MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3fd28257bdeaa92317003361ab95675732239e5282fde0ac2e2c7bf941ba1c98. 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: 15


Intelligence 15 IOCs YARA 5 File information Comments
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SHA256 hash: 3fd28257bdeaa92317003361ab95675732239e5282fde0ac2e2c7bf941ba1c98
SHA3-384 hash: a47384db0a43d02925734c5d72a190a46b1507ca7c3ccb236c9accbd1cca0bd4fff93865d3174f9d19108208ea495b2c
SHA1 hash: a015c7e13daff371b8be0fb1f3b39fbf364ed403
MD5 hash: 534b40a7f491ac427eed5f96731d1e34
humanhash: uncle-football-video-zulu
File name:PI 04343.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:620'544 bytes
First seen:2025-02-28 05:58:09 UTC
Last seen:2025-02-28 06:31:20 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:eRZGcBagxB3oGAJOvhyXyV/0tQww9mJP2iVWxwt7SjtiQ:e2M5Tq8yXyV8trw9y2iqcQ
TLSH T18ED4015DAB929A36C7CE1F73C003110C86F79897F362F7A61CDA18E60D19385856E9E3
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10522/11/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
Reporter threatcat_ch
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
2
# of downloads :
527
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PI 04343.exe
Verdict:
Malicious activity
Analysis date:
2025-02-28 06:00:11 UTC
Tags:
evasion snake keylogger stealer telegram ims-api generic
Link:
https://app.any.run/tasks/66d2f50d-1086-48e0-b305-66f1715c485c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.RATX-gen.26022.27671.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67c150982dfba428b46f0a9d
Tags:
backdoor micro shell
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
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
Enabling autorun by creating a file
Verdict:
Malicious
Labled as:
HackTool[Obfuscator]/MSIL.DeepSea
Link:
https://www.hybrid-analysis.com/sample/3fd28257bdeaa92317003361ab95675732239e5282fde0ac2e2c7bf941ba1c98
Result
Verdict:
SUSPICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Snake Keylogger
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4153b3d3-be17-49be-865c-5ba9523e5306
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/1626262
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Suricata IDS alerts for network traffic
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Uses the Telegram API (likely for C&C communication)
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: 1626262 Sample: PI 04343.exe Startdate: 28/02/2025 Architecture: WINDOWS Score: 100 50 reallyfreegeoip.org 2->50 52 api.telegram.org 2->52 54 4 other IPs or domains 2->54 56 Suricata IDS alerts for network traffic 2->56 58 Found malware configuration 2->58 60 Malicious sample detected (through community Yara rule) 2->60 66 15 other signatures 2->66 8 PI 04343.exe 7 2->8         started        12 oyRplXWwb.exe 5 2->12         started        signatures3 62 Tries to detect the country of the analysis system (by using the IP) 50->62 64 Uses the Telegram API (likely for C&C communication) 52->64 process4 file5 36 C:\Users\user\AppData\Roaming\oyRplXWwb.exe, PE32 8->36 dropped 38 C:\Users\...\oyRplXWwb.exe:Zone.Identifier, ASCII 8->38 dropped 40 C:\Users\user\AppData\Local\...\tmpCDFE.tmp, XML 8->40 dropped 42 C:\Users\user\AppData\...