masslogger | 60b290310f67adb0ae186b4b938ca466a6b55653b2519261fa425127f5500a1f

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
12-05-2024 16:15

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General

Target

Stealers/Masslogger/mouse_2.exe
Size

984KB
MD5

af8ab92992ccc4cc6a637953836edf93
SHA1

ac17c77cae31fdfeb618b0083285ba869baf29fc
SHA256

03968a3a5a7a880feefca31686fcfbed445080a0c06eda2b6d623757179b782c
SHA512

9dc3bdfe45f9333d62ef3b0aaf3860a9ef1e94ced02ed0437d3ac2f96b3b9aacf6e621703f13d62f356bd50dec84cc3a3dc787a8a14c9ce0ceeed9ff63c45ad2
SSDEEP

24576:iNg+tKkEYA7Gmvv/HGsvPw9vz/DrELE7VUH:0g4K7YA7vvRMbcLa

Score

10^/10

masslogger zgrat collection rat rezer0 spyware stealer

Malware Config

Signatures

Detect ZGRat V1 5 IoCs

Processes:

resource	yara_rule
behavioral23/memory/2804-23-0x0000000000400000-0x00000000004A8000-memory.dmp	family_zgrat_v1
behavioral23/memory/2804-26-0x0000000000400000-0x00000000004A8000-memory.dmp	family_zgrat_v1
behavioral23/memory/2804-21-0x0000000000400000-0x00000000004A8000-memory.dmp	family_zgrat_v1
behavioral23/memory/2804-17-0x0000000000400000-0x00000000004A8000-memory.dmp	family_zgrat_v1
behavioral23/memory/2804-15-0x0000000000400000-0x00000000004A8000-memory.dmp	family_zgrat_v1

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

MassLogger Main payload 5 IoCs

Processes:

resource	yara_rule
behavioral23/memory/2804-23-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral23/memory/2804-26-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral23/memory/2804-21-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral23/memory/2804-17-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral23/memory/2804-15-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger

ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat

ReZer0 packer 1 IoCs

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

rezer0

Processes:

resource	yara_rule
behavioral23/memory/2552-7-0x00000000049F0000-0x0000000004A9E000-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:

mouse_2.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Control Panel\International\Geo\Nation mouse_2.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

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Control Panel\International\Geo\Nation	mouse_2.exe

Accesses Microsoft Outlook profiles 1 TTPs 15 IoCs

collection

Email Collection

T1114

Processes:

mouse_2.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	mouse_2.exe
Key queried	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	mouse_2.exe
Key queried	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	mouse_2.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	mouse_2.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	mouse_2.exe
Key queried	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	mouse_2.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	mouse_2.exe
Key queried	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	mouse_2.exe
Key opened	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	mouse_2.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	mouse_2.exe
Key opened	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	mouse_2.exe
Key queried	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	mouse_2.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	mouse_2.exe
Key queried	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	mouse_2.exe
Key opened	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	mouse_2.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:

mouse_2.exe

description pid process target process

PID 2552 set thread context of 2804 2552 mouse_2.exe mouse_2.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

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/Job
T1053

Processes:

schtasks.exe

pid process

2544 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

mouse_2.exe

pid process

2804 mouse_2.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

mouse_2.exemouse_2.exe

pid process

2552 mouse_2.exe
2552 mouse_2.exe
2804 mouse_2.exe
2804 mouse_2.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

mouse_2.exemouse_2.exe

description pid process

Token: SeDebugPrivilege 2552 mouse_2.exe
Token: SeDebugPrivilege 2804 mouse_2.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

mouse_2.exe

pid process

2804 mouse_2.exe

flow	ioc
4	api.ipify.org

description	pid	process	target process
PID 2552 set thread context of 2804	2552	mouse_2.exe	mouse_2.exe

