Overview

overview

10

Static

static

6

cd96afccbd...53.apk

android-9-x86

10

cd96afccbd...53.apk

android-10-x64

10

cd96afccbd...53.apk

android-11-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    150s
  • 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
    22-01-2025 22:05

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General

  • Target

    cd96afccbd93f67e79f15acf0a613e717cad7ecbff4c59a7d0ebd5dbf15e2753.apk

  • Size

    3.9MB

  • MD5

    6b554303af3059155d2012e1c68f38f5

  • SHA1

    b4dc4fc7f36dc3b12d7ca6b669231d8ce4c1bb7c

  • SHA256

    cd96afccbd93f67e79f15acf0a613e717cad7ecbff4c59a7d0ebd5dbf15e2753

  • SHA512

    95d5f1fd83b8ad931db40838b03eddd44f976b40c4df92674d07d68b31d52cefe700f8eb4c11d4f2ac68a6c8de5a514742c71d69393cfa1d8a1283233d4f8e90

  • SSDEEP

    98304:0wUXCFKo2vNgQ72hGc2kgGT9veh/ktVZTHo:A1vuc4GyTch/ktHI

Score
10/10
hookcollectioncredential_accessdefense_evasiondiscoveryevasionexecutionimpactinfostealerpersistencerattrojan

Malware Config

Extracted

Family

hook

C2

http://154.216.17.184

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 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 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
  • 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.ypukjnsgy.yzrdtfuxe
    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:4217
    • /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.ypukjnsgy.yzrdtfuxe/app_dex/classes.dex --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.ypukjnsgy.yzrdtfuxe/app_dex/oat/x86/classes.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4242

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

System Information Discovery

2
T1426

System Network Configuration Discovery

3
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.ypukjnsgy.yzrdtfuxe/app_dex/classes.dex
    Filesize

    2.9MB

    MD5

    de08270e0c9fd5ddb071188beb138101

    SHA1

    28b0d5bb7e0bbe688e7e3ec6b94260e27c420045

    SHA256

    e66237024d7f9c0199c708245e15b2c7ae969140b3da344c73c167d46486e5a7

    SHA512

    d291b976589d90dae36356e96af976c25e1a83c7c9d37010bc527a09fb455456effb9874a881068dbc36d6c75cf9d682593b75969e41cdd570eed0f746d93d98

    Download Submit

  • /data/data/com.ypukjnsgy.yzrdtfuxe/cache/classes.dex
    Filesize

    1.0MB

    MD5

    b0c5b21cd72deae95c2c39ab2b13fe6c

    SHA1

    5aac752200de6b97790963f04f22146c4a641ea9

    SHA256

    3679a10ccea2627c3a043b24e2013c629a24b4516280ca55b0edacffbc0a79f6

    SHA512

    4486178bf55a42972b7a5253bed7c682d5c8a5ff7b9d8f6f1c021f91c25cb003c7aecfedeabb18e79d27b8d3c118c02ebe893530f161113de144fa822c3bd2b7

    Download Submit

  • /data/data/com.ypukjnsgy.yzrdtfuxe/cache/classes.zip
    Filesize

    1.0MB

    MD5

    eca512dd2abf5951376ae2ffa86e5f07

    SHA1

    bfad840abc8d682f29282b5961f2544323c16e74

    SHA256

    406ea236eed12dc813943126dab415d3f1b0070d03e3fefb6c006aca69d1c5dc

    SHA512

    a66d74aa8c2ee6c98173fb1374def554c4e32d98c3c20b8213c5684a823f7b71eb6212770bb1dc1ed6594417cdabb31bae33f511950bcc66fd5cc6039223747d

