masslogger | bca6c3c07f81609227d409a774879977b2ef095834ca88ccb4c8716269ca854f

Analysis

max time kernel
130s
max time network
176s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
21-05-2022 01:36

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General

Target

SPECIFICATIONS.exe
Size

878KB
MD5

33c3551e8b1580ab7e9663b1c3e2c3f4
SHA1

6bd58b98d73b7d34487254354dcf07ec3a7b31e1
SHA256

ca946b7be994d2636254cb8b8cf44f5b7aa57fd705c6e07119aa4e68092daa01
SHA512

ff0eb8d158175c6f7cccb28791a4c090d5e047d9d792bd5bcf1e863d9e8d8adf0d2cbd3d89967d2d67b0de8b6ab496175a680c000fd1cf7a375ac7dd23cf5f72

Score

10^/10

masslogger collection evasion spyware stealer

Malware Config

Extracted

Credentials

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

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
Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

yara_rule
masslogger_log_file

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

SPECIFICATIONS.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	SPECIFICATIONS.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	SPECIFICATIONS.exe

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:

SPECIFICATIONS.exeSPECIFICATIONS.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	SPECIFICATIONS.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	SPECIFICATIONS.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:

SPECIFICATIONS.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SPECIFICATIONS.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SPECIFICATIONS.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SPECIFICATIONS.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SPECIFICATIONS.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	SPECIFICATIONS.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SPECIFICATIONS.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	SPECIFICATIONS.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SPECIFICATIONS.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	SPECIFICATIONS.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SPECIFICATIONS.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SPECIFICATIONS.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	SPECIFICATIONS.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SPECIFICATIONS.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook	SPECIFICATIONS.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SPECIFICATIONS.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SPECIFICATIONS.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SPECIFICATIONS.exe
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	SPECIFICATIONS.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

39 api.ipify.org

flow	ioc
39	api.ipify.org

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

SPECIFICATIONS.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	SPECIFICATIONS.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	SPECIFICATIONS.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

SPECIFICATIONS.exe

description pid process target process

PID 2628 set thread context of 3216 2628 SPECIFICATIONS.exe SPECIFICATIONS.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

3204 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

SPECIFICATIONS.exe

pid process

3216 SPECIFICATIONS.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

SPECIFICATIONS.exe

pid process

3216 SPECIFICATIONS.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

SPECIFICATIONS.exe

description pid process

Token: SeDebugPrivilege 3216 SPECIFICATIONS.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

SPECIFICATIONS.exe

pid process

3216 SPECIFICATIONS.exe

description	pid	process	target process
PID 2628 set thread context of 3216	2628	SPECIFICATIONS.exe	SPECIFICATIONS.exe

pid	process
3204	schtasks.exe

pid	process
3216	SPECIFICATIONS.exe

pid	process
3216	SPECIFICATIONS.exe

description	pid	process
Token: SeDebugPrivilege	3216	SPECIFICATIONS.exe

pid	process
3216	SPECIFICATIONS.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

SPECIFICATIONS.exe

description	pid	process	target process
PID 2628 wrote to memory of 3204	2628	SPECIFICATIONS.exe	schtasks.exe
PID 2628 wrote to memory of 3204	2628	SPECIFICATIONS.exe	schtasks.exe
PID 2628 wrote to memory of 3204	2628	SPECIFICATIONS.exe	schtasks.exe
PID 2628 wrote to memory of 3216	2628	SPECIFICATIONS.exe	SPECIFICATIONS.exe
PID 2628 wrote to memory of 3216	2628	SPECIFICATIONS.exe	SPECIFICATIONS.exe
PID 2628 wrote to memory of 3216	2628	SPECIFICATIONS.exe	SPECIFICATIONS.exe
PID 2628 wrote to memory of 3216	2628	SPECIFICATIONS.exe	SPECIFICATIONS.exe
PID 2628 wrote to memory of 3216	2628	SPECIFICATIONS.exe	SPECIFICATIONS.exe
PID 2628 wrote to memory of 3216	2628	SPECIFICATIONS.exe	SPECIFICATIONS.exe
PID 2628 wrote to memory of 3216	2628	SPECIFICATIONS.exe	SPECIFICATIONS.exe
PID 2628 wrote to memory of 3216	2628	SPECIFICATIONS.exe	SPECIFICATIONS.exe

outlook_office_path 1 IoCs

Processes:

SPECIFICATIONS.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SPECIFICATIONS.exe

outlook_win_path 1 IoCs

Processes:

SPECIFICATIONS.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	SPECIFICATIONS.exe

C:\Users\Admin\AppData\Local\Temp\SPECIFICATIONS.exe
"C:\Users\Admin\AppData\Local\Temp\SPECIFICATIONS.exe"
1⤵
- Checks BIOS information in registry
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2628
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lXmVlPI" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCE9F.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3204
- C:\Users\Admin\AppData\Local\Temp\SPECIFICATIONS.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:3216

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Credentials in Files

T1081

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\SPECIFICATIONS.exe.log

Filesize
1KB

MD5
e08f822522c617a40840c62e4b0fb45e

SHA1
ae516dca4da5234be6676d3f234c19ec55725be7

SHA256
bd9d5e9f7fe6fcff17d873555d4077d15f7d6cdda1183e7f7d278b735ffe1fd7

SHA512
894a7fb7bbc18ac6ba13378f58a7db80ad00d6080be9a66b01cae8e23e41d9d2d4cd53c1e20669356b73590c8a3ebfda4bdda3258f81240db56c4a81b7313fe4

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpCE9F.tmp

Filesize
1KB

MD5
b387dcf4f5d12c81fb1af68fbec1a0f3

SHA1
944bbc325040340471b757ef4025f23e191eed6a

SHA256
dc65184185665f39fbf6c4955b033546a7ec9268cc481ab55fa20443663f3e0c

SHA512
5b2cff431f6c8f374c6e0cd430c9b4bc94e83f13843064f076f1f63786e5c9a78af2472f6d964612b70da01a3984faeaa20a57eb0e4ddbf4a2d34db3c2ac3a83

Download Submit
memory/2628-132-0x0000000005640000-0x0000000005BE4000-memory.dmp

Filesize
5.6MB

Download
memory/2628-133-0x0000000004F80000-0x0000000005012000-memory.dmp

Filesize
584KB

Download
memory/2628-134-0x0000000005030000-0x000000000503A000-memory.dmp

Filesize
40KB

Download
memory/2628-135-0x0000000008BE0000-0x0000000008C7C000-memory.dmp

Filesize
624KB

Download
memory/2628-136-0x0000000008920000-0x0000000008986000-memory.dmp

Filesize
408KB

Download
memory/2628-131-0x0000000000500000-0x00000000005E2000-memory.dmp

Filesize
904KB

Download
memory/3204-137-0x0000000000000000-mapping.dmp

Download
memory/3216-161-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-173-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-143-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-145-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-147-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-149-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-151-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-153-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-155-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-157-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-159-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-139-0x0000000000000000-mapping.dmp

Download
memory/3216-163-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-165-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-167-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-169-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-171-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-140-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-175-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-177-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-179-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-181-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-183-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-185-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-189-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-187-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-191-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-193-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-195-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-197-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-199-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-201-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-203-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/3216-642-0x0000000007810000-0x0000000007860000-memory.dmp

Filesize
320KB

Download