MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b41c2dc07ebec91f9606b75710eab439f1a4928874180aa36748527f96512c8d. 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: 12
| SHA256 hash: | b41c2dc07ebec91f9606b75710eab439f1a4928874180aa36748527f96512c8d |
|---|---|
| SHA3-384 hash: | 658f2c119a77220ac224ec5f228c5a958c75a86bfbfbdb961a58f919df99cacbaa78f8f433bd1a90aa70df5f5d3bd942 |
| SHA1 hash: | 6144ffca2cc3fc94cd7a8fb5effa11364868a1b5 |
| MD5 hash: | 4f1c06343c57a5649acb09e5a6208468 |
| humanhash: | georgia-april-mike-indigo |
| File name: | QUOTATION_MARQUOTE312025�PDF.scr |
| Download: | download sample |
| Signature | MassLogger |
| File size: | 1'574'912 bytes |
| First seen: | 2025-03-31 09:01:12 UTC |
| Last seen: | 2025-03-31 16:05:03 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'656 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger) |
| ssdeep | 24576:erhMH30c1XWEnDT+3R/uRjRdbUQicudsAEFhv3b3dnA8sJQhahsnl:weX1VvOluRnw7cTAop3tqQcg |
| Threatray | 3'732 similar samples on MalwareBazaar |
| TLSH | T18175F098B3B55622D999CB31D4F55E40C3A3EC2B97E9D60825C875AD0E317FE8B03683 |
| 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 |
| dhash icon | 7068ccb0b2b2b2f8 (129 x AgentTesla, 54 x SnakeKeylogger, 28 x AveMariaRAT) |
| Reporter |  lowmal3 |
| Tags: | exe MassLogger |
Intelligence
File Origin
# of uploads :
4
# of downloads :
438
Origin country :
DEVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
QUOTATION_MARQUOTE312025�PDF.scr
Verdict:
Malicious activity
Analysis date:
2025-03-31 09:08:29 UTC
Tags:
purecrypter netreactor evasion snake keylogger stealer
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Verdict:
Malicious
Score:
96.5%
Tags:
smartassembly packed virus
Result
Verdict:
Clean
Maliciousness:
Behaviour
Searching for the window
Launching a process
Verdict:
Malicious
Labled as:
MSIL/Kryptik_AGeneric.DMD trojan
Verdict:
Unknown
Result
Threat name:
MSIL Logger, MassLogger RAT
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
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)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Yara detected MSIL Logger
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Threat name:
ByteCode-MSIL.Trojan.CrypterX
Status:
Malicious
First seen:
2025-03-31 09:02:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
27
AV detection:
17 of 24 (70.83%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
novastealer
Similar samples:
+ 3'722 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
7/10
Tags:
collection discovery spyware stealer
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:
Malicious
Tags:
Win.Packed.Msilheracles-10017859-0 404keylogger
YARA:
n/a
Unpacked files
SH256 hash:
b41c2dc07ebec91f9606b75710eab439f1a4928874180aa36748527f96512c8d
MD5 hash:
4f1c06343c57a5649acb09e5a6208468
SHA1 hash:
6144ffca2cc3fc94cd7a8fb5effa11364868a1b5
SH256 hash:
19efdf03cb94895935225795f68bb9abfded1869687367013b8b4eee3cc99372
MD5 hash:
4e29f75c0c51b9dec76955f0382d9541
SHA1 hash:
4899aa8e3f57339cbaec8faab777897a76fe1c3a
SH256 hash:
0b9e06fa1a4eb1844d88e03829b997ff1cf117f5877aa346629bd0961ca27358
MD5 hash:
d10c335c6b7ef7117e28e3d03553491d
SHA1 hash:
6914a403dbab16348f2e5bb7eb5d14cba0b9b354
SH256 hash:
14783f0fba68dca3ba8b66a77518e46ff779a099d1941e4c8e3070e84240c0b4
MD5 hash:
70b70f54cef58d41172364d421bcbef5
SHA1 hash:
81f26c942ffa7a3869cb3feec44f5282afeda7ba
SH256 hash:
755beb365bc7afd4e5c9ab0717b48bdbaf968bef7b1416b5cbc4681d8d711369
MD5 hash:
996538efe9ec468cb7984c77d296cf0e
SHA1 hash:
db3e184ad3613acf6d5a17542ab220f07bfd8cca
SH256 hash:
78f73e1734daa918b253517c75971fbb8df773a3d77d02a752e9a0ad1711a677
MD5 hash:
f9d2985aa1c41cca281321fffb5ed424
SHA1 hash:
3a7a58d2dcae2762882357ae34d372744b1dbb9d
SH256 hash:
ca562f10d81b76205c413d3612deb800644848a00c8080bbb3d356c203df472b
MD5 hash:
8a4fb295799619848cc42892f8e30838
SHA1 hash:
5590b2f8b2858426000d0237c5d7329abd6b7585
Detections:
win_404keylogger_g1
win_masslogger_w0
MAL_Envrial_Jan18_1
INDICATOR_SUSPICIOUS_Binary_References_Browsers
INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
MassLogger
Score:
1.00
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: | INDICATOR_EXE_Packed_SmartAssembly |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables packed with SmartAssembly |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | Sus_Obf_Enc_Spoof_Hide_PE |
|---|---|
| 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
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
| ID | Title | Severity |
|---|---|---|
| CHECK_AUTHENTICODE | Missing Authenticode | high |
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (GUARD_CF) | high |
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