Analysis Overview
SHA256
da7597eed278b6ebb330685e1caea6c1bc6ad9b2abff9afa05633f4cb5f7a123
Threat Level: Known bad
The file nell.doc was found to be: Known bad.
Malicious Activity Summary
Formbook
Formbook payload
Downloads MZ/PE file
Blocklisted process makes network request
Executes dropped EXE
Loads dropped DLL
Suspicious use of SetThreadContext
Drops file in Windows directory
Office loads VBA resources, possible macro or embedded object present
Enumerates system info in registry
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Launches Equation Editor
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: AddClipboardFormatListener
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-07-17 09:25
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2024-07-17 09:25
Reported
2024-07-17 09:27
Platform
win7-20240705-en
Max time kernel
149s
Max time network
143s
Command Line
Signatures
Formbook
Formbook payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Blocklisted process makes network request
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE | N/A |
| N/A | N/A | C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE | N/A |
Downloads MZ/PE file
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\nell56789.scr | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\nell56789.scr | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2984 set thread context of 2704 | N/A | C:\Users\Admin\AppData\Roaming\nell56789.scr | C:\Users\Admin\AppData\Roaming\nell56789.scr |
| PID 2704 set thread context of 1388 | N/A | C:\Users\Admin\AppData\Roaming\nell56789.scr | C:\Windows\Explorer.EXE |
| PID 2704 set thread context of 1388 | N/A | C:\Users\Admin\AppData\Roaming\nell56789.scr | C:\Windows\Explorer.EXE |
| PID 748 set thread context of 1388 | N/A | C:\Windows\SysWOW64\wininit.exe | C:\Windows\Explorer.EXE |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\Debug\WIA\wiatrace.log | C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE | N/A |
Office loads VBA resources, possible macro or embedded object present
Launches Equation Editor
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE | N/A |
Suspicious behavior: AddClipboardFormatListener
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\nell56789.scr | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\nell56789.scr | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\nell56789.scr | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\nell56789.scr | N/A |
| N/A | N/A | C:\Windows\SysWOW64\wininit.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\wininit.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\nell56789.scr | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\wininit.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\Explorer.EXE | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\Explorer.EXE | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE | N/A |
| N/A | N/A | C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
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\nell.rtf"
C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
C:\Users\Admin\AppData\Roaming\nell56789.scr
"C:\Users\Admin\AppData\Roaming\nell56789.scr"
C:\Users\Admin\AppData\Roaming\nell56789.scr
"C:\Users\Admin\AppData\Roaming\nell56789.scr"
C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
C:\Windows\SysWOW64\wininit.exe
"C:\Windows\SysWOW64\wininit.exe"
C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Roaming\nell56789.scr"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | heinltd.top | udp |
| US | 104.21.84.22:443 | heinltd.top | tcp |
| US | 8.8.8.8:53 | c.pki.goog | udp |
| GB | 216.58.201.99:80 | c.pki.goog | tcp |
| US | 8.8.8.8:53 | www.cnoszirzbkaqz.com | udp |
| US | 167.172.228.26:80 | www.cnoszirzbkaqz.com | tcp |
| US | 8.8.8.8:53 | www.jeffreestar.gold | udp |
| US | 3.33.130.190:80 | www.jeffreestar.gold | tcp |
| US | 8.8.8.8:53 | www.concretecountertopsolutios.com | udp |
| NL | 212.32.237.91:80 | www.concretecountertopsolutios.com | tcp |
| US | 8.8.8.8:53 | www.librarylatte.com | udp |
| LT | 84.32.84.32:80 | www.librarylatte.com | tcp |
| US | 8.8.8.8:53 | www.criika.net | udp |
| US | 8.8.8.8:53 | www.koormm.top | udp |
| SG | 54.251.60.224:80 | www.koormm.top | tcp |
Files
memory/1712-0-0x000000002F581000-0x000000002F582000-memory.dmp
memory/1712-1-0x000000005FFF0000-0x0000000060000000-memory.dmp
memory/1712-2-0x000000007108D000-0x0000000071098000-memory.dmp
\Users\Admin\AppData\Roaming\nell56789.scr
| MD5 | bbb12cd2696ac986ad79c0116da987f4 |
| SHA1 | 802f65e20825ee6b2b5074e6084bc284241278d8 |
| SHA256 | d8e6a83561b9d8dbe84de21795763589d2626904ac6406ddfe2dc2342c4edb8e |
| SHA512 | 318e885d898a42b2751d387ba48b6fb359d3665d18637de48f35a53ea525bccbd1d9175a1f0429051d0a714ee887900ad3577db36d31d65f89ba7fb185484911 |
memory/2984-27-0x000000006B23E000-0x000000006B23F000-memory.dmp
memory/2984-28-0x0000000000100000-0x00000000001A0000-memory.dmp
memory/2984-29-0x0000000002130000-0x0000000002192000-memory.dmp
memory/2984-30-0x0000000000660000-0x0000000000668000-memory.dmp
memory/2704-38-0x0000000000080000-0x00000000000AF000-memory.dmp
memory/2704-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2704-33-0x0000000000080000-0x00000000000AF000-memory.dmp
memory/2704-31-0x0000000000080000-0x00000000000AF000-memory.dmp
memory/2704-41-0x0000000000080000-0x00000000000AF000-memory.dmp
memory/748-42-0x00000000005B0000-0x00000000005CA000-memory.dmp
memory/748-43-0x00000000000C0000-0x00000000000EF000-memory.dmp
memory/1712-44-0x000000007108D000-0x0000000071098000-memory.dmp
memory/1388-45-0x00000000051F0000-0x00000000052F8000-memory.dmp
memory/1388-48-0x0000000006B00000-0x0000000006C50000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm
| MD5 | de3031d0e18ddfb08b5ed543fbf5e138 |
| SHA1 | f245502af4efe21e20db08bc3b0cd9e603e38a8d |
| SHA256 | 1c4b548960023f29693ef3b72779365f82bd94cc09100548a174183e4642649d |
| SHA512 | 83f2c137bcd3e05e5bb08aa18e65c491f264bf2def9875486b0cfae6c07ae02fd500e830400eaf32cce6034738165fdcc18dfd73ad0f173d7077d9d2c5630223 |
memory/1712-75-0x000000005FFF0000-0x0000000060000000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-07-17 09:25
Reported
2024-07-17 09:27
Platform
win10v2004-20240709-en
Max time kernel
141s
Max time network
124s
Command Line
Signatures
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| Key opened | \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
Enumerates system info in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\Hardware\Description\System\BIOS | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
Suspicious behavior: AddClipboardFormatListener
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE | N/A |
Processes
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\nell.rtf" /o ""
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | roaming.officeapps.live.com | udp |
| GB | 52.109.28.47:443 | roaming.officeapps.live.com | tcp |
| US | 8.8.8.8:53 | 18.89.109.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 47.28.109.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.99.105.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 175.117.168.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | metadata.templates.cdn.office.net | udp |
| GB | 2.17.209.140:443 | metadata.templates.cdn.office.net | tcp |
| US | 8.8.8.8:53 | binaries.templates.cdn.office.net | udp |
| GB | 173.222.211.24:443 | binaries.templates.cdn.office.net | tcp |
| GB | 173.222.211.24:443 | binaries.templates.cdn.office.net | tcp |