pid	process
2544	schtasks.exe

pid	process
2804	mouse_2.exe

pid	process
2552	mouse_2.exe
2552	mouse_2.exe
2804	mouse_2.exe
2804	mouse_2.exe

description	pid	process
Token: SeDebugPrivilege	2552	mouse_2.exe
Token: SeDebugPrivilege	2804	mouse_2.exe

pid	process
2804	mouse_2.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

mouse_2.exe

description	pid	process	target process
PID 2552 wrote to memory of 2544	2552	mouse_2.exe	schtasks.exe
PID 2552 wrote to memory of 2544	2552	mouse_2.exe	schtasks.exe
PID 2552 wrote to memory of 2544	2552	mouse_2.exe	schtasks.exe
PID 2552 wrote to memory of 2544	2552	mouse_2.exe	schtasks.exe
PID 2552 wrote to memory of 2804	2552	mouse_2.exe	mouse_2.exe
PID 2552 wrote to memory of 2804	2552	mouse_2.exe	mouse_2.exe
PID 2552 wrote to memory of 2804	2552	mouse_2.exe	mouse_2.exe
PID 2552 wrote to memory of 2804	2552	mouse_2.exe	mouse_2.exe
PID 2552 wrote to memory of 2804	2552	mouse_2.exe	mouse_2.exe
PID 2552 wrote to memory of 2804	2552	mouse_2.exe	mouse_2.exe
PID 2552 wrote to memory of 2804	2552	mouse_2.exe	mouse_2.exe
PID 2552 wrote to memory of 2804	2552	mouse_2.exe	mouse_2.exe
PID 2552 wrote to memory of 2804	2552	mouse_2.exe	mouse_2.exe

outlook_office_path 1 IoCs

Processes:

mouse_2.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	mouse_2.exe

outlook_win_path 1 IoCs

Processes:

mouse_2.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	mouse_2.exe

C:\Users\Admin\AppData\Local\Temp\Stealers\Masslogger\mouse_2.exe
"C:\Users\Admin\AppData\Local\Temp\Stealers\Masslogger\mouse_2.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2552
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aqkfZm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp34F5.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2544
- C:\Users\Admin\AppData\Local\Temp\Stealers\Masslogger\mouse_2.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:2804

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp34F5.tmp

Filesize
1KB

MD5
20da0902db0fb316eb3e7b220172cd1d

SHA1
0b898d6a1f7e66c4f05b72a9d07472b4973a0eb4

SHA256
d2d44054f10edf91e4fef7ca9b59132b1b19f838b217052941560e2f723c2f10

SHA512
647c3150de2d190526e97f7eac6f4190c3b4669c973b7440264b267fe28593594be82c64687bc9fb4076b57ca3fb8e864f8b0fe080514b1e4ec4cdc53774c138

Download Submit
memory/2552-4-0x0000000000520000-0x0000000000528000-memory.dmp

Filesize
32KB

Download
memory/2552-3-0x0000000074D80000-0x000000007546E000-memory.dmp

Filesize
6.9MB

Download
memory/2552-0-0x0000000074D8E000-0x0000000074D8F000-memory.dmp

Filesize
4KB

Download
memory/2552-2-0x0000000006D50000-0x0000000006E10000-memory.dmp

Filesize
768KB

Download
memory/2552-5-0x0000000074D8E000-0x0000000074D8F000-memory.dmp

Filesize
4KB

Download
memory/2552-6-0x0000000074D80000-0x000000007546E000-memory.dmp

Filesize
6.9MB

Download
memory/2552-7-0x00000000049F0000-0x0000000004A9E000-memory.dmp

Filesize
696KB

Download
memory/2552-1-0x00000000008A0000-0x000000000099C000-memory.dmp

Filesize
1008KB

Download
memory/2552-28-0x0000000074D80000-0x000000007546E000-memory.dmp

Filesize
6.9MB

Download
memory/2804-27-0x0000000000570000-0x00000000005B4000-memory.dmp

Filesize
272KB

Download
memory/2804-23-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2804-26-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2804-21-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2804-17-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2804-15-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2804-13-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2804-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2804-12-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download