MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 41e5f5f33f0bd2be4a1a518796838feae0a966320522f07dc04460c6a386dedc. 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: | 41e5f5f33f0bd2be4a1a518796838feae0a966320522f07dc04460c6a386dedc |
|---|---|
| SHA3-384 hash: | de669459d3cc22b6f8e89e1cd6a08398040d271addfbe1e2e2a2c9a6f415dc619fa1562dc9b308d7cf6961803e08ff2c |
| SHA1 hash: | b79a7bd962941a0430f01870be4ce73188f611ff |
| MD5 hash: | 8f1f7c7eff3d69a1be1a816cb3609840 |
| humanhash: | wyoming-winner-quiet-angel |
| File name: | kVqQhg9evpzeNYL.exe |
| Download: | download sample |
| Signature | MassLogger |
| File size: | 1'058'304 bytes |
| First seen: | 2020-12-05 15:25:31 UTC |
| Last seen: | 2020-12-05 16:41:54 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger) |
| ssdeep | 24576:f3h3BbOWnDoM/stnd97HEU2UGavuziflhudygkv/XoTCpF:J3xnDXsSSGUfedygkv/4Y |
| Threatray | 581 similar samples on MalwareBazaar |
| TLSH | 3935027222757A5DE97E0FF760E011440FB22C27956DE658BEB230CA31B3B50A951BB3 |
| Reporter |  abuse_ch |
| Tags: | exe HostGator MassLogger |
abuse_ch
Malspam distributing MassLogger:HELO: gateway23.websitewelcome.com
Sending IP: 192.185.49.218
From: Mr. Sales <info@bahraincontractors.net>
Subject: Attached T/T copy for payment.
Attachment: QWBN6438.rar (contains "kVqQhg9evpzeNYL.exe")
Intelligence
File Origin
# of uploads :
2
# of downloads :
387
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
41e5f5f33f0bd2be4a1a518796838feae0a966320522f07dc04460c6a386dedc
Verdict:
Malicious activity
Analysis date:
2020-12-05 19:23:17 UTC
Tags:
evasion
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
MassLogger
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
DNS request
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Result
Verdict:
SUSPICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
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 references suspicious native API functions
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Ymacco
Status:
Malicious
First seen:
2020-12-05 08:36:04 UTC
AV detection:
23 of 28 (82.14%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
masslogger
Similar samples:
+ 571 additional samples on MalwareBazaar
Result
Malware family:
masslogger
Score:
10/10
Tags:
family:masslogger spyware stealer
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Reads user/profile data of web browsers
MassLogger
MassLogger Main Payload
Unpacked files
SH256 hash:
4166124e61b6a17539832eae597ddd842d28a744ac47509b904eb7f1edc08cf9
MD5 hash:
3e920a197274f8eb5e75a66c0ddf9006
SHA1 hash:
194cbed38a9fe535fadd0dc760d839970e5cd9f9
SH256 hash:
c88a66cbf00b12c88e2b970b8bc220e970e8465e56098ced24e97d42be901b94
MD5 hash:
a60401dc02ff4f3250a749965097e13f
SHA1 hash:
3f22d28fd765f831084cb972a8bd071e421c26a1
SH256 hash:
682387233e36dad01e357234b6c4ab930c17d7d7add0fff1cd51e5a9e121332e
MD5 hash:
b2d0eaa1ae855ecd3f5c157da572ae10
SHA1 hash:
c8f77a2b59f4edbb915c760997dae69301a49daf
Detections:
win_masslogger_w0
SH256 hash:
41e5f5f33f0bd2be4a1a518796838feae0a966320522f07dc04460c6a386dedc
MD5 hash:
8f1f7c7eff3d69a1be1a816cb3609840
SHA1 hash:
b79a7bd962941a0430f01870be4ce73188f611ff
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
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: | Keylog_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | Contains Keylog |
| Rule name: | masslogger_gcch |
|---|---|
| Author: | govcert_ch |
| Rule name: | win_masslogger_w0 |
|---|---|
| Author: | govcert_ch |
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
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