Analysis

  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    08-04-2021 15:51

General

  • Target

    DHL_Express_Shipment_Invoice_Confirmation_CBJ190517000131_74700456XXXX.exe

  • Size

    1.0MB

  • MD5

    a2cbfba13ad3bb397d6d445cd0034a3d

  • SHA1

    32d6e5d1ab75a72dc1760c89feb83d2342e78f6b

  • SHA256

    3097b8c703159cf613aba9c2f42b090a391c060402af0c322b29f26e4bf4c22e

  • SHA512

    d1e165efe2caff2fd7c3f31d1bafdc5c251d460e49a27666f4964b76dfe355189fdf7830b4cdcf7a6e566266300622f70bd8af3d4c1bd12f87992327550932f8

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    sammorris@askoblue.com
  • Password:
    P)RTDOg8

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 IoCs
  • Executes dropped EXE 2 IoCs
  • Obfuscated with Agile.Net obfuscator 4 IoCs

    Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 35 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DHL_Express_Shipment_Invoice_Confirmation_CBJ190517000131_74700456XXXX.exe
    "C:\Users\Admin\AppData\Local\Temp\DHL_Express_Shipment_Invoice_Confirmation_CBJ190517000131_74700456XXXX.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4812
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Files" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Files.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:596
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Files" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Files.exe"
        3⤵
        • Adds Run key to start application
        PID:852
    • C:\Users\Admin\AppData\Roaming\Files.exe
      "C:\Users\Admin\AppData\Roaming\Files.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1052
      • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe
        "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\DHL Overdue Account Notice - 1301356423.PDF"
        3⤵
        • Checks processor information in registry
        • Modifies Internet Explorer settings
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1860
        • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
          "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --backgroundcolor=16514043
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:3088
          • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
            "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=3CB8E38D88F6BC7A3C376F6427FD13E4 --mojo-platform-channel-handle=1636 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
            5⤵
              PID:4440
            • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
              "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=renderer --disable-browser-side-navigation --disable-gpu-compositing --service-pipe-token=B2D1CDA27CBF6F393DA2377E1C081A68 --lang=en-US --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --enable-pinch --device-scale-factor=1 --num-raster-threads=1 --enable-gpu-async-worker-context --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;0,17,3553;0,18,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;1,17,3553;1,18,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;2,17,3553;2,18,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;3,17,3553;3,18,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553;4,17,3553;4,18,3553;5,0,3553;5,1,3553;5,2,3553;5,3,3553;5,4,3553;5,5,3553;5,6,3553;5,7,3553;5,8,3553;5,9,3553;5,10,3553;5,11,3553;5,12,3553;5,13,3553;5,14,3553;5,15,3553;5,16,3553;5,17,3553;5,18,3553;6,0,3553;6,1,3553;6,2,3553;6,3,3553;6,4,3553;6,5,3553;6,6,3553;6,7,3553;6,8,3553;6,9,3553;6,10,3553;6,11,3553;6,12,3553;6,13,3553;6,14,3553;6,15,3553;6,16,3553;6,17,3553;6,18,3553 --disable-accelerated-video-decode --service-request-channel-token=B2D1CDA27CBF6F393DA2377E1C081A68 --renderer-client-id=2 --mojo-platform-channel-handle=1628 --allow-no-sandbox-job /prefetch:1
              5⤵
                PID:4568
              • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
                "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=renderer --disable-browser-side-navigation --disable-gpu-compositing --service-pipe-token=510D43A86C5E990DF15F23B0FA90288D --lang=en-US --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --enable-pinch --device-scale-factor=1 --num-raster-threads=1 --enable-gpu-async-worker-context --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;0,17,3553;0,18,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;1,17,3553;1,18,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;2,17,3553;2,18,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;3,17,3553;3,18,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553;4,17,3553;4,18,3553;5,0,3553;5,1,3553;5,2,3553;5,3,3553;5,4,3553;5,5,3553;5,6,3553;5,7,3553;5,8,3553;5,9,3553;5,10,3553;5,11,3553;5,12,3553;5,13,3553;5,14,3553;5,15,3553;5,16,3553;5,17,3553;5,18,3553;6,0,3553;6,1,3553;6,2,3553;6,3,3553;6,4,3553;6,5,3553;6,6,3553;6,7,3553;6,8,3553;6,9,3553;6,10,3553;6,11,3553;6,12,3553;6,13,3553;6,14,3553;6,15,3553;6,16,3553;6,17,3553;6,18,3553 --disable-accelerated-video-decode --service-request-channel-token=510D43A86C5E990DF15F23B0FA90288D --renderer-client-id=4 --mojo-platform-channel-handle=2224 --allow-no-sandbox-job /prefetch:1
                5⤵
                  PID:4788
                • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
                  "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=ED42C3809D0253CF50102823B06BABA7 --mojo-platform-channel-handle=2240 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
                  5⤵
                    PID:4752
                  • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
                    "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=CEA10DC093DF976D41F94430E4637992 --mojo-platform-channel-handle=1728 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
                    5⤵
                      PID:1488
                    • C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
                      "C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=C2EED08B08F2D471ADA1D837D59F0D87 --mojo-platform-channel-handle=2452 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
                      5⤵
                        PID:1584
                  • C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
                    "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
                    3⤵
                    • Executes dropped EXE
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    • Suspicious use of SetWindowsHookEx
                    PID:2068

              Network

              MITRE ATT&CK Matrix ATT&CK v6

              Persistence

              Registry Run Keys / Startup Folder

              1
              T1060

              Defense Evasion

              Modify Registry

              2
              T1112

              Credential Access

              Credentials in Files

              3
              T1081

              Discovery

              System Information Discovery

              2
              T1082

              Query Registry

              1
              T1012

              Collection

              Data from Local System

              3
              T1005

              Replay Monitor

              Loading Replay Monitor...

              Downloads

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

                91c9ae9c9a17a9db5e08b120e668c74c

                SHA1

                50770954c1ceb0bb6f1d5d3f2de2a0a065773723

                SHA256

                e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

                SHA512

                ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

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

                91c9ae9c9a17a9db5e08b120e668c74c

                SHA1

                50770954c1ceb0bb6f1d5d3f2de2a0a065773723

                SHA256

                e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

                SHA512

                ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

              • C:\Users\Admin\AppData\Roaming\DHL Overdue Account Notice - 1301356423.PDF
                MD5

                cbaf67b05e781dee65a10d6459da8e2f

                SHA1

                29e06f15d8d14745eeeba6f9ec502ffc3f4b27b4

                SHA256

                bc4d8009c636ccca89801d5fcea5ba5370070b9f0777b11b1b0af46a61d8bab5

                SHA512

                5389614083fe85074ee0a266ba4e8867a69d5a84ae834ecbf7a7c85503313fd223297a6638c9532b7c3f5d58447fcdfabf63cd09e02b2130631aff8e45d0c52e

              • C:\Users\Admin\AppData\Roaming\Files.exe
                MD5

                a2cbfba13ad3bb397d6d445cd0034a3d

                SHA1

                32d6e5d1ab75a72dc1760c89feb83d2342e78f6b

                SHA256

                3097b8c703159cf613aba9c2f42b090a391c060402af0c322b29f26e4bf4c22e

                SHA512

                d1e165efe2caff2fd7c3f31d1bafdc5c251d460e49a27666f4964b76dfe355189fdf7830b4cdcf7a6e566266300622f70bd8af3d4c1bd12f87992327550932f8

              • C:\Users\Admin\AppData\Roaming\Files.exe
                MD5

                a2cbfba13ad3bb397d6d445cd0034a3d

                SHA1

                32d6e5d1ab75a72dc1760c89feb83d2342e78f6b

                SHA256

                3097b8c703159cf613aba9c2f42b090a391c060402af0c322b29f26e4bf4c22e

                SHA512

                d1e165efe2caff2fd7c3f31d1bafdc5c251d460e49a27666f4964b76dfe355189fdf7830b4cdcf7a6e566266300622f70bd8af3d4c1bd12f87992327550932f8

              • memory/596-125-0x0000000000000000-mapping.dmp
              • memory/852-126-0x0000000000000000-mapping.dmp
              • memory/1052-143-0x000000000A0D0000-0x000000000A0D1000-memory.dmp
                Filesize

                4KB

              • memory/1052-142-0x0000000007BE0000-0x0000000007BEB000-memory.dmp
                Filesize

                44KB

              • memory/1052-127-0x0000000000000000-mapping.dmp
              • memory/1052-136-0x0000000005820000-0x0000000005D1E000-memory.dmp
                Filesize

                5.0MB

              • memory/1052-140-0x0000000005820000-0x0000000005D1E000-memory.dmp
                Filesize

                5.0MB

              • memory/1488-175-0x0000000077802000-0x000000007780200C-memory.dmp
                Filesize

                12B

              • memory/1488-177-0x0000000000000000-mapping.dmp
              • memory/1584-179-0x0000000077802000-0x000000007780200C-memory.dmp
                Filesize

                12B

              • memory/1584-181-0x0000000000000000-mapping.dmp
              • memory/1860-141-0x0000000000000000-mapping.dmp
              • memory/2068-146-0x000000000043763E-mapping.dmp
              • memory/2068-187-0x00000000049F0000-0x0000000004EEE000-memory.dmp
                Filesize

                5.0MB

              • memory/2068-186-0x0000000002210000-0x0000000002211000-memory.dmp
                Filesize

                4KB

              • memory/2068-183-0x00000000055F0000-0x00000000055F1000-memory.dmp
                Filesize

                4KB

              • memory/2068-149-0x0000000000530000-0x000000000056C000-memory.dmp
                Filesize

                240KB

              • memory/2068-153-0x00000000049F0000-0x0000000004EEE000-memory.dmp
                Filesize

                5.0MB

              • memory/3088-154-0x0000000000000000-mapping.dmp
              • memory/4440-155-0x0000000077802000-0x000000007780200C-memory.dmp
                Filesize

                12B

              • memory/4440-157-0x0000000000000000-mapping.dmp
              • memory/4568-159-0x0000000077802000-0x000000007780200C-memory.dmp
                Filesize

                12B

              • memory/4568-161-0x0000000000000000-mapping.dmp
              • memory/4752-170-0x0000000077802000-0x000000007780200C-memory.dmp
                Filesize

                12B

              • memory/4752-173-0x0000000000000000-mapping.dmp
              • memory/4788-165-0x0000000077802000-0x000000007780200C-memory.dmp
                Filesize

                12B

              • memory/4788-167-0x0000000000000000-mapping.dmp
              • memory/4812-121-0x0000000006820000-0x0000000006841000-memory.dmp
                Filesize

                132KB

              • memory/4812-124-0x00000000054A0000-0x000000000599E000-memory.dmp
                Filesize

                5.0MB

              • memory/4812-119-0x00000000054A0000-0x000000000599E000-memory.dmp
                Filesize

                5.0MB

              • memory/4812-118-0x0000000005540000-0x0000000005541000-memory.dmp
                Filesize

                4KB

              • memory/4812-117-0x0000000005390000-0x0000000005391000-memory.dmp
                Filesize

                4KB

              • memory/4812-116-0x00000000059A0000-0x00000000059A1000-memory.dmp
                Filesize

                4KB

              • memory/4812-122-0x00000000068D0000-0x00000000068D1000-memory.dmp
                Filesize

                4KB

              • memory/4812-114-0x0000000000A60000-0x0000000000A61000-memory.dmp
                Filesize

                4KB

              • memory/4812-123-0x00000000067E0000-0x00000000067E1000-memory.dmp
                Filesize

                4KB