Analysis
- max time kernel
158s - max time network
161s - platform
windows10-2004_x64 - resource
win10v2004-20220310-en - submitted
17/03/2022, 08:51
Static task
static1
Behavioral task
behavioral1
Sample
Invoice.xlsm
Resource
win7-20220311-en
General
- Target Invoice.xlsm
- Size 21KB
- Sample220317-kr7bfscff2
- SHA256 7da6ff113e7093fa1a608493f0ca00fca9b8e2d76804f953ac03393efca04969
- MD5 827557fb1abefcb910cca82e810c868f
- SHA1 534bbe0bde5ca101ac5198c83ffc678e4aac67cf
- SHA512 859de13f8e93388f2fded6f0c013c5ced07a91487f89446655cd3ca96497efb57b591a071b3b2a5f4462a352fe534e2425b26968283db6bb0df78a4309f4f952
- MD5 SHA1 SHA512
Malware Config
Extracted
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xlm4.0
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xlm40.dropper
https://www.almoeqatar.com/cgi-bin/3g/
Extracted
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emotet
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Epoch4
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45.76.1.145:443
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217.182.25.250:8080
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119.193.124.41:7080
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192.99.251.50:443
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146.59.226.45:443
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173.212.193.249:8080
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207.38.84.195:8080
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45.118.135.203:7080
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31.24.158.56:8080
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209.126.98.206:8080
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212.237.17.99:8080
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216.158.226.206:443
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50.30.40.196:8080
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82.165.152.127:8080
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159.8.59.82:8080
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107.182.225.142:8080
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110.232.117.186:8080
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72.15.201.15:8080
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5.9.116.246:8080
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79.172.212.216:8080
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212.24.98.99:8080
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188.44.20.25:443
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101.50.0.91:8080
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203.114.109.124:443
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151.106.112.196:8080
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196.218.30.83:443
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176.56.128.118:443
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159.65.88.10:8080
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195.154.133.20:443
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176.104.106.96:8080
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45.118.115.99:8080
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129.232.188.93:443
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45.176.232.124:443
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158.69.222.101:443
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45.142.114.231:8080
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103.221.221.247:8080
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103.43.46.182:443
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185.157.82.211:8080
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51.91.7.5:8080
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103.75.201.2:443
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167.99.115.35:8080
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185.8.212.130:7080
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46.55.222.11:443
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197.242.150.244:8080
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58.227.42.236:80
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195.201.151.129:8080
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51.254.140.238:7080
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50.116.54.215:443
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138.185.72.26:8080
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178.79.147.66:8080
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189.126.111.200:7080
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153.126.146.25:7080
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103.75.201.4:443
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164.68.99.3:8080
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131.100.24.231:80
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1.234.2.232:8080
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\EXCEL.EXE is not expected to spawn this process 3960 1884 regsvr32.exe 81 - Downloads MZ/PE file
- Loads dropped DLL 2 IoCs
pid Process 3960 regsvr32.exe 2696 regsvr32.exe - Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\Suxfdbkcy\bxjcl.pjk 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 EXCEL.EXE 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 - Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1884 EXCEL.EXE - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2696 regsvr32.exe 2696 regsvr32.exe - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 1884 EXCEL.EXE 1884 EXCEL.EXE 1884 EXCEL.EXE 1884 EXCEL.EXE 1884 EXCEL.EXE 1884 EXCEL.EXE 1884 EXCEL.EXE 1884 EXCEL.EXE 1884 EXCEL.EXE 1884 EXCEL.EXE 1884 EXCEL.EXE 1884 EXCEL.EXE - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1884 wrote to memory of 3960 1884 EXCEL.EXE 86 PID 1884 wrote to memory of 3960 1884 EXCEL.EXE 86 PID 1884 wrote to memory of 3960 1884 EXCEL.EXE 86 PID 3960 wrote to memory of 2696 3960 regsvr32.exe 89 PID 3960 wrote to memory of 2696 3960 regsvr32.exe 89 PID 3960 wrote to memory of 2696 3960 regsvr32.exe 89
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\Invoice.xlsm"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1884 -
C:\Windows\SysWow64\regsvr32.exeC:\Windows\SysWow64\regsvr32.exe -s ..\rfs.dll2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:3960 -
C:\Windows\SysWOW64\regsvr32.exeC:\Windows\SysWOW64\regsvr32.exe /s "C:\Windows\SysWOW64\Suxfdbkcy\bxjcl.pjk"3⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:2696
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