Resubmissions
10-03-2023 11:06
230310-m7wwrseg7s 10Analysis
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max time kernel
148s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
10-03-2023 11:06
Behavioral task
behavioral1
Sample
2023-03-08_1254.doc
Resource
win7-20230220-en
General
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Target
2023-03-08_1254.doc
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Size
515.3MB
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MD5
56fa3a6a45a6c48a6582c8ce100cb094
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SHA1
79fa05d995a6dab74a6b85259ad83533fb4ecd08
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SHA256
b4337a636049658bd281de947f0357e33efa17f3f80c3904d959cf6777df001d
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SHA512
c65a4eab76532c4ca48eefe5814affc614b990eb2eac3e7cbcfe308ef9f0521382c9562be5aed5c338ddb9d761c3da66eda9de4638990c794bd33bc640252b35
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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
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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:
regsvr32.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process 1740 2548 regsvr32.exe WINWORD.EXE -
Loads dropped DLL 3 IoCs
Processes:
regsvr32.exeregsvr32.exepid process 1740 regsvr32.exe 1740 regsvr32.exe 3388 regsvr32.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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString WINWORD.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz WINWORD.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
WINWORD.EXEdescription 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.
Processes:
description flow ioc HTTP User-Agent header 32 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
Processes:
WINWORD.EXEpid process 2548 WINWORD.EXE 2548 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
regsvr32.exeregsvr32.exepid process 1740 regsvr32.exe 1740 regsvr32.exe 3388 regsvr32.exe 3388 regsvr32.exe 3388 regsvr32.exe 3388 regsvr32.exe -
Suspicious use of FindShellTrayWindow 3 IoCs
Processes:
WINWORD.EXEpid process 2548 WINWORD.EXE 2548 WINWORD.EXE 2548 WINWORD.EXE -
Suspicious use of SetWindowsHookEx 8 IoCs
Processes:
WINWORD.EXEpid process 2548 WINWORD.EXE 2548 WINWORD.EXE 2548 WINWORD.EXE 2548 WINWORD.EXE 2548 WINWORD.EXE 2548 WINWORD.EXE 2548 WINWORD.EXE 2548 WINWORD.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
WINWORD.EXEregsvr32.exedescription pid process target process PID 2548 wrote to memory of 1740 2548 WINWORD.EXE regsvr32.exe PID 2548 wrote to memory of 1740 2548 WINWORD.EXE regsvr32.exe PID 1740 wrote to memory of 3388 1740 regsvr32.exe regsvr32.exe PID 1740 wrote to memory of 3388 1740 regsvr32.exe regsvr32.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\2023-03-08_1254.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:2548 -
C:\Windows\System32\regsvr32.exe"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\120749.tmp"2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1740 -
C:\Windows\system32\regsvr32.exeC:\Windows\system32\regsvr32.exe "C:\Windows\system32\RbLXJ\NgSFnqgTaAz.dll"3⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:3388
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
543.7MB
MD51cd2550e072ec2792339b133005549ed
SHA1c2839a8bc63517bcee9ec16a222690e0f8aa3a74
SHA256af9f8a5c3e4edb4798c25b6fe3e41eeba5d4a41782dbf81a7ba5b3a93652a02a
SHA512e77442d144cad2635a3078a5359b24d9febc164fdfb6424cff5b4d02775ece2df3bdf6575170a9eec9b1d3ce22370efb726c9c611db86fac8d530ce2e9a7903e
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Filesize
543.7MB
MD51cd2550e072ec2792339b133005549ed
SHA1c2839a8bc63517bcee9ec16a222690e0f8aa3a74
SHA256af9f8a5c3e4edb4798c25b6fe3e41eeba5d4a41782dbf81a7ba5b3a93652a02a
SHA512e77442d144cad2635a3078a5359b24d9febc164fdfb6424cff5b4d02775ece2df3bdf6575170a9eec9b1d3ce22370efb726c9c611db86fac8d530ce2e9a7903e
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Filesize
543.7MB
MD51cd2550e072ec2792339b133005549ed
SHA1c2839a8bc63517bcee9ec16a222690e0f8aa3a74
SHA256af9f8a5c3e4edb4798c25b6fe3e41eeba5d4a41782dbf81a7ba5b3a93652a02a
SHA512e77442d144cad2635a3078a5359b24d9febc164fdfb6424cff5b4d02775ece2df3bdf6575170a9eec9b1d3ce22370efb726c9c611db86fac8d530ce2e9a7903e
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Filesize
867KB
MD56c839d892fef2f37d973ca28ce5e7a3b
SHA1175ee07dc770ad81455d1f95152f1ae07e875e0e
SHA256b2f19314b692f584203e6711e8d54f32b91a7864adbd203a4eaf6785042d47d9
SHA51218a1ffa1876554a0e7716cbe5d77ce26a373aeb16992986bb8baaece2af502b576d7001a4271ceda09cec6fbbe750c06c8d40d4449ff8b52d01a924a49462af7
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Filesize
543.7MB
MD51cd2550e072ec2792339b133005549ed
SHA1c2839a8bc63517bcee9ec16a222690e0f8aa3a74
SHA256af9f8a5c3e4edb4798c25b6fe3e41eeba5d4a41782dbf81a7ba5b3a93652a02a
SHA512e77442d144cad2635a3078a5359b24d9febc164fdfb6424cff5b4d02775ece2df3bdf6575170a9eec9b1d3ce22370efb726c9c611db86fac8d530ce2e9a7903e