masslogger | 1c2f10aaf4e8b9a9e90316e8b470616bac893609cd85374cb11bb4a1a3971e5b

Analysis

max time kernel
142s
max time network
130s
platform
windows7_x64
resource
win7v200430
submitted
09/07/2020, 18:31

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General

Target
Sales note PO53.exe
Size 861KB
Sample200709-brzyymv49x
SHA256 1c2f10aaf4e8b9a9e90316e8b470616bac893609cd85374cb11bb4a1a3971e5b
MD5 3e414d89b9f98f4cc6c5988634791c0a
SHA1 fd7d1e1c6b49b97db475ccc56958bee3964ad766
SHA512 a7781136e267d2549d9f248830951170f4b6eaabbaa212df3307362a895414ae85ece41c25d1256e09302d5b1c603ca45d1e1753dac85ed5493acb2b8cbe6508
MD5 SHA1 SHA512

Score

10^/10

spyware stealer masslogger

Malware Config

Signatures

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
5	api.ipify.org

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

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 676 wrote to memory of 1712	676	Sales note PO53.exe	26
PID 676 wrote to memory of 1712	676	Sales note PO53.exe	26
PID 676 wrote to memory of 1712	676	Sales note PO53.exe	26
PID 676 wrote to memory of 1712	676	Sales note PO53.exe	26
PID 676 wrote to memory of 1712	676	Sales note PO53.exe	26
PID 676 wrote to memory of 1712	676	Sales note PO53.exe	26
PID 676 wrote to memory of 1712	676	Sales note PO53.exe	26
PID 676 wrote to memory of 1712	676	Sales note PO53.exe	26
PID 676 wrote to memory of 1712	676	Sales note PO53.exe	26

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 676 set thread context of 1712	676	Sales note PO53.exe	26

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1712	Sales note PO53.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1712	Sales note PO53.exe

MassLogger log file 1 IoCs

Detects a log file produced by MassLogger.

yara_rule
masslogger_log_file

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

C:\Users\Admin\AppData\Local\Temp\Sales note PO53.exe
"C:\Users\Admin\AppData\Local\Temp\Sales note PO53.exe"
1⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
PID:676
- C:\Users\Admin\AppData\Local\Temp\Sales note PO53.exe
  "{path}"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious behavior: EnumeratesProcesses
  PID:1712

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1712-2-0x0000000000400000-0x000000000049A000-memory.dmp

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memory/1712-4-0x0000000000400000-0x000000000049A000-memory.dmp

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memory/1712-5-0x0000000000400000-0x000000000049A000-memory.dmp

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