masslogger | e14fddeef8f828f7c244f17140f851bb1f321c980637718bbf1333ab5665391c

General

Target

Halkbank_Ekstre_20200616_080918_33046.exe
Size

2.3MB
MD5

817f0a2fffee4c45c0309fd815ea5468
SHA1

b67953a212657011a227f626b958577e2ecf3010
SHA256

4a8306a06d0986039735160a8457fb8188fbd02015acb84808c97ffd3204020a
SHA512

516a866a2e93cc8aaa4c97cbc35c181b2660ad808b2a97f51165e44bdad1d609b0bd84bdac1786e32fe381e4ea7a5ce2e495b2dafc9a7ae2eebb2d5071096a47

Score

10^/10

masslogger agilenet collection ransomware spyware stealer

Malware Config

Extracted

Path

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

Family

masslogger

Ransom Note

################################################################# MassLogger v1.3.3.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.13 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 5:03:46 AM MassLogger Started: 5/21/2022 5:03:31 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

1592 InstallUtil.exe

yara_rule
masslogger_log_file

pid	process
1592	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-1-5-21-790309383-526510583-3802439154-1000\Control Panel\International\Geo\Nation	InstallUtil.exe

Loads dropped DLL 1 IoCs

Processes:

Halkbank_Ekstre_20200616_080918_33046.exe

pid process

560 Halkbank_Ekstre_20200616_080918_33046.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/560-55-0x0000000000430000-0x0000000000444000-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 opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	InstallUtil.exe
Key queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\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:

Halkbank_Ekstre_20200616_080918_33046.exe

description pid process target process

PID 560 set thread context of 1592 560 Halkbank_Ekstre_20200616_080918_33046.exe InstallUtil.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1680 560 WerFault.exe Halkbank_Ekstre_20200616_080918_33046.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

InstallUtil.exe

pid process

1592 InstallUtil.exe

flow	ioc
4	api.ipify.org

description	pid	process	target process
PID 560 set thread context of 1592	560	Halkbank_Ekstre_20200616_080918_33046.exe	InstallUtil.exe

pid	pid_target	process	target process
1680	560	WerFault.exe	Halkbank_Ekstre_20200616_080918_33046.exe

pid	process
1592	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Halkbank_Ekstre_20200616_080918_33046.exeInstallUtil.exe

pid	process
560	Halkbank_Ekstre_20200616_080918_33046.exe
560	Halkbank_Ekstre_20200616_080918_33046.exe
560	Halkbank_Ekstre_20200616_080918_33046.exe
1592	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Halkbank_Ekstre_20200616_080918_33046.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 560 Halkbank_Ekstre_20200616_080918_33046.exe
Token: SeDebugPrivilege 1592 InstallUtil.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

InstallUtil.exe

pid process

1592 InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	560	Halkbank_Ekstre_20200616_080918_33046.exe
Token: SeDebugPrivilege	1592	InstallUtil.exe

pid	process
1592	InstallUtil.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

Halkbank_Ekstre_20200616_080918_33046.exe

description	pid	process	target process
PID 560 wrote to memory of 1592	560	Halkbank_Ekstre_20200616_080918_33046.exe	InstallUtil.exe
PID 560 wrote to memory of 1592	560	Halkbank_Ekstre_20200616_080918_33046.exe	InstallUtil.exe
PID 560 wrote to memory of 1592	560	Halkbank_Ekstre_20200616_080918_33046.exe	InstallUtil.exe
PID 560 wrote to memory of 1592	560	Halkbank_Ekstre_20200616_080918_33046.exe	InstallUtil.exe
PID 560 wrote to memory of 1592	560	Halkbank_Ekstre_20200616_080918_33046.exe	InstallUtil.exe
PID 560 wrote to memory of 1592	560	Halkbank_Ekstre_20200616_080918_33046.exe	InstallUtil.exe
PID 560 wrote to memory of 1592	560	Halkbank_Ekstre_20200616_080918_33046.exe	InstallUtil.exe
PID 560 wrote to memory of 1592	560	Halkbank_Ekstre_20200616_080918_33046.exe	InstallUtil.exe
PID 560 wrote to memory of 1592	560	Halkbank_Ekstre_20200616_080918_33046.exe	InstallUtil.exe
PID 560 wrote to memory of 1592	560	Halkbank_Ekstre_20200616_080918_33046.exe	InstallUtil.exe
PID 560 wrote to memory of 1592	560	Halkbank_Ekstre_20200616_080918_33046.exe	InstallUtil.exe
PID 560 wrote to memory of 1592	560	Halkbank_Ekstre_20200616_080918_33046.exe	InstallUtil.exe
PID 560 wrote to memory of 1680	560	Halkbank_Ekstre_20200616_080918_33046.exe	WerFault.exe
PID 560 wrote to memory of 1680	560	Halkbank_Ekstre_20200616_080918_33046.exe	WerFault.exe
PID 560 wrote to memory of 1680	560	Halkbank_Ekstre_20200616_080918_33046.exe	WerFault.exe
PID 560 wrote to memory of 1680	560	Halkbank_Ekstre_20200616_080918_33046.exe	WerFault.exe

outlook_office_path 1 IoCs

Processes:

InstallUtil.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	InstallUtil.exe

outlook_win_path 1 IoCs

Processes:

InstallUtil.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	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20200616_080918_33046.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20200616_080918_33046.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:560

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:1592

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 560 -s 796
2⤵
- Program crash
PID:1680

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

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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/560-55-0x0000000000430000-0x0000000000444000-memory.dmp

Filesize
80KB

Download
memory/560-56-0x0000000000600000-0x0000000000608000-memory.dmp

Filesize
32KB

Download
memory/560-57-0x0000000000630000-0x0000000000638000-memory.dmp

Filesize
32KB

Download
memory/560-58-0x0000000000640000-0x0000000000648000-memory.dmp

Filesize
32KB

Download
memory/560-54-0x0000000000860000-0x0000000000ABE000-memory.dmp

Filesize
2.4MB

Download
memory/1592-87-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-91-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-66-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-63-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-67-0x00000000004A12AE-mapping.dmp

Download
memory/1592-70-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-72-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-61-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-75-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-77-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-79-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-83-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-81-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-85-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-60-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-89-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-93-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-65-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-95-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-97-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-101-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-99-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-103-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-105-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-107-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-109-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-111-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-113-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-117-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-115-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-121-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-125-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-123-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-119-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1592-580-0x00000000051F0000-0x0000000005234000-memory.dmp

Filesize
272KB

Download
memory/1680-165-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads