masslogger | f49a52f841c0947006b687698efd2349648fb3c5aea51fbfaa099b5a5ab30463

General

Target

Agency Fund JUNE20_Revised.exe
Size

948KB
MD5

cfdd2d3dc883211f7a6f934e4b295714
SHA1

e7deccd6d0685263d69a4cdff890baa0865770b1
SHA256

98ec6884be9b64e2e37a37460bd3d8ca770f2ef2d1d5cd4b6321a01462c8d32b
SHA512

b14684e7d37c884eb2da0066ddf694360a56f279be55f8335985c0a82882b54f39f42e4fd991e77f5e394d6f29b386194365003c6dd048c6d5ed87c2172073a7

Score

10^/10

masslogger ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\AEF946DCB4\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 7 Ultimate 64bit CPU: Intel Core Processor (Broadwell) GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/24/2022 11:26:02 PM MassLogger Started: 5/24/2022 11:25:51 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\Agency Fund JUNE20_Revised.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

Processes:

resource	yara_rule
behavioral1/memory/960-65-0x00000000004A384E-mapping.dmp	family_masslogger
behavioral1/memory/960-69-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-67-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-64-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-63-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-62-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-73-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-85-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-93-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-91-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-97-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-107-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-115-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-123-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-121-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-119-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-117-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-113-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-111-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-109-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-105-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-103-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-101-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-99-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-95-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-89-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-87-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-83-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-81-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-79-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-77-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-75-0x0000000000400000-0x00000000004A8000-memory.dmp	family_masslogger
behavioral1/memory/960-71-0x0000000000400000-0x00000000004A8000-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

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:

Agency Fund JUNE20_Revised.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\International\Geo\Nation	Agency Fund JUNE20_Revised.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.

Processes:

flow ioc

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

Processes:

Agency Fund JUNE20_Revised.exe

description pid process target process

PID 1864 set thread context of 960 1864 Agency Fund JUNE20_Revised.exe Agency Fund JUNE20_Revised.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
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

1220 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Agency Fund JUNE20_Revised.exeAgency Fund JUNE20_Revised.exe

pid process

1864 Agency Fund JUNE20_Revised.exe
960 Agency Fund JUNE20_Revised.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Agency Fund JUNE20_Revised.exeAgency Fund JUNE20_Revised.exe

description pid process

Token: SeDebugPrivilege 1864 Agency Fund JUNE20_Revised.exe
Token: SeDebugPrivilege 960 Agency Fund JUNE20_Revised.exe

flow	ioc
4	api.ipify.org

description	pid	process	target process
PID 1864 set thread context of 960	1864	Agency Fund JUNE20_Revised.exe	Agency Fund JUNE20_Revised.exe

pid	process
1220	schtasks.exe

pid	process
1864	Agency Fund JUNE20_Revised.exe
960	Agency Fund JUNE20_Revised.exe

description	pid	process
Token: SeDebugPrivilege	1864	Agency Fund JUNE20_Revised.exe
Token: SeDebugPrivilege	960	Agency Fund JUNE20_Revised.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

Agency Fund JUNE20_Revised.exe

description	pid	process	target process
PID 1864 wrote to memory of 1220	1864	Agency Fund JUNE20_Revised.exe	schtasks.exe
PID 1864 wrote to memory of 1220	1864	Agency Fund JUNE20_Revised.exe	schtasks.exe
PID 1864 wrote to memory of 1220	1864	Agency Fund JUNE20_Revised.exe	schtasks.exe
PID 1864 wrote to memory of 1220	1864	Agency Fund JUNE20_Revised.exe	schtasks.exe
PID 1864 wrote to memory of 960	1864	Agency Fund JUNE20_Revised.exe	Agency Fund JUNE20_Revised.exe
PID 1864 wrote to memory of 960	1864	Agency Fund JUNE20_Revised.exe	Agency Fund JUNE20_Revised.exe
PID 1864 wrote to memory of 960	1864	Agency Fund JUNE20_Revised.exe	Agency Fund JUNE20_Revised.exe
PID 1864 wrote to memory of 960	1864	Agency Fund JUNE20_Revised.exe	Agency Fund JUNE20_Revised.exe
PID 1864 wrote to memory of 960	1864	Agency Fund JUNE20_Revised.exe	Agency Fund JUNE20_Revised.exe
PID 1864 wrote to memory of 960	1864	Agency Fund JUNE20_Revised.exe	Agency Fund JUNE20_Revised.exe
PID 1864 wrote to memory of 960	1864	Agency Fund JUNE20_Revised.exe	Agency Fund JUNE20_Revised.exe
PID 1864 wrote to memory of 960	1864	Agency Fund JUNE20_Revised.exe	Agency Fund JUNE20_Revised.exe
PID 1864 wrote to memory of 960	1864	Agency Fund JUNE20_Revised.exe	Agency Fund JUNE20_Revised.exe

C:\Users\Admin\AppData\Local\Temp\Agency Fund JUNE20_Revised.exe
"C:\Users\Admin\AppData\Local\Temp\Agency Fund JUNE20_Revised.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1864

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BCUUDgKljBWP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE14B.tmp"
2⤵
- Creates scheduled task(s)
PID:1220

C:\Users\Admin\AppData\Local\Temp\Agency Fund JUNE20_Revised.exe
"{path}"
2⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:960

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

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpE14B.tmp
Filesize
1KB

MD5
3c6e980c28b47adc3883f7d7cb0e5d86

SHA1
8b7eeb46beab962ec1df1618b7532937cfd71063

SHA256
53a9e4677647f7d7c757c5ac7183d5004ef1e02f5eedd64feaccd4ad942cdf92

SHA512
a52cb3649c7b7c8028a1386ac843d4a14822b58fb2dcd7c5545a6a43735d24632a48bc0ff6e8debd73a21e1da2ffcf0532827ce0e4aa46848051fe94351c1fe3

Download Submit
memory/960-123-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-81-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-577-0x0000000000E75000-0x0000000000E86000-memory.dmp

Filesize
68KB

Download
memory/960-71-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-60-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-65-0x00000000004A384E-mapping.dmp

Download
memory/960-115-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-67-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-64-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-63-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-62-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-59-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-73-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-85-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-93-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-91-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-97-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-121-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-69-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-75-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-107-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-119-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-117-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-113-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-111-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-109-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-105-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-103-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-101-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-99-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-95-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-89-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-87-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-83-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-77-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/960-79-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/1220-57-0x0000000000000000-mapping.dmp

Download
memory/1864-54-0x0000000001140000-0x0000000001234000-memory.dmp

Filesize
976KB

Download
memory/1864-56-0x0000000005660000-0x0000000005710000-memory.dmp

Filesize
704KB

Download
memory/1864-55-0x00000000004F0000-0x000000000050C000-memory.dmp

Filesize
112KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads