masslogger | a84a6a7eb96698a85d9506da6d3e6eb99cb05544c1a178a7c3348486f66942a2

Analysis

max time kernel
95s
max time network
99s
platform
windows7_x64
resource
win7-20220414-en
submitted
21-05-2022 01:36

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General

Target

Purchase order No# PO-38001830013 dt 10-05-20.exe
Size

879KB
MD5

14e4f7e80b29919cb9e669f2b4f92599
SHA1

6bf307456d4881bd68dfd64b9a0cf20b9f0e5909
SHA256

ad8cb5298f8a5a5cfdef92b5aee76f05e43d9e81fabfe79e0f880adc6690821b
SHA512

d19909fb2a2135c838bc0f53d8593dc417962f84e121f79c3e44a1951046b752d3fb003f00b94a8cb794befceb181c52efff8a66259f66e3a5dde9834b65be33

Score

10^/10

masslogger collection coreentity rezer0 spyware stealer

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.privateemail.com
Port:
587
Username:
[email protected]
Password:
Cotton2019*

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/1864-56-0x00000000004F0000-0x00000000004F8000-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/1864-57-0x0000000004C00000-0x0000000004CAE000-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:

Purchase order No# PO-38001830013 dt 10-05-20.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\International\Geo\Nation	Purchase order No# PO-38001830013 dt 10-05-20.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 15 IoCs

collection

Email Collection

T1114

Processes:

Purchase order No# PO-38001830013 dt 10-05-20.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Purchase order No# PO-38001830013 dt 10-05-20.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase order No# PO-38001830013 dt 10-05-20.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase order No# PO-38001830013 dt 10-05-20.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase order No# PO-38001830013 dt 10-05-20.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Purchase order No# PO-38001830013 dt 10-05-20.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase order No# PO-38001830013 dt 10-05-20.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase order No# PO-38001830013 dt 10-05-20.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase order No# PO-38001830013 dt 10-05-20.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase order No# PO-38001830013 dt 10-05-20.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase order No# PO-38001830013 dt 10-05-20.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Purchase order No# PO-38001830013 dt 10-05-20.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase order No# PO-38001830013 dt 10-05-20.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Purchase order No# PO-38001830013 dt 10-05-20.exe
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Purchase order No# PO-38001830013 dt 10-05-20.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Purchase order No# PO-38001830013 dt 10-05-20.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Purchase order No# PO-38001830013 dt 10-05-20.exe

description	pid	process	target process
PID 1864 set thread context of 1536	1864	Purchase order No# PO-38001830013 dt 10-05-20.exe	Purchase order No# PO-38001830013 dt 10-05-20.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

1564 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

Purchase order No# PO-38001830013 dt 10-05-20.exe

pid process

1536 Purchase order No# PO-38001830013 dt 10-05-20.exe

pid	process
1564	schtasks.exe

pid	process
1536	Purchase order No# PO-38001830013 dt 10-05-20.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

Purchase order No# PO-38001830013 dt 10-05-20.exePurchase order No# PO-38001830013 dt 10-05-20.exe

pid	process
1864	Purchase order No# PO-38001830013 dt 10-05-20.exe
1864	Purchase order No# PO-38001830013 dt 10-05-20.exe
1536	Purchase order No# PO-38001830013 dt 10-05-20.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Purchase order No# PO-38001830013 dt 10-05-20.exePurchase order No# PO-38001830013 dt 10-05-20.exe

description	pid	process
Token: SeDebugPrivilege	1864	Purchase order No# PO-38001830013 dt 10-05-20.exe
Token: SeDebugPrivilege	1536	Purchase order No# PO-38001830013 dt 10-05-20.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Purchase order No# PO-38001830013 dt 10-05-20.exe

pid process

1536 Purchase order No# PO-38001830013 dt 10-05-20.exe

pid	process
1536	Purchase order No# PO-38001830013 dt 10-05-20.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

Purchase order No# PO-38001830013 dt 10-05-20.exe

outlook_office_path 1 IoCs

Processes:

Purchase order No# PO-38001830013 dt 10-05-20.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase order No# PO-38001830013 dt 10-05-20.exe

outlook_win_path 1 IoCs

Processes:

Purchase order No# PO-38001830013 dt 10-05-20.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase order No# PO-38001830013 dt 10-05-20.exe

C:\Users\Admin\AppData\Local\Temp\Purchase order No# PO-38001830013 dt 10-05-20.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase order No# PO-38001830013 dt 10-05-20.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\bjUGNyIIYGUlm" /XML "C:\Users\Admin\AppData\Local\Temp\tmpABBB.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1564
- C:\Users\Admin\AppData\Local\Temp\Purchase order No# PO-38001830013 dt 10-05-20.exe
  "{path}"
  2⤵
  PID:1648
- C:\Users\Admin\AppData\Local\Temp\Purchase order No# PO-38001830013 dt 10-05-20.exe
  "{path}"
  2⤵
  - Checks computer location settings
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:1536

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

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpABBB.tmp

Filesize
1KB

MD5
f885d43aced93a794ddae1229546f14b

SHA1
766b6f03f92aa51302955a8645a9ea03542e2183

SHA256
cb6f8605fb34d399292758f1e925438c0dcb63633fa50a41f67f43ea617eb3af

SHA512
1815ea6d062a5751ea49ccf70be7c43c4c681132038819f613ce900b74ca76a0ecbd253c81e51fa233d141feee8b960f9361cc0f5f6103760a3deea4cb8b2ca6

Download Submit
memory/1536-80-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-118-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-570-0x0000000002020000-0x0000000002064000-memory.dmp

Filesize
272KB

Download
memory/1536-120-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-122-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-61-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-84-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-63-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-64-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-65-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-66-0x00000000004A0DDE-mapping.dmp

Download
memory/1536-68-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-70-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-72-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-74-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-78-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-76-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-90-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-60-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-114-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-82-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-88-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-86-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-92-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-94-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-96-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-98-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-100-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-106-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-104-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-102-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-112-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-110-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-108-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1536-116-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1564-58-0x0000000000000000-mapping.dmp

Download
memory/1864-54-0x0000000000A00000-0x0000000000AE2000-memory.dmp

Filesize
904KB

Download
memory/1864-56-0x00000000004F0000-0x00000000004F8000-memory.dmp

Filesize
32KB

Download
memory/1864-55-0x0000000075AE1000-0x0000000075AE3000-memory.dmp

Filesize
8KB

Download
memory/1864-57-0x0000000004C00000-0x0000000004CAE000-memory.dmp

Filesize
696KB

Download

description	pid	process	target process
PID 1864 wrote to memory of 1564	1864	Purchase order No# PO-38001830013 dt 10-05-20.exe	schtasks.exe
PID 1864 wrote to memory of 1564	1864	Purchase order No# PO-38001830013 dt 10-05-20.exe	schtasks.exe
PID 1864 wrote to memory of 1564	1864	Purchase order No# PO-38001830013 dt 10-05-20.exe	schtasks.exe
PID 1864 wrote to memory of 1564	1864	Purchase order No# PO-38001830013 dt 10-05-20.exe	schtasks.exe
PID 1864 wrote to memory of 1648	1864	Purchase order No# PO-38001830013 dt 10-05-20.exe	Purchase order No# PO-38001830013 dt 10-05-20.exe
PID 1864 wrote to memory of 1648	1864	Purchase order No# PO-38001830013 dt 10-05-20.exe	Purchase order No# PO-38001830013 dt 10-05-20.exe
PID 1864 wrote to memory of 1648	1864	Purchase order No# PO-38001830013 dt 10-05-20.exe	Purchase order No# PO-38001830013 dt 10-05-20.exe
PID 1864 wrote to memory of 1648	1864	Purchase order No# PO-38001830013 dt 10-05-20.exe	Purchase order No# PO-38001830013 dt 10-05-20.exe
PID 1864 wrote to memory of 1536	1864	Purchase order No# PO-38001830013 dt 10-05-20.exe	Purchase order No# PO-38001830013 dt 10-05-20.exe
PID 1864 wrote to memory of 1536	1864	Purchase order No# PO-38001830013 dt 10-05-20.exe	Purchase order No# PO-38001830013 dt 10-05-20.exe
PID 1864 wrote to memory of 1536	1864	Purchase order No# PO-38001830013 dt 10-05-20.exe	Purchase order No# PO-38001830013 dt 10-05-20.exe
PID 1864 wrote to memory of 1536	1864	Purchase order No# PO-38001830013 dt 10-05-20.exe	Purchase order No# PO-38001830013 dt 10-05-20.exe
PID 1864 wrote to memory of 1536	1864	Purchase order No# PO-38001830013 dt 10-05-20.exe	Purchase order No# PO-38001830013 dt 10-05-20.exe
PID 1864 wrote to memory of 1536	1864	Purchase order No# PO-38001830013 dt 10-05-20.exe	Purchase order No# PO-38001830013 dt 10-05-20.exe
PID 1864 wrote to memory of 1536	1864	Purchase order No# PO-38001830013 dt 10-05-20.exe	Purchase order No# PO-38001830013 dt 10-05-20.exe
PID 1864 wrote to memory of 1536	1864	Purchase order No# PO-38001830013 dt 10-05-20.exe	Purchase order No# PO-38001830013 dt 10-05-20.exe
PID 1864 wrote to memory of 1536	1864	Purchase order No# PO-38001830013 dt 10-05-20.exe	Purchase order No# PO-38001830013 dt 10-05-20.exe