Analysis

  • max time kernel
    151s
  • max time network
    175s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    27-07-2021 14:37

General

  • Target

    ORDER -ASLF1SR00116-PDF.doc

  • Size

    1.9MB

  • MD5

    0c0b60565c79f37d0e1d15b3b2013fc4

  • SHA1

    efcb55212302d0711069bdca97897b45f739358a

  • SHA256

    555467cb88d23529540d6d644cbd1862cf04a728d783b0f908457c073d5d5316

  • SHA512

    62b4b6f704798d1b9b5ebd88d2ed26ff46c86d5cc4564aab75fad18a7ed226387b923026366a82fc2d4ce8fd8d5fb82332ed4a6f85ccba351d669ea8d2fcacfa

Malware Config

Extracted

Family

xloader

Version

2.3

C2

http://www.yummylipz.net/b8eu/

Decoy

ppslide.com

savorysinsation.com

camilaediego2021.com

rstrunk.net

xianshikanxiyang.club

1borefruit.com

ay-danil.club

xamangxcoax.club

waltonunderwood.com

laurabissell.com

laurawmorrow.com

albamauto.net

usamlb.com

theoyays.com

freeitproject.com

jijiservice.com

ukcarpetclean.com

wc399.com

xn--pskrtmebeton-dlbc.online

exclusivemerchantsolutions.com

Signatures

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • suricata: ET MALWARE EXE Download Request To Wordpress Folder Likely Malicious
  • suricata: ET MALWARE FormBook CnC Checkin (GET)
  • Xloader Payload 3 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 5 IoCs
  • Obfuscated with Agile.Net obfuscator 1 IoCs

    Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Windows directory 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Modifies Internet Explorer settings 1 TTPs 9 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 23 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1212
    • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
      "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\ORDER -ASLF1SR00116-PDF.doc"
      2⤵
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1240
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:1484
      • C:\Windows\SysWOW64\help.exe
        "C:\Windows\SysWOW64\help.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1172
        • C:\Windows\SysWOW64\cmd.exe
          /c del "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
          3⤵
            PID:1284
      • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
        "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
        1⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        • Launches Equation Editor
        • Suspicious use of WriteProcessMemory
        PID:1172
        • C:\Users\Admin\AppData\Roaming\name.exe
          "C:\Users\Admin\AppData\Roaming\name.exe"
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • Modifies system certificate store
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2012
          • C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
            "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
            3⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of AdjustPrivilegeToken
            PID:2004

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Execution

      Exploitation for Client Execution

      1
      T1203

      Defense Evasion

      Modify Registry

      2
      T1112

      Install Root Certificate

      1
      T1130

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
        MD5

        6a673bfc3b67ae9782cb31af2f234c68

        SHA1

        7544e89566d91e84e3cd437b9a073e5f6b56566e

        SHA256

        978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

        SHA512

        72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

      • C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
        MD5

        6a673bfc3b67ae9782cb31af2f234c68

        SHA1

        7544e89566d91e84e3cd437b9a073e5f6b56566e

        SHA256

        978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

        SHA512

        72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

      • C:\Users\Admin\AppData\Roaming\name.exe
        MD5

        e8af1892a757aa0f0693ce9677e69328

        SHA1

        f79c8d60ac27830351d257f2dbe00a72ea7b889c

        SHA256

        1ea32ffb0d84a4c157e12e6a3bd153a3cf3bb878ec2ef474fb547ee6fc7e9cc4

        SHA512

        f6f8bf083a5f04c450aa574b803d20eefe5dd1dc423b6ad502a7b7926967f0bd5e79424ce3876018bfb8ef04e0eb801ce6415c3156cccd9c15a5a678bd305ae1

      • C:\Users\Admin\AppData\Roaming\name.exe
        MD5

        e8af1892a757aa0f0693ce9677e69328

        SHA1

        f79c8d60ac27830351d257f2dbe00a72ea7b889c

        SHA256

        1ea32ffb0d84a4c157e12e6a3bd153a3cf3bb878ec2ef474fb547ee6fc7e9cc4

        SHA512

        f6f8bf083a5f04c450aa574b803d20eefe5dd1dc423b6ad502a7b7926967f0bd5e79424ce3876018bfb8ef04e0eb801ce6415c3156cccd9c15a5a678bd305ae1

      • \Users\Admin\AppData\Local\Temp\AddInProcess32.exe
        MD5

        6a673bfc3b67ae9782cb31af2f234c68

        SHA1

        7544e89566d91e84e3cd437b9a073e5f6b56566e

        SHA256

        978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

        SHA512

        72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

      • \Users\Admin\AppData\Roaming\name.exe
        MD5

        e8af1892a757aa0f0693ce9677e69328

        SHA1

        f79c8d60ac27830351d257f2dbe00a72ea7b889c

        SHA256

        1ea32ffb0d84a4c157e12e6a3bd153a3cf3bb878ec2ef474fb547ee6fc7e9cc4

        SHA512

        f6f8bf083a5f04c450aa574b803d20eefe5dd1dc423b6ad502a7b7926967f0bd5e79424ce3876018bfb8ef04e0eb801ce6415c3156cccd9c15a5a678bd305ae1

