masslogger | f2588711afc1b16c4f38d252abf2268c8a361662389f1ff95684dc2399d080b5

Analysis

max time kernel
77s
max time network
127s
platform
windows7_x64
resource
win7-20220414-en
submitted
20-05-2022 22:53

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Order.exe
Size

1.0MB
MD5

7b2459b644d4ea1b82ec773d24b56b6a
SHA1

c9cf3e67a03e2c2bca50143208f116278fc81c0b
SHA256

e2ab08680d318e3e0f2f8160cc951bd7bd81ef966d2f29f35c3bc3111f224455
SHA512

8a2ea33d35466f791372ceb745ef405d9986590ac2b6bb9618562a0268be136f4982b7bcb9d2f228178ff5c1bafd5d01b70f5b1e852eb84d48e96cbb0662e802

Score

10^/10

masslogger collection evasion ransomware rezer0 spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\79FE0CC911\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 7 Ultimate 64bit CPU: Intel Core Processor (Broadwell) GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/20/2022 11:05:56 PM MassLogger Started: 5/20/2022 11:05:45 PM Interval: 9 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\Order.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 Main Payload 33 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2044-61-0x0000000008C90000-0x0000000008D40000-memory.dmp	family_masslogger
behavioral1/memory/1400-65-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-66-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-67-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-68-0x00000000004AB61E-mapping.dmp	family_masslogger
behavioral1/memory/1400-70-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-72-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-74-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-76-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-78-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-80-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-82-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-84-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-86-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-88-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-90-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-92-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-94-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-96-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-98-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-100-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-102-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-104-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-106-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-108-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-110-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-112-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-114-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-116-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-118-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-120-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-122-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1400-124-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger

MassLogger log file 1 IoCs
Detects a log file produced by MassLogger.

Processes:

yara_rule

masslogger_log_file
Modifies visibility of file extensions in Explorer 2 TTPs
evasion

Hidden Files and Directories
T1158

Modify Registry
T1112

yara_rule
masslogger_log_file

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral1/memory/2044-58-0x0000000005430000-0x00000000054E8000-memory.dmp	rezer0

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:

Order.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Control Panel\International\Geo\Nation Order.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

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

Accesses Microsoft Outlook profiles 1 TTPs 15 IoCs

collection

Email Collection

T1114

Processes:

Order.exe

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

Order.exe

description pid process target process

PID 2044 set thread context of 1400 2044 Order.exe Order.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

1528 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

Order.exe

pid process

1400 Order.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

Order.exeOrder.exe

pid process

2044 Order.exe
2044 Order.exe
2044 Order.exe
1400 Order.exe
1400 Order.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Order.exeOrder.exe

description pid process

Token: SeDebugPrivilege 2044 Order.exe
Token: SeDebugPrivilege 1400 Order.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Order.exe

pid process

1400 Order.exe

flow	ioc
4	api.ipify.org

description	pid	process	target process
PID 2044 set thread context of 1400	2044	Order.exe	Order.exe

pid	process
1528	schtasks.exe

pid	process
1400	Order.exe

pid	process
2044	Order.exe
2044	Order.exe
2044	Order.exe
1400	Order.exe
1400	Order.exe

description	pid	process
Token: SeDebugPrivilege	2044	Order.exe
Token: SeDebugPrivilege	1400	Order.exe

pid	process
1400	Order.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

Order.exe

description	pid	process	target process
PID 2044 wrote to memory of 1528	2044	Order.exe	schtasks.exe
PID 2044 wrote to memory of 1528	2044	Order.exe	schtasks.exe
PID 2044 wrote to memory of 1528	2044	Order.exe	schtasks.exe
PID 2044 wrote to memory of 1528	2044	Order.exe	schtasks.exe
PID 2044 wrote to memory of 1400	2044	Order.exe	Order.exe
PID 2044 wrote to memory of 1400	2044	Order.exe	Order.exe
PID 2044 wrote to memory of 1400	2044	Order.exe	Order.exe
PID 2044 wrote to memory of 1400	2044	Order.exe	Order.exe
PID 2044 wrote to memory of 1400	2044	Order.exe	Order.exe
PID 2044 wrote to memory of 1400	2044	Order.exe	Order.exe
PID 2044 wrote to memory of 1400	2044	Order.exe	Order.exe
PID 2044 wrote to memory of 1400	2044	Order.exe	Order.exe
PID 2044 wrote to memory of 1400	2044	Order.exe	Order.exe

outlook_office_path 1 IoCs

Processes:

Order.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	Order.exe

outlook_win_path 1 IoCs

Processes:

Order.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	Order.exe

C:\Users\Admin\AppData\Local\Temp\Order.exe
"C:\Users\Admin\AppData\Local\Temp\Order.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2044

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\usZbtivxdoEvA" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB1D3.tmp"
2⤵
- Creates scheduled task(s)
PID:1528

C:\Users\Admin\AppData\Local\Temp\Order.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:1400

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Hidden Files and Directories

T1158

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB1D3.tmp

Filesize
1KB

MD5
93e2c11d224d07db86595ed1485e1e74

SHA1
898d4b6fea5ce2124c117a17f6b2486d0e029d7e

SHA256
ad06663178bd5fc8d0d96a38df097e526f1955bbca3849838e22ccf64bb3c348

SHA512
d2b1cd307b84a49c559d2d11752f37456187d97602cda5f179aab6cd92c2dc7c0403aa624391cc3542297bce3f1e0352b90fd7b8ea91c9b45bdcd230fefc0181

Download Submit
memory/1400-86-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-106-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-583-0x0000000000F05000-0x0000000000F16000-memory.dmp

Filesize
68KB

Download
memory/1400-84-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-124-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-122-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-120-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-62-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-63-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-65-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-66-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-67-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-68-0x00000000004AB61E-mapping.dmp

Download
memory/1400-70-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-72-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-88-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-76-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-78-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-80-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-82-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-581-0x0000000000500000-0x0000000000544000-memory.dmp

Filesize
272KB

Download
memory/1400-118-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-74-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-90-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-92-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-94-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-96-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-98-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-100-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-102-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-104-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-116-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-108-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-110-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-112-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1400-114-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1528-59-0x0000000000000000-mapping.dmp

Download
memory/2044-56-0x0000000075441000-0x0000000075443000-memory.dmp

Filesize
8KB

Download
memory/2044-58-0x0000000005430000-0x00000000054E8000-memory.dmp

Filesize
736KB

Download
memory/2044-61-0x0000000008C90000-0x0000000008D40000-memory.dmp

Filesize
704KB

Download
memory/2044-55-0x0000000006EB0000-0x0000000006F82000-memory.dmp

Filesize
840KB

Download
memory/2044-54-0x0000000000FB0000-0x00000000010BA000-memory.dmp

Filesize
1.0MB

Download
memory/2044-57-0x0000000000920000-0x0000000000928000-memory.dmp

Filesize
32KB

Download