masslogger | 0e90bd89cf193f319915fcd00b77547acfd56537a820aee951ece4b3018d685f

General

Target

AVISO, Transferencia ICBC.exe
Size

2.1MB
MD5

c051a6a2518f457e2f98a5ae69b5e74b
SHA1

d4025f3a5f9a5cd1486e4b593c740717eb974630
SHA256

bb69c76bdb4fd7d1cba3cce7ccd70341ef077e7651a2d8542841c8e16125dd36
SHA512

83b03a86840664ed266f66740ed26ce06500c96deac3e0ddd906176b64c9c667153abf54eac82e43a1dc5b7886e7d44bff630d012952c77959e261777e01629c

Score

10^/10

masslogger agilenet collection ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\3B8E3C2477\Log.txt

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.3.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.50 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 7:12:49 AM MassLogger Started: 5/21/2022 7:12:31 AM 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:
[email protected]
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

1360 InstallUtil.exe

yara_rule
masslogger_log_file

pid	process
1360	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-1-5-21-2277218442-1199762539-2004043321-1000\Control Panel\International\Geo\Nation	InstallUtil.exe

Loads dropped DLL 1 IoCs

Processes:

AVISO, Transferencia ICBC.exe

pid process

812 AVISO, Transferencia ICBC.exe

pid	process
812	AVISO, Transferencia ICBC.exe

Obfuscated with Agile.Net obfuscator 1 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

Processes:

resource	yara_rule
behavioral1/memory/812-55-0x0000000000280000-0x0000000000294000-memory.dmp	agile_net

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:

InstallUtil.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	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:

AVISO, Transferencia ICBC.exe

description pid process target process

PID 812 set thread context of 1360 812 AVISO, Transferencia ICBC.exe InstallUtil.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

InstallUtil.exe

pid process

1360 InstallUtil.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

AVISO, Transferencia ICBC.exeInstallUtil.exe

pid process

812 AVISO, Transferencia ICBC.exe
812 AVISO, Transferencia ICBC.exe
812 AVISO, Transferencia ICBC.exe
1360 InstallUtil.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

AVISO, Transferencia ICBC.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 812 AVISO, Transferencia ICBC.exe
Token: SeDebugPrivilege 1360 InstallUtil.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

InstallUtil.exe

pid process

1360 InstallUtil.exe

flow	ioc
4	api.ipify.org

description	pid	process	target process
PID 812 set thread context of 1360	812	AVISO, Transferencia ICBC.exe	InstallUtil.exe

pid	process
1360	InstallUtil.exe

pid	process
812	AVISO, Transferencia ICBC.exe
812	AVISO, Transferencia ICBC.exe
812	AVISO, Transferencia ICBC.exe
1360	InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	812	AVISO, Transferencia ICBC.exe
Token: SeDebugPrivilege	1360	InstallUtil.exe

pid	process
1360	InstallUtil.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

AVISO, Transferencia ICBC.exe

description	pid	process	target process
PID 812 wrote to memory of 1360	812	AVISO, Transferencia ICBC.exe	InstallUtil.exe
PID 812 wrote to memory of 1360	812	AVISO, Transferencia ICBC.exe	InstallUtil.exe
PID 812 wrote to memory of 1360	812	AVISO, Transferencia ICBC.exe	InstallUtil.exe
PID 812 wrote to memory of 1360	812	AVISO, Transferencia ICBC.exe	InstallUtil.exe
PID 812 wrote to memory of 1360	812	AVISO, Transferencia ICBC.exe	InstallUtil.exe
PID 812 wrote to memory of 1360	812	AVISO, Transferencia ICBC.exe	InstallUtil.exe
PID 812 wrote to memory of 1360	812	AVISO, Transferencia ICBC.exe	InstallUtil.exe
PID 812 wrote to memory of 1360	812	AVISO, Transferencia ICBC.exe	InstallUtil.exe
PID 812 wrote to memory of 1360	812	AVISO, Transferencia ICBC.exe	InstallUtil.exe
PID 812 wrote to memory of 1360	812	AVISO, Transferencia ICBC.exe	InstallUtil.exe
PID 812 wrote to memory of 1360	812	AVISO, Transferencia ICBC.exe	InstallUtil.exe
PID 812 wrote to memory of 1360	812	AVISO, Transferencia ICBC.exe	InstallUtil.exe

outlook_office_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\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-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\AVISO, Transferencia ICBC.exe
"C:\Users\Admin\AppData\Local\Temp\AVISO, Transferencia ICBC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:812

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:1360

Network

MITRE ATT&CK Enterprise 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

Email Collection

Command and Control

Exfiltration

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/812-55-0x0000000000280000-0x0000000000294000-memory.dmp

Filesize
80KB

Download
memory/812-56-0x00000000002C0000-0x00000000002C8000-memory.dmp

Filesize
32KB

Download
memory/812-57-0x0000000000470000-0x0000000000478000-memory.dmp

Filesize
32KB

Download
memory/812-58-0x0000000000480000-0x0000000000488000-memory.dmp

Filesize
32KB

Download
memory/812-54-0x0000000001100000-0x0000000001324000-memory.dmp

Filesize
2.1MB

Download
memory/1360-83-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-95-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-66-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-67-0x00000000004A12AE-mapping.dmp

Download
memory/1360-63-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-70-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-72-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-61-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-75-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-77-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-79-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-81-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-60-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-85-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-87-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-89-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-93-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-65-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-91-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-97-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-99-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-101-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-103-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-105-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-107-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-109-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-111-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-113-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-115-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-117-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-119-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-121-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-123-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-125-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1360-579-0x0000000000960000-0x00000000009A4000-memory.dmp

Filesize
272KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads