masslogger | 30920f99abe5eed123d3da56f24aca831bcc33e8e91548ef4bb3bc265f412fc2

General

Target

RFQ_121720.exe
Size

1.2MB
MD5

3ad67ecbfd9e60db3dbe32de2b834f76
SHA1

17d7b06dc1f28408c24e822c0c19153c5170d01d
SHA256

30920f99abe5eed123d3da56f24aca831bcc33e8e91548ef4bb3bc265f412fc2
SHA512

9adbbe07a5c372cdc08555ef64f93a30845b9b19080a5fd6d53018311dde6c3c281b98871ffa0cedf86fef92a2473c1f8ff9e12428a024ab0ab0b53b891e2c1e

Score

10^/10

masslogger spyware stealer

Malware Config

Signatures

MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
stealer spyware masslogger

MassLogger Main Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1400-13-0x0000000009810000-0x0000000009890000-memory.dmp	family_masslogger

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:

RFQ_121720.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Control Panel\International\Geo\Nation	RFQ_121720.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081
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

14 api.ipify.org
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

2232 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

RFQ_121720.exe

pid process

1400 RFQ_121720.exe
Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

RFQ_121720.exepowershell.exe

pid process

1400 RFQ_121720.exe
1400 RFQ_121720.exe
1400 RFQ_121720.exe
1400 RFQ_121720.exe
4000 powershell.exe
4000 powershell.exe
4000 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

RFQ_121720.exepowershell.exe

description pid process

Token: SeDebugPrivilege 1400 RFQ_121720.exe
Token: SeDebugPrivilege 4000 powershell.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RFQ_121720.exe

pid process

1400 RFQ_121720.exe

flow	ioc
14	api.ipify.org

pid	process
2232	schtasks.exe

pid	process
1400	RFQ_121720.exe

pid	process
1400	RFQ_121720.exe
1400	RFQ_121720.exe
1400	RFQ_121720.exe
1400	RFQ_121720.exe
4000	powershell.exe
4000	powershell.exe
4000	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1400	RFQ_121720.exe
Token: SeDebugPrivilege	4000	powershell.exe

pid	process
1400	RFQ_121720.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

RFQ_121720.exe

description	pid	process	target process
PID 1400 wrote to memory of 2232	1400	RFQ_121720.exe	schtasks.exe
PID 1400 wrote to memory of 2232	1400	RFQ_121720.exe	schtasks.exe
PID 1400 wrote to memory of 2232	1400	RFQ_121720.exe	schtasks.exe
PID 1400 wrote to memory of 4000	1400	RFQ_121720.exe	powershell.exe
PID 1400 wrote to memory of 4000	1400	RFQ_121720.exe	powershell.exe
PID 1400 wrote to memory of 4000	1400	RFQ_121720.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\RFQ_121720.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ_121720.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1400

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nvqewUIaI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp73D9.tmp"
2⤵
- Creates scheduled task(s)
PID:2232

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"powershell" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\RFQ_121720.exe'
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4000

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

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

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp73D9.tmp
MD5
9bc573c48748a70d120173f3a9235fc6

SHA1
a2255e246ea47feb5b0250282dcbf81f65779e85

SHA256
c5bc94cbe9d2a6f376031b03d73d3343bcbf942543b10a1249d5ec6ddf3c2df1

SHA512
23d07154b71c5d4d1ad815344365977f5fd696e8a60bd9b2fd707da3983dac87f91897ca16179656ff1553c478015de9b752e88318860c26a3a5d75bc064f313

Download Submit
memory/1400-6-0x0000000005550000-0x0000000005551000-memory.dmp

Filesize
4KB

Download
memory/1400-5-0x0000000005B40000-0x0000000005B41000-memory.dmp

Filesize
4KB

Download
memory/1400-16-0x000000000A610000-0x000000000A611000-memory.dmp

Filesize
4KB

Download
memory/1400-7-0x00000000054F0000-0x00000000054F1000-memory.dmp

Filesize
4KB

Download
memory/1400-8-0x0000000008AD0000-0x0000000008AD4000-memory.dmp

Filesize
16KB

Download
memory/1400-9-0x0000000008CF0000-0x0000000008DDB000-memory.dmp

Filesize
940KB

Download
memory/1400-10-0x0000000008E80000-0x0000000008E81000-memory.dmp

Filesize
4KB

Download
memory/1400-3-0x0000000000B90000-0x0000000000B91000-memory.dmp

Filesize
4KB

Download
memory/1400-13-0x0000000009810000-0x0000000009890000-memory.dmp

Filesize
512KB

Download
memory/1400-14-0x0000000009F30000-0x0000000009F31000-memory.dmp

Filesize
4KB

Download
memory/1400-2-0x0000000073550000-0x0000000073C3E000-memory.dmp

Filesize
6.9MB

Download
memory/2232-11-0x0000000000000000-mapping.dmp

Download
memory/4000-17-0x0000000073550000-0x0000000073C3E000-memory.dmp

Filesize
6.9MB

Download
memory/4000-24-0x00000000079C0000-0x00000000079C1000-memory.dmp

Filesize
4KB

Download
memory/4000-18-0x0000000001320000-0x0000000001321000-memory.dmp

Filesize
4KB

Download
memory/4000-19-0x0000000007360000-0x0000000007361000-memory.dmp

Filesize
4KB

Download
memory/4000-20-0x0000000007200000-0x0000000007201000-memory.dmp

Filesize
4KB

Download
memory/4000-21-0x00000000072A0000-0x00000000072A1000-memory.dmp

Filesize
4KB

Download
memory/4000-23-0x0000000007C50000-0x0000000007C51000-memory.dmp

Filesize
4KB

Download
memory/4000-15-0x0000000000000000-mapping.dmp

Download
memory/4000-25-0x0000000008270000-0x0000000008271000-memory.dmp

Filesize
4KB

Download
memory/4000-26-0x00000000082C0000-0x00000000082C1000-memory.dmp

Filesize
4KB

Download
memory/4000-28-0x0000000009050000-0x0000000009083000-memory.dmp

Filesize
204KB

Download
memory/4000-35-0x0000000009030000-0x0000000009031000-memory.dmp

Filesize
4KB

Download
memory/4000-36-0x00000000093A0000-0x00000000093A1000-memory.dmp

Filesize
4KB

Download
memory/4000-37-0x0000000009560000-0x0000000009561000-memory.dmp

Filesize
4KB

Download
memory/4000-38-0x0000000009510000-0x0000000009511000-memory.dmp

Filesize
4KB

Download
memory/4000-40-0x0000000009500000-0x0000000009501000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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