masslogger | f49a52f841c0947006b687698efd2349648fb3c5aea51fbfaa099b5a5ab30463

Analysis

max time kernel
76s
max time network
154s
platform
windows7_x64
resource
win7-20220414-en
submitted
24-05-2022 21:24

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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

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.

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-1-5-21-1083475884-596052423-1669053738-1000\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.

flow	ioc
4	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1864 set thread context of 960	1864	Agency Fund JUNE20_Revised.exe	29

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

pid	Process
1220	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

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

Suspicious use of AdjustPrivilegeToken 2 IoCs

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

description	pid	Process	procid_target
PID 1864 wrote to memory of 1220	1864	Agency Fund JUNE20_Revised.exe	28
PID 1864 wrote to memory of 1220	1864	Agency Fund JUNE20_Revised.exe	28
PID 1864 wrote to memory of 1220	1864	Agency Fund JUNE20_Revised.exe	28
PID 1864 wrote to memory of 1220	1864	Agency Fund JUNE20_Revised.exe	28
PID 1864 wrote to memory of 960	1864	Agency Fund JUNE20_Revised.exe	29
PID 1864 wrote to memory of 960	1864	Agency Fund JUNE20_Revised.exe	29
PID 1864 wrote to memory of 960	1864	Agency Fund JUNE20_Revised.exe	29
PID 1864 wrote to memory of 960	1864	Agency Fund JUNE20_Revised.exe	29
PID 1864 wrote to memory of 960	1864	Agency Fund JUNE20_Revised.exe	29
PID 1864 wrote to memory of 960	1864	Agency Fund JUNE20_Revised.exe	29
PID 1864 wrote to memory of 960	1864	Agency Fund JUNE20_Revised.exe	29
PID 1864 wrote to memory of 960	1864	Agency Fund JUNE20_Revised.exe	29
PID 1864 wrote to memory of 960	1864	Agency Fund JUNE20_Revised.exe	29

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 Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

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

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/960-115-0x0000000000400000-0x00000000004A8000-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/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