MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4bd5d8dbd871399e808370b9ec7adadc46a28ee4af8a48478b69c391f3236637. 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: 16


Intelligence 16 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4bd5d8dbd871399e808370b9ec7adadc46a28ee4af8a48478b69c391f3236637
SHA3-384 hash: e084dcec580f6efac3f28f370cc379c7f2659e9cbbd2e4e1b0ffe0ad8fff88d86dad3e2b1b8562b9626762a8a4b0d7ff
SHA1 hash: bdcc0a6d4819e9a05213e562cd55dbf46246f745
MD5 hash: 7108f9acfa58d435e6478f1bd4ea9004
humanhash: moon-harry-one-delaware
File name:INV_20252701_593059520986672009866765565785323.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:511'496 bytes
First seen:2025-03-10 07:32:13 UTC
Last seen:2025-03-10 09:56:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'610 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:BfOWRXJ+ouPO2kbOaCgdpSvZhRlYFtluvmNkR:Au5+ouPZqOaCrRl5
TLSH T124B41294B688E491CFD24B700D75E23683359F2DE422D7938DEDFCE738913642429B9A
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
dhash icon 72ceaeaeb2968ea8 (5 x RemcosRAT, 4 x MassLogger, 3 x PureLogsStealer)
Reporter lowmal3
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
3
# of downloads :
410
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
INV_20252701_593059520986672009866765565785323.exe
Verdict:
Malicious activity
Analysis date:
2025-03-10 07:35:40 UTC
Tags:
evasion snake keylogger stealer
Link:
https://app.any.run/tasks/cb24019e-e15f-40af-aff8-6556ee5a57c8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67ce9c960d1b39e3a208a6e5
Tags:
shell virus micro
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
DNS request
Connection attempt
Sending an HTTP GET request
Sending a custom TCP request
Reading critical registry keys
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
invalid-signature obfuscated packed packed packer_detected signed vbnet
Link:
https://www.filescan.io/uploads/67ce95b74a3011c802cbeba9/reports/d4e6d988-ad2d-42a2-a588-dad7c8864f9e/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/4bd5d8dbd871399e808370b9ec7adadc46a28ee4af8a48478b69c391f3236637
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.
Malware family:
Snake Keylogger
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/bd1d70f8-ad3a-443e-a89c-39f936adc858
Result
Threat name:
MSIL Logger, MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1633320
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
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 AntiVM3
Yara detected MassLogger RAT
Yara detected MSIL Logger
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1633320 Sample: INV_20252701_59305952098667... Startdate: 10/03/2025 Architecture: WINDOWS Score: 100 29 reallyfreegeoip.org 2->29 31 checkip.dyndns.org 2->31 33 checkip.dyndns.com 2->33 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Multi AV Scanner detection for submitted file 2->51 55 9 other signatures 2->55 8 INV_20252701_593059520986672009866765565785323.exe 4 2->8         started        12 svchost.exe 1 1 2->12         started        signatures3 53 Tries to detect the country of the analysis system (by using the IP) 29->53 process4 dnsIp5 27 INV_20252701_59305...65565785323.exe.log, ASCII 8->27 dropped 57 Adds a directory exclusion to Windows Defender 8->57 15 INV_20252701_593059520986672009866765565785323.exe 15 2 8->15         started        19 powershell.exe 22 8->19         started        21 INV_20252701_593059520986672009866765565785323.exe 8->21         started        35 127.0.0.1 unknown unknown 12->35 file6 signatures7 process8 dnsIp9 37 checkip.dyndns.com 132.226.8.169, 49685, 80 UTMEMUS United States 15->37 39 reallyfreegeoip.org 104.21.32.1, 443, 49686 CLOUDFLARENETUS United States 15->39 41 Tries to steal Mail credentials (via file / registry access) 15->41 43 Tries to harvest and steal browser information (history, passwords, etc) 15->43 45 Loading BitLocker PowerShell Module 19->45 23 WmiPrvSE.exe 19->23         started        25 conhost.exe 19->25         started        signatures10 process11
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4bd5d8dbd871399e808370b9ec7adadc46a28ee4af8a48478b69c391f3236637
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4bd5d8dbd871399e808370b9ec7adadc46a28ee4af8a48478b69c391f3236637/
