Analysis
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max time kernel
141s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20230712-en -
resource tags
arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system -
submitted
13/07/2023, 17:30
Static task
static1
Behavioral task
behavioral1
Sample
bill payment notice #43782 PDF.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
bill payment notice #43782 PDF.exe
Resource
win10v2004-20230703-en
General
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Target
bill payment notice #43782 PDF.exe
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Size
380KB
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MD5
9c44cdb43340fc9b7e3de6f4e0b95b29
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SHA1
e462d5b74202a1156a005ba5c032af092b3622fa
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SHA256
e712635bcf6dfae53c0b3679f053bd3a4e509e26295c0d3991887abc3e37f5b8
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SHA512
05dc10752c3340d1ba689868e0e7359f5b414f81bcbea9d4415a3a5035d80a0f3e028de1c506c33bfa6d27d9ce8e3867b549e5c4255f970ccdc780d58e78ea7b
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SSDEEP
6144:K4t6LsvuyXOLT/plOJb0r6iSeysFkHnhHMQ/4iw67Jf:Kkvz6/KJ06iSeLkHnyKAoJ
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 bill payment notice #43782 PDF.exe File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe bill payment notice #43782 PDF.exe -
Loads dropped DLL 2 IoCs
pid Process 2496 bill payment notice #43782 PDF.exe 2496 bill payment notice #43782 PDF.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 NtCreateThreadExHideFromDebugger 1 IoCs
pid Process 2860 bill payment notice #43782 PDF.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 2496 bill payment notice #43782 PDF.exe 2860 bill payment notice #43782 PDF.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2496 set thread context of 2860 2496 bill payment notice #43782 PDF.exe 30 -
Drops file in Program Files directory 1 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Muhamedanere\Falden\Pachylosis.ini bill payment notice #43782 PDF.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\Amintor\Idioreflex\Syrnende\Rosentrsskrinets.Adl248 bill payment notice #43782 PDF.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 2748 2860 WerFault.exe 30 -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2496 bill payment notice #43782 PDF.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2496 wrote to memory of 2860 2496 bill payment notice #43782 PDF.exe 30 PID 2496 wrote to memory of 2860 2496 bill payment notice #43782 PDF.exe 30 PID 2496 wrote to memory of 2860 2496 bill payment notice #43782 PDF.exe 30 PID 2496 wrote to memory of 2860 2496 bill payment notice #43782 PDF.exe 30 PID 2496 wrote to memory of 2860 2496 bill payment notice #43782 PDF.exe 30 PID 2860 wrote to memory of 2748 2860 bill payment notice #43782 PDF.exe 33 PID 2860 wrote to memory of 2748 2860 bill payment notice #43782 PDF.exe 33 PID 2860 wrote to memory of 2748 2860 bill payment notice #43782 PDF.exe 33 PID 2860 wrote to memory of 2748 2860 bill payment notice #43782 PDF.exe 33
Processes
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C:\Users\Admin\AppData\Local\Temp\bill payment notice #43782 PDF.exe"C:\Users\Admin\AppData\Local\Temp\bill payment notice #43782 PDF.exe"1⤵
- Checks QEMU agent file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2496 -
C:\Users\Admin\AppData\Local\Temp\bill payment notice #43782 PDF.exe"C:\Users\Admin\AppData\Local\Temp\bill payment notice #43782 PDF.exe"2⤵
- Checks QEMU agent file
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of WriteProcessMemory
PID:2860 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2860 -s 4883⤵
- Program crash
PID:2748
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
11KB
MD517ed1c86bd67e78ade4712be48a7d2bd
SHA11cc9fe86d6d6030b4dae45ecddce5907991c01a0
SHA256bd046e6497b304e4ea4ab102cab2b1f94ce09bde0eebba4c59942a732679e4eb
SHA5120cbed521e7d6d1f85977b3f7d3ca7ac34e1b5495b69fd8c7bfa1a846baf53b0ecd06fe1ad02a3599082ffacaf8c71a3bb4e32dec05f8e24859d736b828092cd5
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Filesize
11KB
MD517ed1c86bd67e78ade4712be48a7d2bd
SHA11cc9fe86d6d6030b4dae45ecddce5907991c01a0
SHA256bd046e6497b304e4ea4ab102cab2b1f94ce09bde0eebba4c59942a732679e4eb
SHA5120cbed521e7d6d1f85977b3f7d3ca7ac34e1b5495b69fd8c7bfa1a846baf53b0ecd06fe1ad02a3599082ffacaf8c71a3bb4e32dec05f8e24859d736b828092cd5
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Filesize
11KB
MD517ed1c86bd67e78ade4712be48a7d2bd
SHA11cc9fe86d6d6030b4dae45ecddce5907991c01a0
SHA256bd046e6497b304e4ea4ab102cab2b1f94ce09bde0eebba4c59942a732679e4eb
SHA5120cbed521e7d6d1f85977b3f7d3ca7ac34e1b5495b69fd8c7bfa1a846baf53b0ecd06fe1ad02a3599082ffacaf8c71a3bb4e32dec05f8e24859d736b828092cd5