rhadamanthys | 285557d7846b75b624cb60db673bceb9a7093330476875499e062aa18b39e4bb

General

Target

2025-02-07_f8cd8cd3e6a25d340c068d8afc584d57_cobalt-strike_ryuk.exe
Size

2.1MB
MD5

f8cd8cd3e6a25d340c068d8afc584d57
SHA1

a2df305f1715f4edb3475ded16b5ce7fd1d07a49
SHA256

285557d7846b75b624cb60db673bceb9a7093330476875499e062aa18b39e4bb
SHA512

7fa99c628dc6634a2040923b15f859a707c102e6d8f89fec94d527dca914be60a3cb7b0ea2f162cbb3c9968d8194ddd2a1d6aabcf1bf05d67f113a682a547e6d
SSDEEP

49152:HMoRLBk7hwlVpx3hTuTpCrm4AJy3gg3Ps2QfQWyEvib+Fh:C+bClPlgsf3D

Score

10^/10

Malware Config

Signatures

Detects Rhadamanthys payload 5 IoCs

resource	yara_rule
behavioral1/memory/2792-2-0x0000000000400000-0x000000000051E000-memory.dmp	Rhadamanthys_v8
behavioral1/memory/2792-3-0x0000000000400000-0x000000000051E000-memory.dmp	Rhadamanthys_v8
behavioral1/memory/2792-5-0x0000000000400000-0x000000000051E000-memory.dmp	Rhadamanthys_v8
behavioral1/memory/2792-9-0x0000000000400000-0x000000000051E000-memory.dmp	Rhadamanthys_v8
behavioral1/memory/2792-7-0x0000000000400000-0x000000000051E000-memory.dmp	Rhadamanthys_v8

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

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 2792 created 1148	2792	jsc.exe	20

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2764 set thread context of 2792	2764	2025-02-07_f8cd8cd3e6a25d340c068d8afc584d57_cobalt-strike_ryuk.exe	30

System Location Discovery: System Language Discovery 1 TTPs 2 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	jsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dialer.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2792	jsc.exe
2792	jsc.exe
2792	jsc.exe
2792	jsc.exe
2736	dialer.exe
2736	dialer.exe
2736	dialer.exe
2736	dialer.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2764 wrote to memory of 2792	2764	2025-02-07_f8cd8cd3e6a25d340c068d8afc584d57_cobalt-strike_ryuk.exe	30
PID 2764 wrote to memory of 2792	2764	2025-02-07_f8cd8cd3e6a25d340c068d8afc584d57_cobalt-strike_ryuk.exe	30
PID 2764 wrote to memory of 2792	2764	2025-02-07_f8cd8cd3e6a25d340c068d8afc584d57_cobalt-strike_ryuk.exe	30
PID 2764 wrote to memory of 2792	2764	2025-02-07_f8cd8cd3e6a25d340c068d8afc584d57_cobalt-strike_ryuk.exe	30
PID 2764 wrote to memory of 2792	2764	2025-02-07_f8cd8cd3e6a25d340c068d8afc584d57_cobalt-strike_ryuk.exe	30
PID 2764 wrote to memory of 2792	2764	2025-02-07_f8cd8cd3e6a25d340c068d8afc584d57_cobalt-strike_ryuk.exe	30
PID 2764 wrote to memory of 2792	2764	2025-02-07_f8cd8cd3e6a25d340c068d8afc584d57_cobalt-strike_ryuk.exe	30
PID 2764 wrote to memory of 2792	2764	2025-02-07_f8cd8cd3e6a25d340c068d8afc584d57_cobalt-strike_ryuk.exe	30
PID 2764 wrote to memory of 2792	2764	2025-02-07_f8cd8cd3e6a25d340c068d8afc584d57_cobalt-strike_ryuk.exe	30
PID 2792 wrote to memory of 2736	2792	jsc.exe	31
PID 2792 wrote to memory of 2736	2792	jsc.exe	31
PID 2792 wrote to memory of 2736	2792	jsc.exe	31
PID 2792 wrote to memory of 2736	2792	jsc.exe	31
PID 2792 wrote to memory of 2736	2792	jsc.exe	31
PID 2792 wrote to memory of 2736	2792	jsc.exe	31

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1148
- C:\Users\Admin\AppData\Local\Temp\2025-02-07_f8cd8cd3e6a25d340c068d8afc584d57_cobalt-strike_ryuk.exe
  "C:\Users\Admin\AppData\Local\Temp\2025-02-07_f8cd8cd3e6a25d340c068d8afc584d57_cobalt-strike_ryuk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2764
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
    3⤵
    - Suspicious use of NtCreateUserProcessOtherParentProcess
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:2792
- C:\Windows\SysWOW64\dialer.exe
  "C:\Windows\system32\dialer.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2736

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2736-26-0x0000000077050000-0x0000000077097000-memory.dmp

Filesize
284KB

Download
memory/2736-31-0x0000000001B90000-0x0000000001F90000-memory.dmp

Filesize
4.0MB

Download
memory/2736-19-0x0000000000080000-0x000000000008A000-memory.dmp

Filesize
40KB

Download
memory/2736-22-0x0000000001B90000-0x0000000001F90000-memory.dmp

Filesize
4.0MB

Download
memory/2736-27-0x0000000001B90000-0x0000000001F90000-memory.dmp

Filesize
4.0MB

Download
memory/2736-29-0x00000000776C0000-0x0000000077869000-memory.dmp

Filesize
1.7MB

Download
memory/2736-28-0x00000000776C1000-0x00000000777C2000-memory.dmp

Filesize
1.0MB

Download
memory/2736-24-0x00000000776C0000-0x0000000077869000-memory.dmp

Filesize
1.7MB

Download
memory/2792-9-0x0000000000400000-0x000000000051E000-memory.dmp

Filesize
1.1MB

Download
memory/2792-10-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/2792-12-0x00000000002F0000-0x0000000000300000-memory.dmp

Filesize
64KB

Download
memory/2792-13-0x0000000004EC0000-0x00000000052C0000-memory.dmp

Filesize
4.0MB

Download
memory/2792-16-0x00000000776C0000-0x0000000077869000-memory.dmp

Filesize
1.7MB

Download
memory/2792-14-0x0000000004EC0000-0x00000000052C0000-memory.dmp

Filesize
4.0MB

Download
memory/2792-18-0x0000000077050000-0x0000000077097000-memory.dmp

Filesize
284KB

Download
memory/2792-15-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2792-20-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2792-11-0x00000000002E0000-0x00000000002E8000-memory.dmp

Filesize
32KB

Download
memory/2792-7-0x0000000000400000-0x000000000051E000-memory.dmp

Filesize
1.1MB

Download
memory/2792-23-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2792-1-0x0000000000400000-0x000000000051E000-memory.dmp

Filesize
1.1MB

Download
memory/2792-5-0x0000000000400000-0x000000000051E000-memory.dmp

Filesize
1.1MB

Download
memory/2792-4-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2792-3-0x0000000000400000-0x000000000051E000-memory.dmp

Filesize
1.1MB

Download
memory/2792-0-0x0000000000400000-0x000000000051E000-memory.dmp

Filesize
1.1MB

Download
memory/2792-30-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2792-2-0x0000000000400000-0x000000000051E000-memory.dmp

Filesize
1.1MB

Download

Analysis

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