Analysis
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max time kernel
91s -
max time network
136s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
06-07-2022 14:08
Static task
static1
Behavioral task
behavioral1
Sample
documents.lnk
Resource
win7-20220414-en
windows7_x64
Behavioral task
behavioral2
Sample
documents.lnk
Resource
win10v2004-20220414-en
windows10-2004_x64
Behavioral task
behavioral3
Sample
o7m2se.dll
Resource
win7-20220414-en
windows7_x64
Behavioral task
behavioral4
Sample
o7m2se.dll
Resource
win10v2004-20220414-en
windows10-2004_x64
General
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Target
documents.lnk
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Size
2KB
-
MD5
516c04aa962dfa0e35e7c992c0eb88a9
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SHA1
0ebc08f00d9eb38a72b43be9809162d3362a35de
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SHA256
a7885b210054b39cb48f1f95a6697480dfa5f81f5439b69b493ae36a0266d1df
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SHA512
92a0fa2f6c7dab55bf60079b33a00dd96aabc19a4a391bfc458a696da62e78035e251f7856a2f4c5665db115305f0aef97c5ab4fd4571c96a147b79fc370e1fe
Malware Config
Extracted
bumblebee
507r
146.19.173.184:443
41.15.71.157:274
66.9.9.138:154
36.201.196.202:367
173.200.61.240:100
116.241.116.41:410
242.232.106.206:162
10.195.46.61:489
249.112.226.98:243
130.242.219.205:423
154.56.0.113:443
179.5.59.188:228
217.246.42.10:346
169.197.227.201:474
231.228.102.246:186
185.165.82.120:182
74.230.15.244:376
94.88.121.46:403
120.181.249.142:177
138.141.158.45:217
128.79.29.175:298
104.168.200.192:443
196.168.84.24:372
143.27.231.233:335
133.99.126.202:263
222.202.140.206:438
117.172.191.115:471
158.208.5.127:269
218.155.13.204:130
219.110.187.248:435
209.244.102.105:112
23.19.58.212:443
4.177.13.86:289
204.223.28.129:424
246.134.183.74:364
165.132.190.127:368
89.159.155.176:455
185.69.113.39:124
47.26.53.19:195
41.70.42.112:452
74.219.241.225:481
66.15.189.146:122
28.23.200.103:366
159.248.192.111:424
170.88.0.154:120
79.196.23.192:106
146.70.106.76:443
249.57.205.117:166
62.82.188.190:234
221.131.148.148:357
206.245.228.10:133
51.68.146.186:443
118.89.112.82:338
116.205.234.96:247
205.160.222.15:274
Signatures
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Enumerates VirtualBox registry keys 2 TTPs 5 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxGuest rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxMouse rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxService rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxSF rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxVideo rundll32.exe -
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\FADT\VBOX__ rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\RSDT\VBOX__ rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ rundll32.exe -
Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions rundll32.exe -
Checks BIOS information in registry 2 TTPs 3 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion rundll32.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation cmd.exe -
Identifies Wine through registry keys 2 TTPs 1 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Wine rundll32.exe -
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
pid Process 3340 rundll32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe 3340 rundll32.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 4904 wrote to memory of 892 4904 cmd.exe 83 PID 4904 wrote to memory of 892 4904 cmd.exe 83 PID 892 wrote to memory of 3340 892 cmd.exe 84 PID 892 wrote to memory of 3340 892 cmd.exe 84
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\documents.lnk1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4904 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c start rundll32.exe o7m2se.dll,LLBMPMUsqf2⤵
- Suspicious use of WriteProcessMemory
PID:892 -
C:\Windows\system32\rundll32.exerundll32.exe o7m2se.dll,LLBMPMUsqf3⤵
- Enumerates VirtualBox registry keys
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Looks for VirtualBox Guest Additions in registry
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:3340
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