Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    11-05-2021 12:24

General

  • Target

    Swift Copy.pdf.exe

  • Size

    889KB

  • MD5

    dd2eb46743bf230998439673e3deba99

  • SHA1

    4871d34e0db77e32f627e74b92e9a9fbdef7a21a

  • SHA256

    ab417e35533138c082445ac1997401837c2be3af4527860f3b5c30dcabd325cb

  • SHA512

    9ddf626833dc5551ad869214590c23b11e8ca16bc37959608c960f283bfef027b451a8f7fabff9d0678d24cabf2de12a509c8a75e524643cf29faf2a1d275b33

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.saudimedlabexpo.com
  • Port:
    587
  • Username:
    info@saudimedlabexpo.com
  • Password:
    ]dTqP-]^T]Pt

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • AgentTesla Payload 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Swift Copy.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Swift Copy.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1456
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Swift Copy.pdf.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1548
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DXGWcUXNvU.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2540
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DXGWcUXNvU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp510A.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1872
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DXGWcUXNvU.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2524
    • C:\Users\Admin\AppData\Local\Temp\Swift Copy.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Swift Copy.pdf.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1968

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
    MD5

    1c19c16e21c97ed42d5beabc93391fc5

    SHA1

    8ad83f8e0b3acf8dfbbf87931e41f0d664c4df68

    SHA256

    1bcd97396c83babfe6c5068ba590d7a3f8b70e72955a9d1e4070648e404cbf05

    SHA512

    7d18776d8f649b3d29c182ff03efc6cea8b527542ee55304980f24577aae8b64e37044407776e220984346c3998ace5f8853afa58c8b38407482a728e9495e0c

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
    MD5

    479707254a5b32c3e17e756b3d1373ca

    SHA1

    8d1d540058c936745c04c2fc1df03875e19336cd

    SHA256

    323956ccfa9438663d00caddbeda5fcf8ca7e2803db01f51dfec607ff9b1f11b

    SHA512

    00853fff7b16363b74f39af46a319fb88f071087568dc45d18e1e83fe9fd21341d8914dd24bda6ac54e23f1326ac4d131516c916437687c6ac4cd4ea5fac28cc

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
    MD5

    479707254a5b32c3e17e756b3d1373ca

    SHA1

    8d1d540058c936745c04c2fc1df03875e19336cd

    SHA256

    323956ccfa9438663d00caddbeda5fcf8ca7e2803db01f51dfec607ff9b1f11b

    SHA512

    00853fff7b16363b74f39af46a319fb88f071087568dc45d18e1e83fe9fd21341d8914dd24bda6ac54e23f1326ac4d131516c916437687c6ac4cd4ea5fac28cc

  • C:\Users\Admin\AppData\Local\Temp\tmp510A.tmp
    MD5

    9cdcc06e4e8aae4d7f8c61e1d7a6c37c

    SHA1

    10698f119f8d20fb9cace4da1e697a746c9d74c0

    SHA256

    f1e0248eac465e8a2f91b5d5136b15985816a4fed58d6e1463889170da126607

    SHA512

    7df84e8a1fc52f373915b705b4c2713d31b361118efbbf1457c29700a47ee560dd1b09e218d51dcd9c27f6f738c3287f5564e16adb1e0e0831df548bfa17b953

  • memory/1456-121-0x0000000005B60000-0x0000000005B61000-memory.dmp
    Filesize

    4KB

  • memory/1456-120-0x0000000005890000-0x0000000005891000-memory.dmp
    Filesize

    4KB

  • memory/1456-119-0x00000000059A0000-0x0000000005E9E000-memory.dmp
    Filesize

    5.0MB

  • memory/1456-122-0x0000000005B10000-0x0000000005B14000-memory.dmp
    Filesize

    16KB

  • memory/1456-123-0x00000000067A0000-0x0000000006868000-memory.dmp
    Filesize

    800KB

  • memory/1456-124-0x0000000008D30000-0x0000000008DC0000-memory.dmp
    Filesize

    576KB

  • memory/1456-118-0x00000000059A0000-0x00000000059A1000-memory.dmp
    Filesize

    4KB

  • memory/1456-117-0x0000000005EA0000-0x0000000005EA1000-memory.dmp
    Filesize

    4KB

  • memory/1456-116-0x0000000005900000-0x0000000005901000-memory.dmp
    Filesize

    4KB

  • memory/1456-114-0x0000000000FA0000-0x0000000000FA1000-memory.dmp
    Filesize

    4KB

  • memory/1548-144-0x00000000045E2000-0x00000000045E3000-memory.dmp
    Filesize

    4KB

  • memory/1548-192-0x000000007EE60000-0x000000007EE61000-memory.dmp
    Filesize

    4KB

  • memory/1548-125-0x0000000000000000-mapping.dmp
  • memory/1548-128-0x00000000045E0000-0x00000000045E1000-memory.dmp
    Filesize

    4KB

  • memory/1548-129-0x0000000004540000-0x0000000004541000-memory.dmp
    Filesize

    4KB

  • memory/1548-197-0x00000000045E3000-0x00000000045E4000-memory.dmp
    Filesize

    4KB

  • memory/1548-130-0x00000000071A0000-0x00000000071A1000-memory.dmp
    Filesize

    4KB

  • memory/1548-173-0x0000000008040000-0x0000000008041000-memory.dmp
    Filesize

    4KB

  • memory/1548-167-0x0000000007130000-0x0000000007131000-memory.dmp
    Filesize

    4KB

  • memory/1548-164-0x0000000007940000-0x0000000007941000-memory.dmp
    Filesize

    4KB

  • memory/1548-161-0x00000000078D0000-0x00000000078D1000-memory.dmp
    Filesize

    4KB

  • memory/1548-158-0x0000000007050000-0x0000000007051000-memory.dmp
    Filesize

    4KB

  • memory/1548-155-0x0000000006FB0000-0x0000000006FB1000-memory.dmp
    Filesize

    4KB

  • memory/1872-132-0x0000000000000000-mapping.dmp
  • memory/1968-146-0x0000000005090000-0x000000000558E000-memory.dmp
    Filesize

    5.0MB

  • memory/1968-139-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/1968-140-0x00000000004375BE-mapping.dmp
  • memory/2524-195-0x00000000069F3000-0x00000000069F4000-memory.dmp
    Filesize

    4KB

  • memory/2524-193-0x000000007EAF0000-0x000000007EAF1000-memory.dmp
    Filesize

    4KB

  • memory/2524-154-0x00000000069F2000-0x00000000069F3000-memory.dmp
    Filesize

    4KB

  • memory/2524-150-0x00000000069F0000-0x00000000069F1000-memory.dmp
    Filesize

    4KB

  • memory/2524-138-0x0000000000000000-mapping.dmp
  • memory/2540-170-0x0000000008270000-0x0000000008271000-memory.dmp
    Filesize

    4KB

  • memory/2540-148-0x0000000004A80000-0x0000000004A81000-memory.dmp
    Filesize

    4KB

  • memory/2540-194-0x000000007EB20000-0x000000007EB21000-memory.dmp
    Filesize

    4KB

  • memory/2540-196-0x0000000004A83000-0x0000000004A84000-memory.dmp
    Filesize

    4KB

  • memory/2540-152-0x0000000004A82000-0x0000000004A83000-memory.dmp
    Filesize

    4KB

  • memory/2540-131-0x0000000000000000-mapping.dmp