Analysis
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max time kernel
91s -
max time network
105s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
26-12-2022 21:34
Static task
static1
Behavioral task
behavioral1
Sample
dca16a0e7bdc4968f1988c2d38db133a0e742edf702c923b4f4a3c2f3bdaacf5.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
dca16a0e7bdc4968f1988c2d38db133a0e742edf702c923b4f4a3c2f3bdaacf5.exe
Resource
win10v2004-20220812-en
General
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Target
dca16a0e7bdc4968f1988c2d38db133a0e742edf702c923b4f4a3c2f3bdaacf5.exe
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Size
149KB
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MD5
221c3bf6b4e3c355fdce087122511fe4
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SHA1
975c36eb0442edd4d42996a3dd554ab36f95ff55
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SHA256
dca16a0e7bdc4968f1988c2d38db133a0e742edf702c923b4f4a3c2f3bdaacf5
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SHA512
edacc09d25e4c9d1d19885abe2fea72aff44e75862d9c3f1aa158edf5c40d635551abb820e89533696a4e9f3664e45c18f112a2a81e94d3badf13ed0b5acbcb4
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SSDEEP
3072:sY8Ah6pPHmZbnjL9/LZHR29C6BoFQ9QQMb7d2Y+lO662kosOgl7A8lhOlAETZeiS:h8AhKvmZbjL9/lHR29vkQ9lMUSnbOgl7
Malware Config
Signatures
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Detect rhadamanthys stealer shellcode 2 IoCs
Processes:
resource yara_rule behavioral2/memory/5036-132-0x00000000005A0000-0x00000000005BD000-memory.dmp family_rhadamanthys behavioral2/memory/5036-139-0x00000000005A0000-0x00000000005BD000-memory.dmp family_rhadamanthys -
Rhadamanthys
Rhadamanthys is an info stealer written in C++ first seen in August 2022.
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Blocklisted process makes network request 1 IoCs
Processes:
rundll32.exeflow pid process 17 3720 rundll32.exe -
Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 3720 rundll32.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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Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\10.0\Outlook\Profiles\Outlook rundll32.exe Key opened \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\11.0\Outlook\Profiles\Outlook rundll32.exe Key opened \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\12.0\Outlook\Profiles\Outlook rundll32.exe Key opened \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook rundll32.exe Key opened \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook rundll32.exe Key opened \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\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.
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Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
Processes:
dca16a0e7bdc4968f1988c2d38db133a0e742edf702c923b4f4a3c2f3bdaacf5.exepid process 5036 dca16a0e7bdc4968f1988c2d38db133a0e742edf702c923b4f4a3c2f3bdaacf5.exe 5036 dca16a0e7bdc4968f1988c2d38db133a0e742edf702c923b4f4a3c2f3bdaacf5.exe 5036 dca16a0e7bdc4968f1988c2d38db133a0e742edf702c923b4f4a3c2f3bdaacf5.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1256 3720 WerFault.exe rundll32.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
rundll32.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
rundll32.exepid process 3720 rundll32.exe 3720 rundll32.exe 3720 rundll32.exe 3720 rundll32.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
dca16a0e7bdc4968f1988c2d38db133a0e742edf702c923b4f4a3c2f3bdaacf5.exedescription pid process target process PID 5036 wrote to memory of 3720 5036 dca16a0e7bdc4968f1988c2d38db133a0e742edf702c923b4f4a3c2f3bdaacf5.exe rundll32.exe PID 5036 wrote to memory of 3720 5036 dca16a0e7bdc4968f1988c2d38db133a0e742edf702c923b4f4a3c2f3bdaacf5.exe rundll32.exe -
outlook_office_path 1 IoCs
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook rundll32.exe -
outlook_win_path 1 IoCs
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\dca16a0e7bdc4968f1988c2d38db133a0e742edf702c923b4f4a3c2f3bdaacf5.exe"C:\Users\Admin\AppData\Local\Temp\dca16a0e7bdc4968f1988c2d38db133a0e742edf702c923b4f4a3c2f3bdaacf5.exe"1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of WriteProcessMemory
PID:5036 -
C:\Windows\system32\rundll32.exe"C:\Users\Admin\AppData\Roaming\nsis_unse56ebfb.dll",PrintUIEntry |5CQkOhmAAAA|1TKr5GsMwYD|67sDqg8OAAl|xYmwxC0TNSO|1k8B3tZkgiyf2sAZQByAG4XAP9sADMAMgAuAKVkHwBs8|AtBQPz8Hb7AEQXADMATABm7wBtAHE9AHgAQr8ASgBiAHQtAln|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:3720 -
C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 3720 -s 4723⤵
- Program crash
PID:1256
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -pss -s 444 -p 3720 -ip 37201⤵PID:448
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
57KB
MD50b669e2eaf21429d273cf40b096166af
SHA14986b0e729eb6cb3efda0a092aeb9d3ba1d4bd33
SHA256a9a836a6e05c15f433da48f6782e8a0db4dfeb0539b2f8f04318013b14a048b8
SHA51223b1d1c3e1600f52dfd3f01bf9712ade579b29b51017b939f7309f31d0599808f217003a46d8c04398a3db3755c008ce1073d21be3ee951ca331e7bff4d84872
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Filesize
57KB
MD50b669e2eaf21429d273cf40b096166af
SHA14986b0e729eb6cb3efda0a092aeb9d3ba1d4bd33
SHA256a9a836a6e05c15f433da48f6782e8a0db4dfeb0539b2f8f04318013b14a048b8
SHA51223b1d1c3e1600f52dfd3f01bf9712ade579b29b51017b939f7309f31d0599808f217003a46d8c04398a3db3755c008ce1073d21be3ee951ca331e7bff4d84872