Overview

overview

10

Static

static

6

81d3e73836...f6.apk

android-9-x86

10

81d3e73836...f6.apk

android-10-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    155s
  • 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 03:22

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General

  • Target

    81d3e738365de796d3af82aedfad54224858577074af34931ef8a84b509f3df6.apk

  • Size

    9.5MB

  • MD5

    81de421b5be2dabbb92fd8492c1544cb

  • SHA1

    a3f45148638ee6eee1bf5dc83fa06f4b9154bf8b

  • SHA256

    81d3e738365de796d3af82aedfad54224858577074af34931ef8a84b509f3df6

  • SHA512

    e725a3cfec025f2906201c5d04821a85d6e6bd568c4e58d4413956bf03544777a5fa972fa20ed142fe9eba1dfd8767001cf0165230db305e323b3da778932e54

  • SSDEEP

    196608:HOMLw5IrwUYgwdGRdnd3X0UchfWNrp7BjdS:zLw5IrwUYgIdlhfAPg

Score
10/10
octobankercollectioncredential_accessdiscoveryevasionimpactinfostealerpersistencerattrojan

Malware Config

Extracted

Family

octo

C2

https://6cbe12d804e423a2e6f3631799f16cb5.com

AES_key
AES_key

Signatures

  • Octo

    Octo is a banking malware with remote access capabilities first seen in April 2022.

    bankertrojaninfostealerratocto
  • Octo family
    octo
  • Octo payload 1 IoCs
  • Loads dropped Dex/Jar 1 TTPs 3 IoCs

    Runs executable file dropped to the device during analysis.

    evasion
  • Makes use of the framework's Accessibility service 4 TTPs 2 IoCs

    Retrieves information displayed on the phone screen using AccessibilityService.

    collectionevasioncredential_access
  • Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps) 1 TTPs
    bankerdiscovery
  • Queries the phone number (MSISDN for GSM devices) 1 TTPs
    discovery
  • Acquires the wake lock 1 IoCs
  • 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.

    evasionpersistence
  • Queries the mobile country code (MCC) 1 TTPs 1 IoCs
    discovery
  • Queries the unique device ID (IMEI, MEID, IMSI) 1 TTPs
    discovery
  • Reads information about phone network operator. 1 TTPs
    discovery
  • Requests disabling of battery optimizations (often used to enable hiding in the background). 1 TTPs 1 IoCs
    evasion
  • Registers a broadcast receiver at runtime (usually for listening for system events) 1 TTPs 1 IoCs
    persistence
  • Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
    impact
  • Checks CPU information 2 TTPs 1 IoCs
  • Checks memory information 2 TTPs 1 IoCs

Processes

  • com.bvtethering_auran
    1⤵
    • 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:4257
    • /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.bvtethering_auran/app_cliff/Uyjc.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.bvtethering_auran/app_cliff/oat/x86/Uyjc.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4282

Network

MITRE ATT&CK Mobile v15

Initial Access

Execution

Persistence

Event Triggered Execution

1
T1624

Broadcast Receivers

1
T1624.001

Foreground Persistence

1
T1541

Privilege Escalation

Defense Evasion

Download New Code at Runtime

1
T1407

Foreground Persistence

1
T1541

Hide Artifacts

1
T1628

User Evasion

1
T1628.002

Input Injection

1
T1516

Virtualization/Sandbox Evasion

2
T1633

System Checks

2
T1633.001

Credential Access

Input Capture

2
T1417

GUI Input Capture

1
T1417.002

Keylogging

1
T1417.001

Discovery

Software Discovery

1
T1418

Security Software Discovery

1
T1418.001

System Information Discovery

2
T1426

System Network Configuration Discovery

4
T1422

Lateral Movement

Collection

Input Capture

2
T1417

GUI Input Capture

1
T1417.002

Keylogging

1
T1417.001

Screen Capture

1
T1513

Command and Control

Exfiltration

Impact

Data Encrypted for Impact

1
T1471

Input Injection

1
T1516

Replay Monitor

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Downloads

  • /data/data/com.bvtethering_auran/.global.com.bvtethering_auran
    Filesize

    48B

    MD5

    046a414913add6f5bb60072c7db819b6

    SHA1

    451ee4f6809260aec622d772fd329c7d0297a842

    SHA256

    b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

    SHA512

    4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

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  • /data/data/com.bvtethering_auran/app_cliff/Uyjc.json
    Filesize

