Analysis
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max time kernel
149s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
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submitted
02-08-2024 18:52
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 (638) 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\BBDF.tmp"C:\ProgramData\BBDF.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\BBDF.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\{3A6192AF-9F9B-4A9C-9ED3-CFD1CA437255}.xps" 1336709840498200002⤵
- 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
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Downloads
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Filesize
129B
MD5436521f9fb5c4e1166c345a41ca9044b
SHA1a30ff355c55831a037ad4f39db57dba071678847
SHA256d1d907e792e88b6ed3a6aca2cc506b9b5476611f637bf8534094b31e0e182386
SHA512cbd3ba782b5ff1e80f281e29721202bd199db9f06d986821b488a311f6ff3325c281af5bc672f66097243706657fa870031586cd884c87bfd4ff563b681f0fb0
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Filesize
1KB
MD5ce7c4f45b1fbc29a5a8c091e9bf016bb
SHA18c8ab77395e32194158533f3fb9ece15994f96de
SHA256b095c1aa73b9281a93e2f26d96374bac6b8feafd893f2f4427d71db3f64d304a
SHA5127b4de97586fa51d7575f2bc638e3513e45e671aca1a5c6f1578f5838b70c90aa9c7fc501819a5b81aa33f0e5401300d466d40a055a1898d362b817e0208e5473
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf
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Filesize
146KB
MD5a44656549cd1ba36d7d978730d2f2a66
SHA1cee592fec1b3ff3ca8ffaa127da57adb0d7e4a68
SHA256da3052c915846805ee6224690bf6f0955b533e7b6b4a0c63b70a434f90852912
SHA512d40db0a82b6d42da92fd418a67480da1825ded4497b45e6497b4227da3c7e5bc011de29372b157d50674a816d9bdabfda77796a90ed5eb4a706a59593f73a7d0
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Filesize
4KB
MD5bf28821405cbdd5536c21d0ec2b29ca9
SHA1993799388201dad1e8868893fc83e2a3b9709ea0
SHA2562d14bf83fa3e216ba306ff3c3594c3388d012a869b334fb0802b9c09dbdc3189
SHA512c794a6af9909ae21204d2fe6b3a03056685b3a4e0bb44c8d20a3b322f04b9514825032eff5040de57833ec7fb2f0e227ab7cef6fc4971a3c2749a532c207d9b2
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Filesize
4KB
MD5ec18682dd18106b2db77fab393fbee2b
SHA187eb65ed94847000e3896187c168d86b7987555c
SHA25625f21e51c4cf827aa5ed05b580ac3229774aac893ee4b246e453c61c54c6480b
SHA512018683d2f0e1e41c58a185609578e5b3c6a69e821dc6aca3417a731ff2847030a0bbe241688854d51ae5a07fb2dc1294d99f3421cc9e3e3cc9adea6342f560af
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Filesize
129B
MD515d006308b24bed88e5c4ae05796c1e8
SHA1765930f2b28f36064e187345ba4f3a33b2d90a63
SHA25604397ef0feaa11611159f812610eacc8c55ca255c7f73eeb93e79f805a54a48e
SHA512cba729af71e3b41f08230cdb26d7cc88b71d4363e602ea515555675659b4507ff39a21d0114a1396a117c05667aa572daea2dcc36843cb98f3db45830aad3539
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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
-
Filesize
64KB
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Filesize
64KB
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Filesize
64KB