masslogger | c164654ca1dfb82339fc77a71dd10b14f0ae3ee59b3fc0778453da33594b7768

General

Target

PO 0856.exe
Size

826KB
MD5

d67f23392b5e1640bd691a86d77f3069
SHA1

4d5944a0a8ac2ae68caed78133958b8c4fdf1dbd
SHA256

54c429599d77052c7db47b68ac4c028065c4cabe7645ced48300a3ad774414ed
SHA512

b60d393e27f764ea7bcd43c43f67f58a9db326820382f6dc2b19660f09471bac0a9844b85030693af02101afd9ddca608dedcfff03c8ad99c4c25aa6a012c429

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\F95B724EDE\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.7.1 ################################################################# ### Logger Details ### User Name: Admin IP: 127.0.0.1 Location: United States Windows OS: Microsoft Windows 10 Pro64bit Windows Serial Key: W269N-WFGWX-YVC9B-4J6C9-T83GX CPU: Intel Core Processor (Broadwell) GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 2:42:33 PM MassLogger Started: 5/21/2022 2:42:19 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\PO 0856.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Signatures

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

MassLogger Main Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3788-138-0x0000000000400000-0x00000000004A8000-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 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

PO 0856.exePO 0856.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	PO 0856.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	PO 0856.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 18 IoCs

collection

Email Collection

T1114

Processes:

PO 0856.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO 0856.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO 0856.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	PO 0856.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	PO 0856.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO 0856.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO 0856.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO 0856.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	PO 0856.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO 0856.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	PO 0856.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO 0856.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	PO 0856.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	PO 0856.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO 0856.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO 0856.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO 0856.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO 0856.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO 0856.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

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

Processes:

PO 0856.exe

description pid process target process

PID 1140 set thread context of 3788 1140 PO 0856.exe PO 0856.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

2560 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

PO 0856.exePO 0856.exe

pid process

1140 PO 0856.exe
1140 PO 0856.exe
1140 PO 0856.exe
3788 PO 0856.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PO 0856.exePO 0856.exe

description pid process

Token: SeDebugPrivilege 1140 PO 0856.exe
Token: SeDebugPrivilege 3788 PO 0856.exe

flow	ioc
24	api.ipify.org

description	pid	process	target process
PID 1140 set thread context of 3788	1140	PO 0856.exe	PO 0856.exe

pid	process
2560	schtasks.exe

pid	process
1140	PO 0856.exe
1140	PO 0856.exe
1140	PO 0856.exe
3788	PO 0856.exe

description	pid	process
Token: SeDebugPrivilege	1140	PO 0856.exe
Token: SeDebugPrivilege	3788	PO 0856.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

PO 0856.exe

description	pid	process	target process
PID 1140 wrote to memory of 2560	1140	PO 0856.exe	schtasks.exe
PID 1140 wrote to memory of 2560	1140	PO 0856.exe	schtasks.exe
PID 1140 wrote to memory of 2560	1140	PO 0856.exe	schtasks.exe
PID 1140 wrote to memory of 3104	1140	PO 0856.exe	PO 0856.exe
PID 1140 wrote to memory of 3104	1140	PO 0856.exe	PO 0856.exe
PID 1140 wrote to memory of 3104	1140	PO 0856.exe	PO 0856.exe
PID 1140 wrote to memory of 3788	1140	PO 0856.exe	PO 0856.exe
PID 1140 wrote to memory of 3788	1140	PO 0856.exe	PO 0856.exe
PID 1140 wrote to memory of 3788	1140	PO 0856.exe	PO 0856.exe
PID 1140 wrote to memory of 3788	1140	PO 0856.exe	PO 0856.exe
PID 1140 wrote to memory of 3788	1140	PO 0856.exe	PO 0856.exe
PID 1140 wrote to memory of 3788	1140	PO 0856.exe	PO 0856.exe
PID 1140 wrote to memory of 3788	1140	PO 0856.exe	PO 0856.exe
PID 1140 wrote to memory of 3788	1140	PO 0856.exe	PO 0856.exe

outlook_office_path 1 IoCs

Processes:

PO 0856.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO 0856.exe

outlook_win_path 1 IoCs

Processes:

PO 0856.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO 0856.exe

C:\Users\Admin\AppData\Local\Temp\PO 0856.exe
"C:\Users\Admin\AppData\Local\Temp\PO 0856.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1140

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\swGthhEL" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF879.tmp"
2⤵
- Creates scheduled task(s)
PID:2560

C:\Users\Admin\AppData\Local\Temp\PO 0856.exe
"{path}"
2⤵
PID:3104

C:\Users\Admin\AppData\Local\Temp\PO 0856.exe
"{path}"
2⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3788

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\tmpF879.tmp
Filesize
1KB

MD5
8dc2c47c54c361276076319091a42f90

SHA1
b4f3697bb6ff23cfd705237af18d396386c94aa1

SHA256
e68a1a41f49f52d45605f22fcffd0c5a8cca84d071d1df073eb2f747f5c0337b

SHA512
810532aec29fd9b606d68aa47fb62bc7061c57bcabb8319dab6628975337de0677b568183cb71fe650106593b177bba55e103bed3f237cae637e5882220e1a6b

Download Submit
memory/1140-130-0x0000000000B20000-0x0000000000BF4000-memory.dmp

Filesize
848KB

Download
memory/1140-131-0x0000000005540000-0x00000000055DC000-memory.dmp

Filesize
624KB

Download
memory/1140-132-0x0000000005710000-0x00000000057A2000-memory.dmp

Filesize
584KB

Download
memory/1140-133-0x0000000007690000-0x0000000007C34000-memory.dmp

Filesize
5.6MB

Download
memory/2560-134-0x0000000000000000-mapping.dmp

Download
memory/3104-136-0x0000000000000000-mapping.dmp

Download
memory/3788-137-0x0000000000000000-mapping.dmp

Download
memory/3788-138-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/3788-139-0x00000000055B0000-0x0000000005616000-memory.dmp

Filesize
408KB

Download
memory/3788-140-0x0000000006EE0000-0x0000000006EEA000-memory.dmp

Filesize
40KB

Download
memory/3788-141-0x0000000007000000-0x0000000007050000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads