rhadamanthys | 8af7fadc968927f6d8a4056e3d15808c254bbee4080985d03d377c361e467357

Resubmissions

27-11-2024 10:02

241127-l21gbsvrer 10

12-07-2023 03:45

230712-ea23hsbg48 10

Analysis

max time kernel
97s
max time network
95s
platform
windows7_x64
resource
win7-20230703-en
resource tags

arch:x64arch:x86image:win7-20230703-enlocale:en-usos:windows7-x64system
submitted
12-07-2023 03:45

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General

Target

836dfa8ecf57ce861f4cacfe4a85572d.exe
Size

448KB
MD5

836dfa8ecf57ce861f4cacfe4a85572d
SHA1

ab1d13d733ce513953143c64440323b1969925a9
SHA256

8af7fadc968927f6d8a4056e3d15808c254bbee4080985d03d377c361e467357
SHA512

32f5c37ca495589c7d31f79c987f2f420e3ead46f09a008c2a8107ff81523986dc993b47a0425ff96be0e761177edeea79d272982e818c4935f087bb4e86ca98
SSDEEP

6144:qlE8DIpjK28t4sL4wlp3z/pSZ+pDKpf9EkQbKxVK+PXItNOapG8RuzRiRh3Zc:SEpj7sLLv/cgu4VGn6OaM+ucj

Score

10^/10

rhadamanthys collection stealer

Malware Config

Signatures

Detect rhadamanthys stealer shellcode 2 IoCs

resource	yara_rule
behavioral1/memory/1100-55-0x0000000001ED0000-0x00000000022D0000-memory.dmp	family_rhadamanthys
behavioral1/memory/1100-56-0x0000000001ED0000-0x00000000022D0000-memory.dmp	family_rhadamanthys

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 1100 created 1272	1100	836dfa8ecf57ce861f4cacfe4a85572d.exe	15

Deletes itself 1 IoCs

pid	Process
2156	certreq.exe

Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3891603265-141683679-4067940827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-3891603265-141683679-4067940827-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-3891603265-141683679-4067940827-1000\Software\Microsoft\Office\10.0\Outlook\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-3891603265-141683679-4067940827-1000\Software\Microsoft\Office\11.0\Outlook\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-3891603265-141683679-4067940827-1000\Software\Microsoft\Office\12.0\Outlook\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-3891603265-141683679-4067940827-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	certreq.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	certreq.exe
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	certreq.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1100	836dfa8ecf57ce861f4cacfe4a85572d.exe
1100	836dfa8ecf57ce861f4cacfe4a85572d.exe
1100	836dfa8ecf57ce861f4cacfe4a85572d.exe
1100	836dfa8ecf57ce861f4cacfe4a85572d.exe
2156	certreq.exe
2156	certreq.exe
2156	certreq.exe
2156	certreq.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1100 wrote to memory of 2156	1100	836dfa8ecf57ce861f4cacfe4a85572d.exe	30
PID 1100 wrote to memory of 2156	1100	836dfa8ecf57ce861f4cacfe4a85572d.exe	30
PID 1100 wrote to memory of 2156	1100	836dfa8ecf57ce861f4cacfe4a85572d.exe	30
PID 1100 wrote to memory of 2156	1100	836dfa8ecf57ce861f4cacfe4a85572d.exe	30
PID 1100 wrote to memory of 2156	1100	836dfa8ecf57ce861f4cacfe4a85572d.exe	30
PID 1100 wrote to memory of 2156	1100	836dfa8ecf57ce861f4cacfe4a85572d.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3891603265-141683679-4067940827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	certreq.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3891603265-141683679-4067940827-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	certreq.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1272
- C:\Users\Admin\AppData\Local\Temp\836dfa8ecf57ce861f4cacfe4a85572d.exe
  "C:\Users\Admin\AppData\Local\Temp\836dfa8ecf57ce861f4cacfe4a85572d.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1100
- C:\Windows\system32\certreq.exe
  "C:\Windows\system32\certreq.exe"
  2⤵
  - Deletes itself
  - Accesses Microsoft Outlook profiles
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - outlook_office_path
  - outlook_win_path
  PID:2156

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1100-64-0x00000000028E0000-0x0000000002916000-memory.dmp

Filesize
216KB

Download
memory/1100-54-0x0000000000240000-0x0000000000247000-memory.dmp

Filesize
28KB

Download
memory/1100-56-0x0000000001ED0000-0x00000000022D0000-memory.dmp

Filesize
4.0MB

Download
memory/1100-55-0x0000000001ED0000-0x00000000022D0000-memory.dmp

Filesize
4.0MB

Download
memory/1100-58-0x00000000028E0000-0x0000000002916000-memory.dmp

Filesize
216KB

Download
memory/2156-67-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/2156-71-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/2156-66-0x0000000000130000-0x0000000000137000-memory.dmp

Filesize
28KB

Download
memory/2156-57-0x0000000000060000-0x0000000000063000-memory.dmp

Filesize
12KB

Download
memory/2156-68-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/2156-69-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/2156-70-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/2156-65-0x0000000000060000-0x0000000000063000-memory.dmp

Filesize
12KB

Download
memory/2156-73-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/2156-74-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/2156-75-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/2156-76-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/2156-78-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/2156-79-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download