Resubmissions
21-01-2021 15:22
210121-qwg92t3xgj 1021-01-2021 15:09
210121-dv7rvp9b5e 1021-12-2020 23:00
201221-c1vx2ve4rn 10Analysis
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max time kernel
139s -
max time network
138s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
21-01-2021 15:22
Static task
static1
Behavioral task
behavioral1
Sample
intelligence 12.20.doc
Resource
win7v20201028
Behavioral task
behavioral2
Sample
intelligence 12.20.doc
Resource
win10v20201028
General
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Target
intelligence 12.20.doc
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Size
80KB
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MD5
2eac8507ab396c2e9476ae91a2bf92af
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SHA1
fbbf0822676e29969047b1e0d0ba85704183445e
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SHA256
e2a4320528f9332872848340b5d6a5cffadca8596567e245eb5a401c8ef918b6
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SHA512
baa5d0d27031999ee4c8f4f8424807f2f9e1645a2ee455bfe31a559b9821ad519f942ada5225b54a459bdc6422837065ae88a41caa907a7865d8891624cdcbfe
Malware Config
Signatures
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Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
rundll32.exedescription pid pid_target process target process Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 3024 3508 rundll32.exe -
Blocklisted process makes network request 1 IoCs
Processes:
mshta.exeflow pid process 25 3492 mshta.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
WINWORD.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString WINWORD.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
WINWORD.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU WINWORD.EXE -
Modifies registry class 1 IoCs
Processes:
rundll32.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000_Classes\Local Settings rundll32.exe -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
Processes:
WINWORD.EXEpid process 740 WINWORD.EXE 740 WINWORD.EXE -
Suspicious use of SetWindowsHookEx 18 IoCs
Processes:
WINWORD.EXEpid process 740 WINWORD.EXE 740 WINWORD.EXE 740 WINWORD.EXE 740 WINWORD.EXE 740 WINWORD.EXE 740 WINWORD.EXE 740 WINWORD.EXE 740 WINWORD.EXE 740 WINWORD.EXE 740 WINWORD.EXE 740 WINWORD.EXE 740 WINWORD.EXE 740 WINWORD.EXE 740 WINWORD.EXE 740 WINWORD.EXE 740 WINWORD.EXE 740 WINWORD.EXE 740 WINWORD.EXE -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
rundll32.exemshta.exedescription pid process target process PID 3024 wrote to memory of 3492 3024 rundll32.exe mshta.exe PID 3024 wrote to memory of 3492 3024 rundll32.exe mshta.exe PID 3024 wrote to memory of 3492 3024 rundll32.exe mshta.exe PID 3492 wrote to memory of 3748 3492 mshta.exe rundll32.exe PID 3492 wrote to memory of 3748 3492 mshta.exe rundll32.exe PID 3492 wrote to memory of 3748 3492 mshta.exe rundll32.exe
Processes
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C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\intelligence 12.20.doc" /o ""1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
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C:\Windows\system32\rundll32.exerundll32.exe url.dll,OpenURL c:\users\public\index.hta1⤵
- Process spawned unexpected child process
- Modifies registry class
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\users\public\index.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}2⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" c:\programdata\aEUo7.pdf,ShowDialogA -r3⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\users\public\index.htaMD5
1a3f1ff5f6815debe76570808d97dbfb
SHA1918ff79b132e91b4653c3fd2c02ce4a478a8a584
SHA256c454f855e42ed6e19c84dd20f22fc1d3e7494546327d0f61fed28bf3c386df5d
SHA512e63902aabc1b2038c526d6b6bfbc8a0ed76dbe51e4afb11cb257c2c21785f10cea76c314d647f0f22b0c8bd3fe470bc59004c1829ed4270aa9e78c9c9481a349
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\??\c:\programdata\aEUo7.pdfMD5
5d30a56fa6b8bf8bf7bd359ccc48dac7
SHA1705f41d37a25b6b1104a7895386af11307d7e036
SHA25634ba901d2bf1c03d430e4a5223099792de9ad5cc3a3812d45a3408714c978385
SHA512f9372b6ad25175b14f3d620c14e1fcbcb0f64e62d5b0af7cdd396b89e5709f294d2f6f956002298b09a65b28433e8a2f157a1d6a270a7add8b87747c5f591b04
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memory/740-2-0x00007FFD4E120000-0x00007FFD4E130000-memory.dmpFilesize
64KB
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memory/740-3-0x00007FFD4E120000-0x00007FFD4E130000-memory.dmpFilesize
64KB
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memory/740-4-0x00007FFD4E120000-0x00007FFD4E130000-memory.dmpFilesize
64KB
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memory/740-5-0x00007FFD4E120000-0x00007FFD4E130000-memory.dmpFilesize
64KB
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memory/740-6-0x0000023529A00000-0x000002352A037000-memory.dmpFilesize
6.2MB
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memory/3492-8-0x0000000000000000-mapping.dmp
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memory/3748-9-0x0000000000000000-mapping.dmp