Analysis

  • max time kernel
    119s
  • max time network
    121s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    27-07-2021 08:46

General

  • Target

    AWD SHANGHAI SHIPMENT SCHEDULE.exe

  • Size

    760KB

  • MD5

    8bf9536b65dec39bbf0b8733e4ad2ac4

  • SHA1

    d7a8458e48bc1abddddaabf8e3ac6d35ef4e2c7a

  • SHA256

    d022b7b48419dbef83e9d084602cbb5b10566d193db01248a72be46251669a97

  • SHA512

    00fd52c6d21871f584fe67a8042f65479b06d4505ab84fc344f4cebefaae4928fff8c57ef0842d87750971a21b0174c4065b09d231b077b3278bc5290d2e0cb8

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.themainreport.co.nz
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    -I;MGhTyL{AQ

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 IoCs
  • CustAttr .NET packer 1 IoCs

    Detects CustAttr .NET packer in memory.

  • Downloads MZ/PE file
  • Executes dropped EXE 1 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 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\AWD SHANGHAI SHIPMENT SCHEDULE.exe
    "C:\Users\Admin\AppData\Local\Temp\AWD SHANGHAI SHIPMENT SCHEDULE.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2208
    • 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\AWD SHANGHAI SHIPMENT SCHEDULE.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3496
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\CLBTGpuxewYAR.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1256
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CLBTGpuxewYAR" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDAF4.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4076
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\CLBTGpuxewYAR.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:208
    • C:\Users\Admin\AppData\Local\Temp\AWD SHANGHAI SHIPMENT SCHEDULE.exe
      "C:\Users\Admin\AppData\Local\Temp\AWD SHANGHAI SHIPMENT SCHEDULE.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2100
      • C:\Users\Admin\AppData\Local\Temp\apwxc.exe
        "C:\Users\Admin\AppData\Local\Temp\apwxc.exe"
        3⤵
        • Executes dropped EXE
        PID:3212

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

    c28a24e6a60d6279482c2cefbad83033

    SHA1

    91897bb293450bf194b4886a8e21e8f72b723bb1

    SHA256

    88cf1b697d7fd11311d506fd1052a1da82574ea18dd73e465d2eabb3738c9adb

    SHA512

    11f604106142cf284a388e8d1fbb8cd57669e17e6bc5983829fbb68841a643fed764694f84b9cd817c28bf4b02d1a86950e9b98dc7d241eb4464d7318b61754b

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

    6e7573deb2f3899f603f5c51b14754da

    SHA1

    4242d3407a8f7b280a4ec1a1ce1b7b0e5fcb9905

    SHA256

    16f666922817a5fffcdc5c5f0711a95d823b406922a54812c112d4627de18cfc

    SHA512

    04cf032a6bce9a08e44c07c87583a04cd331edab40e3ef4463ac94332542bd30f93eaf86f521d795d5fed9f298bcb311a098006002fbd53a951772df58335471

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

    1a0478dca6c849c44cd2090bcadb27e8

    SHA1

    b2a41f874cf4ca7df084b193f421bd8628aac3e1

    SHA256

    50af8c3318472d06452bc8837783e8c29c467de7ad13ad5046b9b48b1838df91

    SHA512

    e85a45d8d217541e563a0f352e0d67657c4b44342b569aa09c6fd036bc45b1ce5f7f8267f7ea0415453ec54b33dacc5ac2ceb3e1210604544fb11352c40367ec

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

    1a0478dca6c849c44cd2090bcadb27e8

    SHA1

    b2a41f874cf4ca7df084b193f421bd8628aac3e1

    SHA256

    50af8c3318472d06452bc8837783e8c29c467de7ad13ad5046b9b48b1838df91

    SHA512

    e85a45d8d217541e563a0f352e0d67657c4b44342b569aa09c6fd036bc45b1ce5f7f8267f7ea0415453ec54b33dacc5ac2ceb3e1210604544fb11352c40367ec

  • C:\Users\Admin\AppData\Local\Temp\tmpDAF4.tmp
    MD5

    bc75781c671b4de4cddaacc1e930554f

    SHA1

    20801857681729f5be5a756debb55f9f7536ac37

    SHA256

    f474adb52a9a8aaec94cc663f1865b7d652b365360054062539ef39d1099fb88

    SHA512

    92270d31955d12ea4e67ab9f3bb2e0c9aea1b1df4312c377f1e0a7ce38e98a45bfbdb4da7cafbfc69caf429d6252fd2d42c10b4713d2b2725eff52cf60fe2963

  • memory/208-168-0x0000000000D10000-0x0000000000D11000-memory.dmp
    Filesize

    4KB

  • memory/208-285-0x0000000000D13000-0x0000000000D14000-memory.dmp
    Filesize

    4KB

  • memory/208-140-0x0000000000000000-mapping.dmp
  • memory/208-232-0x000000007EC60000-0x000000007EC61000-memory.dmp
    Filesize

    4KB

  • memory/208-169-0x0000000000D12000-0x0000000000D13000-memory.dmp
    Filesize

    4KB

  • memory/1256-138-0x0000000001130000-0x0000000001131000-memory.dmp
    Filesize

    4KB

  • memory/1256-125-0x0000000000000000-mapping.dmp
  • memory/1256-139-0x0000000001132000-0x0000000001133000-memory.dmp
    Filesize

    4KB

  • memory/1256-228-0x0000000001133000-0x0000000001134000-memory.dmp
    Filesize

    4KB

  • memory/1256-229-0x000000007FA70000-0x000000007FA71000-memory.dmp
    Filesize

    4KB

  • memory/2100-141-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/2100-142-0x000000000043783E-mapping.dmp
  • memory/2100-166-0x0000000005310000-0x000000000580E000-memory.dmp
    Filesize

    5.0MB

  • memory/2208-121-0x0000000005EA0000-0x0000000005EAB000-memory.dmp
    Filesize

    44KB

  • memory/2208-123-0x00000000092B0000-0x00000000092ED000-memory.dmp
    Filesize

    244KB

  • memory/2208-122-0x00000000091D0000-0x0000000009252000-memory.dmp
    Filesize

    520KB

  • memory/2208-120-0x00000000059B0000-0x0000000005EAE000-memory.dmp
    Filesize

    5.0MB

  • memory/2208-119-0x0000000005930000-0x0000000005931000-memory.dmp
    Filesize

    4KB

  • memory/2208-118-0x0000000005A50000-0x0000000005A51000-memory.dmp
    Filesize

    4KB

  • memory/2208-114-0x0000000000FA0000-0x0000000000FA1000-memory.dmp
    Filesize

    4KB

  • memory/2208-117-0x0000000005890000-0x0000000005891000-memory.dmp
    Filesize

    4KB

  • memory/2208-116-0x0000000005EB0000-0x0000000005EB1000-memory.dmp
    Filesize

    4KB

  • memory/3212-895-0x0000000004A30000-0x0000000004F2E000-memory.dmp
    Filesize

    5.0MB

  • memory/3212-886-0x0000000000000000-mapping.dmp
  • memory/3496-129-0x0000000001030000-0x0000000001031000-memory.dmp
    Filesize

    4KB

  • memory/3496-234-0x00000000012A3000-0x00000000012A4000-memory.dmp
    Filesize

    4KB

  • memory/3496-190-0x0000000008D40000-0x0000000008D73000-memory.dmp
    Filesize

    204KB

  • memory/3496-206-0x0000000008D20000-0x0000000008D21000-memory.dmp
    Filesize

    4KB

  • memory/3496-218-0x0000000009110000-0x0000000009111000-memory.dmp
    Filesize

    4KB

  • memory/3496-225-0x000000007F080000-0x000000007F081000-memory.dmp
    Filesize

    4KB

  • memory/3496-164-0x0000000007CF0000-0x0000000007CF1000-memory.dmp
    Filesize

    4KB

  • memory/3496-163-0x0000000007120000-0x0000000007121000-memory.dmp
    Filesize

    4KB

  • memory/3496-155-0x0000000007960000-0x0000000007961000-memory.dmp
    Filesize

    4KB

  • memory/3496-170-0x0000000008020000-0x0000000008021000-memory.dmp
    Filesize

    4KB

  • memory/3496-150-0x0000000007050000-0x0000000007051000-memory.dmp
    Filesize

    4KB

  • memory/3496-148-0x0000000006FE0000-0x0000000006FE1000-memory.dmp
    Filesize

    4KB

  • memory/3496-143-0x0000000006F10000-0x0000000006F11000-memory.dmp
    Filesize

    4KB

  • memory/3496-137-0x00000000012A2000-0x00000000012A3000-memory.dmp
    Filesize

    4KB

  • memory/3496-136-0x00000000012A0000-0x00000000012A1000-memory.dmp
    Filesize

    4KB

  • memory/3496-132-0x0000000007150000-0x0000000007151000-memory.dmp
    Filesize

    4KB

  • memory/3496-124-0x0000000000000000-mapping.dmp
  • memory/4076-126-0x0000000000000000-mapping.dmp