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Overview

overview

10

Static

static

6

edb8acd104...8d.apk

android-9-x86

10

edb8acd104...8d.apk

android-10-x64

10

edb8acd104...8d.apk

android-11-x64

10

Analysis

  • max time kernel
    70s
  • max time network
    150s
  • 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
    04/01/2025, 22:00

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General

  • Target

    edb8acd104ad2427a79922d07f9419580fd9aeb746f940422851b431ff61b48d.apk

  • Size

    3.3MB

  • MD5

    2a884cd0c07e28a58aef5abe799f34d9

  • SHA1

    966488faebce0d98b9be6d8705577a894fdcacc8

  • SHA256

    edb8acd104ad2427a79922d07f9419580fd9aeb746f940422851b431ff61b48d

  • SHA512

    f0ad86beb094c1ad938efeba180cc145bc8f30d82169579850fa461985d9e49606d6dc4148600224796f63eecc9dc4bca1084168fd73dd9776ee490538e23df4

  • SSDEEP

    98304:H2UARrIK9eUk8spO1w93yRunnkC9tyzgZLaQYEy:ARrzdrspO1cMukCeUxfYEy

Score
10/10
ermachookbankercollectioncredential_accessdiscoveryevasionexecutionimpactinfostealerpersistencerattrojan

Malware Config

Extracted

Family

ermac

AES_key

Extracted

Family

hook

AES_key

Signatures

  • Ermac

    An Android banking trojan first seen in July 2021.

    bankertrojaninfostealerermac
  • Ermac family
    ermac
  • Ermac2 payload 2 IoCs
  • Hook

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

    rattrojaninfostealerhook
  • Hook family
    hook
  • 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.

    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

  • com.jekefanesuli.vako
    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
    • 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:4260
    • /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.jekefanesuli.vako/app_engine/DDF.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.jekefanesuli.vako/app_engine/oat/x86/DDF.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4286

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

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/com.jekefanesuli.vako/app_engine/DDF.json
    Filesize

    665KB

    MD5

    22e240b36c2b8848165d8caf97262510

    SHA1

    daaed9d2f94539cc5e9770484b95df68fdd6195e

    SHA256

    ef216fd44a958ee9803ea76261f50ff299a1bdaac0d07d8834a0cc635d733e41

    SHA512

    d8839872c2a953cf157a363df9aea827415a20aa630d2adb8dd096b70b04c114c4278c7002336d6948c20c6a5dad6eada14788df18f5fa614d4bc4b104febe3f

    Download Submit

  • /data/data/com.jekefanesuli.vako/app_engine/DDF.json
    Filesize

    665KB

    MD5

    1ddbd56355948c117b65d8347eab5af9

    SHA1

    3e4ad916b8dbac8c5af0f75d919d8866be80f64e

    SHA256

    96ccc3911f6d7ee4f8efa2f84506f7b5e812cd1fa0cd0ee2b980d5bba7f9902b

    SHA512

    a433a178bd7e0077d8f37af0bd497026a84de7ab78e7f929c7a13a8e722311d33e78f3ebbdf31cfa9945a64d8dad35378d5a2e6b682c932ea102802ae929bd89

    Download Submit

  • /data/data/com.jekefanesuli.vako/app_engine/oat/DDF.json.cur.prof
    Filesize

    3KB

    MD5

    12cb8d4c30a261d03741e1baea099f9c

    SHA1

    a5c7da80476de91a7ac3d37af8cb7a4cb78ad0fa

    SHA256

    bf4953fbc1ddf1752e54b30caa43d03c5587854803a6f6e4cb553e10ad7a15ac

    SHA512

    cf7fdbe191eb0ada5da796852be5fbdaad3f03bf6b8fbc974c0bac1261d20b0fe30c3f92ffa313202b1cf71d2ee242b21aeccc3fecf65aa6d080d8f0b0d3c06e

    Download Submit

  • /data/data/com.jekefanesuli.vako/no_backup/androidx.work.workdb
    Filesize

    4KB

    MD5

    f2b4b0190b9f384ca885f0c8c9b14700

    SHA1

    934ff2646757b5b6e7f20f6a0aa76c7f995d9361

    SHA256

    0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

    SHA512

    ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

    Download Submit

  • /data/data/com.jekefanesuli.vako/no_backup/androidx.work.workdb-journal
    Filesize

