MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c3f9616bfc8b4e899bc5bebb87ff26a4582f5ce8387388d7a6581268b02298a5. 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 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c3f9616bfc8b4e899bc5bebb87ff26a4582f5ce8387388d7a6581268b02298a5
SHA3-384 hash: a599103df60124fbfd38cfebdfec6dc7881cccd34e10448ba6b6aa323ec1c2f43bf19105edaf55e0e5887da1b212bf06
SHA1 hash: 0225932bb4a5e1427f21ed87878b8186933e3d6d
MD5 hash: e56b219fae804dcf19fb3c3613b49791
humanhash: magnesium-october-sweet-comet
File name:PO-00612349.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:528'392 bytes
First seen:2025-03-21 08:22:44 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:OizlBJR/LqAJ6QQpMO++q88bSOMHbttU2g0+sV0U8yQkR:OsbL+QYnBxtYmGeX
Threatray 2'644 similar samples on MalwareBazaar
TLSH T15CB4019966A9AF03C9B65BF10A50C17187F22EDE6A20D21F5FD63EEF30B1B542641307
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 TeamDreier
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
1
# of downloads :
561
Origin country :
DK DK
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO-00612349.exe
Verdict:
Malicious activity
Analysis date:
2025-03-21 08:25:26 UTC
Tags:
evasion snake keylogger netreactor stealer ims-api generic
Link:
https://app.any.run/tasks/503bef49-5ee4-4712-aca7-d1e6d0b4eec2

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
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
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
Threat level:
  10/10
Confidence:
100%
Tags:
expired-cert invalid-signature obfuscated packed packed packer_detected phishing signed vbnet
Link:
https://www.filescan.io/uploads/67dd21fbb93e688233f1dfca/reports/285234dc-84a7-4cab-b407-7a894c43af67/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/c3f9616bfc8b4e899bc5bebb87ff26a4582f5ce8387388d7a6581268b02298a5
Result
Verdict:
MALICIOUS
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/ddaab2f6-ff45-4e68-aca4-04771538ebaf
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/1644986
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: 1644986 Sample: PO-00612349.exe Startdate: 21/03/2025 Architecture: WINDOWS Score: 100 50 reallyfreegeoip.org 2->50 52 checkip.dyndns.org 2->52 54 checkip.dyndns.com 2->54 60 Found malware configuration 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 Sigma detected: Scheduled temp file as task from temp location 2->64 68 10 other signatures 2->68 8 PO-00612349.exe 7 2->8         started        12 OiGAGKv.exe 5 2->12         started        signatures3 66 Tries to detect the country of the analysis system (by using the IP) 50->66 process4 file5 42 C:\Users\user\AppData\Roaming\OiGAGKv.exe, PE32 8->42 dropped 44 C:\Users\user\...\OiGAGKv.exe:Zone.Identifier, ASCII 8->44 dropped 46 C:\Users\user\AppData\Local\...\tmp665D.tmp, XML 8->46 dropped 48 C:\Users\user\AppData\...\PO-00612349.exe.log, ASCII 8->48 dropped 70 Uses schtasks.exe or at.exe to add and modify task schedules 8->70 72 Adds a directory exclusion to Windows Defender 8->72 14 powershell.exe 23 8->14         started        17 powershell.exe 23 8->17         started        19 PO-00612349.exe 15 2 8->19         started        28 2 other processes 8->28 74 Multi AV Scanner detection for dropped file 12->74 76 Injects a PE file into a foreign processes 12->76 22 OiGAGKv.exe 12->22         started        24 schtasks.exe 12->24         started        26 OiGAGKv.exe 12->26         started        30 2 other processes 12->30 signatures6 process7 dnsIp8 78 Loading BitLocker PowerShell Module 14->78 32 conhost.exe 14->32         started        34 WmiPrvSE.exe 14->34         started        36 conhost.exe 17->36         started        56 checkip.dyndns.com 132.226.8.169, 49717, 49719, 80 UTMEMUS United States 19->56 58 reallyfreegeoip.org 104.21.96.1, 443, 49718, 49720 CLOUDFLARENETUS United States 19->58 80 Tries to steal Mail credentials (via file / registry access) 22->80 82 Tries to harvest and steal browser information (history, passwords, etc) 22->82 38 conhost.exe 24->38         started        40 conhost.exe 28->40         started        signatures9 process10
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c3f9616bfc8b4e899bc5bebb87ff26a4582f5ce8387388d7a6581268b02298a5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c3f9616bfc8b4e899bc5bebb87ff26a4582f5ce8387388d7a6581268b02298a5/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2025-03-20 17:14:32 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
26 of 38 (68.42%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=yp4wc274rnhitg6fx25yp7zgurmc6xhihbzyrv5glajgrmbctcsq._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
novastealer
Create hunting rule
Similar samples:
7b248e4147e3f5e828dc1dc2772ab43138e5dfd5737fa0b30311f585f32001b3
MassLogger
8e63fcd9e5fcdd993a7535a3990f28a4c95740d801dbfde8fb0d338bbae22d4c
MassLogger
9d3170c651c0457d85c4356ce9470c9cc5e3bd4f6ed2aec0b4c29e4116093724
MassLogger
fc2264485a8d86e9817813d394aed7b609fd4cb00d6afa38dcc545294f8b8289
MassLogger
+ 2'634 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
collection discovery execution spyware stealer
Link:
https://tria.ge/reports/250321-j968qsvxgx/
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:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/0b414471-e8d8-4816-a582-6cb234592349
Unpacked files
SH256 hash:
c3f9616bfc8b4e899bc5bebb87ff26a4582f5ce8387388d7a6581268b02298a5
MD5 hash:
e56b219fae804dcf19fb3c3613b49791
SHA1 hash:
0225932bb4a5e1427f21ed87878b8186933e3d6d
Link:
https://www.unpac.me/results/6ad092e7-0f5a-41a9-a8f2-ffc6ee886749/
SH256 hash:
ed7090c87927967c08f1c0b861b1c21ed1cd0885227c31bb4e52e857f657b667
MD5 hash:
ab04dbde3ab78a30cd8ef476fd5e2ee5
SHA1 hash:
2ea3e35075a11b8f762272f19d4efae3caeafc5e
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/6ad092e7-0f5a-41a9-a8f2-ffc6ee886749/
Parent samples :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 hash:
27487f80de512b4edebb935ca367ba726b27114138db95b9f1db8a8f5224c6d6
MD5 hash:
4d45ccc7d60978a31bcb5b95a93f1d73
SHA1 hash:
a073ede41d2292434777a920041aba5e7fc3b5ee
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/6ad092e7-0f5a-41a9-a8f2-ffc6ee886749/
SH256 hash:
8533b8c11f1472647847bedb1a04e9cb2e37d8eb00c50b2dc4401464df47828f
MD5 hash:
baa1fded81f3319108008481fe1902c7
SHA1 hash:
ebcb03369bee659a6e170182c2a3b047e3fbb8e3
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/6ad092e7-0f5a-41a9-a8f2-ffc6ee886749/
Parent samples :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 family:
PrivateLogger
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c3f9616bfc8b/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/c3f9616bfc8b4e899bc5bebb87ff26a4582f5ce8387388d7a6581268b02298a5

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_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
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_Digital_Certificate
Create hunting rule
Author:albertzsigovits
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 c3f9616bfc8b4e899bc5bebb87ff26a4582f5ce8387388d7a6581268b02298a5

(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 (HIGH_ENTROPY_VA)high

Comments