Analysis
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max time kernel
21s -
max time network
31s -
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
01-12-2024 21:51
Static task
static1
Behavioral task
behavioral1
Sample
135e417376f55c903a93e171776ef569fc6fa8368be46e2d19dd3f403feff262.apk
Resource
android-x86-arm-20240910-en
General
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Target
135e417376f55c903a93e171776ef569fc6fa8368be46e2d19dd3f403feff262.apk
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Size
7.6MB
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MD5
e8f3a59c4a680e8581cdb9e1209a6924
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SHA1
2cbea5a429fad8f2d62d5ca0d82ccd08e66d4d3b
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SHA256
135e417376f55c903a93e171776ef569fc6fa8368be46e2d19dd3f403feff262
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SHA512
96baac8b302f6dacd0c22368226739ffbdf151dbc181a62a04331c323fd1ce91a1860c4cfad9ba45be36a428622b7133daaa208679e88d047ddf39eed615c3c6
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SSDEEP
98304:wCow3Pql+eNeuFVKTHgeKj7jRsl75iSRGEvqJoOLDH:5ow3ylFUMrj7jRCrdooOX
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/4266-1.dex family_octo -
Loads dropped Dex/Jar 1 TTPs 3 IoCs
Runs executable file dropped to the device during analysis.
ioc pid Process /data/user/0/com.calculator_telephonyr7/app_gift/NW.json 4294 /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.calculator_telephonyr7/app_gift/NW.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.calculator_telephonyr7/app_gift/oat/x86/NW.odex --compiler-filter=quicken --class-loader-context=& /data/user/0/com.calculator_telephonyr7/app_gift/NW.json 4266 com.calculator_telephonyr7 Anonymous-DexFile@0xd5378000-0xd53fb9f4 4266 com.calculator_telephonyr7 -
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.findAccessibilityNodeInfoByAccessibilityId com.calculator_telephonyr7 Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId com.calculator_telephonyr7 -
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.calculator_telephonyr7 -
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.calculator_telephonyr7 -
Queries the mobile country code (MCC) 1 TTPs 1 IoCs
description ioc Process Framework service call com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone com.calculator_telephonyr7 -
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
description ioc Process Framework service call android.app.IActivityManager.registerReceiver com.calculator_telephonyr7 -
Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
description ioc Process Framework API call javax.crypto.Cipher.doFinal com.calculator_telephonyr7 -
Checks CPU information 2 TTPs 1 IoCs
description ioc Process File opened for read /proc/cpuinfo com.calculator_telephonyr7 -
Checks memory information 2 TTPs 1 IoCs
description ioc Process File opened for read /proc/meminfo com.calculator_telephonyr7
Processes
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com.calculator_telephonyr71⤵
- 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
PID:4266 -
/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.calculator_telephonyr7/app_gift/NW.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.calculator_telephonyr7/app_gift/oat/x86/NW.odex --compiler-filter=quicken --class-loader-context=&2⤵
- Loads dropped Dex/Jar
PID:4294
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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
1021B
MD50cb98f65b66023c0e11efdb7041bc314
SHA1eb735ce01758288fdeee4a309dc508a17680e920
SHA25682b5a011d7c434231385286f9e717d58fa00f88fcb4fa9b5ef0d69f8c792e9ab
SHA512bdcbe0d5ebbc5e711f34028e0b212ec70d8da391d16a8a3404de3dfce56a6020ef706e083e2b522e9c1a286c5f917483666f190db1acde24fc9d8b61c42dd871
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Filesize
1021B
MD524de4d4c6d0c358b05f4f7dce4018234
SHA1665e37bbbf08b444ef84e105ce595b0374125114
SHA256b5ac4882bfd0423c4fbcde92dc3e292d24c24eabec1910b7eb34c2db771384de
SHA512e5de64d3f3179cf8bca7fd9a4b225d985bd63408d0f4b771adc79f6038cae4d10860e014e56165f31bd984e3ca4494240c81d9acb136b1172391876d97dd3d16
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Filesize
307KB
MD54e73947cabb5db3f92ca85004981b754
SHA16d9667fdb0280ed2dcb782b4683e422a51bdc601
SHA2566db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c
SHA512be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69
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Filesize
1KB
MD5f5cd800b6da9fb13dad1f89931e50029
SHA1a03d4a094ecd762a540ef134bfa1cae2f9e66c8e
SHA256e5c92b42200dd010076cf6b64f55efea4cf0e56044f165253acf15fa7a1903b9
SHA512810f4299738dc6ab4d4e31323517276f95c438b9404efafd0557f8e3b2984363763b97e9e10bab80dc9daa61fcf4cfed075dc1ab4ae6b66c77b753d70703ca99
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Filesize
1KB
MD54859cc7298a3e78918e297879eed7482
SHA16ec75520a3d80fabba89b564aa8f5dbdab94a4c3
SHA25654c46a5a85846b8f7ca7a2a26d5dc634ff3ff88af570e73bd65ee0d869df2a27
SHA51292adbaa420e6007852651bc0169878e2f78107c986de069f91c94f84390248dead278876e063723b48ad96a00ae7750773f8a01494930ab361fc9db68a9b798c
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Filesize
526KB
MD5b39479b4020eccfc39370b15966c7d9c
SHA16c9df1bcad179514cf46576e3aeb6cb56d07f0c4
SHA25663ca29d1336fff680915a8f17ff5097c4a7f1f8eaa836fae6ab12c27084f0b1d
SHA5127d1a1f0374ef34615bceac53aba08937a804ed53bfe729703213a0226d5eef5ede9d55a70996dcda5d9216744728087ee4ed5e538269ca989b1de0f4477f8c3b