rhadamanthys | a130810e663458a3c4037ec1fff7fc151d1974cda568574346fe9834f858153a

General

Target

Audacity lnstallSetup.exe
Size

805.0MB
MD5

9cc1ace92bdea826528ddf9ed9e6ff15
SHA1

29d3d26a7e9f4a42816a78a272ba1b92a7b4f7bb
SHA256

c9cb8c7e23a392d404db0530819d76d31c2011110872517226171b9c5441096f
SHA512

140e94e1212e1b606163259df5ee0fee9e71db3ed072dcbea196fbde56547e89120fd4330294c633bf22b82265d570c6073178a1685769166c091c2d3bcccd42
SSDEEP

6144:jkfcNplrEPyT/BvyhN2YWh5kr355555555555555555555555555555555555554:acNpDdyh61

Score

10^/10

rhadamanthys collection discovery spyware stealer

Malware Config

Signatures

Detect rhadamanthys stealer shellcode 3 IoCs

resource	yara_rule
behavioral2/memory/380-133-0x0000000000A30000-0x0000000000A4D000-memory.dmp	family_rhadamanthys
behavioral2/memory/380-135-0x0000000000A30000-0x0000000000A4D000-memory.dmp	family_rhadamanthys
behavioral2/memory/380-142-0x0000000000A30000-0x0000000000A4D000-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 3 IoCs

flow	pid	Process
42	3564	rundll32.exe
52	3564	rundll32.exe
55	3564	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
3564	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-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Office\10.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Office\11.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\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.
discovery

Query Registry
T1012

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
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe
3564	rundll32.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 380 wrote to memory of 3564	380	Audacity lnstallSetup.exe	83
PID 380 wrote to memory of 3564	380	Audacity lnstallSetup.exe	83

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	rundll32.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\Audacity lnstallSetup.exe
"C:\Users\Admin\AppData\Local\Temp\Audacity lnstallSetup.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:380
- C:\Windows\system32\rundll32.exe
  "C:\Users\Admin\AppData\Roaming\vcredist_e578388.dll",Options_RunDLL 0900cc00-0040-0495-103a-c82e7dff5915
  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:3564

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\vcredist_e578388.dll

Filesize
53KB

MD5
8db7f10952736955f22fc2c162fd73b5

SHA1
64d502c2dcb720a29d102c8f5d568216e52d3893

SHA256
d62418951680bca014016076370389805aa93d8dd92cbc9af762f845762146c2

SHA512
2168066f071050bebb1f653eaacdf379b0ac7f06e4873d09e83e8088f918229d31b345efae2110a477e151c6b240a5e8eebe311d56032919395d6af233b2e794

Download Submit
C:\Users\Admin\AppData\Roaming\vcredist_e578388.dll

Filesize
53KB

MD5
8db7f10952736955f22fc2c162fd73b5

SHA1
64d502c2dcb720a29d102c8f5d568216e52d3893

SHA256
d62418951680bca014016076370389805aa93d8dd92cbc9af762f845762146c2

SHA512
2168066f071050bebb1f653eaacdf379b0ac7f06e4873d09e83e8088f918229d31b345efae2110a477e151c6b240a5e8eebe311d56032919395d6af233b2e794

Download Submit
memory/380-135-0x0000000000A30000-0x0000000000A4D000-memory.dmp

Filesize
116KB

Download
memory/380-132-0x0000000000AE2000-0x0000000000AFD000-memory.dmp

Filesize
108KB

Download
memory/380-134-0x0000000000AE2000-0x0000000000AFD000-memory.dmp

Filesize
108KB

Download
memory/380-133-0x0000000000A30000-0x0000000000A4D000-memory.dmp

Filesize
116KB

Download
memory/380-141-0x0000000000AE2000-0x0000000000AFD000-memory.dmp

Filesize
108KB

Download
memory/380-142-0x0000000000A30000-0x0000000000A4D000-memory.dmp

Filesize
116KB

Download
memory/3564-139-0x000001D968400000-0x000001D968407000-memory.dmp

Filesize
28KB

Download
memory/3564-140-0x00007FF469CE0000-0x00007FF469DDA000-memory.dmp

Filesize
1000KB

Download
memory/3564-143-0x00007FF469CE0000-0x00007FF469DDA000-memory.dmp

Filesize
1000KB

Download
memory/3564-144-0x00007FF469CE0000-0x00007FF469DDA000-memory.dmp

Filesize
1000KB

Download
memory/3564-145-0x00007FF8866A0000-0x00007FF8866B2000-memory.dmp

Filesize
72KB

Download

Analysis

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