MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 efd86329975988f4c9e3178d139e82558d9ab07bb53dea0c5b6d0b234bb5cd35. 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: 13


Intelligence 13 IOCs YARA 20 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: efd86329975988f4c9e3178d139e82558d9ab07bb53dea0c5b6d0b234bb5cd35
SHA3-384 hash: 1550ce8f1bdc1adb9b635cf4411aa4ed5859680c1b8d2e628f82a7cc76ded42d6958e1b566eea2cf29dda9ca0a124d5a
SHA1 hash: 60a8841a8d7e074a81ed2f6a49b853b83ef220ca
MD5 hash: e10205715f674c1e004c6dbfced1d278
humanhash: south-vegan-potato-blue
File name:MB263350411AE_1.scr
Download: download sample
Signature MassLogger
Create hunting rule
File size:578'056 bytes
First seen:2025-01-14 12:55:16 UTC
Last seen:2025-01-15 12:19:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'743 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:0YRxA4Y5lyA/BxSPCFrbVZ4vKb6II6fcqQ236XRNBIFVkR:rRYpgKmL6tIXRv2o
TLSH T13DC40154321AE902C0960B701A72D3F96B359E99BA20C353DFE97EFFBD367812640352
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 Racco42
Tags:exe MassLogger scr

Intelligence

File Origin
# of uploads :
2
# of downloads :
191
Origin country :
Vendor Threat Intelligence
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67865ee34487910100dede99
Tags:
snake shell virus msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
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
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/67865eecf6ef415507db25ac/reports/68aac097-83b5-4d13-bb8c-bbe05cb8ec1f/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/efd86329975988f4c9e3178d139e82558d9ab07bb53dea0c5b6d0b234bb5cd35
Result
Verdict:
UNKNOWN
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/7cc874ac-0784-413e-b438-289102dc2eed
Result
Threat name:
MassLogger RAT, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1590687
Signature
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Found malware configuration
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
Machine Learning detection for sample
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 PureLog Stealer
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1590687 Sample: MB263350411AE_1.scr.exe Startdate: 14/01/2025 Architecture: WINDOWS Score: 100 48 reallyfreegeoip.org 2->48 50 checkip.dyndns.org 2->50 52 checkip.dyndns.com 2->52 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 Sigma detected: Scheduled temp file as task from temp location 2->58 62 8 other signatures 2->62 8 MB263350411AE_1.scr.exe 7 2->8         started        12 nDVstwLnVvg.exe 5 2->12         started        signatures3 60 Tries to detect the country of the analysis system (by using the IP) 48->60 process4 file5 36 C:\Users\user\AppData\...\nDVstwLnVvg.exe, PE32 8->36 dropped 38 C:\Users\...\nDVstwLnVvg.exe:Zone.Identifier, ASCII 8->38 dropped 40 C:\Users\user\AppData\Local\...\tmp1488.tmp, XML 8->40 dropped 42 C:\Users\user\...\MB263350411AE_1.scr.exe.log, ASCII 8->42 dropped 64 Uses schtasks.exe or at.exe to add and modify task schedules 8->64 66 Adds a directory exclusion to Windows Defender 8->66 14 powershell.exe 23 8->14         started        17 MB263350411AE_1.scr.exe 15 2 8->17         started        20 schtasks.exe 1 8->20         started        68 Multi AV Scanner detection for dropped file 12->68 70 Machine Learning detection for dropped file 12->70 72 Injects a PE file into a foreign processes 12->72 22 nDVstwLnVvg.exe 12->22         started        24 schtasks.exe 1 12->24         started        26 nDVstwLnVvg.exe 12->26         started        signatures6 process7 dnsIp8 74 Loading BitLocker PowerShell Module 14->74 28 WmiPrvSE.exe 14->28         started        30 conhost.exe 14->30         started        44 checkip.dyndns.com 193.122.130.0, 49735, 49737, 80 ORACLE-BMC-31898US United States 17->44 46 reallyfreegeoip.org 104.21.16.1, 443, 49736, 49739 CLOUDFLARENETUS United States 17->46 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/efd86329975988f4c9e3178d139e82558d9ab07bb53dea0c5b6d0b234bb5cd35
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/efd86329975988f4c9e3178d139e82558d9ab07bb53dea0c5b6d0b234bb5cd35/
Threat name:
Win32.Trojan.Znyonm
Create hunting rule
Status:
Malicious
First seen:
2025-01-14 09:05:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=57mggkmxlgepjspdc6grhhuckwgzvmd3wu66udc3nufsgs5vzu2q._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
collection discovery execution spyware stealer
Link:
https://tria.ge/reports/250114-p6bwbaylf1/
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/53bd7319-0bb7-4747-a0f4-481001adfbb1
Unpacked files
SH256 hash:
05d9ede6984a9ab13f324cc4a7c47aec1ef325c0b3fc2f9d30a7190e710fbd21
MD5 hash:
7c31de362a6663ed405046167c271760
SHA1 hash:
b56d15758cb77998528ddd81dad088a5a1b822d1
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/20669436-d2fd-4513-ac24-ff6202a518a7/
SH256 hash:
baeb0c28f054433986f63d2a9db722b5c0bee8a44fb4d03d2ebbea9827221efe
MD5 hash:
d0ce726175f3292183d0bb0f329b7265
SHA1 hash:
603bf3b2988a998ddcb6d94ef4225609ece0f8e8
Detections:
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/20669436-d2fd-4513-ac24-ff6202a518a7/
Parent samples :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 hash:
3aa7ca05584211acc2467c39553e7a045c6b5ba59ff266127801be4cddbd0cbb
MD5 hash:
35e1b4bc5de79edb713c8692cb4efd38
SHA1 hash:
06e23eedcbfa52850fd10fb7764431a452b90a7e
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/20669436-d2fd-4513-ac24-ff6202a518a7/
Parent samples :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 hash:
efd86329975988f4c9e3178d139e82558d9ab07bb53dea0c5b6d0b234bb5cd35
MD5 hash:
e10205715f674c1e004c6dbfced1d278
SHA1 hash:
60a8841a8d7e074a81ed2f6a49b853b83ef220ca
Link:
https://www.unpac.me/results/20669436-d2fd-4513-ac24-ff6202a518a7/
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/efd86329975988f4c9e3178d139e82558d9ab07bb53dea0c5b6d0b234bb5cd35

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:NETexecutableMicrosoft
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:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
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 efd86329975988f4c9e3178d139e82558d9ab07bb53dea0c5b6d0b234bb5cd35

(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