Analysis
- max time kernel
146s - max time network
119s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system - submitted
11/09/2024, 10:34
Static task
static1
Behavioral task
behavioral1
Sample
Confirmation.docx.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
Confirmation.docx.exe
Resource
win10v2004-20240802-en
General
- Target Confirmation.docx.exe
- Size 1.3MB
- Sample240911-ml4dqavglq
- SHA256 59640b32fd4e89cd138da35df35473a554da351660e7b654610642433135032c
- MD5 cc457c86d15ea18546d9065f5ca4ee04
- SHA1 66192064544af9b72ffd054ed8bde5aad95576c6
- SHA512 0580495ce9856d5094cddd439fa2d4063b5e78d0d1af926259c45c72bda3ec357243c537474b8c8c390a8fe500de19ce2b3271896c779dccd0ccf980357f909a
- SSDEEP 24576:ypCC3MJPg7zsOTpKwM4LNPprrwr6HSJAXv0E65vYZv/UdW3seBdZwq:hbg/Nhrsr6HSJSME6VXWzBkq
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
- Executes dropped EXE 10 IoCs
pid Process 5096 alpha.pif 4832 alpha.pif 4032 alpha.pif 5028 xpha.pif 2720 per.exe 1272 pha.pif 2476 alpha.pif 3236 alpha.pif 2304 alpha.pif 3120 rbzfnwyU.pif - Loads dropped DLL 1 IoCs
pid Process 2720 per.exe - Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook rbzfnwyU.pif Key opened \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook rbzfnwyU.pif Key opened \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook rbzfnwyU.pif - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Uywnfzbr = "C:\\Users\\Public\\Uywnfzbr.url" Confirmation.docx.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 788 set thread context of 3120 788 Confirmation.docx.exe 113 - System Location Discovery: System Language Discovery 1 TTPs 10 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 Confirmation.docx.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language alpha.pif Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language xpha.pif Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language alpha.pif Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language alpha.pif Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language alpha.pif Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language alpha.pif Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language alpha.pif Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rbzfnwyU.pif - System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 1096 esentutl.exe - Script User-Agent 2 IoCs
Uses user-agent string associated with script host/environment.
description flow ioc HTTP User-Agent header 24 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 30 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1272 pha.pif 1272 pha.pif - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1272 pha.pif Token: SeDebugPrivilege 3120 rbzfnwyU.pif - Suspicious use of WriteProcessMemory 44 IoCs
description pid Process procid_target PID 788 wrote to memory of 1612 788 Confirmation.docx.exe 93 PID 788 wrote to memory of 1612 788 Confirmation.docx.exe 93 PID 788 wrote to memory of 1612 788 Confirmation.docx.exe 93 PID 1612 wrote to memory of 840 1612 cmd.exe 95 PID 1612 wrote to memory of 840 1612 cmd.exe 95 PID 1612 wrote to memory of 840 1612 cmd.exe 95 PID 1612 wrote to memory of 1096 1612 cmd.exe 96 PID 1612 wrote to memory of 1096 1612 cmd.exe 96 PID 1612 wrote to memory of 1096 1612 cmd.exe 96 PID 1612 wrote to memory of 5096 1612 cmd.exe 97 PID 1612 wrote to memory of 5096 1612 cmd.exe 97 PID 1612 wrote to memory of 5096 1612 cmd.exe 97 PID 1612 wrote to memory of 4832 1612 cmd.exe 98 PID 1612 wrote to memory of 4832 1612 cmd.exe 98 PID 1612 wrote to memory of 4832 1612 cmd.exe 98 PID 1612 wrote to memory of 4032 1612 cmd.exe 99 PID 1612 wrote to memory of 4032 1612 cmd.exe 99 PID 1612 wrote to memory of 4032 1612 cmd.exe 99 PID 4032 wrote to memory of 5028 4032 alpha.pif 100 PID 4032 wrote to memory of 5028 4032 alpha.pif 100 PID 4032 wrote to memory of 5028 4032 alpha.pif 100 PID 1612 wrote to memory of 2720 1612 cmd.exe 103 PID 1612 wrote to memory of 2720 1612 cmd.exe 103 PID 2720 wrote to memory of 1780 2720 per.exe 104 PID 2720 wrote to memory of 1780 2720 per.exe 104 PID 2720 wrote to memory of 1272 2720 per.exe 106 PID 2720 wrote to memory of 1272 2720 per.exe 106 PID 1612 wrote to memory of 2476 1612 cmd.exe 108 PID 1612 wrote