Threat name:
Win32.Trojan.CrypterX
Create hunting rule
Status:
Malicious
First seen:
2025-03-10 04:58:39 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
26 of 38 (68.42%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jpk5rw6yoe4z5aedoc46y6w23rdkfdxev6feqr4lnhbzd4zdmy3q._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
novastealer
Create hunting rule
Similar samples:
error
MassLogger
Result
Malware family:
n/a
Score:
  8/10
Tags:
collection discovery execution spyware stealer
Link:
https://tria.ge/reports/250310-jdlbdsxvbz/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Checks computer location settings
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Command and Scripting Interpreter: PowerShell
Verdict:
Malicious
Tags:
404keylogger
YARA:
n/a
Link:
https://app.threat.zone/submission/6aff7c47-e786-429c-901f-5f961da04999
Unpacked files
SH256 hash:
4bd5d8dbd871399e808370b9ec7adadc46a28ee4af8a48478b69c391f3236637
MD5 hash:
7108f9acfa58d435e6478f1bd4ea9004
SHA1 hash:
bdcc0a6d4819e9a05213e562cd55dbf46246f745
Link:
https://www.unpac.me/results/576e7c70-0319-4d96-9d6d-958b22906952/
SH256 hash:
1ae70e9920316346f39648486fe46b70ea00f90b9595cfc0a78958cee45b9224
MD5 hash:
f0884d03aca538d5f2b208d9aaf7874c
SHA1 hash:
132212e8a27c756ae62d926f6b62c91e226e768a
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/576e7c70-0319-4d96-9d6d-958b22906952/
Parent samples :
22d92af6c8a273dc5a9e69e37ccfb5ffe6e7d7f0c7a46ee6b9f7e5cb34402128
4b21d54c412f87e8780f0f50392e66e37b5e09c6c53dd955351e6c87c5edebb8
566100e8280a66cd7a4a6bb2befb399f9c0bedb1206a34103f34d9572ffb5121
c33d06421b59dff8c714160ebc13a76508efdf7df8deec91d77cba760d28257f
d8df7d976d130dcbcd58aaf4c908e42a1e1762c5169cefdbafc2faf87dbf2441
123be687d8f6715d99d4938b20d6e75415197fc6ed50af0e472d13a56fff75fa
4bd5d8dbd871399e808370b9ec7adadc46a28ee4af8a48478b69c391f3236637
1957409295eb6545e767c0f0877fbe7816c63d4c14e5bee3c0465f0c188f9434
3d2d4932b38d1e1d37482e994eba2c33927a90e9452ee52c06b5049cfa96fb58
c68fd2199806868970ba64af5626f4004bd075441b3f8a902153570950689dd1
7c255e1da5023e24d8932926c2bef9335a210eae149d1e5236c92c9b5c89e9bc
810e347b05bec3d24178a9f5330d73d85b67f28c6e5e7d82c254743619dd0d0c
3c65a0c225639d6d04e845f224c754fc393f554eedbc5feb4a3b1b9ca3728c34
794bf10b1774238552364c1395d558a69361f2eec1727fd41f36caefed3aa546
211ea7b9db1647569432f81b6b4eba2664d98abb1a2bbf9adba6ce545868c5bd
f529e6efd5225df558fcde232bcc3ebd0fababcf80c44b200fb847e2448d5e1f
a003b17d8065d71e25b3c612567713e67c54db3dd339e0e4a2e0aa5ffc836094
7fd19fb3bc8558dba218a1877438cbccb2412baf3e50918b9f2d808591c27280
b603a586ea389d7ce6ea8b3ae24eb08bbe6c020e341ee32845c6edf868aa9bbd
52eb6516d6851a1f228abaa42737d19bb97d2aa8f62d92f81f501dd43eb14d1a
e1a0b0280374abcbbd243e3d9b749b9e976354ed259076e238c45cf821e1e35b
e43126516cb07aed914aae46c6619db608a984d878ac57d515e8cfd85e696ad3
c991a3ee832bc707306f68c46786afc17de14163f8d3c757516bac9953ad6f3b
7fc21521b3e61d0555c0c1adb947d9724c8ca61dc9caeef85a110ec46d3b2d5d
3db3650ffeffab84a845715ea1018b331e0fd8bdd619b7cab1d1553074aa31d1
SH256 hash:
f6bcdbd13b5b747af4e9a0fd4e7667f0de56aa9d12ee1d76d28eb047ef4bc147
MD5 hash:
e0d6463999975ac20ec1ce197ca67888
SHA1 hash:
2e0a5494001a08f6958fb08fc66a6a26bc13bd3c
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/576e7c70-0319-4d96-9d6d-958b22906952/
Parent samples :
4bd5d8dbd871399e808370b9ec7adadc46a28ee4af8a48478b69c391f3236637
b74ffc3b3d45094970d071d5af22cb7b8ebe5a67bc23347dd61f7ecafa2b9f85
0c41a305e80960e4c7c2c890fd707429091d3bb87d5726ed7c13373d626e85cd
SH256 hash:
49485803a5f2e079fcee1caed12663e0c109475d6c7f5b040c761fa11b9908df
MD5 hash:
c69bccdd309ee4d12cef432f56e08419
SHA1 hash:
e31be6a137232b0f2345f227dd1d62bf51673d9d
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/576e7c70-0319-4d96-9d6d-958b22906952/
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/4bd5d8dbd871399e808370b9ec7adadc46a28ee4af8a48478b69c391f3236637

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_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
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)

File information

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

Malspam

MassLogger

Executable exe 4bd5d8dbd871399e808370b9ec7adadc46a28ee4af8a48478b69c391f3236637

(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