masslogger | 749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14

General

Target

749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe
Size

1.0MB
MD5

95d9aabe858db996384260fb5b1f5733
SHA1

7eb8948df56ea27e21f08be892aa36936786ee79
SHA256

749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14
SHA512

1652ee398ef140b16e6e2e8477222579adbe6126b1a83089daf2586db54b2aff0dfcf0e2292b149477dd55dac9b85e47853b3eb893dea9b288c9fbc6aed72575

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\3B8E3C2477\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 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: 5/24/2022 4:38:29 PM MassLogger Started: 5/24/2022 4:38:13 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.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 log file 1 IoCs

Detects a log file produced by MassLogger.

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Control Panel\International\Geo\Nation	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe

Accesses Microsoft Outlook profiles 1 TTPs 9 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.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 1212 set thread context of 2036	1212	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe	30

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

pid	Process
952	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2036	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2036	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe
2036	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2036	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2036	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1212 wrote to memory of 952	1212	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe	28
PID 1212 wrote to memory of 952	1212	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe	28
PID 1212 wrote to memory of 952	1212	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe	28
PID 1212 wrote to memory of 952	1212	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe	28
PID 1212 wrote to memory of 2036	1212	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe	30
PID 1212 wrote to memory of 2036	1212	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe	30
PID 1212 wrote to memory of 2036	1212	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe	30
PID 1212 wrote to memory of 2036	1212	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe	30
PID 1212 wrote to memory of 2036	1212	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe	30
PID 1212 wrote to memory of 2036	1212	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe	30
PID 1212 wrote to memory of 2036	1212	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe	30
PID 1212 wrote to memory of 2036	1212	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe	30
PID 1212 wrote to memory of 2036	1212	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe

C:\Users\Admin\AppData\Local\Temp\749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe
"C:\Users\Admin\AppData\Local\Temp\749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1212
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UncTupoS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2675.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:952
- C:\Users\Admin\AppData\Local\Temp\749112fd2fc84f3f5c1da92a3c8c14ff6dbacde09dd63e25a04e425ba25bab14.exe
  "{path}"
  2⤵
  - Checks computer location settings
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  PID:2036

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

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/1212-54-0x0000000000DD0000-0x0000000000EE0000-memory.dmp

Filesize
1.1MB

Download
memory/1212-55-0x0000000000640000-0x0000000000656000-memory.dmp

Filesize
88KB

Download
memory/1212-56-0x00000000067A0000-0x000000000684E000-memory.dmp

Filesize
696KB

Download
memory/2036-67-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2036-69-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2036-59-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2036-64-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2036-70-0x00000000004B0000-0x00000000004F4000-memory.dmp

Filesize
272KB

Download
memory/2036-71-0x0000000075761000-0x0000000075763000-memory.dmp

Filesize
8KB

Download
memory/2036-63-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2036-62-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2036-60-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2036-72-0x0000000004D95000-0x0000000004DA6000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads