masslogger | 839c500fe9fff02c0c70cd65bfce456f9efec4301b7d75ee478af939a08397c6

General

Target

SCAN 65003.exe
Size

812KB
MD5

0dce144cf6bcc62ec95d72a1cf626152
SHA1

4e00c89eb674ba5b2713555598fa8f9514ce305e
SHA256

6953bac97a3acd3fb014255896b3a0abc540cc5104c5b387d73c3fe795e2a059
SHA512

8fad13060c2242f26140fded8a844bfbd31df5b35562149222540eab75d3a2ffb74a827a91fc57ff4ef82187ad39d5ad88de8bdc703b6baa1411a2777f704582

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\0F48153F20\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.7.1 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.51 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 3:56:09 AM MassLogger Started: 5/21/2022 3:56:06 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\SCAN 65003.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/1212-137-0x0000000000400000-0x00000000004A8000-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:

SCAN 65003.exeSCAN 65003.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	SCAN 65003.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	SCAN 65003.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:

SCAN 65003.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SCAN 65003.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SCAN 65003.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SCAN 65003.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SCAN 65003.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SCAN 65003.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SCAN 65003.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SCAN 65003.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	SCAN 65003.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SCAN 65003.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SCAN 65003.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	SCAN 65003.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	SCAN 65003.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SCAN 65003.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	SCAN 65003.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	SCAN 65003.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	SCAN 65003.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SCAN 65003.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SCAN 65003.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

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

Processes:

SCAN 65003.exe

description pid process target process

PID 2684 set thread context of 1212 2684 SCAN 65003.exe SCAN 65003.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

884 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

SCAN 65003.exeSCAN 65003.exe

pid process

2684 SCAN 65003.exe
1212 SCAN 65003.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

SCAN 65003.exeSCAN 65003.exe

description pid process

Token: SeDebugPrivilege 2684 SCAN 65003.exe
Token: SeDebugPrivilege 1212 SCAN 65003.exe

flow	ioc
29	api.ipify.org

description	pid	process	target process
PID 2684 set thread context of 1212	2684	SCAN 65003.exe	SCAN 65003.exe

pid	process
884	schtasks.exe

pid	process
2684	SCAN 65003.exe
1212	SCAN 65003.exe

description	pid	process
Token: SeDebugPrivilege	2684	SCAN 65003.exe
Token: SeDebugPrivilege	1212	SCAN 65003.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

SCAN 65003.exe

description	pid	process	target process
PID 2684 wrote to memory of 884	2684	SCAN 65003.exe	schtasks.exe
PID 2684 wrote to memory of 884	2684	SCAN 65003.exe	schtasks.exe
PID 2684 wrote to memory of 884	2684	SCAN 65003.exe	schtasks.exe
PID 2684 wrote to memory of 1212	2684	SCAN 65003.exe	SCAN 65003.exe
PID 2684 wrote to memory of 1212	2684	SCAN 65003.exe	SCAN 65003.exe
PID 2684 wrote to memory of 1212	2684	SCAN 65003.exe	SCAN 65003.exe
PID 2684 wrote to memory of 1212	2684	SCAN 65003.exe	SCAN 65003.exe
PID 2684 wrote to memory of 1212	2684	SCAN 65003.exe	SCAN 65003.exe
PID 2684 wrote to memory of 1212	2684	SCAN 65003.exe	SCAN 65003.exe
PID 2684 wrote to memory of 1212	2684	SCAN 65003.exe	SCAN 65003.exe
PID 2684 wrote to memory of 1212	2684	SCAN 65003.exe	SCAN 65003.exe

outlook_office_path 1 IoCs

Processes:

SCAN 65003.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SCAN 65003.exe

outlook_win_path 1 IoCs

Processes:

SCAN 65003.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SCAN 65003.exe

C:\Users\Admin\AppData\Local\Temp\SCAN 65003.exe
"C:\Users\Admin\AppData\Local\Temp\SCAN 65003.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2684
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JRUsHwrwJLjc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp65FD.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:884
- C:\Users\Admin\AppData\Local\Temp\SCAN 65003.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:1212

Network

MITRE ATT&CK Enterprise 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

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp65FD.tmp

Filesize
1KB

MD5
2daa8119f899c406814b4324e7e0789b

SHA1
5c65a1e949e5ff34f7d778e9f519bcc58cca0d57

SHA256
55144763a6ed918b18a50b99ce7a411c080f73a1e68cbfdda149758b05e5b40d

SHA512
de33658ec6a7a59dc4d721e406e059d3578074cbe3bd557cbb3c4301eccbe27bd63985a1690610659f5a551c2b935aeab2c6b367ce6d647f6f56e395a629fdc3

Download Submit
memory/884-134-0x0000000000000000-mapping.dmp

Download
memory/1212-136-0x0000000000000000-mapping.dmp

Download
memory/1212-137-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1212-138-0x0000000005420000-0x0000000005486000-memory.dmp

Filesize
408KB

Download
memory/1212-139-0x0000000006B10000-0x0000000006B1A000-memory.dmp

Filesize
40KB

Download
memory/1212-140-0x0000000006B20000-0x0000000006B70000-memory.dmp

Filesize
320KB

Download
memory/2684-130-0x0000000000CB0000-0x0000000000D82000-memory.dmp

Filesize
840KB

Download
memory/2684-131-0x00000000055A0000-0x000000000563C000-memory.dmp

Filesize
624KB

Download
memory/2684-132-0x00000000056E0000-0x0000000005772000-memory.dmp

Filesize
584KB

Download
memory/2684-133-0x00000000076D0000-0x0000000007C74000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads