masslogger | 0050845afac75af190b0f40bc369a76466bd205c067ec20ea20c9e75b0cfdbf0

Analysis

max time kernel
141s
max time network
150s
platform
windows7_x64
resource
win7-20220414-en
submitted
21-05-2022 12:31

Sharing

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Report Analysis Logs

General

Target

Daily report 2_pdf.exe
Size

861KB
MD5

8a1fa311688ba41e6282226bb02d73a2
SHA1

8ba23c07edef3e0302820c811ae56705665ff12d
SHA256

8bc95f1ba65bf54858a20c62bf09e9e39027f8be74369c25401b5e4503b1b553
SHA512

1e51ee35a7da4fd7ac18c0781772260958f8e7e63694cd4b3b5a6367af34bbe8464b08620b8f2d05840ae5ec7fb1e43dccd9c8e2399ecd2c5e3c0bd791f29a50

Score

10^/10

masslogger collection ransomware rezer0 spyware stealer

Malware Config

Extracted

Path

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

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.2.0 ################################################################# ### 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 2:41:15 PM MassLogger Started: 5/21/2022 2:40:45 PM Interval: 6 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\Daily report 2_pdf.exe As Administrator: True

Extracted

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
evra12345

Signatures

MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
stealer spyware masslogger

MassLogger Main Payload 32 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1676-61-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-62-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-63-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-64-0x00000000004A1E3E-mapping.dmp	family_masslogger
behavioral1/memory/1676-66-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-68-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-70-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-72-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-74-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-76-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-78-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-80-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-82-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-84-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-86-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-88-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-90-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-92-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-94-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-96-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-98-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-100-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-102-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-104-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-106-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-108-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-110-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-114-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-112-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-116-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-120-0x0000000000400000-0x00000000004A6000-memory.dmp	family_masslogger
behavioral1/memory/1676-118-0x0000000000400000-0x00000000004A6000-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/1216-57-0x0000000007F40000-0x0000000007FEE000-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:

Daily report 2_pdf.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\International\Geo\Nation	Daily report 2_pdf.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

Processes:

Daily report 2_pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Daily report 2_pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Daily report 2_pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Daily report 2_pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Daily report 2_pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Daily report 2_pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Daily report 2_pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Daily report 2_pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Daily report 2_pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Daily report 2_pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Daily report 2_pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Daily report 2_pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Daily report 2_pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Daily report 2_pdf.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Daily report 2_pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Daily report 2_pdf.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:

Daily report 2_pdf.exe

description pid process target process

PID 1216 set thread context of 1676 1216 Daily report 2_pdf.exe Daily report 2_pdf.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

Daily report 2_pdf.exe

pid process

1676 Daily report 2_pdf.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

Daily report 2_pdf.exeDaily report 2_pdf.exe

pid process

1216 Daily report 2_pdf.exe
1216 Daily report 2_pdf.exe
1216 Daily report 2_pdf.exe
1216 Daily report 2_pdf.exe
1676 Daily report 2_pdf.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Daily report 2_pdf.exeDaily report 2_pdf.exe

description pid process

Token: SeDebugPrivilege 1216 Daily report 2_pdf.exe
Token: SeDebugPrivilege 1676 Daily report 2_pdf.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Daily report 2_pdf.exe

pid process

1676 Daily report 2_pdf.exe

flow	ioc
4	api.ipify.org

description	pid	process	target process
PID 1216 set thread context of 1676	1216	Daily report 2_pdf.exe	Daily report 2_pdf.exe

pid	process
1676	Daily report 2_pdf.exe

pid	process
1216	Daily report 2_pdf.exe
1216	Daily report 2_pdf.exe
1216	Daily report 2_pdf.exe
1216	Daily report 2_pdf.exe
1676	Daily report 2_pdf.exe

description	pid	process
Token: SeDebugPrivilege	1216	Daily report 2_pdf.exe
Token: SeDebugPrivilege	1676	Daily report 2_pdf.exe

pid	process
1676	Daily report 2_pdf.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

Daily report 2_pdf.exe

description	pid	process	target process
PID 1216 wrote to memory of 272	1216	Daily report 2_pdf.exe	Daily report 2_pdf.exe
PID 1216 wrote to memory of 272	1216	Daily report 2_pdf.exe	Daily report 2_pdf.exe
PID 1216 wrote to memory of 272	1216	Daily report 2_pdf.exe	Daily report 2_pdf.exe
PID 1216 wrote to memory of 272	1216	Daily report 2_pdf.exe	Daily report 2_pdf.exe
PID 1216 wrote to memory of 1792	1216	Daily report 2_pdf.exe	Daily report 2_pdf.exe
PID 1216 wrote to memory of 1792	1216	Daily report 2_pdf.exe	Daily report 2_pdf.exe
PID 1216 wrote to memory of 1792	1216	Daily report 2_pdf.exe	Daily report 2_pdf.exe
PID 1216 wrote to memory of 1792	1216	Daily report 2_pdf.exe	Daily report 2_pdf.exe
PID 1216 wrote to memory of 1736	1216	Daily report 2_pdf.exe	Daily report 2_pdf.exe
PID 1216 wrote to memory of 1736	1216	Daily report 2_pdf.exe	Daily report 2_pdf.exe
PID 1216 wrote to memory of 1736	1216	Daily report 2_pdf.exe	Daily report 2_pdf.exe
PID 1216 wrote to memory of 1736	1216	Daily report 2_pdf.exe	Daily report 2_pdf.exe
PID 1216 wrote to memory of 1584	1216	Daily report 2_pdf.exe	Daily report 2_pdf.exe
PID 1216 wrote to memory of 1584	1216	Daily report 2_pdf.exe	Daily report 2_pdf.exe
PID 1216 wrote to memory of 1584	1216	Daily report 2_pdf.exe	Daily report 2_pdf.exe
PID 1216 wrote to memory of 1584	1216	Daily report 2_pdf.exe	Daily report 2_pdf.exe
PID 1216 wrote to memory of 1676	1216	Daily report 2_pdf.exe	Daily report 2_pdf.exe
PID 1216 wrote to memory of 1676	1216	Daily report 2_pdf.exe	Daily report 2_pdf.exe
PID 1216 wrote to memory of 1676	1216	Daily report 2_pdf.exe	Daily report 2_pdf.exe
PID 1216 wrote to memory of 1676	1216	Daily report 2_pdf.exe	Daily report 2_pdf.exe
PID 1216 wrote to memory of 1676	1216	Daily report 2_pdf.exe	Daily report 2_pdf.exe
PID 1216 wrote to memory of 1676	1216	Daily report 2_pdf.exe	Daily report 2_pdf.exe
PID 1216 wrote to memory of 1676	1216	Daily report 2_pdf.exe	Daily report 2_pdf.exe
PID 1216 wrote to memory of 1676	1216	Daily report 2_pdf.exe	Daily report 2_pdf.exe
PID 1216 wrote to memory of 1676	1216	Daily report 2_pdf.exe	Daily report 2_pdf.exe

outlook_office_path 1 IoCs

Processes:

Daily report 2_pdf.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	Daily report 2_pdf.exe

outlook_win_path 1 IoCs

Processes:

Daily report 2_pdf.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	Daily report 2_pdf.exe

C:\Users\Admin\AppData\Local\Temp\Daily report 2_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Daily report 2_pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1216
- C:\Users\Admin\AppData\Local\Temp\Daily report 2_pdf.exe
  "{path}"
  2⤵
  PID:272
- C:\Users\Admin\AppData\Local\Temp\Daily report 2_pdf.exe
  "{path}"
  2⤵
  PID:1792
- C:\Users\Admin\AppData\Local\Temp\Daily report 2_pdf.exe
  "{path}"
  2⤵
  PID:1736
- C:\Users\Admin\AppData\Local\Temp\Daily report 2_pdf.exe
  "{path}"
  2⤵
  PID:1584
- C:\Users\Admin\AppData\Local\Temp\Daily report 2_pdf.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:1676

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

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

memory/1216-54-0x0000000000020000-0x00000000000FE000-memory.dmp

Filesize
888KB

Download
memory/1216-55-0x00000000759F1000-0x00000000759F3000-memory.dmp

Filesize
8KB

Download
memory/1216-56-0x00000000004E0000-0x00000000004F0000-memory.dmp

Filesize
64KB

Download
memory/1216-57-0x0000000007F40000-0x0000000007FEE000-memory.dmp

Filesize
696KB

Download
memory/1676-58-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-59-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-61-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-62-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-63-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-64-0x00000000004A1E3E-mapping.dmp

Download
memory/1676-66-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-68-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-70-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-72-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-74-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-76-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-78-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-80-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-82-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-84-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-86-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-88-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-90-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-92-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-94-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-96-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-98-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-100-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-102-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-104-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-106-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-108-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-110-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-114-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-112-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-116-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-120-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-118-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1676-570-0x00000000041B0000-0x00000000041F4000-memory.dmp

Filesize
272KB

Download