masslogger | dfcd2b701b1142718cfbeeaf21c4fcb618d8aa2482bea8821b440ed24a768a1e

General

Target

01_extracted.exe
Size

706KB
MD5

26321a18d20fbb143c096e4ed31aa3d5
SHA1

2be37b42a5254983d395e73d7d18b7a3e134cbf4
SHA256

dfcd2b701b1142718cfbeeaf21c4fcb618d8aa2482bea8821b440ed24a768a1e
SHA512

227a4e327f0f89cb5f39d7e5c0751d2a2c0941f8419607b173224c3f389c765ec4ad14db60527965df768c91383b86c1a81bae92b228b72db0281e2a5955b536

Score

10^/10

masslogger 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 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2960-10-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral2/memory/2960-11-0x0000000000481E9E-mapping.dmp	family_masslogger

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:

01_extracted.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Control Panel\International\Geo\Nation	01_extracted.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081
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

10 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

01_extracted.exe

description pid process target process

PID 2604 set thread context of 2960 2604 01_extracted.exe 01_extracted.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

01_extracted.exe

pid process

2960 01_extracted.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

01_extracted.exe

pid process

2960 01_extracted.exe
2960 01_extracted.exe
2960 01_extracted.exe
2960 01_extracted.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

01_extracted.exe

description pid process

Token: SeDebugPrivilege 2960 01_extracted.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

01_extracted.exe

pid process

2960 01_extracted.exe

flow	ioc
10	api.ipify.org

description	pid	process	target process
PID 2604 set thread context of 2960	2604	01_extracted.exe	01_extracted.exe

pid	process
2960	01_extracted.exe

pid	process
2960	01_extracted.exe
2960	01_extracted.exe
2960	01_extracted.exe
2960	01_extracted.exe

description	pid	process
Token: SeDebugPrivilege	2960	01_extracted.exe

pid	process
2960	01_extracted.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

01_extracted.exe

description	pid	process	target process
PID 2604 wrote to memory of 2960	2604	01_extracted.exe	01_extracted.exe
PID 2604 wrote to memory of 2960	2604	01_extracted.exe	01_extracted.exe
PID 2604 wrote to memory of 2960	2604	01_extracted.exe	01_extracted.exe
PID 2604 wrote to memory of 2960	2604	01_extracted.exe	01_extracted.exe
PID 2604 wrote to memory of 2960	2604	01_extracted.exe	01_extracted.exe
PID 2604 wrote to memory of 2960	2604	01_extracted.exe	01_extracted.exe
PID 2604 wrote to memory of 2960	2604	01_extracted.exe	01_extracted.exe
PID 2604 wrote to memory of 2960	2604	01_extracted.exe	01_extracted.exe

C:\Users\Admin\AppData\Local\Temp\01_extracted.exe
"C:\Users\Admin\AppData\Local\Temp\01_extracted.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2604

C:\Users\Admin\AppData\Local\Temp\01_extracted.exe
"C:\Users\Admin\AppData\Local\Temp\01_extracted.exe"
2⤵
- Checks computer location settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2960

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

memory/2604-9-0x0000000005650000-0x000000000565F000-memory.dmp

Filesize
60KB

Download
memory/2604-2-0x0000000073940000-0x000000007402E000-memory.dmp

Filesize
6.9MB

Download
memory/2604-5-0x0000000005A50000-0x0000000005A51000-memory.dmp

Filesize
4KB

Download
memory/2604-6-0x0000000005680000-0x000000000572E000-memory.dmp

Filesize
696KB

Download
memory/2604-7-0x0000000005F50000-0x0000000005F51000-memory.dmp

Filesize
4KB

Download
memory/2604-8-0x00000000057D0000-0x00000000057D1000-memory.dmp

Filesize
4KB

Download
memory/2604-3-0x0000000000D40000-0x0000000000D41000-memory.dmp

Filesize
4KB

Download
memory/2604-12-0x0000000005910000-0x0000000005911000-memory.dmp

Filesize
4KB

Download
memory/2960-10-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/2960-13-0x0000000073940000-0x000000007402E000-memory.dmp

Filesize
6.9MB

Download
memory/2960-11-0x0000000000481E9E-mapping.dmp

Download
memory/2960-18-0x00000000067C0000-0x00000000067C1000-memory.dmp

Filesize
4KB

Download
memory/2960-19-0x0000000006F80000-0x0000000006F81000-memory.dmp

Filesize
4KB

Download
memory/2960-21-0x0000000006FE0000-0x0000000006FE1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads