masslogger | b8493704bd4bfba80e23b626fa5a64846ddb2f6b3072d330826bb3c7072247ae

Analysis

max time kernel
43s
max time network
153s
platform
windows7_x64
resource
win7-20220414-en
submitted
21-05-2022 02:15

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General

Target

MA20-002423 WinterTrade Zrt Szeged Hungary.exe
Size

995KB
MD5

821b0e70a2b51999a55f15a38e6d8ca4
SHA1

698488b54881ced2cebea6d0c8b57060bd232ab4
SHA256

d17e7aae62fd256c264b2602f913c5b918501a1416abb5c58a4f14bcafa2b0d6
SHA512

a2d9664daa16d67b4c62ec77d116037da9f93fa302e60a39836bf27da0d1beee2ebde30b6e4e6f36341e6573fe41caab0babe2e55a9b0565e5c20334244cbbfd

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:
gnaeask@2015

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/1992-56-0x0000000000780000-0x0000000000788000-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/1992-57-0x0000000004450000-0x00000000044FE000-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:

MA20-002423 WinterTrade Zrt Szeged Hungary.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Control Panel\International\Geo\Nation	MA20-002423 WinterTrade Zrt Szeged Hungary.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:

MA20-002423 WinterTrade Zrt Szeged Hungary.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	MA20-002423 WinterTrade Zrt Szeged Hungary.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MA20-002423 WinterTrade Zrt Szeged Hungary.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	MA20-002423 WinterTrade Zrt Szeged Hungary.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MA20-002423 WinterTrade Zrt Szeged Hungary.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	MA20-002423 WinterTrade Zrt Szeged Hungary.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MA20-002423 WinterTrade Zrt Szeged Hungary.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MA20-002423 WinterTrade Zrt Szeged Hungary.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MA20-002423 WinterTrade Zrt Szeged Hungary.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MA20-002423 WinterTrade Zrt Szeged Hungary.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MA20-002423 WinterTrade Zrt Szeged Hungary.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MA20-002423 WinterTrade Zrt Szeged Hungary.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	MA20-002423 WinterTrade Zrt Szeged Hungary.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	MA20-002423 WinterTrade Zrt Szeged Hungary.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MA20-002423 WinterTrade Zrt Szeged Hungary.exe
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	MA20-002423 WinterTrade Zrt Szeged Hungary.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

3 api.ipify.org

flow	ioc
3	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

Processes:

MA20-002423 WinterTrade Zrt Szeged Hungary.exe

description	pid	process	target process
PID 1992 set thread context of 1680	1992	MA20-002423 WinterTrade Zrt Szeged Hungary.exe	MA20-002423 WinterTrade Zrt Szeged Hungary.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

948 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

MA20-002423 WinterTrade Zrt Szeged Hungary.exe

pid process

1680 MA20-002423 WinterTrade Zrt Szeged Hungary.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

MA20-002423 WinterTrade Zrt Szeged Hungary.exe

pid process

1680 MA20-002423 WinterTrade Zrt Szeged Hungary.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

MA20-002423 WinterTrade Zrt Szeged Hungary.exe

description pid process

Token: SeDebugPrivilege 1680 MA20-002423 WinterTrade Zrt Szeged Hungary.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

MA20-002423 WinterTrade Zrt Szeged Hungary.exe

pid process

1680 MA20-002423 WinterTrade Zrt Szeged Hungary.exe

pid	process
948	schtasks.exe

pid	process
1680	MA20-002423 WinterTrade Zrt Szeged Hungary.exe

pid	process
1680	MA20-002423 WinterTrade Zrt Szeged Hungary.exe

description	pid	process
Token: SeDebugPrivilege	1680	MA20-002423 WinterTrade Zrt Szeged Hungary.exe

pid	process
1680	MA20-002423 WinterTrade Zrt Szeged Hungary.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

