Overview

overview

10

Static

static

6

5cc82c445b...fa.apk

android-9-x86

10

5cc82c445b...fa.apk

android-10-x64

10

5cc82c445b...fa.apk

android-11-x64

10

Analysis

  • max time kernel
    147s
  • max time network
    158s
  • 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
    24-12-2024 22:06

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General

  • Target

    5cc82c445bd3caa9da02fdd8e6f9d06211a823db9f39f94ee201e0ab47ee55fa.apk

  • Size

    4.8MB

  • MD5

    bfebf256cb1eab674a44fc384026141f

  • SHA1

    57fcc655ed485300dd671f8a51f669968ccc093a

  • SHA256

    5cc82c445bd3caa9da02fdd8e6f9d06211a823db9f39f94ee201e0ab47ee55fa

  • SHA512

    40602f02145328a599541232b6d6d4c54b54fe404911236ec032c3794d4e590e246d61d72643b15665c832b6ccc2c7873a3de81fda66d0bfb6000539875c819a

  • SSDEEP

    98304:7Nc1BktHgHhLY3qFSOIdxDbrXDXNTloJbfdapK8I0If3F:BkyHf2FyxX7DXNTloplp8I0IN

Score
10/10
hookbankercollectioncredential_accessdiscoveryevasionexecutionimpactinfostealerpersistencerattrojan

Malware Config

Extracted

Family

hook

C2

http://154.216.20.102

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.

    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
  • 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.nwybcynna.hukmpcfas
    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:4222
    • /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.nwybcynna.hukmpcfas/app_dex/classes.dex --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.nwybcynna.hukmpcfas/app_dex/oat/x86/classes.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4249

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.nwybcynna.hukmpcfas/app_dex/classes.dex
    Filesize

    2.9MB

    MD5

    a5f6abd47e42ea2ffbe99d78fda1ad4f

    SHA1

    39a0109499ee5cc44accbfefd80bb192058e571e

    SHA256

    7c3d47dfd938e2f38e782bbe82ea7f484660034f62f6fb4ddea0b891b3991019

    SHA512

    d3efe6f2a3454700db6ff2b02d4b765d3e3e0e7764854cabb68166e6c5b85086f80643698394177577a1c3aa6f4203989f98d94ddbebb95809773cefd4c90b5e

    Download Submit

  • /data/data/com.nwybcynna.hukmpcfas/cache/classes.dex
    Filesize

    1.0MB

    MD5

    d6dc3bd7afc7c7110661697f450b3d36

    SHA1

    729429de933755ad7a06382e0b43f50163d0f986

    SHA256

    80cd42115a61ad9bb1d0a6e6431bbb5fa3500c2862a04e52fc107f8d81090c1c

    SHA512

    25c1a21cbab20a4e045da5968e20b188d207109fbdb385196ca64cd16d9f49c5542453d30ab2d1bfc1040487e0046fa0e5c908b423ec0dbf986f76449586a804

    Download Submit

  • /data/data/com.nwybcynna.hukmpcfas/cache/classes.zip
    Filesize

    1.0MB

    MD5

    400eb1ea3f0c5e3b8953b4d2203d117d

    SHA1

    0f95e89686033b44baba9439a1d9ad8441bf18a7

    SHA256

    ffe6105f59b7e3f44f578df8fb563ee6c17fc19a2d945dcc3e097283fbd9d3f9

    SHA512

    2d548f80b351c4921761eb7658a8233f92fb7719ff9e6035fa54300073ec59dba5f68b6205ee3cf502a0daf2a35cef535922882c96c2050773edf1ce6ba8c662

    Download Submit

  • /data/data/com.nwybcynna.hukmpcfas/no_backup/androidx.work.workdb
    Filesize

    4KB

    MD5

    f2b4b0190b9f384ca885f0c8c9b14700

    SHA1

    934ff2646757b5b6e7f20f6a0aa76c7f995d9361

    SHA256

    0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

    SHA512

    ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

    Download Submit

  • /data/data/com.nwybcynna.hukmpcfas/no_backup/androidx.work.workdb-journal
    Filesize

    512B

    MD5

    2d51c16fde032bfaf2c66b0a9890cdc0

    SHA1

    5be5ab0ca3d315153877ed9b14581fbe231e30f1

    SHA256

    4a315978760450bfc819e117e937578e15718adc95ae7273af7971af44c04329

    SHA512

    9f3c7ba1306cfb03ca98cffd0dcb7767db4470afacdbcb70982b18eba455e75a44a38dfe95dd451961142f5414d97261e7666b2d547cafc8e020e0bee5771060

    Download Submit

  • /data/data/com.nwybcynna.hukmpcfas/no_backup/androidx.work.workdb-shm
    Filesize

    32KB

    MD5

    bb7df04e1b0a2570657527a7e108ae23

    SHA1

    5188431849b4613152fd7bdba6a3ff0a4fd6424b

    SHA256

    c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

    SHA512

    768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

    Download Submit

  • /data/data/com.nwybcynna.hukmpcfas/no_backup/androidx.work.workdb-wal
    Filesize

    108KB

    MD5

    c892dec6f1f87709b124b91276641f0a

    SHA1

    ea2b9d6567897ca99261d74b691c3fdd328a4cbc

    SHA256

    941bf46993d7b7062be66f80624dc72b09e32f3392070b86024a6f312c7f17e5

    SHA512

    a4ba068fbb1e9647229d6efb7a2dda77dc286fb3c5bb6692d648b55a172ae6f65360990a71bfacc38210420b4033b32b99bb959a67705dd42ad05f370cabbb82

    Download Submit

  • /data/data/com.nwybcynna.hukmpcfas/no_backup/androidx.work.workdb-wal
    Filesize

    173KB

    MD5

    82f4289b41546a7a836b49d645fcb318

    SHA1

    1755857432fdb63ac8e6699fedd40388e71d884a

    SHA256

    d392a89bfa8422119bb73eacab5d08cd91f8296ebe54b5e3eded2a50e50c39f1

    SHA512

    80d5081f0bf5cec15a86c6a6571d9fe3b2733c4b5de61fedadf7fd3b4a36ed724f203cfb6deca70acbf9d9d311a8026ead0896bbef4911683d9fa4fb1a6ec65b

    Download Submit

  • /data/data/com.nwybcynna.hukmpcfas/no_backup/androidx.work.workdb-wal
    Filesize

    16KB

    MD5

    77f743c657a6c8368e5a464f9e20fdee

    SHA1

    ce41a6d75b6eb127abab1a4a201a3cf613a86dbb

    SHA256

    a45e4cc65b73bded3dd38e4f0f32e247b657c5ffdb7e09e759260e26a3a5fbd7

    SHA512

    d4f96cae703b869b2b7504943b2dc4bfd65ed658366f6fef750868aa30b68d372d18a7ba30a9fe663523fec804dcc28649e878b0f3fb60a49670130c48e2be01

    Download Submit

  • /data/user/0/com.nwybcynna.hukmpcfas/app_dex/classes.dex
    Filesize

    2.9MB

    MD5

    6da1a8b7bb5ba8b21a4b6a14bf6199b3

    SHA1

    80ab9939b3c3da496f7c4bc4fd4fb4e1edd32678

    SHA256

    d79305fd375bccaca41583cd10f3ddaad0301002f25f356a12596f19c30ceac6

    SHA512

    df0daaa8a9dbab299305abdfbefc16cfe8ce3d72d3c0a3c9e6c807fe644f0ef0e5641f8bf7de33957266b978e071adcaf93e5e7a2257ff4daadbafe8d3f71fe8

    Download Submit