MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 998ecbd6fa2654f86d0daa5fb0edfb63a8a6b19b4469d04dd2b4eb27e34ecd86. 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 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 998ecbd6fa2654f86d0daa5fb0edfb63a8a6b19b4469d04dd2b4eb27e34ecd86
SHA3-384 hash: 5f6c317d9ce0ba98bbe273d1c9e182568b2cc851e61dcd6f676590c4b5a2ef476cbbc0623390545c0039dc4d38118d59
SHA1 hash: f0b2db4d954b04151671bd6bff82d301f31f5c49
MD5 hash: d97d8d972fff131b4b3c1a4197d410a1
humanhash: lion-friend-mountain-four
File name:90939298323.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'373'696 bytes
First seen:2025-03-05 14:05:32 UTC
Last seen:2025-03-05 14:38:47 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 24576:Oq1JnNYENNEmnSlK/8lRehInT6Qq1gv9zrtHay4MUd/No:fNbNEmAJmhInT6ziVPdapFtNo
TLSH T1F555E08776CB8AB2EA595772C49F050073E5E582779FCF1A3D8A23B609037EADD0114B
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 James_inthe_box
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
2
# of downloads :
431
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
90939298323.exe
Verdict:
Malicious activity
Analysis date:
2025-03-05 14:12:27 UTC
Tags:
snake keylogger evasion stealer
Link:
https://app.any.run/tasks/8625ff30-c0e1-4ee4-80ea-de58c04d295f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.3259.22547.12395.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
90.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67c85caac668b65489bf31cd
Tags:
autorun snake
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% directory
Launching a process
Creating a process with a hidden window
Сreating synchronization primitives
DNS request
Connection attempt
Sending an HTTP GET request
Sending a custom TCP request
Reading critical registry keys
Creating a window
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
net_reactor obfuscated obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/67c85a59e95d0f9029e458dd/reports/95f83241-fc42-4565-a19c-69984e082edf/overview
Verdict:
Malicious
Labled as:
Jalapeno.Generic
Link:
https://www.hybrid-analysis.com/sample/998ecbd6fa2654f86d0daa5fb0edfb63a8a6b19b4469d04dd2b4eb27e34ecd86
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6bbfdcb7-daa2-4561-afa4-ecfb08f57bb6
Result
Threat name:
MSIL Logger, MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1630137
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
Drops VBS files to the startup folder
Found malware configuration
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Drops script at startup location
Sigma detected: WScript or CScript Dropper
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Yara detected MSIL Logger
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1630137 Sample: 90939298323.exe Startdate: 05/03/2025 Architecture: WINDOWS Score: 100 29 reallyfreegeoip.org 2->29 31 mail.mzgold.ir 2->31 33 2 other IPs or domains 2->33 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 Antivirus / Scanner detection for submitted sample 2->45 49 12 other signatures 2->49 8 90939298323.exe 5 2->8         started        12 wscript.exe 1 2->12         started        signatures3 47 Tries to detect the country of the analysis system (by using the IP) 29->47 process4 file5 23 C:\Users\user\AppData\Roaming\skype.exe, PE32 8->23 dropped 25 C:\Users\user\...\skype.exe:Zone.Identifier, ASCII 8->25 dropped 27 C:\Users\user\AppData\Roaming\...