masslogger | 46455dab58abbeca83badbb41504561f481dfeac961f86024c51b1d0767e5559

Analysis

max time kernel
136s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
21-05-2022 12:25

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General

Target

OUR_NEW_.exe
Size

1.3MB
MD5

8f71a7609408e4af8e1bb7b4bd7307a0
SHA1

2208a70548f67964f48a52df366bd70b5532f6b4
SHA256

4035190e2bab1261203e91970cfdc1f3e13387dcf624ed03f05692e480352fe7
SHA512

9c2cd471748fbb8879cb7d059538a997b6c046f0ad6949238e7d29b667541d7afe225d50f0ff89d87821efeca6fa666e17dfedcc16f4f564b4ac1edc533ec050

Score

10^/10

masslogger ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\8236ADF044\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.4.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.50 Location: United States OS: Microsoft Windows 10 Pro64bit CPU: Intel Core Processor (Broadwell) GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 3:09:15 PM MassLogger Started: 5/21/2022 3:08:53 PM Interval: 96 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\OUR_NEW_.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 33 IoCs

resource	yara_rule
behavioral2/memory/1364-130-0x0000000000EC0000-0x000000000100C000-memory.dmp	family_masslogger
behavioral2/memory/2808-136-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-138-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-140-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-142-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-144-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-146-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-148-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-150-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-152-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-154-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-156-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-158-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-160-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-162-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-164-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-166-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-170-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-168-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-172-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-174-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-176-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-178-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-180-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-182-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-184-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-186-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-188-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-190-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-192-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-194-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-196-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger
behavioral2/memory/2808-198-0x0000000000400000-0x00000000004B0000-memory.dmp	family_masslogger

MassLogger log file 1 IoCs

Detects a log file produced by MassLogger.

yara_rule
masslogger_log_file

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	OUR_NEW_.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.

flow	ioc
23	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1364 set thread context of 2808	1364	OUR_NEW_.exe	81

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1364	OUR_NEW_.exe
1364	OUR_NEW_.exe
1364	OUR_NEW_.exe
2808	OUR_NEW_.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1364	OUR_NEW_.exe
Token: SeDebugPrivilege	2808	OUR_NEW_.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1364 wrote to memory of 2808	1364	OUR_NEW_.exe	81
PID 1364 wrote to memory of 2808	1364	OUR_NEW_.exe	81
PID 1364 wrote to memory of 2808	1364	OUR_NEW_.exe	81
PID 1364 wrote to memory of 2808	1364	OUR_NEW_.exe	81
PID 1364 wrote to memory of 2808	1364	OUR_NEW_.exe	81
PID 1364 wrote to memory of 2808	1364	OUR_NEW_.exe	81
PID 1364 wrote to memory of 2808	1364	OUR_NEW_.exe	81
PID 1364 wrote to memory of 2808	1364	OUR_NEW_.exe	81

C:\Users\Admin\AppData\Local\Temp\OUR_NEW_.exe
"C:\Users\Admin\AppData\Local\Temp\OUR_NEW_.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1364
- C:\Users\Admin\AppData\Local\Temp\OUR_NEW_.exe
  "C:\Users\Admin\AppData\Local\Temp\OUR_NEW_.exe"
  2⤵
  - Checks computer location settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2808

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1364-130-0x0000000000EC0000-0x000000000100C000-memory.dmp

Filesize
1.3MB

Download
memory/1364-131-0x0000000005E90000-0x0000000006434000-memory.dmp

Filesize
5.6MB

Download
memory/1364-132-0x0000000005980000-0x00000000059C4000-memory.dmp

Filesize
272KB

Download
memory/1364-133-0x00000000059D0000-0x00000000059F2000-memory.dmp

Filesize
136KB

Download
memory/1364-134-0x0000000005C00000-0x0000000005C92000-memory.dmp

Filesize
584KB

Download
memory/2808-136-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-138-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-140-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-142-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-144-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-146-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-148-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-150-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-152-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-154-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-156-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-158-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-160-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-162-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-164-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-166-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-170-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-168-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-172-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-174-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-176-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-178-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-180-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-182-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-184-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-186-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-188-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-190-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-192-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-194-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-196-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-198-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2808-645-0x00000000059D0000-0x0000000005A6C000-memory.dmp

Filesize
624KB

Download
memory/2808-646-0x0000000005DE0000-0x0000000005E46000-memory.dmp

Filesize
408KB

Download
memory/2808-647-0x0000000007300000-0x000000000730A000-memory.dmp

Filesize
40KB

Download