Analysis

  • max time kernel
    150s
  • max time network
    135s
  • platform
    windows10-1703_x64
  • resource
    win10-20230703-en
  • resource tags

    arch:x64arch:x86image:win10-20230703-enlocale:en-usos:windows10-1703-x64system
  • submitted
    25-07-2023 07:29

General

  • Target

    ef76306c22da2d0636a17d5b9b7e5dd895f507bcc186e1ac025e50d1cb8e90c3.exe

  • Size

    19KB

  • MD5

    24f7c61116bfe868c1975f5547c2dce6

  • SHA1

    1dc1965d2b31b8179106953f019cf92bad4cbc9c

  • SHA256

    ef76306c22da2d0636a17d5b9b7e5dd895f507bcc186e1ac025e50d1cb8e90c3

  • SHA512

    f2baddae18f88d46faf54b7ff2d66a1105b9d10c0c4162407b2e77ea18d8a040ac72599f9f648923b773cf9067f4041420abfe272e86b99160f45cbb4b7463ee

  • SSDEEP

    384:Z/f4LIB4GY6Wjy86ysDt2evcYNIFaU4AXg89S+:Z34kCt6Qy86pD01++

Malware Config

Extracted

Family

purecrypter

C2

http://cleaning.homesecuritypc.com/packages/Cndsqziiveg.mp4

Signatures

  • Detect rhadamanthys stealer shellcode 4 IoCs
  • PureCrypter

    PureCrypter is a .NET malware loader first seen in early 2021.

  • Rhadamanthys

    Rhadamanthys is an info stealer written in C++ first seen in August 2022.

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3276
      • C:\Users\Admin\AppData\Local\Temp\ef76306c22da2d0636a17d5b9b7e5dd895f507bcc186e1ac025e50d1cb8e90c3.exe
        "C:\Users\Admin\AppData\Local\Temp\ef76306c22da2d0636a17d5b9b7e5dd895f507bcc186e1ac025e50d1cb8e90c3.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4956
        • C:\Users\Admin\AppData\Local\Temp\Gqsrbidzrzf.exe
          "C:\Users\Admin\AppData\Local\Temp\Gqsrbidzrzf.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4036
          • C:\Users\Admin\AppData\Local\Temp\Jlxtqq.exe
            "C:\Users\Admin\AppData\Local\Temp\Jlxtqq.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            PID:4376
        • C:\Users\Admin\AppData\Local\Temp\ef76306c22da2d0636a17d5b9b7e5dd895f507bcc186e1ac025e50d1cb8e90c3.exe
          C:\Users\Admin\AppData\Local\Temp\ef76306c22da2d0636a17d5b9b7e5dd895f507bcc186e1ac025e50d1cb8e90c3.exe
          3⤵
            PID:4172
          • C:\Users\Admin\AppData\Local\Temp\ef76306c22da2d0636a17d5b9b7e5dd895f507bcc186e1ac025e50d1cb8e90c3.exe
            C:\Users\Admin\AppData\Local\Temp\ef76306c22da2d0636a17d5b9b7e5dd895f507bcc186e1ac025e50d1cb8e90c3.exe
            3⤵
              PID:2860
            • C:\Users\Admin\AppData\Local\Temp\ef76306c22da2d0636a17d5b9b7e5dd895f507bcc186e1ac025e50d1cb8e90c3.exe
              C:\Users\Admin\AppData\Local\Temp\ef76306c22da2d0636a17d5b9b7e5dd895f507bcc186e1ac025e50d1cb8e90c3.exe
              3⤵
              • Suspicious use of NtCreateUserProcessOtherParentProcess
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:2988
          • C:\Windows\system32\certreq.exe
            "C:\Windows\system32\certreq.exe"
            2⤵
            • Accesses Microsoft Outlook profiles
            • Checks processor information in registry
            • Suspicious behavior: EnumeratesProcesses
            • outlook_office_path
            • outlook_win_path
            PID:664

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          6KB

          MD5

          720e358731fd2039d7d1688cd25a7c50

          SHA1

          674cca1ddfe2e830c94022a0e04df98f10a1ef31

          SHA256

          28fc6b6a0481461a022971ee407cc2d447e929c123c5633041a6fa7667678b47

          SHA512

          0376e59bdcef0b04a3272429c6e27a2ebdefd878186dea11e54824cd9bab16e93be803af2e970c9097b77b20fb85b925732cdde0ca1133f3d9fd8bee2add7374

