Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    11-10-2023 14:28

General

  • Target

    docyo20230926.exe

  • Size

    990KB

  • MD5

    98de1e7dc7330e5737dc6faeaac764b5

  • SHA1

    972c23bafca55c88f9300165d9cdfd27bfb530ef

  • SHA256

    65a1ad88ce43b266d8efac2fd115bacc6dc29c312c4e49ea1076e8dcb8ecc50f

  • SHA512

    83b663099b9856afca37e94af6c6c9e72225127faeaab44a0ba8a9eda96bfab1364b73cd6f8fd485d5d3674e75c910c7678321433e451aa8dd9c3815232f6a66

  • SSDEEP

    12288:l1Fnywh30QCkwigVF3q5wzc9ImjzJ+Mw84KHVcXEyqYyetMonElf5nDE32dAn1nB:tnyIMP/Zc9IlMhVe4YYonEltDNq1

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.product-secured.com/
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    2V8SHFwjad34@@##

Signatures

  • AgentTesla

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

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 6 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 3 IoCs
  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 9 IoCs
  • Looks up external IP address via web service 4 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: SetClipboardViewer 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\docyo20230926.exe
    "C:\Users\Admin\AppData\Local\Temp\docyo20230926.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2224
    • C:\Users\Admin\AppData\Local\Temp\docyo20230926.exe
      "C:\Users\Admin\AppData\Local\Temp\docyo20230926.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2748
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:2304
      • C:\Users\Admin\AppData\Local\Temp\svchost.exe
        "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
        3⤵
        • Executes dropped EXE
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:1072
      • C:\Users\Admin\AppData\Local\Temp\RedLineClipperStub.exe
        "C:\Users\Admin\AppData\Local\Temp\RedLineClipperStub.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: SetClipboardViewer
        PID:2920
      • C:\Windows\SysWOW64\cmd.exe
        "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\svchost.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"
        3⤵
          PID:568
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1736
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"
          3⤵
            PID:1488
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"
          2⤵
            PID:2688
          • C:\Windows\SysWOW64\cmd.exe
            "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\docyo20230926.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"
            2⤵
              PID:2508
            • C:\Windows\SysWOW64\cmd.exe
              "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:2032
              • C:\Windows\SysWOW64\schtasks.exe
                schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
                3⤵
                • Creates scheduled task(s)
                PID:312
          • C:\Windows\system32\taskeng.exe
            taskeng.exe {6CA1D8A5-E164-40C6-9F2E-688DB9462E5B} S-1-5-21-686452656-3203474025-4140627569-1000:UUVOHKNL\Admin:Interactive:[1]
            1⤵
            • Suspicious use of WriteProcessMemory
            PID:472
            • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
              C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
              2⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • Suspicious use of WriteProcessMemory
              PID:2800
              • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
                "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"
                3⤵
                • Executes dropped EXE
                • Accesses Microsoft Outlook profiles
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious behavior: SetClipboardViewer
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of SetWindowsHookEx
                • outlook_office_path
                • outlook_win_path
                PID:2344
              • C:\Windows\SysWOW64\cmd.exe
                "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"
                3⤵
                  PID:296
                • C:\Windows\SysWOW64\cmd.exe
                  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
                  3⤵
                    PID:788
                    • C:\Windows\SysWOW64\schtasks.exe
                      schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
                      4⤵
                      • Creates scheduled task(s)
                      PID:2936
                  • C:\Windows\SysWOW64\cmd.exe
                    "cmd" /c copy "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"
                    3⤵
                      PID:1400
                • C:\Windows\SysWOW64\schtasks.exe
                  schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
                  1⤵
                  • Creates scheduled task(s)
                  PID:2408

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

                • C:\Users\Admin\AppData\Local\Temp\RedLineClipperStub.exe

                  Filesize

                  76KB

                  MD5

                  6741d00c206f685140fd9cd0957aaaa8

                  SHA1

                  8e2da1453a6001aef807661db6940b1703846890

                  SHA256

                  8c21274f725299022fbf415925210da65702198913c4713dfe5dda09ceb2d38a

                  SHA512

                  9ea9656b2a54d7f3482d4625d52aa0c51e788ece799de5bb35e821efe138cce49e0d091e4ba683ef49d727d01ff9b912f58f5a96dac3f57441709318c364f527

                • C:\Users\Admin\AppData\Local\Temp\RedLineClipperStub.exe

                  Filesize

                  76KB

                  MD5

                  6741d00c206f685140fd9cd0957aaaa8

                  SHA1

                  8e2da1453a6001aef807661db6940b1703846890

                  SHA256

                  8c21274f725299022fbf415925210da65702198913c4713dfe5dda09ceb2d38a

                  SHA512

                  9ea9656b2a54d7f3482d4625d52aa0c51e788ece799de5bb35e821efe138cce49e0d091e4ba683ef49d727d01ff9b912f58f5a96dac3f57441709318c364f527

                • C:\Users\Admin\AppData\Local\Temp\svchost.exe

                  Filesize

                  549KB

                  MD5

                  af7ee9681029aa4407f0bb51016b55b5

                  SHA1

                  1b8fb95b2d9ef80c56dbeedd95b4034a4da54b29

                  SHA256

                  7f3f6c57fd15b11e542bce5acfe2207abb78b2bdc321c3aba79ebe38355540d0

                  SHA512

                  bf9b25c39708107107fc089db99567e355cfb7d1e525ff0178eadcc23b1696c1110097444666d6bd19d324eaa250150bcf0499ecb5c0fd22906963e6e80b1dfa

                • C:\Users\Admin\AppData\Local\Temp\svchost.exe

                  Filesize

                  549KB

                  MD5

                  af7ee9681029aa4407f0bb51016b55b5

                  SHA1

                  1b8fb95b2d9ef80c56dbeedd95b4034a4da54b29

                  SHA256

                  7f3f6c57fd15b11e542bce5acfe2207abb78b2bdc321c3aba79ebe38355540d0

                  SHA512

                  bf9b25c39708107107fc089db99567e355cfb7d1e525ff0178eadcc23b1696c1110097444666d6bd19d324eaa250150bcf0499ecb5c0fd22906963e6e80b1dfa

                • C:\Users\Admin\AppData\Local\Temp\svchost.exe

                  Filesize

                  549KB

                  MD5

                  af7ee9681029aa4407f0bb51016b55b5

                  SHA1

                  1b8fb95b2d9ef80c56dbeedd95b4034a4da54b29

                  SHA256

                  7f3f6c57fd15b11e542bce5acfe2207abb78b2bdc321c3aba79ebe38355540d0

                  SHA512

                  bf9b25c39708107107fc089db99567e355cfb7d1e525ff0178eadcc23b1696c1110097444666d6bd19d324eaa250150bcf0499ecb5c0fd22906963e6e80b1dfa

                • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe

                  Filesize

                  990KB

                  MD5

                  98de1e7dc7330e5737dc6faeaac764b5

                  SHA1

                  972c23bafca55c88f9300165d9cdfd27bfb530ef

                  SHA256

                  65a1ad88ce43b266d8efac2fd115bacc6dc29c312c4e49ea1076e8dcb8ecc50f

                  SHA512

                  83b663099b9856afca37e94af6c6c9e72225127faeaab44a0ba8a9eda96bfab1364b73cd6f8fd485d5d3674e75c910c7678321433e451aa8dd9c3815232f6a66

                • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe

                  Filesize

                  990KB

                  MD5

                  98de1e7dc7330e5737dc6faeaac764b5

                  SHA1

                  972c23bafca55c88f9300165d9cdfd27bfb530ef

                  SHA256

                  65a1ad88ce43b266d8efac2fd115bacc6dc29c312c4e49ea1076e8dcb8ecc50f

                  SHA512

                  83b663099b9856afca37e94af6c6c9e72225127faeaab44a0ba8a9eda96bfab1364b73cd6f8fd485d5d3674e75c910c7678321433e451aa8dd9c3815232f6a66

                • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe

                  Filesize

                  990KB

                  MD5

                  98de1e7dc7330e5737dc6faeaac764b5

                  SHA1

                  972c23bafca55c88f9300165d9cdfd27bfb530ef

                  SHA256

                  65a1ad88ce43b266d8efac2fd115bacc6dc29c312c4e49ea1076e8dcb8ecc50f

                  SHA512

                  83b663099b9856afca37e94af6c6c9e72225127faeaab44a0ba8a9eda96bfab1364b73cd6f8fd485d5d3674e75c910c7678321433e451aa8dd9c3815232f6a66

                • \Users\Admin\AppData\Local\Temp\RedLineClipperStub.exe

                  Filesize

                  76KB

                  MD5

                  6741d00c206f685140fd9cd0957aaaa8

                  SHA1

                  8e2da1453a6001aef807661db6940b1703846890

                  SHA256

                  8c21274f725299022fbf415925210da65702198913c4713dfe5dda09ceb2d38a

                  SHA512

                  9ea9656b2a54d7f3482d4625d52aa0c51e788ece799de5bb35e821efe138cce49e0d091e4ba683ef49d727d01ff9b912f58f5a96dac3f57441709318c364f527

                • \Users\Admin\AppData\Local\Temp\svchost.exe

                  Filesize

                  549KB

                  MD5

                  af7ee9681029aa4407f0bb51016b55b5

                  SHA1

                  1b8fb95b2d9ef80c56dbeedd95b4034a4da54b29

                  SHA256

                  7f3f6c57fd15b11e542bce5acfe2207abb78b2bdc321c3aba79ebe38355540d0

                  SHA512

                  bf9b25c39708107107fc089db99567e355cfb7d1e525ff0178eadcc23b1696c1110097444666d6bd19d324eaa250150bcf0499ecb5c0fd22906963e6e80b1dfa

                • \Users\Admin\AppData\Local\Temp\svchost.exe

                  Filesize

                  549KB

                  MD5

                  af7ee9681029aa4407f0bb51016b55b5

                  SHA1

                  1b8fb95b2d9ef80c56dbeedd95b4034a4da54b29

                  SHA256

                  7f3f6c57fd15b11e542bce5acfe2207abb78b2bdc321c3aba79ebe38355540d0

                  SHA512

                  bf9b25c39708107107fc089db99567e355cfb7d1e525ff0178eadcc23b1696c1110097444666d6bd19d324eaa250150bcf0499ecb5c0fd22906963e6e80b1dfa

                • memory/1072-58-0x0000000000080000-0x00000000000A4000-memory.dmp

                  Filesize

                  144KB

                • memory/1072-68-0x0000000000080000-0x00000000000A4000-memory.dmp

                  Filesize

                  144KB

                • memory/1072-111-0x0000000074460000-0x0000000074B4E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/1072-110-0x0000000004BA0000-0x0000000004BE0000-memory.dmp

                  Filesize

                  256KB

                • memory/1072-60-0x0000000000080000-0x00000000000A4000-memory.dmp

                  Filesize

                  144KB

                • memory/1072-93-0x0000000004BA0000-0x0000000004BE0000-memory.dmp

                  Filesize

                  256KB

                • memory/1072-91-0x0000000074460000-0x0000000074B4E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/1072-87-0x0000000004BA0000-0x0000000004BE0000-memory.dmp

                  Filesize

                  256KB

                • memory/1072-83-0x0000000074460000-0x0000000074B4E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/1072-61-0x0000000000080000-0x00000000000A4000-memory.dmp

                  Filesize

                  144KB

                • memory/1072-63-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/1072-62-0x0000000000080000-0x00000000000A4000-memory.dmp

                  Filesize

                  144KB

                • memory/1072-69-0x0000000000080000-0x00000000000A4000-memory.dmp

                  Filesize

                  144KB

                • memory/1072-76-0x0000000000080000-0x00000000000A4000-memory.dmp

                  Filesize

                  144KB

                • memory/1072-73-0x0000000000080000-0x00000000000A4000-memory.dmp

                  Filesize

                  144KB

                • memory/2224-38-0x0000000074460000-0x0000000074B4E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2224-0-0x0000000074460000-0x0000000074B4E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2224-5-0x0000000004DC0000-0x0000000004EA2000-memory.dmp

                  Filesize

                  904KB

                • memory/2224-4-0x00000000048E0000-0x0000000004920000-memory.dmp

                  Filesize

                  256KB

                • memory/2224-3-0x0000000074460000-0x0000000074B4E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2224-2-0x00000000048E0000-0x0000000004920000-memory.dmp

                  Filesize

                  256KB

                • memory/2224-1-0x0000000000020000-0x000000000011E000-memory.dmp

                  Filesize

                  1016KB

                • memory/2304-50-0x00000000006C0000-0x0000000000700000-memory.dmp

                  Filesize

                  256KB

                • memory/2304-35-0x0000000000260000-0x00000000002F0000-memory.dmp

                  Filesize

                  576KB

                • memory/2304-36-0x0000000074460000-0x0000000074B4E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2304-37-0x00000000006C0000-0x0000000000700000-memory.dmp

                  Filesize

                  256KB

                • memory/2304-84-0x0000000074460000-0x0000000074B4E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2304-49-0x0000000074460000-0x0000000074B4E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2304-56-0x0000000000660000-0x00000000006B8000-memory.dmp

                  Filesize

                  352KB

                • memory/2344-106-0x0000000000400000-0x0000000000430000-memory.dmp

                  Filesize

                  192KB

                • memory/2344-104-0x0000000000400000-0x0000000000430000-memory.dmp

                  Filesize

                  192KB

                • memory/2344-107-0x0000000074460000-0x0000000074B4E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2344-99-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/2344-109-0x0000000005150000-0x0000000005190000-memory.dmp

                  Filesize

                  256KB

                • memory/2344-118-0x0000000074460000-0x0000000074B4E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2344-119-0x0000000005150000-0x0000000005190000-memory.dmp

                  Filesize

                  256KB

                • memory/2748-27-0x0000000074460000-0x0000000074B4E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2748-28-0x0000000004D40000-0x0000000004D80000-memory.dmp

                  Filesize

                  256KB

                • memory/2748-6-0x0000000000180000-0x00000000001B0000-memory.dmp

                  Filesize

                  192KB

                • memory/2748-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/2748-23-0x0000000000180000-0x00000000001B0000-memory.dmp

                  Filesize

                  192KB

                • memory/2748-26-0x0000000000180000-0x00000000001B0000-memory.dmp

                  Filesize

                  192KB

                • memory/2748-47-0x0000000074460000-0x0000000074B4E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2748-8-0x0000000000180000-0x00000000001B0000-memory.dmp

                  Filesize

                  192KB

                • memory/2748-10-0x0000000000180000-0x00000000001B0000-memory.dmp

                  Filesize

                  192KB

                • memory/2748-17-0x0000000000180000-0x00000000001B0000-memory.dmp

                  Filesize

                  192KB

                • memory/2748-19-0x0000000000180000-0x00000000001B0000-memory.dmp

                  Filesize

                  192KB

                • memory/2748-12-0x0000000000180000-0x00000000001B0000-memory.dmp

                  Filesize

                  192KB

                • memory/2748-48-0x0000000004D40000-0x0000000004D80000-memory.dmp

                  Filesize

                  256KB

                • memory/2800-90-0x00000000047F0000-0x0000000004830000-memory.dmp

                  Filesize

                  256KB

                • memory/2800-89-0x0000000074460000-0x0000000074B4E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2800-53-0x0000000000890000-0x000000000098E000-memory.dmp

                  Filesize

                  1016KB

                • memory/2800-54-0x0000000074460000-0x0000000074B4E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2800-108-0x0000000074460000-0x0000000074B4E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2800-55-0x00000000047F0000-0x0000000004830000-memory.dmp

                  Filesize

                  256KB

                • memory/2920-94-0x0000000002180000-0x00000000021C0000-memory.dmp

                  Filesize

                  256KB

                • memory/2920-92-0x0000000074460000-0x0000000074B4E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2920-85-0x00000000003D0000-0x00000000003E8000-memory.dmp

                  Filesize

                  96KB

                • memory/2920-88-0x0000000002180000-0x00000000021C0000-memory.dmp

                  Filesize

                  256KB

                • memory/2920-86-0x0000000074460000-0x0000000074B4E000-memory.dmp

                  Filesize

                  6.9MB