Analysis
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max time kernel
144s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
08/03/2023, 02:58
Behavioral task
behavioral1
Sample
IO-7777 report.doc
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
IO-7777 report.doc
Resource
win10v2004-20230220-en
General
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Target
IO-7777 report.doc
-
Size
527.3MB
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MD5
034ac24d760c3e946b044c12032b40d9
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SHA1
04d3e42cad8f0a4005589d7a53d067df324768b9
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SHA256
4ec23d327a426c1b002c2c0ecebb54685b314ae3011c6978cefac00157ffc828
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SHA512
356a988864544d543ac7cdcc233535b86c772a03860463e3169e5c78f1efcd2782b840cdeb78667e43d4d16640a46dbc74cbb83a439d538d00a8e5d572f5297b
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SSDEEP
6144:xPn4VZXbatu7MDogsDkHS50LdfcGcbz1f5M9KTFrMpSlMK3Ru+Q28:xP4PbNMkgg3Ru+x
Malware Config
Extracted
emotet
Epoch4
129.232.188.93:443
164.90.222.65:443
159.65.88.10:8080
172.105.226.75:8080
115.68.227.76:8080
187.63.160.88:80
169.57.156.166:8080
185.4.135.165:8080
153.126.146.25:7080
197.242.150.244:8080
139.59.126.41:443
186.194.240.217:443
103.132.242.26:8080
206.189.28.199:8080
163.44.196.120:8080
95.217.221.146:8080
159.89.202.34:443
119.59.103.152:8080
183.111.227.137:8080
201.94.166.162:443
103.75.201.2:443
149.56.131.28:8080
79.137.35.198:8080
5.135.159.50:443
66.228.32.31:7080
91.121.146.47:8080
153.92.5.27:8080
45.235.8.30:8080
72.15.201.15:8080
107.170.39.149:8080
45.176.232.124:443
82.223.21.224:8080
167.172.199.165:8080
213.239.212.5:443
202.129.205.3:8080
94.23.45.86:4143
147.139.166.154:8080
167.172.253.162:8080
91.207.28.33:8080
188.44.20.25:443
104.168.155.143:8080
110.232.117.186:8080
164.68.99.3:8080
1.234.2.232:8080
173.212.193.249:8080
182.162.143.56:443
160.16.142.56:8080
101.50.0.91:8080
103.43.75.120:443
Signatures
-
Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process 3632 4312 regsvr32.exe 58 -
Loads dropped DLL 2 IoCs
pid Process 3632 regsvr32.exe 3120 regsvr32.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\woHwMPaRAYNbmB.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\CqWxDjJXCniJK\\woHwMPaRAYNbmB.dll\"" regsvr32.exe -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description 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
description 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 -
Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.
description flow ioc HTTP User-Agent header 42 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
pid Process 4312 WINWORD.EXE 4312 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 3632 regsvr32.exe 3632 regsvr32.exe 3120 regsvr32.exe 3120 regsvr32.exe 3120 regsvr32.exe 3120 regsvr32.exe -
Suspicious use of FindShellTrayWindow 3 IoCs
pid Process 4312 WINWORD.EXE 4312 WINWORD.EXE 4312 WINWORD.EXE -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 4312 WINWORD.EXE 4312 WINWORD.EXE 4312 WINWORD.EXE 4312 WINWORD.EXE 4312 WINWORD.EXE 4312 WINWORD.EXE 4312 WINWORD.EXE 4312 WINWORD.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 4312 wrote to memory of 3632 4312 WINWORD.EXE 94 PID 4312 wrote to memory of 3632 4312 WINWORD.EXE 94 PID 3632 wrote to memory of 3120 3632 regsvr32.exe 98 PID 3632 wrote to memory of 3120 3632 regsvr32.exe 98
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\IO-7777 report.doc" /o ""1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4312 -
C:\Windows\System32\regsvr32.exe"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\035848.tmp"2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3632 -
C:\Windows\system32\regsvr32.exeC:\Windows\system32\regsvr32.exe "C:\Windows\system32\CqWxDjJXCniJK\woHwMPaRAYNbmB.dll"3⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
PID:3120
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
535.7MB
MD549d805bdd67f596cc1e3ec542257b004
SHA1c5917591ff50ab18122898a38807c188ec58a672
SHA25682c686354cb49727b40f46546e791eafe90ba6a58912a638a43105045e55dc3c
SHA512697256477705b77f6e2df89f35d2e7b5256ab3d60283383be2361b210d4deafa4734f949cfcd160ba915958414881c69e283b0530dfedab5303e1d483befe877
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Filesize
535.7MB
MD549d805bdd67f596cc1e3ec542257b004
SHA1c5917591ff50ab18122898a38807c188ec58a672
SHA25682c686354cb49727b40f46546e791eafe90ba6a58912a638a43105045e55dc3c
SHA512697256477705b77f6e2df89f35d2e7b5256ab3d60283383be2361b210d4deafa4734f949cfcd160ba915958414881c69e283b0530dfedab5303e1d483befe877
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Filesize
871KB
MD5586c64b6fd7bcf2c5a553612c3b21e45
SHA1f52362a551e938b7508a8efc620335ff05a171ac
SHA2563bc46bd946c948b6b7c7d1cc1280510ae8a7937356fc96c98fb4f1aab23ba1ba
SHA51218c1fdcaa636a0a8b9647f490707c6367b81dff18b8124fb3c7c94a3821a3c678f0357763980e2cd14edbd344d265798cca4dde1dac83a02282ee900cbe631d3
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Filesize
535.7MB
MD549d805bdd67f596cc1e3ec542257b004
SHA1c5917591ff50ab18122898a38807c188ec58a672
SHA25682c686354cb49727b40f46546e791eafe90ba6a58912a638a43105045e55dc3c
SHA512697256477705b77f6e2df89f35d2e7b5256ab3d60283383be2361b210d4deafa4734f949cfcd160ba915958414881c69e283b0530dfedab5303e1d483befe877