Overview

overview

10

Static

static

6

a4b9aa0619...7f.apk

android-9-x86

10

a4b9aa0619...7f.apk

android-10-x64

10

a4b9aa0619...7f.apk

android-11-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    152s
  • 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
    09-09-2024 22:14

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General

  • Target

    a4b9aa0619a74dcfcf4b4bb13d610e76606c7cb551a9fdc78bf45e737dbbd37f.apk

  • Size

    4.4MB

  • MD5

    0b7c5967ca8e6251473fd9b26f19fb11

  • SHA1

    46b21076e97b2c5bbe977f98b67330dca7dd21f6

  • SHA256

    a4b9aa0619a74dcfcf4b4bb13d610e76606c7cb551a9fdc78bf45e737dbbd37f

  • SHA512

    d46252ee3f11754600ddc6c7b48b8241cfd0b1e489a0bc665442931bd9c99c538d84e86b221982c9228ac668ac97d07eb108cd2e26c79adae45b405f401b2701

  • SSDEEP

    98304:UKfAQaTUibERxhgqDfAaIgXfmq3gQ2fK9cpCCSuD+mWxWjnd1VOJ:UuAQEUiby7gqDOgPmq3gQKCcpCxWJrOJ

Score
10/10
hookbankercollectioncredential_accessdiscoveryevasionexecutionimpactinfostealerpersistencerattrojan

Malware Config

Extracted

Family

hook

C2

http://185.130.226.87

DES_key
AES_key

Signatures

  • Hook

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

    rattrojaninfostealerhook
  • 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 3 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 information about running processes on the device 1 TTPs 1 IoCs

    Application may abuse the framework's APIs to collect information about running processes on the device.

    discovery
  • 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
  • Performs UI accessibility actions on behalf of the user 1 TTPs 8 IoCs

    Application may abuse the accessibility service to prevent their removal.

    evasion
  • Queries information about the current Wi-Fi connection 1 TTPs 1 IoCs

    Application may abuse the framework's APIs to collect information about the current Wi-Fi connection.

    discovery
  • Queries the mobile country code (MCC) 1 TTPs 1 IoCs
    discovery
  • Reads information about phone network operator. 1 TTPs
    discovery
  • Requests accessing notifications (often used to intercept notifications before users become aware). 1 TTPs 1 IoCs
    collectioncredential_access
  • 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.ncgtpctkg.eanzbfsiw
    1⤵
    • Loads dropped Dex/Jar
    • Makes use of the framework's Accessibility service
    • Queries information about running processes on the device
    • Acquires the wake lock
    • Makes use of the framework's foreground persistence service
    • Performs UI accessibility actions on behalf of the user
    • Queries information about the current Wi-Fi connection
    • Queries the mobile country code (MCC)
    • Requests accessing notifications (often used to intercept notifications before users become aware).
    • 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:4209
    • /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.ncgtpctkg.eanzbfsiw/app_dex/classes.dex --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.ncgtpctkg.eanzbfsiw/app_dex/oat/x86/classes.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4237

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

Access Notifications

1
T1517

Input Capture

2
T1417

GUI Input Capture

1
T1417.002

Keylogging

1
T1417.001

Discovery

Process Discovery

1
T1424

Software Discovery

1
T1418

Security Software Discovery

1
T1418.001

System Information Discovery

2
T1426

System Network Configuration Discovery

3
T1422

System Network Connections Discovery

1
T1421

Lateral Movement

Collection

Access Notifications

1
T1517

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.ncgtpctkg.eanzbfsiw/app_dex/classes.dex
    Filesize

    2.9MB

    MD5

    5060e68e2fa658d1b28e18d514d5033e

    SHA1

    c27247f5d015ac181ae32df2c4b889b31fc8115e

    SHA256

    455a988b8371ce33e6ed39bf0c4369c3c9fd26b6002423d467308f38a0cc20fc

    SHA512

    79138601617072efaa8e77171133026aaf24bf4af5df14e2ac69e16cbd8efd4f18843dd1f8458f5ce8fc78cbb578bf0ed400971cc326b30b53b9935bab58dbc1

    Download Submit

  • /data/data/com.ncgtpctkg.eanzbfsiw/cache/classes.dex
    Filesize

    1.0MB

    MD5

    8391d760410890669979909cf6c1318e

    SHA1

    3f44823afce3eaa20ed125913079a62356c2a674

    SHA256

    b47ceef4fb691a856f3e76ae7b6c18c612aef1cc4e01578bacccb715968fe4f9

    SHA512

    bb931c5fe6cffb62dfd8c0e57c7a9ad58b414a6d51342d983608095036dd0ce6420ce5b1da646a58e43b1a8054b09e92b1d32b13a0544409b03a70dfd415e691

