masslogger | f63fab350ae884c55e1e399abfdec150a3db27402311dc5d48ce6ef101930a4d

Analysis

max time kernel
141s
max time network
144s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-09-2024 13:01

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

DHL_May 2020 at 06.1_8C7290_PDF.exe
Size

805KB
MD5

e4707e252ef3e7a6477c63a1a0350129
SHA1

c5152a955485460d7c4bab092c5cebaf314ec092
SHA256

7573a215a8c55cef7dd88267f3df3561fea190c207eb09cae2b59641945748d4
SHA512

86f90725cd0dd098379c562ce311887f1c35a2a72d7c261f1544b8103265ded071408725250f1756e6b3b862fabaf0619a4b44d894b8643462998358ee428641
SSDEEP

24576:yiwoh1pK7twlZ+lKp7KZ6lxV1iqCTuO9MNj:PK7tW+Mp0I1bBl

Score

10^/10

masslogger collection credential_access discovery rezer0 spyware stealer

Malware Config

Signatures

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

MassLogger Main payload 30 IoCs

resource	yara_rule
behavioral1/memory/2784-9-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/2784-15-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/2784-13-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/2784-7-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/2784-18-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/2784-42-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/2784-44-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/2784-68-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/2784-66-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/2784-64-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/2784-62-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/2784-60-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/2784-58-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/2784-56-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/2784-54-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/2784-52-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/2784-50-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/2784-48-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/2784-46-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/2784-40-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/2784-38-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/2784-36-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/2784-35-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/2784-32-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/2784-30-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/2784-28-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/2784-26-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/2784-24-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/2784-22-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral1/memory/2784-70-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

ReZer0 packer 1 IoCs

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

rezer0

resource	yara_rule
behavioral1/memory/2712-4-0x0000000008540000-0x00000000085F8000-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-1-5-21-457978338-2990298471-2379561640-1000\Control Panel\International\Geo\Nation	DHL_May 2020 at 06.1_8C7290_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
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 15 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DHL_May 2020 at 06.1_8C7290_PDF.exe
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DHL_May 2020 at 06.1_8C7290_PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DHL_May 2020 at 06.1_8C7290_PDF.exe
Key queried	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DHL_May 2020 at 06.1_8C7290_PDF.exe
Key queried	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DHL_May 2020 at 06.1_8C7290_PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DHL_May 2020 at 06.1_8C7290_PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	DHL_May 2020 at 06.1_8C7290_PDF.exe
Key queried	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	DHL_May 2020 at 06.1_8C7290_PDF.exe
Key queried	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	DHL_May 2020 at 06.1_8C7290_PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DHL_May 2020 at 06.1_8C7290_PDF.exe
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DHL_May 2020 at 06.1_8C7290_PDF.exe
Key queried	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	DHL_May 2020 at 06.1_8C7290_PDF.exe
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DHL_May 2020 at 06.1_8C7290_PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	DHL_May 2020 at 06.1_8C7290_PDF.exe
Key created	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	DHL_May 2020 at 06.1_8C7290_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.

flow	ioc
4	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2712 set thread context of 2784	2712	DHL_May 2020 at 06.1_8C7290_PDF.exe	32

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DHL_May 2020 at 06.1_8C7290_PDF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DHL_May 2020 at 06.1_8C7290_PDF.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2712	DHL_May 2020 at 06.1_8C7290_PDF.exe
2712	DHL_May 2020 at 06.1_8C7290_PDF.exe
2712	DHL_May 2020 at 06.1_8C7290_PDF.exe
2712	DHL_May 2020 at 06.1_8C7290_PDF.exe
2712	DHL_May 2020 at 06.1_8C7290_PDF.exe
2712	DHL_May 2020 at 06.1_8C7290_PDF.exe
2712	DHL_May 2020 at 06.1_8C7290_PDF.exe
2784	DHL_May 2020 at 06.1_8C7290_PDF.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2712	DHL_May 2020 at 06.1_8C7290_PDF.exe
Token: SeDebugPrivilege	2784	DHL_May 2020 at 06.1_8C7290_PDF.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2712 wrote to memory of 2668	2712	DHL_May 2020 at 06.1_8C7290_PDF.exe	30
PID 2712 wrote to memory of 2668	2712	DHL_May 2020 at 06.1_8C7290_PDF.exe	30
PID 2712 wrote to memory of 2668	2712	DHL_May 2020 at 06.1_8C7290_PDF.exe	30
PID 2712 wrote to memory of 2668	2712	DHL_May 2020 at 06.1_8C7290_PDF.exe	30
PID 2712 wrote to memory of 2824	2712	DHL_May 2020 at 06.1_8C7290_PDF.exe	31
PID 2712 wrote to memory of 2824	2712	DHL_May 2020 at 06.1_8C7290_PDF.exe	31
PID 2712 wrote to memory of 2824	2712	DHL_May 2020 at 06.1_8C7290_PDF.exe	31
PID 2712 wrote to memory of 2824	2712	DHL_May 2020 at 06.1_8C7290_PDF.exe	31
PID 2712 wrote to memory of 2784	2712	DHL_May 2020 at 06.1_8C7290_PDF.exe	32
PID 2712 wrote to memory of 2784	2712	DHL_May 2020 at 06.1_8C7290_PDF.exe	32
PID 2712 wrote to memory of 2784	2712	DHL_May 2020 at 06.1_8C7290_PDF.exe	32
PID 2712 wrote to memory of 2784	2712	DHL_May 2020 at 06.1_8C7290_PDF.exe	32
PID 2712 wrote to memory of 2784	2712	DHL_May 2020 at 06.1_8C7290_PDF.exe	32
PID 2712 wrote to memory of 2784	2712	DHL_May 2020 at 06.1_8C7290_PDF.exe	32
PID 2712 wrote to memory of 2784	2712	DHL_May 2020 at 06.1_8C7290_PDF.exe	32
PID 2712 wrote to memory of 2784	2712	DHL_May 2020 at 06.1_8C7290_PDF.exe	32
PID 2712 wrote to memory of 2784	2712	DHL_May 2020 at 06.1_8C7290_PDF.exe	32

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DHL_May 2020 at 06.1_8C7290_PDF.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DHL_May 2020 at 06.1_8C7290_PDF.exe

C:\Users\Admin\AppData\Local\Temp\DHL_May 2020 at 06.1_8C7290_PDF.exe
"C:\Users\Admin\AppData\Local\Temp\DHL_May 2020 at 06.1_8C7290_PDF.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2712
- C:\Users\Admin\AppData\Local\Temp\DHL_May 2020 at 06.1_8C7290_PDF.exe
  "C:\Users\Admin\AppData\Local\Temp\DHL_May 2020 at 06.1_8C7290_PDF.exe"
  2⤵
  PID:2668
- C:\Users\Admin\AppData\Local\Temp\DHL_May 2020 at 06.1_8C7290_PDF.exe
  "C:\Users\Admin\AppData\Local\Temp\DHL_May 2020 at 06.1_8C7290_PDF.exe"
  2⤵
  PID:2824
- C:\Users\Admin\AppData\Local\Temp\DHL_May 2020 at 06.1_8C7290_PDF.exe
  "C:\Users\Admin\AppData\Local\Temp\DHL_May 2020 at 06.1_8C7290_PDF.exe"
  2⤵
  - Checks computer location settings
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2784

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2712-20-0x0000000074510000-0x0000000074BFE000-memory.dmp

Filesize
6.9MB

Download
memory/2712-1-0x0000000000800000-0x00000000008D0000-memory.dmp

Filesize
832KB

Download
memory/2712-2-0x0000000074510000-0x0000000074BFE000-memory.dmp

Filesize
6.9MB

Download
memory/2712-3-0x0000000000410000-0x0000000000418000-memory.dmp

Filesize
32KB

Download
memory/2712-4-0x0000000008540000-0x00000000085F8000-memory.dmp

Filesize
736KB

Download
memory/2712-0-0x000000007451E000-0x000000007451F000-memory.dmp

Filesize
4KB

Download
memory/2784-54-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-48-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-15-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-13-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-19-0x0000000074510000-0x0000000074BFE000-memory.dmp

Filesize
6.9MB

Download
memory/2784-5-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-7-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-6-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-18-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-42-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-44-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-68-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-66-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-64-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-62-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-60-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-58-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-56-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2784-52-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-50-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-9-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-46-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-40-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-38-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-36-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-35-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-32-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-30-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-28-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-26-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-24-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-22-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-70-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2784-529-0x0000000074510000-0x0000000074BFE000-memory.dmp

Filesize
6.9MB

Download
memory/2784-530-0x0000000074510000-0x0000000074BFE000-memory.dmp

Filesize
6.9MB

Download
memory/2784-531-0x0000000000720000-0x0000000000764000-memory.dmp

Filesize
272KB

Download
memory/2784-532-0x0000000074510000-0x0000000074BFE000-memory.dmp

Filesize
6.9MB

Download
memory/2784-536-0x0000000074510000-0x0000000074BFE000-memory.dmp

Filesize
6.9MB

Download
memory/2784-538-0x0000000074510000-0x0000000074BFE000-memory.dmp

Filesize
6.9MB

Download
memory/2784-539-0x0000000074510000-0x0000000074BFE000-memory.dmp

Filesize
6.9MB

Download
memory/2784-543-0x0000000074510000-0x0000000074BFE000-memory.dmp

Filesize
6.9MB

Download
memory/2784-551-0x0000000000970000-0x0000000000984000-memory.dmp

Filesize
80KB

Download