Resubmissions

07-11-2022 15:28

221107-swmrlsgadl 10

27-04-2022 09:17

220427-k816rseadp 8

General

  • Target

    easy.apk

  • Size

    4.5MB

  • Sample

    221107-swmrlsgadl

  • MD5

    2cb58ccb6461e4fe22bb22c0a5f78f9e

  • SHA1

    c3b7edb3536045d3b81ad53c10405f04cf63bb3b

  • SHA256

    67ea3d38bed6ccdaeb3d929edd5afed9b1563d284a291f96e5bfa1c440e1a6dc

  • SHA512

    7245bebb6d9ef67469c6e7ece51f7fd8c74642cf2be7dd3a6519fc1c2ac7d196628db6f773ab939cb4386c180546dfdf5be930e0a8e3981d066a62b25768a913

  • SSDEEP

    98304:X9Aa3ecc0RLn60fR/1pL2LtrTCqcXuJt+jMWdJQ:XCOx2tc5MWdJQ

Malware Config

Extracted

Family

ermac

C2

http://194.26.29.28:3434

AES_key
AES_key

Targets

    • Target

      easy.apk

    • Size

      4.5MB

    • MD5

      2cb58ccb6461e4fe22bb22c0a5f78f9e

    • SHA1

      c3b7edb3536045d3b81ad53c10405f04cf63bb3b

    • SHA256

      67ea3d38bed6ccdaeb3d929edd5afed9b1563d284a291f96e5bfa1c440e1a6dc

    • SHA512

      7245bebb6d9ef67469c6e7ece51f7fd8c74642cf2be7dd3a6519fc1c2ac7d196628db6f773ab939cb4386c180546dfdf5be930e0a8e3981d066a62b25768a913

    • SSDEEP

      98304:X9Aa3ecc0RLn60fR/1pL2LtrTCqcXuJt+jMWdJQ:XCOx2tc5MWdJQ

    • Ermac

      An Android banking trojan first seen in July 2021.

    • Ermac2 payload

    • Makes use of the framework's Accessibility service.

    • Removes its main activity from the application launcher

    • Acquires the wake lock.

    • Loads dropped Dex/Jar

      Runs executable file dropped to the device during analysis.

    • Queries the unique device ID (IMEI, MEID, IMSI).

    • Reads information about phone network operator.

    • Requests disabling of battery optimizations (often used to enable hiding in the background).

    • Removes a system notification.

    • Uses Crypto APIs (Might try to encrypt user data).

MITRE ATT&CK Matrix

Tasks