Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-07-2024 10:18

General

  • Target

    38b784792a440ac402fcf7db2989d41e_JaffaCakes118.dll

  • Size

    617KB

  • MD5

    38b784792a440ac402fcf7db2989d41e

  • SHA1

    bd15078210f7352003d2efc0ecc02074670b1445

  • SHA256

    f0de045676fb781d8b8a85c98e3310be35b4d5142901ee63caf24b3bfe573c45

  • SHA512

    7cf647b5d5a519a50d35048bdda21b08a290b8dfccd1b910fb27e9faade433b3b76fa8c5bc038c7ed97f1f8b67887285aa5a484a2cb1acf1133ccf5695c28e14

  • SSDEEP

    12288:OYzchQVZnkmt/70MWugxPJZFpf0c1pHsbdJ8CA88fzsBsI3+Dc:B4KV5Hpt8bZHLU+CSfasO+

Malware Config

Extracted

Family

emotet

Botnet

Epoch1

C2

84.232.229.24:80

51.255.203.164:8080

217.160.169.110:8080

185.183.16.47:80

190.45.24.210:80

187.162.248.237:80

93.146.143.191:80

185.94.252.27:443

143.0.85.206:7080

80.15.100.37:80

85.105.239.184:443

94.176.234.118:443

62.84.75.50:80

137.74.106.111:7080

172.104.169.32:8080

46.105.114.137:8080

94.126.8.1:80

78.206.229.130:80

93.149.120.214:80

192.175.111.212:7080

rsa_pubkey.plain

Signatures

  • Emotet

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

  • Blocklisted process makes network request 6 IoCs
  • Loads dropped DLL 2 IoCs
  • Drops file in System32 directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\38b784792a440ac402fcf7db2989d41e_JaffaCakes118.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4156
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\38b784792a440ac402fcf7db2989d41e_JaffaCakes118.dll,#1
      2⤵
      • Drops file in System32 directory
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:4460
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Atwlksxrukeuss\nazymemzprgya.app",SmcPLSkH
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:3396
        • C:\Windows\SysWOW64\rundll32.exe
          C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Atwlksxrukeuss\nazymemzprgya.app",#1
          4⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          PID:1084

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\Atwlksxrukeuss\nazymemzprgya.app

    Filesize

    617KB

    MD5

    38b784792a440ac402fcf7db2989d41e

    SHA1

    bd15078210f7352003d2efc0ecc02074670b1445

    SHA256

    f0de045676fb781d8b8a85c98e3310be35b4d5142901ee63caf24b3bfe573c45

    SHA512

    7cf647b5d5a519a50d35048bdda21b08a290b8dfccd1b910fb27e9faade433b3b76fa8c5bc038c7ed97f1f8b67887285aa5a484a2cb1acf1133ccf5695c28e14

  • memory/1084-9-0x0000000000400000-0x000000000049E000-memory.dmp

    Filesize

    632KB

  • memory/1084-8-0x0000000000400000-0x000000000049E000-memory.dmp

    Filesize

    632KB

  • memory/1084-10-0x0000000000400000-0x000000000049E000-memory.dmp

    Filesize

    632KB

  • memory/1084-12-0x0000000000400000-0x000000000049E000-memory.dmp

    Filesize

    632KB

  • memory/3396-5-0x0000000000400000-0x000000000049E000-memory.dmp

    Filesize

    632KB

  • memory/4460-0-0x0000000002910000-0x0000000002937000-memory.dmp

    Filesize

    156KB

  • memory/4460-1-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/4460-3-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/4460-2-0x0000000000400000-0x000000000049E000-memory.dmp

    Filesize

    632KB