masslogger | 114f6ec5f4bf961c2cefd0640c19bf6c7efb1e59f6a58b289fe098e4db0074c0

General

Target

HCtR5cTfBBvX0Tt.exe
Size

956KB
MD5

946617f29b6f4d728a590d6eaae36126
SHA1

d06818f1f24d85e26d7159845076f346564253a0
SHA256

45ef1e51df38e6778aaf2cd726748b55459b4aa54a2c8c2fea445cab0885f7bc
SHA512

7204f1163662f391fe09c2637ca9c2e07e08bc1c047fab4e1594c49a37fb222093d86298c267cec9ee27f842f538f480c2bb8078ffea59c501f4777ff50a7d2f

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\0F48153F20\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.5.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.51 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 5:08:29 AM MassLogger Started: 5/21/2022 5:08:26 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\HCtR5cTfBBvX0Tt.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Extracted

Credentials

Protocol: smtp
Host:
mail.privateemail.com
Port:
587
Username:
[email protected]
Password:
@willsmith1.,

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:

HCtR5cTfBBvX0Tt.exeHCtR5cTfBBvX0Tt.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	HCtR5cTfBBvX0Tt.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	HCtR5cTfBBvX0Tt.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:

HCtR5cTfBBvX0Tt.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	HCtR5cTfBBvX0Tt.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	HCtR5cTfBBvX0Tt.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	HCtR5cTfBBvX0Tt.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HCtR5cTfBBvX0Tt.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HCtR5cTfBBvX0Tt.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HCtR5cTfBBvX0Tt.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	HCtR5cTfBBvX0Tt.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HCtR5cTfBBvX0Tt.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HCtR5cTfBBvX0Tt.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HCtR5cTfBBvX0Tt.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HCtR5cTfBBvX0Tt.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HCtR5cTfBBvX0Tt.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HCtR5cTfBBvX0Tt.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	HCtR5cTfBBvX0Tt.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HCtR5cTfBBvX0Tt.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	HCtR5cTfBBvX0Tt.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HCtR5cTfBBvX0Tt.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HCtR5cTfBBvX0Tt.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:

HCtR5cTfBBvX0Tt.exe

description pid process target process

PID 2416 set thread context of 2420 2416 HCtR5cTfBBvX0Tt.exe HCtR5cTfBBvX0Tt.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

1960 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

HCtR5cTfBBvX0Tt.exe

pid process

2420 HCtR5cTfBBvX0Tt.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

HCtR5cTfBBvX0Tt.exeHCtR5cTfBBvX0Tt.exe

pid process

2416 HCtR5cTfBBvX0Tt.exe
2416 HCtR5cTfBBvX0Tt.exe
2416 HCtR5cTfBBvX0Tt.exe
2416 HCtR5cTfBBvX0Tt.exe
2420 HCtR5cTfBBvX0Tt.exe
2420 HCtR5cTfBBvX0Tt.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

HCtR5cTfBBvX0Tt.exeHCtR5cTfBBvX0Tt.exe

description pid process

Token: SeDebugPrivilege 2416 HCtR5cTfBBvX0Tt.exe
Token: SeDebugPrivilege 2420 HCtR5cTfBBvX0Tt.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

HCtR5cTfBBvX0Tt.exe

pid process

2420 HCtR5cTfBBvX0Tt.exe

flow	ioc
33	api.ipify.org

description	pid	process	target process
PID 2416 set thread context of 2420	2416	HCtR5cTfBBvX0Tt.exe	HCtR5cTfBBvX0Tt.exe

pid	process
1960	schtasks.exe

pid	process
2420	HCtR5cTfBBvX0Tt.exe

pid	process
2416	HCtR5cTfBBvX0Tt.exe
2416	HCtR5cTfBBvX0Tt.exe
2416	HCtR5cTfBBvX0Tt.exe
2416	HCtR5cTfBBvX0Tt.exe
2420	HCtR5cTfBBvX0Tt.exe
2420	HCtR5cTfBBvX0Tt.exe

description	pid	process
Token: SeDebugPrivilege	2416	HCtR5cTfBBvX0Tt.exe
Token: SeDebugPrivilege	2420	HCtR5cTfBBvX0Tt.exe

pid	process
2420	HCtR5cTfBBvX0Tt.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

HCtR5cTfBBvX0Tt.exe

description	pid	process	target process
PID 2416 wrote to memory of 1960	2416	HCtR5cTfBBvX0Tt.exe	schtasks.exe
PID 2416 wrote to memory of 1960	2416	HCtR5cTfBBvX0Tt.exe	schtasks.exe
PID 2416 wrote to memory of 1960	2416	HCtR5cTfBBvX0Tt.exe	schtasks.exe
PID 2416 wrote to memory of 2352	2416	HCtR5cTfBBvX0Tt.exe	HCtR5cTfBBvX0Tt.exe
PID 2416 wrote to memory of 2352	2416	HCtR5cTfBBvX0Tt.exe	HCtR5cTfBBvX0Tt.exe
PID 2416 wrote to memory of 2352	2416	HCtR5cTfBBvX0Tt.exe	HCtR5cTfBBvX0Tt.exe
PID 2416 wrote to memory of 4648	2416	HCtR5cTfBBvX0Tt.exe	HCtR5cTfBBvX0Tt.exe
PID 2416 wrote to memory of 4648	2416	HCtR5cTfBBvX0Tt.exe	HCtR5cTfBBvX0Tt.exe
PID 2416 wrote to memory of 4648	2416	HCtR5cTfBBvX0Tt.exe	HCtR5cTfBBvX0Tt.exe
PID 2416 wrote to memory of 2420	2416	HCtR5cTfBBvX0Tt.exe	HCtR5cTfBBvX0Tt.exe
PID 2416 wrote to memory of 2420	2416	HCtR5cTfBBvX0Tt.exe	HCtR5cTfBBvX0Tt.exe
PID 2416 wrote to memory of 2420	2416	HCtR5cTfBBvX0Tt.exe	HCtR5cTfBBvX0Tt.exe
PID 2416 wrote to memory of 2420	2416	HCtR5cTfBBvX0Tt.exe	HCtR5cTfBBvX0Tt.exe
PID 2416 wrote to memory of 2420	2416	HCtR5cTfBBvX0Tt.exe	HCtR5cTfBBvX0Tt.exe
PID 2416 wrote to memory of 2420	2416	HCtR5cTfBBvX0Tt.exe	HCtR5cTfBBvX0Tt.exe
PID 2416 wrote to memory of 2420	2416	HCtR5cTfBBvX0Tt.exe	HCtR5cTfBBvX0Tt.exe
PID 2416 wrote to memory of 2420	2416	HCtR5cTfBBvX0Tt.exe	HCtR5cTfBBvX0Tt.exe

outlook_office_path 1 IoCs

Processes:

HCtR5cTfBBvX0Tt.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HCtR5cTfBBvX0Tt.exe

outlook_win_path 1 IoCs

Processes:

HCtR5cTfBBvX0Tt.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HCtR5cTfBBvX0Tt.exe

C:\Users\Admin\AppData\Local\Temp\HCtR5cTfBBvX0Tt.exe
"C:\Users\Admin\AppData\Local\Temp\HCtR5cTfBBvX0Tt.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2416

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AvKneptmDajjT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp46CD.tmp"
2⤵
- Creates scheduled task(s)
PID:1960

C:\Users\Admin\AppData\Local\Temp\HCtR5cTfBBvX0Tt.exe
"{path}"
2⤵
PID:2352

C:\Users\Admin\AppData\Local\Temp\HCtR5cTfBBvX0Tt.exe
"{path}"
2⤵
PID:4648

C:\Users\Admin\AppData\Local\Temp\HCtR5cTfBBvX0Tt.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:2420

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\Microsoft\CLR_v4.0_32\UsageLogs\HCtR5cTfBBvX0Tt.exe.log
Filesize
1KB

MD5
45242be47e5fefb0e8ca1070ed4d9b98

SHA1
42d6890eaae85ad3423231b13e6f96e1a93c8165

SHA256
d9bde55febcd84b87cbe03e0a754bf24337f479c55f9853f5e991e24e5da2b3f

SHA512
d0c7c161749ec6310733d16159be5af15614744749396d785f84652c74a1ca09b4418eac99f3edc6c5922d6e264ba9bdc219359878199fed6c05326041115ae8

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp46CD.tmp
Filesize
1KB

MD5
aceb099da45d4d877f20a51e16713f60

SHA1
916920a0dde15f0eb06c14a70db49aef26419809

SHA256
bd543b39939bd7185ae5807b796cacb76357568fb55cd251e3cd850aeec2db05

SHA512
dfd869d1d9c30a76332e8d85d78fe3354eb4bcc6f2fdca8dabf9bc6cf967b30241758d98c1249c02a525baeef7b69f04efdfa20d045b7d5e52cc40f2242ee93c

Download Submit
memory/1960-135-0x0000000000000000-mapping.dmp

Download
memory/2352-137-0x0000000000000000-mapping.dmp

Download
memory/2416-131-0x000000000B050000-0x000000000B0E2000-memory.dmp

Filesize
584KB

Download
memory/2416-132-0x000000000B6A0000-0x000000000BC44000-memory.dmp

Filesize
5.6MB

Download
memory/2416-133-0x0000000005440000-0x000000000544A000-memory.dmp

Filesize
40KB

Download
memory/2416-134-0x0000000005CE0000-0x0000000005D7C000-memory.dmp

Filesize
624KB

Download
memory/2416-130-0x0000000000F50000-0x0000000001048000-memory.dmp

Filesize
992KB

Download
memory/2420-163-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-171-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-139-0x0000000000000000-mapping.dmp

Download
memory/2420-143-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-145-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-147-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-149-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-151-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-153-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-155-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-157-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-159-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-161-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-653-0x0000000008190000-0x00000000081E0000-memory.dmp

Filesize
320KB

Download
memory/2420-165-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-167-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-169-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-140-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-175-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-173-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-177-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-179-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-181-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-183-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-185-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-187-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-189-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-191-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-193-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-195-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-197-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-199-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-201-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-203-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2420-652-0x0000000005630000-0x0000000005696000-memory.dmp

Filesize
408KB

Download
memory/4648-138-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads