masslogger | bc52fb733abe8c7201c916a18bf92214f50132eab17878203f2df63a44cb7d4c

General

Target

2020080495209.pdf.exe
Size

1.3MB
MD5

62a5098ca9b33099ef35ff4ab0d5b325
SHA1

bbfb15f6526e804150df582140c5697e7befb7e7
SHA256

f5e0fbe83739081ba2bc70e0aae26a0dd33358061b931f96e3ee12eefae90fbf
SHA512

bfe2deb4362178b7b25a61a227284578c49aca50601877b5f47568e1ed8a73a595043a6961f5b606b5e09c46b9c5b25508c43b2068a036c589396382ce8b0041

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\79FE0CC911\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v2.0.0.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.51 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 3:20:27 AM MassLogger Started: 5/21/2022 3:20:16 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\2020080495209.pdf.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.

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:

2020080495209.pdf.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Control Panel\International\Geo\Nation	2020080495209.pdf.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:

2020080495209.pdf.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2020080495209.pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2020080495209.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2020080495209.pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	2020080495209.pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	2020080495209.pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2020080495209.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2020080495209.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	2020080495209.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2020080495209.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2020080495209.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	2020080495209.pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	2020080495209.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2020080495209.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	2020080495209.pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2020080495209.pdf.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:

2020080495209.pdf.exe

description pid process target process

PID 1320 set thread context of 1836 1320 2020080495209.pdf.exe 2020080495209.pdf.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

1204 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

2020080495209.pdf.exe

pid process

1836 2020080495209.pdf.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

2020080495209.pdf.exe

pid process

1836 2020080495209.pdf.exe
1836 2020080495209.pdf.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

2020080495209.pdf.exe

description pid process

Token: SeDebugPrivilege 1836 2020080495209.pdf.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

2020080495209.pdf.exe

pid process

1836 2020080495209.pdf.exe

flow	ioc
4	api.ipify.org

description	pid	process	target process
PID 1320 set thread context of 1836	1320	2020080495209.pdf.exe	2020080495209.pdf.exe

pid	process
1204	schtasks.exe

pid	process
1836	2020080495209.pdf.exe

pid	process
1836	2020080495209.pdf.exe
1836	2020080495209.pdf.exe

description	pid	process
Token: SeDebugPrivilege	1836	2020080495209.pdf.exe

pid	process
1836	2020080495209.pdf.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

2020080495209.pdf.exe

description	pid	process	target process
PID 1320 wrote to memory of 1204	1320	2020080495209.pdf.exe	schtasks.exe
PID 1320 wrote to memory of 1204	1320	2020080495209.pdf.exe	schtasks.exe
PID 1320 wrote to memory of 1204	1320	2020080495209.pdf.exe	schtasks.exe
PID 1320 wrote to memory of 1204	1320	2020080495209.pdf.exe	schtasks.exe
PID 1320 wrote to memory of 1836	1320	2020080495209.pdf.exe	2020080495209.pdf.exe
PID 1320 wrote to memory of 1836	1320	2020080495209.pdf.exe	2020080495209.pdf.exe
PID 1320 wrote to memory of 1836	1320	2020080495209.pdf.exe	2020080495209.pdf.exe
PID 1320 wrote to memory of 1836	1320	2020080495209.pdf.exe	2020080495209.pdf.exe
PID 1320 wrote to memory of 1836	1320	2020080495209.pdf.exe	2020080495209.pdf.exe
PID 1320 wrote to memory of 1836	1320	2020080495209.pdf.exe	2020080495209.pdf.exe
PID 1320 wrote to memory of 1836	1320	2020080495209.pdf.exe	2020080495209.pdf.exe
PID 1320 wrote to memory of 1836	1320	2020080495209.pdf.exe	2020080495209.pdf.exe
PID 1320 wrote to memory of 1836	1320	2020080495209.pdf.exe	2020080495209.pdf.exe

outlook_office_path 1 IoCs

Processes:

2020080495209.pdf.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2020080495209.pdf.exe

outlook_win_path 1 IoCs

Processes:

2020080495209.pdf.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	2020080495209.pdf.exe

C:\Users\Admin\AppData\Local\Temp\2020080495209.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\2020080495209.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1320
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pPEzwiHTypPGTU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp80D.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1204
- C:\Users\Admin\AppData\Local\Temp\2020080495209.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\2020080495209.pdf.exe"
  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:1836

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\tmp80D.tmp

Filesize
1KB

MD5
3326d32fce8e11e9511201b84d441613

SHA1
ea7bdd56e559d3d8955ef72b91a4fac15f282203

SHA256
20aaf4c851b8442ba8fb4786c8b18b6ef28cd6d180c3c3f317c16fe6d28be31c

SHA512
0b749584fe1075ac8060a45fce386996e3dec5bdb82020510df7cbfa17d86e5a221d659c65bb47db8eea5b56ee10cd912dfc9d25adfea5469491464b635557d2

Download Submit
memory/1204-59-0x0000000000000000-mapping.dmp

Download
memory/1320-54-0x00000000012F0000-0x000000000144A000-memory.dmp

Filesize
1.4MB

Download
memory/1320-55-0x0000000075CD1000-0x0000000075CD3000-memory.dmp

Filesize
8KB

Download
memory/1320-56-0x0000000000300000-0x000000000030A000-memory.dmp

Filesize
40KB

Download
memory/1320-57-0x0000000001030000-0x00000000010D8000-memory.dmp

Filesize
672KB

Download
memory/1320-58-0x0000000004F40000-0x0000000004FCE000-memory.dmp

Filesize
568KB

Download
memory/1836-62-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/1836-61-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/1836-64-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/1836-65-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/1836-66-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/1836-67-0x000000000048937E-mapping.dmp

Download
memory/1836-69-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/1836-71-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/1836-72-0x00000000003C0000-0x0000000000404000-memory.dmp

Filesize
272KB

Download
memory/1836-74-0x00000000007B0000-0x00000000007C4000-memory.dmp

Filesize
80KB

Download
memory/1836-75-0x0000000000CB5000-0x0000000000CC6000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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