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

          Filesize

          6KB

          MD5

          720e358731fd2039d7d1688cd25a7c50

          SHA1

          674cca1ddfe2e830c94022a0e04df98f10a1ef31

          SHA256

          28fc6b6a0481461a022971ee407cc2d447e929c123c5633041a6fa7667678b47

          SHA512

          0376e59bdcef0b04a3272429c6e27a2ebdefd878186dea11e54824cd9bab16e93be803af2e970c9097b77b20fb85b925732cdde0ca1133f3d9fd8bee2add7374

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

          Filesize

          7KB

          MD5

          a5e4d245bbd587bb7fe387519ac17047

          SHA1

          72a5990586340b1f930b6dc89d7f9ed27862b011

          SHA256

          e24a1b80dbd371ae2ae0819275c4ed541b450d4aaaa2fdaa2862e4179bb462ae

          SHA512

          ad5b844c654bc67b18249274171c6b374301a3f7a302231851e3e9d38f84ae13df25df18618b4f91f531d04816377c5d26e3afe801c45dd37d983a06e629f714

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

          Filesize

          7KB

          MD5

          a5e4d245bbd587bb7fe387519ac17047

          SHA1

          72a5990586340b1f930b6dc89d7f9ed27862b011

          SHA256

          e24a1b80dbd371ae2ae0819275c4ed541b450d4aaaa2fdaa2862e4179bb462ae

          SHA512

          ad5b844c654bc67b18249274171c6b374301a3f7a302231851e3e9d38f84ae13df25df18618b4f91f531d04816377c5d26e3afe801c45dd37d983a06e629f714

        • memory/664-2260-0x0000014F29830000-0x0000014F29837000-memory.dmp

          Filesize

          28KB

        • memory/664-2265-0x00007FF7C2070000-0x00007FF7C219D000-memory.dmp

          Filesize

          1.2MB

        • memory/664-2268-0x00007FF7C2070000-0x00007FF7C219D000-memory.dmp

          Filesize

          1.2MB

        • memory/664-2273-0x00007FFCCE580000-0x00007FFCCE75B000-memory.dmp

          Filesize

          1.9MB

        • memory/664-2278-0x0000014F29830000-0x0000014F29837000-memory.dmp

          Filesize

          28KB

        • memory/664-2279-0x00007FF7C2070000-0x00007FF7C219D000-memory.dmp

          Filesize

          1.2MB

        • memory/664-2280-0x00007FFCCE580000-0x00007FFCCE75B000-memory.dmp

          Filesize

          1.9MB

        • memory/2988-1845-0x0000000002E60000-0x0000000003260000-memory.dmp

          Filesize

          4.0MB

        • memory/2988-1851-0x0000000002E60000-0x0000000003260000-memory.dmp

          Filesize

          4.0MB

        • memory/2988-1185-0x0000000000400000-0x0000000000473000-memory.dmp

          Filesize

          460KB

        • memory/2988-1298-0x0000000002E60000-0x0000000003260000-memory.dmp

          Filesize

          4.0MB

        • memory/2988-1302-0x0000000002E60000-0x0000000003260000-memory.dmp

          Filesize

          4.0MB

        • memory/2988-1694-0x0000000000400000-0x0000000000473000-memory.dmp

          Filesize

          460KB

        • memory/2988-1849-0x0000000000400000-0x0000000000473000-memory.dmp

          Filesize

          460KB

        • memory/4036-2254-0x000002246F1C0000-0x000002246F29A000-memory.dmp

          Filesize

          872KB

        • memory/4036-2253-0x0000022454D50000-0x0000022454D51000-memory.dmp

          Filesize

          4KB

        • memory/4036-2294-0x000002246F850000-0x000002246F960000-memory.dmp

          Filesize

          1.1MB

        • memory/4036-1178-0x0000022454970000-0x0000022454978000-memory.dmp

          Filesize

          32KB

        • memory/4036-1183-0x00007FFCB18E0000-0x00007FFCB22CC000-memory.dmp

          Filesize

          9.9MB

        • memory/4036-2717-0x0000022454D60000-0x0000022454D70000-memory.dmp

          Filesize

          64KB

        • memory/4036-2721-0x0000022454D60000-0x0000022454D70000-memory.dmp

          Filesize

          64KB

        • memory/4036-2773-0x0000022454D60000-0x0000022454D70000-memory.dmp

          Filesize

          64KB

        • memory/4036-2290-0x000002246F7A0000-0x000002246F84A000-memory.dmp

          Filesize

          680KB

        • memory/4036-2288-0x000002246F440000-0x000002246F4F0000-memory.dmp

          Filesize

          704KB

        • memory/4036-2292-0x0000022454D60000-0x0000022454D70000-memory.dmp

          Filesize

          64KB

        • memory/4036-2293-0x0000022454D60000-0x0000022454D70000-memory.dmp

          Filesize

          64KB

        • memory/4036-1186-0x0000022454D60000-0x0000022454D70000-memory.dmp

          Filesize

          64KB

        • memory/4036-1750-0x0000022454D60000-0x0000022454D70000-memory.dmp

          Filesize

          64KB

        • memory/4036-2291-0x0000022454D60000-0x0000022454D70000-memory.dmp

          Filesize

          64KB

        • memory/4036-1692-0x00007FFCB18E0000-0x00007FFCB22CC000-memory.dmp

          Filesize

          9.9MB

        • memory/4036-1187-0x000002246F060000-0x000002246F1BC000-memory.dmp

          Filesize

          1.4MB

        • memory/4376-2286-0x0000024770F10000-0x0000024770F18000-memory.dmp

          Filesize

          32KB

        • memory/4376-2287-0x00007FFCB18E0000-0x00007FFCB22CC000-memory.dmp

          Filesize

          9.9MB

        • memory/4376-4406-0x0000024772D30000-0x0000024772D31000-memory.dmp

          Filesize

          4KB

        • memory/4376-2514-0x00007FFCB18E0000-0x00007FFCB22CC000-memory.dmp

          Filesize

          9.9MB

        • memory/4376-2289-0x0000024773620000-0x0000024773630000-memory.dmp

          Filesize

          64KB

        • memory/4376-2308-0x0000024773630000-0x0000024773786000-memory.dmp

          Filesize

          1.3MB

        • memory/4376-4417-0x0000024773780000-0x0000024773854000-memory.dmp

          Filesize

          848KB

        • memory/4956-156-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-158-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-1172-0x00000000031D0000-0x00000000031E0000-memory.dmp

          Filesize

          64KB

        • memory/4956-1170-0x0000000006B30000-0x0000000006B96000-memory.dmp

          Filesize

          408KB

        • memory/4956-1169-0x0000000006A90000-0x0000000006B22000-memory.dmp

          Filesize

          584KB

        • memory/4956-1168-0x00000000069A0000-0x00000000069EC000-memory.dmp

          Filesize

          304KB

        • memory/4956-1184-0x0000000073650000-0x0000000073D3E000-memory.dmp

          Filesize

          6.9MB

        • memory/4956-1167-0x00000000068C0000-0x000000000692A000-memory.dmp

          Filesize

          424KB

        • memory/4956-1166-0x0000000006070000-0x0000000006071000-memory.dmp

          Filesize

          4KB

        • memory/4956-1165-0x0000000073650000-0x0000000073D3E000-memory.dmp

          Filesize

          6.9MB

        • memory/4956-184-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-182-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-180-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-178-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-176-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-174-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-172-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-170-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-168-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-166-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-164-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-162-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-160-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-1171-0x00000000072D0000-0x00000000077CE000-memory.dmp

          Filesize

          5.0MB

        • memory/4956-117-0x0000000000F90000-0x0000000000F9C000-memory.dmp

          Filesize

          48KB

        • memory/4956-154-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-152-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-150-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-148-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-146-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-144-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-142-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-140-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-138-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-136-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-134-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-132-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-130-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-128-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-126-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-124-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-122-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-121-0x0000000006750000-0x0000000006836000-memory.dmp

          Filesize

          920KB

        • memory/4956-120-0x0000000006750000-0x000000000683C000-memory.dmp

          Filesize

          944KB

        • memory/4956-119-0x00000000031D0000-0x00000000031E0000-memory.dmp

          Filesize

          64KB

        • memory/4956-118-0x0000000073650000-0x0000000073D3E000-memory.dmp

          Filesize

          6.9MB