\PI 04343.exe.log, ASCII 8->42 dropped 68 Adds a directory exclusion to Windows Defender 8->68 14 powershell.exe 23 8->14         started        17 PI 04343.exe 15 2 8->17         started        20 schtasks.exe 1 8->20         started        26 2 other processes 8->26 70 Antivirus detection for dropped file 12->70 72 Multi AV Scanner detection for dropped file 12->72 22 oyRplXWwb.exe 12->22         started        24 schtasks.exe 1 12->24         started        signatures6 process7 dnsIp8 74 Loading BitLocker PowerShell Module 14->74 28 WmiPrvSE.exe 14->28         started        30 conhost.exe 14->30         started        44 api.telegram.org 149.154.167.220, 443, 49742, 49744 TELEGRAMRU United Kingdom 17->44 46 checkip.dyndns.com 193.122.130.0, 49736, 49740, 80 ORACLE-BMC-31898US United States 17->46 48 reallyfreegeoip.org 104.21.64.1, 443, 49738, 49741 CLOUDFLARENETUS United States 17->48 32 conhost.exe 20->32         started        76 Tries to steal Mail credentials (via file / registry access) 22->76 78 Tries to harvest and steal browser information (history, passwords, etc) 22->78 34 conhost.exe 24->34         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/3fd28257bdeaa92317003361ab95675732239e5282fde0ac2e2c7bf941ba1c98
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3fd28257bdeaa92317003361ab95675732239e5282fde0ac2e2c7bf941ba1c98/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-02-28 01:40:55 UTC
File Type:
PE (.Net Exe)
AV detection:
22 of 38 (57.89%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=h7jiev555kusgfyagnq2xflhk4zchhssql66blbofr57sqn2dsma._file
Verdict:
malicious
Label(s):
novastealer
Create hunting rule
unknown_loader_037
Create hunting rule
Similar samples:
error
MassLogger
Result
Malware family:
n/a
Score:
  8/10
Tags:
collection discovery execution spyware stealer
Link:
https://tria.ge/reports/250228-gpgfgaswdz/
Behaviour
Scheduled Task/Job: Scheduled Task
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/02778232-b5f1-4b6c-b213-9acb70a38d59
Unpacked files
SH256 hash:
3fd28257bdeaa92317003361ab95675732239e5282fde0ac2e2c7bf941ba1c98
MD5 hash:
534b40a7f491ac427eed5f96731d1e34
SHA1 hash:
a015c7e13daff371b8be0fb1f3b39fbf364ed403
Link:
https://www.unpac.me/results/aa98e1f6-de01-447c-aeaf-efab9566b407/
SH256 hash:
3772f97177d6ada7ca85a1b1b6eeb26ad2fee2f5cefdcd0458acbbc08dda7783
MD5 hash:
fc24c7ecd55e4ce0b9ba74d38a70f7f1
SHA1 hash:
4500383e21c3ed8c78d6a2f30f454d6b82ea9779
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/aa98e1f6-de01-447c-aeaf-efab9566b407/
SH256 hash:
1d9e1f290d58efde4e1f357608cbf4ff11658eb6c40ab98f5f16c13273eb0e7f
MD5 hash:
f7cf3c19644379d52c0ac211c9419dcd
SHA1 hash:
5d97e228d260771aaa8538335987127152fea372
Link:
https://www.unpac.me/results/aa98e1f6-de01-447c-aeaf-efab9566b407/
SH256 hash:
2031959b67cf28d179be43896b22577849e7b498eed267672679a7a03d17cd63
MD5 hash:
2474ab047b8bf1cc5e609e3e1e9f4859
SHA1 hash:
9a21d83408c13a9fe56c52f0d1a392e49730432f
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/aa98e1f6-de01-447c-aeaf-efab9566b407/
Parent samples :
2e7fac97bc9785e461473c2776be1da2d9dfe7916753d4a3148c5055edeb9bd6
dbf83094e42dc231fe1a1b00f3fe1e4cbfaed8757afdb3d5a166e91d3b3733ea
3fd28257bdeaa92317003361ab95675732239e5282fde0ac2e2c7bf941ba1c98
15e3d2f2ae29c63206f13aa1768289a830ac2ef71c83227e3bc61a634ad7b05e
b6c45c8c84ef7a1dfb09d090edb513c90561a1094cd3a25caa644a486e0828ae
1081e4e28ab35a70584e49c4a5dbd783b02c9380e797c5e542d93f5ebbda9ab5
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/3fd28257bdeaa92317003361ab95675732239e5282fde0ac2e2c7bf941ba1c98

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
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)

File information

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

Malspam

MassLogger

Executable exe 3fd28257bdeaa92317003361ab95675732239e5282fde0ac2e2c7bf941ba1c98

(this sample)

  
Delivery method
Distributed via e-mail attachment

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 (GUARD_CF)high

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