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
    02-10-2024 22:02

General

  • Target

    6baf0211c7aae5041fc5553ee7e0a1ed496dec535999ec0486261cf1a9fb02be.apk

  • Size

    3.4MB

  • MD5

    dd5ddf91605528aca5930f79ee64b486

  • SHA1

    1ac4ec74d9a908e9bc3fef8cb88c0bd3bb9f395a

  • SHA256

    6baf0211c7aae5041fc5553ee7e0a1ed496dec535999ec0486261cf1a9fb02be

  • SHA512

    7cd9c7ad21c985ab0c78fe6d64b962c79374e2d188dfdfaf227b4df0f6ac104d12373e8f251101b178f6f8c4aa4a285d711129575a17b109ecc1894f6a4a28c8

  • SSDEEP

    98304:3XZy9kcal9V3sQysfppLLOamr5gp6QrY2KEGbKl9h:nZyO39F3HOadxrhLxl9h

Malware Config

Extracted

Family

hook

C2

http://89.248.201.43

DES_key
AES_key

Signatures

  • Hook

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

  • Loads dropped Dex/Jar 1 TTPs 3 IoCs

    Runs executable file dropped to the device during analysis.

  • Makes use of the framework's Accessibility service 4 TTPs 3 IoCs

    Retrieves information displayed on the phone screen using AccessibilityService.

  • Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps) 1 TTPs
  • 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.

  • Queries the phone number (MSISDN for GSM devices) 1 TTPs
  • 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.

  • Performs UI accessibility actions on behalf of the user 1 TTPs 8 IoCs

    Application may abuse the accessibility service to prevent their removal.

  • 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.

  • Queries the mobile country code (MCC) 1 TTPs 1 IoCs
  • Reads information about phone network operator. 1 TTPs
  • Requests accessing notifications (often used to intercept notifications before users become aware). 1 TTPs 1 IoCs
  • Registers a broadcast receiver at runtime (usually for listening for system events) 1 TTPs 1 IoCs
  • 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.

  • Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
  • Checks CPU information 2 TTPs 1 IoCs
  • Checks memory information 2 TTPs 1 IoCs

Processes

  • com.chxdsjsbz.dnykbpzhs
    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:4330
    • /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.chxdsjsbz.dnykbpzhs/app_dex/classes.dex --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.chxdsjsbz.dnykbpzhs/app_dex/oat/x86/classes.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4356

Network

MITRE ATT&CK Mobile v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • /data/data/com.chxdsjsbz.dnykbpzhs/app_dex/classes.dex

    Filesize

    2.9MB

    MD5

    623eb693bafd551433486df0ceb0429a

    SHA1

    d0e7090b942db9f6a2a54fd905e5d14d955624fb

    SHA256

    1c703e82ecc1e84afd950f6ff9b5cfe25a5971010a79ab1a75911eba06ee111e

    SHA512

    24376884977ba64dcc9a72ca4b70888e740a06a720fadbf11afcce5c85ce1876775f57abbf56be80fb24476b61c4a318511d1d29bcc45e6e52a70dc59e55b262

  • /data/data/com.chxdsjsbz.dnykbpzhs/cache/classes.dex

    Filesize

    1.0MB

    MD5

    83d0bccc9a25538f24011655b434ab6f

    SHA1

    dbb4d103cb3e58dee14ac0d3ec80b34d433f8624

    SHA256

    a2bca56dc5cacee1a3dd2fbd65c73416960d0ab5a36af4861c92bddc416d1e31

    SHA512

    ef27bbfe333d734a33ba54738f0219371cc13f22732badf2cb0490c1851439cf52ff9d91fdeef55e66b03a35052f296aaa210f3cc5ff94ac90c145951cd2a395

  • /data/data/com.chxdsjsbz.dnykbpzhs/cache/classes.zip

    Filesize

    1.0MB

    MD5

    f17392ce10d688cdd977fa9f357ef0b6

    SHA1

    a56821309448ccf764fe9f0f529b54817a9a1795

    SHA256

    fa85100c43a032bff196627bdfe439ae0fe82375ffd55a33990f5fd913b6d800

    SHA512

    f7fd3a800d5a60f4b4e9c1e3fec33d5ee16cd8833c014c8ec3570a535064e6160e88c809a599d4bd7f081b7be3c4a9737aafcb8b86e8b374903d496fcf46ee0b

  • /data/data/com.chxdsjsbz.dnykbpzhs/no_backup/androidx.work.workdb

    Filesize

    4KB

    MD5

    f2b4b0190b9f384ca885f0c8c9b14700

    SHA1

    934ff2646757b5b6e7f20f6a0aa76c7f995d9361

    SHA256

    0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

    SHA512

    ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

  • /data/data/com.chxdsjsbz.dnykbpzhs/no_backup/androidx.work.workdb-journal

    Filesize

    512B

    MD5

    44bc3f3d614f56d13efce4c230915aa1

    SHA1

    a7d30ebd7afb6e36ae3c49efce547292de924fca

    SHA256

    740c4af293d52e36709a4b2f146cdb8b2e9fcafedd195b2cc74b6ec7619d52dc

    SHA512

    cb1e55ba547c61990e2ab992394e24f8f801cc6ee9f5c8be09b2d831fb20005e627c54e48b7ba594465104255011fe3d5bc759723c077d840c0381c224200790

  • /data/data/com.chxdsjsbz.dnykbpzhs/no_backup/androidx.work.workdb-shm

    Filesize

    32KB

    MD5

    bb7df04e1b0a2570657527a7e108ae23

    SHA1

    5188431849b4613152fd7bdba6a3ff0a4fd6424b

    SHA256

    c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

    SHA512

    768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

  • /data/data/com.chxdsjsbz.dnykbpzhs/no_backup/androidx.work.workdb-wal

    Filesize

    108KB

    MD5

    9caed767887a1392fedec2ea6db1f4ff

    SHA1

    c69ca36ea89ea024a87d84fa3b3483630cfa92c4

    SHA256

    842d43ebd5f303982b3c973e6929edfb1303357610efee227f9da72aa637c2a6

    SHA512

    05151e81db038007052907904cb0b88c74b2c3c036efb9b8fa86d40ec0a48c8680c7a386ee04ea995d1dfbcb427e916110632c9cc7a1ab1c561e6024df29137c

  • /data/data/com.chxdsjsbz.dnykbpzhs/no_backup/androidx.work.workdb-wal

    Filesize

    173KB

    MD5

    0c6b2697f261935049e46592fce2f40b

    SHA1

    e37792120978f457d868af987caff5fae13d68fb

    SHA256

    479c7d41f230ea8817bac92ec4c8a2adbed2d541483ae7b070d3f1ee754cdc6d

    SHA512

    e3c429c9f12e240128d04d6ab598b45c767f9cb2fe9597c058377d600dae7e5584beb083cffb3a4d94837281ab935092c8419362f9bd3b56243756b17b52c449

  • /data/data/com.chxdsjsbz.dnykbpzhs/no_backup/androidx.work.workdb-wal

    Filesize

    16KB

    MD5

    39062f255ac1c10555ba1fe922cce8e0

    SHA1

    77154a1e8fc4a7dbfb91e0e9ac81370fd30810ac

    SHA256

    c5854ed59c032bea8e904a2762a15160e1b463a85f80a5d8f9e4e7356f6bd75e

    SHA512

    f0e8ba89a8ffb5cd6ad9932f65c97a37bdcf7ef847adbeb817c16fd8eb5e7b4d9d5f1382c8df52ec511bab2fa56bd5409e36cd72bfc9a66df0ee763a0c6f070a

  • /data/user/0/com.chxdsjsbz.dnykbpzhs/app_dex/classes.dex

    Filesize

    2.9MB

    MD5

    b0b9c8dc440cb2f472132c6512651b85

    SHA1

    f0059a26522dde3660040ce0944912e75ad1182e

    SHA256

    610a49a6828231e1618349ac7c4445b4779434b4e55e301915a285d20b5614a1

    SHA512

    fe7226011e61ca9af7e05026c82ae700daf55791576bb4f93db5d5719711f30f336a7f884bb071fd1ec59d277c756fa663d9ee6a36428b00fe04f53653f13522