masslogger | 2978b788d747c1dfe75e273d6fdff0dab0ac85e589a8f953786fa23d899276c5

General

Target

Circulator 27643.exe
Size

953KB
MD5

048b39faaf884a5eae0a72e2325a6fb0
SHA1

fcade786c16cd0af8b5699e57b54a30a7ce08f09
SHA256

7f2a8610931a1f5ff9793dcb854ca01aaa6410fb5b4dc287753c558f1b60eee1
SHA512

b360b817f6df4ac7303df3c8ee4657805780b9660823bbc1cd78ce24df8e6af48d914e3aa06215064f217d903311f6ab52e9cd80e1b2fb83d02ef0439d12d464

Score

10^/10

masslogger collection ransomware rezer0 spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\8506BBE7FF\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.6.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.13 Location: United States Windows OS: Microsoft Windows 7 Ultimate 64bit Windows Serial Key: D4F6K-QK3RD-TMVMJ-BBMRX-3MBMV CPU: Intel Core Processor (Broadwell) GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 6:53:35 AM MassLogger Started: 5/21/2022 6:53:17 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\Circulator 27643.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Extracted

Credentials

Protocol: smtp
Host:
mail.itdone.cz
Port:
587
Username:
[email protected]
Password:
viObavejMa

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/1444-62-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-63-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-64-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-65-0x00000000004ACA3E-mapping.dmp	family_masslogger
behavioral1/memory/1444-67-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-69-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-71-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-73-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-75-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-77-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-79-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-81-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-83-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-85-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-87-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-89-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-91-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-93-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-95-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-97-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-99-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-101-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-103-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-105-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-107-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-109-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-111-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-113-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-115-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-117-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-119-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-121-0x0000000000400000-0x00000000004B2000-memory.dmp	family_masslogger
behavioral1/memory/1444-123-0x0000000000400000-0x00000000004B2000-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

ReZer0 packer 1 IoCs

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

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1860-56-0x0000000007C60000-0x0000000007D18000-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:

Circulator 27643.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Control Panel\International\Geo\Nation	Circulator 27643.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:

Circulator 27643.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Circulator 27643.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Circulator 27643.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Circulator 27643.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Circulator 27643.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Circulator 27643.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Circulator 27643.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Circulator 27643.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	Circulator 27643.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Circulator 27643.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Circulator 27643.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Circulator 27643.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Circulator 27643.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Circulator 27643.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	Circulator 27643.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	Circulator 27643.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:

Circulator 27643.exe

description pid process target process

PID 1860 set thread context of 1444 1860 Circulator 27643.exe Circulator 27643.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

1752 schtasks.exe

flow	ioc
4	api.ipify.org

description	pid	process	target process
PID 1860 set thread context of 1444	1860	Circulator 27643.exe	Circulator 27643.exe

pid	process
1752	schtasks.exe

Modifies system certificate store 2 TTPs 6 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

Circulator 27643.exe

description	ioc	process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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	Circulator 27643.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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	Circulator 27643.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 040000000100000010000000410352dc0ff7501b16f0028eba6f45c50f00000001000000140000005bcaa1c2780f0bcb5a90770451d96f38963f012d0b000000010000001e000000440053005400200052006f006f0074002000430041002000580033000000090000000100000016000000301406082b0601050507030406082b06010505070301140000000100000014000000c4a7b1a47b2c71fadbe14b9075ffc415608589101d00000001000000100000004558d512eecb27464920897de7b66053030000000100000014000000dac9024f54d8f6df94935fb1732638ca6ad77c131900000001000000100000006cf252fec3e8f20996de5d4dd9aef42420000000010000004e0300003082034a30820232a003020102021044afb080d6a327ba893039862ef8406b300d06092a864886f70d0101050500303f31243022060355040a131b4469676974616c205369676e617475726520547275737420436f2e311730150603550403130e44535420526f6f74204341205833301e170d3030303933303231313231395a170d3231303933303134303131355a303f31243022060355040a131b4469676974616c205369676e617475726520547275737420436f2e311730150603550403130e44535420526f6f7420434120583330820122300d06092a864886f70d01010105000382010f003082010a0282010100dfafe99750088357b4cc6265f69082ecc7d32c6b30ca5becd9c37dc740c118148be0e83376492ae33f214993ac4e0eaf3e48cb65eefcd3210f65d22ad9328f8ce5f777b0127bb595c089a3a9baed732e7a0c063283a27e8a1430cd11a0e12a38b9790a31fd50bd8065dfb7516383c8e28861ea4b6181ec526bb9a2e24b1a289f48a39e0cda098e3e172e1edd20df5bc62a8aab2ebd70adc50b1a25907472c57b6aab34d63089ffe568137b540bc8d6aeec5a9c921e3d64b38cc6dfbfc94170ec1672d526ec38553943d0fcfd185c40f197ebd59a9b8d1dbada25b9c6d8dfc115023aabda6ef13e2ef55c089c3cd68369e4109b192ab62957e3e53d9b9ff0025d0203010001a3423040300f0603551d130101ff040530030101ff300e0603551d0f0101ff040403020106301d0603551d0e04160414c4a7b1a47b2c71fadbe14b9075ffc41560858910300d06092a864886f70d01010505000382010100a31a2c9b17005ca91eee2866373abf83c73f4bc309a095205de3d95944d23e0d3ebd8a4ba0741fce10829c741a1d7e981addcb134bb32044e491e9ccfc7da5db6ae5fee6fde04eddb7003ab57049aff2e5eb02f1d1028b19cb943a5e48c4181e58195f1e025af00cf1b1ada9dc59868b6ee991f586cafab96633aa595bcee2a7167347cb2bcc99b03748cfe3564bf5cf0f0c723287c6f044bb53726d43f526489a5267b758abfe67767178db0da256141339243185a2a8025a3047e1dd5007bc02099000eb6463609b16bc88c912e6d27d918bf93d328d65b4e97cb15776eac5b62839bf15651cc8f677966a0a8d770bd8910b048e07db29b60aee9d82353510	Circulator 27643.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8	Circulator 27643.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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	Circulator 27643.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13	Circulator 27643.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

Circulator 27643.exeCirculator 27643.exe

pid process

1860 Circulator 27643.exe
1860 Circulator 27643.exe
1444 Circulator 27643.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Circulator 27643.exeCirculator 27643.exe

description pid process

Token: SeDebugPrivilege 1860 Circulator 27643.exe
Token: SeDebugPrivilege 1444 Circulator 27643.exe

pid	process
1860	Circulator 27643.exe
1860	Circulator 27643.exe
1444	Circulator 27643.exe

description	pid	process
Token: SeDebugPrivilege	1860	Circulator 27643.exe
Token: SeDebugPrivilege	1444	Circulator 27643.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

Circulator 27643.exe

description	pid	process	target process
PID 1860 wrote to memory of 1752	1860	Circulator 27643.exe	schtasks.exe
PID 1860 wrote to memory of 1752	1860	Circulator 27643.exe	schtasks.exe
PID 1860 wrote to memory of 1752	1860	Circulator 27643.exe	schtasks.exe
PID 1860 wrote to memory of 1752	1860	Circulator 27643.exe	schtasks.exe
PID 1860 wrote to memory of 1444	1860	Circulator 27643.exe	Circulator 27643.exe
PID 1860 wrote to memory of 1444	1860	Circulator 27643.exe	Circulator 27643.exe
PID 1860 wrote to memory of 1444	1860	Circulator 27643.exe	Circulator 27643.exe
PID 1860 wrote to memory of 1444	1860	Circulator 27643.exe	Circulator 27643.exe
PID 1860 wrote to memory of 1444	1860	Circulator 27643.exe	Circulator 27643.exe
PID 1860 wrote to memory of 1444	1860	Circulator 27643.exe	Circulator 27643.exe
PID 1860 wrote to memory of 1444	1860	Circulator 27643.exe	Circulator 27643.exe
PID 1860 wrote to memory of 1444	1860	Circulator 27643.exe	Circulator 27643.exe
PID 1860 wrote to memory of 1444	1860	Circulator 27643.exe	Circulator 27643.exe

outlook_office_path 1 IoCs

Processes:

Circulator 27643.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Circulator 27643.exe

outlook_win_path 1 IoCs

Processes:

Circulator 27643.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Circulator 27643.exe

C:\Users\Admin\AppData\Local\Temp\Circulator 27643.exe
"C:\Users\Admin\AppData\Local\Temp\Circulator 27643.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1860

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GBzuDXzfD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp32A5.tmp"
2⤵
- Creates scheduled task(s)
PID:1752

C:\Users\Admin\AppData\Local\Temp\Circulator 27643.exe
"{path}"
2⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1444

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

Install Root Certificate

1

T1130

Modify Registry

1

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp32A5.tmp
Filesize
1KB

MD5
df5c958c6199cee703827d1af44f7054

SHA1
7d242338634663d7561b59c63ddec9b0933045fb

SHA256
c8e2609c6e048167d8516ae1d5d2609351a03779842854d069a6a5c96cd8a50c

SHA512
7bc16e6a5cc96a351d965464315a725d42efcf552449b0f80f0dd6949ceeb5a336c0ee542bcf3be9e05eb267322b08ff6f11712d2dbd09564b5242a1b64fb26c

Download Submit
memory/1444-85-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-63-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-91-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-587-0x00000000008C0000-0x00000000008D4000-memory.dmp

Filesize
80KB

Download
memory/1444-59-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-60-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-62-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-89-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-64-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-65-0x00000000004ACA3E-mapping.dmp

Download
memory/1444-67-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-69-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-87-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-73-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-75-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-77-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-79-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-81-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-83-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-586-0x0000000002425000-0x0000000002436000-memory.dmp

Filesize
68KB

Download
memory/1444-71-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-584-0x00000000005C0000-0x0000000000604000-memory.dmp

Filesize
272KB

Download
memory/1444-123-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-93-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-95-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-97-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-99-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-101-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-103-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-105-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-107-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-109-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-111-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-113-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-115-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-117-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-119-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-121-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1752-57-0x0000000000000000-mapping.dmp

Download
memory/1860-56-0x0000000007C60000-0x0000000007D18000-memory.dmp

Filesize
736KB

Download
memory/1860-54-0x0000000000900000-0x00000000009F4000-memory.dmp

Filesize
976KB

Download
memory/1860-55-0x0000000000300000-0x0000000000314000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads