Overview

overview

10

Static

static

6

e998904d91...8a.apk

android-9-x86

10

e998904d91...8a.apk

android-10-x64

10

e998904d91...8a.apk

android-11-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    152s
  • 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
    29-12-2024 22:00

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General

  • Target

    e998904d91f0bd3f2527270a734602a81ef08301bd5199a030fa230ede73888a.apk

  • Size

    4.1MB

  • MD5

    26cf8c3c90cec4ce06904240e65226c4

  • SHA1

    433b70dddce7190a6c89a29a3932cbb4194686d9

  • SHA256

    e998904d91f0bd3f2527270a734602a81ef08301bd5199a030fa230ede73888a

  • SHA512

    a4510cf2e0142fb311c67f4c675fd2003fef9a17472d07c6656d3db8bd63d68d8646b902232c4776132f8558acf35053b43f154ab6431709779a5ce5444bbc9e

  • SSDEEP

    98304:6xOxpM9fmwjt8KCSOTom+V8ljB/hzGU6YZIDq13ojwgT0fRq:Qvfmwjt8KCSOTV+KVq/JDq14Ec0M

Score
10/10
ermacbankercollectioncredential_accessdiscoveryevasionimpactinfostealerpersistencestealthtrojan

Malware Config

Extracted

Family

ermac

C2

http://154.216.20.225:3434

DES_key
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 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 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 19 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
    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.jwvihvzbn.pmppvqagi
    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: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/com.jwvihvzbn.pmppvqagi/app_dex/classes.dex --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.jwvihvzbn.pmppvqagi/app_dex/oat/x86/classes.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4344

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

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.jwvihvzbn.pmppvqagi/app_dex/classes.dex
    Filesize

    900KB

    MD5

    d5b7b22b4cc41cc3a9047a3f43f6361d

    SHA1

    ef278016ba2debb41a9220d633769b7feffef61e

    SHA256

    f8c721b41a3b62a2d5622116b0ef7dc7956fa938871be78099c962ea336956cf

    SHA512

    9e0849f3c2687a40f00cfd5f1826b0f0f522a35b5a2dfecc4c01b47e7e5658450dc1af066426a1816f7cb45ad1a704e083636f7ecb56268c5c73e9cab909149b

    Download Submit

  • /data/data/com.jwvihvzbn.pmppvqagi/cache/classes.dex
    Filesize

    443KB

    MD5

    21d0a94254eef95fcac42fa5057002b4

    SHA1

    673ab396d262a1a95d23bd79ea2562349f7bd578

    SHA256

    ae3d9430db81a0fd20205b6c3e25a3ffe3c2d41cbdd42198f3c2fd943a113694

    SHA512

    f8e089e252c30d6a372a1f0f23e6ac9736ef029c52cfd34ff3d3f518be8157ce7290c90dbd6e37467c03f1a91637cee62a2599c5a2fc31413307b4648fc8925f

    Download Submit

  • /data/data/com.jwvihvzbn.pmppvqagi/cache/classes.zip
    Filesize

    444KB

    MD5

    625b51be52ba12d841957c35999321c5

    SHA1

    2ac71439a3cd800744e864152dcbed233f5d6a38

    SHA256

    0f0dd0f5e7d004b08bcdc006f24bd7cae5cbaedbe5492ffeaa195e7f0113992b

    SHA512

    c1a5e88d55e4a7fa2d37208da9a9ea303fb2c32280bb82512fe04a75d227329f2bb2092f1b05b3a277f85100783a1cdf90613433f2ecbe69a58aea074fbdb05b

    Download Submit

  • /data/user/0/com.jwvihvzbn.pmppvqagi/app_dex/classes.dex
    Filesize

    900KB

    MD5

    c47aa79c00a91fc24bc98bd6a3adbcfe

    SHA1

    f0d7543c6a5a346f5eb65c0a9b46b9609ca8ea3a

    SHA256

    b607130d3a0234b47a5a3620bb7ae7f6bf9470b255b7dc7005b794fe03f724f1

    SHA512

    0ab5975b0636857f1c882fed89c85ea479c370b9a60de66593bf76c1371c07ca795ed524a34d2b40a179cc2f39f1b5114982ea3715b1dedc3f5e9cbfd9b7830b

    Download Submit