masslogger | 5751f943c8f15eae31446c0cd79482c84c164adb75bdc3600b1a4b00d6ab9316

Analysis

max time kernel
112s
max time network
152s
platform
windows7_x64
resource
win7-20220414-en
submitted
20/04/2022, 05:31

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General

Target

5751f943c8f15eae31446c0cd79482c84c164adb75bdc3600b1a4b00d6ab9316.exe
Size

825KB
MD5

292770f7aebc82296715706fd546eb46
SHA1

8f5c8b3644d524e83d81c282318876ac606991cc
SHA256

5751f943c8f15eae31446c0cd79482c84c164adb75bdc3600b1a4b00d6ab9316
SHA512

d5eb0ed8e31bc89a731304699e2b8d2dd09a52f12ae9d9b9503e376c18717513801d9227e0e3f7fec1b41d540dc61a9d51cee4807e2de9468119ac27fc7808ca

Score

10^/10

masslogger collection spyware stealer

Malware Config

Signatures

MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
stealer spyware masslogger

MassLogger Main Payload 6 IoCs

resource	yara_rule
behavioral1/memory/1956-64-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/1956-65-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/1956-66-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/1956-67-0x000000000048179E-mapping.dmp	family_masslogger
behavioral1/memory/1956-70-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/1956-72-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger

Executes dropped EXE 1 IoCs

pid	Process
1956	AddInProcess32.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Control Panel\International\Geo\Nation	AddInProcess32.exe

Loads dropped DLL 2 IoCs

pid	Process
1548	5751f943c8f15eae31446c0cd79482c84c164adb75bdc3600b1a4b00d6ab9316.exe
1548	5751f943c8f15eae31446c0cd79482c84c164adb75bdc3600b1a4b00d6ab9316.exe

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
T1081

Accesses Microsoft Outlook profiles 1 TTPs 35 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	AddInProcess32.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	AddInProcess32.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	AddInProcess32.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	AddInProcess32.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	AddInProcess32.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	AddInProcess32.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	AddInProcess32.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook	AddInProcess32.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook	AddInProcess32.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	AddInProcess32.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook	AddInProcess32.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook	AddInProcess32.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	AddInProcess32.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	AddInProcess32.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.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.

flow	ioc
4	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1548 set thread context of 1956	1548	5751f943c8f15eae31446c0cd79482c84c164adb75bdc3600b1a4b00d6ab9316.exe	27

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1548	5751f943c8f15eae31446c0cd79482c84c164adb75bdc3600b1a4b00d6ab9316.exe
1956	AddInProcess32.exe
1956	AddInProcess32.exe
1956	AddInProcess32.exe
320	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1548	5751f943c8f15eae31446c0cd79482c84c164adb75bdc3600b1a4b00d6ab9316.exe
Token: SeTakeOwnershipPrivilege	1548	5751f943c8f15eae31446c0cd79482c84c164adb75bdc3600b1a4b00d6ab9316.exe
Token: SeRestorePrivilege	1548	5751f943c8f15eae31446c0cd79482c84c164adb75bdc3600b1a4b00d6ab9316.exe
Token: SeDebugPrivilege	1956	AddInProcess32.exe
Token: SeDebugPrivilege	320	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1548 wrote to memory of 1956	1548	5751f943c8f15eae31446c0cd79482c84c164adb75bdc3600b1a4b00d6ab9316.exe	27
PID 1548 wrote to memory of 1956	1548	5751f943c8f15eae31446c0cd79482c84c164adb75bdc3600b1a4b00d6ab9316.exe	27
PID 1548 wrote to memory of 1956	1548	5751f943c8f15eae31446c0cd79482c84c164adb75bdc3600b1a4b00d6ab9316.exe	27
PID 1548 wrote to memory of 1956	1548	5751f943c8f15eae31446c0cd79482c84c164adb75bdc3600b1a4b00d6ab9316.exe	27
PID 1548 wrote to memory of 1956	1548	5751f943c8f15eae31446c0cd79482c84c164adb75bdc3600b1a4b00d6ab9316.exe	27
PID 1548 wrote to memory of 1956	1548	5751f943c8f15eae31446c0cd79482c84c164adb75bdc3600b1a4b00d6ab9316.exe	27
PID 1548 wrote to memory of 1956	1548	5751f943c8f15eae31446c0cd79482c84c164adb75bdc3600b1a4b00d6ab9316.exe	27
PID 1548 wrote to memory of 1956	1548	5751f943c8f15eae31446c0cd79482c84c164adb75bdc3600b1a4b00d6ab9316.exe	27
PID 1548 wrote to memory of 1956	1548	5751f943c8f15eae31446c0cd79482c84c164adb75bdc3600b1a4b00d6ab9316.exe	27
PID 1956 wrote to memory of 320	1956	AddInProcess32.exe	29
PID 1956 wrote to memory of 320	1956	AddInProcess32.exe	29
PID 1956 wrote to memory of 320	1956	AddInProcess32.exe	29
PID 1956 wrote to memory of 320	1956	AddInProcess32.exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe

C:\Users\Admin\AppData\Local\Temp\5751f943c8f15eae31446c0cd79482c84c164adb75bdc3600b1a4b00d6ab9316.exe
"C:\Users\Admin\AppData\Local\Temp\5751f943c8f15eae31446c0cd79482c84c164adb75bdc3600b1a4b00d6ab9316.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1548
- C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
  "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
  2⤵
  - Executes dropped EXE
  - Checks computer location settings
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  - outlook_win_path
  PID:1956
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "powershell" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe'
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:320

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe

Filesize
41KB

MD5
6a673bfc3b67ae9782cb31af2f234c68

SHA1
7544e89566d91e84e3cd437b9a073e5f6b56566e

SHA256
978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

SHA512
72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

Download Submit
C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe

Filesize
41KB

MD5
6a673bfc3b67ae9782cb31af2f234c68

SHA1
7544e89566d91e84e3cd437b9a073e5f6b56566e

SHA256
978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

SHA512
72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

Download Submit
\Users\Admin\AppData\Local\Temp\AddInProcess32.exe

Filesize
41KB

MD5
6a673bfc3b67ae9782cb31af2f234c68

SHA1
7544e89566d91e84e3cd437b9a073e5f6b56566e

SHA256
978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

SHA512
72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

Download Submit
\Users\Admin\AppData\Local\Temp\b35bc50e-fc56-4239-a7d0-bb79118b31c9\AgileDotNetRT.dll

Filesize
94KB

MD5
14ff402962ad21b78ae0b4c43cd1f194

SHA1
f8a510eb26666e875a5bdd1cadad40602763ad72

SHA256
fb9646cb956945bdc503e69645f6b5316d3826b780d3c36738d6b944e884d15b

SHA512
daa7a08bf3709119a944bce28f6ebdd24e54a22b18cd9f86a87873e958df121a3881dcdd5e162f6b4e543238c7aef20f657c9830df01d4c79290f7c9a4fcc54b

Download Submit
memory/320-78-0x000000006F3C0000-0x000000006F96B000-memory.dmp

Filesize
5.7MB

Download
memory/1548-54-0x0000000000FD0000-0x00000000010A4000-memory.dmp

Filesize
848KB

Download
memory/1548-57-0x0000000000960000-0x000000000097C000-memory.dmp

Filesize
112KB

Download
memory/1548-55-0x00000000759E1000-0x00000000759E3000-memory.dmp

Filesize
8KB

Download
memory/1548-56-0x0000000000310000-0x000000000033A000-memory.dmp

Filesize
168KB

Download
memory/1956-66-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1956-65-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1956-70-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1956-72-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1956-64-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1956-75-0x0000000000F85000-0x0000000000F96000-memory.dmp

Filesize
68KB

Download
memory/1956-62-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1956-61-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download