Overview

overview

10

Static

static

6

239e662b90...24.apk

android-9-x86

10

239e662b90...24.apk

android-10-x64

10

239e662b90...24.apk

android-11-x64

10

Analysis

  • max time kernel
    133s
  • max time network
    158s
  • 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
    14-11-2024 22:11

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General

  • Target

    239e662b900dee78d6d7c9cb96b7228d6902b239dcd7e7fc53b6123fe119d524.apk

  • Size

    4.2MB

  • MD5

    881dae2cfaf07f517d387d2efc4374f1

  • SHA1

    8805a4f0be7f3b8f7c1d65255dae4414cf9098f2

  • SHA256

    239e662b900dee78d6d7c9cb96b7228d6902b239dcd7e7fc53b6123fe119d524

  • SHA512

    995d589e281dac65473fe76552485f937f9158b94269695093910b73ab65f29b11bf755a3010b359da963c1e0bb4f7c482c9430c94bbc23fb062733041cd6f69

  • SSDEEP

    98304:XQEEAQu4Sb2yubA4iLZzwUCpVNj8lnUZliI1gqi4YaDVeCz7U0Gqi45:XDZxCpMlnuIlzapeC80Gs5

Score
10/10
ermachookbankercollectioncredential_accessdiscoveryevasionexecutionimpactinfostealerpersistencerattrojan

Malware Config

Extracted

Family

ermac

C2

http://154.216.20.101

AES_key

Extracted

Family

hook

C2

http://154.216.20.101

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 a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps) 1 TTPs
    bankerdiscovery
  • 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
  • Performs UI accessibility actions on behalf of the user 1 TTPs 5 IoCs

    Application may abuse the accessibility service to prevent their removal.

    evasion
  • 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
  • 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.dehodigipuhixoyi.mafuko
    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
    • Performs UI accessibility actions on behalf of the user
    • 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:4259
    • /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.dehodigipuhixoyi.mafuko/app_among/WLYyAED.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.dehodigipuhixoyi.mafuko/app_among/oat/x86/WLYyAED.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4285

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

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

Process Discovery

1
T1424

Software Discovery

1
T1418

Security Software Discovery

1
T1418.001

System Information Discovery

2
T1426

System Network Configuration Discovery

2
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.dehodigipuhixoyi.mafuko/app_among/WLYyAED.json
    Filesize

    735KB

    MD5

    4e8f8b5f30a1f5096e0ba19d1395dab1

    SHA1

    bbfe92e6bc71631b486f55daf11e884bf6374357

    SHA256

    a5f73277cefc9ee16f96c71a2bfe75a21c903825441a86abd33b3e30d33aa54c

    SHA512

    0cfcb02b7257001ac0d00d62d64a0089578a6041cf14bea7168b24c2d84c44f7491097acb28c94cc5cc62dadedb496c27e31fc64b16f0f917b04c4dfc6ca558b

    Download Submit

  • /data/data/com.dehodigipuhixoyi.mafuko/app_among/WLYyAED.json
    Filesize

    735KB

    MD5

    d8340d115d33961cc2138559ba75acf4

    SHA1

    a18748d7f51d3467632433bf42a3fd2f77eff4a4

    SHA256

    c737e3746509207a261a0bcefa153299337da87b24ed73b2b2190087a5bea99f

    SHA512

    69cf94af0169638624f21c16ff5a6b9e96523668f69cac64961e81cd88fcb309895af811016bd9af737ec2f96c2fcb9e3f10a96ddb2a0958571d3bb94749ef7a

    Download Submit

  • /data/data/com.dehodigipuhixoyi.mafuko/app_among/oat/WLYyAED.json.cur.prof
    Filesize

    2KB

    MD5

    6628f3a75fc9fa85938b1f9957e27bab

    SHA1

    427d9209a20f8f3b8134061ceaf70c038d380051

    SHA256

    d140fea86f97cd15812fd59a0640de3e5e87d80620ad3c796a6736d10a7035fe

    SHA512

    6477e9cca2ebb7fd77399f172bc162f2be2dadab24790e17f44a0c49c54ed905cb77ec54d4dfdb84195848c60ea9e64408049c9a3e6f786dec757c16cc65c890

    Download Submit

  • /data/data/com.dehodigipuhixoyi.mafuko/no_backup/androidx.work.workdb
    Filesize

