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Overview

overview

10

Static

static

6

45bfd8f412...08.apk

android-9-x86

10

45bfd8f412...08.apk

android-10-x64

10

45bfd8f412...08.apk

android-11-x64

10

Analysis

  • max time kernel
    146s
  • max time network
    156s
  • platform
    android-9_x86
  • resource
    android-x86-arm-20240910-en
  • submitted
    13/12/2024, 22:00

Sharing

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General

  • Target

    45bfd8f41285445153e72968de43bdc424f3aa89a8dbed8e4b7f65035fe9a508.apk

  • Size

    3.3MB

  • MD5

    def38b9daee0654daad2a5b04bcf70eb

  • SHA1

    09df3907111fed6bfa1ca4d2b1e19a98c8a1e85b

  • SHA256

    45bfd8f41285445153e72968de43bdc424f3aa89a8dbed8e4b7f65035fe9a508

  • SHA512

    52b691e6f952d2f181baff8907f24efa7c4d33e6c5b51a20b7743d7f0a2b5d3dd4c7539ce4c63a80d08ce7af3cc31e0ce6c0b149e0f6b5ddd8edf39de1f8c454

  • SSDEEP

    49152:Yg1Zs3sxmibDRMQiZdQpwT0WiKMoaEJtiPDcLmEc+UUzq0sdkEjIPJicUHqqS3rZ:Yg1ZcriJxMqpkrRecLbKj8JiBqRqwrVJ

Score
10/10
ermachookbankercollectioncredential_accessdefense_evasiondiscoveryevasionexecutionimpactinfostealerpersistencerattrojan

Malware Config

Extracted

Family

ermac

C2

http://mishao11jfac.pro

http://vamir99ffkkd.info

http://prebadejf41vv.live

http://hopfvba01fv2.pro

http://bibika821ga.info

http://no4rekivax.pro
AES_key

Extracted

Family

hook

C2

http://mishao11jfac.pro

http://vamir99ffkkd.info

http://prebadejf41vv.live

http://hopfvba01fv2.pro

http://bibika821ga.info

http://no4rekivax.pro
AES_key

Signatures

  • Ermac

    An Android banking trojan first seen in July 2021.

    bankertrojaninfostealerermac
  • Ermac family
    ermac
  • Ermac2 payload 2 IoCs
  • Hook

    Hook is an Android malware that is based on Ermac with RAT capabilities.

    rattrojaninfostealerhook
  • Hook family
    hook
  • Loads dropped Dex/Jar 1 TTPs 2 IoCs

    Runs executable file dropped to the device during analysis.

    evasion
  • Makes use of the framework's Accessibility service 4 TTPs 3 IoCs

    Retrieves information displayed on the phone screen using AccessibilityService.

    collectiondefense_evasioncredential_access
  • Queries the phone number (MSISDN for GSM devices) 1 TTPs
    discovery
  • Acquires the wake lock 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • 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
  • Performs UI accessibility actions on behalf of the user 1 TTPs 5 IoCs

    Application may abuse the accessibility service to prevent their removal.

    evasion
  • Queries the mobile country code (MCC) 1 TTPs 1 IoCs
    discovery
  • Reads information about phone network operator. 1 TTPs
    discovery
  • Registers a broadcast receiver at runtime (usually for listening for system events) 1 TTPs 1 IoCs
    persistence
  • Schedules tasks to execute at a specified time 1 TTPs 1 IoCs

    Application may abuse the framework's APIs to perform task scheduling for initial or recurring execution of malicious code.

    executionpersistence
  • 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.nanapusomodo.toru
    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
    • Performs UI accessibility actions on behalf of the user
    • Queries the mobile country code (MCC)
    • Registers a broadcast receiver at runtime (usually for listening for system events)
    • Schedules tasks to execute at a specified time
    • Uses Crypto APIs (Might try to encrypt user data)
    • Checks CPU information
    • Checks memory information
    PID:4362
    • /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.nanapusomodo.toru/app_push/WteGMkQ.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.nanapusomodo.toru/app_push/oat/x86/WteGMkQ.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4387

