Resubmissions

13-09-2023 20:47

230913-zk1mnahe68 10

13-09-2023 19:55

230913-ym9snsef2y 10

13-09-2023 19:49

230913-yjtbhshc66 3

Analysis

  • max time kernel
    117s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    13-09-2023 20:47

General

  • Target

    press to unblock document.vbs

  • Size

    89KB

  • MD5

    7559f0ff4f7e58ed031fe0b4438f4c57

  • SHA1

    e2225573a8877c057319e10029fd85b0a51375a8

  • SHA256

    73527befbcc1ec6716003fc875d578c40e3dfe619349ff288008bab33c90e5d2

  • SHA512

    252d0a52c3b7bca5ea56a14c7ad1e27967b03e3dccfc3b8d79b8e1c474ed625937719af314e74f62583c708b45b937091e8fae7f1e40e56bf261d0f839f94e4a

  • SSDEEP

    384:6/EHPbchpdLrwUkRI8K5mAX3E53EnoUyd4989GgFWfYyLxgaHxixxOD/n3FiSf+y:6/EKr9ka8yZrgGayLpbng5s6n96

Malware Config

Extracted

Family

emotet

Botnet

Epoch4

C2

213.239.212.5:443

129.232.188.93:443

103.43.75.120:443

197.242.150.244:8080

1.234.2.232:8080

110.232.117.186:8080

95.217.221.146:8080

159.89.202.34:443

159.65.88.10:8080

82.223.21.224:8080

169.57.156.166:8080

45.176.232.124:443

45.235.8.30:8080

173.212.193.249:8080

107.170.39.149:8080

119.59.103.152:8080

167.172.199.165:8080

91.207.28.33:8080

185.4.135.165:8080

104.168.155.143:8080

eck1.plain
ecs1.plain

Signatures

  • Emotet

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

  • Blocklisted process makes network request 11 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Script User-Agent 6 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\press to unblock document.vbs"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3068
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //E:vbscript C:\Users\Admin\AppData\Local\Temp\rad64496BD58darrad0EAC46856dar.txt
      2⤵
      • Blocklisted process makes network request
      • Modifies system certificate store
      • Suspicious use of WriteProcessMemory
      PID:2796
      • C:\Windows\System32\regsvr32.exe
        "C:\Windows\System32\regsvr32.exe" "C:\Users\Admin\AppData\Local\Temp\rad427DE03BDdar\I7BUGMOAp1mnW79z5M0bLi0WI5oFMy2wIqc.dll"
        3⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1568
        • C:\Windows\system32\regsvr32.exe
          C:\Windows\system32\regsvr32.exe "C:\Windows\system32\KXWrqgwJ\KspCVjttcFI.dll"
          4⤵
            PID:1812

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Defense Evasion

    Subvert Trust Controls

    1
    T1553

    Install Root Certificate

    1
    T1553.004

    Modify Registry

    1
    T1112

    Discovery

    System Information Discovery

    1
    T1082

    Query Registry

    1
    T1012

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
      Filesize

      344B

      MD5

      a87529a0dc10bfbcebcfda91aeb4de36

      SHA1

      7c485579694d5ad2111c8f88e7707994d27bd034

      SHA256

      a48234e7bddd303074a0d05816f0981d906ebe011589cb52fb387eaa6e6776da

      SHA512

      57523dc68f411776ec59dc8e51163fdd60ea2f2ec09828d9c4289c4327098ac3ac0a9d7a1db7cf28a1cc63dd0c715718051e79b183d3411bd8151565ea024795

    • C:\Users\Admin\AppData\Local\Temp\CabBD97.tmp
      Filesize

      61KB

      MD5

      f3441b8572aae8801c04f3060b550443

      SHA1

      4ef0a35436125d6821831ef36c28ffaf196cda15

      SHA256

      6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

      SHA512

      5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

    • C:\Users\Admin\AppData\Local\Temp\RAD053~1.ZIP
      Filesize

      958KB

      MD5

      cde1a4983674221e32035465ff72c577

      SHA1

      b25512e978cd4b0f700f655caff2923a4c77fdba

      SHA256

      b030f4ef75c8ef13e944f87ec7b700799b5f2906f4f3cb262c0fb1daa3b41865

      SHA512

      47fc2200061cbd576f324534ab61f67bb32518372fecd370f0bfaab114adc3bdf7cafccbc34f724c59f77ad2d046985ff049903692104ca58289c4ec4e978d26

    • C:\Users\Admin\AppData\Local\Temp\TarBE16.tmp
      Filesize

      163KB

      MD5

      9441737383d21192400eca82fda910ec

      SHA1

      725e0d606a4fc9ba44aa8ffde65bed15e65367e4

      SHA256

      bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

      SHA512

      7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

    • C:\Users\Admin\AppData\Local\Temp\rad427DE03BDdar\I7BUGMOAp1mnW79z5M0bLi0WI5oFMy2wIqc.dll
      Filesize

      518.9MB

      MD5

      8d4ae113a4228abb787118fa7f080f07

      SHA1

      06484d09a45370765db7eec6a2998551215806f2

      SHA256

      5418335875ee09905dc49a03b4b38dbfa70c5902ec022814d45ec028be3b2975

      SHA512

      0944be85227173360689b18cc6bc58b7cc7017bba6291ad1ea696ecbc95f9d829d2e43e545ae9ecbb62159145f2e589bf463e553e1341fbc2d98cacdb6dde116

    • C:\Users\Admin\AppData\Local\Temp\rad64496BD58darrad0EAC46856dar.txt
      Filesize

      61KB

      MD5

      958eb4fa0bfca295216cd6027977fcb8

      SHA1

      0bc88fb4229a73152b2c33750dd5b5be52fcf287

      SHA256

      9b32ca5d8a34ae2351bc68500fb6929468c42d0ddda53fba5676410beab6d498

      SHA512

      4e4e2d84ce82eaa222180e86a2feaa7fdb19108d227ca922c69d30e30ef1ed463c41d540c25f604edd04be86f8490ae8570d2b67a97e0f9f45d048954d32787f

    • \Users\Admin\AppData\Local\Temp\rad427DE03BDdar\I7BUGMOAp1mnW79z5M0bLi0WI5oFMy2wIqc.dll
      Filesize

      518.9MB

      MD5

      8d4ae113a4228abb787118fa7f080f07

      SHA1

      06484d09a45370765db7eec6a2998551215806f2

      SHA256

      5418335875ee09905dc49a03b4b38dbfa70c5902ec022814d45ec028be3b2975

      SHA512

      0944be85227173360689b18cc6bc58b7cc7017bba6291ad1ea696ecbc95f9d829d2e43e545ae9ecbb62159145f2e589bf463e553e1341fbc2d98cacdb6dde116

    • memory/1568-99-0x0000000001DE0000-0x0000000001E3A000-memory.dmp
      Filesize

      360KB

    • memory/1568-100-0x00000000001A0000-0x00000000001A1000-memory.dmp
      Filesize

      4KB

    • memory/1812-104-0x0000000000500000-0x0000000000501000-memory.dmp
      Filesize

      4KB