masslogger | 9e5fa4ba917e4e478bbbd3f5c3b816e3ade490a5762254ce63d3f3629d88dd44

General

Target

3246744-28-06.exe
Size

1.1MB
MD5

a60ca849b4d2490671b6e54a97b09e87
SHA1

8d02d04d3bbd2ad7c4aae65189d8e289adabbbe1
SHA256

b51612fb244526a66524e234ccae2d57f1c98a37080fd94664626bcdcf6c4bbb
SHA512

33ffd9ac6db80c40d7f3970d25149378c7cd606c603541cf4544076ad80b6aea628df1bc8466dbd0c870f322b05cb0da47668af8758581b0f7e3d0d041dfc0ed

Score

10^/10

masslogger collection ransomware spyware stealer

Malware Config

Extracted

Path

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

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.3.0 ################################################################# ### 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: 5/21/2022 1:07:31 PM MassLogger Started: 5/21/2022 1:07:20 PM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe As Administrator: True

Extracted

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
m4cfund@yandex.com
Password:
Dmacdavid

Signatures

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
Executes dropped EXE 1 IoCs

Processes:

InstallUtil.exe

pid process

1416 InstallUtil.exe

yara_rule
masslogger_log_file

pid	process
1416	InstallUtil.exe

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:

InstallUtil.exe

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

Loads dropped DLL 1 IoCs

Processes:

3246744-28-06.exe

pid process

912 3246744-28-06.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

pid	process
912	3246744-28-06.exe

Accesses Microsoft Outlook profiles 1 TTPs 15 IoCs

collection

Email Collection

T1114

Processes:

InstallUtil.exe

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

3246744-28-06.exe

description pid process target process

PID 912 set thread context of 1416 912 3246744-28-06.exe InstallUtil.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

InstallUtil.exe

pid process

1416 InstallUtil.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

3246744-28-06.exeInstallUtil.exe

pid process

912 3246744-28-06.exe
912 3246744-28-06.exe
912 3246744-28-06.exe
1416 InstallUtil.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

3246744-28-06.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 912 3246744-28-06.exe
Token: SeDebugPrivilege 1416 InstallUtil.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

InstallUtil.exe

pid process

1416 InstallUtil.exe

flow	ioc
4	api.ipify.org

description	pid	process	target process
PID 912 set thread context of 1416	912	3246744-28-06.exe	InstallUtil.exe

pid	process
1416	InstallUtil.exe

pid	process
912	3246744-28-06.exe
912	3246744-28-06.exe
912	3246744-28-06.exe
1416	InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	912	3246744-28-06.exe
Token: SeDebugPrivilege	1416	InstallUtil.exe

pid	process
1416	InstallUtil.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

3246744-28-06.exe

description	pid	process	target process
PID 912 wrote to memory of 1416	912	3246744-28-06.exe	InstallUtil.exe
PID 912 wrote to memory of 1416	912	3246744-28-06.exe	InstallUtil.exe
PID 912 wrote to memory of 1416	912	3246744-28-06.exe	InstallUtil.exe
PID 912 wrote to memory of 1416	912	3246744-28-06.exe	InstallUtil.exe
PID 912 wrote to memory of 1416	912	3246744-28-06.exe	InstallUtil.exe
PID 912 wrote to memory of 1416	912	3246744-28-06.exe	InstallUtil.exe
PID 912 wrote to memory of 1416	912	3246744-28-06.exe	InstallUtil.exe
PID 912 wrote to memory of 1416	912	3246744-28-06.exe	InstallUtil.exe
PID 912 wrote to memory of 1416	912	3246744-28-06.exe	InstallUtil.exe
PID 912 wrote to memory of 1416	912	3246744-28-06.exe	InstallUtil.exe
PID 912 wrote to memory of 1416	912	3246744-28-06.exe	InstallUtil.exe
PID 912 wrote to memory of 1416	912	3246744-28-06.exe	InstallUtil.exe

outlook_office_path 1 IoCs

Processes:

InstallUtil.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	InstallUtil.exe

outlook_win_path 1 IoCs

Processes:

InstallUtil.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	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\3246744-28-06.exe
"C:\Users\Admin\AppData\Local\Temp\3246744-28-06.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:912

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
2⤵
- Executes dropped EXE
- 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:1416

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
Filesize
40KB

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
Filesize
40KB

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
\Users\Admin\AppData\Local\Temp\InstallUtil.exe
Filesize
40KB

MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
memory/912-55-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/912-54-0x0000000000010000-0x0000000000126000-memory.dmp

Filesize
1.1MB

Download
memory/1416-85-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-89-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-62-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-63-0x00000000004A12AE-mapping.dmp

Download
memory/1416-60-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-66-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-68-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-58-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-71-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-73-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-75-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-77-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-79-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-81-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-83-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-57-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-87-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-61-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-91-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-93-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-95-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-97-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-99-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-101-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-103-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-105-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-107-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-109-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-111-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-113-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-115-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-117-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-119-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-121-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-123-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/1416-575-0x0000000004D10000-0x0000000004D54000-memory.dmp

Filesize
272KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads