Analysis
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max time kernel
149s -
max time network
153s -
platform
windows10-1703_x64 -
resource
win10-20230703-en -
resource tags
arch:x64arch:x86image:win10-20230703-enlocale:en-usos:windows10-1703-x64system -
submitted
13/07/2023, 20:18
Static task
static1
Behavioral task
behavioral1
Sample
4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe
Resource
win10-20230703-en
General
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Target
4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe
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Size
507KB
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MD5
7f6e2a0959481ac955ffa5c591a1e25e
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SHA1
02ce117dc8c9b08e381aaccf102766f436166597
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SHA256
4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946
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SHA512
928ccaaf714cdbe7fa60925d5b8f351ef9d2ea080047e3bc5678975c50d3ec5fd74c371279aca0980704f38324b832b4236811aab2ae93598884f61a9ac32d88
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SSDEEP
12288:9FKBG73lOUG2H7zS8zjDMpOltJJCSJEM1oPa7XK:BrlMa7zbzPMWJJVv11a
Malware Config
Signatures
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Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
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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 4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe 4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe -
Loads dropped DLL 1 IoCs
pid Process 3576 4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 3576 4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe 4936 4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3576 set thread context of 4936 3576 4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe 70 -
Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\Fonts\cardiotrophia\Kommastningerne.gen 4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 3576 4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3576 wrote to memory of 4936 3576 4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe 70 PID 3576 wrote to memory of 4936 3576 4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe 70 PID 3576 wrote to memory of 4936 3576 4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe 70 PID 3576 wrote to memory of 4936 3576 4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe 70
Processes
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C:\Users\Admin\AppData\Local\Temp\4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe"C:\Users\Admin\AppData\Local\Temp\4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe"1⤵
- Checks QEMU agent file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3576 -
C:\Users\Admin\AppData\Local\Temp\4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe"C:\Users\Admin\AppData\Local\Temp\4781b5ca739a280c011844dabab8fb008340ad82efa70486edc34e8de8a10946.exe"2⤵
- Checks QEMU agent file
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:4936
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
11KB
MD5a4dd044bcd94e9b3370ccf095b31f896
SHA117c78201323ab2095bc53184aa8267c9187d5173
SHA2562e226715419a5882e2e14278940ee8ef0aa648a3ef7af5b3dc252674111962bc
SHA51287335a43b9ca13e1300c7c23e702e87c669e2bcf4f6065f0c684fc53165e9c1f091cc4d79a3eca3910f0518d3b647120ac0be1a68eaade2e75eaa64adfc92c5a