MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cf34f37cacd360a8dc2578edc225661e36e3bd1b8b51019507cf523a4b9f9418. 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: 18


Intelligence 18 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cf34f37cacd360a8dc2578edc225661e36e3bd1b8b51019507cf523a4b9f9418
SHA3-384 hash: c74a6f513a941500c835aa6648a441a37d586a7c02560aa0b8e0665289767b82e16a0374eaa67961efad7fac3f6db06e
SHA1 hash: 3b25722594fcf3910d913547f7e7c82dbf41f1ae
MD5 hash: 4975e98511edcd50ab8a7c633cf66c67
humanhash: seventeen-whiskey-eleven-wisconsin
File name:EP3C10F256C8N340pc-Intelparts.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:651'264 bytes
First seen:2025-07-29 06:25:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 6144:yPV0GsYWEWYWWh4WeLEWMdj0Rk1Fb+u9PgE9QZiVO2JFGIDjXikiWas6IpTbJF5S:WJ90Rk1Fh9LgGO2JUIDjXEU62bH9t4p
Threatray 619 similar samples on MalwareBazaar
TLSH T1F0D4F12073F6CD03C9DD437C05A3E1740379AE5A6613D34E9FE4AEAF792A7A15D120A2
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
dhash icon 0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter lowmal3
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
1
# of downloads :
79
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
_cf34f37cacd360a8dc2578edc225661e36e3bd1b8b51019507cf523a4b9f9418.exe
Verdict:
Malicious activity
Analysis date:
2025-07-29 06:25:51 UTC
Tags:
auto-sch-xml evasion snake keylogger stealer ims-api generic
Link:
https://app.any.run/tasks/67180aa4-8139-449a-8c9c-590aa6b542e5

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/17486/
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68886963af3050dc8d31f431
Tags:
virus krypt spam msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Creating a process with a hidden window
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
Stealing user critical data
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 bitmap lolbin msbuild obfuscated packed packed reconnaissance regsvcs rezer0 roboski schtasks stego telegram vbc
Link:
https://www.filescan.io/uploads/68886960c79df08ef0976187/reports/c83ab069-6ff3-4742-b81b-7ab89df58869/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/cf34f37cacd360a8dc2578edc225661e36e3bd1b8b51019507cf523a4b9f9418
Malware family:
Snake Keylogger
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ded2d7b9-28f9-4458-a82a-506b490a5ff9
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/1746081
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
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 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
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
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: 1746081 Sample: EP3C10F256C8N340pc-Intelparts.exe Startdate: 29/07/2025 Architecture: WINDOWS Score: 100 50 reallyfreegeoip.org 2->50 52 mail.gtit.pl 2->52 54 2 other IPs or domains 2->54 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 Sigma detected: Scheduled temp file as task from temp location 2->60 64 10 other signatures 2->64 8 EP3C10F256C8N340pc-Intelparts.exe 7 2->8         started        12 uwNESb.exe 5 2->12         started        signatures3 62 Tries to detect the country of the analysis system (by using the IP) 50->62 process4 file5 36 C:\Users\user\AppData\Roaming\uwNESb.exe, PE32 8->36 dropped 38 C:\Users\user\...\uwNESb.exe:Zone.Identifier, ASCII 8->38 dropped 40 C:\Users\user\AppData\Local\...\tmp5856.tmp, XML 8->40 dropped 42 C:\...P3C10F256C8N340pc-Intelparts.exe.log, ASCII 8->42 dropped 66 Uses schtasks.exe or at.exe to add and modify task schedules 8->66 68 Adds a directory exclusion to Windows Defender 8->68 70 Injects a PE file into a foreign processes 8->70 14 powershell.exe 23 8->14         started        17 EP3C10F256C8N340pc-Intelparts.exe 15 2 8->17         started        20 schtasks.exe 1 8->20         started        72 Multi AV Scanner detection for dropped file 12->72 22 uwNESb.exe 12->22         started        24 schtasks.exe 1 12->24         started        26 uwNESb.exe 12->26         started        signatures6 process7 dnsIp8 74 Loading BitLocker PowerShell Module 14->74 28 conhost.exe 14->28         started        30 WmiPrvSE.exe 14->30         started        44 checkip.dyndns.com 193.122.6.168, 49719, 49722, 80 ORACLE-BMC-31898US United States 17->44 46 mail.gtit.pl 89.174.231.105, 49725, 49726, 587 INTERSATPL Poland 17->46 48 reallyfreegeoip.org 104.21.80.1, 443, 49720, 49723 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:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/cf34f37cacd360a8dc2578edc225661e36e3bd1b8b51019507cf523a4b9f9418
Verdict:
inconclusive
YARA:
7 match(es)
Tags:
.Net Executable PDB Path PE (Portable Executable) SOS: 0.24 Win 32 Exe x86
Link:
https://app.malva.re/file/4975e98511edcd50ab8a7c633cf66c67
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cf34f37cacd360a8dc2578edc225661e36e3bd1b8b51019507cf523a4b9f9418/
Verdict:
Malicious
Threat:
Trojan-Spy.MSIL.BPLogger
Link:
https://tip.neiki.dev/file/cf34f37cacd360a8dc2578edc225661e36e3bd1b8b51019507cf523a4b9f9418
Threat name:
Win32.Trojan.SnakeKeylogger
Create hunting rule
Status:
Malicious
First seen:
2025-07-29 02:26:28 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=z42pg7fm2nqkrxbfpdw4ejlgdy3ohpi3rniqdfihz5jdus47sqma._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
novastealer
Create hunting rule
Similar samples:
63a03d1998b2024f980c66873113d4cbd74262cfb1b4c0768246e38928db4b64
MassLogger
7a2a7f0806c0d8a61652d6e5533d4057bfef71c0b794e07772914be2296852de
MassLogger
99eb21753db52508e65ced48f7f5dae3fb00a288e22dd1d54df7bca78f394bb7
MassLogger
cf34f37cacd360a8dc2578edc225661e36e3bd1b8b51019507cf523a4b9f9418
MassLogger
error
MassLogger
f8bb9aecb12614029fc43d6866dafd4de9a703887da83b8efb4bd8a1aac8c2ff
MassLogger
+ 609 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
family:masslogger collection discovery execution persistence spyware stealer
Link:
https://tria.ge/reports/250729-g6wlqadl8z/
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
MassLogger
Masslogger family
Malware Config
C2 Extraction:
https://api.telegram.org/bot7905958978:AAEng8Wyhv-U1eyp4jKpvi8uIC2em6irGnw/sendMessage?chat_id=7629239186
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/7f2e324e-4d67-4bad-818c-c68586b69dbb
Unpacked files
SH256 hash:
cf34f37cacd360a8dc2578edc225661e36e3bd1b8b51019507cf523a4b9f9418
MD5 hash:
4975e98511edcd50ab8a7c633cf66c67
SHA1 hash:
3b25722594fcf3910d913547f7e7c82dbf41f1ae
Link:
https://www.unpac.me/results/86cdac08-74ca-4c71-990b-2cfbb9c4681f/
SH256 hash:
e629d1f8874fbc57458a8c46da886dae9b69e5b111ca16f0899010faefe77ded
MD5 hash:
885b7752986245658de7a2bdb3ae89af
SHA1 hash:
886b0e1e9d016bfca3b3644b84526ced7cbfd877
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/86cdac08-74ca-4c71-990b-2cfbb9c4681f/
SH256 hash:
5fa4963b3729a6bfff1ef66e51b962916da6881c5d7f6d5333f388d6fd4a12aa
MD5 hash:
58d86c2ae41fd6c85507e0b0a3373e7e
SHA1 hash:
8a15afb202f35ecf247c80d5932a6c54093513ce
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/86cdac08-74ca-4c71-990b-2cfbb9c4681f/
SH256 hash:
8d26523d1f9666dfba6e35320172df143d157a4b3f69d56fc383171257ad2c80
MD5 hash:
ab0419ed360d445a6ac977fef081c91c
SHA1 hash:
e4f7a8c0bf7dedcabfacebf5a59dec7817dd45a2
Link:
https://www.unpac.me/results/86cdac08-74ca-4c71-990b-2cfbb9c4681f/
Malware family:
MassLogger
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/cf34f37cacd3/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/cf34f37cacd360a8dc2578edc225661e36e3bd1b8b51019507cf523a4b9f9418

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: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 cf34f37cacd360a8dc2578edc225661e36e3bd1b8b51019507cf523a4b9f9418

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/17486/

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

Comments