rhadamanthys | c492beaf3ab7ee328578736ffa7522f5901d8e61693381ab22ad5b7583896576

General

Target

2025-02-13_f1ec38bc13f44ad9eba7a42230b882ab_cobalt-strike_ryuk.exe
Size

1.4MB
MD5

f1ec38bc13f44ad9eba7a42230b882ab
SHA1

ae4025dde6ffdaaf72379468a268ac0220d15ddc
SHA256

c492beaf3ab7ee328578736ffa7522f5901d8e61693381ab22ad5b7583896576
SHA512

2696512e9a72cee931a69cbebcd57da87b0fd824eede2d5713375d3372bd7d4f029a2a6f5f0a99b4dbcca1c62c907dd6236a1e0ccd88b514ad5cbae6064c84c7
SSDEEP

24576:N5ikOIXxt2e9imxJLgy8008lzUQHYQ2bctQb4QYf3Pj42MdwoSB:PpmExOy8008lBHcb+Qu3PE2IwoSB

Score

10^/10

Malware Config

Signatures

Detects Rhadamanthys payload 4 IoCs

resource	yara_rule
behavioral2/memory/1620-0-0x0000000000400000-0x0000000000481000-memory.dmp	Rhadamanthys_v8
behavioral2/memory/1620-2-0x0000000000400000-0x0000000000481000-memory.dmp	Rhadamanthys_v8
behavioral2/memory/1620-3-0x0000000000400000-0x0000000000481000-memory.dmp	Rhadamanthys_v8
behavioral2/memory/1620-1-0x0000000000400000-0x0000000000481000-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 1620 created 3024	1620	rundll32.exe	51

Downloads MZ/PE file 1 IoCs

flow	pid	Process
46	1028	Process not Found

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4624 set thread context of 1620	4624	2025-02-13_f1ec38bc13f44ad9eba7a42230b882ab_cobalt-strike_ryuk.exe	88

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1352	1620	WerFault.exe	88

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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
3220	MicrosoftEdgeUpdate.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1620	rundll32.exe
1620	rundll32.exe
1620	rundll32.exe
1620	rundll32.exe
2380	svchost.exe
2380	svchost.exe
2380	svchost.exe
2380	svchost.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 4624 wrote to memory of 1620	4624	2025-02-13_f1ec38bc13f44ad9eba7a42230b882ab_cobalt-strike_ryuk.exe	88
PID 4624 wrote to memory of 1620	4624	2025-02-13_f1ec38bc13f44ad9eba7a42230b882ab_cobalt-strike_ryuk.exe	88
PID 4624 wrote to memory of 1620	4624	2025-02-13_f1ec38bc13f44ad9eba7a42230b882ab_cobalt-strike_ryuk.exe	88
PID 4624 wrote to memory of 1620	4624	2025-02-13_f1ec38bc13f44ad9eba7a42230b882ab_cobalt-strike_ryuk.exe	88
PID 4624 wrote to memory of 1620	4624	2025-02-13_f1ec38bc13f44ad9eba7a42230b882ab_cobalt-strike_ryuk.exe	88
PID 4624 wrote to memory of 1620	4624	2025-02-13_f1ec38bc13f44ad9eba7a42230b882ab_cobalt-strike_ryuk.exe	88
PID 4624 wrote to memory of 1620	4624	2025-02-13_f1ec38bc13f44ad9eba7a42230b882ab_cobalt-strike_ryuk.exe	88
PID 4624 wrote to memory of 1620	4624	2025-02-13_f1ec38bc13f44ad9eba7a42230b882ab_cobalt-strike_ryuk.exe	88
PID 4624 wrote to memory of 1620	4624	2025-02-13_f1ec38bc13f44ad9eba7a42230b882ab_cobalt-strike_ryuk.exe	88
PID 4624 wrote to memory of 1620	4624	2025-02-13_f1ec38bc13f44ad9eba7a42230b882ab_cobalt-strike_ryuk.exe	88
PID 4624 wrote to memory of 1620	4624	2025-02-13_f1ec38bc13f44ad9eba7a42230b882ab_cobalt-strike_ryuk.exe	88
PID 1620 wrote to memory of 2380	1620	rundll32.exe	93
PID 1620 wrote to memory of 2380	1620	rundll32.exe	93
PID 1620 wrote to memory of 2380	1620	rundll32.exe	93
PID 1620 wrote to memory of 2380	1620	rundll32.exe	93
PID 1620 wrote to memory of 2380	1620	rundll32.exe	93

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:3024
- C:\Windows\SysWOW64\svchost.exe
  "C:\Windows\System32\svchost.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2380

C:\Users\Admin\AppData\Local\Temp\2025-02-13_f1ec38bc13f44ad9eba7a42230b882ab_cobalt-strike_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-13_f1ec38bc13f44ad9eba7a42230b882ab_cobalt-strike_ryuk.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4624
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\SysWOW64\rundll32.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1620
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1620 -s 580
    3⤵
    - Program crash
    PID:1352

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1620 -ip 1620
1⤵
PID:4648

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIyIiBpbnN0YWxsZGF0ZXRpbWU9IjE3MzkyODMyMzYiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4Mzc1NDI1MTE0ODAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1NDA4MzM3MzQ0Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:3220

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

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1620-8-0x00000000021F0000-0x00000000025F0000-memory.dmp

Filesize
4.0MB

Download
memory/1620-4-0x00000000021F0000-0x00000000025F0000-memory.dmp

Filesize
4.0MB

Download
memory/1620-0-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/1620-1-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/1620-10-0x0000000076A80000-0x0000000076C95000-memory.dmp

Filesize
2.1MB

Download
memory/1620-5-0x00000000021F0000-0x00000000025F0000-memory.dmp

Filesize
4.0MB

Download
memory/1620-6-0x00000000021F0000-0x00000000025F0000-memory.dmp

Filesize
4.0MB

Download
memory/1620-19-0x00000000021F0000-0x00000000025F0000-memory.dmp

Filesize
4.0MB

Download
memory/1620-3-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/1620-2-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/1620-7-0x00007FFEF4D30000-0x00007FFEF4F25000-memory.dmp

Filesize
2.0MB

Download
memory/2380-14-0x0000000001600000-0x0000000001A00000-memory.dmp

Filesize
4.0MB

Download
memory/2380-15-0x00007FFEF4D30000-0x00007FFEF4F25000-memory.dmp

Filesize
2.0MB

Download
memory/2380-17-0x0000000001600000-0x0000000001A00000-memory.dmp

Filesize
4.0MB

Download
memory/2380-18-0x0000000076A80000-0x0000000076C95000-memory.dmp

Filesize
2.1MB

Download
memory/2380-11-0x0000000001050000-0x000000000105A000-memory.dmp

Filesize
40KB

Download
memory/2380-20-0x0000000001600000-0x0000000001A00000-memory.dmp

Filesize
4.0MB

Download

Analysis

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