Overview

overview

10

Static

static

6

443a7d9c1c...9a.apk

android-9-x86

10

443a7d9c1c...9a.apk

android-10-x64

10

443a7d9c1c...9a.apk

android-11-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    android-9_x86
  • resource
    android-x86-arm-20240910-en
  • resource tags

    arch:armarch:x86image:android-x86-arm-20240910-enlocale:en-usos:android-9-x86system
  • submitted
    20-01-2025 22:07

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General

  • Target

    443a7d9c1c2d42e5599ba108d96af71b499d6414f8dbf45d3855d93062b97f9a.apk

  • Size

    5.0MB

  • MD5

    d62f8771384adbac4c2137db36a56239

  • SHA1

    fbb6c1ef42dc56fa256e1ad4424c00f3f37ccfc5

  • SHA256

    443a7d9c1c2d42e5599ba108d96af71b499d6414f8dbf45d3855d93062b97f9a

  • SHA512

    f9cad909d0243247a285aaef0314d74ff0cef33d97bb05ea54b39622c66ff1ec39d33e7be20b5cf33d78ce133d58e43eb3d3a170a8a269c68abab298d3807b89

  • SSDEEP

    98304:GJbhcB9yCtWfAUpLBx5gJB223z8SgwgGgAyuWf/CZBA1kBTd5SiD22:whSkM1cLz5gJBH3wNNGgYUC4kBT7SiDb

Score
10/10
hookbankercollectioncredential_accessdefense_evasiondiscoveryevasionexecutionimpactinfostealerpersistencerattrojan

Malware Config

Extracted

Family

hook

C2

http://154.216.17.69

DES_key
AES_key

Signatures

  • Hook

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

    rattrojaninfostealerhook
  • Hook family
    hook
  • 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.

    collectiondefense_evasioncredential_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.

    defense_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
  • Requests accessing notifications (often used to intercept notifications before users become aware). 1 TTPs 1 IoCs
    collectioncredential_access
  • 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.fxlfwvcik.kcdszsfrs
    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)
    • Requests accessing notifications (often used to intercept notifications before users become aware).
    • 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:4340
    • /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.fxlfwvcik.kcdszsfrs/app_dex/classes.dex --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.fxlfwvcik.kcdszsfrs/app_dex/oat/x86/classes.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4365

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

Access Notifications

1
T1517

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

Access Notifications

1
T1517

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.fxlfwvcik.kcdszsfrs/app_dex/classes.dex
    Filesize

    2.9MB

    MD5

    1702a43faf35f8b1575d6de10470ca24

    SHA1

    7a40328a649593f64441b85ce0bcd5b549f7a219

    SHA256

    ff712f209c9d20110192c3b7e56b4891f5aed2710e18d55d811561077c3a535e

    SHA512

    9f8eda29db1b0e450e6f520ef4efe0d7be7683cfc0e489b2a35b664a42de35d91db2c26ec168a11386d4236b87ba3cce389b52609dcf4e54e187d395364fe3a6

    Download Submit

  • /data/data/com.fxlfwvcik.kcdszsfrs/cache/classes.dex
    Filesize

    1.0MB

    MD5

    7f78bc6105199610b76e19f55fcd1e0f

    SHA1

    b68bdd71d4da27ce0022fcfe978257c6889d5e80

    SHA256

    60ea4caa81eb4ea6bf8992b6f07dd023de32fcc63916b9072488138f4ca53d84

    SHA512

    0d206651f277ea1579b0875ac9ec8c155dc52dc14729321eb7213d9ae5603681452f5a16d7800c98c4c99cd62c6ff098cde279dac382cdb127f69ae91e90c0df

    Download Submit

  • /data/data/com.fxlfwvcik.kcdszsfrs/cache/classes.zip
    Filesize

    1.0MB

    MD5

    d2f078c7b5c0a532a06a97a93f9adeed

    SHA1

    c27383f78797700f127a610d9a4ee2d363b662c3

    SHA256

    2c86d195530fa61368f0459a26092d84634278cd6273aa5744ca97245b221c9d

    SHA512

    ac9274ce3fac6288ad3816d11a77a77ef738174319237b67f2a34f90295776bc84a765be0d27101c435a016fbf87e367412bde696ce4cc7c0da51f20cd0a5ac8

    Download Submit

  • /data/data/com.fxlfwvcik.kcdszsfrs/no_backup/androidx.work.workdb
    Filesize

    4KB

    MD5

    f2b4b0190b9f384ca885f0c8c9b14700

    SHA1

    934ff2646757b5b6e7f20f6a0aa76c7f995d9361

    SHA256

    0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

    SHA512

    ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

    Download Submit

  • /data/data/com.fxlfwvcik.kcdszsfrs/no_backup/androidx.work.workdb-journal
    Filesize

    512B

    MD5

    8f63a363254d44e2f8aa4dda8668a2b2

    SHA1

    a93e5a58340a60756b7243e121bacd7fd5243c38

    SHA256

    456c844ff0c77bd2dc69dd90778a22a7e2b4ee5ca64aa53f5e13516d97edb2c5

    SHA512

    83ade81c9ab57dbbaeba6fb78c13a71186e71bf7c76ff2795b831bc979ecfc132d3e1d407dbfba58825f1ec726e627f14fd978253f21e9c22ead75e10defbb6d

    Download Submit

  • /data/data/com.fxlfwvcik.kcdszsfrs/no_backup/androidx.work.workdb-shm
    Filesize

    32KB

    MD5

    bb7df04e1b0a2570657527a7e108ae23

    SHA1

    5188431849b4613152fd7bdba6a3ff0a4fd6424b

    SHA256

    c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

    SHA512

    768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

    Download Submit

  • /data/data/com.fxlfwvcik.kcdszsfrs/no_backup/androidx.work.workdb-wal
    Filesize

    108KB

    MD5

    2181ff060015a2fa5860321b161565d9

    SHA1

    0c021c5cfd02b679cb4a5252fc2fabb73d022a5e

    SHA256

    f8f7a601907d7420994e588a07c10f0a4bc1074c8c725ae59f704d889a051501

    SHA512

    10b3e719ee2c9bbcc7d5900e0a4756174124f277fd604a51b6b87a4a00b0ee53084383f2278428101c33af714f0724bff9c6104961f1262682695810a577ad84

    Download Submit

  • /data/data/com.fxlfwvcik.kcdszsfrs/no_backup/androidx.work.workdb-wal
    Filesize

    173KB

    MD5

    e615305ba9e837e3e64a38ba431beef6

    SHA1

    329b75078daee5be41d8056723d1ee0176995674

    SHA256

    d0740a029639485464eb5fe7b30bf44f3954d5d45f7b22308833bc42f25b0768

    SHA512

    2d6e3a569993a45bc12f90807f1060f667e5595f4b6c3e147a32b9d34ea20c0ba754bfa71145d55220cc463ce494d7f11f9d4c2cb94b9e15bac63807ed91815d

    Download Submit

  • /data/data/com.fxlfwvcik.kcdszsfrs/no_backup/androidx.work.workdb-wal
    Filesize

    16KB

    MD5

    04726904950d5ba96369b01c51d5c603

    SHA1

    efe611f03c49c612169c83e691152e191d433d8c

    SHA256

    411ec4aaf2ee78654bd71785efec271c47eeca97b25a766bb0d9c8b3fc83ab09

    SHA512

    9e8ea3cec6c740c7e3dd4321fa40c836565f10ac2f757f9ee4ae15fa6c00506be09543ed5a1c9add1062e4f5b500b055aa720f541e4cafe0059f4ba3629345a3

    Download Submit

  • /data/user/0/com.fxlfwvcik.kcdszsfrs/app_dex/classes.dex
    Filesize

    2.9MB

    MD5

    c9c1359db5e87136b2bfa8e482ff8bf0

    SHA1

    f9847aa363e53150d44aeb78a9df6c77d0bcdde8

    SHA256

    0cec94e695b1ca90e931166ba460869ffe7c0cfa83cdcd7beaf8e969f5c2e03a

    SHA512

    6e87a1ba551f91e343da2f5dfdc82d5a9543dd9c948fa81dea149123c34fd67b4c61e3121dc30ca492760d49bc0875ba2095be87dc442c546057ddbd9ddc4566

    Download Submit