    4KB

    MD5

    f2b4b0190b9f384ca885f0c8c9b14700

    SHA1

    934ff2646757b5b6e7f20f6a0aa76c7f995d9361

    SHA256

    0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

    SHA512

    ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

    Download Submit

  • /data/data/com.dehodigipuhixoyi.mafuko/no_backup/androidx.work.workdb-journal
    Filesize

    512B

    MD5

    129356898ff89d1258da3520694fc79b

    SHA1

    c226c39188df55d9db4899a9d368b0a6641aae5f

    SHA256

    8e4ffe46bd2485ad9082b4832201ed3df76a6bfaae9f5b850a8c7619a1955ddb

    SHA512

    3d493f8b2a4cde98ae4c93111df00be43195bdce825f85bee2b0b860f2cb556a70b6860d5ded0b8f7784931d79cb05bbde997c7dc0a38d6f99a2f1d850ac2ca6

    Download Submit

  • /data/data/com.dehodigipuhixoyi.mafuko/no_backup/androidx.work.workdb-shm
    Filesize

    32KB

    MD5

    bb7df04e1b0a2570657527a7e108ae23

    SHA1

    5188431849b4613152fd7bdba6a3ff0a4fd6424b

    SHA256

    c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

    SHA512

    768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

    Download Submit

  • /data/data/com.dehodigipuhixoyi.mafuko/no_backup/androidx.work.workdb-wal
    Filesize

    108KB

    MD5

    fb5b7cb0d91cda9470804ef1b5c4d565

    SHA1

    4bacc44ce3a70fd2982a6ba62bcf400fe8567b25

    SHA256

    b127051cb0436be836cf64d4468276841e6a03e534a500dfeb2ac63649aff525

    SHA512

    363b542519b2ec84d88f39ac5b19526c09d23b26848984bd9d81bda688186d5547260b7568bd72b7fe401299b8ccf3993672c24bc1b440509e16c19582dbb995

    Download Submit

  • /data/data/com.dehodigipuhixoyi.mafuko/no_backup/androidx.work.workdb-wal
    Filesize

    173KB

    MD5

    2a1371caff9a13eb56ac84ee018080eb

    SHA1

    579a67f28f4014a3752cfae70cda04a5d67722f2

    SHA256

    992f2eb5b14f80fed35c5998caaf74e67df7bee5fffe580d9b8a264b51604ae6

    SHA512

    8b7926ccf7055e63df6d7ecd64bf7200a744248fbc30f1d9d5276bd2b9675eb60eca23b71ff348102c2bb9f143e251d34e70a80aca459e9b1056145ddfc33797

    Download Submit

  • /data/data/com.dehodigipuhixoyi.mafuko/no_backup/androidx.work.workdb-wal
    Filesize

    16KB

    MD5

    8550ca31d050c64e11d1ff116debf64c

    SHA1

    6999243e2fa91eb730504de33f25d26bc43c964c

    SHA256

    d4d35bc57ba722eb750037ecc4bd393a6b2db8ec6f383a370ede20b13045af05

    SHA512

    b6b67e976e4d88412083cffddde979e47d10102e39a0bdc03cc96d2ff304041c1b4453a5f8802ee91d0fa8df0d5c6e966c410ed1789cd7b3b3326224bde27506

    Download Submit

  • /data/user/0/com.dehodigipuhixoyi.mafuko/app_among/WLYyAED.json
    Filesize

    1.7MB

    MD5

    8fadffa69af8e845a5eb5739f55259e9

    SHA1

    d91323223a2f4b2b079132954c906987567d41e8

    SHA256

    2a68cd5ae1b0749d85759813cab00c224633a3b15d4a8241758c36ebf9715fb3

    SHA512

    d539f99e9f1f5203544cdf73a3617b5f5285d1d5a2b020e2cd8f5b01e8ef4cc39bb45f3cabf4c58ee2b079c174236a276a582d49c0a8e7ed655fe0596588a594

    Download Submit

  • /data/user/0/com.dehodigipuhixoyi.mafuko/app_among/WLYyAED.json
    Filesize

    1.7MB

    MD5

    dfa78d2e6c4710c1d9c4ab8a19adc6b5

    SHA1

    741f84e444689cc2abbe6af2d1088378f36a0019

    SHA256

    d227f02bbbc8d4b36ac27c414288df4cecf8370420eeb8d266ee42e86f35db00

    SHA512

    7f0658a1d6c6a6d9e006807f320debce8b54c26be4012dc18477f2fce70bb346cd7b07770a75c29ef2482e22cd2fe670b8fa81957392651d6aaf884ec8cd3af5

    Download Submit