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Analysis

  • max time kernel
    140s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    25/12/2023, 12:45

General

  • Target

    1f8187292660e4ab4a567f917ed5fee8.exe

  • Size

    5.5MB

  • MD5

    1f8187292660e4ab4a567f917ed5fee8

  • SHA1

    832442b51532bff1a93b62e8a64509d81ea58294

  • SHA256

    067454e4c56e421442cd036923c2a8b7f60f4f4ce59f4243160d36f959d1bff1

  • SHA512

    be84f01f27898e933be08e5cbe75a2cdf976f5dc99876bf67171fb9c94b25863e41a823aef89ca52c3d87694ca4eb065425b1312a64baea78ca70de673a76330

  • SSDEEP

    98304:gvSYro+waPiQjmjP028bc0TtJEJNx5DJXMWbD0nLWI9HJn6wz6+Ln7kr+qrRW6Ja:WpUwjmjc28Imk3jsymJn62t3UE6llYn

Score
8/10

Malware Config

Signatures

  • Modifies Installed Components in the registry 2 TTPs 9 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Script User-Agent 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1f8187292660e4ab4a567f917ed5fee8.exe
    "C:\Users\Admin\AppData\Local\Temp\1f8187292660e4ab4a567f917ed5fee8.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:356
    • C:\Users\Admin\AppData\Local\Temp\is-44CHU.tmp\1f8187292660e4ab4a567f917ed5fee8.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-44CHU.tmp\1f8187292660e4ab4a567f917ed5fee8.tmp" /SL5="$5014E,5495633,56832,C:\Users\Admin\AppData\Local\Temp\1f8187292660e4ab4a567f917ed5fee8.exe"
      2⤵
      • Modifies Installed Components in the registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of WriteProcessMemory
      PID:3024
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /C ""C:\Users\Admin\AppData\Local\Temp\is-EIFSI.tmp\ex.bat""
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2764
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell.exe -inputformat none -NoProfile -NoLogo -Command "& {$avlist = @(); $os = Get-WmiObject Win32_OperatingSystem; if ($os.ProductType -eq 3) {Write-Host \"ServerOS|0\";} elseif ($os.Version -like \"5.*\") {Get-WmiObject -Namespace root\SecurityCenter -Class AntiVirusProduct | ForEach-Object {Write-Host \"$($_.displayName)|$(if ($_.onAccessScanningEnabled) {\"4096\"} else {\"0\"})\"};} else {Get-WmiObject -Namespace root\SecurityCenter2 -Class AntiVirusProduct | ForEach-Object {$avlist += \"$($_.displayName)|$($_.productState)\"};Get-WmiObject -Namespace root\SecurityCenter2 -Class AntiSpywareProduct | ForEach-Object {$avlist += \"$($_.displayName)|$($_.productState)\"};} Write-Host ($avlist -join \"*\")}"
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2804

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\is-44CHU.tmp\1f8187292660e4ab4a567f917ed5fee8.tmp

    Filesize

    160KB

    MD5

    1b90baade036c74a61bf32bbbe2c5c2b

    SHA1

    b4e8019a5683821e6c9fefb7ccd989e40fa925e9

    SHA256

    3cf08cf0b3e3052186e1a6ba47b096d862117db9bb125541333734c63cc0ec9a

    SHA512

    ded9824dc59d3a026e6a522ffdcbcd7b85f6e0b9dc93c9d9a7c04d02d92ab8ea1568bf9df8029e50c38175b95944e7e9ada1e62c19f3969cf5793f35777d44dc

  • C:\Users\Admin\AppData\Local\Temp\is-EIFSI.tmp\ex.bat

    Filesize

    786B

    MD5

    59cd6d362574f68058171536b8679dc9

    SHA1

    775eb8b41a72f7b2caef6418468d366207ad8a04

    SHA256

    853bac6735a1abc969f6a427bf2f44b77e4cea8ce6ea18b29f526b1d89849a63

    SHA512

    1b8e8284521f1260fb4c690aee94fe0101984db9d2f81d9e07e8e25ab0771453516dcaa707b20cda88e94d9cc9261abbf3554a751a642cf9886b0ff328885505

  • \Users\Admin\AppData\Local\Temp\is-44CHU.tmp\1f8187292660e4ab4a567f917ed5fee8.tmp

    Filesize

    691KB

    MD5

    24c26b99dd41ade8904deac62dc652ec

    SHA1

    7f7128fb6858929d3634bc093770830c759b09c5

    SHA256

    e2877ee4bce324043f7635ae962110d7fc9dfe1af8eb75d352e83aaa55af3c06

    SHA512

    0cf836d10bc9012348fb3433b52b825e34ee04ed247c13337e35d2c6bba48667a85331c2dedffd6305b76b18c733d485d6d185158cd3fb77a53f8a0c7122c78d

  • \Users\Admin\AppData\Local\Temp\is-EIFSI.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-EIFSI.tmp\itdownload.dll

    Filesize

    200KB

    MD5

    d82a429efd885ca0f324dd92afb6b7b8

    SHA1

    86bbdaa15e6fc5c7779ac69c84e53c43c9eb20ea

    SHA256

    b258c4d7d2113dee2168ed7e35568c8e03341e24e3eafc7a22a0d62e32122ef3

    SHA512

    5bf0c3b8fa5db63205a263c4fa5337188173248bef609ba4d03508c50db1fd1e336f3041ce96d78cc97659357a83e6e422f5b079d893a20a683270e05f5438df

  • memory/356-2-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/356-31-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/356-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2804-24-0x0000000002AA0000-0x0000000002AE0000-memory.dmp

    Filesize

    256KB

  • memory/2804-23-0x0000000073790000-0x0000000073D3B000-memory.dmp

    Filesize

    5.7MB

  • memory/2804-25-0x0000000073790000-0x0000000073D3B000-memory.dmp

    Filesize

    5.7MB

  • memory/2804-27-0x0000000002AA0000-0x0000000002AE0000-memory.dmp

    Filesize

    256KB

  • memory/2804-26-0x0000000002AA0000-0x0000000002AE0000-memory.dmp

    Filesize

    256KB

  • memory/2804-28-0x0000000073790000-0x0000000073D3B000-memory.dmp

    Filesize

    5.7MB

  • memory/3024-17-0x0000000000650000-0x000000000068C000-memory.dmp

    Filesize

    240KB

  • memory/3024-33-0x0000000000650000-0x000000000068C000-memory.dmp

    Filesize

    240KB

  • memory/3024-32-0x0000000000400000-0x00000000004BC000-memory.dmp

    Filesize

    752KB

  • memory/3024-14-0x0000000000240000-0x0000000000241000-memory.dmp

    Filesize

    4KB

  • memory/3024-37-0x0000000000240000-0x0000000000241000-memory.dmp

    Filesize

    4KB