Analysis

  • max time kernel
    90s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    13-11-2024 10:08

General

  • Target

    62bf1c22cfff5676af918e964e59f5a49c9afc77bc166ac106087458e0bd932c.exe

  • Size

    2.8MB

  • MD5

    ffbf297cf07adacc64c1072b7fc45ad3

  • SHA1

    5e6fd2a7b3eb6128d2c6ca0caa8ec5e2f39e4cc3

  • SHA256

    62bf1c22cfff5676af918e964e59f5a49c9afc77bc166ac106087458e0bd932c

  • SHA512

    f4fe1b6bbe7557eb276896301fd0516bfc24cfc4284d1487691ef531e466a8ec272a83627ff8f774dbe3657ff0dfd69a0842982fa0868757a48c290c25aab9a9

  • SSDEEP

    49152:q2nABX4VY5eEUIag7UK5bfl9GJuFxBGDw9CJpMQ9pOgQ6NIpdcD4HV:q2ABXcY5eEU8HbvGJu4DwmzOgQZpdcDO

Score
8/10

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Deletes itself 1 IoCs
  • Drops startup file 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Delays execution with timeout.exe 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\62bf1c22cfff5676af918e964e59f5a49c9afc77bc166ac106087458e0bd932c.exe
    "C:\Users\Admin\AppData\Local\Temp\62bf1c22cfff5676af918e964e59f5a49c9afc77bc166ac106087458e0bd932c.exe"
    1⤵
    • Drops startup file
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2464
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\ACCApi'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2172
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /tn AccSys /tr "C:\Users\Admin\AppData\Roaming\ACCApi\apihost.exe" /st 10:13 /du 23:59 /sc daily /ri 1 /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2356
    • C:\Users\Admin\AppData\Roaming\ACCApi\apihost.exe
      "C:\Users\Admin\AppData\Roaming\ACCApi\apihost.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of AdjustPrivilegeToken
      PID:2768
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp8343.tmp.cmd""
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3000
      • C:\Windows\SysWOW64\timeout.exe
        timeout 6
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:1132

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp8343.tmp.cmd

    Filesize

    216B

    MD5

    7fd35d05957e51403baeb7b098cb602c

    SHA1

    a8220e6211354f4fa805b5882023db708345019c

    SHA256

    9c5e51df4d19fc3073ea331d6d4caf409d4111468c270e4203ef0c4fdebba17d

    SHA512

    2679d4efc6ef1f8f96f322daf92b14f45326c8e88dba55fd73b957fdeeb8318821149a4f7328c4c650bfeefa392dc41c2e7f9154fb667f3d8f30fbcfa75d4f80

  • \Users\Admin\AppData\Roaming\ACCApi\apihost.exe

    Filesize

    2.9MB

    MD5

    cf7849c4fe970b7d61cde5af01e67e4c

    SHA1

    cb86cdf88fd0717146e55259b117bab776709fd1

    SHA256

    8278df451373403db96a04c0147953a219a9770cd959c8ff2f8ce3e238aaba74

    SHA512

    effd5f14f95d3652880cb43dd0092926e4082e0432b0f1b4ba288d797423d8d6024d144b6ab2dce12c9ba684f4649803a8032bce26a7d432720aa82d3600e28c

  • memory/2464-0-0x00000000741FE000-0x00000000741FF000-memory.dmp

    Filesize

    4KB

  • memory/2464-1-0x00000000012B0000-0x00000000012D4000-memory.dmp

    Filesize

    144KB

  • memory/2768-22-0x00000000008E0000-0x0000000000904000-memory.dmp

    Filesize

    144KB