Analysis

  • max time kernel
    140s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    10-04-2024 00:26

General

  • Target

    fa5bfc3e9fd2f3341efc890e7b4ff7018b6dd089e9482826db37578ac30bc92d.dll

  • Size

    251KB

  • MD5

    3802057e68e3e8ffa68a756e205339c8

  • SHA1

    da1f4070ec457092beae73ddbe971e4c932d5d9b

  • SHA256

    fa5bfc3e9fd2f3341efc890e7b4ff7018b6dd089e9482826db37578ac30bc92d

  • SHA512

    611d935397415156b2eb67eb7d2937cd1f11c561f3920f06d4fd1f495ca4dcd6b28bee52d0c38d415e9003f012677c8180683211dfebb82af66df7cb150d26cc

  • SSDEEP

    6144:Qrp5Ke4yhvvldbGpxMgnPOn7ksWL8HE+dwViPn4ZhlL29qWi+t5s0:Qrp5KenUrYF6nc+hl690+tZ

Malware Config

Extracted

Family

emotet

Botnet

Epoch3

C2

113.161.176.235:80

88.247.30.64:80

89.163.210.141:8080

139.162.10.249:8080

203.157.152.9:7080

109.99.146.210:8080

78.90.78.210:80

172.193.14.201:80

157.7.164.178:8081

189.211.214.19:443

157.245.145.87:443

180.148.4.130:8080

46.32.229.152:8080

24.245.65.66:80

82.78.179.117:443

177.130.51.198:80

121.117.147.153:443

203.160.167.243:80

172.104.46.84:8080

202.29.237.113:8080

rsa_pubkey.plain

Signatures

  • Emotet

    Emotet is a trojan that is primarily spread through spam emails.

  • UPX dump on OEP (original entry point) 5 IoCs
  • Blocklisted process makes network request 6 IoCs
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\fa5bfc3e9fd2f3341efc890e7b4ff7018b6dd089e9482826db37578ac30bc92d.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2952
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\fa5bfc3e9fd2f3341efc890e7b4ff7018b6dd089e9482826db37578ac30bc92d.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Suspicious behavior: EnumeratesProcesses
      PID:2044

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2044-0-0x0000000010000000-0x0000000010074000-memory.dmp

    Filesize

    464KB

  • memory/2044-1-0x00000000004A0000-0x00000000004C2000-memory.dmp

    Filesize

    136KB

  • memory/2044-5-0x0000000010000000-0x0000000010074000-memory.dmp

    Filesize

    464KB

  • memory/2044-6-0x0000000010000000-0x0000000010074000-memory.dmp

    Filesize

    464KB

  • memory/2044-12-0x0000000010000000-0x0000000010074000-memory.dmp

    Filesize

    464KB

  • memory/2044-13-0x0000000010000000-0x0000000010074000-memory.dmp

    Filesize

    464KB