to memory of 2476 1612 cmd.exe 108 PID 1612 wrote to memory of 2476 1612 cmd.exe 108 PID 1612 wrote to memory of 3236 1612 cmd.exe 109 PID 1612 wrote to memory of 3236 1612 cmd.exe 109 PID 1612 wrote to memory of 3236 1612 cmd.exe 109 PID 1612 wrote to memory of 2304 1612 cmd.exe 110 PID 1612 wrote to memory of 2304 1612 cmd.exe 110 PID 1612 wrote to memory of 2304 1612 cmd.exe 110 PID 788 wrote to memory of 3304 788 Confirmation.docx.exe 111 PID 788 wrote to memory of 3304 788 Confirmation.docx.exe 111 PID 788 wrote to memory of 3304 788 Confirmation.docx.exe 111 PID 788 wrote to memory of 3120 788 Confirmation.docx.exe 113 PID 788 wrote to memory of 3120 788 Confirmation.docx.exe 113 PID 788 wrote to memory of 3120 788 Confirmation.docx.exe 113 PID 788 wrote to memory of 3120 788 Confirmation.docx.exe 113 PID 788 wrote to memory of 3120 788 Confirmation.docx.exe 113 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook rbzfnwyU.pif - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook rbzfnwyU.pif
Processes
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C:\Users\Admin\AppData\Local\Temp\Confirmation.docx.exe"C:\Users\Admin\AppData\Local\Temp\Confirmation.docx.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:788 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Public\Libraries\rbzfnwyU.cmd" "2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1612 -
C:\Windows\SysWOW64\esentutl.exeC:\\Windows\\System32\\esentutl /y C:\\Windows\\System32\\cmd.exe /d C:\\Users\\Public\\alpha.pif /o3⤵PID:840
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C:\Windows\SysWOW64\esentutl.exeC:\\Windows\\System32\\esentutl /y C:\\Windows\\System32\\ping.exe /d C:\\Users\\Public\\xpha.pif /o3⤵
- System Network Configuration Discovery: Internet Connection Discovery
PID:1096
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C:\Users\Public\alpha.pifC:\\Users\\Public\\alpha.pif /c mkdir "\\?\C:\Windows "3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:5096
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C:\Users\Public\alpha.pifC:\\Users\\Public\\alpha.pif /c mkdir "\\?\C:\Windows \SysWOW64"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4832
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C:\Users\Public\alpha.pifC:\\Users\\Public\\alpha.pif /c C:\\Users\\Public\\xpha.pif 127.0.0.1 -n 103⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4032 -
C:\Users\Public\xpha.pifC:\\Users\\Public\\xpha.pif 127.0.0.1 -n 104⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:5028
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C:\Windows \SysWOW64\per.exe"C:\\Windows \\SysWOW64\\per.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2720 -
C:\Windows\SYSTEM32\esentutl.exeesentutl /y C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe /d C:\\Users\\Public\\pha.pif /o4⤵PID:1780
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C:\Users\Public\pha.pifC:\\Users\\Public\\pha.pif -WindowStyle hidden -Command Add-MpPreference -ExclusionExtension '.exe','bat','.pif'4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1272
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C:\Users\Public\alpha.pifC:\\Users\\Public\\alpha.pif /c del "C:\Users\Public\xpha.pif"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2476
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C:\Users\Public\alpha.pifC:\\Users\\Public\\alpha.pif /c rmdir "C:\Windows \SysWOW643⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3236
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C:\Users\Public\alpha.pifC:\\Users\\Public\\alpha.pif /c rmdir "C:\Windows \"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2304
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C:\Windows\SysWOW64\esentutl.exeC:\\Windows\\System32\\esentutl.exe /y C:\Users\Admin\AppData\Local\Temp\Confirmation.docx.exe /d C:\\Users\\Public\\Libraries\\Uywnfzbr.PIF /o2⤵PID:3304
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C:\Users\Public\Libraries\rbzfnwyU.pifC:\Users\Public\Libraries\rbzfnwyU.pif2⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3120
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Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mdyahil0.zk5.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-786284298-625481688-3210388970-1000\0f5007522459c86e95ffcc62f32308f1_1b74ca46-c49b-4c52-a57d-8cd1ff70c625
- Size 46B
- SHA256 8c136c7ae08020ad16fd1928e36ad335ddef8b85906d66b712fff049aa57dc9a
- MD5 c07225d4e7d01d31042965f048728a0a
- SHA1 69d70b340fd9f44c89adb9a2278df84faa9906b7
- SHA512 23d3cea738e1abf561320847c39dadc8b5794d7bd8761b0457956f827a17ad2556118b909a3e6929db79980ccf156a6f58ac823cf88329e62417d2807b34b64b
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-786284298-625481688-3210388970-1000\0f5007522459c86e95ffcc62f32308f1_1b74ca46-c49b-4c52-a57d-8cd1ff70c625
- Size 46B
- SHA256 878f32f76b159494f5a39f9321616c6068cdb82e88df89bcc739bbc1ea78e1f9
- MD5 d898504a722bff1524134c6ab6a5eaa5
- SHA1 e0fdc90c2ca2a0219c99d2758e68c18875a3e11e
- SHA512 26a4398bffb0c0aef9a6ec53cd3367a2d0abf2f70097f711bbbf1e9e32fd9f1a72121691bb6a39eeb55d596edd527934e541b4defb3b1426b1d1a6429804dc61
- MD5 SHA1 SHA512
- Path C:\Users\Public\Libraries\rbzfnwyU.cmd
- Size 60KB
- SHA256 d08ccc9b1e3acc205fe754bad8416964e9711815e9ceed5e6af73d8e9035ec9e
- MD5 b87f096cbc25570329e2bb59fee57580
- SHA1 d281d1bf37b4fb46f90973afc65eece3908532b2
- SHA512 72901adde38f50cf6d74743c0a546c0fea8b1cd4a18449048a0758a7593a176fc33aad1ebfd955775eefc2b30532bcc18e4f2964b3731b668dd87d94405951f7
- SSDEEP 768:KwVRHlxGSbE0l9swi54HlMhhAKHwT6yQZPtQdtyWNd/Ozc:LbeSI0l9swahhhtwT6VytHNdGzc
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Public\Libraries\rbzfnwyU.pif
- Size 66KB
- SHA256 7bcdc2e607abc65ef93afd009c3048970d9e8d1c2a18fc571562396b13ebb301
- MD5 c116d3604ceafe7057d77ff27552c215
- SHA1 452b14432fb5758b46f2897aeccd89f7c82a727d
- SHA512 9202a00eeaf4c5be94de32fd41bfea40fc32d368955d49b7bad2b5c23c4ebc92dccb37d99f5a14e53ad674b63f1baa6efb1feb27225c86693ead3262a26d66c6
- SSDEEP 1536:lR2rJpByeL+39Ua1ITgA8wpuO5CU4GGMGcT4idU:lR2lg9Ua1egkCU60U
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Public\alpha.pif
- Size 231KB
- SHA256 4d89fc34d5f0f9babd022271c585a9477bf41e834e46b991deaa0530fdb25e22
- MD5 d0fce3afa6aa1d58ce9fa336cc2b675b
- SHA1 4048488de6ba4bfef9edf103755519f1f762668f
- SHA512 80e127ef81752cd50f9ea2d662dc4d3bf8db8d29680e75fa5fc406ca22cafa5c4d89ef2eac65b486413d3cdd57a2c12a1cb75f65d1e312a717d262265736d1c2
- SSDEEP 6144:i4VU52dn+OAdUV0RzCcXkThYrK9qqUtmtime:i4K2B+Ob2h0NXIn
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Public\pha.pif
- Size 442KB
- SHA256 9f914d42706fe215501044acd85a32d58aaef1419d404fddfa5d3b48f66ccd9f
- MD5 04029e121a0cfa5991749937dd22a1d9
- SHA1 f43d9bb316e30ae1a3494ac5b0624f6bea1bf054
- SHA512 6a2fb055473033fd8fdb8868823442875b5b60c115031aaeda688a35a092f6278e8687e2ae2b8dc097f8f3f35d23959757bf0c408274a2ef5f40ddfa4b5c851b
- SSDEEP 6144:r2fdXxswSX0z/YWwO9sV1yZywi/PzNKXzJ7BapCK5d3klRzULOnWyjLsPhAQzqO:qVXqXEgW2KXzJ4pdd3klnnWosPhnzq
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Public\xpha.pif
- Size 18KB
- SHA256 4aaa74f294c15aeb37ada8185d0dead58bd87276a01a814abc0c4b40545bf2ef
- MD5 b3624dd758ccecf93a1226cef252ca12
- SHA1 fcf4dad8c4ad101504b1bf47cbbddbac36b558a7
- SHA512 c613d18511b00fa25fc7b1bdde10d96debb42a99b5aaab9e9826538d0e229085bb371f0197f6b1086c4f9c605f01e71287ffc5442f701a95d67c232a5f031838
- SSDEEP 384:PVhNH/TqNcx+5tTAjtn3bPcPwoeGULZbiWBlWjVw:PVhZXx+5tTetLVohULZJgw
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows \SysWOW64\NETUTILS.dll
- Size 115KB
- SHA256 e36d4dd90b833745f161d5875cdcf13160d4fdd3ed9cecf36b2a4cb45b79996c
- MD5 ae9f2fe85cd42e75655b466e788736b7
- SHA1 0eda849180f06af9edc107b7ee03c617b7631f10
- SHA512 e38c812bf2697d0d841b2b703a04361dc40a85780a5486b3ba50be5a23936d908024c1cff67abb1e26a63795f1d31e3e96ea3e890545a41be8ebd66bc7f40d12
- SSDEEP 1536:ThOA2+ID3zFywXtv1msyRWBg5jecKP7EYACl7MbiReR5vDP+:ThF2p/5v18WBXcKP7EYMR5vDP+
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows \SysWOW64\per.exe
- Size 94KB
- SHA256 0db4d3ffdb96d13cf3b427af8be66d985728c55ae254e4b67d287797e4c0b323
- MD5 869640d0a3f838694ab4dfea9e2f544d
- SHA1 bdc42b280446ba53624ff23f314aadb861566832
- SHA512 6e775cfb350415434b18427d5ff79b930ed3b0b3fc3466bc195a796c95661d4696f2d662dd0e020c3a6c3419c2734468b1d7546712ecec868d2bbfd2bc2468a7
- SSDEEP 1536:dhJfbGY/Bn623Kvv0IzGJyyu2xXibswbTYTjULf1YrfspZPgpzF:dhJfbG6B6yKvv0uWyyu2xXibswbQjUjs
- MD5 SHA1 SHA512 SSDEEP