Analysis
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max time kernel
121s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240215-en -
resource tags
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submitted
25-04-2024 03:19
General
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Target
Document.doc.scr.exe
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Size
194KB
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MD5
b7b4c97132d03eead1fa9a9352dee6c2
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SHA1
c9eb1bdc528076fa9c91668addf0723294ac1575
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SHA256
1ecea8b0bc92378bf2bdd1c14ae1628c573569419b91cc34504d2c3f8bb9f8b2
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SHA512
cb0023bc6783a94a27d2d4a67c214e8657fd334d1a94a7dba51277363dee2a67e7ecc5fc0788cead1c4e0e2dc7d9aa758203f89dce162184869d20a44d171903
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SSDEEP
3072:v6glyuxE4GsUPnliByocWepXKD0/9Wy1Og/ZK99r:v6gDBGpvEByocWehKD0/EWfg3
Malware Config
Signatures
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Renames multiple (334) 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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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 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.exe"C:\Users\Admin\AppData\Local\Temp\Document.doc.scr.exe"1⤵
- 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\2CDA.tmp"C:\ProgramData\2CDA.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\2CDA.tmp >> NUL3⤵
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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-1-5-21-2248906074-2862704502-246302768-1000\desktop.iniFilesize
129B
MD50dc085c9f6c6c475448fc1754e57f5ca
SHA107a3f0050bc87a31c5aa663f7bc2f08bc3158287
SHA25636cd24299edfa6c233fd67c0b8c615fcb1d2aaa211fc2f1865fde22ff23f0197
SHA512120a2226304a650c1c2f28e9b1433843a272483fc369f65a9c6ef2cfbcebd8eac1c29099c8e9a1bf6fda18678ce8787fb2618593466f49732a0a2716707987ae
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C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDDDDDFilesize
194KB
MD5b4aad222f52ef45c6f2c0a6d1a0c985a
SHA144252c681c94a987f4b54c638116e0c36dd09b09
SHA256090e0ab8c0b995b53a486e6c29dc09096beefb3aa41cf998060e65c5c34f7112
SHA512ae9c9ee97b736f5aa2d1e83432eddc817f42263f6e5e62b80b6e69e14cd73ac27193c46196dbaae48abadd074f04c3ea32af3f594909564cc45be98c9a1552c9
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C:\te8ZzuVLn.README.txtFilesize
434B
MD5ad29bd8c66e114ff57c943d16c78f72a
SHA15ab070ee89a36f38facae4dfc8ec5ce3e59af46e
SHA2566fe668fe8bf69158d1fd08e90f3cff60c1df410bf752635bf152853b6112549c
SHA512a53121e2379aa9c3bc52d073498a54f26383834f6d6636b4b3831010565c80bf0da07511907eab7bd92f9796e559958b1c0ebea4c4b0f0d869e95b7deb5da7f1
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F:\$RECYCLE.BIN\S-1-5-21-2248906074-2862704502-246302768-1000\DDDDDDDDDDDFilesize
129B
MD50f18411e27cd2d71386aa746ea93d3db
SHA1dbede3fc4bf31e540beb0e0024360a2ed625fd9d
SHA256b0e2592f6a881bbfbce4ccb5ccc1cf264167f9dc0a9f716bff07826513b408bd
SHA512d21464efca1c25cc965eaeeb3a9b5a08f8c96ad004b78ad724e3a3cced50a8e095c6f465719d5725166685cccc42ec1450a5d1324902587972e6d39fd5935304
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\ProgramData\2CDA.tmpFilesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf
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memory/1308-860-0x000000007EFA0000-0x000000007EFA1000-memory.dmpFilesize
4KB
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memory/1308-862-0x00000000022A0000-0x00000000022E0000-memory.dmpFilesize
256KB
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memory/1308-868-0x000000007EF80000-0x000000007EF81000-memory.dmpFilesize
4KB
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memory/1308-870-0x000000007EF20000-0x000000007EF21000-memory.dmpFilesize
4KB
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memory/1308-892-0x000000007EF40000-0x000000007EF41000-memory.dmpFilesize
4KB
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memory/1308-893-0x000000007EF60000-0x000000007EF61000-memory.dmpFilesize
4KB
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memory/2072-0-0x0000000000320000-0x0000000000360000-memory.dmpFilesize
256KB