masslogger | e398d25e5ee3fa2ef17eda10103e1c39c7ddc36b9ccd06d3de5c1cc25141fe76

Analysis

max time kernel
79s
max time network
122s
platform
windows7_x64
resource
win7-20220414-en
submitted
21-05-2022 01:58

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General

Target

order.exe
Size

1.3MB
MD5

db0fbf9c80238f34c22726ca4bfa6759
SHA1

d1fd22f57ad0fb02f0f8ac4d31b31d2f191e0f27
SHA256

a643a629e8acc513e9c6d51842fe1775208b64c4e1e20036fa52b7038ecf2c25
SHA512

226138cca5053dd91cb08b3d30dd34f37074e63cd698e676092374f1468d0a8045b42c1ec1f224d59a06324f268676771c068bb181b48f597ee9eed60d7eaf62

Score

10^/10

masslogger collection coreentity ransomware rezer0 spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\AEF946DCB4\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.5.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.50 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 5:01:48 AM MassLogger Started: 5/21/2022 5:01:38 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\order.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Extracted

Credentials

Protocol: smtp
Host:
smtp.gmail.com
Port:
587
Username:
[email protected]
Password:
chinelomywife2018

Signatures

CoreEntity .NET Packer 1 IoCs

A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

coreentity

Processes:

resource	yara_rule
behavioral1/memory/1596-57-0x00000000002B0000-0x00000000002B8000-memory.dmp	coreentity

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/1596-61-0x0000000004DE0000-0x0000000004E90000-memory.dmp	family_masslogger
behavioral1/memory/932-65-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-66-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-67-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-68-0x00000000004AB6EE-mapping.dmp	family_masslogger
behavioral1/memory/932-70-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-72-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-74-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-76-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-78-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-80-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-82-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-84-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-86-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-88-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-94-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-92-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-98-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-96-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-100-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-90-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-102-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-106-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-104-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-110-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-108-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-112-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-114-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-116-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-118-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-122-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-124-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/932-120-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger

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

Processes:

yara_rule

masslogger_log_file

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/1596-58-0x0000000004400000-0x00000000044B8000-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-1-5-21-1083475884-596052423-1669053738-1000\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-1-5-21-1083475884-596052423-1669053738-1000\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 created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	order.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	order.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	order.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	order.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	order.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	order.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	order.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	order.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	order.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	order.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	order.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	order.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	order.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	order.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	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 1596 set thread context of 932 1596 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

1192 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

order.exe

pid process

932 order.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

order.exe

pid process

932 order.exe
932 order.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

order.exeorder.exe

description pid process

Token: SeDebugPrivilege 1596 order.exe
Token: SeDebugPrivilege 932 order.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

order.exe

pid process

932 order.exe

flow	ioc
4	api.ipify.org

description	pid	process	target process
PID 1596 set thread context of 932	1596	order.exe	order.exe

pid	process
1192	schtasks.exe

pid	process
932	order.exe

pid	process
932	order.exe
932	order.exe

description	pid	process
Token: SeDebugPrivilege	1596	order.exe
Token: SeDebugPrivilege	932	order.exe

pid	process
932	order.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

order.exe

description	pid	process	target process
PID 1596 wrote to memory of 1192	1596	order.exe	schtasks.exe
PID 1596 wrote to memory of 1192	1596	order.exe	schtasks.exe
PID 1596 wrote to memory of 1192	1596	order.exe	schtasks.exe
PID 1596 wrote to memory of 1192	1596	order.exe	schtasks.exe
PID 1596 wrote to memory of 932	1596	order.exe	order.exe
PID 1596 wrote to memory of 932	1596	order.exe	order.exe
PID 1596 wrote to memory of 932	1596	order.exe	order.exe
PID 1596 wrote to memory of 932	1596	order.exe	order.exe
PID 1596 wrote to memory of 932	1596	order.exe	order.exe
PID 1596 wrote to memory of 932	1596	order.exe	order.exe
PID 1596 wrote to memory of 932	1596	order.exe	order.exe
PID 1596 wrote to memory of 932	1596	order.exe	order.exe
PID 1596 wrote to memory of 932	1596	order.exe	order.exe

outlook_office_path 1 IoCs

Processes:

order.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\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-1-5-21-1083475884-596052423-1669053738-1000\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 use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1596
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IAEInhcV" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF2E.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1192
- 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:932

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

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\tmpF2E.tmp

Filesize
1KB

MD5
dfea9e326dd2cd0fafb2e3f90147b655

SHA1
d7e9816e224b15d0b2b82363529495cecfaa88bd

SHA256
774f6d48263a3f1bd694784c318d6c7d07a56e1db009c7373268b624a0310de6

SHA512
8f701f849f85adcd90fd5bf96abdc945d60dc9d3911dc3d5a79b8ad8b2626160fcbe43b689628d62dddfbe024bca3ae8908156bdd76248ea24e6c3f54df83f43

Download Submit
memory/932-86-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-104-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-586-0x0000000000B80000-0x0000000000B94000-memory.dmp

Filesize
80KB

Download
memory/932-585-0x0000000004E55000-0x0000000004E66000-memory.dmp

Filesize
68KB

Download
memory/932-583-0x00000000003C0000-0x0000000000404000-memory.dmp

Filesize
272KB

Download
memory/932-120-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-124-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-62-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-63-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-65-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-84-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-67-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-88-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-70-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-72-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-74-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-76-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-78-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-80-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-82-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-66-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-122-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-68-0x00000000004AB6EE-mapping.dmp

Download
memory/932-94-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-92-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-98-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-96-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-100-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-90-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-102-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-106-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-118-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-110-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-108-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-112-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-114-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/932-116-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1192-59-0x0000000000000000-mapping.dmp

Download
memory/1596-56-0x0000000075781000-0x0000000075783000-memory.dmp

Filesize
8KB

Download
memory/1596-58-0x0000000004400000-0x00000000044B8000-memory.dmp

Filesize
736KB

Download
memory/1596-61-0x0000000004DE0000-0x0000000004E90000-memory.dmp

Filesize
704KB

Download
memory/1596-55-0x00000000070A0000-0x000000000716C000-memory.dmp

Filesize
816KB

Download
memory/1596-54-0x0000000000E40000-0x0000000000F94000-memory.dmp

Filesize
1.3MB

Download
memory/1596-57-0x00000000002B0000-0x00000000002B8000-memory.dmp

Filesize
32KB

Download