Network

MITRE ATT&CK Mobile v15

Initial Access

Execution

Scheduled Task/Job

1
T1603

Persistence

Event Triggered Execution

1
T1624

Broadcast Receivers

1
T1624.001

Foreground Persistence

1
T1541

Scheduled Task/Job

1
T1603

Privilege Escalation

Defense Evasion

Download New Code at Runtime

1
T1407

Foreground Persistence

1
T1541

Impair Defenses

1
T1629

Prevent Application Removal

1
T1629.001

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

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.nanapusomodo.toru/app_push/WteGMkQ.json
    Filesize

    699KB

    MD5

    496cc07a2c52d7d090737ba0a0881a7b

    SHA1

    7dcb09e067ca223a673c74b7b9e684d645c794da

    SHA256

    4b99a6645dde8ca3ec95e3fd49bc65027cdcd30f9222cf833c7d3f8c480d40da

    SHA512

    6a9fe7617f87a3c31db1dd1ee2cda1432b1f64a9d2420acceaf6e9fc0779867e72332e25f0a042777c520dd521168a61cdae70c710e4f4f21eebfc55a80ec894

    Download Submit

  • /data/data/com.nanapusomodo.toru/app_push/WteGMkQ.json
    Filesize

    699KB

    MD5

    1f453de88571066b50c61c004eb0cf3b

    SHA1

    2f5225a9113d9efa7b5d9d5b953b10d12a611aae

    SHA256

    1cbaa999d2077aa744ee2e3c73f6d35be965b67baecbd41510ea6ae475cfda34

    SHA512

    09b8f7cd96113b82e3306bc3b82ca0db687c0225e543962b0741f0605b3d3fb4bf946ab44427e93cc023a317abe280f6672abaca66dca574e861b673ab51ae8e

    Download Submit

  • /data/data/com.nanapusomodo.toru/app_push/oat/WteGMkQ.json.cur.prof
    Filesize

    2KB

    MD5

    fdaf35f08cc0996b3497324daac64f19

    SHA1

    7b8c1dcf236f78f2864ae13a909073cbd5b109c1

    SHA256

    93c8c93438159e1096590f87a94c77433677a80adf53a9982a77a0301f7deb1f

    SHA512

    cb2d72f455b7263befc953dcbb824a2bbab83969874e6acfdd3a21a4c978bee3b3880a1487b029747271699b327c0833360704c8b2d9a0eaaeb66d032d0f5562

    Download Submit

  • /data/data/com.nanapusomodo.toru/app_push/oat/WteGMkQ.json.cur.prof
    Filesize

    2KB

    MD5

    5cb68cce2b00560523a755af51a4e9d2

    SHA1

    547167d7820b84b077885274aeaf9fc22b1671db

    SHA256

    2dfdf13d62cc3debcc5489b76f554d3476a8949b6d8f9f53462774349379c1eb

    SHA512

    d28e5215172613eae1ca1e3081e3b1004a972b3242a5e6803f3885f83e782bb41c185a77b95f7620c206c9b9cb87fd87b7203f2a938e00fe2de1b7ef1c1b04fd

    Download Submit

  • /data/data/com.nanapusomodo.toru/no_backup/androidx.work.workdb
    Filesize

    4KB

    MD5

    f2b4b0190b9f384ca885f0c8c9b14700

    SHA1

    934ff2646757b5b6e7f20f6a0aa76c7f995d9361

    SHA256

    0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

    SHA512

    ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

    Download Submit

  • /data/data/com.nanapusomodo.toru/no_backup/androidx.work.workdb-journal
    Filesize

    512B

    MD5

    d69de0e6c4244d4c35702ad8f11bcc01

    SHA1

    fb77d6e472c1c00ed8b39f411c73adbe324b3d23

    SHA256

    39861e23ae3d8478c19aa41075aa5476ceed5a82259ca625a8a4f0c888b92f28

    SHA512

    7e807ca4d665467268374b2eadecaf441f1f74e9f8b8efceb9c8e77fedbb832b4fa4f676ecd82c938184ff9a2cf2b2c756493c971530163952e20519cdae30fc

