masslogger | b73eb50389b6053796e922d764b9fd8b94d90d21c8c885ae265e6092ed971dd8

General

Target

RFQ.exe
Size

899KB
MD5

87e11aa7db38adec3ae9bdf63bc503a4
SHA1

7adb67850e4e30293a685e0680930f7fa3d260ab
SHA256

b8892e7eafba52a3b311d7741d89363ec9d52b8d1fd180ea32385be609a6b9e8
SHA512

5bddae5ab76df3057cd6f2fa9adab6f12d254e74d21d253b59e84675029fa8b408a364b3ca55a2f4b7a08ec3b29ed0b98730ab425a63c5baa4f8f08b48e87fd7

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\8236ADF044\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.5.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.50 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 3:06:10 PM MassLogger Started: 5/21/2022 3:05:56 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\RFQ.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Extracted

Credentials

Protocol: smtp
Host:
mail.ucfblr.com
Port:
587
Username:
narasimha.murthy@ucfblr.com
Password:
Nam@123s#

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 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

RFQ.exeRFQ.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	RFQ.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	RFQ.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:

RFQ.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ.exe
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	RFQ.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ.exe
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	RFQ.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	RFQ.exe
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	RFQ.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	RFQ.exe
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	RFQ.exe
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ.exe
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ.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

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

Processes:

RFQ.exe

description pid process target process

PID 1908 set thread context of 1508 1908 RFQ.exe RFQ.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

4760 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

RFQ.exe

pid process

1508 RFQ.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

RFQ.exeRFQ.exe

pid process

1908 RFQ.exe
1508 RFQ.exe
1508 RFQ.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

RFQ.exeRFQ.exe

description pid process

Token: SeDebugPrivilege 1908 RFQ.exe
Token: SeDebugPrivilege 1508 RFQ.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RFQ.exe

pid process

1508 RFQ.exe

flow	ioc
54	api.ipify.org

description	pid	process	target process
PID 1908 set thread context of 1508	1908	RFQ.exe	RFQ.exe

pid	process
4760	schtasks.exe

pid	process
1508	RFQ.exe

pid	process
1908	RFQ.exe
1508	RFQ.exe
1508	RFQ.exe

description	pid	process
Token: SeDebugPrivilege	1908	RFQ.exe
Token: SeDebugPrivilege	1508	RFQ.exe

pid	process
1508	RFQ.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

RFQ.exe

description	pid	process	target process
PID 1908 wrote to memory of 4760	1908	RFQ.exe	schtasks.exe
PID 1908 wrote to memory of 4760	1908	RFQ.exe	schtasks.exe
PID 1908 wrote to memory of 4760	1908	RFQ.exe	schtasks.exe
PID 1908 wrote to memory of 1508	1908	RFQ.exe	RFQ.exe
PID 1908 wrote to memory of 1508	1908	RFQ.exe	RFQ.exe
PID 1908 wrote to memory of 1508	1908	RFQ.exe	RFQ.exe
PID 1908 wrote to memory of 1508	1908	RFQ.exe	RFQ.exe
PID 1908 wrote to memory of 1508	1908	RFQ.exe	RFQ.exe
PID 1908 wrote to memory of 1508	1908	RFQ.exe	RFQ.exe
PID 1908 wrote to memory of 1508	1908	RFQ.exe	RFQ.exe
PID 1908 wrote to memory of 1508	1908	RFQ.exe	RFQ.exe

outlook_office_path 1 IoCs

Processes:

RFQ.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ.exe

outlook_win_path 1 IoCs

Processes:

RFQ.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ.exe

C:\Users\Admin\AppData\Local\Temp\RFQ.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1908

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\snxnYBX" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAF89.tmp"
2⤵
- Creates scheduled task(s)
PID:4760

C:\Users\Admin\AppData\Local\Temp\RFQ.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:1508

Network

MITRE ATT&CK Matrix ATT&CK 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

1

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\RFQ.exe.log
Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpAF89.tmp
Filesize
1KB

MD5
8431ee21822ac46d57b25a05bf4cd003

SHA1
567eba3508326ff75467bb0878bffe0e77eae4d8

SHA256
89b010c93d489525f9db052588ffd5ffb2b81a99f9c7ebe75ba97ea68f32e8ac

SHA512
6aa4493abeca9fa6f02862b1541a0406ff28681fb3eea8d2070d72ffb86b2234eaff977cc2f6bd7f2b6c10e5bfcb2a7d7b82425efdc6c20c5ef3d9b2cf6a59ce

Download Submit
memory/1508-161-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-187-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-649-0x00000000081E0000-0x0000000008230000-memory.dmp

Filesize
320KB

Download
memory/1508-163-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-648-0x0000000005630000-0x0000000005696000-memory.dmp

Filesize
408KB

Download
memory/1508-169-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-138-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-167-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-141-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-143-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-145-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-147-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-149-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-151-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-153-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-155-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-157-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-159-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-201-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-165-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-199-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-197-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-137-0x0000000000000000-mapping.dmp

Download
memory/1508-171-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-173-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-175-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-177-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-179-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-181-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-183-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-185-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-195-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-189-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-191-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1508-193-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1908-133-0x0000000005490000-0x000000000549A000-memory.dmp

Filesize
40KB

Download
memory/1908-131-0x00000000058E0000-0x0000000005E84000-memory.dmp

Filesize
5.6MB

Download
memory/1908-130-0x0000000000950000-0x0000000000A36000-memory.dmp

Filesize
920KB

Download
memory/1908-132-0x00000000053E0000-0x0000000005472000-memory.dmp

Filesize
584KB

Download
memory/1908-134-0x0000000008E40000-0x0000000008EDC000-memory.dmp

Filesize
624KB

Download
memory/4760-135-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads