Overview

overview

10

Static

static

6

rex.apk

android-9-x86

10

rex.apk

android-10-x64

10

rex.apk

android-11-x64

10

Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    android-11_x64
  • resource
    android-x64-arm64-20240910-en
  • resource tags

    arch:armarch:arm64arch:x64arch:x86image:android-x64-arm64-20240910-enlocale:en-usos:android-11-x64system
  • submitted
    02/04/2025, 07:24

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    rex.apk

  • Size

    7.6MB

  • MD5

    fb6fc51d6bb67bbebe5989108861dc23

  • SHA1

    cd0a160c0d9cd53c3ab769c7fa10d8db06e3a9ca

  • SHA256

    7053eadb7b67816260beab679d7d1f9895086f160f8e1d01a1fe1df73f41518d

  • SHA512

    0bf27a30f11f1986f9ed45a6098ba12d57ca289c8a48cf9571ea01afc7a44279142d3cc2f9d818e0e2b31171f65388105f79f26d762d45969df99cc30068233d

  • SSDEEP

    196608:AcaiXcKqcEcdEppfcVcgA0TIrsE+5zFKKpEC6iOcMdsd:haisI9d0UqgA0krs7T9/d

Score
10/10
copybarabankercollectioncredential_accessdefense_evasionevasionimpactinfostealerpersistencetrojan

Malware Config

Signatures

  • Copybara

    Copybara is an Android banking trojan first seen in November 2021.

    bankertrojaninfostealercopybara
  • Copybara family
    copybara
  • Copybara payload 1 IoCs
  • Loads dropped Dex/Jar 1 TTPs 2 IoCs

    Runs executable file dropped to the device during analysis.

    evasion
  • Makes use of the framework's Accessibility service 4 TTPs 2 IoCs

    Retrieves information displayed on the phone screen using AccessibilityService.

    collectiondefense_evasioncredential_access
  • Obtains sensitive information copied to the device clipboard 2 TTPs 1 IoCs

    Application may abuse the framework's APIs to obtain sensitive information copied to the device clipboard.

    collectioncredential_accessimpact
  • 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 4 IoCs

    Application may abuse the accessibility service to prevent their removal.

    evasion
  • Requests disabling of battery optimizations (often used to enable hiding in the background). 1 TTPs 1 IoCs
    defense_evasion
  • Checks CPU information 2 TTPs 1 IoCs
  • Checks memory information 2 TTPs 1 IoCs

Processes

  • com.tencent.mm
    1⤵
    • Loads dropped Dex/Jar
    • Makes use of the framework's Accessibility service
    • Obtains sensitive information copied to the device clipboard
    • Acquires the wake lock
    • Makes use of the framework's foreground persistence service
    • Performs UI accessibility actions on behalf of the user
    • Requests disabling of battery optimizations (often used to enable hiding in the background).
    • Checks CPU information
    • Checks memory information
    PID:4733

Network

MITRE ATT&CK Mobile v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • /data/user/0/com.tencent.mm/app_mph_dex/apk.crazy-v1.AndroidManifest.xml
    Filesize

    9.0MB

    MD5

    e749ea3b2deac728d2b2781ee0ae2a53

    SHA1

    d053c42e6be484c7ca1ef5bc18bcf3ea2492a305

    SHA256

    9d5d7fbeb153f61245f72a755083e7bd75ce6bd024b418946dbcd54cb99bb612

    SHA512

    747b7fcdd64140ce902b74771bde156edec71a787007f9cf53323bb6b63ec7f8471272ca433ae4c5305e1e6268419c7203de8c6bfaaf258d756af9d20bb91631

    Download Submit

  • /data/user/0/com.tencent.mm/files/db.db
    Filesize

    12KB

    MD5

    256df4f1f534234b1d510cd7ccd71dab

    SHA1

    b7d93f7875c80eb6d55ca84ed3def780b6a84759

    SHA256

    8aad7daf3faa9bce66f44dabe11613afeb8731704e93112d890573b9d909d5e3

    SHA512

    3768be2a2f53ce428473f1d92c55342240994ad92fe6af315ba9322239a267fc059c7f0dd8f156c395dcfa5841c257c5158c7fabd28b6ef342fcc2e01b709ffc

    Download Submit

  • /data/user/0/com.tencent.mm/files/loading.gif
    Filesize

    121KB

    MD5

    7b38720a0352dffa26411726c72dd2b0

    SHA1

    b15e687f42abcdc12427f146a3115ef2259211f8

    SHA256

    2013f490d45638cada331b3474ed65b9a43cec60da773accc98332e58c06336d

    SHA512

    0df28f87da4f9beb3ca8c108f54021a2a1a1434771abbb5ba67a2736097f2287b05e5220a33e92c42ee13ecae1144714a422b986763712794f69e65bc44c83e3

    Download Submit

  • /data/user/0/com.tencent.mm/files/txtscreensize.txt
    Filesize

    11B

    MD5

    1b65c10c6215685f9d621d797f911373

    SHA1

    cc50aaed5cd521a62ec8cf9fe0413153ec90f265

    SHA256

    2230c2b2787663a054c47450ecd1718f0296853ad768b8e5d306ecb912685e89

    SHA512

    5a9139f295dbe384b1584eff5c11f3f86759232f7b661b75f27fe92b996b4cdc0552e315f79b26f5f2c1f91756d9ae04cf0c3675b6172e91a3d373b9b314496f

    Download Submit