    1008B

    MD5

    ecc65ac1f82611726adf8e1938a80877

    SHA1

    dfc4f4c13b169672d1cc9928a6889fda31c97126

    SHA256

    42dc0d926e06c1c102181a8a7afa3866eb221fca4ab42ee549090d6b3015d795

    SHA512

    fc610588b55fcc7799052fd132b7edd3d0a007906f35ecd284e69f622da9d2dd8672f83de024eec8a2b4935a5c56640bb0e2242dad17bd43e0eb04e717af05e6

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  • /data/data/com.bvtethering_auran/app_cliff/Uyjc.json
    Filesize

    1008B

    MD5

    18fff6ccd14cb397aefafb154db4e946

    SHA1

    6a24f688c44fe91613a26ce058b874b24222b38e

    SHA256

    a4a5ed2c486562f610c99ebbe1d216702f1e32bbdca689c5eb9bdba3b3d1896b

    SHA512

    f67a557a1a847c6dd469769092b2d03a838ef136bf857740cf9920c469bdc7a605110b803ac1aa27c2296d69afabd796535366e9ea0e8c835ff93cadf6983849

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  • /data/data/com.bvtethering_auran/files/.m
    Filesize

    307KB

    MD5

    4e73947cabb5db3f92ca85004981b754

    SHA1

    6d9667fdb0280ed2dcb782b4683e422a51bdc601

    SHA256

    6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c

    SHA512

    be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

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  • /data/user/0/com.bvtethering_auran/app_cliff/Uyjc.json
    Filesize

    1KB

    MD5

    be199a14f48cb91253ed5bdb495ede26

    SHA1

    ed85f6649ee5ecc0126deda4f745fcd1a846ccd3

    SHA256

    f016cb636d0a11479480d3611e5ec318a9027187f02a8c2523d005e6c65b1772

    SHA512

    9b7e03d3d5f288c682fb6a48c0533a922155d9ed7e751123b5fbb458d09ff2357d2bd87fc615a930bb4ab336f53ffe21cc2967d6e04d0ebd4f28c4a55a60dda8

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  • /data/user/0/com.bvtethering_auran/app_cliff/Uyjc.json
    Filesize

    1KB

    MD5

    dbc8502acbe7a6384459f8d6bd82fb1a

    SHA1

    3ff82b3e6beb7b0337ae86794d2b0e12d2bfe318

    SHA256

    6391fe0396c4ae5aad99567b12d321c48b16ba549b0f79e51ce98d311dd543ba

    SHA512

    402cc0106708f61754b04b2e68f1658a331a7d68402ec6195768c3e77fec548f5607cc9ce4b8cce4fd7706e7fa1b4d4d3eaa2a05aca2c823c68bb2d7bec3f72a

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  • Anonymous-DexFile@0xc8278000-0xc82fb764
    Filesize

    525KB

    MD5

    8dffb13e92e61db31cf9181a073fe891

    SHA1

    a7a867e36fd1c8dbf1b915df7a257879c2226d14

    SHA256

    8fa80792bce49437e604a6db56a4fc8b0e78ecea5f114fce30386aa84c92b324

    SHA512

    74c3f06c26c81e5ea40c9d95a1defac4abdfe965f4ac0b1192d270055bdf1efbee91e30ded3a669337d1bf16afac7e9859f61b8b7711405458feb129309de1ea

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