Overview

overview

10

Static

static

6

f2d8ef5ec9...33.apk

android-9-x86

10

Analysis

  • max time kernel
    17s
  • max time network
    34s
  • 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
    11-01-2025 16:38

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General

  • Target

    f2d8ef5ec99448a8f796574edf88598dc75ef593db1ad74a25d158bfa1005533.apk

  • Size

    8.4MB

  • MD5

    3eae13d6af1804612eddbeb43b3038bc

  • SHA1

    16b42dfa64fa9cf017f0e68da8908394228047f6

  • SHA256

    f2d8ef5ec99448a8f796574edf88598dc75ef593db1ad74a25d158bfa1005533

  • SHA512

    b92ca2e7b1fe06afa6685c7392a7f3e610663557d9ab8f43bf8b048a18be5d5191b434b136810970020d1ec50931c8b616269917fc1adc0d4875a2f2091f79fc

  • SSDEEP

    98304:xjf+Tsz5iSRGQuVKPilO31/2Jo0L4nCe8sbf57Vi3XJRssA1QAzV5Vv:xj2krYUiO3MJo0L4dt03XJR9aQAzV55

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

    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
  • 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.picker_fastg1
    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: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.picker_fastg1/app_wrong/ZcRc.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.picker_fastg1/app_wrong/oat/x86/ZcRc.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

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

3
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.picker_fastg1/.global.com.picker_fastg1
    Filesize

    48B

    MD5

    046a414913add6f5bb60072c7db819b6

    SHA1

    451ee4f6809260aec622d772fd329c7d0297a842

    SHA256

    b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

    SHA512

    4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

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  • /data/data/com.picker_fastg1/app_wrong/ZcRc.json
    Filesize

    1012B

    MD5

    0d59c40587674b81d0e00a57bea969b3

    SHA1

    a072826965ac0ab65809ffcf811799329e14d33d

    SHA256

    49cc3f120c2d000858a1b4cfb072fec5c3d1d8e0abe0036215b1e88e020f40f1

    SHA512

    9127c86561839336868eea0c8967a646de3c535a051e7c76ceb90e2897ecf36c5a3a2d767e906be9a030bd6d810fb6b45db6cb330c5be9957a729d5bbf811e83

    Download Submit

  • /data/data/com.picker_fastg1/app_wrong/ZcRc.json
    Filesize

    1012B

    MD5

    ce5775b3402bd06a89636906f52c34d6

    SHA1

    7dd4e91f8a582f9d4ced457bb02ab087ac38aa22

    SHA256

    f66f9366c9ab596c9316d06d730b6bc7f794abfc2ac186b417be17f15626c376

    SHA512

    48a2a1278686d6a88b41a5a0693e5d70a5e3339f9e605ad5e8f14fbf445fed7e07dbd80652ada46ee6994f6b45ba2aa3126253b1437f87c1fcfd21926cebf4f8

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  • /data/data/com.picker_fastg1/files/.l
    Filesize

    307KB

    MD5

    4e73947cabb5db3f92ca85004981b754

    SHA1

    6d9667fdb0280ed2dcb782b4683e422a51bdc601

    SHA256

    6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c

    SHA512

    be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

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  • /data/user/0/com.picker_fastg1/app_wrong/ZcRc.json
    Filesize

    1KB

    MD5

    72c04ed5c60e6bfd3549fd706747b523

    SHA1

    f41e064c15fac81d11ff55c7c090b0e29ea96bf6

    SHA256

    073220b9987a1fbb758b46df3fa58b00256080e5d0eda1e4a0099278469adbbe

    SHA512

    9d83683b488d1b0c0e29abfe90ce4f55d2d5254e93c420f3ae6f1d1202d1b1f826e692cd81f38bd58f7b157066452939c00d42cbe1a3d45e2a2511858ecaf221

    Download Submit

  • /data/user/0/com.picker_fastg1/app_wrong/ZcRc.json
    Filesize

    1KB

    MD5

    0e64ea4f4297b3933c6e5610f409cdc3

    SHA1

    302d41f9de0053fa341e0a96e77d08b28ca316d7

    SHA256

    903d3fcc341cd03d137c18a8e69cafd7050d54cc1a1fca4980272c402c74e4e1

    SHA512

    ca5ed36b1ac201013d6d1c90bf4b17ef49c16ee19ae962083b5117a7cad057e608ebc9c6e7fd132de5602c1021d5488fedafa8dde2f5d72fef410d53a73cd197

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  • Anonymous-DexFile@0xc92fc000-0xc937f65c
    Filesize

    525KB

    MD5

    b670aa3f6cf70136079b34458c4cf378

    SHA1

    aa9ed9db1668794c5fa90d357076dbda6bd90242

    SHA256

    d30264642d09c2862087e1e43bed7f4aac3d52ca718ef2398c2e5b8c76897b76

    SHA512

    227c846f910e00d5b7c23feaef69d2b1492096ef4121a4517d4f3a908f638e2a3cab0530fef8029d5d5a3504625b6af17f2ba2efca2670d269dfdefb1bae5432

    Download Submit