masslogger | 5f53adb34adbcb6eeec29d48e9d80a401d1476eff2e826cb2c7ac02d8d7e2785

General

Target

SKM_C25820112116120.exe
Size

1.2MB
MD5

2559a4a701f88d7793082cea77f7a73c
SHA1

5548a12e53461128020f9feaefdeac7f797e2830
SHA256

5f53adb34adbcb6eeec29d48e9d80a401d1476eff2e826cb2c7ac02d8d7e2785
SHA512

a929420bb0bb9fc22262dbec8145a3c451e241a096c18eb3bd3e78c7766e5b021fcc9462477ea58866f4b329d65a2f2e3ec738fbf64d4dadd201cb3eab428ca2

Score

10^/10

masslogger spyware stealer

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.turkaykalibrasyon.com
Port:
587
Username:
turkay@turkaykalibrasyon.com
Password:
Cc_8A46

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/2036-1-0x0000000000400000-0x0000000000496000-memory.dmp	family_masslogger
behavioral1/memory/2036-2-0x000000000040188B-mapping.dmp	family_masslogger
behavioral1/memory/2036-4-0x0000000000400000-0x0000000000496000-memory.dmp	family_masslogger
behavioral1/memory/2036-7-0x00000000021A0000-0x0000000002221000-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:

SKM_C25820112116120.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Control Panel\International\Geo\Nation	SKM_C25820112116120.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
Suspicious use of SetThreadContext 1 IoCs

Processes:

SKM_C25820112116120.exe

description pid process target process

PID 1744 set thread context of 2036 1744 SKM_C25820112116120.exe SKM_C25820112116120.exe
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
T1053

Processes:

schtasks.exe

pid process

1352 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

SKM_C25820112116120.exe

pid process

2036 SKM_C25820112116120.exe

flow	ioc
6	api.ipify.org

description	pid	process	target process
PID 1744 set thread context of 2036	1744	SKM_C25820112116120.exe	SKM_C25820112116120.exe

pid	process
1352	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

SKM_C25820112116120.exepowershell.exe

pid	process
2036	SKM_C25820112116120.exe
2036	SKM_C25820112116120.exe
2036	SKM_C25820112116120.exe
2036	SKM_C25820112116120.exe
1748	powershell.exe
1748	powershell.exe

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

SKM_C25820112116120.exe

pid process

1744 SKM_C25820112116120.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

SKM_C25820112116120.exepowershell.exe

description pid process

Token: SeDebugPrivilege 2036 SKM_C25820112116120.exe
Token: SeDebugPrivilege 1748 powershell.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

SKM_C25820112116120.exe

pid process

2036 SKM_C25820112116120.exe

pid	process
1744	SKM_C25820112116120.exe

description	pid	process
Token: SeDebugPrivilege	2036	SKM_C25820112116120.exe
Token: SeDebugPrivilege	1748	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

SKM_C25820112116120.execmd.exeSKM_C25820112116120.exe

description	pid	process	target process
PID 1744 wrote to memory of 1240	1744	SKM_C25820112116120.exe	cmd.exe
PID 1744 wrote to memory of 1240	1744	SKM_C25820112116120.exe	cmd.exe
PID 1744 wrote to memory of 1240	1744	SKM_C25820112116120.exe	cmd.exe
PID 1744 wrote to memory of 1240	1744	SKM_C25820112116120.exe	cmd.exe
PID 1744 wrote to memory of 2036	1744	SKM_C25820112116120.exe	SKM_C25820112116120.exe
PID 1744 wrote to memory of 2036	1744	SKM_C25820112116120.exe	SKM_C25820112116120.exe
PID 1744 wrote to memory of 2036	1744	SKM_C25820112116120.exe	SKM_C25820112116120.exe
PID 1744 wrote to memory of 2036	1744	SKM_C25820112116120.exe	SKM_C25820112116120.exe
PID 1744 wrote to memory of 2036	1744	SKM_C25820112116120.exe	SKM_C25820112116120.exe
PID 1240 wrote to memory of 1352	1240	cmd.exe	schtasks.exe
PID 1240 wrote to memory of 1352	1240	cmd.exe	schtasks.exe
PID 1240 wrote to memory of 1352	1240	cmd.exe	schtasks.exe
PID 1240 wrote to memory of 1352	1240	cmd.exe	schtasks.exe
PID 2036 wrote to memory of 1748	2036	SKM_C25820112116120.exe	powershell.exe
PID 2036 wrote to memory of 1748	2036	SKM_C25820112116120.exe	powershell.exe
PID 2036 wrote to memory of 1748	2036	SKM_C25820112116120.exe	powershell.exe
PID 2036 wrote to memory of 1748	2036	SKM_C25820112116120.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\SKM_C25820112116120.exe
"C:\Users\Admin\AppData\Local\Temp\SKM_C25820112116120.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1744

C:\Windows\SysWOW64\cmd.exe
cmd /c schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\3bc9d0e4991c4127854c846f1c363314.xml"
2⤵
- Suspicious use of WriteProcessMemory
PID:1240

C:\Windows\SysWOW64\schtasks.exe
schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\3bc9d0e4991c4127854c846f1c363314.xml"
3⤵
- Creates scheduled task(s)
PID:1352

C:\Users\Admin\AppData\Local\Temp\SKM_C25820112116120.exe
"C:\Users\Admin\AppData\Local\Temp\SKM_C25820112116120.exe"
2⤵
- Checks computer location settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2036

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"powershell" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\SKM_C25820112116120.exe'
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1748

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1240-0-0x0000000000000000-mapping.dmp

Download
memory/1352-5-0x0000000000000000-mapping.dmp

Download
memory/1748-19-0x0000000005610000-0x0000000005611000-memory.dmp

Filesize
4KB

Download
memory/1748-24-0x00000000056B0000-0x00000000056B1000-memory.dmp

Filesize
4KB

Download
memory/1748-48-0x00000000065D0000-0x00000000065D1000-memory.dmp

Filesize
4KB

Download
memory/1748-47-0x00000000065C0000-0x00000000065C1000-memory.dmp

Filesize
4KB

Download
memory/1748-33-0x0000000006290000-0x0000000006291000-memory.dmp

Filesize
4KB

Download
memory/1748-9-0x0000000000000000-mapping.dmp

Download
memory/1748-10-0x0000000073E00000-0x00000000744EE000-memory.dmp

Filesize
6.9MB

Download
memory/1748-11-0x0000000000A60000-0x0000000000A61000-memory.dmp

Filesize
4KB

Download
memory/1748-13-0x0000000004910000-0x0000000004911000-memory.dmp

Filesize
4KB

Download
memory/1748-32-0x0000000006200000-0x0000000006201000-memory.dmp

Filesize
4KB

Download
memory/1748-25-0x0000000006160000-0x0000000006161000-memory.dmp

Filesize
4KB

Download
memory/1748-15-0x0000000002500000-0x0000000002501000-memory.dmp

Filesize
4KB

Download
memory/1748-16-0x0000000004850000-0x0000000004851000-memory.dmp

Filesize
4KB

Download
memory/2036-12-0x0000000002110000-0x0000000002149000-memory.dmp

Filesize
228KB

Download
memory/2036-1-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/2036-14-0x00000000065A0000-0x000000000662D000-memory.dmp

Filesize
564KB

Download
memory/2036-2-0x000000000040188B-mapping.dmp

Download
memory/2036-7-0x00000000021A0000-0x0000000002221000-memory.dmp

Filesize
516KB

Download
memory/2036-6-0x0000000073E00000-0x00000000744EE000-memory.dmp

Filesize
6.9MB

Download
memory/2036-4-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads