Analysis
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max time kernel
71s -
max time network
127s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
27-01-2021 09:52
Static task
static1
Behavioral task
behavioral1
Sample
1111.xls
Resource
win7v20201028
General
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Target
1111.xls
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Size
153KB
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MD5
6bb69e29bcbe8950f250fbf92e779682
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SHA1
4dfb1de7f258afab63d166ebc275a552c5b8a0a6
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SHA256
ddf32aed6b7cda0de80bec9b11a506a32404c298c10a35bb6299a57d6b3ee823
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SHA512
52ff8915e8dfccd84fc709129a8057cc50a70ac72e2f95fe187c2b834455ad205770067430f99b9ece1b251665b014d00b0d65b19cb17e6767e93ce92860e8ab
Malware Config
Extracted
https://coopacaustro.com/kev/scfrd.dll
Extracted
zloader
kev
26/01
https://gadgetswolf.com/post.php
https://homesoapmolds.com/post.php
https://govemedico.tk/post.php
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:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 572 1648 rundll32.exe EXCEL.EXE -
Blocklisted process makes network request 3 IoCs
Processes:
msiexec.exeflow pid process 12 1956 msiexec.exe 14 1956 msiexec.exe 16 1956 msiexec.exe -
Loads dropped DLL 4 IoCs
Processes:
rundll32.exepid process 572 rundll32.exe 572 rundll32.exe 572 rundll32.exe 572 rundll32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of SetThreadContext 1 IoCs
Processes:
rundll32.exedescription pid process target process PID 572 set thread context of 1956 572 rundll32.exe msiexec.exe -
Enumerates system info in registry 2 TTPs 1 IoCs
Processes:
EXCEL.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE -
Processes:
EXCEL.EXEdescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote EXCEL.EXE Set value (int) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" EXCEL.EXE Set value (int) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1648 EXCEL.EXE -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
msiexec.exedescription pid process Token: SeSecurityPrivilege 1956 msiexec.exe Token: SeSecurityPrivilege 1956 msiexec.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
EXCEL.EXEpid process 1648 EXCEL.EXE 1648 EXCEL.EXE 1648 EXCEL.EXE -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
EXCEL.EXErundll32.exedescription pid process target process PID 1648 wrote to memory of 572 1648 EXCEL.EXE rundll32.exe PID 1648 wrote to memory of 572 1648 EXCEL.EXE rundll32.exe PID 1648 wrote to memory of 572 1648 EXCEL.EXE rundll32.exe PID 1648 wrote to memory of 572 1648 EXCEL.EXE rundll32.exe PID 1648 wrote to memory of 572 1648 EXCEL.EXE rundll32.exe PID 1648 wrote to memory of 572 1648 EXCEL.EXE rundll32.exe PID 1648 wrote to memory of 572 1648 EXCEL.EXE rundll32.exe PID 572 wrote to memory of 1956 572 rundll32.exe msiexec.exe PID 572 wrote to memory of 1956 572 rundll32.exe msiexec.exe PID 572 wrote to memory of 1956 572 rundll32.exe msiexec.exe PID 572 wrote to memory of 1956 572 rundll32.exe msiexec.exe PID 572 wrote to memory of 1956 572 rundll32.exe msiexec.exe PID 572 wrote to memory of 1956 572 rundll32.exe msiexec.exe PID 572 wrote to memory of 1956 572 rundll32.exe msiexec.exe PID 572 wrote to memory of 1956 572 rundll32.exe msiexec.exe PID 572 wrote to memory of 1956 572 rundll32.exe msiexec.exe
Processes
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C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\1111.xls1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\ProgramData\formnet.dll,DllRegisterServer2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\msiexec.exemsiexec.exe3⤵
- Blocklisted process makes network request
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\ProgramData\formnet.dllMD5
b0f3fa047f6ae39a145fd364f693638e
SHA11951696d8aca4a31614bb68f9da392402785e14e
SHA2560bf22b8f9aaef21afe71fcbbea62325e7582dad410b0a537f38a9eb8e6855890
SHA51286e4516705380617a9f48b2e1cd7d9e676439398b802eb6047cd478d4b10bf8f4ba20e019f337b01761fa247cd631ccab22851f078089c2e1c61574bca9f5b98
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\ProgramData\formnet.dllMD5
b0f3fa047f6ae39a145fd364f693638e
SHA11951696d8aca4a31614bb68f9da392402785e14e
SHA2560bf22b8f9aaef21afe71fcbbea62325e7582dad410b0a537f38a9eb8e6855890
SHA51286e4516705380617a9f48b2e1cd7d9e676439398b802eb6047cd478d4b10bf8f4ba20e019f337b01761fa247cd631ccab22851f078089c2e1c61574bca9f5b98
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\ProgramData\formnet.dllMD5
b0f3fa047f6ae39a145fd364f693638e
SHA11951696d8aca4a31614bb68f9da392402785e14e
SHA2560bf22b8f9aaef21afe71fcbbea62325e7582dad410b0a537f38a9eb8e6855890
SHA51286e4516705380617a9f48b2e1cd7d9e676439398b802eb6047cd478d4b10bf8f4ba20e019f337b01761fa247cd631ccab22851f078089c2e1c61574bca9f5b98
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\ProgramData\formnet.dllMD5
b0f3fa047f6ae39a145fd364f693638e
SHA11951696d8aca4a31614bb68f9da392402785e14e
SHA2560bf22b8f9aaef21afe71fcbbea62325e7582dad410b0a537f38a9eb8e6855890
SHA51286e4516705380617a9f48b2e1cd7d9e676439398b802eb6047cd478d4b10bf8f4ba20e019f337b01761fa247cd631ccab22851f078089c2e1c61574bca9f5b98
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\ProgramData\formnet.dllMD5
b0f3fa047f6ae39a145fd364f693638e
SHA11951696d8aca4a31614bb68f9da392402785e14e
SHA2560bf22b8f9aaef21afe71fcbbea62325e7582dad410b0a537f38a9eb8e6855890
SHA51286e4516705380617a9f48b2e1cd7d9e676439398b802eb6047cd478d4b10bf8f4ba20e019f337b01761fa247cd631ccab22851f078089c2e1c61574bca9f5b98
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memory/572-6-0x0000000000000000-mapping.dmp
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memory/572-7-0x0000000074D11000-0x0000000074D13000-memory.dmpFilesize
8KB
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memory/572-13-0x00000000003A0000-0x00000000003C6000-memory.dmpFilesize
152KB
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memory/572-14-0x00000000000C0000-0x00000000000C1000-memory.dmpFilesize
4KB
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memory/1648-4-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
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memory/1648-3-0x0000000070E31000-0x0000000070E33000-memory.dmpFilesize
8KB
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memory/1648-2-0x000000002F641000-0x000000002F644000-memory.dmpFilesize
12KB
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memory/1944-5-0x000007FEF6F80000-0x000007FEF71FA000-memory.dmpFilesize
2.5MB
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memory/1956-15-0x0000000000000000-mapping.dmp
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memory/1956-17-0x0000000000090000-0x00000000000B6000-memory.dmpFilesize
152KB