Analysis
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max time kernel
123s -
max time network
124s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
13-05-2021 12:55
Static task
static1
Behavioral task
behavioral1
Sample
033f7c5026b14321459c602761b3895de0631218d63e1104e7a8f891c6d8f32c.exe
Resource
win7v20210410
Behavioral task
behavioral2
Sample
033f7c5026b14321459c602761b3895de0631218d63e1104e7a8f891c6d8f32c.exe
Resource
win10v20210410
General
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Target
033f7c5026b14321459c602761b3895de0631218d63e1104e7a8f891c6d8f32c.exe
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Size
849KB
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MD5
dd7ef9a28e6c7710a15e0237d56f503f
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SHA1
25886a0775680d668f9b3aa38bf0419d3c318100
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SHA256
033f7c5026b14321459c602761b3895de0631218d63e1104e7a8f891c6d8f32c
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SHA512
712b7159ef442a499b79b08d480f2c15d1eea75cbdc155af2d7ecfc03c502f6cb18cd00db85d48c395e24606027f38f6966b02a5221be28cb9a47ad3f249712f
Malware Config
Signatures
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
033f7c5026b14321459c602761b3895de0631218d63e1104e7a8f891c6d8f32c.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\Ms.word = "C:\\Users\\Admin\\AppData\\Roaming\\WINWORD.EXE" 033f7c5026b14321459c602761b3895de0631218d63e1104e7a8f891c6d8f32c.exe -
Drops file in Windows directory 1 IoCs
Processes:
WINWORD.EXEdescription ioc process File opened for modification C:\Windows\Debug\WIA\wiatrace.log WINWORD.EXE -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Office loads VBA resources, possible macro or embedded object present
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Processes:
WINWORD.EXEdescription ioc process Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105" WINWORD.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" WINWORD.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" WINWORD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
WINWORD.EXEpid process 1984 WINWORD.EXE -
Suspicious use of SetWindowsHookEx 17 IoCs
Processes:
WINWORD.EXEpid process 1984 WINWORD.EXE 1984 WINWORD.EXE 1984 WINWORD.EXE 1984 WINWORD.EXE 1984 WINWORD.EXE 1984 WINWORD.EXE 1984 WINWORD.EXE 1984 WINWORD.EXE 1984 WINWORD.EXE 1984 WINWORD.EXE 1984 WINWORD.EXE 1984 WINWORD.EXE 1984 WINWORD.EXE 1984 WINWORD.EXE 1984 WINWORD.EXE 1984 WINWORD.EXE 1984 WINWORD.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
033f7c5026b14321459c602761b3895de0631218d63e1104e7a8f891c6d8f32c.exeWINWORD.EXEdescription pid process target process PID 1864 wrote to memory of 1984 1864 033f7c5026b14321459c602761b3895de0631218d63e1104e7a8f891c6d8f32c.exe WINWORD.EXE PID 1864 wrote to memory of 1984 1864 033f7c5026b14321459c602761b3895de0631218d63e1104e7a8f891c6d8f32c.exe WINWORD.EXE PID 1864 wrote to memory of 1984 1864 033f7c5026b14321459c602761b3895de0631218d63e1104e7a8f891c6d8f32c.exe WINWORD.EXE PID 1864 wrote to memory of 1984 1864 033f7c5026b14321459c602761b3895de0631218d63e1104e7a8f891c6d8f32c.exe WINWORD.EXE PID 1984 wrote to memory of 1572 1984 WINWORD.EXE splwow64.exe PID 1984 wrote to memory of 1572 1984 WINWORD.EXE splwow64.exe PID 1984 wrote to memory of 1572 1984 WINWORD.EXE splwow64.exe PID 1984 wrote to memory of 1572 1984 WINWORD.EXE splwow64.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\033f7c5026b14321459c602761b3895de0631218d63e1104e7a8f891c6d8f32c.exe"C:\Users\Admin\AppData\Local\Temp\033f7c5026b14321459c602761b3895de0631218d63e1104e7a8f891c6d8f32c.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1864 -
C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\033f7c5026b14321459c602761b3895de0631218d63e1104e7a8f891c6d8f32c.exe.doc"2⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1984 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122883⤵PID:1572
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\033f7c5026b14321459c602761b3895de0631218d63e1104e7a8f891c6d8f32c.exe.docMD5
13fa837b598154256b7aca4168752ce6
SHA18f087f230e28fa88101d0d5bd2c0c84c094a485b
SHA2563f91f495051aed0eaf8a03039c824d41a0760f112e944868b24ba7df62c1d581
SHA512b4358e576b998b0abdef4aaf696d25b2c53d7212d7c32315eca6dfdd58c8615020b9569a954cf9ac0581395932e2f20efdeba2eebd4bcaef6c447ad1268817b8
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memory/1572-67-0x0000000000000000-mapping.dmp
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memory/1572-68-0x000007FEFC471000-0x000007FEFC473000-memory.dmpFilesize
8KB
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memory/1864-60-0x0000000076A81000-0x0000000076A83000-memory.dmpFilesize
8KB
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memory/1864-61-0x00000000001B0000-0x00000000001B1000-memory.dmpFilesize
4KB
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memory/1984-62-0x0000000000000000-mapping.dmp
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memory/1984-63-0x0000000072F71000-0x0000000072F74000-memory.dmpFilesize
12KB
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memory/1984-64-0x00000000709F1000-0x00000000709F3000-memory.dmpFilesize
8KB
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memory/1984-65-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
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memory/1984-69-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB