masslogger | c35efac9d16552df2c7020672b7a1b10f18922aa7c52b1f2b9418a2fa2802570

General

Target

Erenrcompany.exe
Size

2.3MB
MD5

97ce671821460fdb8d39cafd4465cd90
SHA1

abcbc042a758985fd3ea04af3945de5f0944dc60
SHA256

50ff0aae0a9f7c1fc39e15483e5ebf8235d18c9d9ef2a5bd75a538c0a42e444e
SHA512

9d8b9e7ac98b77950fa904e83d7351ca5003145a7a3312d35ddd8d33d4ab853ac33cb87890538ae1212ca52c2e6f9d2853f79e1a4cf28ba079d6d1cad05df754

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\EEB932C954\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.3.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.13 Location: United States OS: Microsoft Windows 10 Pro64bit CPU: Intel Core Processor (Broadwell) GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 1:34:11 PM MassLogger Started: 5/21/2022 1:34:06 PM Interval: 2 hour MassLogger Process: C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe As Administrator: True

Extracted

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
m4cfund@yandex.com
Password:
Dmacdavid

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

Accesses Microsoft Outlook profiles 1 TTPs 18 IoCs

collection

Email Collection

T1114

Processes:

InstallUtil.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	InstallUtil.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

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

Processes:

Erenrcompany.exe

description pid process target process

PID 3112 set thread context of 2992 3112 Erenrcompany.exe InstallUtil.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

InstallUtil.exe

pid process

2992 InstallUtil.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Erenrcompany.exeInstallUtil.exe

pid process

3112 Erenrcompany.exe
3112 Erenrcompany.exe
3112 Erenrcompany.exe
2992 InstallUtil.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Erenrcompany.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 3112 Erenrcompany.exe
Token: SeDebugPrivilege 2992 InstallUtil.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

InstallUtil.exe

pid process

2992 InstallUtil.exe

flow	ioc
33	api.ipify.org

description	pid	process	target process
PID 3112 set thread context of 2992	3112	Erenrcompany.exe	InstallUtil.exe

pid	process
2992	InstallUtil.exe

pid	process
3112	Erenrcompany.exe
3112	Erenrcompany.exe
3112	Erenrcompany.exe
2992	InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	3112	Erenrcompany.exe
Token: SeDebugPrivilege	2992	InstallUtil.exe

pid	process
2992	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

Erenrcompany.exe

description	pid	process	target process
PID 3112 wrote to memory of 2992	3112	Erenrcompany.exe	InstallUtil.exe
PID 3112 wrote to memory of 2992	3112	Erenrcompany.exe	InstallUtil.exe
PID 3112 wrote to memory of 2992	3112	Erenrcompany.exe	InstallUtil.exe
PID 3112 wrote to memory of 2992	3112	Erenrcompany.exe	InstallUtil.exe
PID 3112 wrote to memory of 2992	3112	Erenrcompany.exe	InstallUtil.exe
PID 3112 wrote to memory of 2992	3112	Erenrcompany.exe	InstallUtil.exe
PID 3112 wrote to memory of 2992	3112	Erenrcompany.exe	InstallUtil.exe
PID 3112 wrote to memory of 2992	3112	Erenrcompany.exe	InstallUtil.exe

outlook_office_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\Erenrcompany.exe
"C:\Users\Admin\AppData\Local\Temp\Erenrcompany.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3112

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
2⤵
- 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:2992

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2992-165-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-139-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-643-0x00000000078D0000-0x000000000796C000-memory.dmp

Filesize
624KB

Download
memory/2992-642-0x00000000072F0000-0x0000000007340000-memory.dmp

Filesize
320KB

Download
memory/2992-134-0x0000000000000000-mapping.dmp

Download
memory/2992-169-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-137-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-167-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-141-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-143-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-145-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-147-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-149-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-151-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-153-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-155-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-157-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-159-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-161-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-163-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-641-0x0000000006970000-0x000000000697A000-memory.dmp

Filesize
40KB

Download
memory/2992-640-0x0000000006150000-0x00000000061B6000-memory.dmp

Filesize
408KB

Download
memory/2992-135-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-171-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-173-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-175-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-177-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-179-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-181-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-183-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-185-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-187-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-189-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-191-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-193-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-195-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2992-197-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/3112-131-0x0000000005F50000-0x00000000064F4000-memory.dmp

Filesize
5.6MB

Download
memory/3112-133-0x0000000007250000-0x0000000007294000-memory.dmp

Filesize
272KB

Download
memory/3112-130-0x0000000000D90000-0x0000000000FEE000-memory.dmp

Filesize
2.4MB

Download
memory/3112-132-0x0000000005AA0000-0x0000000005B32000-memory.dmp

Filesize
584KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads