Analysis

  • max time kernel
    1302705s
  • max time network
    142s
  • platform
    android_x86
  • resource
    android-x86-arm-20230831-en
  • resource tags

    androidarch:armarch:x86image:android-x86-arm-20230831-enlocale:en-usos:android-9-x86system
  • submitted
    31-08-2023 22:01

General

  • Target

    023401cb52793c28925cd213f4c8ef48cef18b904cfcee01880cb219f8844cfc.apk

  • Size

    2.1MB

  • MD5

    f962f5880d51312dc97276cd17f35f63

  • SHA1

    e432cd2258dec9fd05470726e9648a7501839b3f

  • SHA256

    023401cb52793c28925cd213f4c8ef48cef18b904cfcee01880cb219f8844cfc

  • SHA512

    d146f9b8be9cad7e13730b4f70b7ed144b2bef7c783cd8728d73c5dfc7b09b64a3176f3e69bc4a3b6bad4aea558026d62f3deba6b6d88ab7192d22869020ef43

  • SSDEEP

    49152:Bn1jZ+H/ztKOsWzWg2aMy0J0801I/rfhLxxOaQRmDcl1dIpkJnR/59G:51kfztjsvN/hLPNQRiML9G

Malware Config

Extracted

Family

alienbot

C2

http://dijitalgirisbigi.net

rc4.plain

Extracted

Family

alienbot

C2

http://dijitalgirisbigi.net

Signatures

  • Alienbot

    Alienbot is a fork of Cerberus banker first seen in January 2020.

  • Cerberus

    An Android banker that is being rented to actors beginning in 2019.

  • Cerberus payload 2 IoCs
  • Makes use of the framework's Accessibility service. 2 IoCs
  • Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps). 1 IoCs
  • Removes its main activity from the application launcher 1 IoCs
  • Acquires the wake lock. 1 IoCs
  • Loads dropped Dex/Jar 2 IoCs

    Runs executable file dropped to the device during analysis.

  • Reads the content of SMS inbox messages. 1 IoCs
  • Reads the content of outgoing SMS messages. 2 IoCs
  • Reads information about phone network operator.
  • Requests disabling of battery optimizations (often used to enable hiding in the background). 1 IoCs
  • Removes a system notification. 1 IoCs

Processes

  • com.update.layer
    1⤵
    • Makes use of the framework's Accessibility service.
    • Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps).
    • Removes its main activity from the application launcher
    • Acquires the wake lock.
    • Loads dropped Dex/Jar
    • Reads the content of SMS inbox messages.
    • Reads the content of outgoing SMS messages.
    • Requests disabling of battery optimizations (often used to enable hiding in the background).
    • Removes a system notification.
    PID:4164
    • /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.update.layer/app_DynamicOptDex/OPr.json --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.update.layer/app_DynamicOptDex/oat/x86/OPr.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4195

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • /data/data/com.update.layer/app_DynamicOptDex/OPr.json

    Filesize

    238KB

    MD5

    68f3cd8b1a755b7d95db5d365f17be41

    SHA1

    e7fe149662d7abf0db23867bfb37614d13a5e46b

    SHA256

    df2ceee8c9d4d2c6a647124edd34be049d7d96c9214c804b5f199000e392ab4c

    SHA512

    644d3d6baf4e0a5bb83f353adbbf2d7ee642ccc6abad628d6e97ff5958b6e31991dbabf7d2521852d3d7a808945c0e3cdb17e368a16b190a3abbc4ef1e8de4f2

  • /data/data/com.update.layer/app_DynamicOptDex/OPr.json

    Filesize

    238KB

    MD5

    c109dd6eff0c0f53a5e5daccda39c6bd

    SHA1

    47808bf2b9fd7ddfeb3fc14ed1626ad98dc0c609

    SHA256

    2d5d2920efe76ba1ea12691ab8f02a7fba4bbeecf9d73df5592191de7d428d99

    SHA512

    f551c97248cc87804b733ea341b8bc86a4a146a347233a2d2efdd4901a70d45e6f7589acf14005c804f38107b52d8d11368ddcacf1d8155b4aab1cce677703e0

  • /data/data/com.update.layer/app_DynamicOptDex/oat/OPr.json.cur.prof

    Filesize

    489B

    MD5

    c7c5c33a790bbc690696daa46230826b

    SHA1

    256557bc055a06b5cc071786991369008f6de2a2

    SHA256

    18e913476057a5384a0cf6d1154d197d9758ad1274ec5631e1bdd46a6c1c9269

    SHA512

    7219be22e6355c93f50e6a6d35739c6dd713d075a1e4570035fbdf5cbb5c147025d7f2424e399273d53810607053082e6f49a9a1b5ee54dfc32e237bf6cd9a37

  • /data/data/com.update.layer/app_DynamicOptDex/oat/OPr.json.cur.prof

    Filesize

    566B

    MD5

    fafdd7bbc3be601eca37891e1c6511d2

    SHA1

    76e193f68dfa41895c386ab66a6da255dcf96fc2

    SHA256

    12f92e69ea51392207ec29c4e5ee1837e115c823d34babe59d4604c992aee025

    SHA512

    f46b14ff0426de1a176a234083efb96cded5fca312202dd74006f726b0af2c9a3fa11f3d12283d3afb484f17b95b9056d613a8a783c16523a1976f3a3422dfc1

  • /data/data/com.update.layer/app_apk/ring0.apk

    Filesize

    946KB

    MD5

    a73f108dc1b655252c7e45e5df04d4f6

    SHA1

    8459f380f7ef684e393c4408f7f4ee58c99147c4

    SHA256

    c34367f5395f513b8ee0dedcd5502aed69172e71004a80c1f896ca97e05f4f62

    SHA512

    8f84e47b367fb35a073a31cf41422edccbde99ee126cb37d2df0bddae5e8ca0f5df4d6221930548bfd216f583b2885485d764fd58f73d6a14b9a697b66c58dc4

  • /data/user/0/com.update.layer/app_DynamicOptDex/OPr.json

    Filesize

    483KB

    MD5

    b2937c219f63af4d51fc860cb4a82a85

    SHA1

    7c78c6c344fbfe45a34b85aee96cdd40581e3485

    SHA256

    bfbc4bc27b9e1b9747537f013c3781f66721086bfe24c9e3c5c817f469b5b710

    SHA512

    a1c8700fca781b17b603f5f5634564b6848c17ab7c2304f14ddf9fd666e6d884f0288003e7a923062549a5b6d7f3114593e5ade0221325584f9e329f7d3b1399

  • /data/user/0/com.update.layer/app_DynamicOptDex/OPr.json

    Filesize

    483KB

    MD5

    0cb0220dd8a1afab6c9d6edb350400b7

    SHA1

    3b82338663a83909b251293472b1c5b5dbdb3a67

    SHA256

    bac9a8616d99c9befb0594b99ab7b9c47074f2a4047f7c998b66fd00f38d0504

    SHA512

    78822ad33a457e5128181a411e6bb0ad9a9357d130205e58a1c39a122f3fa3aef9a91d0df446cc089bc70c2ad126797758bc19f910050c247a5b7265e63f0864