Overview

overview

10

Static

static

6

a75eb15a5a...05.apk

android-9-x86

10

a75eb15a5a...05.apk

android-10-x64

7

a75eb15a5a...05.apk

android-11-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    152s
  • 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
    06-11-2024 22:09

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General

  • Target

    a75eb15a5a79c91fa17e3da290583033d8f5ba1eb628c80fa795c1f2a4f64405.apk

  • Size

    4.3MB

  • MD5

    0d65aee98eb0efb5ceb0644bb90544a7

  • SHA1

    bbab5e4d1067eb545c04e4e8387822d1ff6744b4

  • SHA256

    a75eb15a5a79c91fa17e3da290583033d8f5ba1eb628c80fa795c1f2a4f64405

  • SHA512

    e666da9d8d9aff200b8d99b9b1ffe4b409473a26c994e8821fbb7f6a0bb731c5e7f45a64e44a21ae768f0cfc5cf6a07582614e2fc285ed088b963561fba26945

  • SSDEEP

    98304:9q5GXeBoIDwWmqGVfvz4tyMIMntintv8Tubn53hIsYiNy8n65Xmdurh:sAeBbDwWm/vMBStdnVh7nhurh

Score
10/10
hookbankercollectioncredential_accessdiscoveryevasionexecutionimpactinfostealerpersistencerattrojan

Malware Config

Extracted

Family

hook

C2

http://91.202.233.15

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 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.vmcsxchqc.rmwmcfywx
    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:4332
    • /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.vmcsxchqc.rmwmcfywx/app_dex/classes.dex --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.vmcsxchqc.rmwmcfywx/app_dex/oat/x86/classes.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4357

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.vmcsxchqc.rmwmcfywx/app_dex/classes.dex
    Filesize

    2.9MB

    MD5

    e2cd81a6a3e3cb9d6c5584ea55653c13

    SHA1

    e75fa832d3a31c338d86b17609e62ed91357b72a

    SHA256

    3d3c95646f6a86493685d64a9dc7362f4f84c3394463f32a61adc7b3c9d07241

    SHA512

    1f5b5afd4aa0cfc049166f7461deea4164c2c230cf3fb6e128dad072f13e03df350ede0a8b8a4b4512fda8d579c2495a52b98232ab27367096b5707de191dbfd

    Download Submit

  • /data/data/com.vmcsxchqc.rmwmcfywx/cache/classes.dex
    Filesize

    1.0MB

    MD5

    697d90cf18b6189b707aa18ee4057322

    SHA1

    807e466d986783e32e41f4de8323aceadd0d429f

    SHA256

    a959145b9575328748825d5eb5abe8a97b86e26f1dafa462e91fe5d84477f963

    SHA512

    ad5f77101b238c036a46f75cffde6b72c7185b1bd5a7cb396ec7b657c92cf90cbe0bf80b5a868cd318fdbb5139186a808869aa248222439f62a4f64286cf8776

    Download Submit

  • /data/data/com.vmcsxchqc.rmwmcfywx/cache/classes.zip
    Filesize

    1.0MB

    MD5

    aae366e8367699c4a5cb9320d7c9d16c

    SHA1

    400f324ccf5773749ad37b3afa9b58ce5ef1cf33

    SHA256

    41baf2681352fa19b42b4448d0195c5d09a6096d99c31ee6151155b60737400e

    SHA512

    edd3d8ee0c14572bc91c510b21a5ac89e505bcccd7abedc5488f2b4d9fdcd73d70810c40db8917c1e9599a1a5a369aa3ff1f19949d3861dc81c3929b57982cc3

    Download Submit

  • /data/data/com.vmcsxchqc.rmwmcfywx/no_backup/androidx.work.workdb
    Filesize

    4KB

    MD5

    f2b4b0190b9f384ca885f0c8c9b14700

    SHA1

    934ff2646757b5b6e7f20f6a0aa76c7f995d9361

    SHA256

    0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

    SHA512

    ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

    Download Submit

  • /data/data/com.vmcsxchqc.rmwmcfywx/no_backup/androidx.work.workdb-journal
    Filesize

    512B

    MD5

    ed8114a96f110078a8092a90a962a64d

    SHA1

    0940220719ad41c9ecb9d4465feb485b3e51275f

    SHA256

    c37fcc6501d58140fa7aa1814af7cae7509b70d9175b201dc4eff9049896d9d6

    SHA512

    f03004a98e79876ada62b940d68d308b618f4059672cd50c5683a17e4781ad6bef249a19c42c840a4f8c55136482ce227f6071a3c8b60b32d5093f68cac48d4c

    Download Submit

  • /data/data/com.vmcsxchqc.rmwmcfywx/no_backup/androidx.work.workdb-shm
    Filesize

    32KB

    MD5

    bb7df04e1b0a2570657527a7e108ae23

    SHA1

    5188431849b4613152fd7bdba6a3ff0a4fd6424b

    SHA256

    c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

    SHA512

    768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

    Download Submit

  • /data/data/com.vmcsxchqc.rmwmcfywx/no_backup/androidx.work.workdb-wal
    Filesize

    108KB

    MD5

    3e3b7ef1bf477df6c9ce044fe94eb653

    SHA1

    c2cb40431f428cfdd0c36ffbb955797dcb17690a

    SHA256

    fc428d485f83eead8299d9ac52672212c45039dd57c24664e4f9f6363a590baf

    SHA512

    c0c65bd61601d92524641c06fec4782f5fae7c98ade113da5a9005fd2e141f535042e496023d76f39e74e6d4fc4e3a1da80482c33d764fda3696bb0c703f9d5f

    Download Submit

  • /data/data/com.vmcsxchqc.rmwmcfywx/no_backup/androidx.work.workdb-wal
    Filesize

    173KB

    MD5

    f1bc99444ba8186f8ee034185220435f

    SHA1

    39648bc7af5ea58ee794decee10caecb2e3e06e0

    SHA256

    83559d6c3e0d2fc5643867e1c3569a51a7801d5f488538f8841bea882eb2e5f2

    SHA512

    1ab8389d71101b124e365f7ef9b1a6a9b7943e763cd9d22426b2543ea6da018bb8994fa73d88dff3e9523d797faa90812dca85ed55c38e34448be65020ba7f3f

    Download Submit

  • /data/data/com.vmcsxchqc.rmwmcfywx/no_backup/androidx.work.workdb-wal
    Filesize

    16KB

    MD5

    625ca5ad48bb4f5d5d642795dc98d511

    SHA1

    9c56f67fbe8ffd9ae29531026c2ca2fb6ecb54e4

    SHA256

    caac954e5cdd684517c152c1d827e1c0953629ed01ac8483ba4c336395c1e8ef

    SHA512

    740b93392127ceefa05e1850cb0def9cff6275061c65a34be99d2a7ff5dd506fb1f6c798854cb5d14f2d2f31b91be4bdd68c68bf2a4ba75bd36259e26ef769db

    Download Submit

  • /data/user/0/com.vmcsxchqc.rmwmcfywx/app_dex/classes.dex
    Filesize

    2.9MB

    MD5

    f77f12013b4536af2079978070a5199b

    SHA1

    ef9f31435499d42d38dc110fe4c31d83ac81b30a

    SHA256

    e89dfff0d4a5cfbaa2a1cc62390013e0f2bc6884f5d940cf494b827fcbe63c96

    SHA512

    3d86d8ed8e85e2bb3283d4332bb1f26e7925bd87df66063e25e54716a4c929619da9ad8139333b02bb87c79cd84364a847580bd5529dad81218c268c31edd437

    Download Submit