Overview

overview

10

Static

static

6

file.apk

android-9-x86

10

file.apk

android-10-x64

1

Analysis

  • max time kernel
    149s
  • max time network
    169s
  • 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
    20-01-2025 13:27

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General

  • Target

    file.apk

  • Size

    7.6MB

  • MD5

    7ea94f121306b84c57571c14717e6cd7

  • SHA1

    21f004d254820111597a3b2c5df31e1407e7d834

  • SHA256

    80ec9af43ed5b477e2358f6505a6bd833029c7e774e845626f5298318fd999c4

  • SHA512

    83a39281f5ae529d4a5c1d1caae5775f8d1ec8da7bbf67cd2d7a4a08cd923c3b0c5a6358e8a35a1f661137b77a772f7f53f8aa4e8df16dc32307b92c948822c0

  • SSDEEP

    98304:K+md5iSRGVMVKMERs1igL+3XuacV5lWMMBDxo+vBAUyP2mx0bh0oY6FI2YF:K+mdrDUdRlgq3XuaolWHtxN5AUwSbjsF

Score
10/10
octobankercollectioncredential_accessdiscoveryevasionimpactinfostealerpersistencerattrojan

Malware Config

Extracted

Family

octo

C2

https://51b570cbcecdfd754b1b5e0496fe2296.info

DES_key
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 4 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.szbutton_priv06
    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:4337
    • /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.szbutton_priv06/app_dex/classes.dex --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.szbutton_priv06/app_dex/oat/x86/classes.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4363

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.szbutton_priv06/.global.com.szbutton_priv06
    Filesize

    48B

    MD5

    046a414913add6f5bb60072c7db819b6

    SHA1

    451ee4f6809260aec622d772fd329c7d0297a842

    SHA256

    b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

    SHA512

    4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

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  • /data/data/com.szbutton_priv06/app_dex/classes.dex
    Filesize

    1KB

    MD5

    e1f4cfad9b25398511257411c8ec4558

    SHA1

    f07962d6455d2f7c651be2af7bf20ffe9f3b3058

    SHA256

    2e7d5440514974ea8a820c0ab489f9c55d69d7dc9374c51aab0d86ca80eb66f0

    SHA512

    6e7c7b1462e6727e4fcd97713c7257172e48c13da2aac343e8549dcc7d916f1a7d077c08f1b8addfff29bcb0817d4c1ad5dc7e916fb6bae23da2d3940ea06c83

    Download Submit

  • /data/data/com.szbutton_priv06/cache/classes.dex
    Filesize

    1KB

    MD5

    6b2e310abad6d871a381c2069ce3e1e9

    SHA1

    cee9c2b908516cb3fa507833a9fc48da431efd83

    SHA256

    79665feddeecc551226de1badc3e7cec32d1a3b056925f79b1317a324e38a380

    SHA512

    97f7f499999772f413d7f9a8fed13e06a8b55c988747c16d240c6ec12eb8a8e741cf0d14ab7e96c2e09f858e2d3c56dbcc0bfc27573c75b2e82af8f846a83d70

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  • /data/data/com.szbutton_priv06/cache/classes.zip
    Filesize

    1KB

    MD5

    90b832ea386f74a9d1513ea88d5baac9

    SHA1

    9ec7428c0fc6bae3d8de51dc79081719a366971f

    SHA256

    5c77dcbcf59015a03740c69db1ee4392ae6e5e293fc83e2d0e835f99f48010e8

    SHA512

    4ad7b75ac1cf9087aa0d123b5e4a782947cbd054495b0bf4d698440ea15dd91778d6ff5abae3d99f7a88f6e3f7b46391b78ee98a0780f75dbae10bcdbf3c00f7

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  • /data/data/com.szbutton_priv06/files/.s
    Filesize

    307KB

    MD5

    4e73947cabb5db3f92ca85004981b754

    SHA1

    6d9667fdb0280ed2dcb782b4683e422a51bdc601

    SHA256

    6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c

    SHA512

    be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

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  • /data/user/0/com.szbutton_priv06/app_dex/classes.dex
    Filesize

    1KB

    MD5

    8431a8d0ef4eb4bc6c62036db3391dc2

    SHA1

    83680e1b6ebf20236e95a5bd819b5cb615c76336

    SHA256

    dd4caec256b3d8a04aa2549cdc1d63f2cb0fdce4d38b5a20999e0b6038ebaa97

    SHA512

    305b0e2764ee0e53cf01371091e19be6ddf9fdb84a8f7b40577e87164535d8d2b64afd15e46d741a73c8462f742bdda078a83e98b06815fb660e6fdf3434e322

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  • Anonymous-DexFile@0xce5f8000-0xce67b6a4
    Filesize

    525KB

    MD5

    ad51622fe281aaf647b2bafecc4cf185

    SHA1

    3860f9321099a8fc6d5a48a2c0a84df5e149644e

    SHA256

    fccacb27235354d8b2fce02755445b25cc7605d36eef6b8a08e18fec532f24c0

    SHA512

    08e9d85bcd429dc11f80a9cb2da2b03a92cd254ebb500115f497daae8acd3885e7b629cbf72fb8bfeb51b99c9753904f5eb866de90407e8d0b2adfd362c18dc3

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