Analysis
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max time kernel
142s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
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submitted
27-06-2024 09:29
General
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Target
doc20240627-00073.bat.exe
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Size
399KB
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MD5
86ab45f914a047213012a783615a54fa
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SHA1
42166d9321e30e79c33583e77a0d3de67e6142f2
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SHA256
bb2c0f8952c81ef515102521083091df311b71929dc075a506a93cc5d8855527
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SHA512
cbb6a1ccb8c4e28c8ea22c2ad881b7ef8c243c8e6f3abd5fc818d080a6b4417fb0ac5f412d488e46865fd5fe5db64e83b70c965e28fb65df9ac03696ee240a1f
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SSDEEP
6144:bVGdx6xuO1TzGL7Bq0XtpZ+lsMA2Usp58ie1VvfpK70qkmXkbgn3/2tw7:ht1TzGLFtXtKxxEr1xg70ZEkbM3/2tw7
Malware Config
Signatures
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Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
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Loads dropped DLL 4 IoCs
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Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
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Suspicious use of SetThreadContext 1 IoCs
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Drops file in Windows directory 1 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: MapViewOfSection 1 IoCs
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Suspicious use of WriteProcessMemory 5 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\doc20240627-00073.bat.exe"C:\Users\Admin\AppData\Local\Temp\doc20240627-00073.bat.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\doc20240627-00073.bat.exe"C:\Users\Admin\AppData\Local\Temp\doc20240627-00073.bat.exe"2⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\nsp4538.tmp\BgImage.dllFilesize
7KB
MD5e9f3051a79f12aed819b91f028a463c1
SHA1d088868584cdc04d391ec27cd318034a5ce562bc
SHA25691b8073e8e67945e14fb10963fc9101fae8c298bd4cd7080b4e47b5bdd4af85c
SHA512eac1fb48403959dc8a5ed20d8ced83c2276c510a781191c9f850bd3a9214c10c8ae0a4d9159dc3bb08f9686bc62f25dd31cccdcc48f568cc8678012333afe894
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C:\Users\Admin\AppData\Local\Temp\nsp4538.tmp\System.dllFilesize
11KB
MD575ed96254fbf894e42058062b4b4f0d1
SHA1996503f1383b49021eb3427bc28d13b5bbd11977
SHA256a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7
SHA51258174896db81d481947b8745dafe3a02c150f3938bb4543256e8cce1145154e016d481df9fe68dac6d48407c62cbe20753320ebd5fe5e84806d07ce78e0eb0c4
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C:\Users\Admin\AppData\Local\Temp\nsp4538.tmp\UserInfo.dllFilesize
4KB
MD5a6f622a2f12ac10bca04e23deff5cada
SHA1abf851b5ccfb64004e9b49718a467bd754545887
SHA256b8fa7b9393fff910144768588c471ca7c9ec98a2b8b186b2172b8ba7a5279500
SHA51235c8b0db179104e638f1b40f3f8038a41fdc327e112de5cb0dbb97cbf1dfa276fcf6400fcb46b88cb5ba233ca769becbdb4b4d40920adca831e3c0f38193c50f
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memory/3480-33-0x0000000001700000-0x00000000040E9000-memory.dmpFilesize
41.9MB
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memory/3480-34-0x00000000004A0000-0x00000000016F4000-memory.dmpFilesize
18.3MB
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memory/3480-37-0x0000000001700000-0x00000000040E9000-memory.dmpFilesize
41.9MB
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memory/4576-30-0x0000000004030000-0x0000000006A19000-memory.dmpFilesize
41.9MB
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memory/4576-31-0x0000000077B41000-0x0000000077C61000-memory.dmpFilesize
1.1MB
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memory/4576-32-0x0000000074824000-0x0000000074825000-memory.dmpFilesize
4KB
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memory/4576-35-0x0000000004030000-0x0000000006A19000-memory.dmpFilesize
41.9MB
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memory/4576-42-0x0000000004030000-0x0000000006A19000-memory.dmpFilesize
41.9MB