Analysis
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max time kernel
149s -
max time network
154s -
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
16-12-2024 03:19
Static task
static1
Behavioral task
behavioral1
Sample
0deb21fdba5fc32e6186bc6593f904490fdf65dbacb014077f1286f050a3b946.apk
Resource
android-x86-arm-20240624-en
Behavioral task
behavioral2
Sample
0deb21fdba5fc32e6186bc6593f904490fdf65dbacb014077f1286f050a3b946.apk
Resource
android-x64-20240624-en
Behavioral task
behavioral3
Sample
0deb21fdba5fc32e6186bc6593f904490fdf65dbacb014077f1286f050a3b946.apk
Resource
android-x64-arm64-20240624-en
Behavioral task
behavioral4
Sample
base.apk
Resource
android-x86-arm-20240624-en
Behavioral task
behavioral5
Sample
base.apk
Resource
android-x64-arm64-20240624-en
General
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Target
base.apk
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Size
7.3MB
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MD5
a091f3698e2e0e4258ec09b7499f82a2
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SHA1
7b33bfa417bbd5c5848012f5ff15408df10fbd3b
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SHA256
b34e33e934d4d37d9b062849b5234ca88b379f22a76f7102f14541edab8b9a0a
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SHA512
95b0ba367f6675d9759ad71d3b3924a83b132132681e37dfaabc529b59199b0a932a5fc96c08e817719d04213c88d779fa49dc760581babf25875958b05fd755
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SSDEEP
98304:1F7efW5iSRGkXRsaCithKj7uVKqW27fISJOX:1F7brlR2ckj7uUlYISJs
Malware Config
Extracted
octo
https://6cbe12d804e423a2e6f3631799f16cb5.com
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 behavioral4/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.grecommendation_emulatione -
Loads dropped Dex/Jar 1 TTPs 3 IoCs
Runs executable file dropped to the device during analysis.
ioc pid Process /data/user/0/com.grecommendation_emulatione/app_dad/PdWnD.json 4275 /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.grecommendation_emulatione/app_dad/PdWnD.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.grecommendation_emulatione/app_dad/oat/x86/PdWnD.odex --compiler-filter=quicken --class-loader-context=& /data/user/0/com.grecommendation_emulatione/app_dad/PdWnD.json 4250 com.grecommendation_emulatione Anonymous-DexFile@0xd0117000-0xd019ab5c 4250 com.grecommendation_emulatione -
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.grecommendation_emulatione Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId com.grecommendation_emulatione -
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.grecommendation_emulatione -
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.grecommendation_emulatione -
Queries the mobile country code (MCC) 1 TTPs 1 IoCs
description ioc Process Framework service call com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone com.grecommendation_emulatione -
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.grecommendation_emulatione -
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.grecommendation_emulatione -
Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
description ioc Process Framework API call javax.crypto.Cipher.doFinal com.grecommendation_emulatione -
Checks CPU information 2 TTPs 1 IoCs
description ioc Process File opened for read /proc/cpuinfo com.grecommendation_emulatione -
Checks memory information 2 TTPs 1 IoCs
description ioc Process File opened for read /proc/meminfo com.grecommendation_emulatione
Processes
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com.grecommendation_emulatione1⤵
- 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.grecommendation_emulatione/app_dad/PdWnD.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.grecommendation_emulatione/app_dad/oat/x86/PdWnD.odex --compiler-filter=quicken --class-loader-context=&2⤵
- Loads dropped Dex/Jar
PID:4275
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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
4Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
48B
MD5046a414913add6f5bb60072c7db819b6
SHA1451ee4f6809260aec622d772fd329c7d0297a842
SHA256b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a
SHA5124e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c
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Filesize
1009B
MD51e92ca57a39eb3c59f465edfbfc7f438
SHA152b538a1c223f16239b8694276c714c6a7027ea5
SHA256c0960c3ad69d7dee871a0a926b381ff369e47c23e3f6ad5dccdcc8ca8d381c0a
SHA512bfd77b443afbe0034162464c91ea5a1783b548044fa3c6880700563104ebc606ace1d32b5cec566f615cd71ef2b6a81cace4fe54a1d7ed3340f94f1c391e2116
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Filesize
1009B
MD5a76d4eb4641d605904c8e5377c0894c7
SHA1739863dfa3f3ef96d7a2ac48b4e154cadbe7f40e
SHA256d764a6eac185711576b6fb08b87e8903bcb10c5088813f7006e31cafbc614b8e
SHA5122bf5ba845ff993880ba5bd1c7a1f972321000e7797422a98cacc389177ad079db7a58ce9314422566814b1c63462170b069f7655839e00a22da6dc93761a4f18
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Filesize
307KB
MD54e73947cabb5db3f92ca85004981b754
SHA16d9667fdb0280ed2dcb782b4683e422a51bdc601
SHA2566db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c
SHA512be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69
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Filesize
1KB
MD503d6c1093ed67b1fbb7c28d25955efaa
SHA18ac5a06579c8200a67886b6d7e3f809092eb6461
SHA2562fa14e570c4ff9160936af9d624849e73a463d3a2f2f434e038f67d9f6d14ea3
SHA5126eeaf13f17842a07f2cf2416c29c50b4c5a740ab1382735bd11ce6444643af9a472e801e3c1ff5a4d06e1704d395892bf9cf73f44cebb82cdbb0cfecf27a9375
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Filesize
1KB
MD5ff57ea1394be3a66532807c860ceffbe
SHA1d0f6b106a32d6d33543c2766958fa73cfe78bb38
SHA256c70b695b6aeddd913a8f9802ec3e9a32279efac2de747fe4efac7de3313cd786
SHA51256ad43489c68ab96108349619fef546cbe2c009b64953789801fee711f3860b4d71521dae10fbb1345182f7739284b8495ecc493edba948453fc48dcbaf071d2
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Filesize
526KB
MD5735b53fd78504f8c243342f084a77559
SHA1ce14b491240473ddf434f7335615a59e874d2cca
SHA256b52f73978506398de4fdbb604caeddbb34a7f7db2750775479937c65d31a2248
SHA512d606cfce1c7f85f90efc1369294b71a5490876d49b6311554c684e933c848e0f203bd1d2f560f6e4777e41783c0b18ae62b2e9533171c3a74ffd82c667319dba