masslogger | 001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc

Analysis

max time kernel
73s
max time network
138s
platform
windows7_x64
resource
win7-20220414-en
submitted
16-05-2022 21:34

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General

Target

001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe
Size

1.1MB
MD5

517572f5a978bee6c537f4cca48e2cbe
SHA1

686d6a30d18c92b800b9737ba917df4959081fee
SHA256

001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc
SHA512

28eafec1ff1e423b4abd9ab1c2134822e1472710b73d15a5fcaf634a37cb3bcc9a6cb614d989a89bf18fc141429873d9db28aac11cc0d92372fbaeff9547e50e

Score

10^/10

masslogger coreentity ransomware rezer0 spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\79FE0CC911\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.4.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.51 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: 5/16/2022 10:14:39 PM MassLogger Started: 5/16/2022 10:14:31 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Signatures

CoreEntity .NET Packer 1 IoCs

A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

coreentity

Processes:

resource	yara_rule
behavioral1/memory/1180-57-0x0000000000530000-0x0000000000538000-memory.dmp	coreentity

MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
stealer spyware 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 packer 1 IoCs

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

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1180-58-0x0000000006300000-0x00000000063B8000-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:

001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Control Panel\International\Geo\Nation	001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.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

flow	ioc
4	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

Processes:

001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe

description	pid	process	target process
PID 1180 set thread context of 1084	1180	001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe	001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.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

1960 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe

pid process

1084 001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe

pid	process
1960	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe

pid	process
1084	001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe
1084	001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe

description	pid	process
Token: SeDebugPrivilege	1180	001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe
Token: SeDebugPrivilege	1084	001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe

pid process

1084 001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe

description	pid	process	target process
PID 1180 wrote to memory of 1960	1180	001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe	schtasks.exe
PID 1180 wrote to memory of 1960	1180	001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe	schtasks.exe
PID 1180 wrote to memory of 1960	1180	001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe	schtasks.exe
PID 1180 wrote to memory of 1960	1180	001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe	schtasks.exe
PID 1180 wrote to memory of 1084	1180	001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe	001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe
PID 1180 wrote to memory of 1084	1180	001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe	001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe
PID 1180 wrote to memory of 1084	1180	001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe	001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe
PID 1180 wrote to memory of 1084	1180	001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe	001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe
PID 1180 wrote to memory of 1084	1180	001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe	001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe
PID 1180 wrote to memory of 1084	1180	001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe	001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe
PID 1180 wrote to memory of 1084	1180	001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe	001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe
PID 1180 wrote to memory of 1084	1180	001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe	001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe
PID 1180 wrote to memory of 1084	1180	001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe	001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe

C:\Users\Admin\AppData\Local\Temp\001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe
"C:\Users\Admin\AppData\Local\Temp\001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1180
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ShPhySCdL" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC006.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1960
- C:\Users\Admin\AppData\Local\Temp\001b14d21f1f99aae9ae6b365482be3cd75568e33a8af6aba36d148129ac19dc.exe
  "{path}"
  2⤵
  - Checks computer location settings
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1084

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\tmpC006.tmp

Filesize
1KB

MD5
e4ae472be2e6ad83f669bb95b0805cfe

SHA1
c95de9baa0615a54060cd9772392eedd42f5eb48

SHA256
b31c3ef0860e5732bede2e4f6f5530b6f5244e32b0d6cb911aa1c23eb45fece9

SHA512
fd2989bb4b5d2477056cb2a6541f66d741f3da7b46e970eb88b1a5e92faff3f670e40a0cda4eb40a69026fc18548b9893b4a219c30dd261add47d75c88bf9d56

Download Submit
memory/1084-83-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-62-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-89-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-580-0x0000000004EA5000-0x0000000004EB6000-memory.dmp

Filesize
68KB

Download
memory/1084-578-0x00000000005F0000-0x0000000000634000-memory.dmp

Filesize
272KB

Download
memory/1084-123-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-61-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-87-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-64-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-65-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-66-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-67-0x00000000004ABDAE-mapping.dmp

Download
memory/1084-85-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-71-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-73-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-75-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-77-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-81-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-79-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-121-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-69-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-119-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-117-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-91-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-93-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-95-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-97-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-99-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-101-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-103-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-105-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-107-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-109-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-111-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-113-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1084-115-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1180-57-0x0000000000530000-0x0000000000538000-memory.dmp

Filesize
32KB

Download
memory/1180-56-0x0000000076C81000-0x0000000076C83000-memory.dmp

Filesize
8KB

Download
memory/1180-54-0x0000000000A90000-0x0000000000BAA000-memory.dmp

Filesize
1.1MB

Download
memory/1180-55-0x00000000045C0000-0x00000000046A2000-memory.dmp

Filesize
904KB

Download
memory/1180-58-0x0000000006300000-0x00000000063B8000-memory.dmp

Filesize
736KB

Download
memory/1960-59-0x0000000000000000-mapping.dmp

Download