masslogger | ade8bfcf1415da45b6137e1e3f610caf22d333cc70d4eb52d7e22131d212461b

General

Target

DEBIT NOTE - SAOFEM20050027pdf.exe
Size

962KB
MD5

ad18e53571ae5be2cc2bd0fafd484da2
SHA1

bf175030caf9f23129a63262d9aa345dab620a12
SHA256

92a7c4b4694b3849c97651e3c5713eedbf3e9a5f157724d6ca9047b05ed0e3d9
SHA512

c1b66d8088c5000d72b3a138493321d1224e14133c3e3f425823b27716fec86012dde25c3037c373c87d5c321c04b57ee4acf6dc588134664bbfb54c5eac9aaa
SSDEEP

24576:TQe6H3aJa0ir1T/tphJqlibPiEj3z1dHK1Wi:E7H3aaxT/Tqlib7z3q1l

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\19D9201D49\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.7.1 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.13 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: 12/8/2022 11:28:48 PM MassLogger Started: 12/8/2022 11:28:41 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\DEBIT NOTE - SAOFEM20050027pdf.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 6 IoCs

resource	yara_rule
behavioral1/memory/1088-63-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/1088-64-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/1088-65-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/1088-66-0x00000000004A2FFE-mapping.dmp	family_masslogger
behavioral1/memory/1088-68-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/1088-70-0x0000000000400000-0x00000000004A8000-memory.dmp	family_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-1-5-21-2292972927-2705560509-2768824231-1000\Control Panel\International\Geo\Nation	DEBIT NOTE - SAOFEM20050027pdf.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

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DEBIT NOTE - SAOFEM20050027pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	DEBIT NOTE - SAOFEM20050027pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DEBIT NOTE - SAOFEM20050027pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DEBIT NOTE - SAOFEM20050027pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	DEBIT NOTE - SAOFEM20050027pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DEBIT NOTE - SAOFEM20050027pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DEBIT NOTE - SAOFEM20050027pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DEBIT NOTE - SAOFEM20050027pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DEBIT NOTE - SAOFEM20050027pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	DEBIT NOTE - SAOFEM20050027pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DEBIT NOTE - SAOFEM20050027pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	DEBIT NOTE - SAOFEM20050027pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	DEBIT NOTE - SAOFEM20050027pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DEBIT NOTE - SAOFEM20050027pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	DEBIT NOTE - SAOFEM20050027pdf.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 1632 set thread context of 1088	1632	DEBIT NOTE - SAOFEM20050027pdf.exe	29

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
1340	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1088	DEBIT NOTE - SAOFEM20050027pdf.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1632	DEBIT NOTE - SAOFEM20050027pdf.exe
1632	DEBIT NOTE - SAOFEM20050027pdf.exe
1632	DEBIT NOTE - SAOFEM20050027pdf.exe
1088	DEBIT NOTE - SAOFEM20050027pdf.exe
1088	DEBIT NOTE - SAOFEM20050027pdf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1632	DEBIT NOTE - SAOFEM20050027pdf.exe
Token: SeDebugPrivilege	1088	DEBIT NOTE - SAOFEM20050027pdf.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1088	DEBIT NOTE - SAOFEM20050027pdf.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1632 wrote to memory of 1340	1632	DEBIT NOTE - SAOFEM20050027pdf.exe	27
PID 1632 wrote to memory of 1340	1632	DEBIT NOTE - SAOFEM20050027pdf.exe	27
PID 1632 wrote to memory of 1340	1632	DEBIT NOTE - SAOFEM20050027pdf.exe	27
PID 1632 wrote to memory of 1340	1632	DEBIT NOTE - SAOFEM20050027pdf.exe	27
PID 1632 wrote to memory of 1088	1632	DEBIT NOTE - SAOFEM20050027pdf.exe	29
PID 1632 wrote to memory of 1088	1632	DEBIT NOTE - SAOFEM20050027pdf.exe	29
PID 1632 wrote to memory of 1088	1632	DEBIT NOTE - SAOFEM20050027pdf.exe	29
PID 1632 wrote to memory of 1088	1632	DEBIT NOTE - SAOFEM20050027pdf.exe	29
PID 1632 wrote to memory of 1088	1632	DEBIT NOTE - SAOFEM20050027pdf.exe	29
PID 1632 wrote to memory of 1088	1632	DEBIT NOTE - SAOFEM20050027pdf.exe	29
PID 1632 wrote to memory of 1088	1632	DEBIT NOTE - SAOFEM20050027pdf.exe	29
PID 1632 wrote to memory of 1088	1632	DEBIT NOTE - SAOFEM20050027pdf.exe	29
PID 1632 wrote to memory of 1088	1632	DEBIT NOTE - SAOFEM20050027pdf.exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DEBIT NOTE - SAOFEM20050027pdf.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DEBIT NOTE - SAOFEM20050027pdf.exe

C:\Users\Admin\AppData\Local\Temp\DEBIT NOTE - SAOFEM20050027pdf.exe
"C:\Users\Admin\AppData\Local\Temp\DEBIT NOTE - SAOFEM20050027pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1632
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\&startupname&" /XML "C:\Users\Admin\AppData\Local\Temp\tmp26B4.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1340
- C:\Users\Admin\AppData\Local\Temp\DEBIT NOTE - SAOFEM20050027pdf.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
  - outlook_win_path
  PID:1088

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\tmp26B4.tmp

Filesize
1KB

MD5
0712ef8a3ff4f54f0cb59ace0d3a69fd

SHA1
d0a4bfa17d982f69010b0f31d44935f12d5428ae

SHA256
6d12cc1833633d0ac480ad331e177ac33da40f0f4f318b995eb12054143b8ec1

SHA512
81f03e24c639e6aa1ae1d86e32839f056026099533369cd5625907c71512a327320c23d0fff4801ba7f3a898841df5474bb57c3a8e03eceae40b626718b3e732

Download Submit
memory/1088-68-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1088-71-0x00000000004B0000-0x00000000004F4000-memory.dmp

Filesize
272KB

Download
memory/1088-64-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1088-74-0x0000000004DB5000-0x0000000004DC6000-memory.dmp

Filesize
68KB

Download
memory/1088-65-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1088-60-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1088-61-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1088-73-0x0000000004DB5000-0x0000000004DC6000-memory.dmp

Filesize
68KB

Download
memory/1088-72-0x0000000075B41000-0x0000000075B43000-memory.dmp

Filesize
8KB

Download
memory/1088-63-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1088-70-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1632-54-0x0000000000A60000-0x0000000000B56000-memory.dmp

Filesize
984KB

Download
memory/1632-56-0x00000000050F0000-0x00000000051B0000-memory.dmp

Filesize
768KB

Download
memory/1632-55-0x00000000004F0000-0x00000000004F8000-memory.dmp

Filesize
32KB

Download
memory/1632-57-0x00000000042B0000-0x0000000004362000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads