MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4ca6c67a91a4186d98691455cf74d78d5ea807a35671d0fe7f267d26d28a887e. 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 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4ca6c67a91a4186d98691455cf74d78d5ea807a35671d0fe7f267d26d28a887e
SHA3-384 hash: df99fafb37cafde7184cf3f99f6def047ea1c8f696446e5c399fa77dea08fd98cbacba4acb4cb1726e6901d77c5813d9
SHA1 hash: 508fb6935bfbe96a7d1e27ca0acd282776bef425
MD5 hash: 20275b1f428fa33325a9469c0d34fb47
humanhash: black-fruit-hawaii-paris
File name:Fonts.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:638'976 bytes
First seen:2024-12-02 13:10:25 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 6144:V81nRshhBjpEOR2CTFVCVMIQJwPBGxZyqDg54E1JoDdu8rv5jHkiOB0Gv5kG1AsZ:VskBjAMwP+y+w4E1C7xsBdAsnTzs
Threatray 96 similar samples on MalwareBazaar
TLSH T1AFD44B0173FA030DF6FB4B74A57200194AB6FD5AFA22D65E1C98A04D166BF60C9B6723
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10522/11/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter adrian__luca
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
1
# of downloads :
369
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Fonts.exe
Verdict:
Malicious activity
Analysis date:
2024-12-02 13:28:38 UTC
Tags:
evasion snake keylogger ims-api generic
Link:
https://app.any.run/tasks/39564d1e-68e2-4c1d-ac54-348bff5f068b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.29561.8602.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=674db3ece64d1c722d7b5922
Tags:
virus gates micro
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
DNS request
Connection attempt
Sending an HTTP GET request
Sending a custom TCP request
Reading critical registry keys
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated
Link:
https://www.filescan.io/uploads/674db1f58fd8f251ebff492c/reports/b89192e6-d589-4a20-8149-de17b6ca305e/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/4ca6c67a91a4186d98691455cf74d78d5ea807a35671d0fe7f267d26d28a887e
Malware family:
Snake Keylogger
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b2fbffa6-2e55-4872-8c27-c1c93f23fcfc
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1566613
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
AI detected suspicious sample
Contains functionality to capture screen (.Net source)
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
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)
Yara detected MassLogger RAT
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4ca6c67a91a4186d98691455cf74d78d5ea807a35671d0fe7f267d26d28a887e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4ca6c67a91a4186d98691455cf74d78d5ea807a35671d0fe7f267d26d28a887e/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2024-11-27 09:54:19 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
20 of 38 (52.63%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jstmm6uruqmg3gdjcrk465gxrvpkqb5dkzy5b7t7ez6snuukrb7a._file
Verdict:
malicious
Label(s):
snakekeylogger
Create hunting rule
Similar samples:
3ca1c11c2d4173581e8007b955c912dd1d6abdb1bafe03924aca8cba437df745
MassLogger
4aa26829657bbdb5983129321451365832a69fde42f22687b9a7c598f2e04301
MassLogger
75691dfc15e24ea4920f9309bc68aedf808fb60379c0410d898cafaab4f8328b
MassLogger
c2b5b464df452292c93aef46b5ea83f0f837e2e15021e7cb5ad6aed1709a6188
MassLogger
db8277552d180fadd48f3c2953422ffa24b4cc4569e1931f968d6ee7ec22cf12
MassLogger
+ 86 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
collection discovery spyware stealer
Link:
https://tria.ge/reports/241202-qeyfnszqcn/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Verdict:
Suspicious
Tags:
404Keylogger
YARA:
n/a
Link:
https://app.threat.zone/submission/0ac13cf9-a821-4803-85fe-c5166c2200e0
Unpacked files
SH256 hash:
beb4114748c9110b3a3f1d1e5fb98c0a8d79d045c142bd9e09fdba1847a31edc
MD5 hash:
30e5c9df53f0f3fed30010adc51cee24
SHA1 hash:
902cacc0ae6dd7ccfb1677616252eb9add30931c
Detections:
win_masslogger_w0
Create hunting rule
win_404keylogger_g1
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
MAL_Envrial_Jan18_1
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Link:
https://www.unpac.me/results/5f467d6b-ad72-4efc-ad3e-d5634bcb9789/
SH256 hash:
ecb129cce94db8594bc69eda1ead471db15bdd784afc9a2e8adc56ef3bb71888
MD5 hash:
27c52e96a5804196921c61a1c22172ea
SHA1 hash:
45c12029ad318a8240e75305e89b61a06532c8af
Detections:
SUSP_NET_Large_Static_Array_In_Small_File_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/5f467d6b-ad72-4efc-ad3e-d5634bcb9789/
Parent samples :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 hash:
a45a5f7774f34ccdb73871a1db2bb1bb81382c48547e8a138e69688c78878ef3
MD5 hash:
bb82d7e30a2d99bf5578050919fd3d8a
SHA1 hash:
268631bc3e27542d72816587e4b3090072a87d3d
Link:
https://www.unpac.me/results/5f467d6b-ad72-4efc-ad3e-d5634bcb9789/
SH256 hash:
4ca6c67a91a4186d98691455cf74d78d5ea807a35671d0fe7f267d26d28a887e
MD5 hash:
20275b1f428fa33325a9469c0d34fb47
SHA1 hash:
508fb6935bfbe96a7d1e27ca0acd282776bef425
Link:
https://www.unpac.me/results/5f467d6b-ad72-4efc-ad3e-d5634bcb9789/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4ca6c67a91a4/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/4ca6c67a91a4186d98691455cf74d78d5ea807a35671d0fe7f267d26d28a887e

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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:RansomPyShield_Antiransomware
Create hunting rule
Author:XiAnzheng
Description:Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP)
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

MassLogger

Executable exe 4ca6c67a91a4186d98691455cf74d78d5ea807a35671d0fe7f267d26d28a887e

(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

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