Analysis

  • max time kernel
    149s
  • max time network
    151s
  • 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
    11-12-2024 22:08

General

  • Target

    bd38add6771861c00bb20466545445b1c16ae7a8ad6de8a2e7e275b5f2460262.apk

  • Size

    3.0MB

  • MD5

    83b746dd4e5e458f8a3af71f738b6739

  • SHA1

    c71e8f4a27d434164d280aa5792937bb2013d7e6

  • SHA256

    bd38add6771861c00bb20466545445b1c16ae7a8ad6de8a2e7e275b5f2460262

  • SHA512

    f20c026be1b63c33851fbfdd4f94f1f77a41dd519d7241281011e28d89d0028c26cfabc834c3fba61d1e7dca5d24b52f35bbc844e26f61387eeba61a7b1d0051

  • SSDEEP

    49152:dJE3wCeZRzTmXFpZdM4W12mg9jLUs1TUHD0VCvYPrgQrzoHUbbnstFbsxJNfSHHp:dJSwC2qpw12TjYs1TSwf60Y87VVFU

Malware Config

Extracted

Family

ermac

C2

http://154.216.19.93

AES_key

Extracted

Family

hook

C2

http://154.216.19.93

AES_key

Signatures

  • Ermac

    An Android banking trojan first seen in July 2021.

  • Ermac family
  • Ermac2 payload 2 IoCs
  • Hook

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

  • Hook family
  • Loads dropped Dex/Jar 1 TTPs 2 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.xskjlrfapapkaraglzakasd.staretxjk
    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:4267
    • /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.xskjlrfapapkaraglzakasd.staretxjk/app_hospital/CDoJ.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.xskjlrfapapkaraglzakasd.staretxjk/app_hospital/oat/x86/CDoJ.odex --compiler-filter=quicken --class-loader-context=&
      2⤵
      • Loads dropped Dex/Jar
      PID:4292

Network

MITRE ATT&CK Mobile v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • /data/data/com.xskjlrfapapkaraglzakasd.staretxjk/app_hospital/CDoJ.json

    Filesize

    736KB

    MD5

    fe8ef5bf9b779b1678c7f99ee9ef1b0b

    SHA1

    fbce257123125c384e4796130f5a5c6fbee0cabf

    SHA256

    b6ebcc97b5a365d7408dc82969bbc6c53a5deb0a24629145fce9110ff2149bc5

    SHA512

    8d9f1b616e00b87edae8114c4c33c9ff82f1e99edef65ddf1d946174955fc6f50941d3a21be55ee4c33552241ab63c927a98c6ba77b6a6982cfd23fa4c1ee4f5

  • /data/data/com.xskjlrfapapkaraglzakasd.staretxjk/app_hospital/CDoJ.json

    Filesize

    736KB

    MD5

    79018d62665664ff1f37bc80edb74672

    SHA1

    8bb539c928cc56eb5baa0812048914588fac0576

    SHA256

    5edd4f6ba92e780072480b4062ccb546f4185b5d68c3b79214296e5a9eb1370e

    SHA512

    6c74cbc5c9a551ad23121fd81ff2bc0236bc64c9ab0f41a0302ac33c28468860272d4eeb28747765be9cb6dca9a26df1daabc52172f3c5166738c14364fa1a6f

  • /data/data/com.xskjlrfapapkaraglzakasd.staretxjk/app_hospital/oat/CDoJ.json.cur.prof

    Filesize

    3KB

    MD5

    4d6b61653c1115556165d2a37f8d8233

    SHA1

    6dcd4d043ab07800d9e82705eb0ad1ec02897e84

    SHA256

    a836c409e805d8056a34e724f5242928dd5f482cf1554029af2ec8103ae258ed

    SHA512

    f7cb226a7761940cc0491a17c20b7f612e8b78b09af9a08ac8748c7017de9252c2a9998eaeac7f283a83ca4e8a4fb4cdb5e890f736efe39fbc1fa5c473a23fca

  • /data/data/com.xskjlrfapapkaraglzakasd.staretxjk/no_backup/androidx.work.workdb

    Filesize

    4KB

    MD5

    f2b4b0190b9f384ca885f0c8c9b14700

    SHA1

    934ff2646757b5b6e7f20f6a0aa76c7f995d9361

    SHA256

    0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

    SHA512

    ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

  • /data/data/com.xskjlrfapapkaraglzakasd.staretxjk/no_backup/androidx.work.workdb-journal

    Filesize

    512B

    MD5

    3de971e2f27d19a9364dfd46f75ceaf9

    SHA1

    05edcc70f467802a99164c5508d8e0b2705160c1

    SHA256

    4b20db08d345e43ff6a2ff60b88e4a32cd461f2d09aca3e56c3ce6ac9cd4502e

    SHA512

    b67c1978bd41af9a2b633fc50d18a81e323e7f34fea3c53818821bf3774466bb83c801581debbcb3277275faa5738c3baae524273ed2acbe256c0fe3cc885509

  • /data/data/com.xskjlrfapapkaraglzakasd.staretxjk/no_backup/androidx.work.workdb-shm

    Filesize

    32KB

    MD5

    bb7df04e1b0a2570657527a7e108ae23

    SHA1

    5188431849b4613152fd7bdba6a3ff0a4fd6424b

    SHA256

    c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

    SHA512

    768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

  • /data/data/com.xskjlrfapapkaraglzakasd.staretxjk/no_backup/androidx.work.workdb-wal

    Filesize

    108KB

    MD5

    9d2a50470aad90f4446e2212ce1465be

    SHA1

    b9bf0b5f5a582f31c25a54b86efa66d7dbebef1a

    SHA256

    7a9459c705d7ab1a5b61d57c30805344fad37cc06d9a93cc642364de0c49e984

    SHA512

    7c8664703e3acf5331cbfa9da4e40f45b303e99d48f1edac469d29a00f22d1a215f26e9da47c640d7c8a85e01a5c186cffcecfcdd0490bc7578382293c87c2d1

  • /data/data/com.xskjlrfapapkaraglzakasd.staretxjk/no_backup/androidx.work.workdb-wal

    Filesize

    173KB

    MD5

    657df4a5e19b1c1cec64c01bae863951

    SHA1

    27b24ccfc3a0e67d3f12427938144b5a8925e8af

    SHA256

    a4bf8f18bf7d4a2d66c34dcf551435fe2ff7c8c1f4fa268bdc81b5c70c48b9cb

    SHA512

    25a92b8b99b228a9eb72e0f0b6b645fa5d3208600f1e3dc4d22e710c715d97349aa9e5f73105c5164b1a67466265221b57568d916961512e8f0dca3f22108ffa

  • /data/data/com.xskjlrfapapkaraglzakasd.staretxjk/no_backup/androidx.work.workdb-wal

    Filesize

    16KB

    MD5

    e87f9c60da9527b4f6587a9faa27999e

    SHA1

    7a2408f6feb2afc187e5fbd8cf7b804b309ded18

    SHA256

    1aa4e28652ef310842bbbfa18fbfb1d15084bd3f14cfc30bcbdf9146630e2461

    SHA512

    c0686880266a476b88ab175bbaeb94ba290096496a645c57dcb0cf86b6915561f557770ec6910e31c9b80ee9a5eecb94ec2ba386e1b581a365385e547e1d65b6

  • /data/user/0/com.xskjlrfapapkaraglzakasd.staretxjk/app_hospital/CDoJ.json

    Filesize

    1.7MB

    MD5

    d5af1f4c1e4fdc647f05ff82e81a0d63

    SHA1

    e2b3d20613170c37ed33d09075b85a77d6ca94a3

    SHA256

    dbf1787aecf19d4c08af8dd7fd631f1252fab194c25a4efd376a3dd6a715bd64

    SHA512

    f1450c99d9a1a547571d15f4498fdf8dc0a537af823718f61b8dd5cc10f2919819f8c0684845da1b134f7a9f8a263cf4a78afe095066e9acaa19724f19e878e1

  • /data/user/0/com.xskjlrfapapkaraglzakasd.staretxjk/app_hospital/CDoJ.json

    Filesize

    1.7MB

    MD5

    ffcaa9e688b50ccf1b005883919c9c74

    SHA1

    185fad91d59541ab6f803f597a6211e175bdf954

    SHA256

    d60b15bd863a547743f5862075f3bfc4faab3588775ccf345b40ac8f0f6ce767

    SHA512

    9666de529f3fe843c252c489662bac2f54270dcbc10705abcfd68f808e124f7fa58fcd7509f574df56420f5227c2d132dacf41ba1b4e8efe05373c4f21ff2299