pdf.exe - Legitimate hosting services abused for malware hosting/C2 1 TTPs
- Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
pid Process 416 RFQ T2021-000615 18-06-2021·pdf.exe 2300 RFQ T2021-000615 18-06-2021·pdf.exe 2300 RFQ T2021-000615 18-06-2021·pdf.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 416 set thread context of 2300 416 RFQ T2021-000615 18-06-2021·pdf.exe 78 - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 416 RFQ T2021-000615 18-06-2021·pdf.exe - Suspicious behavior: RenamesItself 1 IoCs
pid Process 2300 RFQ T2021-000615 18-06-2021·pdf.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2300 RFQ T2021-000615 18-06-2021·pdf.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 416 RFQ T2021-000615 18-06-2021·pdf.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 416 wrote to memory of 2300 416 RFQ T2021-000615 18-06-2021·pdf.exe 78 PID 416 wrote to memory of 2300 416 RFQ T2021-000615 18-06-2021·pdf.exe 78 PID 416 wrote to memory of 2300 416 RFQ T2021-000615 18-06-2021·pdf.exe 78 PID 416 wrote to memory of 2300 416 RFQ T2021-000615 18-06-2021·pdf.exe 78
Processes
-
C:\Users\Admin\AppData\Local\Temp\RFQ T2021-000615 18-06-2021·pdf.exe"C:\Users\Admin\AppData\Local\Temp\RFQ T2021-000615 18-06-2021·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:416 -
C:\Users\Admin\AppData\Local\Temp\RFQ T2021-000615 18-06-2021·pdf.exe"C:\Users\Admin\AppData\Local\Temp\RFQ T2021-000615 18-06-2021·pdf.exe"2⤵
- Checks QEMU agent file
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
PID:2300
-