Analysis
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max time kernel
137s -
max time network
143s -
platform
android_x86 -
resource
android-x86-arm-20240624-en -
resource tags
androidarch:armarch:x86image:android-x86-arm-20240624-enlocale:en-usos:android-9-x86system -
submitted
11-10-2024 09:21
Static task
static1
Behavioral task
behavioral1
Sample
98e6fa309945a18befeb715cb8992b9e8bc41908ff13fa5e9eeedd733bcc8bb0.apk
Resource
android-x86-arm-20240624-en
Behavioral task
behavioral2
Sample
98e6fa309945a18befeb715cb8992b9e8bc41908ff13fa5e9eeedd733bcc8bb0.apk
Resource
android-33-x64-arm64-20240624-en
General
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Target
98e6fa309945a18befeb715cb8992b9e8bc41908ff13fa5e9eeedd733bcc8bb0.apk
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Size
7.4MB
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MD5
83afe4091993fa1d733310b595e1d131
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SHA1
6179956c01a715f2d2c4b4f6bb8228fa5933e959
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SHA256
98e6fa309945a18befeb715cb8992b9e8bc41908ff13fa5e9eeedd733bcc8bb0
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SHA512
fe99642eac6b772c53fd2e31195188472509b7d96a568079026ac237e68541abd5d01fd14d219be1461f2a1c1212b4a554432d8dd717ecb0438364390e305fbf
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SSDEEP
98304:0QPUcRsqV614dCkqwDaRsu85iSRGDWfbj72VKZk:0EM14dCkqwDaRv8rFTj72UK
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 payload 1 IoCs
resource yara_rule behavioral1/memory/4250-1.dex family_octo -
Checks Android system properties for emulator presence. 1 TTPs 1 IoCs
description ioc Process Accessed system property key: ro.product.model com.dmulti_scribez -
Loads dropped Dex/Jar 1 TTPs 3 IoCs
Runs executable file dropped to the device during analysis.
ioc pid Process /data/user/0/com.dmulti_scribez/app_save/pXM.json 4276 /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.dmulti_scribez/app_save/pXM.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.dmulti_scribez/app_save/oat/x86/pXM.odex --compiler-filter=quicken --class-loader-context=& /data/user/0/com.dmulti_scribez/app_save/pXM.json 4250 com.dmulti_scribez Anonymous-DexFile@0xc8b4a000-0xc8bcd694 4250 com.dmulti_scribez -
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.dmulti_scribez Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId com.dmulti_scribez -
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.dmulti_scribez -
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.dmulti_scribez -
Queries the mobile country code (MCC) 1 TTPs 1 IoCs
description ioc Process Framework service call com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone com.dmulti_scribez -
Queries the unique device ID (IMEI, MEID, IMSI) 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.dmulti_scribez -
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.dmulti_scribez -
Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
description ioc Process Framework API call javax.crypto.Cipher.doFinal com.dmulti_scribez -
Checks CPU information 2 TTPs 1 IoCs
description ioc Process File opened for read /proc/cpuinfo com.dmulti_scribez -
Checks memory information 2 TTPs 1 IoCs
description ioc Process File opened for read /proc/meminfo com.dmulti_scribez
Processes
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com.dmulti_scribez1⤵
- 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)
- 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:4250 -
/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.dmulti_scribez/app_save/pXM.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.dmulti_scribez/app_save/oat/x86/pXM.odex --compiler-filter=quicken --class-loader-context=&2⤵
- Loads dropped Dex/Jar
PID:4276
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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
3System Checks
3Discovery
Software Discovery
1Security Software Discovery
1System Information Discovery
2System Network Configuration Discovery
3Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
48B
MD5046a414913add6f5bb60072c7db819b6
SHA1451ee4f6809260aec622d772fd329c7d0297a842
SHA256b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a
SHA5124e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c
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Filesize
1008B
MD5cf7a62dad1503641548162c68daddd00
SHA1d2ed464eff1bc5f69b768b66d09340688475c321
SHA25607a30e0edfad8a8a49d1847b6223ba776a013beb7a632d2abb1e90c51ba2ef85
SHA512c83b516ddc956469780e35fac464fb3e183d17af1f8cf9fb5a7ac930ec7c3a62c7653df6be7c84952e8b81bd86015a2deaf16d3c96d83c4be2cd9f2d34422f2d
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Filesize
1008B
MD549d53095ba40cb86cbca3a9a4735ca65
SHA1096a6c0ca67375c9509d0051cc6135d24c47ae1c
SHA2568e29ddd396129bb425a86af8b5a1ce5f6eaabaebc337ce90184fdcdd3b106f4a
SHA512c87edad26fdf8673ec757fff8015f1816bbe10a8b9107b0a19a23f26e5dfb3f989429c559f0d45fa0f407b63bdcce6c2473e37b0a77049b2384cce66ce9ef550
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Filesize
307KB
MD54e73947cabb5db3f92ca85004981b754
SHA16d9667fdb0280ed2dcb782b4683e422a51bdc601
SHA2566db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c
SHA512be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69
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Filesize
1KB
MD5dbb760a7515a1c5cc64c3ac1ee8ac69a
SHA127f59575cbf99458292223cb1ac1ab1a8174b8d4
SHA256b2b36bf971b21f300d2ac47380be077f33c3308987093b7cd45db0a16ef464b9
SHA512d2aa46fc37ef5c00856760451a7fe49c26a0f73ebb51950aa6346ec30f2274a46e1bc9bf62b8bc470f67daa571ba3f1e591f04bb236a607985a55ea840e92e01
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Filesize
1KB
MD53d78466297360fc4f4244bf777747286
SHA162611a4a3cf6df1d53236f9b2fe91378cb7fed9f
SHA256be81e999e3b62e06fe2bb894ce6b12788c4b4ac6593e42fec048d47562aefea6
SHA5120eb570e316b7f449b580c89ad1c52ff73134e338e7646805e4e7cc3f1b49a7466c14ef45d7057d921e6484950e3b5c76ae0c14308d5a089581103be898a35a42
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Filesize
525KB
MD53cedff3c2d3b8bd9b4ac44c4fda9f097
SHA1c17dcebf5774aff70d291ba55c7ff9c800410a9d
SHA256d316551157d83057f0a07421b37fd05021d295e4fdeeb6948284f7482b625afc
SHA512b716cfa284276a0eec3b99f1c54f1c779170bbc227483741c206274da19967c909431d218b3ee3d201423492d29d237278f45081102339f6889dca088e70adf2