Analysis

  • max time kernel
    103s
  • max time network
    103s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 10:34

General

  • Target

    Sverka maj.exe

  • Size

    187KB

  • MD5

    9c36d806f114ad981ed65f3763e04131

  • SHA1

    8b546cede088ececf790ac1cafb02cf5a0366c8e

  • SHA256

    489f3a394942157dbc0ed01c09989288c1a87a2d7b80a6382a4338094b35d710

  • SHA512

    7fb6bb68f45f5fe39ff61c7cd445c71039ddb1260c1a25fe61059ecb03f99f41db2ffd1a273f250168d5c592d2aa6d0fb1bc09a2293057dd5dbbfa6fd4712fe3

Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Script User-Agent 2 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Sverka maj.exe
    "C:\Users\Admin\AppData\Local\Temp\Sverka maj.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1668
    • C:\Users\Admin\AppData\Local\Temp\Sverka maj.exe
      "C:\Users\Admin\AppData\Local\Temp\Sverka maj.exe" dfsr
      2⤵
      • Modifies system certificate store
      • Suspicious use of WriteProcessMemory
      PID:1948
      • C:\Windows\system32\cmd.exe
        cmd.exe /c ping 127.0.0.1 & del /F /Q "C:\Users\Admin\AppData\Local\Temp\Sverka maj.exe"
        3⤵
        • Deletes itself
        • Suspicious use of WriteProcessMemory
        PID:1180
        • C:\Windows\system32\PING.EXE
          ping 127.0.0.1
          4⤵
          • Runs ping.exe
          PID:1104

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Remote System Discovery

1
T1018

Collection

Data from Local System

1
T1005

Replay Monitor

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Downloads

  • memory/1104-60-0x0000000000000000-mapping.dmp
  • memory/1180-59-0x0000000000000000-mapping.dmp
  • memory/1668-55-0x00000000002A0000-0x00000000002AE000-memory.dmp
    Filesize

    56KB

  • memory/1668-56-0x0000000000400000-0x0000000000431000-memory.dmp
    Filesize

    196KB

  • memory/1948-54-0x0000000000000000-mapping.dmp
  • memory/1948-57-0x0000000075BA1000-0x0000000075BA3000-memory.dmp
    Filesize

    8KB

  • memory/1948-58-0x0000000000400000-0x0000000000431000-memory.dmp
    Filesize

    196KB