Behavioral Report

Resubmissions

23-01-2023 13:41

230123-qzjg9add79 10

27-12-2022 17:22

221227-vxl8ksfd97 10

27-12-2022 17:10

221227-vprhbsae8t 10

Analysis

max time kernel
42s
max time network
78s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
27-12-2022 17:10

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Report Files Registry Network Processes Mutex Misc

General

Target

VirtualBox 7.0-Download_Old_Builds - About - Documentation.exe
Size

727MB
MD5

8d10972d8f4c00b6811783823e2e3ec6
SHA1

f6c86e26b6e55c71a02ee932bb0bae7200feaae1
SHA256

ab378c4f2a52e1c4a5e199917e37a4d58a4f2c0d7585bb6f68f353d4018aba8c
SHA512

27636191bd6c1da31cf0fee717c6fd612b2b5aa8b65e9ffa85566852abc6e12860b89baf3e50aeb6b2138a220d3bc737e6fa53b16983de3d04df5a9c239bfb97
SSDEEP

12288:JgWkSNSTtX+5kOzIGgn/5HY5o8e3Fu3R+ZysWra9PtdBtSt6x4fOddti1ySgJly8:fkSy+510TnDPPvit6x4wi1ySgJlWVO

Score

10^/10

rhadamanthys collection discovery spyware stealer

Malware Config

Signatures

Detect rhadamanthys stealer shellcode 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/5092-137-0x00000000007D0000-0x00000000007ED000-memory.dmp	family_rhadamanthys
behavioral2/memory/5092-143-0x00000000007D0000-0x00000000007ED000-memory.dmp	family_rhadamanthys

Rhadamanthys
Rhadamanthys is an info stealer written in C++ first seen in August 2022.
stealer rhadamanthys
Blocklisted process makes network request 1 IoCs

Processes:

rundll32.exe

flow pid process

48 4816 rundll32.exe
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

4816 rundll32.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

TTPs:

Data from Local System Credentials in Files

flow	pid	process
48	4816	rundll32.exe

pid	process
4816	rundll32.exe

Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs

collection

TTPs:

Email Collection

Processes:

rundll32.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\10.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\11.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\12.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	rundll32.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

TTPs:

Query Registry
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

488 4816 WerFault.exe rundll32.exe

pid	pid_target	process	target process
488	4816	WerFault.exe	rundll32.exe

Checks processor information in registry 2 TTPs 2 IoCs

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

TTPs:

Query Registry System Information Discovery

Processes:

rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

rundll32.exe

pid process

4816 rundll32.exe
4816 rundll32.exe
4816 rundll32.exe
4816 rundll32.exe

pid	process
4816	rundll32.exe
4816	rundll32.exe
4816	rundll32.exe
4816	rundll32.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

VirtualBox 7.0-Download_Old_Builds - About - Documentation.exe

description	pid	process	target process
PID 5092 wrote to memory of 4816	5092	VirtualBox 7.0-Download_Old_Builds - About - Documentation.exe	rundll32.exe
PID 5092 wrote to memory of 4816	5092	VirtualBox 7.0-Download_Old_Builds - About - Documentation.exe	rundll32.exe

outlook_office_path 1 IoCs

Processes:

rundll32.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	rundll32.exe

outlook_win_path 1 IoCs

Processes:

rundll32.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\VirtualBox 7.0-Download_Old_Builds - About - Documentation.exe

"C:\Users\Admin\AppData\Local\Temp\VirtualBox 7.0-Download_Old_Builds - About - Documentation.exe"

Suspicious use of WriteProcessMemory

PID:5092

C:\Windows\system32\rundll32.exe

"C:\Users\Admin\AppData\Roaming\nsis_unse57b517.dll",PrintUIEntry |5CQkOhiAAAA|1TKr5GsMwYD|67sDqg8OAAl|xYmwxC0TNSO|1k8B3tZkgiyf2sAZQByAG4XAP9sADMAMgAuAOVkHwBs8|AtBUYAVfsAZyMAcgBXAHb|AFEAagB3AGnrAG87ADYtAllIg||sKOgEAgAASP+DxCjDzMzMTP+JRCQYSIlUJL8QSIlMJAhZAUj|i0QkMEiJBCT2fQE4SGsACEjHRNskEC0B6w59ARBI14PAAYsBEH0BQEjtOZIAcyWbA4sMJP9IA8hIi8FIi|VMpwFUdwAD0UiLf8qKCYgI68FiBb9lSIsEJWDz8DP|yUiLUBhIO9H|dDZIg8IgSIv|Akg7wnQqZoP|eEgYdRpMi0D|UGZBgzhrdAfuDRFLdQgNEHgQLv90BUiLAOvVSOuLSPkAwWYAQFNV|1ZXQVRBVUFW+0FXWQFmgTlNWv9Ni|hMi|JIi+|ZD4X88|BMY0n|PEGBPAlQRQDvAA+F6vPwQYuE+wmI8|CFwEiNPO8BD4TWZhGDvAndjC0BD4TH8|BEi|9nIESLXxyLd|8kRItPGEwD4f9MA9lIA|Ezyb9FhckPhKTz8E3|i8RBixBFM9L|SAPTigKEwHT|HUHByg0PvsDe9gABRAPQuxF17P9Bgfqq|A18dP8Og8EBSYPABP9BO8lzaevGi||BD7cMTkWLLP+LTAPrdFgz7b6mEHRRQYsUvQDT|zPJigJMi8Lrtw|BycQRA8jhEAH3QYoA0RDtM8Azn|ZBOwy23BCiAIP|xgGD+Ahy7uv|CkiLy0H|1UnfiQT3g8XgEMQE3ztvGHKvYgFBX|9BXkFdQVxfXvtdWy8XSIHsYAH+YACL6ehm|v||v0iFwA+EmXEgTPWNqwGLJxDIM||o|Zt5II1fBEyNRf9CM9KLy|9UJP1ofCBMi+APhGx6cSBFpBAzwIvTjSBfSIl8JCCiIHB8ID9Ii|APhExxIKIg|1BIjVYIRI1H30BIjYwkgRFIi+|Y6Hz9eiCNVkhq2iAQ3iHM8|DoZ+sgP0SLBo1XCD0goiC9WMYhiYQkgIMS3fbz8IsO1iBYiYwk2G0RAzCNIOgx6yBMi+9dOousKTJIi5z+FjJMiWQkOESNv2dsSTvsSIYgMHdMiVyAAYQk3IMR04aO4yHfIPCsE0iLb9Po5|wBMIqcczL3SI2EczJBgPMhv0mLzEQwGKACg7|pAXXzgbxzMiH|UmV4dUqLhCTd9B4xlCT48|ADwv9IO+hyNUE71P92MESNSUBJK0|UQbgAlACiIEDGIs|4dBdEtDC+MUiN+1NsjSBNK8TobO6AMEiLzqIgeEiFz|90FEyMMBcxSI3fTCRAugPz8P|XZ0iBxHAhXSQAAA==

Blocklisted process makes network request
Loads dropped DLL
Accesses Microsoft Outlook profiles
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
outlook_office_path
outlook_win_path

PID:4816

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 4816 -s 300

Program crash

PID:488

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -pss -s 176 -p 4816 -ip 4816

PID:3148

Network

MITRE ATT&CK Matrix

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Credential Access

Credentials in Files

T1081

Defense Evasion

Discovery

Query Registry

T1012

System Information Discovery

T1082

Execution

Exfiltration

Impact

Initial Access

Lateral Movement

Persistence

Privilege Escalation

Replay Monitor

00:00 00:00

Downloads

C:\Users\Admin\AppData\Roaming\nsis_unse57b517.dll
Filesize
58KB

MD5
664e46926466a2d4c9b87540f4853c39

SHA1
b172d1c2bde331770b0a944fcf6a9e2d75ded66b

SHA256
92a7c3296a561fb39798f821173e69d1feff44ff3a84caa4c6bb890945e79488

SHA512
1490ee65220c71a9f445df4b0f34d0c7bd3ece2e58253cfa3194d34e813843e0f71ea7bce0f0ae562a620334fdf3589262ca2f3209414936aa28a365db64ff03

Download Submit
C:\Users\Admin\AppData\Roaming\nsis_unse57b517.dll
Filesize
58KB

MD5
664e46926466a2d4c9b87540f4853c39

SHA1
b172d1c2bde331770b0a944fcf6a9e2d75ded66b

SHA256
92a7c3296a561fb39798f821173e69d1feff44ff3a84caa4c6bb890945e79488

SHA512
1490ee65220c71a9f445df4b0f34d0c7bd3ece2e58253cfa3194d34e813843e0f71ea7bce0f0ae562a620334fdf3589262ca2f3209414936aa28a365db64ff03

Download Submit
memory/4816-138-0x0000000000000000-mapping.dmp

Download
memory/4816-141-0x0000023ED8390000-0x0000023ED8397000-memory.dmp

Filesize
28KB

Download
memory/4816-142-0x00007FF42B5C0000-0x00007FF42B6BA000-memory.dmp

Filesize
1000KB

Download
memory/4816-144-0x00007FF42B5C0000-0x00007FF42B6BA000-memory.dmp

Filesize
1000KB

Download
memory/4816-145-0x0000000010000000-0x0000000010013000-memory.dmp

Filesize
76KB

Download
memory/5092-132-0x0000000000970000-0x00000000009A3000-memory.dmp

Filesize
204KB

Download
memory/5092-136-0x0000000000626000-0x0000000000629000-memory.dmp

Filesize
12KB

Download
memory/5092-137-0x00000000007D0000-0x00000000007ED000-memory.dmp

Filesize
116KB

Download
memory/5092-143-0x00000000007D0000-0x00000000007ED000-memory.dmp

Filesize
116KB

Download