| GB | 173.222.211.24:443 | binaries.templates.cdn.office.net | tcp |
| GB | 173.222.211.24:443 | binaries.templates.cdn.office.net | tcp |
| GB | 173.222.211.24:443 | binaries.templates.cdn.office.net | tcp |
| GB | 173.222.211.24:443 | binaries.templates.cdn.office.net | tcp |
| GB | 173.222.211.24:443 | binaries.templates.cdn.office.net | tcp |
| GB | 173.222.211.24:443 | binaries.templates.cdn.office.net | tcp |
| GB | 173.222.211.24:443 | binaries.templates.cdn.office.net | tcp |
| GB | 173.222.211.24:443 | binaries.templates.cdn.office.net | tcp |
| GB | 173.222.211.24:443 | binaries.templates.cdn.office.net | tcp |
| GB | 173.222.211.24:443 | binaries.templates.cdn.office.net | tcp |
| GB | 173.222.211.24:443 | binaries.templates.cdn.office.net | tcp |
| GB | 173.222.211.24:443 | binaries.templates.cdn.office.net | tcp |
| GB | 173.222.211.24:443 | binaries.templates.cdn.office.net | tcp |
| GB | 173.222.211.24:443 | binaries.templates.cdn.office.net | tcp |
| GB | 173.222.211.24:443 | binaries.templates.cdn.office.net | tcp |
| GB | 173.222.211.24:443 | binaries.templates.cdn.office.net | tcp |
| GB | 173.222.211.24:443 | binaries.templates.cdn.office.net | tcp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.209.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 24.211.222.173.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 192.142.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
Files
memory/3376-0-0x00007FFB2B850000-0x00007FFB2B860000-memory.dmp
memory/3376-1-0x00007FFB6B86D000-0x00007FFB6B86E000-memory.dmp
memory/3376-3-0x00007FFB2B850000-0x00007FFB2B860000-memory.dmp
memory/3376-2-0x00007FFB2B850000-0x00007FFB2B860000-memory.dmp
memory/3376-4-0x00007FFB2B850000-0x00007FFB2B860000-memory.dmp
memory/3376-5-0x00007FFB6B7D0000-0x00007FFB6B9C5000-memory.dmp
memory/3376-6-0x00007FFB6B7D0000-0x00007FFB6B9C5000-memory.dmp
memory/3376-7-0x00007FFB2B850000-0x00007FFB2B860000-memory.dmp
memory/3376-11-0x00007FFB6B7D0000-0x00007FFB6B9C5000-memory.dmp
memory/3376-10-0x00007FFB6B7D0000-0x00007FFB6B9C5000-memory.dmp
memory/3376-13-0x00007FFB6B7D0000-0x00007FFB6B9C5000-memory.dmp
memory/3376-14-0x00007FFB6B7D0000-0x00007FFB6B9C5000-memory.dmp
memory/3376-12-0x00007FFB29650000-0x00007FFB29660000-memory.dmp
memory/3376-9-0x00007FFB6B7D0000-0x00007FFB6B9C5000-memory.dmp
memory/3376-8-0x00007FFB6B7D0000-0x00007FFB6B9C5000-memory.dmp
memory/3376-15-0x00007FFB29650000-0x00007FFB29660000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\UProof\CUSTOM.DIC
| MD5 | d29962abc88624befc0135579ae485ec |
| SHA1 | e40a6458296ec6a2427bcb280572d023a9862b31 |
| SHA256 | a91a702aab9b8dd722843d3d208a21bcfa6556dfc64e2ded63975de4511eb866 |
| SHA512 | 4311e87d8d5559248d4174908817a4ddc917bf7378114435cf12da8ccb7a1542c851812afbaf7dc106771bdb2e2d05f52e7d0c50d110fc7fffe4395592492c2f |
C:\Users\Admin\AppData\Local\Temp\TCDED69.tmp\sist02.xsl
| MD5 | f883b260a8d67082ea895c14bf56dd56 |
| SHA1 | 7954565c1f243d46ad3b1e2f1baf3281451fc14b |
| SHA256 | ef4835db41a485b56c2ef0ff7094bc2350460573a686182bc45fd6613480e353 |
| SHA512 | d95924a499f32d9b4d9a7d298502181f9e9048c21dbe0496fa3c3279b263d6f7d594b859111a99b1a53bd248ee69b867d7b1768c42e1e40934e0b990f0ce051e |
memory/3376-211-0x00007FFB6B7D0000-0x00007FFB6B9C5000-memory.dmp
memory/3376-212-0x00007FFB6B86D000-0x00007FFB6B86E000-memory.dmp
memory/3376-213-0x00007FFB6B7D0000-0x00007FFB6B9C5000-memory.dmp
memory/3376-214-0x00007FFB6B7D0000-0x00007FFB6B9C5000-memory.dmp
memory/3376-238-0x00007FFB2B850000-0x00007FFB2B860000-memory.dmp
memory/3376-241-0x00007FFB2B850000-0x00007FFB2B860000-memory.dmp
memory/3376-240-0x00007FFB2B850000-0x00007FFB2B860000-memory.dmp
memory/3376-239-0x00007FFB2B850000-0x00007FFB2B860000-memory.dmp
memory/3376-242-0x00007FFB6B7D0000-0x00007FFB6B9C5000-memory.dmp