Overview

overview

10

Static

static

6

fa38e83fb3...6f.apk

android-9-x86

10

fa38e83fb3...6f.apk

android-10-x64

10

fa38e83fb3...6f.apk

android-11-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    159s
  • platform
    android_x64
  • resource
    android-x64-20240624-en
  • resource tags

    androidarch:x64arch:x86image:android-x64-20240624-enlocale:en-usos:android-10-x64system
  • submitted
    14-01-2025 22:00

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General

  • Target

    fa38e83fb3671a46a81588270447804d6b6fd582f1097bcb83403f48a92d3c6f.apk

  • Size

    2.9MB

  • MD5

    264b546ecd0f21514fcd34034d20b375

  • SHA1

    cea0b5218d3b0c513c726a5754f20b3aa3b56b06

  • SHA256

    fa38e83fb3671a46a81588270447804d6b6fd582f1097bcb83403f48a92d3c6f

  • SHA512

    0b1fd6d9fb4bf8d6b61b0ed9694951361f17f33868cda7867fd48b680c413d30e864152fbfb7b85d0a85ab1223ed02152dd42fbc01cf1d03e6ebeb31db586480

  • SSDEEP

    49152:HqQ58MSL+3bIOpdziY81Wuz9rg7FO0tMZ39KhKDuTrsEhtuS3Rqjnq4VPn7ZqC/7:HFyMSLKIe2Y+7zErotUTrHtvRq+gv9qQ

Score
10/10
ermachookbankercollectioncredential_accessdiscoveryevasionexecutionimpactinfostealerpersistencerattrojan

Malware Config

Extracted

Family

ermac

C2

http://154.216.18.137

AES_key

Extracted

Family

hook

C2

http://154.216.18.137

AES_key

Signatures

  • Ermac

    An Android banking trojan first seen in July 2021.

    bankertrojaninfostealerermac
  • Ermac family
    ermac
  • Ermac2 payload 1 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 1 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
  • Obtains sensitive information copied to the device clipboard 2 TTPs 1 IoCs

    Application may abuse the framework's APIs to obtain sensitive information copied to the device clipboard.

    collectioncredential_accessimpact
  • 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 8 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
  • 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.kaskasaslkasata.kuri
    1⤵
    • Loads dropped Dex/Jar
    • Makes use of the framework's Accessibility service
    • Obtains sensitive information copied to the device clipboard
    • 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:5000

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

Clipboard Data

1
T1414

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

3
T1422

System Network Connections Discovery

1
T1421

Lateral Movement

Collection

Clipboard Data

1
T1414

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

Data Manipulation

1
T1641

Transmitted Data Manipulation

1
T1641.001

Input Injection

1
T1516

Replay Monitor

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Downloads

  • /data/data/com.kaskasaslkasata.kuri/app_slot/SKja.json
    Filesize

    736KB

    MD5

    737752da762d9de1a28e32fc49eb72e3

    SHA1

    b2739d2102efa1f401547f0d31689c4b695fbe27

    SHA256

    3030081646124dc970f08fd8f031a4359e269657a16d579767a0421b7d64e3e3

    SHA512

    c00ce61d21ed5d7c3eef1240c3cd940abd028642f02b7898ceb07070749d1f59d39817f4033e3c65128174deadfbb243210ceca4a87e985ac50597d3bda69123

    Download Submit

  • /data/data/com.kaskasaslkasata.kuri/app_slot/SKja.json
    Filesize

    736KB

    MD5

    35dbd4d4bc1fd290aebb6b5339b62487

    SHA1

    5c7178af333481216f99ac3178b09586d4f37d18

    SHA256

    d3353684d46a65480b82ddc53b9653015d6cd5cef0d07980c056d253b674e88e

    SHA512

    107d043547cc0076a3956f85c4ce994122f677a7b60e4a0294e77d0fb48ea5d158dc557de9c870c4ebc8f93ffbcbbf5e23e8b9eded18db49d32e4e9b3b0cbb10

    Download Submit

  • /data/data/com.kaskasaslkasata.kuri/app_slot/oat/SKja.json.cur.prof
    Filesize

    3KB

    MD5

    bb6bacb309f844d2754771da0f8fb2a5

    SHA1

    aec3414a0b7b7db76e6ec9dd6fd1cee913d10f84

    SHA256

    383fb3cb02111d5e9ca105f4054f997e07b00a9e7e2dbd67ae235cbe23b82916

    SHA512

    50fe39d0187314bee59c499b0eee7579df483932e55a58c466d65fec095fb490f4e561f61555b9bb1bf52cff8a28d70b236fc2b7d423fb4e9f38b63d476f1280

