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Analysis

  • max time kernel
    148s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    05/03/2024, 17:53

General

  • Target

    b54d5805dbdd7bab5717cb8721b298af.exe

  • Size

    1.1MB

  • MD5

    b54d5805dbdd7bab5717cb8721b298af

  • SHA1

    d86c2fbadf679b48c296d0f3c72a9e19854afb9f

  • SHA256

    a456f230d9e716dd0d3d7a07af50f4f51e6d2c941a7f875de98458192268505e

  • SHA512

    b81a24a540eb5a5bfdddec74bab1aebe9b760000c0cf0501e001cb4c8b5cde5c5af89798fa3754d5d0c2a36fb7def33c00615cab7ee8c62d52939d40c5411ce4

  • SSDEEP

    24576:ZiNzy/uFX7TWX1c4BLZJD99SjA9mGajHA+svnJheAERzltAWNfk:kySfaD9E8qA+B

Malware Config

Signatures

  • Ardamax

    A keylogger first seen in 2013.

  • Ardamax main executable 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 11 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in System32 directory 9 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 38 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b54d5805dbdd7bab5717cb8721b298af.exe
    "C:\Users\Admin\AppData\Local\Temp\b54d5805dbdd7bab5717cb8721b298af.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1412
    • C:\Users\Admin\AppData\Local\Temp\Install.exe
      "C:\Users\Admin\AppData\Local\Temp\Install.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:2300
      • C:\Windows\SysWOW64\28463\RVBR.exe
        "C:\Windows\system32\28463\RVBR.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Drops file in System32 directory
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of SetWindowsHookEx
        PID:3040

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    64KB

    MD5

    c11aba177d59b59c65dbc75e0026fa9e

    SHA1

    e93913c3748de3a0ba131d1fa96dd16019262c6e

    SHA256

    b63e603c8f0511f69751ddb8ecb29f5cf9dddff80f5da558e50afe0effcb5282

    SHA512

    0a5c92b0b0854f3b893362b0bd2719cf5965e03c1fadf9b20a3ef508d972ae9fb144554c77f4d83f9fb46e0cfe37f6cd23058316a8c051370299f4c5667de9b5

  • C:\Windows\SysWOW64\28463\AKV.exe

    Filesize

    457KB

    MD5

    46ccfd974518e5849738449034a05a17

    SHA1

    d391108816aed7ba8f7beb205ad7171c74eae6b2

    SHA256

    571aae1f8a260909dbc45c67b4c547fc573c07097b36d4e18db0e36d91deccfe

    SHA512

    773a40a37ebc54cbde7c40ca98001150e78da43726e475f1ee25ef869a39682c0fcd46fb57cf6130151cd8115aa6f2c196e57414affe464fd3b137eb5b317a7a

  • C:\Windows\SysWOW64\28463\RVBR.001

    Filesize

    388B

    MD5

    11d3d9802c46a9a86fa765854a3f5eb8

    SHA1

    5db7410ebd41d880b50251e01f11fcdefff853d6

    SHA256

    948dbed176118c1b36d2bc443c9236f1df0436ebbf75fcd11dbfc398f2e982cf

    SHA512

    dc36edbd798a2c7afe3dfe402492775fcd0589726548489beef83d5576abc8072c506df04b0b8d886d90a456ea26c5f5f3c98d9a9769890d04ad65f2d0ded22c

  • C:\Windows\SysWOW64\28463\RVBR.006

    Filesize

    8KB

    MD5

    395bbef326fa5ad1216b23f5debf167b

    SHA1

    aa4a7334b5a693b3f0d6f47b568e0d13a593d782

    SHA256

    7c1c4ba8978d3ec53bc6da4d8f9e5e1ca52edf5ccf5ec19ef06b02055ff3b3d1

    SHA512

    dc3f3d7501feb10623807e89f28a0e38bdbbd4a7e2ad964c8ab33c392bde61896fe40bb7773f6309cd59ad9a686decbd81c15b588ac8d311fd2a273ac9410679

  • C:\Windows\SysWOW64\28463\RVBR.007

    Filesize

    5KB

    MD5

    1b5e72f0ebd49cf146f9ae68d792ffe5

    SHA1

    1e90a69c12b9a849fbbac0670296b07331c1cf87

    SHA256

    8f4485675fe35b14276f5c8af8a6b42f03cf1b5de638355e4c4b28397385e87e

    SHA512

    6364f5581de5aaec09b5d1c4e5745193f981ff93cf91e20c6c9ff56566b5d182ccbdacf9aeed1d7a01460eb21619e14ac4ab31b083a951b45b3b7f9d93a62ffc

  • C:\Windows\SysWOW64\28463\key.bin

    Filesize

    105B

    MD5

    27c90d4d9b049f4cd00f32ed1d2e5baf

    SHA1

    338a3ea8f1e929d8916ece9b6e91e697eb562550

    SHA256

    172d6f21165fb3ca925e5b000451fd8946920206f7438018c28b158b90cf5ffb

    SHA512

    d73dadb3cf74c647ce5bad5b87d3fb42a212defcba8afb8cf962020b61a0369c0a2b1005797583daf1f1ae88b29b7288bc544a53d643f3519cf604aa0ffd6dae

  • \Users\Admin\AppData\Local\Temp\@ADBD.tmp

    Filesize

    4KB

    MD5

    4b8ed89120fe8ddc31ddba07bc15372b

    SHA1

    181e7ac3d444656f50c1cd02a6832708253428e6

    SHA256

    2ae6b0e14465338be0bc5ad10703f5c823d092ebb8cff7e5a05b7d79c8459b93

    SHA512

    49269b71270b3eda0ddcb399021de9c88f6fd2086cf54fa4898a91e64afe109d44b635d47a5ea9bae7f53a5e968af97fa13bdf699ba00ce879ecadd7bbc8af23

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

    Filesize

    809KB

    MD5

    624cfb18ef0fbb67b17286741cf8aef3

    SHA1

    eefe01dcdd68d1b2e4af387e1622dbc256601dec

    SHA256

    7bf34710e8159022da60b4c530e02e55c2d69cbf78043243d76dce1d73718a16

    SHA512

    0a2fc50267774883b6325960d46c938ba687c46e33e19c98b5ae13b528bb62fd309ad18da8e44972596f70dc20dd909af10749fc5982703890b669f089a4cf2f

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

    Filesize

    429KB

    MD5

    e8fea5e153d5c39828f681b67f2fd000

    SHA1

    426ac1f5ebc8b8e7db28e69286e337ed9b5e2921

    SHA256

    7c71f25d9cc1f773f992263954c0df68bc5e707858d47fb5f1d4f0045dff75a9

    SHA512

    dc85aa79d7707942a72e22a563adb01238991e494cf495ba7869aea8e7e24f8a9bf88cfa31d8e37df3a1106704556cae3fdaaea373d9ada4391b20908a13d649

  • \Windows\SysWOW64\28463\RVBR.exe

    Filesize

    649KB

    MD5

    2bff0c75a04401dada0adfab933e46a7

    SHA1

    364d97f90b137f8e359d998164fb15d474be7bbb

    SHA256

    2aa53bc5da3294817f95d8806effdf28e5af49661a955256c46db2b67cb6e6da

    SHA512

    88b82973d3c042bceb75e12297111fa7b8bd4e2a7a37d26b698c595d8d75ec670cc7aebfa2572206c1b2a4ecbbfa3103affb8bee6d7ef47428a225e2cd1bea3f

  • \Windows\SysWOW64\28463\RVBR.exe

    Filesize

    635KB

    MD5

    214d09d491964d9a427c8b090649f93b

    SHA1

    6b811369e1ff7278cc3e7ff1ff5dc27607922fa9

    SHA256

    b8577e261d9c7ad1bbf8f6a4821449846eb1013e16fbfe1320016c45b85dc641

    SHA512

    1e51ac775cae1b6041832fe559d9064e34e48b47d84f3f537736970f56c8e9921d3ef4808b650c5a3acae7c144fe2d44f73442373578b86221aaeb425fc45827

  • memory/1412-0-0x0000000074020000-0x00000000745CB000-memory.dmp

    Filesize

    5.7MB

  • memory/1412-13-0x0000000074020000-0x00000000745CB000-memory.dmp

    Filesize

    5.7MB

  • memory/1412-2-0x0000000000090000-0x00000000000D0000-memory.dmp

    Filesize

    256KB

  • memory/1412-1-0x0000000074020000-0x00000000745CB000-memory.dmp

    Filesize

    5.7MB

  • memory/2300-30-0x00000000030A0000-0x000000000317F000-memory.dmp

    Filesize

    892KB

  • memory/2300-69-0x00000000030A0000-0x000000000317F000-memory.dmp

    Filesize

    892KB

  • memory/3040-36-0x0000000000280000-0x000000000035F000-memory.dmp

    Filesize

    892KB

  • memory/3040-47-0x00000000032C0000-0x00000000032C1000-memory.dmp

    Filesize

    4KB

  • memory/3040-43-0x00000000024B0000-0x00000000024B1000-memory.dmp

    Filesize

    4KB

  • memory/3040-42-0x0000000001E20000-0x0000000001E21000-memory.dmp

    Filesize

    4KB

  • memory/3040-41-0x0000000000260000-0x0000000000261000-memory.dmp

    Filesize

    4KB

  • memory/3040-54-0x00000000033B0000-0x00000000033B1000-memory.dmp

    Filesize

    4KB

  • memory/3040-55-0x00000000033D0000-0x00000000033D1000-memory.dmp

    Filesize

    4KB

  • memory/3040-53-0x0000000003390000-0x0000000003391000-memory.dmp

    Filesize

    4KB

  • memory/3040-52-0x0000000003370000-0x0000000003371000-memory.dmp

    Filesize

    4KB

  • memory/3040-51-0x0000000003350000-0x0000000003351000-memory.dmp

    Filesize

    4KB

  • memory/3040-50-0x0000000003330000-0x0000000003331000-memory.dmp

    Filesize

    4KB

  • memory/3040-49-0x0000000003310000-0x0000000003311000-memory.dmp

    Filesize

    4KB

  • memory/3040-48-0x00000000032E0000-0x00000000032E1000-memory.dmp

    Filesize

    4KB

  • memory/3040-44-0x0000000002610000-0x0000000002611000-memory.dmp

    Filesize

    4KB

  • memory/3040-45-0x0000000003280000-0x0000000003281000-memory.dmp

    Filesize

    4KB

  • memory/3040-46-0x00000000032A0000-0x00000000032A1000-memory.dmp

    Filesize

    4KB

  • memory/3040-39-0x00000000031E0000-0x00000000031E3000-memory.dmp

    Filesize

    12KB

  • memory/3040-38-0x0000000000320000-0x000000000037A000-memory.dmp

    Filesize

    360KB

  • memory/3040-37-0x0000000000400000-0x00000000004DF000-memory.dmp

    Filesize

    892KB

  • memory/3040-62-0x0000000003720000-0x0000000003730000-memory.dmp

    Filesize

    64KB

  • memory/3040-68-0x0000000000400000-0x00000000004DF000-memory.dmp

    Filesize

    892KB

  • memory/3040-35-0x0000000000280000-0x000000000035F000-memory.dmp

    Filesize

    892KB

  • memory/3040-70-0x0000000000280000-0x000000000035F000-memory.dmp

    Filesize

    892KB

  • memory/3040-71-0x0000000000280000-0x000000000035F000-memory.dmp

    Filesize

    892KB

  • memory/3040-72-0x0000000000320000-0x000000000037A000-memory.dmp

    Filesize

    360KB

  • memory/3040-74-0x0000000003720000-0x0000000003730000-memory.dmp

    Filesize

    64KB

  • memory/3040-77-0x0000000000400000-0x00000000004DF000-memory.dmp

    Filesize

    892KB

  • memory/3040-88-0x0000000000400000-0x00000000004DF000-memory.dmp

    Filesize

    892KB