masslogger | 30790fef99d6268954e9ed162242fd1b83e4d194a6a2c52bc4d1f7d4e8cc32eb

Analysis

max time kernel
72s
max time network
120s
platform
windows7_x64
resource
win7-20220414-en
submitted
21-05-2022 00:58

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General

Target

Attached is the new Order.exe
Size

888KB
MD5

cffaedf855277c8b700af88339101f60
SHA1

744fd4854ed7cc50777d09b91f3014036e4c9b94
SHA256

813fe52cdbffcab18b99e3927eefeee22211d239b62b851fa55c01b68d39962f
SHA512

7970d8bb2bb8e443e9475ed47725f8a3688f7c15a97c925c3829c2472ac22498eee738760c1f763679d08d2977eb3be398ff43f876e6507148b7fafb8cd44d8d

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: 5/21/2022 1:24:06 AM MassLogger Started: 5/21/2022 1:23:55 AM Interval: 9 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\Attached is the new 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

resource	yara_rule
behavioral1/memory/1972-60-0x0000000008200000-0x00000000082B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-64-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-65-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-66-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-67-0x00000000004AB61E-mapping.dmp	family_masslogger
behavioral1/memory/1408-69-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-71-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-73-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-75-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-77-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-79-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-81-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-83-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-85-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-87-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-89-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-91-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-93-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-95-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-97-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-99-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-101-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-103-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-105-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-107-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-109-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-111-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-113-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-115-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-117-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-119-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-121-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/1408-123-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger

MassLogger log file 1 IoCs

Detects a log file produced by MassLogger.

yara_rule
masslogger_log_file

Modifies visibility of file extensions in Explorer 2 TTPs
evasion

Hidden Files and Directories
T1158

Modify Registry
T1112

ReZer0 packer 1 IoCs

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

rezer0

resource	yara_rule
behavioral1/memory/1972-57-0x0000000005120000-0x00000000051D8000-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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Control Panel\International\Geo\Nation	Attached is the new 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

Accesses Microsoft Outlook profiles 1 TTPs 15 IoCs

collection

Email Collection

T1114

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

flow	ioc
4	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1972 set thread context of 1408	1972	Attached is the new Order.exe	29

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

pid	Process
1540	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1408	Attached is the new Order.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1972	Attached is the new Order.exe
1408	Attached is the new Order.exe
1408	Attached is the new Order.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1972	Attached is the new Order.exe
Token: SeDebugPrivilege	1408	Attached is the new Order.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1408	Attached is the new Order.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1972 wrote to memory of 1540	1972	Attached is the new Order.exe	27
PID 1972 wrote to memory of 1540	1972	Attached is the new Order.exe	27
PID 1972 wrote to memory of 1540	1972	Attached is the new Order.exe	27
PID 1972 wrote to memory of 1540	1972	Attached is the new Order.exe	27
PID 1972 wrote to memory of 1408	1972	Attached is the new Order.exe	29
PID 1972 wrote to memory of 1408	1972	Attached is the new Order.exe	29
PID 1972 wrote to memory of 1408	1972	Attached is the new Order.exe	29
PID 1972 wrote to memory of 1408	1972	Attached is the new Order.exe	29
PID 1972 wrote to memory of 1408	1972	Attached is the new Order.exe	29
PID 1972 wrote to memory of 1408	1972	Attached is the new Order.exe	29
PID 1972 wrote to memory of 1408	1972	Attached is the new Order.exe	29
PID 1972 wrote to memory of 1408	1972	Attached is the new Order.exe	29
PID 1972 wrote to memory of 1408	1972	Attached is the new Order.exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Attached is the new Order.exe

outlook_win_path 1 IoCs

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	Attached is the new Order.exe

C:\Users\Admin\AppData\Local\Temp\Attached is the new Order.exe
"C:\Users\Admin\AppData\Local\Temp\Attached is the new Order.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1972
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QbaxEomvINGkz" /XML "C:\Users\Admin\AppData\Local\Temp\tmp94C2.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1540
- C:\Users\Admin\AppData\Local\Temp\Attached is the new 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:1408

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\tmp94C2.tmp

Filesize
1KB

MD5
30b720c2f707b933b91aaeff82320002

SHA1
b292d402707739e6d8a6b7598364208e9b0a5c07

SHA256
54066962c642a8572d05f44bfb15dd180e5c72d9a22b49487b6e9924c0b3fb91

SHA512
2154903838417a93c007ecac3b667abc62ad412b48540b79c5ec08f634510857fb74b3c62b524835617de85b3cbf057d23cee2f89d5b5bb8e9d5bfb6a552018c

Download Submit
memory/1408-83-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-62-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-89-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-582-0x0000000000F85000-0x0000000000F96000-memory.dmp

Filesize
68KB

Download
memory/1408-580-0x0000000000720000-0x0000000000764000-memory.dmp

Filesize
272KB

Download
memory/1408-123-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-61-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-87-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-64-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-65-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-66-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-85-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-71-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-73-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-75-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-77-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-79-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-81-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-121-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-69-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-119-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-117-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-91-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-93-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-95-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-97-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-99-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-101-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-103-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-105-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-107-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-109-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-111-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-113-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1408-115-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1972-57-0x0000000005120000-0x00000000051D8000-memory.dmp

Filesize
736KB

Download
memory/1972-56-0x0000000000520000-0x0000000000528000-memory.dmp

Filesize
32KB

Download
memory/1972-54-0x00000000011B0000-0x0000000001294000-memory.dmp

Filesize
912KB

Download
memory/1972-60-0x0000000008200000-0x00000000082B0000-memory.dmp

Filesize
704KB

Download
memory/1972-55-0x0000000075FE1000-0x0000000075FE3000-memory.dmp

Filesize
8KB

Download