Analysis
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max time kernel
120s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
21-01-2025 02:26
Static task
static1
Behavioral task
behavioral1
Sample
2025-01-21_04d6830a22f71714baeec3bb406276b7_avoslocker_cobalt-strike_luca-stealer_wapomi.exe
Resource
win7-20240903-en
General
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Target
2025-01-21_04d6830a22f71714baeec3bb406276b7_avoslocker_cobalt-strike_luca-stealer_wapomi.exe
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Size
395KB
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MD5
04d6830a22f71714baeec3bb406276b7
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SHA1
6dc77b029df0c984f323f743817987894ad5e440
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SHA256
17941b01a96b55c9c45ba56839cc62ba349a8b44bb5a2d6ee8bd2e6975bb0a8a
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SHA512
1e90afd2d7f6c4154b653fa18d00e40a32b5d9e78e65a80903fe66a2dda09d25ef3616384c3ecd7960e35ab9b83d11951ca9336519d4d7064e45bad1534c49eb
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SSDEEP
12288:wT9GthZLYM+ZIwjRhY6EidkiKJh44zNmb/uEpApx:wskEirKc4zAb4x
Malware Config
Extracted
bdaejec
ddos.dnsnb8.net
Signatures
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Bdaejec family
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Detects Bdaejec Backdoor. 2 IoCs
Bdaejec is backdoor written in C++.
resource yara_rule behavioral1/memory/2072-12-0x0000000000270000-0x0000000000279000-memory.dmp family_bdaejec_backdoor behavioral1/memory/2072-49-0x0000000000270000-0x0000000000279000-memory.dmp family_bdaejec_backdoor -
resource yara_rule behavioral1/files/0x0007000000012117-2.dat aspack_v212_v242 behavioral1/memory/1680-11-0x0000000000030000-0x0000000000039000-memory.dmp aspack_v212_v242 -
Executes dropped EXE 1 IoCs
pid Process 2072 wtkjeg.exe -
Loads dropped DLL 2 IoCs
pid Process 1680 2025-01-21_04d6830a22f71714baeec3bb406276b7_avoslocker_cobalt-strike_luca-stealer_wapomi.exe 1680 2025-01-21_04d6830a22f71714baeec3bb406276b7_avoslocker_cobalt-strike_luca-stealer_wapomi.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\XLICONS.EXE wtkjeg.exe File opened for modification C:\Program Files (x86)\Windows Mail\wab.exe wtkjeg.exe File opened for modification C:\Program Files\7-Zip\Uninstall.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\jmc.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\bin\ssvagent.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jre7\bin\jp2launcher.exe wtkjeg.exe File opened for modification C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateOnDemand.exe wtkjeg.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\GRAPH.EXE wtkjeg.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\MSACCESS.EXE wtkjeg.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\orbd.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\serialver.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\bin\unpack200.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jre7\bin\ktab.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\policytool.exe wtkjeg.exe File opened for modification C:\Program Files\Microsoft Games\Solitaire\Solitaire.exe wtkjeg.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\reader_sl.exe wtkjeg.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\OUTLOOK.EXE wtkjeg.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\MSOHTMED.EXE wtkjeg.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\NAMECONTROLSERVER.EXE wtkjeg.exe File opened for modification C:\Program Files (x86)\Windows Mail\WinMail.exe wtkjeg.exe File opened for modification C:\Program Files\Microsoft Games\Chess\Chess.exe wtkjeg.exe File opened for modification C:\Program Files\Microsoft Games\FreeCell\FreeCell.exe wtkjeg.exe File opened for modification C:\Program Files\Microsoft Games\Multiplayer\Spades\shvlzm.exe wtkjeg.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\excelcnv.exe wtkjeg.exe File opened for modification C:\Program Files\Mozilla Firefox\firefox.exe wtkjeg.exe File opened for modification C:\Program Files\Windows Journal\PDIALOG.exe wtkjeg.exe File opened for modification C:\Program Files\Windows Sidebar\sidebar.exe wtkjeg.exe File opened for modification C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateCore.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\jvisualvm.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\kinit.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jre7\bin\rmiregistry.exe wtkjeg.exe File opened for modification C:\Program Files\Microsoft Games\Multiplayer\Checkers\chkrzm.exe wtkjeg.exe File opened for modification C:\Program Files (x86)\Google\Update\Download\{8A69D345-D564-463C-AFF1-A69D9E530F96}\106.0.5249.119\chrome_installer.exe wtkjeg.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\VPREVIEW.EXE wtkjeg.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\Wordconv.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\java.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\javaws.