Resubmissions
09-08-2024 21:57
240809-1t1vfs1cpm 1006-08-2024 13:01
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240806-pmc92ashlh 10Analysis
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max time kernel
145s -
max time network
134s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
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submitted
06-08-2024 12:29
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 (630) 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\D727.tmp"C:\ProgramData\D727.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\D727.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\{FB1192A2-7FD4-4F9F-9CC4-1E7B6FD1B1BA}.xps" 1336742104794500002⤵
- 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
MD5db4b828750803c01d5d9deec3077159e
SHA1221ad2134d0c02fc78fa1871f6d04857ae2dd9fc
SHA2566ab7de945ad079fb61a419926c9138a434eedfcd66e2e89f6ef9084c42d1a0f4
SHA512fece8a13640d7b3c21c242433418b292544e59735339a65e951b0ea6f49ec8902ce6b39c9a590624d8f2bc781e1c8a2248d15a1956ab28746ee8d7c1dd0ff9ca
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Filesize
1KB
MD57813f47661c4cf4d3f10c89c4934956f
SHA1451121257d26141ca6ed97833dd2132cec37e57f
SHA256249645b90aa106503da98df79c39b60563c5273632be4d24474de86eacbf3450
SHA5129d39c03e10f4172c884d1b3c803b7538e19c4fcfc8e329e51d6ef41cfbd1f0f3a6c2bb928c3f3364e6acc9c0a1ed018b32499ba05447964a412a22d33fcf979c
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf
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Filesize
146KB
MD524aa462b27d6855934108d477672d267
SHA15259db5446636093eda3f95701a9d29b0dac9373
SHA256d024834fa42c4c8c2499b7e9205589c633e3d01a14c13b6116e1a7c1cd29798a
SHA512bf6c43cb595d31a27e024cf2b84e2302e3ac52167b964393ac9f6b5db0a838b1f743217672871f180e90b067ded0b77d8cb2a5587d2c18a49fcca28b7e518ce1
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Filesize
4KB
MD584d7551ea64c92d51ddaace443a71002
SHA12a58321ca80b8879a54f2e33b629ca15df58fdc8
SHA256e01c59c015a97da1b3b7dfc12c9c6fe1fdfcecaf6d02eee2c7208e8012b92375
SHA512b75eb889d72fe3ba40f91d0ec94c5bc02950db047b1c864b37368476e3c089befc97b11e3c32b1d5fe719bb8dfe0982f8a2b79160bd13f03d297272e9b3be62f
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Filesize
129B
MD524b2347244bf96f15afd63e92dd4565f
SHA17bdd5be54a9262a67cfb72752f0eb0ff33feb4af
SHA256de3dde10b9a2992f590d4b32ea3a51d52ac64a4775c3763f64b455e45e7fbceb
SHA5122249de9487e9af6b101638f35e332a3cfda4fbe6b4c5823e9fd3161d213db7b53877764d33734f484c650b14659251934009ef53505b02537d79ea455f4e1dc5
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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