MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4aa131a921ad374fad2e491d0eb637a27d8bc7dd2b1ffa48a31ea64896231107. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


MassLogger


Vendor detections: 16


Intelligence 16 IOCs YARA 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4aa131a921ad374fad2e491d0eb637a27d8bc7dd2b1ffa48a31ea64896231107
SHA3-384 hash: 7c00a32cdf407461ab14044ea2a12c9259665bff4dea593208b74cddf86024ff6b62c5a3ebe2b68dc956590deea0273f
SHA1 hash: 03e00d2a160bff440a17621227df3f4f2b05d7ec
MD5 hash: c693c6201d7c7700d05039fc91e351fd
humanhash: may-wyoming-jig-virginia
File name:quote.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:571'392 bytes
First seen:2025-04-02 07:50:29 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:WdxHYyOn6nzxjudYj8S2aeis9EGWdnH0ZHli7rYN:8Y9n6nhdj8V+sfu0ZHlOa
Threatray 1'941 similar samples on MalwareBazaar
TLSH T15BC4F158A609D617CA861BB85A71F234237D6EEEE801E3074FDCBDEF7966B414D041C2
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter adrian__luca
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
1
# of downloads :
85
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
quote.rar
Verdict:
Malicious activity
Analysis date:
2025-03-25 07:20:34 UTC
Tags:
arch-exec evasion snake keylogger stealer
Link:
https://app.any.run/tasks/46f1eb47-4c82-48b5-99dd-5e01ed4602cc

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/101/
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67ecef73855e5ec5240c1c52
Tags:
virus spawn msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
DNS request
Connection attempt
Sending an HTTP GET request
Sending a custom TCP request
Reading critical registry keys
Adding an exclusion to Microsoft Defender
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/67ecec81f274bf2d8e2de4ff/reports/a0a0a705-bfa6-4053-90ed-14882d002c17/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/4aa131a921ad374fad2e491d0eb637a27d8bc7dd2b1ffa48a31ea64896231107
Malware family:
Snake Keylogger
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f99ef5f2-98f5-49e3-80eb-d060d0d59660
Result
Threat name:
MSIL Logger, MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1654371
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Tries to detect the country of the analysis system (by using the IP)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AntiVM3
Yara detected MassLogger RAT
Yara detected MSIL Logger
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1654371 Sample: quote.exe Startdate: 02/04/2025 Architecture: WINDOWS Score: 100 27 reallyfreegeoip.org 2->27 29 checkip.dyndns.org 2->29 31 checkip.dyndns.com 2->31 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Antivirus / Scanner detection for submitted sample 2->49 53 10 other signatures 2->53 8 quote.exe 4 2->8         started        12 svchost.exe 1 1 2->12         started        signatures3 51 Tries to detect the country of the analysis system (by using the IP) 27->51 process4 dnsIp5 25 C:\Users\user\AppData\Local\...\quote.exe.log, ASCII 8->25 dropped 55 Adds a directory exclusion to Windows Defender 8->55 57 Injects a PE file into a foreign processes 8->57 15 quote.exe 15 2 8->15         started        19 powershell.exe 23 8->19         started        33 127.0.0.1 unknown unknown 12->33 file6 signatures7 process8 dnsIp9 35 checkip.dyndns.com 193.122.130.0, 49692, 80 ORACLE-BMC-31898US United States 15->35 37 reallyfreegeoip.org 104.21.64.1, 443, 49693 CLOUDFLARENETUS United States 15->37 39 Tries to steal Mail credentials (via file / registry access) 15->39 41 Tries to harvest and steal browser information (history, passwords, etc) 15->41 43 Loading BitLocker PowerShell Module 19->43 21 WmiPrvSE.exe 19->21         started        23 conhost.exe 19->23         started        signatures10 process11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4aa131a921ad374fad2e491d0eb637a27d8bc7dd2b1ffa48a31ea64896231107
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4aa131a921ad374fad2e491d0eb637a27d8bc7dd2b1ffa48a31ea64896231107/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2025-03-25 12:59:42 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
19 of 24 (79.17%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jkqtdkjbvu3u7ljojeoq5nrxuj6yxr65fmp7usfdd2terfrdcedq._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
novastealer
Create hunting rule
Similar samples:
6f0ba4f0e3a40f9bb1b63915cd1bcd5c55e586b2b797c6982c26099887c15a03
MassLogger
8432a87c1daeb7a4a13a6bee0ab55d5c96919b2d29dfddc5682f9289023a5ed6
MassLogger
b41c2dc07ebec91f9606b75710eab439f1a4928874180aa36748527f96512c8d
MassLogger
dfd642ed5f14bce81563b3921c242393a9ac2a1865a8344af8b29b9faaa16a7f
MassLogger
+ 1'931 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
collection discovery execution spyware stealer
Link:
https://tria.ge/reports/250402-jpzm6awnw3/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Checks computer location settings
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Command and Scripting Interpreter: PowerShell
Verdict:
Malicious
Tags:
404keylogger
YARA:
n/a
Link:
https://app.threat.zone/submission/e808229a-944f-47df-89ef-8b04356f7f5f
Unpacked files
SH256 hash:
4aa131a921ad374fad2e491d0eb637a27d8bc7dd2b1ffa48a31ea64896231107
MD5 hash:
c693c6201d7c7700d05039fc91e351fd
SHA1 hash:
03e00d2a160bff440a17621227df3f4f2b05d7ec
Link:
https://www.unpac.me/results/7f7112fc-50fe-4d14-9faf-3c9e87934317/
SH256 hash:
62f7a979329acb89574d4fadf63902232435a87659e8238a408c53c3af05ee21
MD5 hash:
c3a607a64cd7227d3cbb9c02b2336f6a
SHA1 hash:
0bfb6d1d790ec88f4c79ad220ae4a492ac475024
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/7f7112fc-50fe-4d14-9faf-3c9e87934317/
SH256 hash:
812ad4386f640e02d8a95f2ebbf4e3e097786e5947f21f58c2161b2d909b6b9b
MD5 hash:
69106971ddfaeec56b5839b7866fbe5b
SHA1 hash:
1c74912fa130b63346488d17e9561cf0b66cf6be
Link:
https://www.unpac.me/results/7f7112fc-50fe-4d14-9faf-3c9e87934317/
SH256 hash:
ac7167bc901c7ed0357baf16ab2ed8eacd6f2af92db36edd153328321cc8685f
MD5 hash:
d35df86dd6aa955b44c0793b29f38bbf
SHA1 hash:
c04d923abcdeb026490e29fde624f7876130ee22
Detections:
win_404keylogger_g1
Create hunting rule
win_masslogger_w0
Create hunting rule
MAL_Envrial_Jan18_1
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
Link:
https://www.unpac.me/results/7f7112fc-50fe-4d14-9faf-3c9e87934317/
Parent samples :
4aa131a921ad374fad2e491d0eb637a27d8bc7dd2b1ffa48a31ea64896231107
7e6f3a59c25802e0ac8ad91502b3b5ac25775195d7447b870cf4c28f9aa0db5f
Malware family:
PrivateLogger
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4aa131a921ad/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4aa131a921ad374fad2e491d0eb637a27d8bc7dd2b1ffa48a31ea64896231107

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:crime_snake_keylogger
Create hunting rule
Author:Rony (r0ny_123)
Description:Detects Snake keylogger payload
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
Author:ditekSHen
Description:Detects executables using Telegram Chat Bot
Rule name:MAL_Envrial_Jan18_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Encrial credential stealer malware
Reference:https://twitter.com/malwrhunterteam/status/953313514629853184
Rule name:MAL_Envrial_Jan18_1_RID2D8C
Create hunting rule
Author:Florian Roth
Description:Detects Encrial credential stealer malware
Reference:https://twitter.com/malwrhunterteam/status/953313514629853184
Rule name:masslogger_gcch
Create hunting rule
Author:govcert_ch
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:telegram_bot_api
Create hunting rule
Author:rectifyq
Description:Detects file containing Telegram Bot API
Rule name:Windows_Trojan_SnakeKeylogger_af3faa65
Create hunting rule
Author:Elastic Security
Rule name:win_masslogger_w0
Create hunting rule
Author:govcert_ch

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

MassLogger

Executable exe 4aa131a921ad374fad2e491d0eb637a27d8bc7dd2b1ffa48a31ea64896231107

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/101/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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