Analysis

  • max time kernel
    145s
  • max time network
    178s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    21-07-2021 13:37

General

  • Target

    triage_dropped_file.dll

  • Size

    596KB

  • MD5

    917e3c54104affcbe521e23e85517bb0

  • SHA1

    1bffd59bd2618f7ef810c02e9ddbc2011949e251

  • SHA256

    d06c5ec5cefe2c6b80bf532cae9c270f2e25f0f2c5e6b05cffa36fe8a17dac3c

  • SHA512

    40e769e1f1c9d2531485fa9ac0e55d8c7b04486f32884d636ea0f08c26f702232be8ba11d6299722a3117b7bb08344c63a3bb375f7ef74b030663ca3bd411a0e

Malware Config

Extracted

Family

trickbot

Version

100018

Botnet

rob109

C2

38.110.103.124:443

185.56.76.28:443

204.138.26.60:443

60.51.47.65:443

74.85.157.139:443

68.69.26.182:443

38.110.103.136:443

38.110.103.18:443

138.34.28.219:443

185.56.76.94:443

217.115.240.248:443

24.162.214.166:443

80.15.2.105:443

154.58.23.192:443

38.110.100.104:443

45.36.99.184:443

185.56.76.108:443

185.56.76.72:443

138.34.28.35:443

97.83.40.67:443

Attributes
  • autorun
    Name:pwgrabb
    Name:pwgrabc
ecc_pubkey.base64

Signatures

  • Trickbot

    Developed in 2016, TrickBot is one of the more recent banking Trojans.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1308
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1548
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe
        3⤵
          PID:1332
        • C:\Windows\system32\wermgr.exe
          C:\Windows\system32\wermgr.exe
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1976

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1548-60-0x0000000000000000-mapping.dmp
    • memory/1548-61-0x0000000076281000-0x0000000076283000-memory.dmp
      Filesize

      8KB

    • memory/1548-65-0x00000000003D0000-0x0000000000409000-memory.dmp
      Filesize

      228KB

    • memory/1548-67-0x0000000000410000-0x0000000000447000-memory.dmp
      Filesize

      220KB

    • memory/1548-62-0x0000000000250000-0x000000000028B000-memory.dmp
      Filesize

      236KB

    • memory/1548-70-0x0000000000490000-0x00000000004D4000-memory.dmp
      Filesize

      272KB

    • memory/1548-72-0x0000000000221000-0x0000000000223000-memory.dmp
      Filesize

      8KB

    • memory/1548-71-0x0000000000390000-0x0000000000391000-memory.dmp
      Filesize

      4KB

    • memory/1548-69-0x00000000001D0000-0x0000000000208000-memory.dmp
      Filesize

      224KB

    • memory/1976-73-0x0000000000000000-mapping.dmp
    • memory/1976-74-0x0000000000060000-0x0000000000088000-memory.dmp
      Filesize

      160KB

    • memory/1976-75-0x0000000000110000-0x0000000000111000-memory.dmp
      Filesize

      4KB