    Download Submit

  • /data/data/com.ypukjnsgy.yzrdtfuxe/no_backup/androidx.work.workdb
    Filesize

    4KB

    MD5

    f2b4b0190b9f384ca885f0c8c9b14700

    SHA1

    934ff2646757b5b6e7f20f6a0aa76c7f995d9361

    SHA256

    0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

    SHA512

    ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

    Download Submit

  • /data/data/com.ypukjnsgy.yzrdtfuxe/no_backup/androidx.work.workdb-journal
    Filesize

    512B

    MD5

    e1215ea7e6fdc205191daeb00429e67e

    SHA1

    feb8c3b98b4f91b4f4a3ccf97b5e7046827de005

    SHA256

    a112a391c9de4cd867463b96c59095ca776dd60d001fc7d1985b0248b33d5af9

    SHA512

    7d5e24eda44bba46441dd1e52ad11ee7570f1c077d43d8512c5c8f7d5eff5df93b9f1128b86994b0867405dc13574e742c224723afc20276e8ce23b4c07f4fa4

    Download Submit

  • /data/data/com.ypukjnsgy.yzrdtfuxe/no_backup/androidx.work.workdb-shm
    Filesize

    32KB

    MD5

    bb7df04e1b0a2570657527a7e108ae23

    SHA1

    5188431849b4613152fd7bdba6a3ff0a4fd6424b

    SHA256

    c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

    SHA512

    768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

    Download Submit

  • /data/data/com.ypukjnsgy.yzrdtfuxe/no_backup/androidx.work.workdb-wal
    Filesize

    108KB

    MD5

    f608579f7018fb40b4799c8955c7bf3f

    SHA1

    29121d6cf55ada2ee04e037c7d1b4fa41bbaa8f1

    SHA256

    c27bcbf7dea850a4cc7965c4810153c87763ee6974788f7a1ac1a0fdb20d7a50

    SHA512

    5625bea4884ca8ce8cdf1936c2dae5d98c525d4baa74dee538cab8e3de3008e3d468aa5b6a95eaaf9de3cb9685be6194a28cc91eff29afef0293343cff9786c3

    Download Submit

  • /data/data/com.ypukjnsgy.yzrdtfuxe/no_backup/androidx.work.workdb-wal
    Filesize

    173KB

    MD5

    d66c59bf5f97e23b04f47b8f7c38ea82

    SHA1

    6e51f79ee9257ed9c9bb5ba55fc836c964d57733

    SHA256

    e2faf08d43af6e0983dacbbc84bbc10b78c5baef467a43bc112c37268c66bcbc

    SHA512

    06f130158518eec4589f4e4b485949faa79119ed01435105335c3dace5839373567bd0b8d793118f6d631a099afd4445cd0b81975a1b483d9a181f03df0c0d5e

    Download Submit

  • /data/data/com.ypukjnsgy.yzrdtfuxe/no_backup/androidx.work.workdb-wal
    Filesize

    16KB

    MD5

    c7282467bcb6d47f7acab8fdbdaf813e

    SHA1

    b5bcde122e88abba82af49245f47ac48556f260d

    SHA256

    ec107ddad078384cb33f2e5b5e7d6399e9378826030113262ab892e190ae4221

    SHA512

    cdbc6b51228ff5c338e5935ae5a037dc3efa2f01ccf216f922a5700f85db34feae7a6c244c7a52a80781303b338b2469552dfd6b4b1f631c3c8df8b1c14efd7a

    Download Submit

  • /data/user/0/com.ypukjnsgy.yzrdtfuxe/app_dex/classes.dex
    Filesize

    2.9MB

    MD5

    98f5fb48aba1777f6764aaf6bc419828

    SHA1

    36c7776b7ddf2350b80f91af96670e76b30a7995

    SHA256

    2aa0ca33cf3e0e333dfe0a5579b1131ce45c2fa4a26b6f201448f5a2d95080db

    SHA512

    c934bc9fac4c375ab5cb41e3f495b3cf42459166baf682a16fc69fee1e0a71d3413936a2723e33401273ce80c982ea707d0fce1d15405972d5a1d6649b370fba

    Download Submit