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Analysis
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max time kernel
17s -
max time network
30s -
platform
android-9_x86 -
resource
android-x86-arm-20240910-en -
resource tags
arch:armarch:x86image:android-x86-arm-20240910-enlocale:en-usos:android-9-x86system -
submitted
11/01/2025, 16:25
Static task
static1
Behavioral task
behavioral1
Sample
67bf289d7bc92aa9024960241de0cb100f6fee6b5fc26b978c87485c0defbff4.apk
Resource
android-x86-arm-20240910-en
General
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Target
67bf289d7bc92aa9024960241de0cb100f6fee6b5fc26b978c87485c0defbff4.apk
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Size
7.6MB
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MD5
0cb90225a90c7d79be685a7760de96bb
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SHA1
ea3e0b13cf63ddb334ba8e5e58f595c6492f76b9
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SHA256
67bf289d7bc92aa9024960241de0cb100f6fee6b5fc26b978c87485c0defbff4
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SHA512
403ea459fdd893adc7e0deeb360baf4ce42b2884d734f9cfb799d0f2665ff10e2522f3940436462cf2255b822903ad1647fa6f9a934717f52a7ecdec74eb67f8
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SSDEEP
196608:eMSDR3X1UAr+RzjpIlJtQILRG/exouR2ACIdUU5B:eMSnFrtlaWxxRgIdd
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
resource yara_rule behavioral1/memory/4340-2.dex family_octo -
Loads dropped Dex/Jar 1 TTPs 4 IoCs
Runs executable file dropped to the device during analysis.
ioc pid Process /data/user/0/com.biims94_services/app_dex/classes.dex 4340 com.biims94_services /data/user/0/com.biims94_services/app_dex/classes.dex 4365 /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.biims94_services/app_dex/classes.dex --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.biims94_services/app_dex/oat/x86/classes.odex --compiler-filter=quicken --class-loader-context=& /data/user/0/com.biims94_services/app_dex/classes.dex 4340 com.biims94_services Anonymous-DexFile@0xccbf8000-0xccc7b6f8 4340 com.biims94_services -
Makes use of the framework's Accessibility service 4 TTPs 2 IoCs
Retrieves information displayed on the phone screen using AccessibilityService.
description ioc Process Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId com.biims94_services Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId com.biims94_services -
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
description ioc Process Framework service call android.os.IPowerManager.acquireWakeLock com.biims94_services -
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.
description ioc Process Framework service call android.app.IActivityManager.setServiceForeground com.biims94_services -
Queries the mobile country code (MCC) 1 TTPs 1 IoCs
description ioc Process Framework service call com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone com.biims94_services -
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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Requests disabling of battery optimizations (often used to enable hiding in the background). 1 TTPs 1 IoCs
description ioc Process Intent action android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS com.biims94_services -
Registers a broadcast receiver at runtime (usually for listening for system events) 1 TTPs 1 IoCs
description ioc Process Framework service call android.app.IActivityManager.registerReceiver com.biims94_services -
Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
description ioc Process Framework API call javax.crypto.Cipher.doFinal com.biims94_services -
Checks CPU information 2 TTPs 1 IoCs
description ioc Process File opened for read /proc/cpuinfo com.biims94_services -
Checks memory information 2 TTPs 1 IoCs
description ioc Process File opened for read /proc/meminfo com.biims94_services
Processes
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com.biims94_services1⤵
- 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)
- Requests disabling of battery optimizations (often used to enable hiding in the background).
- 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
PID:4340 -
/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.biims94_services/app_dex/classes.dex --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.biims94_services/app_dex/oat/x86/classes.odex --compiler-filter=quicken --class-loader-context=&2⤵
- Loads dropped Dex/Jar
PID:4365
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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
1Hide Artifacts
1User Evasion
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
1KB
MD5d6e6538e122ca7e5676dca16d45a64df
SHA1cef799aa797047c73f40721b2567be6ec5908630
SHA256363e07988e6b23e002560e6911954c255b644d8fcbf625fae337e570d1d02523
SHA512733723bf7d5c1093d9c28b5a7ed9e9bcc4555ef8aeb3d996385cea6cec2c0c7bfa31732194ffd7ea42b1d8d0eac4c80c7969242ca1cba3b3fabe33e97c584bfa
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Filesize
1KB
MD5c7b4ddaa20d8c8b9a4505eea066ccddd
SHA177bd40f2e2f1e0c40dace725eaa49d8f8cfb1308
SHA256c4f9fed03e3e9eff8ce5fdf1067b5e08bfa6eaac6e793d72dd10af3d07ce8833
SHA512655d6b1bfcd3494e12c7cb50241da2c32fb3aa27b0b332eafec4405ab66f09f278539947a7eeed116ca1227de4b0de30ad7e5711e37edb66db7e281737ab274c
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Filesize
1KB
MD5ffd9277120fb5f181612b0e04b5815f2
SHA1862dba32472e144e96a1844f8ea352a04e6a8efd
SHA25686535d657569a6a536f57065db692a6ddfffc0d1660057a742ea1492a9479cc9
SHA51249c3e377296a39c669de403e49ca15a04e2eebf1cffa20977a18a34b7df6acea83b988dc0c55c746d9e98708b30dc616ecb830ac4ce9e3ed32c1c86e640f5246
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Filesize
307KB
MD54e73947cabb5db3f92ca85004981b754
SHA16d9667fdb0280ed2dcb782b4683e422a51bdc601
SHA2566db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c
SHA512be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69
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Filesize
1KB
MD5c05639bfbdc807a243ae9c4e0ddc1153
SHA1fdfd65cd95d1f9f565455eba1d99b6d91d88067e
SHA256d36e1552ca3279a519ccdc9c8541a5a25982d9e1ba1d45d0de217de6b9657c62
SHA512907a08a4c8bb4ccd43c90d54bb5ac0da1d689f02f8bb8c1944a2aae3953ee886beb6b49b3de25ffa27fa62f9b32356a43a469d4aa6b54c15f0a4124e7c77dee4
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Filesize
525KB
MD5b69efce6d5f134dee9d04288fe8728ac
SHA15548b07d001d10c204668f45303dccafd5ea20df
SHA25636d47856a54911d94ed6d9f38d5052f382362130f2117972660f2fb9c7b3093a
SHA5127603c9387efe151fc307bfcc3fdfcaaa7440082a8e6980f571d8aa71bb5822da01fa4916d8b34ad7d072814ef8f584b207db79ddb07a9c384a63c06496f9ee25