masslogger | 7c45c5ffaeb697da39489e3a6ff6945aa3f8ca737f5a278c435646e7a8602767

Analysis

max time kernel
121s
max time network
143s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27-09-2024 08:07

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General

Target

Document_028472.exe
Size

905KB
MD5

d82790a83761efb5c7727fb60db48723
SHA1

0345bbca4671daf283f40b20fa477ed8a84ba9a4
SHA256

f305b0d150fd1cae5ece3e13a86f95d7a4f25683930a57988878198b7f547ba4
SHA512

bb835bb5a954e206a3605eebee9ecaa6986af0e8a222fcb8108eb62ca856b183c10f2c58efcad803a47aabf70122cfe288a484a76eced03d74d6a6a06615422d
SSDEEP

12288:yFg3OaHjYaVymEzQSpHVNmLkS2i8fHLO2HyjJasQlYOUDhw0Gey7awQAtfDAvwIq:ZjYa5SHNU2XzPH8JHrC0LmawQnvw

Score

10^/10

masslogger collection discovery rezer0 spyware stealer

Malware Config

Extracted

Credentials

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

Signatures

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

MassLogger Main payload 31 IoCs

resource	yara_rule
behavioral1/memory/2764-12-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-16-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-18-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-13-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-21-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-52-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-74-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-72-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-70-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-68-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-66-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-64-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-62-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-60-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-58-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-56-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-54-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-50-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-48-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-46-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-44-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-42-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-40-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-38-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-36-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-34-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-32-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-30-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-28-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-26-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/2764-24-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger

ReZer0 packer 1 IoCs

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

rezer0

resource	yara_rule
behavioral1/memory/2128-6-0x0000000004EB0000-0x0000000004F68000-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-1-5-21-2872745919-2748461613-2989606286-1000\Control Panel\International\Geo\Nation	Document_028472.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 15 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Document_028472.exe
Key queried	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Document_028472.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Document_028472.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Document_028472.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Document_028472.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Document_028472.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Document_028472.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Document_028472.exe
Key queried	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Document_028472.exe
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Document_028472.exe
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Document_028472.exe
Key queried	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Document_028472.exe
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Document_028472.exe
Key queried	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Document_028472.exe
Key queried	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Document_028472.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 2128 set thread context of 2764	2128	Document_028472.exe	33

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	Document_028472.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Document_028472.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2816	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2764	Document_028472.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2764	Document_028472.exe
2764	Document_028472.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2764	Document_028472.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2764	Document_028472.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 2816	2128	Document_028472.exe	31
PID 2128 wrote to memory of 2816	2128	Document_028472.exe	31
PID 2128 wrote to memory of 2816	2128	Document_028472.exe	31
PID 2128 wrote to memory of 2816	2128	Document_028472.exe	31
PID 2128 wrote to memory of 2764	2128	Document_028472.exe	33
PID 2128 wrote to memory of 2764	2128	Document_028472.exe	33
PID 2128 wrote to memory of 2764	2128	Document_028472.exe	33
PID 2128 wrote to memory of 2764	2128	Document_028472.exe	33
PID 2128 wrote to memory of 2764	2128	Document_028472.exe	33
PID 2128 wrote to memory of 2764	2128	Document_028472.exe	33
PID 2128 wrote to memory of 2764	2128	Document_028472.exe	33
PID 2128 wrote to memory of 2764	2128	Document_028472.exe	33
PID 2128 wrote to memory of 2764	2128	Document_028472.exe	33

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Document_028472.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Document_028472.exe

C:\Users\Admin\AppData\Local\Temp\Document_028472.exe
"C:\Users\Admin\AppData\Local\Temp\Document_028472.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2128
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SUzUwFfZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp52D1.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2816
- C:\Users\Admin\AppData\Local\Temp\Document_028472.exe
  "{path}"
  2⤵
  - Checks computer location settings
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:2764

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

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

C:\Users\Admin\AppData\Local\Temp\Cab8883.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar88A5.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp52D1.tmp

Filesize
1KB

MD5
bbfd73ed6cfd9b3d489b9576f329531b

SHA1
473d1377ee54cb7713481f7198edb36c51fcf16f

SHA256
24df3b911ed959ed133fb6375c62dab766e99d0a3018a3e66ab02ec225e15c52

SHA512
0dc4c7f4cb3ffc4b233bcf6fb6e1936ae0e2843942cfd147c5c484be2b28eec34e584ab42ef06c4847e97d82354dcc85cca8e8c226ea141454f5fcdee9e4d471

Download Submit
memory/2128-0-0x0000000074ADE000-0x0000000074ADF000-memory.dmp

Filesize
4KB

Download
memory/2128-1-0x0000000001330000-0x0000000001418000-memory.dmp

Filesize
928KB

Download
memory/2128-2-0x0000000074AD0000-0x00000000751BE000-memory.dmp

Filesize
6.9MB

Download
memory/2128-3-0x0000000000900000-0x0000000000908000-memory.dmp

Filesize
32KB

Download
memory/2128-4-0x0000000074ADE000-0x0000000074ADF000-memory.dmp

Filesize
4KB

Download
memory/2128-5-0x0000000074AD0000-0x00000000751BE000-memory.dmp

Filesize
6.9MB

Download
memory/2128-6-0x0000000004EB0000-0x0000000004F68000-memory.dmp

Filesize
736KB

Download
memory/2128-22-0x0000000074AD0000-0x00000000751BE000-memory.dmp

Filesize
6.9MB

Download
memory/2764-12-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-16-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-18-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2764-13-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-11-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-21-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-10-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-52-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-74-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-126-0x0000000074AD0000-0x00000000751BE000-memory.dmp

Filesize
6.9MB

Download
memory/2764-72-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-70-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-68-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-66-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-64-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-62-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-60-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-58-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-56-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-54-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-50-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-48-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-46-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-44-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-42-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-40-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-38-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-36-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-34-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-32-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-30-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-28-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-26-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-24-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-538-0x0000000074AD0000-0x00000000751BE000-memory.dmp

Filesize
6.9MB

Download
memory/2764-539-0x0000000074AD0000-0x00000000751BE000-memory.dmp

Filesize
6.9MB

Download
memory/2764-540-0x0000000000B50000-0x0000000000B94000-memory.dmp

Filesize
272KB

Download
memory/2764-541-0x0000000074AD0000-0x00000000751BE000-memory.dmp

Filesize
6.9MB

Download
memory/2764-549-0x0000000074AD0000-0x00000000751BE000-memory.dmp

Filesize
6.9MB

Download
memory/2764-550-0x0000000074AD0000-0x00000000751BE000-memory.dmp

Filesize
6.9MB

Download
memory/2764-561-0x0000000000CA0000-0x0000000000CB4000-memory.dmp

Filesize
80KB

Download