rhadamanthys | 84fa854d9295a49125aaa8faeb5f5a75f7d133dbbfb4831430e20d5d3dc417ac

General

Target

84fa854d9295a49125aaa8faeb5f5a75f7d133dbbfb4831430e20d5d3dc417ac.exe
Size

13.8MB
MD5

6ea2b5143078d89828fbcb105b90a693
SHA1

dbfe2845b56a4eaa60015dc001162c3023158d21
SHA256

84fa854d9295a49125aaa8faeb5f5a75f7d133dbbfb4831430e20d5d3dc417ac
SHA512

bffbbfb1c62d3ebadc3977d591c052d54289bc4b4348afe7c0096f9d1b709461fb66f3c8ede5a29670847b344364d1b33651807c83ab8f8c2c6f0f9f27e34f47
SSDEEP

393216:saawEVI99NrEPFn6JdXG1w2fIVtRGpFI0+mdkO0pGYIg:saGaPce218VtRG7vTkO0cM

Score

10^/10

rhadamanthys discovery evasion execution 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 4968 created 2580	4968	stepao.exe	44

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
3000	powershell.exe

Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002
Stops running service(s) 4 TTPs
evasion execution

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Service Execution
T1569.002

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	84fa854d9295a49125aaa8faeb5f5a75f7d133dbbfb4831430e20d5d3dc417ac.exe

Executes dropped EXE 2 IoCs

pid	Process
4968	stepao.exe
2004	withrobot.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\MRT.exe	withrobot.exe

Launches sc.exe 2 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
4000	sc.exe
2332	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	84fa854d9295a49125aaa8faeb5f5a75f7d133dbbfb4831430e20d5d3dc417ac.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	stepao.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	openwith.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	84fa854d9295a49125aaa8faeb5f5a75f7d133dbbfb4831430e20d5d3dc417ac.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
4968	stepao.exe
4968	stepao.exe
4184	openwith.exe
4184	openwith.exe
4184	openwith.exe
4184	openwith.exe
2004	withrobot.exe
2004	withrobot.exe
2004	withrobot.exe
2004	withrobot.exe
2004	withrobot.exe
2004	withrobot.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2004	withrobot.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2972 wrote to memory of 4968	2972	84fa854d9295a49125aaa8faeb5f5a75f7d133dbbfb4831430e20d5d3dc417ac.exe	87
PID 2972 wrote to memory of 4968	2972	84fa854d9295a49125aaa8faeb5f5a75f7d133dbbfb4831430e20d5d3dc417ac.exe	87
PID 2972 wrote to memory of 4968	2972	84fa854d9295a49125aaa8faeb5f5a75f7d133dbbfb4831430e20d5d3dc417ac.exe	87
PID 2972 wrote to memory of 2004	2972	84fa854d9295a49125aaa8faeb5f5a75f7d133dbbfb4831430e20d5d3dc417ac.exe	88
PID 2972 wrote to memory of 2004	2972	84fa854d9295a49125aaa8faeb5f5a75f7d133dbbfb4831430e20d5d3dc417ac.exe	88
PID 4968 wrote to memory of 4184	4968	stepao.exe	89
PID 4968 wrote to memory of 4184	4968	stepao.exe	89
PID 4968 wrote to memory of 4184	4968	stepao.exe	89
PID 4968 wrote to memory of 4184	4968	stepao.exe	89
PID 4968 wrote to memory of 4184	4968	stepao.exe	89
PID 4828 wrote to memory of 3660	4828	cmd.exe	105
PID 4828 wrote to memory of 3660	4828	cmd.exe	105

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2580
- C:\Windows\SysWOW64\openwith.exe
  "C:\Windows\system32\openwith.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:4184

C:\Users\Admin\AppData\Local\Temp\84fa854d9295a49125aaa8faeb5f5a75f7d133dbbfb4831430e20d5d3dc417ac.exe
"C:\Users\Admin\AppData\Local\Temp\84fa854d9295a49125aaa8faeb5f5a75f7d133dbbfb4831430e20d5d3dc417ac.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2972
- C:\Users\Admin\AppData\Roaming\stepao.exe
  "C:\Users\Admin\AppData\Roaming\stepao.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4968
- C:\Users\Admin\AppData\Roaming\withrobot.exe
  "C:\Users\Admin\AppData\Roaming\withrobot.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2004
- - C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
    C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath @($env:UserProfile, $env:ProgramData) -ExclusionExtension '.exe' -Force
    3⤵
    - Command and Scripting Interpreter: PowerShell
    PID:3000
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c wusa /uninstall /kb:890830 /quiet /norestart
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4828
  - - C:\Windows\system32\wusa.exe
      wusa /uninstall /kb:890830 /quiet /norestart
      4⤵
      PID:3660
- - C:\Windows\system32\sc.exe
    C:\Windows\system32\sc.exe delete "RuntimeBroker"
    3⤵
    - Launches sc.exe
    PID:4000
- - C:\Windows\system32\sc.exe
    C:\Windows\system32\sc.exe create "RuntimeBroker" binpath= "C:\ProgramData\RuntimeBroker.exe" start= "auto"
    3⤵
    - Launches sc.exe
    PID:2332

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

System Services

2

T1569

Service Execution

2

T1569.002

Persistence

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Privilege Escalation

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Defense Evasion

Impair Defenses

1

T1562

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

1

T1489

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\stepao.exe

Filesize
423KB

MD5
7313e7456fbaf0d2554570c77897abf1

SHA1
850e156c7b58ab4b7ae5eedc0c8a396d33930d3d

SHA256
2fc82bf903409c53ed2b488b7920be9df0c60835d12bb21c45c27384e4a1ff38

SHA512
62cdd0914b5c150f615c2f7e56e5f106308387d9ef4d045a54e4f32280d6abbfefb1ace4ad7123881e437567df5566ff0c872555df913d534ebf43c56c8d6cd0

Download Submit
C:\Users\Admin\AppData\Roaming\withrobot.exe

Filesize
14.8MB

MD5
02071fe1b9c8d6ade8dafa0a71600503

SHA1
5b547e72386e43c291bceea5b7d0e8f51469cd3c

SHA256
00c32e90c14f9c866a30256c8499e753397c7385e4a3fbcdc86515b9ee563faf

SHA512
1c4b1c1cb788f08dea954b795d4e0bbd7c028aa5655ce23af805243d06d1c96ef687b0788343182c1d0307e9c76088e4d53e4506e5a4f8d1707001e6549b487a

Download Submit
memory/2004-141-0x00007FF65BA69000-0x00007FF65C103000-memory.dmp

Filesize
6.6MB

Download
memory/2004-139-0x00007FF65BA69000-0x00007FF65C103000-memory.dmp

Filesize
6.6MB

Download
memory/2004-137-0x00007FF65B380000-0x00007FF65CFD8000-memory.dmp

Filesize
28.3MB

Download
memory/2004-136-0x00007FFAC31D0000-0x00007FFAC31D2000-memory.dmp

Filesize
8KB

Download
memory/2004-135-0x00007FF65BA69000-0x00007FF65C103000-memory.dmp

Filesize
6.6MB

Download
memory/4184-131-0x00007FFAC2FD0000-0x00007FFAC31C5000-memory.dmp

Filesize
2.0MB

Download
memory/4184-128-0x0000000000450000-0x0000000000459000-memory.dmp

Filesize
36KB

Download
memory/4184-130-0x0000000002330000-0x0000000002730000-memory.dmp

Filesize
4.0MB

Download
memory/4184-134-0x0000000076430000-0x0000000076645000-memory.dmp

Filesize
2.1MB

Download
memory/4968-122-0x0000000003DF0000-0x00000000041F0000-memory.dmp

Filesize
4.0MB

Download
memory/4968-127-0x0000000076430000-0x0000000076645000-memory.dmp

Filesize
2.1MB

Download
memory/4968-133-0x00000000004D0000-0x000000000054E000-memory.dmp

Filesize
504KB

Download
memory/4968-124-0x00007FFAC2FD0000-0x00007FFAC31C5000-memory.dmp

Filesize
2.0MB

Download
memory/4968-125-0x0000000003DF0000-0x00000000041F0000-memory.dmp

Filesize
4.0MB

Download
memory/4968-123-0x0000000003DF0000-0x00000000041F0000-memory.dmp

Filesize
4.0MB

Download
memory/4968-60-0x00000000004D0000-0x000000000054E000-memory.dmp

Filesize
504KB

Download

Analysis

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