1afe857d1b5f2c0ff48ebbd2f32abf11f9b310416b1273e77adc7ee37f001ff8

Analysis

max time kernel
144s
max time network
161s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
07-01-2024 18:26

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General

Target

Samples 1/0dc8b4659b84d8d9b96e544279da980b36301253912a043b5e48c9bd7bb6e09f.exe
Size

349KB
MD5

0f3e1e309ee9dae28670d40e495566c1
SHA1

869988a2a32e1d83425fcf4b9ccc946368ac4768
SHA256

0dc8b4659b84d8d9b96e544279da980b36301253912a043b5e48c9bd7bb6e09f
SHA512

e25017d98af6bd527d200fcc5b0077c33b6610cfecbff68312abba21b0e0ab3dea208dd37de73705ba3210bf76cc1fd4148c943e9a64bbc05b16b8a099ff6dd9
SSDEEP

6144:t7s78K51VhaZ0zc9in+ZExwHNnIjKlMstZvF9w8kZelBs27dU:i8mhaqzkcxW0KmsXtTgelBs27m

Score

7^/10

collection spyware stealer

Malware Config

Signatures

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

53 checkip.dyndns.org

flow	ioc
53	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

Processes:

0dc8b4659b84d8d9b96e544279da980b36301253912a043b5e48c9bd7bb6e09f.exe

description	pid	process	target process
PID 5048 set thread context of 4648	5048	0dc8b4659b84d8d9b96e544279da980b36301253912a043b5e48c9bd7bb6e09f.exe	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegAsm.exe

pid process

4648 RegAsm.exe
4648 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 4648 RegAsm.exe

pid	process
4648	RegAsm.exe
4648	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	4648	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

0dc8b4659b84d8d9b96e544279da980b36301253912a043b5e48c9bd7bb6e09f.exe

description	pid	process	target process
PID 5048 wrote to memory of 4648	5048	0dc8b4659b84d8d9b96e544279da980b36301253912a043b5e48c9bd7bb6e09f.exe	RegAsm.exe
PID 5048 wrote to memory of 4648	5048	0dc8b4659b84d8d9b96e544279da980b36301253912a043b5e48c9bd7bb6e09f.exe	RegAsm.exe
PID 5048 wrote to memory of 4648	5048	0dc8b4659b84d8d9b96e544279da980b36301253912a043b5e48c9bd7bb6e09f.exe	RegAsm.exe
PID 5048 wrote to memory of 4648	5048	0dc8b4659b84d8d9b96e544279da980b36301253912a043b5e48c9bd7bb6e09f.exe	RegAsm.exe
PID 5048 wrote to memory of 4648	5048	0dc8b4659b84d8d9b96e544279da980b36301253912a043b5e48c9bd7bb6e09f.exe	RegAsm.exe
PID 5048 wrote to memory of 4648	5048	0dc8b4659b84d8d9b96e544279da980b36301253912a043b5e48c9bd7bb6e09f.exe	RegAsm.exe
PID 5048 wrote to memory of 4648	5048	0dc8b4659b84d8d9b96e544279da980b36301253912a043b5e48c9bd7bb6e09f.exe	RegAsm.exe
PID 5048 wrote to memory of 4648	5048	0dc8b4659b84d8d9b96e544279da980b36301253912a043b5e48c9bd7bb6e09f.exe	RegAsm.exe

outlook_office_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\Samples 1\0dc8b4659b84d8d9b96e544279da980b36301253912a043b5e48c9bd7bb6e09f.exe
"C:\Users\Admin\AppData\Local\Temp\Samples 1\0dc8b4659b84d8d9b96e544279da980b36301253912a043b5e48c9bd7bb6e09f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5048

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4648

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/4648-13-0x0000000005A70000-0x0000000005A80000-memory.dmp

Filesize
64KB

Download
memory/4648-18-0x0000000005A70000-0x0000000005A80000-memory.dmp

Filesize
64KB

Download
memory/4648-17-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/4648-16-0x0000000006940000-0x000000000694A000-memory.dmp

Filesize
40KB

Download
memory/4648-15-0x0000000006AD0000-0x0000000006C92000-memory.dmp

Filesize
1.8MB

Download
memory/4648-14-0x00000000067B0000-0x0000000006800000-memory.dmp

Filesize
320KB

Download
memory/4648-11-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/4648-9-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/5048-4-0x0000000004AE0000-0x0000000004B34000-memory.dmp

Filesize
336KB

Download
memory/5048-12-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/5048-7-0x0000000004C30000-0x0000000004C40000-memory.dmp

Filesize
64KB

Download
memory/5048-8-0x0000000004BC0000-0x0000000004BCA000-memory.dmp

Filesize
40KB

Download
memory/5048-6-0x0000000005500000-0x000000000559C000-memory.dmp

Filesize
624KB

Download
memory/5048-5-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/5048-1-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/5048-3-0x0000000004A40000-0x0000000004AD2000-memory.dmp

Filesize
584KB

Download
memory/5048-2-0x0000000004F50000-0x00000000054F4000-memory.dmp

Filesize
5.6MB

Download
memory/5048-0-0x0000000000110000-0x000000000016E000-memory.dmp

Filesize
376KB

Download