rhadamanthys | f3e028476e8eba6b4d210dd1757a1f94c320e2e1c7194d5f449cf9fdb01a4ce9

Analysis

max time kernel
102s
max time network
103s
platform
windows11-21h2_x64
resource
win11-20250619-en
resource tags

arch:x64arch:x86image:win11-20250619-enlocale:en-usos:windows11-21h2-x64system
submitted
09/08/2025, 02:56

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General

Target
kosdko0.exe
Size 2.2MB
Sample250809-dfg4vswnv6
SHA256 f3e028476e8eba6b4d210dd1757a1f94c320e2e1c7194d5f449cf9fdb01a4ce9
MD5 83ef11121057f015ea866d2240e223fc
SHA1 56292778f90591c0fee29d524ca8eccb7b2de5c4
SHA512 ba7770b872523f39b98c6954ce516f480b01ca9e34ef66f1f27197bc0b128e08f34166966449447c45da27a8e14aad985faff2a02efe3c0d7ae02b0cbeb466de
SSDEEP 49152:2GxBXlIIemzC1aSIGm139CSK309A+5oZAJr:2N81cX309/9
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

rhadamanthys discovery stealer

Malware Config

Signatures

Detects Rhadamanthys Payload 2 IoCs

resource	yara_rule
behavioral3/memory/5364-6-0x0000000002B50000-0x0000000002F50000-memory.dmp	family_rhadamanthys_payload
behavioral3/memory/5364-5-0x0000000002B50000-0x0000000002F50000-memory.dmp	family_rhadamanthys_payload

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5272 set thread context of 5364	5272	kosdko0.exe	78

Program crash 1 IoCs

pid	pid_target	Process	procid_target
792	5364	WerFault.exe	78

System Location Discovery: System Language Discovery 1 TTPs 1 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	explorer.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
5364	explorer.exe
5364	explorer.exe
5364	explorer.exe
5364	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
5364	explorer.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 5272 wrote to memory of 5364	5272	kosdko0.exe	78
PID 5272 wrote to memory of 5364	5272	kosdko0.exe	78
PID 5272 wrote to memory of 5364	5272	kosdko0.exe	78
PID 5272 wrote to memory of 5364	5272	kosdko0.exe	78
PID 5272 wrote to memory of 5364	5272	kosdko0.exe	78

C:\Users\Admin\AppData\Local\Temp\kosdko0.exe
"C:\Users\Admin\AppData\Local\Temp\kosdko0.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5272
- C:\Windows\SysWOW64\explorer.exe
  C:\Windows\SysWOW64\explorer.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  PID:5364
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5364 -s 532
    3⤵
    - Program crash
    PID:792

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 5364 -ip 5364
1⤵
PID:5716

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/5364-0-0x0000000000650000-0x00000000006E6000-memory.dmp

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memory/5364-1-0x0000000000650000-0x00000000006E6000-memory.dmp

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memory/5364-2-0x0000000000650000-0x00000000006E6000-memory.dmp

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memory/5364-3-0x0000000000650000-0x00000000006E6000-memory.dmp

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memory/5364-4-0x0000000000650000-0x00000000006E6000-memory.dmp

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memory/5364-6-0x0000000002B50000-0x0000000002F50000-memory.dmp

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memory/5364-5-0x0000000002B50000-0x0000000002F50000-memory.dmp

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memory/5364-7-0x0000000002B50000-0x0000000002F50000-memory.dmp

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memory/5364-8-0x0000000002B50000-0x0000000002F50000-memory.dmp

Download

memory/5364-9-0x00007FF8859A0000-0x00007FF885BA9000-memory.dmp

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memory/5364-11-0x0000000076430000-0x0000000076682000-memory.dmp

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memory/5364-12-0x0000000002B50000-0x0000000002F50000-memory.dmp

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