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Analysis
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max time kernel
121s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
07/08/2024, 10:31
Behavioral task
behavioral1
Sample
ad20a5da9acba492406b1117268a7951.apk
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
ad20a5da9acba492406b1117268a7951.apk
Resource
win10v2004-20240802-en
General
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Target
ad20a5da9acba492406b1117268a7951.apk
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Size
91KB
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MD5
ad20a5da9acba492406b1117268a7951
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SHA1
6f4a1ac63e2383a80167899076bc416336a5f908
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SHA256
89c5e17054a661b5cd4562dc7e6e7a1529e6fd91067af6b299bdcef608365b57
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SHA512
33451c723ac9271ab31b76ca77e32f4f4f4432889b7176f04de96cda65140d988c944248a5f379e54ea44d9aca44ad9d394735c4a3da2834e422071b96fa06bc
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SSDEEP
1536:NJc5C7U9KCP6pBQGsHHSXfSLHbxCRwnGpS:NJc51syUQdHyXAbxCanQS
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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System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AcroRd32.exe -
Modifies registry class 9 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_Classes\Local Settings rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\apk_auto_file\ rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\.apk\ = "apk_auto_file" rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\apk_auto_file\shell rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\apk_auto_file\shell\Read\command rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\apk_auto_file rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\.apk rundll32.exe Key created \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\apk_auto_file\shell\Read rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\apk_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\"" rundll32.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 736 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 736 AcroRd32.exe 736 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1932 wrote to memory of 2040 1932 cmd.exe 31 PID 1932 wrote to memory of 2040 1932 cmd.exe 31 PID 1932 wrote to memory of 2040 1932 cmd.exe 31 PID 2040 wrote to memory of 736 2040 rundll32.exe 32 PID 2040 wrote to memory of 736 2040 rundll32.exe 32 PID 2040 wrote to memory of 736 2040 rundll32.exe 32 PID 2040 wrote to memory of 736 2040 rundll32.exe 32
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\ad20a5da9acba492406b1117268a7951.apk1⤵
- Suspicious use of WriteProcessMemory
PID:1932 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\ad20a5da9acba492406b1117268a7951.apk2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2040 -
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\ad20a5da9acba492406b1117268a7951.apk"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:736
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3KB
MD59b4e503183225f376dd35279b93d2eb5
SHA152e06d6719adbf7c2e0fe4d8e0655746858b42a8
SHA2567bac81bb48fb46b34fb204591122141fb4e7f8a159c2212f1c2cab6c0103c652
SHA5124b6fdef87fbb8dc03d35de99c198e575c3d848ad74c2b836557549c7da98d5b56c46e547802f89d176c58ef4e12ea5327a50e765e7f593422cf0326a5e1ea75e