Analysis
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max time kernel
18s -
max time network
30s -
platform
android-9_x86 -
resource
android-x86-arm-20240910-en -
resource tags
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submitted
01-12-2024 22:00
General
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Target
693651f17874a3de1dd86b937351ad23991cc8c9e2fdb0a838958da522cc003c.apk
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Size
7.3MB
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MD5
45c4732acf509ab14c735f04e7fd78d7
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SHA1
1cb284b1e7721c2aef6bd201c267869aaa99e963
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SHA256
693651f17874a3de1dd86b937351ad23991cc8c9e2fdb0a838958da522cc003c
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SHA512
7b9a8dadb1fd0df6f15470592a425a6d79921a62c226e1964bb9580141c8cfed0459d224ab30ca3a978cb2a2ce6c8573f32731aff7b234581bfc2f49497ac3e4
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SSDEEP
98304:0AZ335iSRGOpVKCnSeNe+P5y3XHRsmyAemdpjW:0AZ33rhUgPQ3XHRjTQ
Malware Config
Extracted
octo
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 3 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.calendarfiles_safety81⤵
- 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
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/system/bin/dex2oat --instruction-set=x86 --instruction-set-features=ssse3,-sse4.1,-sse4.2,-avx,-avx2,-popcnt --runtime-arg -Xhidden-api-checks --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=x86 --instruction-set-features=default --inline-max-code-units=0 --compact-dex-level=none --dex-file=/data/user/0/com.calendarfiles_safety8/app_table/edQ.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.calendarfiles_safety8/app_table/oat/x86/edQ.odex --compiler-filter=quicken --class-loader-context=&2⤵
- Loads dropped Dex/Jar
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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
1016B
MD5ca5b8cc714953a89cc9e66885a3d078f
SHA173b30bbd33ddde6eb3d77f5efdf73c3c47ee4cb1
SHA2561894cf9a0a3c987adbb9ec4b66a8968f856633c1e42256be0a7447e53dabe5cf
SHA512b10bd8fef7d5c330e8c38673fd4a0195ce0754497c926e8cd3ed7a2b45de367cb93a1a0ed2f1085d4736a56b6f35bd6c24f4e762dadd42108a4cd80442a047e2
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Filesize
1016B
MD5f6106f056673d307c836bc60af3001fa
SHA18415d7c407f3b2220a999dcea7838ca957b49aab
SHA2567aba2e6134db5a921c817bfa42044f44b50755a6600348eaa3631801a76d3c67
SHA512b304e874e903e57074a58732f61482e144b4ce72e061f5a578b02175ed25275b28d630bc7923ed84648715045ba35aaa82520e8f49e1f0b9d7d23de07259cd5c
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Filesize
307KB
MD54e73947cabb5db3f92ca85004981b754
SHA16d9667fdb0280ed2dcb782b4683e422a51bdc601
SHA2566db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c
SHA512be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69
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Filesize
1KB
MD5b40432c7a45f0e301ee6b998d0f63333
SHA160c533f3b8e848e5a350807e816ce99ece28486c
SHA25664a92a22357c3b2e53064a14a552491c8908bf79b4c8d98604a66d366a3c5e9d
SHA5122706463e584c5179ba910d658cbedc600541a6b4a90a97381354c443474e239573247f05aa1ed80dfff132026dfcc9596809ee984230851ebb4953d8d043a193
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Filesize
1KB
MD5fa3886a77f776b20f175cf23d576b9e1
SHA1985a445f5d14b69e9692df2fe6d32a2ba1460c04
SHA25616c2f636b792a96d72b0d1997f7079e0360e805d88920ce57b4ea801576699f2
SHA512be4eef66fc42699b874dc6cee66d6b68a1f0fd3d3dafb750a64b6b2fdb45087a64cc07150fe3afd12b4b7d2e7c197a44a6c014bcdf5ea2dbea8047ef0d153503
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Filesize
526KB
MD5e717265888cb1b96fd85c2db13be5acb
SHA1f0d984a7d39b1cc2cf3f56ec5c908603938a05a9
SHA256681f7ad1e09d674938f5bfebf9a3fa4045a44d99c61411339e3634b117d9bb60
SHA512fa0d7640117e89ddd7d4098236db347641805007ae780d596bb6b5a7d824003b054929b0a91a9b5f11f330a645e09b533c16fb3f8c95aa9f2de8971226469a8b