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Analysis
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max time kernel
149s -
max time network
157s -
platform
android-9_x86 -
resource
android-x86-arm-20240910-en -
resource tags
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submitted
20/01/2025, 13:27
General
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Target
file.apk
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Size
4.9MB
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MD5
3aa725662c012f2bf54b993467b2edd5
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SHA1
d2b8d88803c79e218fad64c736ad23c1386f3181
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SHA256
44fbc03f41d9478db9346c22b0d9854a2f2fa39e959a354e26fa8991a0669f12
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SHA512
50a7775daccd555bb716eb0a6c5499f5de6f7d9c96a93b8db8e78fbf33d13dd0f52fd016286f5f47c85246cb59517892df20bde403ac15611771cad03470f45d
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SSDEEP
49152:wWRsEXk0xyNKmY3XjU45iS7xrG+/G0Lf9xjVKScou/GQnzTT63lUmiLctkc:1RsXWyNjY3Xp5iSRG8PVKLPH8lOQf
Malware Config
Extracted
octo
https://8b230a871b7f1ff2a1ad9f9c07d6e67a.info
Signatures
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Octo
Octo is a banking malware with remote access capabilities first seen in April 2022.
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Octo family
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Octo payload 1 IoCs
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Loads dropped Dex/Jar 1 TTPs 1 IoCs
Runs executable file dropped to the device during analysis.
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Makes use of the framework's Accessibility service 4 TTPs 2 IoCs
Retrieves information displayed on the phone screen using AccessibilityService.
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Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps) 1 TTPs
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Queries the phone number (MSISDN for GSM devices) 1 TTPs
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Acquires the wake lock 1 IoCs
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Makes use of the framework's foreground persistence service 1 TTPs 1 IoCs
Application may abuse the framework's foreground service to continue running in the foreground.
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Queries the mobile country code (MCC) 1 TTPs 1 IoCs
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Queries the unique device ID (IMEI, MEID, IMSI) 1 TTPs
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Reads information about phone network operator. 1 TTPs
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Registers a broadcast receiver at runtime (usually for listening for system events) 1 TTPs 1 IoCs
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Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
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Checks CPU information 2 TTPs 1 IoCs
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Checks memory information 2 TTPs 1 IoCs
Processes
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com.nstar5machinemodules1⤵
- Loads dropped Dex/Jar
- Makes use of the framework's Accessibility service
- Acquires the wake lock
- Makes use of the framework's foreground persistence service
- Queries the mobile country code (MCC)
- Registers a broadcast receiver at runtime (usually for listening for system events)
- Uses Crypto APIs (Might try to encrypt user data)
- Checks CPU information
- Checks memory information
Network
MITRE ATT&CK Mobile v15
Persistence
Event Triggered Execution
1Broadcast Receivers
1Foreground Persistence
1Defense Evasion
Download New Code at Runtime
1Foreground Persistence
1Input Injection
1Virtualization/Sandbox Evasion
2System Checks
2Discovery
Software Discovery
1Security Software Discovery
1System Information Discovery
2System Network Configuration Discovery
4Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
48B
MD5046a414913add6f5bb60072c7db819b6
SHA1451ee4f6809260aec622d772fd329c7d0297a842
SHA256b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a
SHA5124e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c
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Filesize
307KB
MD54e73947cabb5db3f92ca85004981b754
SHA16d9667fdb0280ed2dcb782b4683e422a51bdc601
SHA2566db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c
SHA512be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69
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Filesize
526KB
MD50ca0ac7aaa3bdf2153febb80fc2318aa
SHA17dd749da58a973266c035aefb762dc9c0d7b42e3
SHA25687df9c07bdd2706460228a00c7dc5bf75493d89b8606506f93c24e21aa7e8ee3
SHA5124f4efd3a13771b5442c949f4cc1fb2baf20e76653968f2bd1b62bb6a141f69ef13c2de4d5fb4170b3f2fdc29e2d9e0fb4ce90e9e6c662e9443070d998b194a7b