rhadamanthys | dca16a0e7bdc4968f1988c2d38db133a0e742edf702c923b4f4a3c2f3bdaacf5

Analysis

max time kernel
91s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
27/12/2022, 08:53

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General

Target
dca16a0e7bdc4968f1988c2d38db133a0e742edf702c923b4f4a3c2f3bdaacf5.exe
Size 149KB
Sample221227-ktbbsshg51
SHA256 dca16a0e7bdc4968f1988c2d38db133a0e742edf702c923b4f4a3c2f3bdaacf5
MD5 221c3bf6b4e3c355fdce087122511fe4
SHA1 975c36eb0442edd4d42996a3dd554ab36f95ff55
SHA512 edacc09d25e4c9d1d19885abe2fea72aff44e75862d9c3f1aa158edf5c40d635551abb820e89533696a4e9f3664e45c18f112a2a81e94d3badf13ed0b5acbcb4
SSDEEP 3072:sY8Ah6pPHmZbnjL9/LZHR29C6BoFQ9QQMb7d2Y+lO662kosOgl7A8lhOlAETZeiS:h8AhKvmZbjL9/lHR29vkQ9lMUSnbOgl7
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

rhadamanthys collection discovery spyware stealer

Malware Config

Signatures

Detect rhadamanthys stealer shellcode 2 IoCs

resource	yara_rule
behavioral2/memory/4800-132-0x00000000005C0000-0x00000000005DD000-memory.dmp	family_rhadamanthys
behavioral2/memory/4800-139-0x00000000005C0000-0x00000000005DD000-memory.dmp	family_rhadamanthys

Rhadamanthys
Rhadamanthys is an info stealer written in C++ first seen in August 2022.
stealer rhadamanthys

Blocklisted process makes network request 1 IoCs

flow	pid	Process
6	4764	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
4764	rundll32.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs

collection

Email Collection

T1114

description	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.
discovery

Query Registry
T1012

Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs

pid	Process
4800	dca16a0e7bdc4968f1988c2d38db133a0e742edf702c923b4f4a3c2f3bdaacf5.exe
4800	dca16a0e7bdc4968f1988c2d38db133a0e742edf702c923b4f4a3c2f3bdaacf5.exe
4800	dca16a0e7bdc4968f1988c2d38db133a0e742edf702c923b4f4a3c2f3bdaacf5.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1540	4764	WerFault.exe	82

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

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
4764	rundll32.exe
4764	rundll32.exe
4764	rundll32.exe
4764	rundll32.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4800 wrote to memory of 4764	4800	dca16a0e7bdc4968f1988c2d38db133a0e742edf702c923b4f4a3c2f3bdaacf5.exe	82
PID 4800 wrote to memory of 4764	4800	dca16a0e7bdc4968f1988c2d38db133a0e742edf702c923b4f4a3c2f3bdaacf5.exe	82

outlook_office_path 1 IoCs

description	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

description	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

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:4800
- C:\Windows\system32\rundll32.exe
  "C:\Users\Admin\AppData\Roaming\nsis_unse56f92a.dll",PrintUIEntry |5CQkOhmAAAA|1TKr5GsMwYD|67sDqg8OAAl|xYmwxC0TNSO|1k8B3tZkgiyf2sAZQByAG4XAP9sADMAMgAuAKVkHwBs8|AtBQPz8Gz|AFoAVgBMAGOvAFcANz8AUEcAae4hAFAAOS0CWUiD|+wo6AQCAABI|4PEKMPMzMxM|4lEJBhIiVQkvxBIiUwkCF0BSP+LRCQwSIkEJPaBAThIbwAISMdE2yQQLQHrDoEBEEjXg8ABjwEQgQFASO05lgBzJZ8Diwwk|0gDyEiLwUiL9UyrAVR7AAPRSIt|yooJiAjrwWYFv2VIiwQlYPPwM||JSItQGEg70f90NkiDwiBIi|8CSDvCdCpmg|94SBh1GkyLQP9QZkGDOGt0B+4REUt1CBEQeBAu|3QFSIsA69VI64tI|QDBagBAU1X|VldBVEFVQVb7QVddAWaBOU1a|02L+EyL8kiL79kPhfzz8ExjSf88QYE8CVBFAO8AD4Xq8|BBi4T7CYjz8IXASI087wEPhNZqEYO8Cd2MLQEPhMfz8ESL|2cgRItfHIt3|yREi08YTAPh|0wD2UgD8TPJv0WFyQ+EpPPwTf+LxEGLEEUz0v9IA9OKAoTAdP8dQcHKDQ++wN76AAFEA9C|EXXs|0GB+qr8DXx0|w6DwQFJg8AE|0E7yXNp68aL|8EPtwxORYss|4tMA+t0WDPtvqoQdFFBixTBANP|M8mKAkyLwuu3D8HJyBEDyOUQAfdBigDVEO0zwDOf9kE7DLbgEKYAg||GAYP4CHLu6|8KSIvLQf|VSd+JBPeDxeQQxATfO28Ycq9mAUFf|0FeQV1BXF9e+11bMxdIgexgAf5kAIvp6Gb+||+|SIXAD4SYdSBM9Y2vAYsrEMgz|+j9m30gjV8ETI1F|0Yz0ovL|1Qk|WiAIEyL4A+Ea3p1IEWoEDPAi9ORIF9IiXwkIKYgcIAgP0iL8A+ES3UgpiD|UEiNVghEjUffQEiNjCSFEUiL79jofP1+II1WSGreIBDiIczz8Ohn7yA|RIsGjVcIQSCmIL1YyiGJhCSAhxLe9vPwiw7aIFiJjCTYcREHMJEg6DHvIIuc|i0yTItdOkiD+|tsSIogMEyJZCTvOEyLpBoyTIlcboQBhCTchxGGko0Ru41HSzCMJPDz8Enfi9To6fwFMIqc7ngySI2EeDJBgPN|IY1PbEQwGKQCf4PpAXXzgbx4Mv8hUmV4dU2LhLsk9CIxlCT4NQHC|0g72HI4g|psv3YzRI1JQPoAlKdBuACYAKYgQMoi+Od0GUS2MMAxSY1U+yRskSBJg+hs6N1rgjBIi86mIHhI|4X|dBKLVUJM|I4wGzFIjUwkQP8P10iBxHQhYSQtCC0B
  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:4764
- - C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 4764 -s 584
    3⤵
    - Program crash
    PID:1540

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 472 -p 4764 -ip 4764
1⤵
PID:3656

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

nsis_unse56f92a.dll

Path C:\Users\Admin\AppData\Roaming\nsis_unse56f92a.dll
Size 57KB
SHA256 a9a836a6e05c15f433da48f6782e8a0db4dfeb0539b2f8f04318013b14a048b8
MD5 0b669e2eaf21429d273cf40b096166af
SHA1 4986b0e729eb6cb3efda0a092aeb9d3ba1d4bd33
SHA512 23b1d1c3e1600f52dfd3f01bf9712ade579b29b51017b939f7309f31d0599808f217003a46d8c04398a3db3755c008ce1073d21be3ee951ca331e7bff4d84872
SSDEEP 768:GEUC0v3QaNfPhY1M/staXbOgt/pqFjkWKihkWuxvDI5syov9LSYYy/BbEl:Ls3N39/B/pqFjdFhkzqk9LzDM
MD5 SHA1 SHA512 SSDEEP

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nsis_unse56f92a.dll

Path C:\Users\Admin\AppData\Roaming\nsis_unse56f92a.dll
Size 57KB
SHA256 a9a836a6e05c15f433da48f6782e8a0db4dfeb0539b2f8f04318013b14a048b8
MD5 0b669e2eaf21429d273cf40b096166af
SHA1 4986b0e729eb6cb3efda0a092aeb9d3ba1d4bd33
SHA512 23b1d1c3e1600f52dfd3f01bf9712ade579b29b51017b939f7309f31d0599808f217003a46d8c04398a3db3755c008ce1073d21be3ee951ca331e7bff4d84872
SSDEEP 768:GEUC0v3QaNfPhY1M/staXbOgt/pqFjkWKihkWuxvDI5syov9LSYYy/BbEl:Ls3N39/B/pqFjdFhkzqk9LzDM
MD5 SHA1 SHA512 SSDEEP

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memory/4764-137-0x000001EA94590000-0x000001EA94597000-memory.dmp

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memory/4764-138-0x00007FF4D0BF0000-0x00007FF4D0CE9000-memory.dmp

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memory/4764-140-0x00007FF4D0BF0000-0x00007FF4D0CE9000-memory.dmp

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memory/4764-141-0x00007FF4D0BF0000-0x00007FF4D0CE9000-memory.dmp

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memory/4764-142-0x0000000010000000-0x0000000010013000-memory.dmp

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memory/4800-132-0x00000000005C0000-0x00000000005DD000-memory.dmp

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memory/4800-136-0x0000000002870000-0x0000000003870000-memory.dmp

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memory/4800-139-0x00000000005C0000-0x00000000005DD000-memory.dmp

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