Overview

overview

10

Static

static

6

file.apk

android-9-x86

10

file.apk

android-11-x64

10

Analysis

  • max time kernel
    139s
  • max time network
    136s
  • 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
    21-01-2025 06:06

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General

  • Target

    file.apk

  • Size

    7.8MB

  • MD5

    658425d4180adbec4daa13cf85ccfe0a

  • SHA1

    372e95427ff9389325479e45344fc2bb606583b8

  • SHA256

    ee1d0e5d105db1137e1e9fdca5a39c421ab0c34ebe910d93d07134ba961402df

  • SHA512

    ccee973a5069a5fe967e7178b2196d1a2f2b7703a101aa7fa96eca1e43b32066475ec9549e0a8249b279eb79a59885250f5b5aaf12d2aeefa4e3c8b4327ea09b

  • SSDEEP

    98304:YSXb8paL+7HFe/nOF0yRs8mS5iSRG55BS3XqVKjQ:Yx7HFefOKyRpRr4Y3XqUk

Score
10/10
octobankercollectioncredential_accessdefense_evasiondiscoveryevasionimpactinfostealerpersistencerattrojan

Malware Config

Extracted

Family

octo

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
  • Checks Android system properties for emulator presence. 1 TTPs 1 IoCs
    defense_evasion
  • 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.

    collectiondefense_evasioncredential_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.

    defense_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
    defense_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.ihwriting_enterprisey
    1⤵
    • 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:4243
    • /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.ihwriting_enterprisey/app_skill/PJG.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.ihwriting_enterprisey/app_skill/oat/x86/PJG.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4270

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

3
T1633

System Checks

3
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.ihwriting_enterprisey/.global.com.ihwriting_enterprisey
    Filesize

    48B

    MD5

    046a414913add6f5bb60072c7db819b6

    SHA1

    451ee4f6809260aec622d772fd329c7d0297a842

    SHA256

    b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

    SHA512

    4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

    Download Submit

  • /data/data/com.ihwriting_enterprisey/app_skill/PJG.json
    Filesize

    1002B

    MD5

    96a600a7d517738a15dc52c21244ac1f

    SHA1

    5a7be1a87d949da3dc2a6ef7b0a022e65676891a

    SHA256

    83dcf0f3ef6736326801f7291aa3bf512169e906a790257e2ad8726886261f2c

    SHA512

    034cf45457f84ce1958a67e7f74c346ba3eea0783c984f91942b5f98d979eeb0736bbced98581e6904843deb380b1f4181267e6e75566dbec178a4293a5e8db1

    Download Submit

  • /data/data/com.ihwriting_enterprisey/app_skill/PJG.json
    Filesize

    1002B

    MD5

    b9413a293e67b6928d5b4de1e4d13298

    SHA1

    6ffeeade76569c17d087c95c93c5caa362af85c2

    SHA256

    b6eaeee47094372201b0b7be6beb62414ecbb2a38f998f281394ac1349a3f359

    SHA512

    79b1c88fc2cc296a044016b58a238d8691cf4528a5ce84c80175fdfbe0409ce0c9110064777b82c68e034ceddffadd2935d86cdad0e9591665bfed6b13e54343

    Download Submit

  • /data/data/com.ihwriting_enterprisey/files/.t
    Filesize

    307KB

    MD5

    4e73947cabb5db3f92ca85004981b754

    SHA1

    6d9667fdb0280ed2dcb782b4683e422a51bdc601

    SHA256

    6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c

    SHA512

    be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

    Download Submit

  • /data/user/0/com.ihwriting_enterprisey/app_skill/PJG.json
    Filesize

    1KB

    MD5

    767bf3727b287a031f09cb424367c4de

    SHA1

    302ae4b02be7a8683e774862fe8fb295b4fa5fb7

    SHA256

    8d08bb0c7c4828547b0badcaf6e7512ac6c6a819498f5e1cf63078402d8c4843

    SHA512

    322af3a7665b6f024b53cbae912e030037528b244b8075f02c78532bc4358a7627c43547c97a114ca5c7b97a67e11c17c8fb7a142518468b7a2b6160b37c41b0

    Download Submit

  • /data/user/0/com.ihwriting_enterprisey/app_skill/PJG.json
    Filesize

    1KB

    MD5

    38587920acc5aedd879cf96a2d792d3f

    SHA1

    ffea56eb36f31b862660902f1ce738e172694996

    SHA256

    f2fec55b1ab71c92da670b46f82b9a7f05f9cc1fa9d35ca9606941a7290d3fb5

    SHA512

    fb9df1df6f258abf9bc800ed0cfd5df80173f32bc90825b904b6bd0b7b2a547bd94201eddf0b047679153e908fffdd6c769fb69c9a4262d2cc61fc66cb60cb95

    Download Submit

  • Anonymous-DexFile@0xd39f8000-0xd3a7b848
    Filesize

    526KB

    MD5

    d1685e75ae7b4ec2e3b03143e28b2106

    SHA1

    74090ba51e815045e766a31d8ee06e14f7b88da6

    SHA256

    7a22f8459f6f2152f1c3cfe232500e2646aa42074d286008386402316be110cd

    SHA512

    52639ace7b60193452830b6c700bf0608a222c549acd20447681312a09ae25109ba509374c14bd3a9ec70c4687b3a810379b39566a227d87c0f5f3a04168206b

    Download Submit