Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
11/05/2026, 14:18
Behavioral task
behavioral1
Sample
2026-05-11_ed15c826aa90769c7ee8d0de618a1166_akira_amadey_cobalt-strike_elex_hijackloader_icedid_luca.exe
Resource
win10v2004-20260130-en
windows10-2004-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-05-11_ed15c826aa90769c7ee8d0de618a1166_akira_amadey_cobalt-strike_elex_hijackloader_icedid_luca.exe
Resource
win11-20260130-en
windows11-21h2-x64
9 signatures
150 seconds
General
- Target 2026-05-11_ed15c826aa90769c7ee8d0de618a1166_akira_amadey_cobalt-strike_elex_hijackloader_icedid_luca.exe
- Size 10.1MB
- Sample260511-rmgnkacs2z
- SHA256 9ab1b5f6c0786c2afb03c4b2332db3ce8ea45a9c98e16bcf404c409fbc5d71b5
- MD5 ed15c826aa90769c7ee8d0de618a1166
- SHA1 a8515fa83a27f370fe615d69054b9f8e22222227
- SHA512 d20873bd173f3f93c818ce0c1dde5bf6318ee7e2ad247093523247eb4fd71739f03675193f95a3dcf8d36526d71a79171daba87befeb818cf7fdaa1a9208e516
- SSDEEP 98304:mRPRRdXddmi78gkwodIo6qzBPxNSslf5maDjo:mFRnXdUyqzBHzoano
- TLSH T1D5B60911B5A88FA9C06FD074C98265A69A333C464F319FCF0580BE293E766E55E3532F
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
Malware Config
Signatures
- Detects Fesber payload 13 IoCs
resource yara_rule behavioral1/files/0x001a0000000241f3-3.dat family_fesber behavioral1/files/0x0003000000022b7e-19.dat family_fesber behavioral1/memory/1688-519-0x0000000000400000-0x000000000041B000-memory.dmp family_fesber behavioral1/memory/1688-1270-0x0000000000400000-0x000000000041B000-memory.dmp family_fesber behavioral1/memory/1688-1983-0x0000000000400000-0x000000000041B000-memory.dmp family_fesber behavioral1/memory/1688-2244-0x0000000000400000-0x000000000041B000-memory.dmp family_fesber behavioral1/memory/1688-2246-0x0000000000400000-0x000000000041B000-memory.dmp family_fesber behavioral1/memory/1688-2248-0x0000000000400000-0x000000000041B000-memory.dmp family_fesber behavioral1/memory/1688-2250-0x0000000000400000-0x000000000041B000-memory.dmp family_fesber behavioral1/memory/1688-2254-0x0000000000400000-0x000000000041B000-memory.dmp family_fesber behavioral1/memory/1688-2260-0x0000000000400000-0x000000000041B000-memory.dmp family_fesber behavioral1/memory/1688-2262-0x0000000000400000-0x000000000041B000-memory.dmp family_fesber behavioral1/memory/1688-2264-0x0000000000400000-0x000000000041B000-memory.dmp family_fesber - Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "Explorer.exe fsb.exe" tmp240650062.exe - Executes dropped EXE 2 IoCs
pid Process 1688 tmp240650062.exe 4744 tmp240650093.exe - Drops file in System32 directory 3 IoCs
description ioc Process File created C:\Windows\SysWOW64\fsb.stb tmp240650062.exe File created C:\Windows\SysWOW64\fsb.tmp tmp240650062.exe File opened for modification C:\Windows\SysWOW64\fsb.tmp tmp240650062.exe -
resource yara_rule behavioral1/memory/700-0-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/700-11-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/files/0x0003000000022b7e-19.dat upx - Drops file in Program Files directory 64 IoCs
description ioc Process File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroBroker.exe tmp240650062.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrServicesUpdater.exe- tmp240650062.exe File created C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\msedge.exe tmp240650062.exe File created C:\Program Files\Common Files\microsoft shared\Source Engine\OSE.EXE- tmp240650062.exe File created C:\Program Files\Java\jdk-1.8\bin\extcheck.exe- tmp240650062.exe File created C:\Program Files\Java\jdk-1.8\bin\java-rmi.exe- tmp240650062.exe File created C:\Program Files\Java\jdk-1.8\bin\jmap.exe tmp240650062.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\java-rmi.exe- tmp240650062.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\pack200.exe tmp240650062.exe File created C:\Program Files\Microsoft Office\root\Office16\POWERPNT.EXE tmp240650062.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\pack200.exe- tmp240650062.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\reader_sl.exe- tmp240650062.exe File created C:\Program Files (x86)\Microsoft\EdgeCore\139.0.3405.125\msedge_proxy.exe tmp240650062.exe File created C:\Program Files\Common Files\microsoft shared\OFFICE16\LICLUA.EXE tmp240650062.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\klist.exe tmp240650062.exe File created C:\Program Files\Java\jre-1.8\bin\javaw.exe- tmp240650062.exe File created C:\Program Files\Microsoft Office\root\Office16\GRAPH.EXE- tmp240650062.exe File created C:\Program Files\Microsoft Office\root\Office16\MSOUC.EXE- tmp240650062.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\FullTrustNotifier.exe tmp240650062.exe File created C:\Program Files (x86)\Microsoft\EdgeCore\132.0.2957.140\notification_helper.exe tmp240650062.exe File created C:\Program Files\Java\jdk-1.8\bin\javafxpackager.exe tmp240650062.exe File created C:\Program Files\Java\jre-1.8\bin\orbd.exe tmp240650062.exe File created C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedge_proxy.exe- tmp240650062.exe File created C:\Program Files\Java\jdk-1.8\bin\jar.exe tmp240650062.exe File created C:\Program Files\Java\jdk-1.8\bin\unpack200.exe tmp240650062.exe File created C:\Program Files\VideoLAN\VLC\vlc-cache-gen.exe tmp240650062.exe File created C:\Program Files\VideoLAN\VLC\vlc.exe tmp240650062.exe File created C:\Program Files\Java\jdk-1.8\bin\jjs.exe- tmp240650062.exe File created C:\Program Files\Java\jdk-1.8\bin\jsadebugd.exe- tmp240650062.exe File created C:\Program Files\Java\jdk-1.8\bin\jstat.exe tmp240650062.exe File created C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\MSOHTMED.EXE- tmp240650062.exe File created C:\Program Files (x86)\Microsoft\EdgeCore\132.0.2957.140\pwahelper.exe- tmp240650062.exe File created C:\Program Files\Common Files\microsoft shared\MSInfo\msinfo32.exe tmp240650062.exe File created C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\EQUATION\eqnedt32.exe tmp240650062.exe File created C:\Program Files (x86)\Microsoft\EdgeUpdate_disable\Install\{B6A73AB1-30BD-4092-AEB0-C52DA4776C17}\MicrosoftEdge_X64_139.0.3405.125.exe- tmp240650062.exe File created C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\cookie_exporter.exe tmp240650062.exe File created C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\msedge_proxy.exe tmp240650062.exe File created C:\Program Files\Microsoft Office\root\Integration\Addons\OneDriveSetup.exe tmp240650062.exe File created C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE- tmp240650062.exe File created C:\Program Files (x86)\Microsoft\EdgeCore\139.0.3405.125\msedge_pwa_launcher.exe- tmp240650062.exe File created C:\Program Files\7-Zip\7zFM.exe- tmp240650062.exe File created C:\Program Files\Google\Chrome\Application\chrome.exe tmp240650062.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\rmiregistry.exe tmp240650062.exe File created C:\Program Files\Common Files\microsoft shared\MSInfo\msinfo32.exe- tmp240650062.exe File created C:\Program Files\Java\jdk-1.8\bin\jar.exe- tmp240650062.exe File created C:\Program Files\Java\jdk-1.8\jre\bin\keytool.exe- tmp240650062.exe File created C:\Program Files\Java\jre-1.8\bin\javacpl.exe- tmp240650062.exe File created C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.DBConnection64.exe- tmp240650062.exe File created C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\chrmstp.exe tmp240650062.exe File created C:\Program Files\Java\jre-1.8\bin\policytool.exe tmp240650062.exe File created C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.exe tmp240650062.exe File created C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\Installer\setup.exe tmp240650062.exe File created C:\Program Files (x86)\Microsoft\EdgeUpdate_bk\1.3.147.37\MicrosoftEdgeUpdateCore.exe- tmp240650062.exe File created C:\Program Files\Google\Chrome\Application\chrome_proxy.exe tmp240650062.exe File created C:\Program Files\Java\jdk-1.8\bin\jps.exe- tmp240650062.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe tmp240650062.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\ADelRCP.exe tmp240650062.exe File created C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\LogTransport2.exe- tmp240650062.exe File created C:\Program Files (x86)\Microsoft\EdgeWebView\Application\132.0.2957.140\cookie_exporter.exe- tmp240650062.exe File created C:\Program Files (x86)\Mozilla Maintenance Service\Uninstall.exe- tmp240650062.exe File created C:\Program Files\Common Files\microsoft shared\ink\TabTip.exe- tmp240650062.exe File created C:\Program Files\Java\jre-1.8\bin\java-rmi.exe tmp240650062.exe File created C:\Program Files\Microsoft Office\root\Office16\msotd.exe tmp240650062.exe File created C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOICONS.EXE tmp240650062.exe - System Location Discovery: System Language Discovery 1 TTPs 2 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 2026-05-11_ed15c826aa90769c7ee8d0de618a1166_akira_amadey_cobalt-strike_elex_hijackloader_icedid_luca.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language tmp240650062.exe - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 700 wrote to memory of 1688 700 2026-05-11_ed15c826aa90769c7ee8d0de618a1166_akira_amadey_cobalt-strike_elex_hijackloader_icedid_luca.exe 85 PID 700 wrote to memory of 4744 700 2026-05-11_ed15c826aa90769c7ee8d0de618a1166_akira_amadey_cobalt-strike_elex_hijackloader_icedid_luca.exe 86
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-11_ed15c826aa90769c7ee8d0de618a1166_akira_amadey_cobalt-strike_elex_hijackloader_icedid_luca.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-11_ed15c826aa90769c7ee8d0de618a1166_akira_amadey_cobalt-strike_elex_hijackloader_icedid_luca.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:700 -
C:\Users\Admin\AppData\Local\Temp\tmp240650062.exeC:\Users\Admin\AppData\Local\Temp\tmp240650062.exe2⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:1688
-
-
C:\Users\Admin\AppData\Local\Temp\tmp240650093.exeC:\Users\Admin\AppData\Local\Temp\tmp240650093.exe2⤵
- Executes dropped EXE
PID:4744
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Program Files\7-Zip\7z.exe
- Size 10.1MB
- SHA256 9ab1b5f6c0786c2afb03c4b2332db3ce8ea45a9c98e16bcf404c409fbc5d71b5
- MD5 ed15c826aa90769c7ee8d0de618a1166
- SHA1 a8515fa83a27f370fe615d69054b9f8e22222227
- SHA512 d20873bd173f3f93c818ce0c1dde5bf6318ee7e2ad247093523247eb4fd71739f03675193f95a3dcf8d36526d71a79171daba87befeb818cf7fdaa1a9208e516
- SSDEEP 98304:mRPRRdXddmi78gkwodIo6qzBPxNSslf5maDjo:mFRnXdUyqzBHzoano
- TLSH T1D5B60911B5A88FA9C06FD074C98265A69A333C464F319FCF0580BE293E766E55E3532F
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\tmp240650062.exe
- Size 9.5MB
- SHA256 af9c0f9034a49150bcc64a612f0bbd111cf5b4fcd6e4e2ec59bbf3193c85f029
- MD5 25c1b054cca3b7a456ec2372d5fda7ab
- SHA1 368629ad7c223c18e4721cf76d08f4c094af9fe6
- SHA512 fa38cfb2eca94ec0aa2b1ae8f80cfa8e924cd719a361c0a7225bbf0893180f48f2f509cc98d0a7fc9f331b072e9a0c52806dc36ada7c378f324deed9dfbf3cfb
- SSDEEP 98304:IRPRRdXddmi78gkwodIo6qzBPxNSslf5ma:IFRnXdUyqzBHzoa
- TLSH T17EA6081175A88FA9C06FD074C98265A69A337C468F319FCF0580BE293E766E45E3532F
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\tmp240650093.exe
- Size 549KB
- SHA256 707f415d7d581edd9bce99a0429ad4629d3be0316c329e8b9ebd576f7ab50b71
- MD5 0b24892597dcb0257cdb78b5ed165218
- SHA1 5fe5d446406ff1e34d2fe3ee347769941636e323
- SHA512 24ea9e0f10a283e67850070976c81ae4b2d4d9bb92c6eb41b2557ad3ae02990287531a619cf57cd257011c6770d4c25dd19c3c0e46447eb4d0984d50d869e56f
- SSDEEP 6144:vXREiNYVLKZn56Vq2UjCpd0v5prE6v0GSxWUPZl1JP+1Lix7NGZIVuXQ82g4zrr8:vXZNYVLeyUji0h90ZD0wxpGZIVuKrHs
- TLSH T1C1C40916F6748335D073C0B9C5D2A68EE972308657308ACB4286D77C7E67BE6863A731
- MD5 SHA1 SHA512 SSDEEP TLSH