Analysis
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max time kernel
118s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
26-05-2024 12:24
Static task
static1
Behavioral task
behavioral1
Sample
start_soffice.sh
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
start_soffice.sh
Resource
win10v2004-20240426-en
General
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Target
start_soffice.sh
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Size
143B
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MD5
8c8e14248c404ec7397adea9fadf574e
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SHA1
b79181aad60c61e02b43ab8c49ffdd50857a1b68
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SHA256
acf76d08e1769ed30a3be4b79fdec39208e1c8340bbcfa692021cf5c9befdd20
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SHA512
9f99b33c23204018190746a873f3e3c27ae1c152846b46685715c1ea4d0c837cfeb74c438197741f79d9b66c95551498d7dccbea83057a1d141a3a4a8327f54b
Malware Config
Signatures
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 9 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\.sh\ = "sh_auto_file" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\sh_auto_file\shell\Read\command rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\sh_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\"" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_Classes\Local Settings rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\sh_auto_file\ rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\sh_auto_file\shell\Read rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\sh_auto_file\shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\sh_auto_file rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\.sh rundll32.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2872 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2872 AcroRd32.exe 2872 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2988 wrote to memory of 2652 2988 cmd.exe 29 PID 2988 wrote to memory of 2652 2988 cmd.exe 29 PID 2988 wrote to memory of 2652 2988 cmd.exe 29 PID 2652 wrote to memory of 2872 2652 rundll32.exe 30 PID 2652 wrote to memory of 2872 2652 rundll32.exe 30 PID 2652 wrote to memory of 2872 2652 rundll32.exe 30 PID 2652 wrote to memory of 2872 2652 rundll32.exe 30
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\start_soffice.sh1⤵
- Suspicious use of WriteProcessMemory
PID:2988 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\start_soffice.sh2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2652 -
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\start_soffice.sh"3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2872
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3KB
MD5d4372964d75c05eda4c75a37b7cfd40c
SHA1ba003f45e42d554f53272dbc85d7acc86969967a
SHA256916ae637838b4dd701bde1bc6e0b1e4b0bf4b2f467a2062dd1f2f4b36eb3a383
SHA51279486889ebb38ba0d41c5f08e15f3492dfff06f37bcc4d089dd2a753a658c83e2eb5dd66e767ba165c503966697201163847d97beedfa3c28c0de02e63299e80