rhadamanthys | 00fc4b8a4c65c06766608f3ef3f92385c8e147f5991dabe290e33dd14b39ad44

General

Target

msimg32.dll
Size

4.9MB
MD5

01f5cdd59fc36a636abd69c6be719f3e
SHA1

8ba271fe2998582a67b025b5e794d0174f2c852b
SHA256

00fc4b8a4c65c06766608f3ef3f92385c8e147f5991dabe290e33dd14b39ad44
SHA512

7cb4c643abed14da14876dc78c9ab4769bd856b1d083aa926804d94a7db64b8a84fa6fb92b10fc0ab8c8682a947b5c3d146e59b7623e95b9dd28427e15b48a3b
SSDEEP

49152:lOrEyCal8VnN+LwbEOCAQFhZ81wm+R9BlwxPJfkwDQby10ZLOkALP7fi7HAap:olCQ8VN+TAghZbR9y6wKy6kkkOHAap

Score

10^/10

rhadamanthys discovery persistence stealer

Malware Config

Signatures

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

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 3672 created 2640	3672	rundll32.exe	44

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3089151618-2647890268-2710988337-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\*ChromeUpdate = "rundll32.exe C:\\Users\\Admin\\Documents\\FirefoxData.dll,EntryPoint"	reg.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
3996	rundll32.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
5060	3672	WerFault.exe	85
2292	3672	WerFault.exe	85

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	openwith.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3672	rundll32.exe
3672	rundll32.exe
4984	openwith.exe
4984	openwith.exe
4984	openwith.exe
4984	openwith.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 3704 wrote to memory of 3996	3704	rundll32.exe	81
PID 3704 wrote to memory of 3996	3704	rundll32.exe	81
PID 3704 wrote to memory of 3996	3704	rundll32.exe	81
PID 3996 wrote to memory of 3672	3996	rundll32.exe	85
PID 3996 wrote to memory of 3672	3996	rundll32.exe	85
PID 3996 wrote to memory of 3672	3996	rundll32.exe	85
PID 3996 wrote to memory of 3672	3996	rundll32.exe	85
PID 3996 wrote to memory of 3672	3996	rundll32.exe	85
PID 3996 wrote to memory of 3672	3996	rundll32.exe	85
PID 3996 wrote to memory of 1116	3996	rundll32.exe	86
PID 3996 wrote to memory of 1116	3996	rundll32.exe	86
PID 3996 wrote to memory of 1116	3996	rundll32.exe	86
PID 1116 wrote to memory of 1436	1116	cmd.exe	88
PID 1116 wrote to memory of 1436	1116	cmd.exe	88
PID 1116 wrote to memory of 1436	1116	cmd.exe	88
PID 3672 wrote to memory of 4984	3672	rundll32.exe	89
PID 3672 wrote to memory of 4984	3672	rundll32.exe	89
PID 3672 wrote to memory of 4984	3672	rundll32.exe	89
PID 3672 wrote to memory of 4984	3672	rundll32.exe	89
PID 3672 wrote to memory of 4984	3672	rundll32.exe	89

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2640
- C:\Windows\SysWOW64\openwith.exe
  "C:\Windows\system32\openwith.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:4984

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\msimg32.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3704
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\msimg32.dll,#1
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3996
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\SysWOW64\rundll32.exe"
    3⤵
    - Suspicious use of NtCreateUserProcessOtherParentProcess
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:3672
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3672 -s 596
      4⤵
      Program crash
      PID:5060
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3672 -s 588
      4⤵
      Program crash
      PID:2292
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /C reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*ChromeUpdate" /t REG_SZ /d "rundll32.exe C:\Users\Admin\Documents\FirefoxData.dll",EntryPoint /f & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1116
  - - C:\Windows\SysWOW64\reg.exe
      reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*ChromeUpdate" /t REG_SZ /d "rundll32.exe C:\Users\Admin\Documents\FirefoxData.dll",EntryPoint /f
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:1436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3672 -ip 3672
1⤵
PID:3616

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3672 -ip 3672
1⤵
PID:2328

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3672-14-0x00007FF907FB0000-0x00007FF9081A5000-memory.dmp

Filesize
2.0MB

Download
memory/3672-15-0x00000000034E0000-0x00000000038E0000-memory.dmp

Filesize
4.0MB

Download
memory/3672-28-0x00000000034E0000-0x00000000038E0000-memory.dmp

Filesize
4.0MB

Download
memory/3672-17-0x0000000076850000-0x0000000076A65000-memory.dmp

Filesize
2.1MB

Download
memory/3672-18-0x00000000034E0000-0x00000000038E0000-memory.dmp

Filesize
4.0MB

Download
memory/3672-3-0x0000000000800000-0x0000000000801000-memory.dmp

Filesize
4KB

Download
memory/3672-9-0x0000000000580000-0x00000000005FE000-memory.dmp

Filesize
504KB

Download
memory/3672-8-0x0000000000580000-0x00000000005FE000-memory.dmp

Filesize
504KB

Download
memory/3672-10-0x0000000000580000-0x00000000005FE000-memory.dmp

Filesize
504KB

Download
memory/3672-13-0x00000000034E0000-0x00000000038E0000-memory.dmp

Filesize
4.0MB

Download
memory/3672-12-0x00000000034E0000-0x00000000038E0000-memory.dmp

Filesize
4.0MB

Download
memory/3996-0-0x0000000065000000-0x00000000654EA000-memory.dmp

Filesize
4.9MB

Download
memory/3996-6-0x0000000065000000-0x00000000654EA000-memory.dmp

Filesize
4.9MB

Download
memory/3996-7-0x0000000065000000-0x00000000654EA000-memory.dmp

Filesize
4.9MB

Download
memory/3996-1-0x0000000065013000-0x000000006502D000-memory.dmp

Filesize
104KB

Download
memory/3996-2-0x0000000065000000-0x00000000654EA000-memory.dmp

Filesize
4.9MB

Download
memory/4984-19-0x00000000009D0000-0x00000000009D9000-memory.dmp

Filesize
36KB

Download
memory/4984-22-0x0000000002820000-0x0000000002C20000-memory.dmp

Filesize
4.0MB

Download
memory/4984-26-0x0000000002820000-0x0000000002C20000-memory.dmp

Filesize
4.0MB

Download
memory/4984-23-0x00007FF907FB0000-0x00007FF9081A5000-memory.dmp

Filesize
2.0MB

Download
memory/4984-29-0x0000000002820000-0x0000000002C20000-memory.dmp

Filesize
4.0MB

Download
memory/4984-25-0x0000000076850000-0x0000000076A65000-memory.dmp

Filesize
2.1MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads