Analysis

  • max time kernel
    70s
  • max time network
    116s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    19-04-2023 10:21

General

  • Target

    f5a313c5353ae0d1cede7bd5e234bfd3a4d7abb5e877bd2903d8d7572e9ee4d6.xls

  • Size

    235KB

  • MD5

    2654fdca7197f542cbd0be823a2a2a9f

  • SHA1

    149b43a5f8f4d9bd63720b408f6c4e2a86401c6a

  • SHA256

    f5a313c5353ae0d1cede7bd5e234bfd3a4d7abb5e877bd2903d8d7572e9ee4d6

  • SHA512

    1534994b08b95c1a9879afba6a857817146b3aaa06484a65ff89f418b5ca31fa7ffbc2076efdface8f0036f5e3a7f98e95fe0120df3bfe2c2b06ea8e3b96bcaf

  • SSDEEP

    6144:cKpb8rGYrMPe3q7Q0XV5xtuEsi8/dgq9jWXcZZRBTq1BOzTwvOsPDslAvS32vI7p:09jVzTmszTwvTDy33LvfP1OWr

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://ohemaa.org/HUVm9mDKLW9C/ocrafhh.html

xlm40.dropper

https://madieandme.com.au/xnkpOLnvlN6T/ocrafh.html

xlm40.dropper

https://amerident.com.do/xdOMlaB0XJ7/ocraf.html

Signatures

  • Process spawned unexpected child process 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 21 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\f5a313c5353ae0d1cede7bd5e234bfd3a4d7abb5e877bd2903d8d7572e9ee4d6.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:1048
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" C:\Datop\test.test
      2⤵
      • Process spawned unexpected child process
      PID:1980
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" C:\Datop\test1.test
      2⤵
      • Process spawned unexpected child process
      PID:1988
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" C:\Datop\test2.test
      2⤵
      • Process spawned unexpected child process
      PID:1888

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

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

    61KB

    MD5

    e71c8443ae0bc2e282c73faead0a6dd3

    SHA1

    0c110c1b01e68edfacaeae64781a37b1995fa94b

    SHA256

    95b0a5acc5bf70d3abdfd091d0c9f9063aa4fde65bd34dbf16786082e1992e72

    SHA512

    b38458c7fa2825afb72794f374827403d5946b1132e136a0ce075dfd351277cf7d957c88dc8a1e4adc3bcae1fa8010dae3831e268e910d517691de24326391a6

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\D17FDD3AC73FCE90EBBB3DF8DEC5EE9D
    Filesize

    5B

    MD5

    5bfa51f3a417b98e7443eca90fc94703

    SHA1

    8c015d80b8a23f780bdd215dc842b0f5551f63bd

    SHA256

    bebe2853a3485d1c2e5c5be4249183e0ddaff9f87de71652371700a89d937128

    SHA512

    4cd03686254bb28754cbaa635ae1264723e2be80ce1dd0f78d1ab7aee72232f5b285f79e488e9c5c49ff343015bd07bb8433d6cee08ae3cea8c317303e3ac399

  • C:\Users\Admin\AppData\Local\Temp\Tar7F85.tmp
    Filesize

    161KB

    MD5

    be2bec6e8c5653136d3e72fe53c98aa3

    SHA1

    a8182d6db17c14671c3d5766c72e58d87c0810de

    SHA256

    1919aab2a820642490169bdc4e88bd1189e22f83e7498bf8ebdfb62ec7d843fd

    SHA512

    0d1424ccdf0d53faf3f4e13d534e12f22388648aa4c23edbc503801e3c96b7f73c7999b760b5bef4b5e9dd923dffe21a21889b1ce836dd428420bf0f4f5327ff

  • memory/1048-54-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1888-323-0x0000000000340000-0x0000000000341000-memory.dmp
    Filesize

    4KB

  • memory/1980-324-0x0000000000240000-0x0000000000241000-memory.dmp
    Filesize

    4KB

  • memory/1988-325-0x00000000001E0000-0x00000000001E1000-memory.dmp
    Filesize

    4KB