Analysis
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max time kernel
146s -
max time network
125s -
platform
windows10-2004_x64 -
resource
win10v2004-20240730-en -
resource tags
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submitted
02-08-2024 12:36
General
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Target
1/0fb86a8ba8fdf57990c283080a671c1320cbcdfd0e8b5f5a250d9c38a6fce305.exe
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Size
146KB
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MD5
2357ecbcf3b566c76c839daf7ecf2681
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SHA1
89d9b7c3eff0a15dc9dbbfe2163de7d5e9479f58
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SHA256
0fb86a8ba8fdf57990c283080a671c1320cbcdfd0e8b5f5a250d9c38a6fce305
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SHA512
bb5630ae44e684f2dfc74478c57bf97a94045501a64022d563e87f2a60d777307cab2b5a14e6764d25a2fd1f27901624c1ee76ca551d5a5e3a21abc4befef401
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SSDEEP
3072:V6glyuxE4GsUPnliByocWepo2NVLiguo/pyEwUS:V6gDBGpvEByocWeauV2gvzwU
Malware Config
Extracted
C:\7V7uPExzv.README.txt
http://nullblgtk7dwzpfklgktzll27ovvnj7pvqkoprmhubnnb32qcbmcpgid.onion/
http://group.goocasino.org
https://nullbulge.com
Signatures
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Renames multiple (640) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Deletes itself 1 IoCs
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Executes dropped EXE 1 IoCs
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops desktop.ini file(s) 2 IoCs
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Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
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Drops file in System32 directory 4 IoCs
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Sets desktop wallpaper using registry 2 TTPs 2 IoCs
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Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
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Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
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Enumerates system info in registry 2 TTPs 3 IoCs
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Modifies Control Panel 2 IoCs
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Modifies registry class 5 IoCs
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious behavior: RenamesItself 26 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
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Suspicious use of SetWindowsHookEx 13 IoCs
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Suspicious use of WriteProcessMemory 11 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\1\0fb86a8ba8fdf57990c283080a671c1320cbcdfd0e8b5f5a250d9c38a6fce305.exe"C:\Users\Admin\AppData\Local\Temp\1\0fb86a8ba8fdf57990c283080a671c1320cbcdfd0e8b5f5a250d9c38a6fce305.exe"1⤵
- Drops desktop.ini file(s)
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵
- Drops file in System32 directory
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C:\ProgramData\B3FF.tmp"C:\ProgramData\B3FF.tmp"2⤵
- Checks computer location settings
- Deletes itself
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\B3FF.tmp >> NUL3⤵
- System Location Discovery: System Language Discovery
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc1⤵
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C:\Windows\system32\printfilterpipelinesvc.exeC:\Windows\system32\printfilterpipelinesvc.exe -Embedding1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
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C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE/insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{E2F0BE68-523A-4D26-99B0-5BEFBD1F6EBD}.xps" 1336707583080800002⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
129B
MD5698e059303fe9949ad4d793a5b589dc3
SHA1cd0221fca707f35927f95eaf9394554a5d682099
SHA256b62d052e169c529941c12b1ca6fd343aebd5744d4e485538e539d7bccac3baf4
SHA512bcb3057a3cc88b03f9cb75126f9983f7851dd98f4d96ffe985f90ffd0adfec7b05b0c537fe4ac4c0476838b9ca60a5bf8fe111d65eb784793fc1594140d80bc4
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Filesize
1KB
MD5b570b29954b8c0d99fcce4196b1f5468
SHA1085eb3472769aed7613f7fab1b452e414a802085
SHA25696d5031d7d978ff2f95064f238411228f2d4cc23a666fb960effbeb5849e999f
SHA512c5cf2a48fc2e00f356eb3c24cb0a6e99905a2639aedaae0a566b163d109374fea3696b08fbe405ef4cec05361ac58e770a3dcb33c66f6d3fa62a60eb2c6836d6
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf
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Filesize
146KB
MD5574ce72297ceae58af356ce1a7ec20b1
SHA1f4142e7cd5bb4f63bfbfc10878be027d685d3a91
SHA256256fa037a8650bbea68ac1d946c724f728ae0757d3e367fa6b61d3ffaa543c61
SHA51230b2e9df8f63dbb80d1e5db04364846425336b9ed3d50b752c310f9770aa71e6dda3bf480d12636708e2a598d42f1524d27aae043eefafe8ba3dc87a7137a5ad
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Filesize
4KB
MD588b5e7b73b0f932cbea10f1ff39bfaa0
SHA19624686591fd012f572ec381fee026a81d46a3ff
SHA256c9c6219b131947694e89d7f4a352aaa1aecf3782c4edfb6c04505a97e8c329b8
SHA512ac462bf40a733653682459fa82eb194ff2d84afc945175b99bc8115d170930395f202413e24d667d11130e21c9534858cd5a5e2df1e9f1e22f69c970819faaed
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Filesize
129B
MD5c104415bba72f1319ead611cc28dc340
SHA1fdb0b4069f73a0b92cb54c8984f0634aaedb79ec
SHA256f404dd52301f60b148358d17c83f7732d9069f1cd54a39a427aac9b744e04895
SHA512b892c33a0f3e6ced88c3e80cab0f81ae6d13d0bf4a1a88eda663d47c034b3bf47bc39ac141f9e6f3e1de1d6e7dc81a403e6eecdd2bbb4a929152ba9b3ff406e2
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Filesize
64KB
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Filesize
64KB
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Filesize
64KB
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Filesize
64KB
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Filesize
64KB
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Filesize
64KB
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Filesize
64KB
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Filesize
64KB
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Filesize
64KB
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Filesize
64KB