MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d1bd52996d15f124682fc7c59f4a70d7b54f5a89919f8de36f09fe0efc51eb5c. 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: 14


Intelligence 14 IOCs YARA 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d1bd52996d15f124682fc7c59f4a70d7b54f5a89919f8de36f09fe0efc51eb5c
SHA3-384 hash: 81a1e94aec6c27245ece81b3cf85bc2476e3c6c8c27dca3e3db117e0a9aa07aa54058d0bcae271b639ea41b069315b2a
SHA1 hash: 65b50de4cb1b0b84bd695dcc4f610539c408f232
MD5 hash: 7d22c8a8f575f25da6df69ac3314a068
humanhash: artist-earth-floor-mirror
File name:VSL Q88.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'082'368 bytes
First seen:2025-01-28 08:44:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'619 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:QdUIwEk7unHjJW3PnbCbtu2eNelc9hBnJKVgFOLXWhP4l1rN:TVxuHjUPnboHeNelsTnJKiFOawr
Threatray 4'636 similar samples on MalwareBazaar
TLSH T1AD35330D6FA8F515CA1EB2B017935EC403EC63FD3859A02B6B1A2DDDAB639DCC071949
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 threatcat_ch
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
1
# of downloads :
506
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
VSLQ88.exe
Verdict:
Malicious activity
Analysis date:
2025-01-28 08:50:58 UTC
Tags:
evasion snake keylogger stealer ims-api generic
Link:
https://app.any.run/tasks/31ca71bd-89f7-48c8-a8ae-e60fafe96460

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.CrypterX-gen.21529.17438.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
91.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67989a7139cd5095f12a3768
Tags:
autorun virus micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %AppData% directory
Launching a process
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:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/679899100a04287e8b0399d1/reports/56034f30-dfca-42e1-a73e-1ca197754897/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/d1bd52996d15f124682fc7c59f4a70d7b54f5a89919f8de36f09fe0efc51eb5c
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/726c773c-95c5-4d71-8f5e-d1f972066255
Result
Threat name:
MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1601063
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Drops VBS files to the startup folder
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
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: 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)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected MassLogger RAT
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1601063 Sample: VSL Q88.exe Startdate: 28/01/2025 Architecture: WINDOWS Score: 100 33 reallyfreegeoip.org 2->33 35 checkip.dyndns.org 2->35 37 checkip.dyndns.com 2->37 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Antivirus / Scanner detection for submitted sample 2->43 47 11 other signatures 2->47 8 wscript.exe 1 2->8         started        11 VSL Q88.exe 5 2->11         started        signatures3 45 Tries to detect the country of the analysis system (by using the IP) 33->45 process4 file5 53 Windows Scripting host queries suspicious COM object (likely to drop second stage) 8->53 14 DefaultGrantSet.exe 2 8->14         started        23 C:\Users\user\AppData\...\DefaultGrantSet.exe, PE32 11->23 dropped 25 C:\Users\user\AppData\...\DefaultGrantSet.vbs, ASCII 11->25 dropped 27 C:\...\DefaultGrantSet.exe:Zone.Identifier, ASCII 11->27 dropped 55 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 11->55 57 Writes to foreign memory regions 11->57 59 Injects a PE file into a foreign processes 11->59 17 InstallUtil.exe 15 2 11->17         started        signatures6 process7 dnsIp8 61 Antivirus detection for dropped file 14->61 63 Multi AV Scanner detection for dropped file 14->63 65 Machine Learning detection for dropped file 14->65 69 2 other signatures 14->69 20 InstallUtil.exe 2 14->20         started        29 checkip.dyndns.com 132.226.8.169, 49709, 49764, 80 UTMEMUS United States 17->29 31 reallyfreegeoip.org 104.21.16.1, 443, 49711, 49775 CLOUDFLARENETUS United States 17->31 67 Tries to steal Mail credentials (via file / registry access) 17->67 signatures9 process10 signatures11 49 Tries to steal Mail credentials (via file / registry access) 20->49 51 Tries to harvest and steal browser information (history, passwords, etc) 20->51
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/d1bd52996d15f124682fc7c59f4a70d7b54f5a89919f8de36f09fe0efc51eb5c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d1bd52996d15f124682fc7c59f4a70d7b54f5a89919f8de36f09fe0efc51eb5c/
Threat name:
ByteCode-MSIL.Trojan.Znyonm
Create hunting rule
Status:
Malicious
First seen:
2025-01-28 08:45:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2g6vfglncxysi2bpy7cz6stq262u6wujsgpy3y3pbh7a57cr5noa._file
Verdict:
malicious
Label(s):
snakekeylogger
Create hunting rule
Similar samples:
50012d6f8e95f51fd2859d308a17b29a337805a11ec2d7e70baf53ae9665cf8b
MassLogger
b2059d59922556f2677361a44d5b1c0a4422654e1f8e1af8f311771c4cf818d2
MassLogger
bb5ffa744f85e8c00110008da647ab5a10aef58d50e927f70e78f02e2ac105de
MassLogger
bedb516c0bbfe25e36c26f81d37be534ab096c087fc4e866fb20bf68cf4b9123
MassLogger
d1bd52996d15f124682fc7c59f4a70d7b54f5a89919f8de36f09fe0efc51eb5c
MassLogger
e99a8a8773f059814fdcd835c6c7a8ae5284c4943987a374a96e14a8b799335d
MassLogger
error
MassLogger
f34ab3c978462c0d763304689c493c9ebb1da5fc6a5aeac13c1a81cb5080a9e6
MassLogger
+ 4'626 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
collection discovery
Link:
https://tria.ge/reports/250128-knp8rstkgt/
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/d86dfa9e-741c-49d1-aaa3-37443649e0da
Unpacked files
SH256 hash:
b8549170f4fe9199a403c15683c2fe8cc6fa5920525ec7a984fcb3ab4b366725
MD5 hash:
131fff0745c557e0920c2503b81d7e21
SHA1 hash:
b9f5d80878578ee7579858f26300dd418e794051
Link:
https://www.unpac.me/results/65d747be-d5d2-45ad-b948-dafcefb15123/
SH256 hash:
1bce833aef1c86062ef31d1928c48e80257720ebcc3d6716075d0a81faa83aeb
MD5 hash:
6eb908386ed7dec8100e6b4a2d275985
SHA1 hash:
88fe0238a43d8b669d5fc49c3c74fa0994380bc3
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/65d747be-d5d2-45ad-b948-dafcefb15123/
SH256 hash:
78f73e1734daa918b253517c75971fbb8df773a3d77d02a752e9a0ad1711a677
MD5 hash:
f9d2985aa1c41cca281321fffb5ed424
SHA1 hash:
3a7a58d2dcae2762882357ae34d372744b1dbb9d
Link:
https://www.unpac.me/results/65d747be-d5d2-45ad-b948-dafcefb15123/
SH256 hash:
9a9ade8499b3b25db7c6ae3e72eb7ec9462c222cbe502c2b05e14b18bbb9575d
MD5 hash:
cfb1b388da0a4940cf6d1130554fa84f
SHA1 hash:
1c1b3ce18a1960b18886af377a3e04c84400ef0f
Link:
https://www.unpac.me/results/65d747be-d5d2-45ad-b948-dafcefb15123/
SH256 hash:
d0ad4ba48c0f144a57774f15f683734c3aef3b18ecb1d907f25bbbd80e9feae2
MD5 hash:
c0e07aeaca6369bf8481a179adb6d577
SHA1 hash:
1eca66f29a5d6e229b4819e9a61ff71f2cec9364
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/65d747be-d5d2-45ad-b948-dafcefb15123/
SH256 hash:
d1bd52996d15f124682fc7c59f4a70d7b54f5a89919f8de36f09fe0efc51eb5c
MD5 hash:
7d22c8a8f575f25da6df69ac3314a068
SHA1 hash:
65b50de4cb1b0b84bd695dcc4f610539c408f232
Link:
https://www.unpac.me/results/65d747be-d5d2-45ad-b948-dafcefb15123/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/d1bd52996d15/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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 d1bd52996d15f124682fc7c59f4a70d7b54f5a89919f8de36f09fe0efc51eb5c

(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