Analysis
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max time kernel
42s -
max time network
45s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
18-10-2022 17:15
Static task
static1
Behavioral task
behavioral1
Sample
Originals.lnk
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
Originals.lnk
Resource
win10v2004-20220812-en
Behavioral task
behavioral3
Sample
carcasses/peg.dll
Resource
win7-20220901-en
Behavioral task
behavioral4
Sample
carcasses/peg.dll
Resource
win10v2004-20220812-en
Behavioral task
behavioral5
Sample
carcasses/virtuosity.cmd
Resource
win7-20220812-en
Behavioral task
behavioral6
Sample
carcasses/virtuosity.cmd
Resource
win10v2004-20220812-en
General
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Target
Originals.lnk
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Size
1KB
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MD5
66a8168164f88a724e0a6b0a34d39842
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SHA1
125017cb152593ecf1a168f785f80bd809ab91af
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SHA256
35a446d6961e2dfac55be5c60713e86172e5746bc984002a6d04747b66578731
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SHA512
8276bc76ce7de48b6116801caeacf35d1dd573f733b7de52d60bb5e9893511381123b0aee2d7927c6c1421ffa35e84802fa665369b0f4c629268484d12aaade9
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 868 bbc.exe -
Loads dropped DLL 1 IoCs
pid Process 1760 cmd.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 1908 wrote to memory of 1760 1908 cmd.exe 29 PID 1908 wrote to memory of 1760 1908 cmd.exe 29 PID 1908 wrote to memory of 1760 1908 cmd.exe 29 PID 1760 wrote to memory of 868 1760 cmd.exe 30 PID 1760 wrote to memory of 868 1760 cmd.exe 30 PID 1760 wrote to memory of 868 1760 cmd.exe 30 PID 868 wrote to memory of 988 868 bbc.exe 31 PID 868 wrote to memory of 988 868 bbc.exe 31 PID 868 wrote to memory of 988 868 bbc.exe 31 PID 868 wrote to memory of 988 868 bbc.exe 31 PID 868 wrote to memory of 988 868 bbc.exe 31 PID 868 wrote to memory of 988 868 bbc.exe 31 PID 868 wrote to memory of 988 868 bbc.exe 31
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\Originals.lnk1⤵
- Suspicious use of WriteProcessMemory
PID:1908 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c carcasses\virtuosity.cmd re gs vr2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1760 -
C:\Users\Admin\AppData\Local\Temp\bbc.exeC:\Users\Admin\AppData\Local\Temp\bbc.exe carcasses\peg.des3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:868 -
C:\Windows\SysWOW64\regsvr32.execarcasses\peg.des4⤵PID:988
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
19KB
MD559bce9f07985f8a4204f4d6554cff708
SHA1645c424974fbe5fe7a04cac73f1c23c96e1570b8
SHA256ca24aef558647274d019dfb4d7fd1506d84ec278795c30ba53b81bb36130dc57
SHA5123cf5825a9c7fb80ea0bd36775a92d07f34cd3709ed2c7c8f500f1c8baa5242768f6d575bd2477b77e3f177e7a4994d5c5bddb24c6eb43b60a6bd83ea026a8198
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Filesize
19KB
MD559bce9f07985f8a4204f4d6554cff708
SHA1645c424974fbe5fe7a04cac73f1c23c96e1570b8
SHA256ca24aef558647274d019dfb4d7fd1506d84ec278795c30ba53b81bb36130dc57
SHA5123cf5825a9c7fb80ea0bd36775a92d07f34cd3709ed2c7c8f500f1c8baa5242768f6d575bd2477b77e3f177e7a4994d5c5bddb24c6eb43b60a6bd83ea026a8198