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
-
max time kernel
124s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
-
submitted
26-04-2024 02:23
General
-
Target
Document.doc.scr
-
Size
194KB
-
MD5
50e5dec57451005668704281688ca55d
-
SHA1
67dd4ac7eb8c193b39149b34d3a0d5bc21c3f200
-
SHA256
062683257386c9e41a1cd1493f029d817445c37f7c65386d54122fa466419ce1
-
SHA512
29ca4a44795c71d3e2b4e3417355ebb93765157d464d6d5a3fe6774056d934d57081c72001fb29e47982da11e5a5ccfdbcc958d05a11fb49bd8bf84e6d0c61ad
-
SSDEEP
3072:66glyuxE4GsUPnliByocWepRGbVZqid91h2ys+tU:66gDBGpvEByocWeubV4inP9B
Malware Config
Signatures
-
Renames multiple (344) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
Deletes itself 1 IoCs
-
Executes dropped EXE 1 IoCs
-
Loads dropped DLL 1 IoCs
-
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Drops desktop.ini file(s) 2 IoCs
-
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
-
Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Modifies Control Panel 2 IoCs
-
Modifies registry class 5 IoCs
-
Opens file in notepad (likely ransom note) 1 IoCs
-
Suspicious behavior: EnumeratesProcesses 14 IoCs
-
Suspicious behavior: RenamesItself 26 IoCs
-
Suspicious use of AdjustPrivilegeToken 64 IoCs
-
Suspicious use of SetWindowsHookEx 2 IoCs
-
Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
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
-
C:\ProgramData\B78C.tmp"C:\ProgramData\B78C.tmp"2⤵
- Deletes itself
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\B78C.tmp >> NUL3⤵
-
-
-
C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\Qs2QSInbk.README.txt1⤵
- Opens file in notepad (likely ransom note)
-
C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x1541⤵
-
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" C:\Users\Admin\Desktop\CompleteRegister.mp3.Qs2QSInbk1⤵
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
129B
MD542d5bf034de17f0defb856baa0f40442
SHA127e438c265402a2b16a4a21718da2ff9f7c354d3
SHA256d9bf0d657be70a2921b088e93e0f961ccc05234cbf7d2d78f12838249e83ce8d
SHA512ddc51deabe12edddf92f158b5f027a9689f5cc79b432e6a75bf620378c7fe8a63e11d643a27880baa33ba4492e467ecaf3397e05c80a93a3698da75d771326a0
-
Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf
-
Filesize
434B
MD5ad29bd8c66e114ff57c943d16c78f72a
SHA15ab070ee89a36f38facae4dfc8ec5ce3e59af46e
SHA2566fe668fe8bf69158d1fd08e90f3cff60c1df410bf752635bf152853b6112549c
SHA512a53121e2379aa9c3bc52d073498a54f26383834f6d6636b4b3831010565c80bf0da07511907eab7bd92f9796e559958b1c0ebea4c4b0f0d869e95b7deb5da7f1
-
Filesize
194KB
MD5f76326535c7c1736dabe3bef2578dc2f
SHA10e4bb7867fb35c784753a0934eced183122236c9
SHA25650e0445d4352bec7c1970dfe178a6daf03d349ece9576bfe73c75201e7b9aea6
SHA512643af28000a4b53280e39c8828b252daf1200b7e6bef5d9fa1a2b2665d9fecb36fb9bdaa4872149de1b9c08af61ded235f6f8256d19a3fb5032eb79f137348ff
-
Filesize
3KB
MD5e3ba2523688201c8532d8e10616fc9c8
SHA1ce87044533bfba01964c823d030c94dba9275296
SHA256021e9f65ad7021b2500493814035a2e06e5546dad45c66f20d5f129e44b786bc
SHA5125b319450c56f29a94e820952679069db1b304d2cdc7beac70a6e1fab211b0972bd7b170a6b4d34af43a6d1dd4caee440585cf9b45460eaffea7c110d76159133
-
Filesize
824KB
MD5a8df9dcbe90d4394f5b3ddef57a61a41
SHA15781ae8557b64fd7013768499fa196bf6107d856
SHA256f3a838080312bc5ad94664b12561c84d074b45dd6d50af539c5bb8340371ed0c
SHA5123d1b245876bfbd59eefd0b8ecb810bf4b148e21423d763b42dfd791c0f1e2baba7844a64b353427593af22833da336eb39e847c762a6620d4f2e18019f4957a6
-
Filesize
129B
MD5e69db227ccb389d8098c0aa44d727fd2
SHA1b06a4e7e9da7aec38d050c9af412b6676f1d1d25
SHA25655f1336b0bfb02ca9ca319ca0e0efef7de2e9c9052fba98c744e9ed0d5f34e6d
SHA512e536cf82a0ab1226b5d0ae14a7744d8c151e8518539821fa73791a625451e63c0cbd0a88c0b6803d7da1fd9d87a9408f5e7e63627c6d9d0f5711f735785259a7
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
256KB
-
Filesize
4KB
-
Filesize
256KB