Analysis

  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows10_x64
  • resource
    win10-20220331-en
  • submitted
    01-04-2022 01:53

General

  • Target

    dcc6409e704780116523a3e6ca35edf1399b381568d26b6d0373d1d9e00be491.xlsm

  • Size

    46KB

  • MD5

    969869a41c8f52fc0853eaaba007be0f

  • SHA1

    7d1c58a56647a9f3ede204d60fa0e6813d1ad8d1

  • SHA256

    dcc6409e704780116523a3e6ca35edf1399b381568d26b6d0373d1d9e00be491

  • SHA512

    c4a1a7ff06d4b59ed39640ca213bc1640907b304b613e47b9fe3561cd7caf6acb4f0c9a0fe19c9bb79b86dcbcae51bebec1831c732396cb1294b2860bd387c86

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://eles-tech.com/css/KzMysMqFMs/

Extracted

Family

emotet

Botnet

Epoch4

C2

68.183.94.239:80

104.131.11.205:443

138.197.109.175:8080

187.84.80.182:443

79.143.187.147:443

216.158.226.206:443

167.99.115.35:8080

212.24.98.99:8080

1.234.21.73:7080

206.189.28.199:8080

158.69.222.101:443

164.68.99.3:8080

188.44.20.25:443

185.157.82.211:8080

134.122.66.193:8080

196.218.30.83:443

72.15.201.15:8080

5.9.116.246:8080

176.104.106.96:8080

153.126.146.25:7080

eck1.plain
ecs1.plain

Signatures

  • Emotet

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

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Downloads MZ/PE file
  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\dcc6409e704780116523a3e6ca35edf1399b381568d26b6d0373d1d9e00be491.xlsm"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1732
    • C:\Windows\SysWow64\regsvr32.exe
      C:\Windows\SysWow64\regsvr32.exe -s ..\xewn.dll
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:3284
      • C:\Windows\SysWOW64\regsvr32.exe
        C:\Windows\SysWOW64\regsvr32.exe /s "C:\Windows\SysWOW64\Hharlncaxcvkn\vnolekdcemeu.xkt"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:3516

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\xewn.dll

    Filesize

    848KB

    MD5

    c954c5afb5d3cf2242012a5030905487

    SHA1

    94f24d512a97be46bf287816f194ef4d5d04172e

    SHA256

    b55de3ddd8a9420a4ed594f06cfbabc39dd276c392e473d5240cc6d209358afc

    SHA512

    ef880f1a4590691e99ed387de47e5295a02288211a5302ccb7fcd906c8134fbb5f8aa322dfc79bf0f335f2c585b028aec67654cce0e855b86410f11ed5e000de

  • \Users\Admin\xewn.dll

    Filesize

    848KB

    MD5

    c954c5afb5d3cf2242012a5030905487

    SHA1

    94f24d512a97be46bf287816f194ef4d5d04172e

    SHA256

    b55de3ddd8a9420a4ed594f06cfbabc39dd276c392e473d5240cc6d209358afc

    SHA512

    ef880f1a4590691e99ed387de47e5295a02288211a5302ccb7fcd906c8134fbb5f8aa322dfc79bf0f335f2c585b028aec67654cce0e855b86410f11ed5e000de

  • memory/1732-116-0x00007FFD668E0000-0x00007FFD668F0000-memory.dmp

    Filesize

    64KB

  • memory/1732-117-0x00007FFD668E0000-0x00007FFD668F0000-memory.dmp

    Filesize

    64KB

  • memory/1732-118-0x00007FFD668E0000-0x00007FFD668F0000-memory.dmp

    Filesize

    64KB

  • memory/1732-119-0x00007FFD668E0000-0x00007FFD668F0000-memory.dmp

    Filesize

    64KB

  • memory/3516-279-0x0000000002650000-0x0000000002674000-memory.dmp

    Filesize

    144KB