Analysis
- max time kernel
91s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system - submitted
01/02/2023, 15:51
Static task
static1
Behavioral task
behavioral1
Sample
80fe50fa10ae942fa2ab852d998799f3.exe
Resource
win7-20221111-en
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
80fe50fa10ae942fa2ab852d998799f3.exe
Resource
win10v2004-20220901-en
13 signatures
150 seconds
General
- Target 80fe50fa10ae942fa2ab852d998799f3.exe
- Size 279KB
- Sample230201-tagtxaae24
- SHA256 aa64d1ced4e8d63e410a37fae592af152e222ee8a10bce0a364545bae3cac365
- MD5 80fe50fa10ae942fa2ab852d998799f3
- SHA1 1b7868713c381e13ff7015e11bc4c4dc4a9b5387
- SHA512 1c40cc9f9401e941a7236064b3687f741af6bb6dae00b3cc0a7348037b5a116c131ef95b9bbe6f8c17a25d53146ac27b2d7f1ec9dce5f4f2d4a4e727171c4239
- SSDEEP 6144:yWtikSNLW/SooFIZj9OB5ZZL9NBhIVbw9S9PVDpGnG96:yW8tN6/SooYk5ZZhNEaU9JZ
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detect rhadamanthys stealer shellcode 2 IoCs
resource yara_rule behavioral2/memory/4884-135-0x00000000049A0000-0x00000000049BD000-memory.dmp family_rhadamanthys behavioral2/memory/4884-143-0x00000000049A0000-0x00000000049BD000-memory.dmp family_rhadamanthys - Rhadamanthys
Rhadamanthys is an info stealer written in C++ first seen in August 2022.
- Blocklisted process makes network request 1 IoCs
flow pid Process 16 2916 rundll32.exe - Loads dropped DLL 1 IoCs
pid Process 2916 rundll32.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 6 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook rundll32.exe Key opened \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook rundll32.exe Key opened \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook rundll32.exe Key opened \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\10.0\Outlook\Profiles\Outlook rundll32.exe Key opened \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\11.0\Outlook\Profiles\Outlook rundll32.exe Key opened \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\12.0\Outlook\Profiles\Outlook rundll32.exe - Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Program crash 2 IoCs
pid pid_target Process procid_target 1924 4884 WerFault.exe 24 1780 2916 WerFault.exe 85 - Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString rundll32.exe - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2916 rundll32.exe 2916 rundll32.exe 2916 rundll32.exe 2916 rundll32.exe - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 4884 wrote to memory of 2916 4884 80fe50fa10ae942fa2ab852d998799f3.exe 85 PID 4884 wrote to memory of 2916 4884 80fe50fa10ae942fa2ab852d998799f3.exe 85 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook rundll32.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook rundll32.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\80fe50fa10ae942fa2ab852d998799f3.exe"C:\Users\Admin\AppData\Local\Temp\80fe50fa10ae942fa2ab852d998799f3.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4884 -
C:\Windows\system32\rundll32.exe"C:\Users\Admin\AppData\Roaming\nsis_unse56d17e.dll",PrintUIEntry |5CQkOhmAAAA|1TKr5GsMwYD|67sDqg8OAAl|xYmwxC0TNSO|1k8B3tZkgiyf2sAZQByAG4XAP9sADMAMgAuAKVkHwBs8|AtBQPz8Dj|AHkAYgBSAE7rAGNDAFQ7AHoANL8AdQBVAFctAln|SIPsKOgEAgD|AEiDxCjDzMz|zEyJRCQYSIn|VCQQSIlMJAj+XQFIi0QkMEiJ2wQkgQE4SG8ACEhvx0QkEC0B6w6BAV8QSIPAAY8BEIEBt0BIOZYAcyWfA4v|DCRIA8hIi8HXSItMqwFUewAD0f9Ii8qKCYgI6|3BZgVlSIsEJWD+8|AzyUiLUBhI|zvRdDZIg8Ig|0iLAkg7wnQq|2aDeEgYdRpM|4tAUGZBgzhru3QHERFLdQgREHj|EC50BUiLAOuv1UiLSP0AwWoAQP9TVVZXQVRBVe9BVkFXXQFmgTn|TVpNi|hMi|K|SIvZD4X88|BM|2NJPEGBPAlQv0UAAA+F6vPwQe+LhAmI8|CFwEi|jTwBD4TWahGDd7wJjC0BD4TH8|D|RItnIESLXxz|i3ckRItPGEz|A+FMA9lIA|H|M8lFhckPhKT+8|BNi8RBixBF|zPSSAPTigKE|8B0HUHByg0Pe77A+gABRAPQvxH|dexBgfqq|A3|fHQOg8EBSYP|wARBO8lzaev|xovBD7cMTkX|iyyLTAPrdFj7M+2qEHRRQYsU|sEA0zPJigJMi9|C6w|BycgRA8je5RABQYoA1RDtM3|AM|ZBOwy24BD+pgCDxgGD+Ahy|+7rCkiLy0H|f9VJiQT3g8XkEH|EBDtvGHKvZgH|QV9BXkFdQVzvX15dWzMXSIHs+2ABZACL6ehm|v|||0iFwA+EmNZ1IEyNrwGLKxDIM|f|6Jt9II1fBEz|jUVGM9KLy||3VCRogCBMi+AP64RrdSBFqBAzwIt905EgSIl8JCCmIP1wgCBIi|APhEv8dSCmIFBIjVYIRH+NR0BIjYwkhRG|SIvY6Hz9fiCNq1ZI3iAQ4iHM8|Do|WfvIESLBo1XCPRBIKYgWMohiYQkgNqHEt7z8IsO2iBYiWOMJHERBzCRIOgx7yD7i5wtMkyLXTpI74P7bEiKIDBMib9kJDhMi6QaMky7iVyEAYQk3IcRhu2SjRGNR0swjCTwfvPwSYvU6On8BTC7ipx4MkiNhHgyQf+A8yGNT2xEMP0YpAKD6QF184H9vHgyIVJleHVN74uEJPQiMZQk+P41AcJIO9hyOIP|+mx2M0SNSUCe+gCUQbgAmACmIECeyiL4dBlEtjDAMUnvjVQkbJEgSYPod2zoa4IwSIvOpiD|eEiF|3QSi1XzQkyOMBsxSI1MJD9A|9dIgcR0IWEkAC0ILQE=2⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Accesses Microsoft Outlook profiles
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- outlook_office_path
- outlook_win_path
PID:2916 -
C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 2916 -s 3043⤵
- Program crash
PID:1780
-
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4884 -s 6962⤵
- Program crash
PID:1924
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4884 -ip 48841⤵PID:1880
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -pss -s 424 -p 2916 -ip 29161⤵PID:3392
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\nsis_unse56d17e.dll
- Size 49KB
- SHA256 438c088568093ad767802ba5e132efbd4e643ddf62e4996565c3b46719e3e576
- MD5 832890fded186835970d1d3302590138
- SHA1 5385703e9dcde43e60928b2e9c941b7232468a6a
- SHA512 5cf752eac75b532b32501c9d469cbcb6638b49cf20df040554b37986cbe3c068a10e2ff69747b594b5b114111cbbe1cdfbbd0f394a7ac71b863e042414a68ae1
- SSDEEP 768:aFrMkWGTEB8sbPDzuW68Ps3yJXMH5Tts9sxlBakygO7wDyEpSDAWG2NqQbZq3sYU:atbDTvBW71G5S9sxlckyV7w5pSAdV3C
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\nsis_unse56d17e.dll
- Size 49KB
- SHA256 438c088568093ad767802ba5e132efbd4e643ddf62e4996565c3b46719e3e576
- MD5 832890fded186835970d1d3302590138
- SHA1 5385703e9dcde43e60928b2e9c941b7232468a6a
- SHA512 5cf752eac75b532b32501c9d469cbcb6638b49cf20df040554b37986cbe3c068a10e2ff69747b594b5b114111cbbe1cdfbbd0f394a7ac71b863e042414a68ae1
- SSDEEP 768:aFrMkWGTEB8sbPDzuW68Ps3yJXMH5Tts9sxlBakygO7wDyEpSDAWG2NqQbZq3sYU:atbDTvBW71G5S9sxlckyV7w5pSAdV3C
- MD5 SHA1 SHA512 SSDEEP