894a461e0d709023ba6ec45f748b38a79ae12cf398702244ef2ffa93dd644133

Analysis

max time kernel
121s
max time network
128s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 06:15

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General

Target

ac8a85c32fe38766e828c75433d3224b193745001ab6adf37a374acf29aff5dc.exe
Size

219KB
MD5

6c8906d6dc989a4e2c6fe7ff12de1dd8
SHA1

3ff383a8634a0c707aa52f35fb0c87106d8bcba4
SHA256

ac8a85c32fe38766e828c75433d3224b193745001ab6adf37a374acf29aff5dc
SHA512

b3588457ef1e80f1cd63242180c632d65bfd3460ef3ba8443b9eabe375dcbf9eb596ffc00b0e95cbb104b33ba61fd183726b2dad29c9c458419a93729e1fdda2
SSDEEP

3072:QArRIzPm7i7x2KhtCqE5bpcqiieyAd9g8QwyZ0+tvCiJ86AR+xx7CG9eeIUVM:r4PO62KI5dcdield9grw0BH866cZeVx

Score

7^/10

collection discovery 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 3 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

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	checkip.dyndns.org
8	reallyfreegeoip.org
9	reallyfreegeoip.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1944 set thread context of 3056	1944	ac8a85c32fe38766e828c75433d3224b193745001ab6adf37a374acf29aff5dc.exe	30

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ac8a85c32fe38766e828c75433d3224b193745001ab6adf37a374acf29aff5dc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
3056	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3056	RegAsm.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1944 wrote to memory of 3056	1944	ac8a85c32fe38766e828c75433d3224b193745001ab6adf37a374acf29aff5dc.exe	30
PID 1944 wrote to memory of 3056	1944	ac8a85c32fe38766e828c75433d3224b193745001ab6adf37a374acf29aff5dc.exe	30
PID 1944 wrote to memory of 3056	1944	ac8a85c32fe38766e828c75433d3224b193745001ab6adf37a374acf29aff5dc.exe	30
PID 1944 wrote to memory of 3056	1944	ac8a85c32fe38766e828c75433d3224b193745001ab6adf37a374acf29aff5dc.exe	30
PID 1944 wrote to memory of 3056	1944	ac8a85c32fe38766e828c75433d3224b193745001ab6adf37a374acf29aff5dc.exe	30
PID 1944 wrote to memory of 3056	1944	ac8a85c32fe38766e828c75433d3224b193745001ab6adf37a374acf29aff5dc.exe	30
PID 1944 wrote to memory of 3056	1944	ac8a85c32fe38766e828c75433d3224b193745001ab6adf37a374acf29aff5dc.exe	30
PID 1944 wrote to memory of 3056	1944	ac8a85c32fe38766e828c75433d3224b193745001ab6adf37a374acf29aff5dc.exe	30
PID 1944 wrote to memory of 3056	1944	ac8a85c32fe38766e828c75433d3224b193745001ab6adf37a374acf29aff5dc.exe	30
PID 1944 wrote to memory of 3056	1944	ac8a85c32fe38766e828c75433d3224b193745001ab6adf37a374acf29aff5dc.exe	30
PID 1944 wrote to memory of 3056	1944	ac8a85c32fe38766e828c75433d3224b193745001ab6adf37a374acf29aff5dc.exe	30
PID 1944 wrote to memory of 3056	1944	ac8a85c32fe38766e828c75433d3224b193745001ab6adf37a374acf29aff5dc.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\ac8a85c32fe38766e828c75433d3224b193745001ab6adf37a374acf29aff5dc.exe
"C:\Users\Admin\AppData\Local\Temp\ac8a85c32fe38766e828c75433d3224b193745001ab6adf37a374acf29aff5dc.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1944
- 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
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3056

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/1944-0-0x0000000074C6E000-0x0000000074C6F000-memory.dmp

Filesize
4KB

Download
memory/1944-1-0x0000000000FC0000-0x0000000000FFE000-memory.dmp

Filesize
248KB

Download
memory/1944-2-0x00000000001F0000-0x0000000000226000-memory.dmp

Filesize
216KB

Download
memory/1944-3-0x0000000000350000-0x0000000000362000-memory.dmp

Filesize
72KB

Download
memory/1944-4-0x0000000074C60000-0x000000007534E000-memory.dmp

Filesize
6.9MB

Download
memory/1944-16-0x0000000074C60000-0x000000007534E000-memory.dmp

Filesize
6.9MB

Download
memory/3056-15-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3056-13-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3056-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3056-7-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3056-8-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3056-5-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3056-6-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3056-11-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download