\skype.vbs, ASCII 8->27 dropped 55 Drops VBS files to the startup folder 8->55 57 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->57 14 InstallUtil.exe 15 2 8->14         started        59 Windows Scripting host queries suspicious COM object (likely to drop second stage) 12->59 18 skype.exe 2 12->18         started        signatures6 process7 dnsIp8 35 checkip.dyndns.com 132.226.247.73, 49704, 49707, 80 UTMEMUS United States 14->35 37 mail.mzgold.ir 217.144.107.148, 49706, 49750, 587 NETMIHANIR Iran (ISLAMIC Republic Of) 14->37 39 reallyfreegeoip.org 104.21.112.1, 443, 49705, 49709 CLOUDFLARENETUS United States 14->39 61 Tries to steal Mail credentials (via file / registry access) 14->61 63 Antivirus detection for dropped file 18->63 65 Multi AV Scanner detection for dropped file 18->65 20 InstallUtil.exe 2 18->20         started        signatures9 process10 signatures11 51 Tries to steal Mail credentials (via file / registry access) 20->51 53 Tries to harvest and steal browser information (history, passwords, etc) 20->53
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/998ecbd6fa2654f86d0daa5fb0edfb63a8a6b19b4469d04dd2b4eb27e34ecd86
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/998ecbd6fa2654f86d0daa5fb0edfb63a8a6b19b4469d04dd2b4eb27e34ecd86/
Threat name:
Win32.Exploit.Generic
Create hunting rule
Status:
Malicious
First seen:
2025-03-05 08:51:31 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tghmxvx2ezkpq3invjp3b3p3mouknmm3iru5atoswtvspy2ozwda._file
Verdict:
malicious
Label(s):
purecrypter
Create hunting rule
Similar samples:
error
MassLogger
Result
Malware family:
n/a
Score:
  10/10
Tags:
collection discovery
Link:
https://tria.ge/reports/250305-rejsyszyev/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Drops startup file
Suspicious use of NtCreateUserProcessOtherParentProcess
Verdict:
Malicious
Tags:
404keylogger
YARA:
n/a
Link:
https://app.threat.zone/submission/dd8f387e-ee85-4995-9149-861799547c96
Unpacked files
SH256 hash:
998ecbd6fa2654f86d0daa5fb0edfb63a8a6b19b4469d04dd2b4eb27e34ecd86
MD5 hash:
d97d8d972fff131b4b3c1a4197d410a1
SHA1 hash:
f0b2db4d954b04151671bd6bff82d301f31f5c49
Link:
https://www.unpac.me/results/fbc9fc9d-c8be-4bc6-bf92-3abc719d51bc/
SH256 hash:
e18592b891ac3ab53b55786557358eba20fce84ce4dc529fd591b985ced35216
MD5 hash:
da4c1ccdeba5468f602a0a93eb8c9b33
SHA1 hash:
6580ad14ad4a28d05277e737884fe95c6226dcf4
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/fbc9fc9d-c8be-4bc6-bf92-3abc719d51bc/
SH256 hash:
78f73e1734daa918b253517c75971fbb8df773a3d77d02a752e9a0ad1711a677
MD5 hash:
f9d2985aa1c41cca281321fffb5ed424
SHA1 hash:
3a7a58d2dcae2762882357ae34d372744b1dbb9d
Link:
https://www.unpac.me/results/fbc9fc9d-c8be-4bc6-bf92-3abc719d51bc/
SH256 hash:
19efdf03cb94895935225795f68bb9abfded1869687367013b8b4eee3cc99372
MD5 hash:
4e29f75c0c51b9dec76955f0382d9541
SHA1 hash:
4899aa8e3f57339cbaec8faab777897a76fe1c3a
Link:
https://www.unpac.me/results/fbc9fc9d-c8be-4bc6-bf92-3abc719d51bc/
SH256 hash:
356f2aa957297ef77cf9af4b9ff5f36d775bbde8b3b91260f5f00227f5b53533
MD5 hash:
769bd496030663905f7fd357cb965a59
SHA1 hash:
651b003703929cf598faf6a7374100e71f56b959
Link:
https://www.unpac.me/results/fbc9fc9d-c8be-4bc6-bf92-3abc719d51bc/
SH256 hash:
5c4969251eae6792bcb458f8c488a4db84e897191e979486614e5b4c982bb749
MD5 hash:
366f0451e6b49d37ec9e4bbda9648563
SHA1 hash:
b0149bf8a8cc3c4fb58ae91532a5c2d62a7d1311
Detections:
win_masslogger_w0
Create hunting rule
win_404keylogger_g1
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/fbc9fc9d-c8be-4bc6-bf92-3abc719d51bc/
Parent samples :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:
Malicious
Link:
https://www.vmray.com/analyses/_mb/998ecbd6fa26/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/998ecbd6fa2654f86d0daa5fb0edfb63a8a6b19b4469d04dd2b4eb27e34ecd86

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: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:NETexecutableMicrosoft
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 998ecbd6fa2654f86d0daa5fb0edfb63a8a6b19b4469d04dd2b4eb27e34ecd86

(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

Comments