Overview

overview

10

Static

static

6

file.apk

android-9-x86

10

file.apk

android-11-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    161s
  • 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
    21-01-2025 05:30

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General

  • Target

    file.apk

  • Size

    8.5MB

  • MD5

    b07a6494e91bd310d92f1dcfbf1e5541

  • SHA1

    d21322c9376889710996c4ce712c7f70833b4fa8

  • SHA256

    9750e65181634a0e420e02d070a986febeaf9e4bbfec2c0eb97adccee117b297

  • SHA512

    44a32d6b6ca50af1ebd3d9d7d71f6e2dce12527d80e55774d5ffd87ec72bac44ba49e9e311179c20c4411f5d8bb4c409a0131966458ab20fb7ff400f8b1732d8

  • SSDEEP

    98304:jU4iYMZfmISrQZbMhbULwKbKKFVKdE1Uj7j5iSRGCi3vlWVd6bLta4RsuRjuIPBV:gAbKFU6uj7jra3d2iRdRd4osNtm

Score
10/10
octobankercollectioncredential_accessdefense_evasiondiscoveryevasionimpactinfostealerpersistencerattrojan

Malware Config

Extracted

Family

octo

C2

https://ea32b25512c7349c7e4525411ebad268.quest

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.

    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.icalendar_knox39
    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:4339
    • /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.icalendar_knox39/app_birth/uEt.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.icalendar_knox39/app_birth/oat/x86/uEt.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4365

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.icalendar_knox39/.global.com.icalendar_knox39
    Filesize

    48B

    MD5

    046a414913add6f5bb60072c7db819b6

    SHA1

    451ee4f6809260aec622d772fd329c7d0297a842

    SHA256

    b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

    SHA512

    4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

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  • /data/data/com.icalendar_knox39/app_birth/uEt.json
    Filesize

    1014B

    MD5

    20941d078c01a18589675ca21cae6b68

    SHA1

    d851f20f976d0b0542a4d89c590bd05119b72d7c

    SHA256

    1cdde219e08a04a0b652aa30edb017df97466b8d0b0f756a5aa8d959c38a6ec4

    SHA512

    7b54ef626ab47af2947f30e5b0b0be6fa86fdfc3fcf295f98521450c18734509d7e9404121c48164e831a3beebb75329f56429525a2dc2dccb00975b26dc703b

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  • /data/data/com.icalendar_knox39/app_birth/uEt.json
    Filesize

    1014B

    MD5

    06b5f3a993f8feb5a6fe6a774505148a

    SHA1

    e3343b11aa86d218b3b571fc53780bf5a09f3e6a

    SHA256

    21a1e5df27910e6aed9d85c5691223debbf15ef26f3e728f2c16271cc5dadb1a

    SHA512

    434e466b812f0375c3d63ab1c401a92621f6b24c398c18d721f064c337f846cfcd1cba60908d22dd84015f58dad980895c8733ee8a81b16be5c6879d9c1c6752

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  • /data/data/com.icalendar_knox39/files/.h
    Filesize

    307KB

    MD5

    4e73947cabb5db3f92ca85004981b754

    SHA1

    6d9667fdb0280ed2dcb782b4683e422a51bdc601

    SHA256

    6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c

    SHA512

    be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

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  • /data/user/0/com.icalendar_knox39/app_birth/uEt.json
    Filesize

    1KB

    MD5

    0b38092018650f3f2f42913d4fef9139

    SHA1

    56cb2be5801f0b73627c9566ef51d4a0f062effc

    SHA256

    67615198790c1e38ebefc5268d9edfc9903c36121a2282b0d3ab541d31888dc9

    SHA512

    b5fe6a1bb8c01d619e234ca58faac1c1c98095fe88403f4476af893ac9f1648177434cfa78a8ac52f045afac8cabd7efa08684c9b8aa44d8a0047b32e5c1dfa6

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  • /data/user/0/com.icalendar_knox39/app_birth/uEt.json
    Filesize

    1KB

    MD5

    57c65370ba89d57eb4852b60a9021a3c

    SHA1

    c3043cdbc7cef8e495cc1b721f86e8e0945bfac4

    SHA256

    efa83223ce8b68046c9c67437ba9cdd1e76ddd33f6d08f147ce29367788aad0a

    SHA512

    5bd737035f3ebcdfcafbc01867e2d110945f8be7255848ce6ef055fc053a07765e0df388ddfbd8159e70fe6bc166c4ba3acfe44252923f2728139ed3b84f09c0

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  • Anonymous-DexFile@0xccd78000-0xccdfb8b8
    Filesize

    526KB

    MD5

    9f0f7297a715dc172ac5581e8ef2c578

    SHA1

    58f9f04e9f1bf2246d1b8e83ef20e5fcacc74b2e

    SHA256

    01c31ff04d4fcf25c4259efa57c5d3fdf705ea31b0e6676627632036217e8556

    SHA512

    49c69ccc8660e7604c9b3b14255e1696a7f678edf45235536227e14a6f0eff921f86b14290af3946c1ed3174648b729df3ce9f71349356b37f10314e1cd2ca29

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