masslogger | 3ecc0863d79785e8b6cb8bf003fcff6c41195e278aaed426ed26144b11d3710c

General

Target

PO_75463.exe
Size

821KB
MD5

0e39e0f49e3f74b7fe492f2f9b4e0969
SHA1

bc7fce8afc2a2d379e3e0714191dae859e3771a8
SHA256

b8ac4a45dbd25ba8bb4f71d53bb8615f6d00b9be95b6e976567377957d92c428
SHA512

a9b7539a91aa8593b5a15f2536069591e105ab75484a2bf3900aedbe9c2f6ab6bbed33ab000995f776471f51c86df17a17475c3997a000b854324d42eec4783c

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\AEF946DCB4\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.6.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.50 Location: United States Windows OS: Microsoft Windows 7 Ultimate 64bit Windows Serial Key: D4F6K-QK3RD-TMVMJ-BBMRX-3MBMV CPU: Intel Core Processor (Broadwell) GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 3:16:47 PM MassLogger Started: 5/21/2022 3:16:36 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\PO_75463.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Extracted

Credentials

Protocol: smtp
Host:
smtp.yandex.ru
Port:
587
Username:
cruizjames@yandex.ru
Password:
cruizjamesvhjkl@

Signatures

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

MassLogger Main Payload 32 IoCs

Processes:

resource	yara_rule
behavioral3/memory/976-63-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-64-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-65-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-66-0x00000000004ACD7E-mapping.dmp	family_masslogger
behavioral3/memory/976-68-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-70-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-72-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-74-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-76-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-78-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-80-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-82-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-84-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-86-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-88-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-90-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-92-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-94-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-96-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-98-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-100-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-102-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-104-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-106-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-108-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-112-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-116-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-118-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-120-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-114-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-110-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral3/memory/976-122-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger

MassLogger log file 1 IoCs
Detects a log file produced by MassLogger.

Processes:

yara_rule

masslogger_log_file

yara_rule
masslogger_log_file

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

Processes:

PO_75463.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\International\Geo\Nation	PO_75463.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 15 IoCs

collection

Email Collection

T1114

Processes:

PO_75463.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	PO_75463.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_75463.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	PO_75463.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_75463.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	PO_75463.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	PO_75463.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	PO_75463.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_75463.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_75463.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_75463.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_75463.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	PO_75463.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_75463.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_75463.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_75463.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

4 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

PO_75463.exe

description pid process target process

PID 1764 set thread context of 976 1764 PO_75463.exe PO_75463.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1540 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

PO_75463.exePO_75463.exe

pid process

1764 PO_75463.exe
976 PO_75463.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PO_75463.exePO_75463.exe

description pid process

Token: SeDebugPrivilege 1764 PO_75463.exe
Token: SeDebugPrivilege 976 PO_75463.exe

flow	ioc
4	api.ipify.org

description	pid	process	target process
PID 1764 set thread context of 976	1764	PO_75463.exe	PO_75463.exe

pid	process
1540	schtasks.exe

pid	process
1764	PO_75463.exe
976	PO_75463.exe

description	pid	process
Token: SeDebugPrivilege	1764	PO_75463.exe
Token: SeDebugPrivilege	976	PO_75463.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

PO_75463.exe

description	pid	process	target process
PID 1764 wrote to memory of 1540	1764	PO_75463.exe	schtasks.exe
PID 1764 wrote to memory of 1540	1764	PO_75463.exe	schtasks.exe
PID 1764 wrote to memory of 1540	1764	PO_75463.exe	schtasks.exe
PID 1764 wrote to memory of 1540	1764	PO_75463.exe	schtasks.exe
PID 1764 wrote to memory of 592	1764	PO_75463.exe	PO_75463.exe
PID 1764 wrote to memory of 592	1764	PO_75463.exe	PO_75463.exe
PID 1764 wrote to memory of 592	1764	PO_75463.exe	PO_75463.exe
PID 1764 wrote to memory of 592	1764	PO_75463.exe	PO_75463.exe
PID 1764 wrote to memory of 976	1764	PO_75463.exe	PO_75463.exe
PID 1764 wrote to memory of 976	1764	PO_75463.exe	PO_75463.exe
PID 1764 wrote to memory of 976	1764	PO_75463.exe	PO_75463.exe
PID 1764 wrote to memory of 976	1764	PO_75463.exe	PO_75463.exe
PID 1764 wrote to memory of 976	1764	PO_75463.exe	PO_75463.exe
PID 1764 wrote to memory of 976	1764	PO_75463.exe	PO_75463.exe
PID 1764 wrote to memory of 976	1764	PO_75463.exe	PO_75463.exe
PID 1764 wrote to memory of 976	1764	PO_75463.exe	PO_75463.exe
PID 1764 wrote to memory of 976	1764	PO_75463.exe	PO_75463.exe

outlook_office_path 1 IoCs

Processes:

PO_75463.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_75463.exe

outlook_win_path 1 IoCs

Processes:

PO_75463.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_75463.exe

C:\Users\Admin\AppData\Local\Temp\PO_75463.exe
"C:\Users\Admin\AppData\Local\Temp\PO_75463.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1764

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KSdCVEkTugesZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE63B.tmp"
2⤵
- Creates scheduled task(s)
PID:1540

C:\Users\Admin\AppData\Local\Temp\PO_75463.exe
"C:\Users\Admin\AppData\Local\Temp\PO_75463.exe"
2⤵
PID:592

C:\Users\Admin\AppData\Local\Temp\PO_75463.exe
"C:\Users\Admin\AppData\Local\Temp\PO_75463.exe"
2⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:976

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpE63B.tmp
Filesize
1KB

MD5
5e63b5f2696a002748505392a95bdac1

SHA1
c26168e3d513b9b41fff1da81d73ebe9d9b02254

SHA256
b5df0a757c589886a7f3608b5e53696b57f4f4e80c6cb99b4082c4cb12b19bcf

SHA512
8ca70ca32f5d7a0e2693738d288074109fc2de4a418a887ea6174b8308f167499ebc1cb3ed937f46c3a65a0166fc283fe4f1df06ebfb7b424724139a2a1ef061

Download Submit
memory/976-84-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-61-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-90-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-590-0x0000000000B80000-0x0000000000B94000-memory.dmp

Filesize
80KB

Download
memory/976-589-0x0000000000E95000-0x0000000000EA6000-memory.dmp

Filesize
68KB

Download
memory/976-60-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-63-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-88-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-64-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-65-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-66-0x00000000004ACD7E-mapping.dmp

Download
memory/976-68-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-86-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-72-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-74-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-76-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-78-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-80-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-82-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-587-0x00000000003C0000-0x0000000000404000-memory.dmp

Filesize
272KB

Download
memory/976-70-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-122-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-110-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-92-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-94-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-96-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-98-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-100-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-102-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-104-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-106-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-108-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-112-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-116-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-118-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-120-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/976-114-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1540-58-0x0000000000000000-mapping.dmp

Download
memory/1764-57-0x0000000074F91000-0x0000000074F93000-memory.dmp

Filesize
8KB

Download
memory/1764-56-0x0000000005370000-0x000000000542A000-memory.dmp

Filesize
744KB

Download
memory/1764-54-0x0000000000FE0000-0x00000000010B4000-memory.dmp

Filesize
848KB

Download
memory/1764-55-0x0000000000330000-0x0000000000342000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads