Overview

overview

10

Static

static

6

6661a3543a...aa.apk

android-9-x86

10

Analysis

  • max time kernel
    22s
  • max time network
    38s
  • 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
    28-10-2024 15:35

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General

  • Target

    6661a3543ad38bb71f8b780b20fdc6479c91a12c37062a28dfd40045a2d9d9aa.apk

  • Size

    8.9MB

  • MD5

    e7962f6e28ffee1b2a0f792c48e6705c

  • SHA1

    bf245d5c32bb0cdb710c9c7dd4e994c5c783144f

  • SHA256

    6661a3543ad38bb71f8b780b20fdc6479c91a12c37062a28dfd40045a2d9d9aa

  • SHA512

    09199fd843949480eac1818d9731ef533b576399b7d3a7dce69923578f57de5e62fd4bdcd24fc3538dc206d698bbaec8af4a094c903b6a427c3be4866ffa7e68

  • SSDEEP

    98304:DnH3yRsXB925kxj+XXUK3P/7F5iSRGNdVKlVCFj7ODCvpDK95:b3yR2P2Vxpr+UTQj7Zs

Score
10/10
octobankercollectioncredential_accessdiscoveryevasionimpactinfostealerpersistencerattrojan

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
  • 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.explorer_reminderlr77
    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:4247
    • /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.explorer_reminderlr77/app_right/JNmLN.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.explorer_reminderlr77/app_right/oat/x86/JNmLN.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4273

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.explorer_reminderlr77/.global.com.explorer_reminderlr77
    Filesize

    48B

    MD5

    046a414913add6f5bb60072c7db819b6

    SHA1

    451ee4f6809260aec622d772fd329c7d0297a842

    SHA256

    b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

    SHA512

    4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

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  • /data/data/com.explorer_reminderlr77/app_right/JNmLN.json
    Filesize

    1005B

    MD5

    f5b930fa0a200dfa03902ac174877093

    SHA1

    3fefaa483a8a965e7681a0bdb68b2477748a03ec

    SHA256

    6664e278c44032959e3b00069e98419952e21e26d0cdd24287c43b3ce2a4e099

    SHA512

    56953c8020094872c7d182d11f04901117d444935a5e698d4bbe1e744d59a7e771e40b305b3d54e3cee56a2d67f0ff279e7c814025e353f92c6587b858243252

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  • /data/data/com.explorer_reminderlr77/app_right/JNmLN.json
    Filesize

    1005B

    MD5

    0696f731b6a23c5e42c2d2909d418d6c

    SHA1

    4985a1d79d51109e65d263d61e7fcc9b483b96ae

    SHA256

    f92ba8e2ccc8c06c0a5f210cf2028bc9858c5acf19cf623e36589d236e74337c

    SHA512

    9b15bb253ab8394980c95e16349fafdc84419894bb26cceefd7c272d4d94f5619882bfbdd648c100918d6a51a59fa533ed8e1bbf12f6714094b4eba3c9a16975

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  • /data/data/com.explorer_reminderlr77/files/.v
    Filesize

    307KB

    MD5

    4e73947cabb5db3f92ca85004981b754

    SHA1

    6d9667fdb0280ed2dcb782b4683e422a51bdc601

    SHA256

    6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c

    SHA512

    be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

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  • /data/user/0/com.explorer_reminderlr77/app_right/JNmLN.json
    Filesize

    1KB

    MD5

    8c2a4cb8fff3c8239ca16d71bf63348c

    SHA1

    1ff023009c621e7de06283d6b876552277a2f626

    SHA256

    865229e55aa5a9aba47f16790d82255c061ca004f8ca190c55e823f06e10101e

    SHA512

    16e31f42703ec207382a55c41f03450f1a3db2af5499c2fc7bbb477bdecb358871318f961212f894b75c13c4de1923104a284b5e7cf568999b49cb8b038cdaef

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  • /data/user/0/com.explorer_reminderlr77/app_right/JNmLN.json
    Filesize

    1KB

    MD5

    ee5ba7cd885eede41d04a335016453b8

    SHA1

    724e562f9b67f922225f96f2e586a8350caa03af

    SHA256

    72524b23f0268e4fb6427a4e3a3983b7145f2b466c5ed23a2c413f833961d57f

    SHA512

    301433c5ff37e1c53b2d7e3dfbc7cd229d03f006cc0d227d88e0e150316d3eea98ee3bdc69c0f0b1721db670689d46902d5e1311eae2082174f8b311c53bb8a0

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  • Anonymous-DexFile@0xd1ff8000-0xd207b9a0
    Filesize

    526KB

    MD5

    c3e2a557accb7b00f0307e7a0a595c25

    SHA1

    437b38bd5cdb4be0e101bcba442ac85214330934

    SHA256

    c82aaada938db58bdafb6bcc27e2cfd7247d11c4a1ab574fc187b08a5db04d48

    SHA512

    aa897a729137d78c39a12e12b72805540ba9fe110595ff59052deef2f5c03a5e75cd0229843067d2722633093297743740b247be0964b174280639f1d7e9d15f

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