MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 34247d28fcf043370191c1d262f69a4da9665736aa9a5de5ff03fa6a64c71b06. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 34247d28fcf043370191c1d262f69a4da9665736aa9a5de5ff03fa6a64c71b06
SHA3-384 hash: 6eae31639df74c538f018c8d85e1ebd81f154c541b50756b72ebe4f72f64b5ca496d4953f6b067ef29c500be1df66b44
SHA1 hash: a1c21fc04614a4564bb1eac97bdaa1f74cebf6dc
MD5 hash: 00bc7e616ac09b8d7bd89041a08b2480
humanhash: eleven-saturn-chicken-spring
File name:RFQ NO RO-OPS-2025-962.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:878'592 bytes
First seen:2025-04-15 06:59:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'739 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:J5a46qfYiAX5peKt71vGyKrc60hWNMAg9LIukO/6EOE/z:ziXNtR+yqvAyMAcI5OFOWz
Threatray 341 similar samples on MalwareBazaar
TLSH T1A315CF50312ABB16E0BA87F00561F07923B17E8E686AD32D5ED27DCF3535FC44A49A27
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 78f0e8ecf4e8e469 (4 x Formbook, 3 x MassLogger, 1 x AgentTesla)
Reporter lowmal3
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
1
# of downloads :
436
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
521a0767ce5cddad6e461d30cb507f188a05b6d6a2f760e9a51a774396093231
Verdict:
No threats detected
Analysis date:
2025-04-15 03:20:20 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/294ea811-9555-45eb-a4f5-87cd46ebc027