    512B

    MD5

    727b3b566f97da2a56177c8358336900

    SHA1

    45349184aa4a959421d417b27c942d128715e7c6

    SHA256

    2469a52e9d9fcd93febbce703120d5855df5342c80a308a902f0442930aed618

    SHA512

    493c0452df8387a73e9cfc01a5ce78ee65665fca7134a9df9a0c07969b4bfeeb369bfeab43f6ab63e957fc46eb4988696f0e698e80c5c4d11c3bb8ebd48779b8

    Download Submit

  • /data/data/com.jekefanesuli.vako/no_backup/androidx.work.workdb-shm
    Filesize

    32KB

    MD5

    bb7df04e1b0a2570657527a7e108ae23

    SHA1

    5188431849b4613152fd7bdba6a3ff0a4fd6424b

    SHA256

    c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

    SHA512

    768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

    Download Submit

  • /data/data/com.jekefanesuli.vako/no_backup/androidx.work.workdb-wal
    Filesize

    108KB

    MD5

    2ed012091e4df8843ec5fc801c646365

    SHA1

    567a7486af1a86b7f5e6c60bcc295b119e672922

    SHA256

    5c29c697a906438f0009ca665600deb3734fe826d8d6ef287c20e7360992ebb4

    SHA512

    2f83669288999125e685abd4d6c63748f1bbd2cf46dceb0fdc5e0ef6f5679afa286777a33cb30e692d8caef62ddca46ed1eb93e06ee0c09e523ccc8c2ed6e065

    Download Submit

  • /data/data/com.jekefanesuli.vako/no_backup/androidx.work.workdb-wal
    Filesize

    173KB

    MD5

    944aa4e20f6e35f4189ca27fc44a1107

    SHA1

    a3ddee2a60934ba0969bc5e6de18d6be43e25a9c

    SHA256

    a25c0cc024a3f7136e0058e044ea3ec939a720d81a5997585c4efff18fc6695d

    SHA512

    f667cc9bed441c875cf6665cdda3d7b11f85c02817ebdf550aa407262687b7bcfaa45c22a821dd0a19cc49665005e7a7a56ab976557840f50be8fec458995742

    Download Submit

  • /data/data/com.jekefanesuli.vako/no_backup/androidx.work.workdb-wal
    Filesize

    16KB

    MD5

    615378f4c542850810a5566e97742acc

    SHA1

    f1314a77011e07f371665d2ed541c00c4a15b49d

    SHA256

    4bb4a3d4ec7b1efa1716e3d29de7f8bd0fc776ca4825928697aafe1bb3358a8a

    SHA512

    3d0f095cb9a9aec361afe945950ad9ca8ee7391b9d66fed95968a43116af036af8c408b832814e179c65e5ab4255d2bbbd6f132ba597de84a97e2841d4fbfe49

    Download Submit

  • /data/user/0/com.jekefanesuli.vako/app_engine/DDF.json
    Filesize

    1.5MB

    MD5

    95e72dad2be7777022486851240d8f4d

    SHA1

    2b98d6f2d790f9c8711897eceadcd2ae7a306eca

    SHA256

    4758bf1c01a65919d937b55b9e461bd64be17574f9ea5abd7da5c99c235eca98

    SHA512

    4695bb9b9aef6e8463eb7f3827598cd1f6db46b84059fa216bb85dc7898ef623b65a5658982379c070b0157de40246140c9b80724d8eec487a0b8eebf6e6245b

    Download Submit

  • /data/user/0/com.jekefanesuli.vako/app_engine/DDF.json
    Filesize

    1.5MB

    MD5

    acf5c16e023eb0ab3ced9aeb67a8cd4d

    SHA1

    f3283a9282c22e8b6a9286a6412847dcea76eaaa

    SHA256

    b75ea8c86465ddfce7606532f3bb0f682ac8c620ec0372b792af3e4a5df413ff

    SHA512

    83ab6802bdc378ab665cac7ec61bcd5eb4e84e24a2bcb4d3829c39ecd9784e277e31f52b928177c3e2de59e9e7ad5a37602864f53e464a7186bdf2927baa628e

    Download Submit