masslogger | 03968a3a5a7a880feefca31686fcfbed445080a0c06eda2b6d623757179b782c

Analysis

max time kernel
96s
max time network
147s
platform
windows7_x64
resource
win7v20201028
submitted
16-11-2020 08:56

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General

Target

mouse_2.exe
Size

984KB
MD5

af8ab92992ccc4cc6a637953836edf93
SHA1

ac17c77cae31fdfeb618b0083285ba869baf29fc
SHA256

03968a3a5a7a880feefca31686fcfbed445080a0c06eda2b6d623757179b782c
SHA512

9dc3bdfe45f9333d62ef3b0aaf3860a9ef1e94ced02ed0437d3ac2f96b3b9aacf6e621703f13d62f356bd50dec84cc3a3dc787a8a14c9ce0ceeed9ff63c45ad2

Score

10^/10

masslogger ransomware rezer0 spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\5FADD7138A\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.7.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.51 Location: United States Windows OS: Microsoft Windows 7 Professional 64bit Windows Serial Key: HYF8J-CVRMY-CM74G-RPHKF-PW487 CPU: Persocon Processor 2.5+ GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 11/16/2020 9:01:40 AM MassLogger Started: 11/16/2020 9:01:33 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\mouse_2.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

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/1508-143-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/1508-144-0x00000000004A2B3E-mapping.dmp	family_masslogger
behavioral1/memory/1508-145-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/1508-146-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger

MassLogger log file 1 IoCs
Detects a log file produced by MassLogger.

Processes:

yara_rule

masslogger_log_file

yara_rule
masslogger_log_file

rezer0 1 IoCs

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

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1644-137-0x0000000004D20000-0x0000000004DC9000-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-1-5-21-3825035466-2522850611-591511364-1000\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

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

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

Processes:

mouse_2.exe

description pid process target process

PID 1644 set thread context of 1508 1644 mouse_2.exe mouse_2.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

840 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

mouse_2.exe

pid process

1508 mouse_2.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

mouse_2.exemouse_2.exe

pid process

1644 mouse_2.exe
1644 mouse_2.exe
1644 mouse_2.exe
1508 mouse_2.exe
1508 mouse_2.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

mouse_2.exemouse_2.exe

description pid process

Token: SeDebugPrivilege 1644 mouse_2.exe
Token: SeDebugPrivilege 1508 mouse_2.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

mouse_2.exe

pid process

1508 mouse_2.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Control Panel\International\Geo\Nation	mouse_2.exe

flow	ioc
5	api.ipify.org

description	pid	process	target process
PID 1644 set thread context of 1508	1644	mouse_2.exe	mouse_2.exe

pid	process
840	schtasks.exe

pid	process
1508	mouse_2.exe

pid	process
1644	mouse_2.exe
1644	mouse_2.exe
1644	mouse_2.exe
1508	mouse_2.exe
1508	mouse_2.exe

description	pid	process
Token: SeDebugPrivilege	1644	mouse_2.exe
Token: SeDebugPrivilege	1508	mouse_2.exe

pid	process
1508	mouse_2.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

mouse_2.exe

description	pid	process	target process
PID 1644 wrote to memory of 840	1644	mouse_2.exe	schtasks.exe
PID 1644 wrote to memory of 840	1644	mouse_2.exe	schtasks.exe
PID 1644 wrote to memory of 840	1644	mouse_2.exe	schtasks.exe
PID 1644 wrote to memory of 840	1644	mouse_2.exe	schtasks.exe
PID 1644 wrote to memory of 1508	1644	mouse_2.exe	mouse_2.exe
PID 1644 wrote to memory of 1508	1644	mouse_2.exe	mouse_2.exe
PID 1644 wrote to memory of 1508	1644	mouse_2.exe	mouse_2.exe
PID 1644 wrote to memory of 1508	1644	mouse_2.exe	mouse_2.exe
PID 1644 wrote to memory of 1508	1644	mouse_2.exe	mouse_2.exe
PID 1644 wrote to memory of 1508	1644	mouse_2.exe	mouse_2.exe
PID 1644 wrote to memory of 1508	1644	mouse_2.exe	mouse_2.exe
PID 1644 wrote to memory of 1508	1644	mouse_2.exe	mouse_2.exe
PID 1644 wrote to memory of 1508	1644	mouse_2.exe	mouse_2.exe

C:\Users\Admin\AppData\Local\Temp\mouse_2.exe
"C:\Users\Admin\AppData\Local\Temp\mouse_2.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1644

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aqkfZm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5B88.tmp"
2⤵
- Creates scheduled task(s)
PID:840

C:\Users\Admin\AppData\Local\Temp\mouse_2.exe
"{path}"
2⤵
- Checks computer location settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1508

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp5B88.tmp
MD5
4a2288a6609492f823e86569fb45e186

SHA1
e2b3ac2400404930b32d0e11a0eecf91ebe823cd

SHA256
98cfe3da0228c2220c4325a17ea9977e9735a3d0da9770677835140559b32e60

SHA512
62ff78adb3172899256b8bf0347c72641ea491996c6cd28e676507c7e0dd6f2a14e67c825c85b5789f79554c7632ff015dc8dde726a5d3a611036e599833e6fa

Download Submit
memory/840-139-0x0000000000000000-mapping.dmp

Download
memory/1508-143-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1508-144-0x00000000004A2B3E-mapping.dmp

Download
memory/1508-145-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1508-154-0x00000000004D0000-0x000000000050E000-memory.dmp

Filesize
248KB

Download
memory/1508-149-0x00000000745C0000-0x0000000074CAE000-memory.dmp

Filesize
6.9MB

Download
memory/1508-146-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1644-68-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-14-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-8-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-10-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-72-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-74-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-16-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-18-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-20-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-22-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-24-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-26-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-28-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-30-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-32-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-34-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-36-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-38-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-40-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-42-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-44-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-46-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-48-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-50-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-52-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-54-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-56-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-58-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-60-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-62-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-64-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-66-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-4-0x0000000000590000-0x00000000005A1000-memory.dmp

Filesize
68KB

Download
memory/1644-70-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-76-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-6-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-12-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-78-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-80-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-82-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-84-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-86-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-88-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-90-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-92-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-94-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-96-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-98-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-100-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-102-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-104-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-106-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-108-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-110-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-112-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-114-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-116-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-118-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-120-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-122-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-124-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-126-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-128-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-3-0x0000000004490000-0x000000000454B000-memory.dmp

Filesize
748KB

Download
memory/1644-130-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-132-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-134-0x0000000000590000-0x00000000005A0000-memory.dmp

Filesize
64KB

Download
memory/1644-136-0x0000000000450000-0x0000000000452000-memory.dmp

Filesize
8KB

Download
memory/1644-137-0x0000000004D20000-0x0000000004DC9000-memory.dmp

Filesize
676KB

Download
memory/1644-148-0x0000000000610000-0x0000000000640000-memory.dmp

Filesize
192KB

Download
memory/1644-1-0x0000000000BD0000-0x0000000000BD1000-memory.dmp

Filesize
4KB

Download
memory/1644-0-0x00000000745C0000-0x0000000074CAE000-memory.dmp

Filesize
6.9MB

Download