Analysis
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max time kernel
149s -
max time network
135s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
18-11-2022 02:38
Behavioral task
behavioral1
Sample
3 908.xls
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
3 908.xls
Resource
win10v2004-20221111-en
General
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Target
3 908.xls
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Size
91KB
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MD5
6718425c2cb38bd932ccdaece719a0de
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SHA1
7ad84b9260f337f97329c0d92025818d942d04d6
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SHA256
f9b476777865d3370bfa9d4bfc226610c70cda30691427b05256240c4c08d77f
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SHA512
7fcfc4807f86d09701292f40275dc632df611f9629a3a72b696eabf484d7d247ba6f66a797051ead629641049c2e1e65e8fefa126601ad4f4586fc713909283c
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SSDEEP
1536:LKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgMbCXuZH4gb4CEn9J4ZGX3O:LKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgS
Malware Config
Extracted
https://encuadernacionesartis.com/Vk2Z1Na/IZpyySkbU/
http://eznetb.synology.me/@eaDir/E36Y/
http://bytesendesign.nl/cgi-bin/LolX/
http://choltice.eu/mwc/syl3Y/
Extracted
emotet
Epoch5
202.28.34.99:8080
80.211.107.116:8080
175.126.176.79:8080
218.38.121.17:443
139.196.72.155:8080
103.71.99.57:8080
87.106.97.83:7080
178.62.112.199:8080
64.227.55.231:8080
46.101.98.60:8080
54.37.228.122:443
128.199.217.206:443
190.145.8.4:443
209.239.112.82:8080
85.214.67.203:8080
198.199.70.22:8080
128.199.242.164:8080
178.238.225.252:8080
103.85.95.4:8080
103.126.216.86:443
104.244.79.94:443
36.67.23.59:443
37.44.244.177:8080
160.16.143.191:8080
85.25.120.45:8080
103.56.149.105:8080
210.57.209.142:8080
195.77.239.39:8080
62.171.178.147:8080
118.98.72.86:443
103.224.241.74:8080
185.148.169.10:8080
103.41.204.169:8080
186.250.48.5:443
165.22.254.236:8080
93.104.209.107:8080
139.59.80.108:8080
196.44.98.190:8080
114.79.130.68:443
115.178.55.22:80
103.254.12.236:7080
172.105.115.71:8080
174.138.33.49:7080
51.75.33.122:443
83.229.80.93:8080
78.47.204.80:443
188.165.79.151:443
202.134.4.210:7080
82.98.180.154:7080
Signatures
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Process spawned unexpected child process 4 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
regsvr32.exeregsvr32.exeregsvr32.exeregsvr32.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 884 4020 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3340 4020 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4392 4020 regsvr32.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4832 4020 regsvr32.exe EXCEL.EXE -
Downloads MZ/PE file
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Loads dropped DLL 4 IoCs
Processes:
regsvr32.exeregsvr32.exeregsvr32.exeregsvr32.exepid process 3340 regsvr32.exe 3728 regsvr32.exe 4392 regsvr32.exe 3424 regsvr32.exe -
Adds Run key to start application 2 TTPs 4 IoCs
Processes:
regsvr32.exeregsvr32.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ldCHbmog.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\UeStX\\ldCHbmog.dll\"" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ehwoS.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\KoAsaso\\ehwoS.dll\"" regsvr32.exe -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
EXCEL.EXEdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
EXCEL.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 4020 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 12 IoCs
Processes:
regsvr32.exeregsvr32.exeregsvr32.exeregsvr32.exepid process 3340 regsvr32.exe 3340 regsvr32.exe 3728 regsvr32.exe 3728 regsvr32.exe 4392 regsvr32.exe 4392 regsvr32.exe 3728 regsvr32.exe 3728 regsvr32.exe 3424 regsvr32.exe 3424 regsvr32.exe 3424 regsvr32.exe 3424 regsvr32.exe -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 4020 EXCEL.EXE 4020 EXCEL.EXE 4020 EXCEL.EXE 4020 EXCEL.EXE 4020 EXCEL.EXE 4020 EXCEL.EXE 4020 EXCEL.EXE 4020 EXCEL.EXE 4020 EXCEL.EXE 4020 EXCEL.EXE 4020 EXCEL.EXE 4020 EXCEL.EXE -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
EXCEL.EXEregsvr32.exeregsvr32.exedescription pid process target process PID 4020 wrote to memory of 884 4020 EXCEL.EXE regsvr32.exe PID 4020 wrote to memory of 884 4020 EXCEL.EXE regsvr32.exe PID 4020 wrote to memory of 3340 4020 EXCEL.EXE regsvr32.exe PID 4020 wrote to memory of 3340 4020 EXCEL.EXE regsvr32.exe PID 3340 wrote to memory of 3728 3340 regsvr32.exe regsvr32.exe PID 3340 wrote to memory of 3728 3340 regsvr32.exe regsvr32.exe PID 4020 wrote to memory of 4392 4020 EXCEL.EXE regsvr32.exe PID 4020 wrote to memory of 4392 4020 EXCEL.EXE regsvr32.exe PID 4392 wrote to memory of 3424 4392 regsvr32.exe regsvr32.exe PID 4392 wrote to memory of 3424 4392 regsvr32.exe regsvr32.exe PID 4020 wrote to memory of 4832 4020 EXCEL.EXE regsvr32.exe PID 4020 wrote to memory of 4832 4020 EXCEL.EXE regsvr32.exe
Processes
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C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\3 908.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4020 -
C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx2⤵
- Process spawned unexpected child process
PID:884
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3340 -
C:\Windows\system32\regsvr32.exeC:\Windows\system32\regsvr32.exe "C:\Windows\system32\UeStX\ldCHbmog.dll"3⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
PID:3728
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4392 -
C:\Windows\system32\regsvr32.exeC:\Windows\system32\regsvr32.exe "C:\Windows\system32\KoAsaso\ehwoS.dll"3⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
PID:3424
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-
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C:\Windows\System32\regsvr32.exeC:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx2⤵
- Process spawned unexpected child process
PID:4832
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
413KB
MD5ce5a53ca3bdfc7db6702705b79864d89
SHA1967fb62027940eee14da54919bb8df1ddb95e0c8
SHA256fc345d151b44639631fc6b88a979462dfba3aa5c281ee3a526c550359268c694
SHA5127ae165d8a7fc291079dfb1c949c2bc89e760bdefa0a567a1c61c59b5228ced7ed80fb1c467c9cadd4bf34d4075f296f7f53027b288d76f67df0b84040abc66b0
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Filesize
413KB
MD5ce5a53ca3bdfc7db6702705b79864d89
SHA1967fb62027940eee14da54919bb8df1ddb95e0c8
SHA256fc345d151b44639631fc6b88a979462dfba3aa5c281ee3a526c550359268c694
SHA5127ae165d8a7fc291079dfb1c949c2bc89e760bdefa0a567a1c61c59b5228ced7ed80fb1c467c9cadd4bf34d4075f296f7f53027b288d76f67df0b84040abc66b0
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Filesize
413KB
MD595fb9cd2076252f006ab75729b2ff123
SHA13533333c00905c4408de94b6d21c8d48ee06511b
SHA2564dfa363918e577746ec2b1e28a21f73cdca3c15ec7fa703210fb15a52707b46f
SHA512339894f3a19f7528efbd9d04b86d459aad2b2e65e5b375c7a59911b9dffc76cb32c978c72acd1f9516714241b5d11d536c410a49224afc788b8d112e85141f2e
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Filesize
413KB
MD595fb9cd2076252f006ab75729b2ff123
SHA13533333c00905c4408de94b6d21c8d48ee06511b
SHA2564dfa363918e577746ec2b1e28a21f73cdca3c15ec7fa703210fb15a52707b46f
SHA512339894f3a19f7528efbd9d04b86d459aad2b2e65e5b375c7a59911b9dffc76cb32c978c72acd1f9516714241b5d11d536c410a49224afc788b8d112e85141f2e
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Filesize
12B
MD5bc6e6f16b8a077ef5fbc8d59d0b931b9
SHA1e02aa1b106d5c7c6a98def2b13005d5b84fd8dc8
SHA2564ae7c3b6ac0beff671efa8cf57386151c06e58ca53a78d83f36107316cec125f
SHA512f986313ffca1a20c61fa2cff5cb597f1af10a650aecca497a746e8d11d1b6bf33e9e6a25eb7ba26af2fcfaa70472d8250b908419a188a16e17191fc26f423f52
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Filesize
413KB
MD595fb9cd2076252f006ab75729b2ff123
SHA13533333c00905c4408de94b6d21c8d48ee06511b
SHA2564dfa363918e577746ec2b1e28a21f73cdca3c15ec7fa703210fb15a52707b46f
SHA512339894f3a19f7528efbd9d04b86d459aad2b2e65e5b375c7a59911b9dffc76cb32c978c72acd1f9516714241b5d11d536c410a49224afc788b8d112e85141f2e
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Filesize
413KB
MD5ce5a53ca3bdfc7db6702705b79864d89
SHA1967fb62027940eee14da54919bb8df1ddb95e0c8
SHA256fc345d151b44639631fc6b88a979462dfba3aa5c281ee3a526c550359268c694
SHA5127ae165d8a7fc291079dfb1c949c2bc89e760bdefa0a567a1c61c59b5228ced7ed80fb1c467c9cadd4bf34d4075f296f7f53027b288d76f67df0b84040abc66b0