Resubmissions
30-04-2024 10:29
240430-mjb7fshh74 1026-04-2024 02:29
240426-cytpyahd23 1026-04-2024 02:23
240426-cvm3zshc82 1025-04-2024 03:51
240425-eekn2aeg39 10Analysis
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max time kernel
121s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
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submitted
30-04-2024 10:29
General
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Target
Document.doc.scr
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Size
194KB
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MD5
50e5dec57451005668704281688ca55d
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SHA1
67dd4ac7eb8c193b39149b34d3a0d5bc21c3f200
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SHA256
062683257386c9e41a1cd1493f029d817445c37f7c65386d54122fa466419ce1
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SHA512
29ca4a44795c71d3e2b4e3417355ebb93765157d464d6d5a3fe6774056d934d57081c72001fb29e47982da11e5a5ccfdbcc958d05a11fb49bd8bf84e6d0c61ad
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SSDEEP
3072:66glyuxE4GsUPnliByocWepRGbVZqid91h2ys+tU:66gDBGpvEByocWeubV4inP9B
Malware Config
Signatures
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Renames multiple (371) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Deletes itself 1 IoCs
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Executes dropped EXE 1 IoCs
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Loads dropped DLL 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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Sets desktop wallpaper using registry 2 TTPs 2 IoCs
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Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
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Modifies Control Panel 2 IoCs
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Modifies registry class 5 IoCs
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Opens file in notepad (likely ransom note) 1 IoCs
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Suspicious behavior: EnumeratesProcesses 14 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 WriteProcessMemory 9 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Document.doc.scr"C:\Users\Admin\AppData\Local\Temp\Document.doc.scr" /S1⤵
- Loads dropped DLL
- Drops desktop.ini file(s)
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\ProgramData\3D10.tmp"C:\ProgramData\3D10.tmp"2⤵
- Deletes itself
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- 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\3D10.tmp >> NUL3⤵
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\Qs2QSInbk.README.txt1⤵
- Opens file in notepad (likely ransom note)
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x14c1⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\$Recycle.Bin\S-1-5-21-2721934792-624042501-2768869379-1000\desktop.iniFilesize
129B
MD5143132cff3fe56d2afc285ea86fc51ab
SHA1005b6965f48e563f818e2470f563cd5d7a542516
SHA256f4ce594c53eb8bdf37f352888a47693b3078ad5c92869edfcee9f9b92ee88b06
SHA512855d35f154e94d17b7cde5455935c1278f21f934a8d658978a907f2f8745ee8f2dc63b6d0c6d8e5d78aaade0160af9c01f7783abfab3ae5f493a19045ec3e6fb
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C:\Qs2QSInbk.README.txtFilesize
434B
MD5ad29bd8c66e114ff57c943d16c78f72a
SHA15ab070ee89a36f38facae4dfc8ec5ce3e59af46e
SHA2566fe668fe8bf69158d1fd08e90f3cff60c1df410bf752635bf152853b6112549c
SHA512a53121e2379aa9c3bc52d073498a54f26383834f6d6636b4b3831010565c80bf0da07511907eab7bd92f9796e559958b1c0ebea4c4b0f0d869e95b7deb5da7f1
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C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDFilesize
194KB
MD55336b314e0dd92ae499e04f1cd016099
SHA174b1b46d886f0048378387f176e327f5f7155610
SHA256b9d9510edba1a9fc362a6f18d54dac87c2631f0e6793c41250e6ab82ccc70741
SHA51264d774175f6476a26c440df6999a81d9e6f35be0529db60ffdae05059c4e5483aa68ff5dd4ae095d003394e26fee4a0e071dff32a3909448fe2fddaf332872bf
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F:\$RECYCLE.BIN\S-1-5-21-2721934792-624042501-2768869379-1000\DDDDDDDDDDDFilesize
129B
MD5e7d1f53c9da11154a87b7f7384cca40d
SHA129cde883e0b569b1053b2aa5b7cbde4080e387b4
SHA2569fce5ffd424602e5e8882281fd57db2e977e4233a650a689b6a7e452f37a0d64
SHA512e75d9b30c54e516b57ddcbe095180eb7db4cbe957e5cd4b627abb8ed050f2698f6081a37f9dc7395075b78125b55b5ab512728de6a36a61528fe930dc6755504
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\ProgramData\3D10.tmpFilesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf
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memory/1720-0-0x0000000000D30000-0x0000000000D70000-memory.dmpFilesize
256KB
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memory/2364-900-0x000000007EF80000-0x000000007EF81000-memory.dmpFilesize
4KB
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memory/2364-899-0x0000000002320000-0x0000000002360000-memory.dmpFilesize
256KB
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memory/2364-898-0x0000000002320000-0x0000000002360000-memory.dmpFilesize
256KB
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memory/2364-897-0x000000007EFA0000-0x000000007EFA1000-memory.dmpFilesize
4KB
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memory/2364-901-0x000000007EF20000-0x000000007EF21000-memory.dmpFilesize
4KB
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memory/2364-931-0x000000007EF60000-0x000000007EF61000-memory.dmpFilesize
4KB
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memory/2364-930-0x000000007EF40000-0x000000007EF41000-memory.dmpFilesize
4KB