Overview

overview

10

Static

static

6

dfc6b7f14b...c7.apk

android-9-x86

10

dfc6b7f14b...c7.apk

android-10-x64

10

dfc6b7f14b...c7.apk

android-11-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    157s
  • 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
    27-09-2024 22:01

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General

  • Target

    dfc6b7f14b14efcb7914cc06638de4fc6807b46d0cd5c6e1ad48e6dc247da0c7.apk

  • Size

    3.8MB

  • MD5

    239e33c64d322f85cc05cc2d2a5234f4

  • SHA1

    223efb835a820ad6bd4611b9eba3e9eb0d159736

  • SHA256

    dfc6b7f14b14efcb7914cc06638de4fc6807b46d0cd5c6e1ad48e6dc247da0c7

  • SHA512

    7ce21abdeaf7d81f0731dc8478ef6260b8ef9f74c4e0a31733a1102ce35aef32d44c48e22192a644aa8ca856e7d2e3081fb96eccdb632dd9a26d2bf07f3e8a85

  • SSDEEP

    98304:k20r2QFjrI1AuY/QtkxjC4Niw1Jo75ckB4E7EmbER5tH7:kPrxRydtkXSZ4E9bE9

Score
10/10
ermacbankercollectioncredential_accessdiscoveryevasionimpactinfostealerpersistencestealthtrojan

Malware Config

Extracted

Family

ermac

C2

http://176.111.174.221:3434

AES_key
AES_key

Signatures

  • Ermac

    An Android banking trojan first seen in July 2021.

    bankertrojaninfostealerermac
  • Ermac2 payload 2 IoCs
  • Removes its main activity from the application launcher 1 TTPs 2 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 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 21 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
  • Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
    impact

Processes

  • com.goqypntzr.nedsfxupf
    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).
    • Uses Crypto APIs (Might try to encrypt user data)
    PID:4253
    • /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.goqypntzr.nedsfxupf/app_app_dex/jxujfoh.kpn --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.goqypntzr.nedsfxupf/app_app_dex/oat/x86/jxujfoh.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4280

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads

  • /data/data/com.goqypntzr.nedsfxupf/app_app_dex/jxujfoh.kpn
    Filesize

    1.3MB

    MD5

    d4afcdd37967580b75520904ecbc2b20

    SHA1

    a15aa70c556215a7d378aa8051aadab4b68d4a65

    SHA256

    0e8327d13117d26bf1e6fbb18db8886bd0f609778eb60753f9897916cddd1076

    SHA512

    bc704a0d99ffb2918ae36901cfda3b13a5548d1af410f5390d78f7ee0a08d2189e49f0bbea302ecc74a29b1e1bfa22c07b4fa02a4cafa8d0e2a5698c71717b09

    Download Submit

  • /data/user/0/com.goqypntzr.nedsfxupf/app_app_dex/jxujfoh.kpn
    Filesize

    1.3MB

    MD5

    65f16553ecf1dd8ddde9a2b6639a303b

    SHA1

    675e0ec1cf7c5dc670934ab37219163604aadaef

    SHA256

    8248c4d187f11393a3d0dbff172798fcc1326eafaeb643b60f06545a481518c4

    SHA512

    39fe370ca7e052cf6fcfe711f2089131b90df8065281936a814dd7944501f0c28f35265500cca52625558815af03f9b60b9a41512265230ed713f7fa7921778e

    Download Submit