Overview

overview

10

Static

static

6

a23d4718e3...be.apk

android-9-x86

10

a23d4718e3...be.apk

android-10-x64

10

a23d4718e3...be.apk

android-11-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    155s
  • 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
    02-09-2024 22:01

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General

  • Target

    a23d4718e3849fbfa488cba75d5ee41cd78bb8f3528bd48fe8535408bf3b5cbe.apk

  • Size

    1.3MB

  • MD5

    2ab73aaf1f02c6840144d996e2920f73

  • SHA1

    7681b4239706294726afd8d9be47324544c0bb9e

  • SHA256

    a23d4718e3849fbfa488cba75d5ee41cd78bb8f3528bd48fe8535408bf3b5cbe

  • SHA512

    86dbcafc95672957efbeed3d9a7c72dc8bf121f7cf9ac4e358e781380f50dbd1722e0fe0160e5d87c0382e67cb3e5e523c49d2877c76378f8ae5e311bfb485b9

  • SSDEEP

    24576:7Pc9Y2gSvWTXXB+nhDeF1mMv+AOwhJtJtXNKWxZI8uVy:7ugS8Bkhg1mq+APt/XZx2y

Score
10/10
ermachookbankercollectioncredential_accessdiscoveryevasionexecutionimpactinfostealerpersistenceratstealthtrojan

Malware Config

Extracted

Family

ermac

C2

http://185.216.71.23:3434

AES_key

Extracted

Family

hook

C2

http://185.216.71.23:3434

AES_key

Signatures

  • Ermac

    An Android banking trojan first seen in July 2021.

    bankertrojaninfostealerermac
  • Ermac2 payload 2 IoCs
  • Hook

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

    rattrojaninfostealerhook
  • Removes its main activity from the application launcher 1 TTPs 1 IoCs
    stealthtrojanevasion
  • 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 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
  • 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
  • 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

  • q30g3hge.mb3ebj.jabnhruw
    1⤵
    • Removes its main activity from the application launcher
    • 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
    • Queries information about the current Wi-Fi connection
    • 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:4317
    • /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/q30g3hge.mb3ebj.jabnhruw/app_hkcp.mjc.px8x.lv3/newobfs/0.pobfs --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/q30g3hge.mb3ebj.jabnhruw/app_hkcp.mjc.px8x.lv3/newobfs/oat/x86/0.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4343

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

Hide Artifacts

1
T1628

Suppress Application Icon

1
T1628.001

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

Process Discovery

1
T1424

System Information Discovery

2
T1426

System Network Configuration Discovery

3
T1422

System Network Connections Discovery

1
T1421

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/q30g3hge.mb3ebj.jabnhruw/app_hkcp.mjc.px8x.lv3/newobfs/0.pobfs
    Filesize

    1.5MB

    MD5

    a35a2ca5f6411271afc2c2b7bc69bc15

    SHA1

    41141d88bf6bb9c33787e8047766c365b91a9b40

    SHA256

    75e889a12912212973af21e72d8b764e7d9848f293b59d4415ea19a04c7032cd

    SHA512

    d4d2920be9bc7c4891c3204732e3d103a3f712c3673c0c90932cb4dcb83dcd001bb478bbae891dcd5d0eb929f278b0d77a694d461ce3e57a514417164ca0a79f

    Download Submit

  • /data/data/q30g3hge.mb3ebj.jabnhruw/no_backup/androidx.work.workdb
    Filesize

    4KB

    MD5

    f2b4b0190b9f384ca885f0c8c9b14700

    SHA1

    934ff2646757b5b6e7f20f6a0aa76c7f995d9361

    SHA256

    0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

    SHA512

    ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

    Download Submit

  • /data/data/q30g3hge.mb3ebj.jabnhruw/no_backup/androidx.work.workdb-journal
    Filesize

    512B

    MD5

    871c5008ecd19a9796581cfcc6cf49dd

    SHA1

    bcb083cfaa9becc7e74c74c7cc1547246e12e47a

    SHA256

    028550f7420bdd76d7fed90ec9fa12268ecb7e109963aa2e864fd9a070467432

    SHA512

    f99c48323b1a29df2fdfcb9008af66573655c6632d54e2d9a0319c82f4bcc3521ac914aedb90e2ea438ede33f41dcc16713e8155ccb3dfd3c7940b3bbae7a9cf

    Download Submit

  • /data/data/q30g3hge.mb3ebj.jabnhruw/no_backup/androidx.work.workdb-shm
    Filesize

    32KB

    MD5

    bb7df04e1b0a2570657527a7e108ae23

    SHA1

    5188431849b4613152fd7bdba6a3ff0a4fd6424b

    SHA256

    c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

    SHA512

    768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

    Download Submit

  • /data/data/q30g3hge.mb3ebj.jabnhruw/no_backup/androidx.work.workdb-wal
    Filesize

    108KB

    MD5

    7c610fbb45bd23a2deea8b6ac44b562b

    SHA1

    1e8815ce126ee4eee601597f972abfd94d869cdc

    SHA256

    85cb317d04d9fad9e78d41becb75505b94ab3818383f890263d5f592f6287bd9

    SHA512

    85efdb78d330b9b31c47aec01fb92caf5a50cc4418bd76a425250c7e7ac8a1a4a3fbfde20e3d0fe7b4c93f87aa4fc422e9b15a11b6c02f95701066ebb9abaf7a

    Download Submit

  • /data/data/q30g3hge.mb3ebj.jabnhruw/no_backup/androidx.work.workdb-wal
    Filesize

    173KB

    MD5

    baf8171872b3c75ab784cbd478dd4c41

    SHA1

    a477621ce55c71886c52f11a7176161a9cd5f338

    SHA256

    56524ef91c5429b2673e490fbd9553d08e195f81aab43813d8c63fe6ffc70525

    SHA512

    547be3dfeb72aa0efb2d8ffcd03f8553e0aea1fd5d2365c48085a30d2b487ad8e36b61f7911a29ac0b0237efde802db736f63ff8a4fffd4a0a69be2d0ade49b6

    Download Submit

  • /data/data/q30g3hge.mb3ebj.jabnhruw/no_backup/androidx.work.workdb-wal
    Filesize

    16KB

    MD5

    c9aa00fbb19753c762e8d9c150566c98

    SHA1

    5f202cc79347a54244e711b8397c9594cab7ed6f

    SHA256

    eb235aaacb34f272db8dc5fdc59e31aaf660b79ae6e9a69a27efc498a3846995

    SHA512

    d9ae4808b25c41ce654456c37c656990db978091f9d8d29e9c9461036a91c0b7f63c29eb82dbe0f980e868146c1f83ea070d569f5d19d971c0173fd4ebc7f78a

    Download Submit

  • /data/user/0/q30g3hge.mb3ebj.jabnhruw/app_hkcp.mjc.px8x.lv3/newobfs/0.pobfs
    Filesize

    1.5MB

    MD5

    967fe78badc9847af06d11b54c7fb1ab

    SHA1

    74eee256c4ee46701479fe911e60e49842dc8959

    SHA256

    9a37aeadf40a3a423560b0a71eaffd63378ac35b6db6deedfd7934d2d369065d

    SHA512

    f4d7cbf1b9d7267f05c915c3419618f6f903b6e17a7084bf68daeee8b7b03d5daff15e9ee50eb0f91c61bc46b54272feef9414c9572b6ff84be07c68ed173128

    Download Submit