    Download Submit

  • /data/data/com.nanapusomodo.toru/no_backup/androidx.work.workdb-shm
    Filesize

    32KB

    MD5

    bb7df04e1b0a2570657527a7e108ae23

    SHA1

    5188431849b4613152fd7bdba6a3ff0a4fd6424b

    SHA256

    c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

    SHA512

    768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

    Download Submit

  • /data/data/com.nanapusomodo.toru/no_backup/androidx.work.workdb-wal
    Filesize

    108KB

    MD5

    548f06ba1355819a2bd168120dd761be

    SHA1

    c90c714016a6baab0c526a15c26e5cfccebb8e32

    SHA256

    be28489ff43b93c8d7550d79a2355df5a6cd7e630ff94e3b6e23c846cb453b90

    SHA512

    2ce05c97488287e153ebe8b102f752d52f9c7484d07096c8e93b44f5399cd8149957f92620eba3c3a0cc905129f15ae9904ffd44ad6cf2d685094e171e6880b8

    Download Submit

  • /data/data/com.nanapusomodo.toru/no_backup/androidx.work.workdb-wal
    Filesize

    173KB

    MD5

    897762463fe5ccb697211c47e8c9f4a6

    SHA1

    5ffa556fb86fdd9e2fc71380614e78e8d348fd78

    SHA256

    eb6f06259fcb85b2005fda95537b3f7641bbe9f1c71c73ac0bb6e7d2b22789e3

    SHA512

    be0d97c8f144c86ae2c1ccaf69a30a3414d4f8b4509b1c4e354677641ffd94f1cd0965867ecd378800d4bb32c0731830e6943eb8d1a469e82074ee875f0ebee0

    Download Submit

  • /data/data/com.nanapusomodo.toru/no_backup/androidx.work.workdb-wal
    Filesize

    16KB

    MD5

    ce7aed8d6eb089bf32eb98989adbfeb0

    SHA1

    eb5fb3212f8a1dfd9ac334307a5fdd7ebe561c06

    SHA256

    e72db1348e2ff6dea5e5a2f80b4dc59e6ae346e1c519f333150363c2cf780c9d

    SHA512

    02db7282dceb1903bbec9160e9d9ef2ba06d4d19a7a5758ff36e951b4f5b1b384c406f5c34820900dc0e539aee02b6c84a75c9cebcbf905139418b50f7e3ae9a

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  • /data/user/0/com.nanapusomodo.toru/app_push/WteGMkQ.json
    Filesize

    1.5MB

    MD5

    4f060f97e742b5e991ef6a463461d7ab

    SHA1

    78d0a1f068dea4596c5a0ad2a8be8b86e9fbc23a

    SHA256

    565eb4485653a0c03a4d07006dda71b5a063b0c4e3a0755a7c8bb88f66634d50

    SHA512

    c4057ec2616406ba06fc8f90c87b7187bdf0b98edd2ea2a929a771a611363f942216cca7f6bfc3ef4ee4d436943fd3fa1145f572cad5ba26ba56de6397f1d747

    Download Submit

  • /data/user/0/com.nanapusomodo.toru/app_push/WteGMkQ.json
    Filesize

    1.5MB

    MD5

    5ec0eb4b7e575a5e9db73e1af76e8f50

    SHA1

    038c4b14ee1807455cd6c23afaeb97a84f793c71

    SHA256

    16c218bcd5cd1e7c04ec173a1450ad6281cfd6259fbb5609dfde323a3757c913

    SHA512

    41d7a06369cb52eda03e1d37aea6f5bd038fce8fb73fe7529340d8aa3bdb4931f07610521dd3529e5f9f7756fde0f63d167793f90b591cbb977b15086063e938

    Download Submit