Overview

overview

10

Static

static

6

82a8181e20...92.apk

android-9-x86

10

82a8181e20...92.apk

android-10-x64

10

82a8181e20...92.apk

android-11-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    155s
  • 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
    19/03/2025, 22:00

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General

  • Target

    82a8181e20cb19e11cc2af9144b8ab135e8ca8245f39c025a23d820a526f2d92.apk

  • Size

    2.6MB

  • MD5

    9a7a600daac480476394145a9f57b9bf

  • SHA1

    8d729325e7c964d401d62c235f117f8f7a9f67ce

  • SHA256

    82a8181e20cb19e11cc2af9144b8ab135e8ca8245f39c025a23d820a526f2d92

  • SHA512

    f8948999a6dd8a0f0bad92be808073030a4038e08cefcdeb07a8d30db3466a569d78182416e2588dbf9803d9e6aa1b79244b0ebc919eb71398bb0ea0dce3a8ee

  • SSDEEP

    49152:89mTfBTWdDnO6lYdsuHq6pr4f/n3WjdyrZtNFz78vRbLw9:8ATJLcV6pGn3Wjd2KZnG

Score
10/10
ermacbankercollectioncredential_accessdefense_evasiondiscoveryevasionimpactinfostealerpersistencestealthtrojan

Malware Config

Extracted

Family

ermac

C2

http://193.106.191.121

AES_key
AES_key

Signatures

  • Ermac

    An Android banking trojan first seen in July 2021.

    bankertrojaninfostealerermac
  • Ermac family
    ermac
  • Ermac2 payload 2 IoCs
  • Removes its main activity from the application launcher 1 TTPs 1 IoCs
    stealthtrojanevasion
  • 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
  • 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 11 IoCs

    Application may abuse the accessibility service to prevent their removal.

    evasion
  • 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
    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.pqzlibitu.lwqdettlw
    1⤵
    • Removes its main activity from the application launcher
    • 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)
    • 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:4222
    • /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.pqzlibitu.lwqdettlw/gjtuhytoat/fjdHhify9t8hHak/base.apk.app8aio1.pjg --output-vdex-fd=44 --oat-fd=45 --oat-location=/data/user/0/com.pqzlibitu.lwqdettlw/gjtuhytoat/fjdHhify9t8hHak/oat/x86/base.apk.app8aio1.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4251

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

2
T1628

Suppress Application Icon

1
T1628.001

User Evasion

1
T1628.002

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.pqzlibitu.lwqdettlw/gjtuhytoat/fjdHhify9t8hHak/tmp-base.apk.app8aio3936146060304710726.pjg
    Filesize

    721KB

    MD5

    6ef775e4680abc4304e4e9656016a2bd

    SHA1

    9d9b276f704df33e5456109ae81691f074a11a0e

    SHA256

    08445281820c9eba23fd9d4a5744e8e6ca89b8ce84593e5b1c98df56f9d99163

    SHA512

    49534ef1bd40cb60b54ea438a8ec17802e37ac611f7136e5a69ffef998cd2d1a6eed5cbdb1c12d3ce9931e5244162d32fa2da5c6dd07bdd46d9059076a97075a

    Download Submit

  • /data/user/0/com.pqzlibitu.lwqdettlw/gjtuhytoat/fjdHhify9t8hHak/base.apk.app8aio1.pjg
    Filesize

    1.3MB

    MD5

    96bef1e72b60b29d1d9b8a645da26956

    SHA1

    47664430e8da5bcc94f78adbc6f9dc51544ed30a

    SHA256

    07c368757a04ab489b1dff10a4bf1852da5408f277a817020b19bd2cbde2e69c

    SHA512

    1e68e2437a867724c64c653887e80eca5df56c2da9123aa240c2bb680cfa456fed262ed584d4bde5ea2fd9b9575796c0d0cb41faa130f1b9037dbddde00b3405

    Download Submit

  • /data/user/0/com.pqzlibitu.lwqdettlw/gjtuhytoat/fjdHhify9t8hHak/base.apk.app8aio1.pjg
    Filesize

    1.3MB

    MD5

    229fb2ed58027855e7444cf7baf3a189

    SHA1

    df7557eb1c541f5d3d7c155e6e4ebbec547bc234

    SHA256

    bfa98b40463e79b2d502c69722f7b7fd063097ac3de4980305ce3f7259551947

    SHA512

    2f9bc4e3fb60363e69c563955e2a412109af23d17a8ea28dddf924139589a1861473798c94ac54515c7dcc5b958e24e77d4a564c21362a9ab2cdfdc1a7079ed5

    Download Submit