    Download Submit

  • /data/data/com.ncgtpctkg.eanzbfsiw/cache/classes.zip
    Filesize

    1.0MB

    MD5

    8ab99d97e191d7b4d3f33d3065bf0076

    SHA1

    7a896180aa15ab8385d50c3306e44e2e6d98a61b

    SHA256

    f658fe00f4ad2e0bddd60e25a1ceb001efd1333546e25516e9b7e0da705394cc

    SHA512

    8129481cb41a2cedcd09d86f161c5469b96d1ca597aa056b1ffc7f071d81bced258c409f879355b8da6a2040c5ce3cd67ea038fa791d4bc3a3a6c5b6459951b4

    Download Submit

  • /data/data/com.ncgtpctkg.eanzbfsiw/no_backup/androidx.work.workdb
    Filesize

    4KB

    MD5

    f2b4b0190b9f384ca885f0c8c9b14700

    SHA1

    934ff2646757b5b6e7f20f6a0aa76c7f995d9361

    SHA256

    0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

    SHA512

    ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

    Download Submit

  • /data/data/com.ncgtpctkg.eanzbfsiw/no_backup/androidx.work.workdb-journal
    Filesize

    512B

    MD5

    6c158235316f31c90c886642aecfc2f9

    SHA1

    9a4a23294765646d1c9994e770ff9ad42411f428

    SHA256

    b822ec0ee3306e6a97087968377e5fa92b2ce01ba3cff866216e262f395fa697

    SHA512

    858865bd2873ff78cc1c2152b017c5f9e013b9991a45026da3dd7f733e097f03cb555a313fd55865bdb70238373f2c9c05a05fbf8885c42f2a49fd770daab40b

    Download Submit

  • /data/data/com.ncgtpctkg.eanzbfsiw/no_backup/androidx.work.workdb-shm
    Filesize

    32KB

    MD5

    bb7df04e1b0a2570657527a7e108ae23

    SHA1

    5188431849b4613152fd7bdba6a3ff0a4fd6424b

    SHA256

    c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

    SHA512

    768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

    Download Submit

  • /data/data/com.ncgtpctkg.eanzbfsiw/no_backup/androidx.work.workdb-wal
    Filesize

    108KB

    MD5

    7f0da097e066a7a67a0a7998b6751d58

    SHA1

    1e055fde88b0e7c7b07f7a1b126f0b09b4cdeff7

    SHA256

    04ca58ebf59370a971e9cf349b37f7b196baf70de339f404dd429efa388d4824

    SHA512

    3aeffc4cef1ee1f36cf8490639b081fdd582eaffac6037dc29e1bd31bc93e7b924c57118bb65d6d0e0841135734e4e42884f8bb7b062c64a89d5f215304e7d6b

    Download Submit

  • /data/data/com.ncgtpctkg.eanzbfsiw/no_backup/androidx.work.workdb-wal
    Filesize

    173KB

    MD5

    8e589bf78baa6241585b3ba134f6a025

    SHA1

    bc317ec38ca3d40cbf427b5fb31e6d5b907f90c8

    SHA256

    fe7b00c033108d232785a9f475c6412ef8d7c61ecd5454bf2c5fcead4f8d1c27

    SHA512

    42f59ad19d50c80ace890d194a3a4a854c1b20c4f149f12cadce9adaa2dc3e79404f8e4615f23d422f31e7db8ff05915ef7a190afb62dc523ed70d00ac65b5a6

    Download Submit

  • /data/data/com.ncgtpctkg.eanzbfsiw/no_backup/androidx.work.workdb-wal
    Filesize

    16KB

    MD5

    f7f501ffa1ed311ed84e0f149d8916a7

    SHA1

    45c4e0fd69afb1a0d573093f87fedf658038580c

    SHA256

    a4f924d39ebcd265082c5a4a2da0eb849d2f4c947be1fb6d21d121921ceba67e

    SHA512

    02f42f4798973e0b9e459a1e2e77518e940518a22fd4b8db9e9e7b161809c7203056d673e9c110813fc45c9d985b10fe6f273061f265219a2272074c1ea25655

    Download Submit

  • /data/user/0/com.ncgtpctkg.eanzbfsiw/app_dex/classes.dex
    Filesize

    2.9MB

    MD5

    52854711fd29601052aa260cb003833f

    SHA1

    a605f95025734b7f224f83d23f6d0aa20653c7bf

    SHA256

    ed78e940ceb585b71f0d042e1f17b4da73e10a80f03f41dc60d8cbb8d74b0e20

    SHA512

    421960a7c80233a79d6dfdff6c5f4e2ffac95e96781c2f921697e3660c86c60b7fc90f9ab5ff1db591de0ac2e3ac1539a818c2820aaf60406caba444e4ce33a5

    Download Submit