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/2250/
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67fdd073d6e7c3effad31e57
Tags:
micro spawn smtp
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Restart of the analyzed sample
Creating a file
Creating a process from a recently created file
Searching for synchronization primitives
DNS request
Connection attempt
Sending an HTTP GET request
Sending a custom TCP request
Reading critical registry keys
Unauthorized injection to a recently created process
Blocking the Windows Defender launch
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/67fe03fc90767142c3d4a6cd/reports/8247c7a5-2cb1-4bd0-b4b9-fdd35d760fcc/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/34247d28fcf043370191c1d262f69a4da9665736aa9a5de5ff03fa6a64c71b06
Malware family:
Snake Keylogger
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9eaa36cf-c938-41b3-ad32-2ba11f9377cf
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/1665097
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
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
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
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)
Uses schtasks.exe or at.exe to add and modify task schedules
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: 1665097 Sample: RFQ NO RO-OPS-2025-962.exe Startdate: 15/04/2025 Architecture: WINDOWS Score: 100 52 reallyfreegeoip.org 2->52 54 checkip.dyndns.org 2->54 56 checkip.dyndns.com 2->56 64 Found malware configuration 2->64 66 Malicious sample detected (through community Yara rule) 2->66 68 Sigma detected: Scheduled temp file as task from temp location 2->68 72 13 other signatures 2->72 8 RFQ NO RO-OPS-2025-962.exe 7 2->8         started        12 iUPvyZCtSyim.exe 2->12         started        signatures3 70 Tries to detect the country of the analysis system (by using the IP) 52->70 process4 file5 40 C:\Users\user\AppData\...\iUPvyZCtSyim.exe, PE32 8->40 dropped 42 C:\Users\...\iUPvyZCtSyim.exe:Zone.Identifier, ASCII 8->42 dropped 44 C:\Users\user\AppData\Local\...\tmp8934.tmp, XML 8->44 dropped 46 C:\Users\...\RFQ NO RO-OPS-2025-962.exe.log, ASCII 8->46 dropped 74 Adds a directory exclusion to Windows Defender 8->74 76 Injects a PE file into a foreign processes 8->76 14 RFQ NO RO-OPS-2025-962.exe 3 8->14         started        17 powershell.exe 23 8->17         started        20 schtasks.exe 1 8->20         started        78 Multi AV Scanner detection for dropped file 12->78 22 schtasks.exe 12->22         started        24 iUPvyZCtSyim.exe 12->24         started        signatures6 process7 file8 48 C:\Users\user\AppData\Local\Temp\newbin.exe, PE32 14->48 dropped 50 C:\Users\user\AppData\Local\Temp\brave.exe, PE32 14->50 dropped 26 brave.exe 14 2 14->26         started        30 newbin.exe 15 2 14->30         started        62 Loading BitLocker PowerShell Module 17->62 32 conhost.exe 17->32         started        34 WmiPrvSE.exe 17->34         started        36 conhost.exe 20->36         started        38 conhost.exe 22->38         started        signatures9 process10 dnsIp11 58 reallyfreegeoip.org 104.21.16.1, 443, 49689, 49690 CLOUDFLARENETUS United States 26->58 80 Multi AV Scanner detection for dropped file 26->80 82 Tries to steal Mail credentials (via file / registry access) 26->82 84 Tries to harvest and steal browser information (history, passwords, etc) 26->84 60 checkip.dyndns.com 132.226.8.169, 49687, 49688, 80 UTMEMUS United States 30->60 signatures12
Score:
97%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/34247d28fcf043370191c1d262f69a4da9665736aa9a5de5ff03fa6a64c71b06
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/34247d28fcf043370191c1d262f69a4da9665736aa9a5de5ff03fa6a64c71b06/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2025-04-15 03:20:21 UTC
File Type:
PE (.Net Exe)
Extracted files:
67
AV detection:
19 of 24 (79.17%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=gqsh2kh46bbtoamryhjgf5u2jwuwmvzwvknf3zp7ap5guzghdmda._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
novastealer
Create hunting rule
Similar samples:
078263b898d23617f9d122ed659a6262ec0e90f284e429af3d08ef6da5d31b47
MassLogger
34247d28fcf043370191c1d262f69a4da9665736aa9a5de5ff03fa6a64c71b06
MassLogger
5df98e3662abe46774af270097371676406feab3417f907aca7171079723f289
MassLogger
7ac2afbdd0bdfed4481c49171a5c4e814a3ad878b8887fa2594a011620e49b3d
MassLogger
a219e517e4f68db96fa6c7bf2d044b991043884cb1ac1dbd5de22ec5f08ddb00
MassLogger
ead9358ac4ae2ac44f312810c49410e20efc7244655ed5a71e9526efb450567f
MassLogger
error
MassLogger
+ 331 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
collection discovery evasion execution spyware stealer trojan
Link:
https://tria.ge/reports/250415-hsqzrazjz6/
Behaviour
Scheduled Task/Job: Scheduled Task
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
Executes dropped EXE
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Command and Scripting Interpreter: PowerShell
Modifies Windows Defender DisableAntiSpyware settings
Verdict:
Malicious
Tags:
404keylogger
YARA:
n/a
Link:
https://app.threat.zone/submission/af6bdcc9-a420-4b48-bfd6-426131e7580d
Unpacked files
SH256 hash:
34247d28fcf043370191c1d262f69a4da9665736aa9a5de5ff03fa6a64c71b06
MD5 hash:
00bc7e616ac09b8d7bd89041a08b2480
SHA1 hash:
a1c21fc04614a4564bb1eac97bdaa1f74cebf6dc
Link:
https://www.unpac.me/results/4568d0a5-0a47-480a-af8c-a48c216cdcde/
SH256 hash:
e78037727fe97108a183b3cfe10f36749270a16810d8a29c8fb227dee0988cd8
MD5 hash:
8453eaedaed5279cf8e6efc97b878a4b
SHA1 hash:
0e7853076ffb1ff5dd87d75259f9e4be96327763
Link:
https://www.unpac.me/results/4568d0a5-0a47-480a-af8c-a48c216cdcde/
SH256 hash:
1b7f55de83b97ce1dbedee88c9457ccf265e295ee5acad2201c029bc98a5e0d8
MD5 hash:
1383cc4f54abf582182c0d3225b819d5
SHA1 hash:
1c6cd699bd2fe5cdf5f696f2211c80d0445a9aec
Detections:
win_404keylogger_g1
Create hunting rule
win_masslogger_w0
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
INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender
Create hunting rule
Link:
https://www.unpac.me/results/4568d0a5-0a47-480a-af8c-a48c216cdcde/
Parent samples :
34f9dca793875270451869765911d27c3025c7df0823dd1cc1b4b0f2028a722a
e6a379ed6367dccc3081719bb235483f1200de8668a8d5d68beafb08856e71ba
7ac2afbdd0bdfed4481c49171a5c4e814a3ad878b8887fa2594a011620e49b3d
34247d28fcf043370191c1d262f69a4da9665736aa9a5de5ff03fa6a64c71b06
SH256 hash:
f04fccc9021c042fb00b0332486f32f2c9779ac30446ad2e05aee6452c764b09
MD5 hash:
66ee6d5e2c0402ad2eff7723321753ac
SHA1 hash:
3f5c5b141a20429d1611cfb5344909e9c0849855
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/4568d0a5-0a47-480a-af8c-a48c216cdcde/
SH256 hash:
65f567012665c14362b89c5b7eb8ef2537085b4a2ed073f048304ce2e0e108da
MD5 hash:
e0609abeff8a8186c7286f71079587a8
SHA1 hash:
8725e3ebe1cb162e4f8a05f592c0348dd5027c4b
Detections:
win_404keylogger_g1
Create hunting rule
win_masslogger_w0
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
INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender
Create hunting rule
Link:
https://www.unpac.me/results/4568d0a5-0a47-480a-af8c-a48c216cdcde/
Parent samples :
34f9dca793875270451869765911d27c3025c7df0823dd1cc1b4b0f2028a722a
e6a379ed6367dccc3081719bb235483f1200de8668a8d5d68beafb08856e71ba
7ac2afbdd0bdfed4481c49171a5c4e814a3ad878b8887fa2594a011620e49b3d
34247d28fcf043370191c1d262f69a4da9665736aa9a5de5ff03fa6a64c71b06
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/34247d28fcf043370191c1d262f69a4da9665736aa9a5de5ff03fa6a64c71b06

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: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: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 34247d28fcf043370191c1d262f69a4da9665736aa9a5de5ff03fa6a64c71b06

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/2250/

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