      • \Users\Admin\AppData\Roaming\name.exe
        MD5

        e8af1892a757aa0f0693ce9677e69328

        SHA1

        f79c8d60ac27830351d257f2dbe00a72ea7b889c

        SHA256

        1ea32ffb0d84a4c157e12e6a3bd153a3cf3bb878ec2ef474fb547ee6fc7e9cc4

        SHA512

        f6f8bf083a5f04c450aa574b803d20eefe5dd1dc423b6ad502a7b7926967f0bd5e79424ce3876018bfb8ef04e0eb801ce6415c3156cccd9c15a5a678bd305ae1

      • \Users\Admin\AppData\Roaming\name.exe
        MD5

        e8af1892a757aa0f0693ce9677e69328

        SHA1

        f79c8d60ac27830351d257f2dbe00a72ea7b889c

        SHA256

        1ea32ffb0d84a4c157e12e6a3bd153a3cf3bb878ec2ef474fb547ee6fc7e9cc4

        SHA512

        f6f8bf083a5f04c450aa574b803d20eefe5dd1dc423b6ad502a7b7926967f0bd5e79424ce3876018bfb8ef04e0eb801ce6415c3156cccd9c15a5a678bd305ae1

      • \Users\Admin\AppData\Roaming\name.exe
        MD5

        e8af1892a757aa0f0693ce9677e69328

        SHA1

        f79c8d60ac27830351d257f2dbe00a72ea7b889c

        SHA256

        1ea32ffb0d84a4c157e12e6a3bd153a3cf3bb878ec2ef474fb547ee6fc7e9cc4

        SHA512

        f6f8bf083a5f04c450aa574b803d20eefe5dd1dc423b6ad502a7b7926967f0bd5e79424ce3876018bfb8ef04e0eb801ce6415c3156cccd9c15a5a678bd305ae1

      • memory/1172-96-0x00000000005E0000-0x000000000066F000-memory.dmp
        Filesize

        572KB

      • memory/1172-93-0x0000000000700000-0x0000000000706000-memory.dmp
        Filesize

        24KB

      • memory/1172-95-0x00000000009F0000-0x0000000000CF3000-memory.dmp
        Filesize

        3.0MB

      • memory/1172-94-0x00000000000C0000-0x00000000000E8000-memory.dmp
        Filesize

        160KB

      • memory/1172-90-0x0000000000000000-mapping.dmp
      • memory/1212-97-0x0000000005010000-0x000000000516F000-memory.dmp
        Filesize

        1.4MB

      • memory/1212-89-0x0000000004DF0000-0x0000000004EB1000-memory.dmp
        Filesize

        772KB

      • memory/1240-63-0x0000000074D91000-0x0000000074D93000-memory.dmp
        Filesize

        8KB

      • memory/1240-98-0x000000005FFF0000-0x0000000060000000-memory.dmp
        Filesize

        64KB

      • memory/1240-62-0x000000005FFF0000-0x0000000060000000-memory.dmp
        Filesize

        64KB

      • memory/1240-61-0x000000006FC01000-0x000000006FC03000-memory.dmp
        Filesize

        8KB

      • memory/1240-60-0x0000000072181000-0x0000000072184000-memory.dmp
        Filesize

        12KB

      • memory/1284-92-0x0000000000000000-mapping.dmp
      • memory/1484-79-0x000007FEFB681000-0x000007FEFB683000-memory.dmp
        Filesize

        8KB

      • memory/1484-78-0x0000000000000000-mapping.dmp
      • memory/2004-88-0x0000000000150000-0x0000000000160000-memory.dmp
        Filesize

        64KB

      • memory/2004-87-0x0000000000950000-0x0000000000C53000-memory.dmp
        Filesize

        3.0MB

      • memory/2004-86-0x0000000000080000-0x00000000000A8000-memory.dmp
        Filesize

        160KB

      • memory/2004-84-0x000000000041D030-mapping.dmp
      • memory/2012-81-0x0000000000B40000-0x0000000000B41000-memory.dmp
        Filesize

        4KB

      • memory/2012-80-0x0000000000B80000-0x0000000000B8B000-memory.dmp
        Filesize

        44KB

      • memory/2012-77-0x0000000004C91000-0x0000000004C92000-memory.dmp
        Filesize

        4KB

      • memory/2012-76-0x0000000000930000-0x0000000000951000-memory.dmp
        Filesize

        132KB

      • memory/2012-74-0x0000000004C90000-0x0000000004C91000-memory.dmp
        Filesize

        4KB

      • memory/2012-72-0x0000000000F30000-0x0000000000F31000-memory.dmp
        Filesize

        4KB

      • memory/2012-69-0x0000000000000000-mapping.dmp