MA20-002423 WinterTrade Zrt Szeged Hungary.exe

description	pid	process	target process
PID 1992 wrote to memory of 948	1992	MA20-002423 WinterTrade Zrt Szeged Hungary.exe	schtasks.exe
PID 1992 wrote to memory of 948	1992	MA20-002423 WinterTrade Zrt Szeged Hungary.exe	schtasks.exe
PID 1992 wrote to memory of 948	1992	MA20-002423 WinterTrade Zrt Szeged Hungary.exe	schtasks.exe
PID 1992 wrote to memory of 948	1992	MA20-002423 WinterTrade Zrt Szeged Hungary.exe	schtasks.exe
PID 1992 wrote to memory of 1680	1992	MA20-002423 WinterTrade Zrt Szeged Hungary.exe	MA20-002423 WinterTrade Zrt Szeged Hungary.exe
PID 1992 wrote to memory of 1680	1992	MA20-002423 WinterTrade Zrt Szeged Hungary.exe	MA20-002423 WinterTrade Zrt Szeged Hungary.exe
PID 1992 wrote to memory of 1680	1992	MA20-002423 WinterTrade Zrt Szeged Hungary.exe	MA20-002423 WinterTrade Zrt Szeged Hungary.exe
PID 1992 wrote to memory of 1680	1992	MA20-002423 WinterTrade Zrt Szeged Hungary.exe	MA20-002423 WinterTrade Zrt Szeged Hungary.exe
PID 1992 wrote to memory of 1680	1992	MA20-002423 WinterTrade Zrt Szeged Hungary.exe	MA20-002423 WinterTrade Zrt Szeged Hungary.exe
PID 1992 wrote to memory of 1680	1992	MA20-002423 WinterTrade Zrt Szeged Hungary.exe	MA20-002423 WinterTrade Zrt Szeged Hungary.exe
PID 1992 wrote to memory of 1680	1992	MA20-002423 WinterTrade Zrt Szeged Hungary.exe	MA20-002423 WinterTrade Zrt Szeged Hungary.exe
PID 1992 wrote to memory of 1680	1992	MA20-002423 WinterTrade Zrt Szeged Hungary.exe	MA20-002423 WinterTrade Zrt Szeged Hungary.exe
PID 1992 wrote to memory of 1680	1992	MA20-002423 WinterTrade Zrt Szeged Hungary.exe	MA20-002423 WinterTrade Zrt Szeged Hungary.exe

outlook_office_path 1 IoCs

Processes:

MA20-002423 WinterTrade Zrt Szeged Hungary.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MA20-002423 WinterTrade Zrt Szeged Hungary.exe

outlook_win_path 1 IoCs

Processes:

MA20-002423 WinterTrade Zrt Szeged Hungary.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MA20-002423 WinterTrade Zrt Szeged Hungary.exe

C:\Users\Admin\AppData\Local\Temp\MA20-002423 WinterTrade Zrt Szeged Hungary.exe
"C:\Users\Admin\AppData\Local\Temp\MA20-002423 WinterTrade Zrt Szeged Hungary.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HuxzEmPpQT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5CC.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:948
- C:\Users\Admin\AppData\Local\Temp\MA20-002423 WinterTrade Zrt Szeged Hungary.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:1680

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\tmp5CC.tmp

Filesize
1KB

MD5
a10cd11020cb9ff1fb85a9954dade6a1

SHA1
e87c0bef2999d81787507219fbbcfdb2e6bf2857

SHA256
8ff8b28a1f2f82e4eda5a5e1da580f01c41206ffbc35c1075cb2ed43d2c2ec54

SHA512
3ee4ee9158f0a41fd98784a2f7e00515043036b8f5c159b0b8e1aff102c4f029f19e1a5efc80a1f1a58d0230f2d689605f61d9f83cc0309359dbf888b4591091

Download Submit
memory/948-58-0x0000000000000000-mapping.dmp

Download
memory/1680-84-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-114-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-570-0x00000000008A0000-0x00000000008E4000-memory.dmp

Filesize
272KB

Download
memory/1680-120-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-60-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-61-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-63-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-64-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-65-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-66-0x00000000004A13AE-mapping.dmp

Download
memory/1680-68-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-70-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-72-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-88-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-76-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-78-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-80-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-82-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-122-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-118-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-74-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-90-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-92-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-94-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-96-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-98-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-100-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-102-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-104-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-106-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-108-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-110-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-112-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-86-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1680-116-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1992-57-0x0000000004450000-0x00000000044FE000-memory.dmp

Filesize
696KB

Download
memory/1992-55-0x0000000074E91000-0x0000000074E93000-memory.dmp

Filesize
8KB

Download
memory/1992-54-0x0000000000DC0000-0x0000000000EBE000-memory.dmp

Filesize
1016KB

Download
memory/1992-56-0x0000000000780000-0x0000000000788000-memory.dmp

Filesize
32KB

Download