masslogger | 9eb4a882832362dbb1d183cd5d4f916f3e8d8cef86fd99bddb0cc14b19bc2b57

General

Target

7379d1bbf5b0a85cade31143413cf9e6.exe
Size

5.8MB
MD5

7379d1bbf5b0a85cade31143413cf9e6
SHA1

0e1afb9695c9438357d6968e1f6aa8fb86833f38
SHA256

9eb4a882832362dbb1d183cd5d4f916f3e8d8cef86fd99bddb0cc14b19bc2b57
SHA512

f4a433ccbf6e47b888db3da752d116e67a80ef8af3d0cee78e958836abe59ed006973b743224c989fdfecf3784aaf9ffef3a86a79c041c59d4274e94f942b3fc

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 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1116-6-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/1116-7-0x000000000048162E-mapping.dmp	family_masslogger
behavioral1/memory/1116-8-0x0000000000400000-0x0000000000486000-memory.dmp	family_masslogger
behavioral1/memory/1116-9-0x0000000000400000-0x0000000000486000-memory.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:

7379d1bbf5b0a85cade31143413cf9e6.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Control Panel\International\Geo\Nation	7379d1bbf5b0a85cade31143413cf9e6.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

6 api.ipify.org

flow	ioc
6	api.ipify.org

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

7379d1bbf5b0a85cade31143413cf9e6.exe

pid	process
1360	7379d1bbf5b0a85cade31143413cf9e6.exe
1360	7379d1bbf5b0a85cade31143413cf9e6.exe
1360	7379d1bbf5b0a85cade31143413cf9e6.exe
1360	7379d1bbf5b0a85cade31143413cf9e6.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

7379d1bbf5b0a85cade31143413cf9e6.exe

description pid process target process

PID 1360 set thread context of 1116 1360 7379d1bbf5b0a85cade31143413cf9e6.exe 7379d1bbf5b0a85cade31143413cf9e6.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1916 1360 WerFault.exe 7379d1bbf5b0a85cade31143413cf9e6.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

7379d1bbf5b0a85cade31143413cf9e6.exe

pid process

1116 7379d1bbf5b0a85cade31143413cf9e6.exe

description	pid	process	target process
PID 1360 set thread context of 1116	1360	7379d1bbf5b0a85cade31143413cf9e6.exe	7379d1bbf5b0a85cade31143413cf9e6.exe

pid	pid_target	process	target process
1916	1360	WerFault.exe	7379d1bbf5b0a85cade31143413cf9e6.exe

pid	process
1116	7379d1bbf5b0a85cade31143413cf9e6.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

7379d1bbf5b0a85cade31143413cf9e6.exe7379d1bbf5b0a85cade31143413cf9e6.exeWerFault.exe

pid	process
1360	7379d1bbf5b0a85cade31143413cf9e6.exe
1360	7379d1bbf5b0a85cade31143413cf9e6.exe
1360	7379d1bbf5b0a85cade31143413cf9e6.exe
1116	7379d1bbf5b0a85cade31143413cf9e6.exe
1116	7379d1bbf5b0a85cade31143413cf9e6.exe
1916	WerFault.exe
1916	WerFault.exe
1916	WerFault.exe
1916	WerFault.exe
1916	WerFault.exe
1116	7379d1bbf5b0a85cade31143413cf9e6.exe
1116	7379d1bbf5b0a85cade31143413cf9e6.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

7379d1bbf5b0a85cade31143413cf9e6.exe7379d1bbf5b0a85cade31143413cf9e6.exeWerFault.exe

description	pid	process
Token: SeDebugPrivilege	1360	7379d1bbf5b0a85cade31143413cf9e6.exe
Token: SeDebugPrivilege	1116	7379d1bbf5b0a85cade31143413cf9e6.exe
Token: SeDebugPrivilege	1916	WerFault.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

7379d1bbf5b0a85cade31143413cf9e6.exe

pid process

1116 7379d1bbf5b0a85cade31143413cf9e6.exe

pid	process
1116	7379d1bbf5b0a85cade31143413cf9e6.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

7379d1bbf5b0a85cade31143413cf9e6.exe

description	pid	process	target process
PID 1360 wrote to memory of 1116	1360	7379d1bbf5b0a85cade31143413cf9e6.exe	7379d1bbf5b0a85cade31143413cf9e6.exe
PID 1360 wrote to memory of 1116	1360	7379d1bbf5b0a85cade31143413cf9e6.exe	7379d1bbf5b0a85cade31143413cf9e6.exe
PID 1360 wrote to memory of 1116	1360	7379d1bbf5b0a85cade31143413cf9e6.exe	7379d1bbf5b0a85cade31143413cf9e6.exe
PID 1360 wrote to memory of 1116	1360	7379d1bbf5b0a85cade31143413cf9e6.exe	7379d1bbf5b0a85cade31143413cf9e6.exe
PID 1360 wrote to memory of 1116	1360	7379d1bbf5b0a85cade31143413cf9e6.exe	7379d1bbf5b0a85cade31143413cf9e6.exe
PID 1360 wrote to memory of 1116	1360	7379d1bbf5b0a85cade31143413cf9e6.exe	7379d1bbf5b0a85cade31143413cf9e6.exe
PID 1360 wrote to memory of 1116	1360	7379d1bbf5b0a85cade31143413cf9e6.exe	7379d1bbf5b0a85cade31143413cf9e6.exe
PID 1360 wrote to memory of 1116	1360	7379d1bbf5b0a85cade31143413cf9e6.exe	7379d1bbf5b0a85cade31143413cf9e6.exe
PID 1360 wrote to memory of 1116	1360	7379d1bbf5b0a85cade31143413cf9e6.exe	7379d1bbf5b0a85cade31143413cf9e6.exe
PID 1360 wrote to memory of 1916	1360	7379d1bbf5b0a85cade31143413cf9e6.exe	WerFault.exe
PID 1360 wrote to memory of 1916	1360	7379d1bbf5b0a85cade31143413cf9e6.exe	WerFault.exe
PID 1360 wrote to memory of 1916	1360	7379d1bbf5b0a85cade31143413cf9e6.exe	WerFault.exe
PID 1360 wrote to memory of 1916	1360	7379d1bbf5b0a85cade31143413cf9e6.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\7379d1bbf5b0a85cade31143413cf9e6.exe
"C:\Users\Admin\AppData\Local\Temp\7379d1bbf5b0a85cade31143413cf9e6.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1360

C:\Users\Admin\AppData\Local\Temp\7379d1bbf5b0a85cade31143413cf9e6.exe
"C:\Users\Admin\AppData\Local\Temp\7379d1bbf5b0a85cade31143413cf9e6.exe"
2⤵
- Checks computer location settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1360 -s 632
2⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1916

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/1116-6-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1116-7-0x000000000048162E-mapping.dmp

Download
memory/1116-8-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1116-9-0x0000000000400000-0x0000000000486000-memory.dmp

Filesize
536KB

Download
memory/1116-10-0x0000000074520000-0x0000000074C0E000-memory.dmp

Filesize
6.9MB

Download
memory/1360-2-0x0000000074520000-0x0000000074C0E000-memory.dmp

Filesize
6.9MB

Download
memory/1360-3-0x0000000000EA0000-0x0000000000EA1000-memory.dmp

Filesize
4KB

Download
memory/1360-5-0x0000000000D70000-0x0000000000DFF000-memory.dmp

Filesize
572KB

Download
memory/1916-13-0x0000000000000000-mapping.dmp

Download
memory/1916-14-0x0000000001D90000-0x0000000001DA1000-memory.dmp

Filesize
68KB

Download
memory/1916-17-0x0000000002570000-0x0000000002581000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads