rhadamanthys | 1f53511b847a01a45e3d5d48f40dce79500175275dcf9606da1ee4864099ad8a

General

Target

g753nr4GI9.exe
Size

4.4MB
MD5

2131426d8a3c01e0073772820265b4bd
SHA1

bac33ac453609577cccd2c6b1fb4981ff634e795
SHA256

1f53511b847a01a45e3d5d48f40dce79500175275dcf9606da1ee4864099ad8a
SHA512

9a24b0a26fed3730d301a4c56412f2df7a7505184ba848b9a38f21af48fd82ed549b6d56383bf119c712b663900a006e2016e04e958e40c5f529a22fb7bfb22b
SSDEEP

98304:dAZV7FbE2iG0gOuw1AJRoFwL0BOS+HuNY:d6VtDvGjUS+HwY

Score

10^/10

rhadamanthys discovery evasion stealer themida trojan

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

Processes:

g753nr4GI9.exe

description pid process target process

PID 2196 created 2560 2196 g753nr4GI9.exe sihost.exe
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

g753nr4GI9.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ g753nr4GI9.exe

description	pid	process	target process
PID 2196 created 2560	2196	g753nr4GI9.exe	sihost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	g753nr4GI9.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

g753nr4GI9.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	g753nr4GI9.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	g753nr4GI9.exe

Deletes itself 1 IoCs

Processes:

openwith.exe

pid process

2276 openwith.exe

pid	process
2276	openwith.exe

Themida packer 6 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/2196-0-0x0000000000B80000-0x0000000001019000-memory.dmp	themida
behavioral1/memory/2196-2-0x0000000000B80000-0x0000000001019000-memory.dmp	themida
behavioral1/memory/2196-1-0x0000000000B80000-0x0000000001019000-memory.dmp	themida
behavioral1/memory/2196-3-0x0000000000B80000-0x0000000001019000-memory.dmp	themida
behavioral1/memory/2196-4-0x0000000000B80000-0x0000000001019000-memory.dmp	themida
behavioral1/memory/2196-16-0x0000000000B80000-0x0000000001019000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

g753nr4GI9.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA g753nr4GI9.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	g753nr4GI9.exe

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

Processes:

g753nr4GI9.exeopenwith.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	g753nr4GI9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	openwith.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

g753nr4GI9.exeopenwith.exe

pid process

2196 g753nr4GI9.exe
2196 g753nr4GI9.exe
2276 openwith.exe
2276 openwith.exe
2276 openwith.exe
2276 openwith.exe

pid	process
2196	g753nr4GI9.exe
2196	g753nr4GI9.exe
2276	openwith.exe
2276	openwith.exe
2276	openwith.exe
2276	openwith.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

g753nr4GI9.exe

description	pid	process	target process
PID 2196 wrote to memory of 2276	2196	g753nr4GI9.exe	openwith.exe
PID 2196 wrote to memory of 2276	2196	g753nr4GI9.exe	openwith.exe
PID 2196 wrote to memory of 2276	2196	g753nr4GI9.exe	openwith.exe
PID 2196 wrote to memory of 2276	2196	g753nr4GI9.exe	openwith.exe
PID 2196 wrote to memory of 2276	2196	g753nr4GI9.exe	openwith.exe

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2560
- C:\Windows\SysWOW64\openwith.exe
  "C:\Windows\system32\openwith.exe"
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2276

C:\Users\Admin\AppData\Local\Temp\g753nr4GI9.exe
"C:\Users\Admin\AppData\Local\Temp\g753nr4GI9.exe"
1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2196

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2196-8-0x00007FFE209F0000-0x00007FFE20BE5000-memory.dmp

Filesize
2.0MB

Download
memory/2196-16-0x0000000000B80000-0x0000000001019000-memory.dmp

Filesize
4.6MB

Download
memory/2196-0-0x0000000000B80000-0x0000000001019000-memory.dmp

Filesize
4.6MB

Download
memory/2196-3-0x0000000000B80000-0x0000000001019000-memory.dmp

Filesize
4.6MB

Download
memory/2196-4-0x0000000000B80000-0x0000000001019000-memory.dmp

Filesize
4.6MB

Download
memory/2196-6-0x00000000041E0000-0x00000000045E0000-memory.dmp

Filesize
4.0MB

Download
memory/2196-7-0x00000000041E0000-0x00000000045E0000-memory.dmp

Filesize
4.0MB

Download
memory/2196-5-0x00000000041E0000-0x00000000045E0000-memory.dmp

Filesize
4.0MB

Download
memory/2196-1-0x0000000000B80000-0x0000000001019000-memory.dmp

Filesize
4.6MB

Download
memory/2196-2-0x0000000000B80000-0x0000000001019000-memory.dmp

Filesize
4.6MB

Download
memory/2196-9-0x00000000041E0000-0x00000000045E0000-memory.dmp

Filesize
4.0MB

Download
memory/2196-11-0x0000000076FA0000-0x00000000771B5000-memory.dmp

Filesize
2.1MB

Download
memory/2276-22-0x00000000024B0000-0x00000000028B0000-memory.dmp

Filesize
4.0MB

Download
memory/2276-15-0x00000000024B0000-0x00000000028B0000-memory.dmp

Filesize
4.0MB

Download
memory/2276-17-0x00000000024B0000-0x00000000028B0000-memory.dmp

Filesize
4.0MB

Download
memory/2276-20-0x0000000076FA0000-0x00000000771B5000-memory.dmp

Filesize
2.1MB

Download
memory/2276-18-0x00007FFE209F0000-0x00007FFE20BE5000-memory.dmp

Filesize
2.0MB

Download
memory/2276-21-0x00000000024B0000-0x00000000028B0000-memory.dmp

Filesize
4.0MB

Download
memory/2276-12-0x0000000000800000-0x0000000000809000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads