masslogger | a2732b21dd81ef941e466656fe2f9e424abdfcd4dc1bf9798014adc5916c47a4

General

Target

Proforma invoice.exe
Size

1.0MB
MD5

29c4e4ad7504651cf1b82d2e5f6f3916
SHA1

8d24213b5d5a9256822882579b8e31697e8e8c2d
SHA256

14a6d8b3111df647667bfe418bfd55354a13e1b7b3f69e229d9495dc6fd6ab34
SHA512

34626fbe1e277f762f14bbbb763e5d02d5c5d456e03cd83c304d7fddef8f37ad0a7e53c86e21b902af6144c37dfabff7180ec6785517afe8dfc577e57a563de9

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

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

Family

masslogger

Ransom Note

<|| v2.4.0.0 ||> User Name: Admin IP: 154.61.71.51 Location: United States Windows OS: Microsoft Windows 10 Pro 64bit Windows Serial Key: W269N-WFGWX-YVC9B-4J6C9-T83GX CPU: Intel Core Processor (Broadwell) GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 11:37:16 AM MassLogger Started: 5/21/2022 11:37:13 AM Interval: 3 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\Proforma invoice.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| Downloader ||> Disabled <|| Window Searcher ||> Disabled <|| Bot Killer ||> Disabled <|| Search And Upload ||> Disabled <|| Telegram Desktop ||> Not Installed <|| Pidgin ||> Not Installed <|| FileZilla ||> Not Installed <|| Discord Tokken ||> Not Installed <|| NordVPN ||> Not Installed <|| Outlook ||> Not Installed <|| FoxMail ||> Not Installed <|| Thunderbird ||> Not Installed <|| FireFox ||> Not Found <|| QQ Browser ||> Not Installed <|| Chromium Recovery ||> Not Installed or Not Found <|| Keylogger And Clipboard ||> NA

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:

Proforma invoice.exeProforma invoice.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	Proforma invoice.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	Proforma invoice.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 42 IoCs

collection

Email Collection

T1114

Processes:

Proforma invoice.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook	Proforma invoice.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Proforma invoice.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook	Proforma invoice.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook	Proforma invoice.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook	Proforma invoice.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Proforma invoice.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook	Proforma invoice.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Proforma invoice.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Proforma invoice.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Proforma invoice.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Proforma invoice.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Proforma invoice.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Proforma invoice.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Proforma invoice.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Proforma invoice.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Proforma invoice.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Proforma invoice.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Proforma invoice.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Proforma invoice.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Proforma invoice.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Proforma invoice.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Proforma invoice.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook	Proforma invoice.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Proforma invoice.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Proforma invoice.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Proforma invoice.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Proforma invoice.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Proforma invoice.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook	Proforma invoice.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\19.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Proforma invoice.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Proforma invoice.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Proforma invoice.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Proforma invoice.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Proforma invoice.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Proforma invoice.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Proforma invoice.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Proforma invoice.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Proforma invoice.exe
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\19.0\Outlook\Profiles\Outlook	Proforma invoice.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Proforma invoice.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\17.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Proforma invoice.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\18.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Proforma invoice.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

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

Processes:

Proforma invoice.exe

description pid process target process

PID 2560 set thread context of 4444 2560 Proforma invoice.exe Proforma invoice.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

2624 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

Proforma invoice.exe

pid process

4444 Proforma invoice.exe

flow	ioc
45	api.ipify.org

description	pid	process	target process
PID 2560 set thread context of 4444	2560	Proforma invoice.exe	Proforma invoice.exe

pid	process
2624	schtasks.exe

pid	process
4444	Proforma invoice.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

Proforma invoice.exeProforma invoice.exe

pid	process
2560	Proforma invoice.exe
2560	Proforma invoice.exe
2560	Proforma invoice.exe
4444	Proforma invoice.exe
4444	Proforma invoice.exe
4444	Proforma invoice.exe
4444	Proforma invoice.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Proforma invoice.exeProforma invoice.exe

description pid process

Token: SeDebugPrivilege 2560 Proforma invoice.exe
Token: SeDebugPrivilege 4444 Proforma invoice.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Proforma invoice.exe

pid process

4444 Proforma invoice.exe

description	pid	process
Token: SeDebugPrivilege	2560	Proforma invoice.exe
Token: SeDebugPrivilege	4444	Proforma invoice.exe

pid	process
4444	Proforma invoice.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

Proforma invoice.exe

description	pid	process	target process
PID 2560 wrote to memory of 2624	2560	Proforma invoice.exe	schtasks.exe
PID 2560 wrote to memory of 2624	2560	Proforma invoice.exe	schtasks.exe
PID 2560 wrote to memory of 2624	2560	Proforma invoice.exe	schtasks.exe
PID 2560 wrote to memory of 4444	2560	Proforma invoice.exe	Proforma invoice.exe
PID 2560 wrote to memory of 4444	2560	Proforma invoice.exe	Proforma invoice.exe
PID 2560 wrote to memory of 4444	2560	Proforma invoice.exe	Proforma invoice.exe
PID 2560 wrote to memory of 4444	2560	Proforma invoice.exe	Proforma invoice.exe
PID 2560 wrote to memory of 4444	2560	Proforma invoice.exe	Proforma invoice.exe
PID 2560 wrote to memory of 4444	2560	Proforma invoice.exe	Proforma invoice.exe
PID 2560 wrote to memory of 4444	2560	Proforma invoice.exe	Proforma invoice.exe
PID 2560 wrote to memory of 4444	2560	Proforma invoice.exe	Proforma invoice.exe

outlook_office_path 1 IoCs

Processes:

Proforma invoice.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Office\20.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Proforma invoice.exe

outlook_win_path 1 IoCs

Processes:

Proforma invoice.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	Proforma invoice.exe

C:\Users\Admin\AppData\Local\Temp\Proforma invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Proforma invoice.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2560

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QOqjtbo" /XML "C:\Users\Admin\AppData\Local\Temp\tmp829D.tmp"
2⤵
- Creates scheduled task(s)
PID:2624

C:\Users\Admin\AppData\Local\Temp\Proforma invoice.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:4444

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

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Downloads

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

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp829D.tmp
Filesize
1KB

MD5
f2f3970c5884d5e735c862d14d456005

SHA1
5d91a1c763a656309d9242940a09258578ecece1

SHA256
871b3ac54fc396f7cb7c3094b695558aa8a0b0b6039231cd2aa27058a45d727f

SHA512
c4252ddc1a060032dc09088d372f4494d4e2b41873fdf709edc7c398dc2cfb0d1ae9ab0aa10144db01b9993c539839620e14cf0c1f6d1014afb551a0fa3130b3

Download Submit
memory/2560-130-0x00000000002B0000-0x00000000003BA000-memory.dmp

Filesize
1.0MB

Download
memory/2560-131-0x00000000051B0000-0x0000000005754000-memory.dmp

Filesize
5.6MB

Download
memory/2560-132-0x0000000004CA0000-0x0000000004D32000-memory.dmp

Filesize
584KB

Download
memory/2560-133-0x0000000004C20000-0x0000000004C2A000-memory.dmp

Filesize
40KB

Download
memory/2560-134-0x00000000078C0000-0x000000000795C000-memory.dmp

Filesize
624KB

Download
memory/2624-135-0x0000000000000000-mapping.dmp

Download
memory/4444-137-0x0000000000000000-mapping.dmp

Download
memory/4444-138-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/4444-140-0x0000000005690000-0x00000000056F6000-memory.dmp

Filesize
408KB

Download
memory/4444-141-0x0000000007100000-0x0000000007150000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads