Analysis
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max time kernel
20s -
max time network
35s -
platform
android_x86 -
resource
android-x86-arm-20240624-en -
resource tags
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submitted
28-10-2024 15:17
General
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Target
c44a4a35a693037e4a2da1ff9896c9bed000dee87261b8f3334d22b3d87cfe40.apk
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Size
7.4MB
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MD5
85c297eb52e98d25502b82da2c2ab5c2
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SHA1
5254e1ba923bc8babc8126c0c03bf074a7684006
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SHA256
c44a4a35a693037e4a2da1ff9896c9bed000dee87261b8f3334d22b3d87cfe40
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SHA512
5facb55f6f3c296de6e62c019e38c24b55607c3fad349d091f045ca56321ae3c31cd899d5e657f58ad4da0d484d6e6594f96c8106a1d9129777cc69692f94892
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SSDEEP
98304:C684ebk3XSVKK65iSRGt3AIeNeQWS4Rsha:C9Lg3XSUZr1WS4Rf
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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Checks Android system properties for emulator presence. 1 TTPs 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.eimoverbroadcast641⤵
- Checks Android system properties for emulator presence.
- 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.eimoverbroadcast64/app_verify/wxXlf.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.eimoverbroadcast64/app_verify/oat/x86/wxXlf.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
3System Checks
3Discovery
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
1007B
MD5f2b8479944b4eac60d8781868a92090b
SHA1317007326721717c3b111a930a93ddf424cecb5f
SHA256f0cddcde0ee4675e19b18492a52ef2187d47918102e97fc1c6de96ea8fb2e6ac
SHA512803e310cb4f481405da0645fba806d3bd3a039334fe158c4ff4cd0738f4cda4afb54e684b9a3933bd2a614e3e7295c06421f54469b940f3f83b01a318f6b770b
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Filesize
1007B
MD51c0a923a207f64d67470c88c7f8495d0
SHA147967ce9cf798ca1fc56f89e9b1aea59573640b1
SHA256ce69a38e2389d5c08489821c08a7d63d854345a645a899e7e008cf31c6847f68
SHA51299a4b77a137489a82be279af381deddd05051fafe35d1ba0b7b7eca267b9abc2a7c43e4647f17a6e8b9034e0a7b8dc28ca58e73fcb52ed82442f248e6410e8cb
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Filesize
307KB
MD54e73947cabb5db3f92ca85004981b754
SHA16d9667fdb0280ed2dcb782b4683e422a51bdc601
SHA2566db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c
SHA512be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69
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Filesize
1KB
MD5e6ae1814eb1420b490aba21539adecd9
SHA148339c46748826fd4d6eeeade0cb528ddd4ac475
SHA25692fe3912477ee982e1e41e922d8ddf5bfb943575d4991fba65c9d1ab514f3fa0
SHA512254633f652b5314461ca2fba980a9dcd94c595223694c0dec602148c9012ab86c52803ef25294e9a6de554bd270444f69ba49b538dae19d8efc78829cd3c35d7
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Filesize
1KB
MD521edfd79280193c921dc163c314209aa
SHA14386075b2a1e9c0ffd342b9e871a145ae4ba4eee
SHA256350154084feeaa1d855e6a7f3388e57748ead2809d087d59976696fa7c4f5f58
SHA5120877641b93a75c942d4b3c85c11d64f0b802c349b502c7d5bfb89559fb01e45bceb3469dd5c543e6f252d2322295cfd69738cc04b97f1ba1318981b61274d20c
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Filesize
526KB
MD5d3e03342fd5b3a8e6c5cb4a11d9f3e1c
SHA153310507f943ee8b60ab28007d1fd3c886c567b5
SHA256a2418d1c8d7196a2b75ec1c497c51a55dbe6dff78a5682a5b098a77c849e66cd
SHA512b338729a9c4224de8ed531fb56434eb5d27a4546fba3686852dad9972147d0066e645fe9f87d504ecba940de1eb506a8127ffcfbaf3fca76b5ffc7d53246834b