    Download Submit

  • /data/data/com.kaskasaslkasata.kuri/app_slot/oat/SKja.json.cur.prof
    Filesize

    3KB

    MD5

    1f262171dd3083aa3dc12555cf7beac5

    SHA1

    d8c1b2888858a1dbc1d0635b8f82e3bb4dc3d455

    SHA256

    6f70339ce1a3a0d22c7fc07819ba94b6100542ca203e229c38b3c03dc2ffcf06

    SHA512

    848c2fbb84a557f5ef0179ab097b8b45fef7010189928a020f329acaaff4730233e25f6c6154079d92e213526eb8860cf5c064add57809a8e9c013bacfadd581

    Download Submit

  • /data/data/com.kaskasaslkasata.kuri/no_backup/androidx.work.workdb
    Filesize

    4KB

    MD5

    f2b4b0190b9f384ca885f0c8c9b14700

    SHA1

    934ff2646757b5b6e7f20f6a0aa76c7f995d9361

    SHA256

    0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

    SHA512

    ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

    Download Submit

  • /data/data/com.kaskasaslkasata.kuri/no_backup/androidx.work.workdb-journal
    Filesize

    512B

    MD5

    fa1335a9ec72831c2d47f0c57a670e03

    SHA1

    1d6ad39828f1f11ef959767da43427e59f66334b

    SHA256

    a1bc331b7fc8a585a8e78cb8196adc07ec549ca714daecf9403a0fb0b20e51ca

    SHA512

    b12f3419df83760c64605b757f04ca72bdbe2710e141e14422d7db9fe389f06a7c46de86b38e30c62224a93596433348639bef5737a66f17e6c604a5a20033e8

    Download Submit

  • /data/data/com.kaskasaslkasata.kuri/no_backup/androidx.work.workdb-shm
    Filesize

    32KB

    MD5

    bb7df04e1b0a2570657527a7e108ae23

    SHA1

    5188431849b4613152fd7bdba6a3ff0a4fd6424b

    SHA256

    c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

    SHA512

    768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

    Download Submit

  • /data/data/com.kaskasaslkasata.kuri/no_backup/androidx.work.workdb-wal
    Filesize

    16KB

    MD5

    179c88075c831fae47735d67fb1baa37

    SHA1

    8db71cc95e4e2e28b5ba617b9ee04fd067d96056

    SHA256

    d049dfc6e63520935743683c6485119f047d93d358d1f18a70f8391e5b050c72

    SHA512

    74ada9e53ca27ef10c1fff36bf7db7a4415e7b31d09762fe2c1101889aae4c2ff716536f7dcf68bba8a5ba87b44db9bc81e1c07c5f6d8d83b096fc1f2a47f593

    Download Submit

  • /data/data/com.kaskasaslkasata.kuri/no_backup/androidx.work.workdb-wal
    Filesize

    108KB

    MD5

    cb23a9425df3064d205925a7aa0a14ff

    SHA1

    a327abe821bbd34a2a5266bc5fb06779632306dd

    SHA256

    07c70d55032a72cb814ceb99e0d4587ea344262ee1d275304f6ff6f254007f9f

    SHA512

    d26a59806c3e1c4ec7f04aa59e5b8962d9c602ec6efd3373d5f6a46efb76da340e747bf682f3422ec81dcae67b626ef9f364056337f59c352c7baa77a9cdeac9

    Download Submit

  • /data/data/com.kaskasaslkasata.kuri/no_backup/androidx.work.workdb-wal
    Filesize

    173KB

    MD5

    41eda2d410e24ef8b3bf32da23e0299d

    SHA1

    26377229e0886f8802fe6a6602041d63996ac6f8

    SHA256

    55608bc961850c1c5320261b7e7d0cbbb6c82221abfc01088818077ca7d056ba

    SHA512

    9b62f42a93a036c75fd214c7dc263d24c65c7bc99458cd4985f253ab63525ffdc392203e43cdde186435f2b353420b39d854865a3686feabb0583b759353b282

    Download Submit

  • /data/user/0/com.kaskasaslkasata.kuri/app_slot/SKja.json
    Filesize

    1.7MB

    MD5

    b5a1aeefd71d8cbb9e33d373af5d291e

    SHA1

    d04776acf6adf304decd51d472ea7dbd5b3e0a43

    SHA256

    ebb2421d9052850293657f1560435e18d2a8c6e454ed72483f67b2f9f86d132b

    SHA512

    235301dd4ed83564bf233257f1acbf254d27ffd535cc08fc31866cd8cbfee70328215057848fc8ed59d28a0cf6b4220e00ada08b620bba159cff35441ad78d4e

    Download Submit