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jre7\bin\unpack200.exe wtkjeg.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroTextExtractor.exe wtkjeg.exe File opened for modification C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleCrashHandler64.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\bin\rmiregistry.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\bin\tnameserv.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\lib\nbexec.exe wtkjeg.exe File opened for modification C:\Program Files\Microsoft Games\Multiplayer\Backgammon\bckgzm.exe wtkjeg.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\POWERPNT.EXE wtkjeg.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE wtkjeg.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\javadoc.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\jconsole.exe wtkjeg.exe File opened for modification C:\Program Files\Microsoft Games\SpiderSolitaire\SpiderSolitaire.exe wtkjeg.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe wtkjeg.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AdobeCollabSync.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\javac.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\jsadebugd.exe wtkjeg.exe File opened for modification C:\Program Files\Mozilla Firefox\maintenanceservice.exe wtkjeg.exe File opened for modification C:\Program Files\Mozilla Firefox\plugin-container.exe wtkjeg.exe File opened for modification C:\Program Files\Windows Journal\Journal.exe wtkjeg.exe File opened for modification C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateBroker.exe wtkjeg.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\INFOPATH.EXE wtkjeg.exe File opened for modification C:\Program Files (x86)\Mozilla Maintenance Service\Uninstall.exe wtkjeg.exe File opened for modification C:\Program Files\Google\Chrome\Application\106.0.5249.119\chrome_pwa_launcher.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\bin\java-rmi.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jdk1.7.0_80\jre\bin\pack200.exe wtkjeg.exe File opened for modification C:\Program Files\Java\jre7\bin\rmid.exe wtkjeg.exe File opened for modification C:\Program Files\Microsoft Games\Minesweeper\MineSweeper.exe wtkjeg.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 2025-01-21_04d6830a22f71714baeec3bb406276b7_avoslocker_cobalt-strike_luca-stealer_wapomi.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language wtkjeg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1680 wrote to memory of 2072 1680 2025-01-21_04d6830a22f71714baeec3bb406276b7_avoslocker_cobalt-strike_luca-stealer_wapomi.exe 31 PID 1680 wrote to memory of 2072 1680 2025-01-21_04d6830a22f71714baeec3bb406276b7_avoslocker_cobalt-strike_luca-stealer_wapomi.exe 31 PID 1680 wrote to memory of 2072 1680 2025-01-21_04d6830a22f71714baeec3bb406276b7_avoslocker_cobalt-strike_luca-stealer_wapomi.exe 31 PID 1680 wrote to memory of 2072 1680 2025-01-21_04d6830a22f71714baeec3bb406276b7_avoslocker_cobalt-strike_luca-stealer_wapomi.exe 31 PID 2072 wrote to memory of 2888 2072 wtkjeg.exe 33 PID 2072 wrote to memory of 2888 2072 wtkjeg.exe 33 PID 2072 wrote to memory of 2888 2072 wtkjeg.exe 33 PID 2072 wrote to memory of 2888 2072 wtkjeg.exe 33
Processes
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C:\Users\Admin\AppData\Local\Temp\2025-01-21_04d6830a22f71714baeec3bb406276b7_avoslocker_cobalt-strike_luca-stealer_wapomi.exe"C:\Users\Admin\AppData\Local\Temp\2025-01-21_04d6830a22f71714baeec3bb406276b7_avoslocker_cobalt-strike_luca-stealer_wapomi.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1680 -
C:\Users\Admin\AppData\Local\Temp\wtkjeg.exeC:\Users\Admin\AppData\Local\Temp\wtkjeg.exe2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2072 -
C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\64f20caf.bat" "3⤵
- System Location Discovery: System Language Discovery
PID:2888
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\WUBCGJ0A\k2[1].rar
Filesize4B
MD5d3b07384d113edec49eaa6238ad5ff00
SHA1f1d2d2f924e986ac86fdf7b36c94bcdf32beec15
SHA256b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c
SHA5120cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6
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Filesize
187B
MD5ff4eea2975a728d3d64dd870334f5940
SHA1aca4e86b926ccb85f6e1eeaedf817e5255f76543
SHA2569bee88930aa046b4b4db7db8107770f2639bfdb4dff6381c71165f69322640cf
SHA5120de4bae1e498254088d66b9c104464842a979018b86d564e4a36cb4fd102a6cdccbdec3103fce9a10879ec1c1a0c317f7600458efd85079548c2fe976f0313a9
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Filesize
4B
MD520879c987e2f9a916e578386d499f629
SHA1c7b33ddcc42361fdb847036fc07e880b81935d5d
SHA2569f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31
SHA512bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f
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Filesize
15KB
MD556b2c3810dba2e939a8bb9fa36d3cf96
SHA199ee31cd4b0d6a4b62779da36e0eeecdd80589fc
SHA2564354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07
SHA51227812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e