MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a54edb5286da2f7d125bb76415b6ec70af6133d8a1ed1f72b060bad69741e661. 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: 15


Intelligence 15 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a54edb5286da2f7d125bb76415b6ec70af6133d8a1ed1f72b060bad69741e661
SHA3-384 hash: 7bab7b951fe12d4a2bac94238e8f54488d40a968cba4574c1c653cc37204c9d6c0b7e446740f0b35337812e5098382f4
SHA1 hash: 74d6be70f6f01634021e55dd29f646feafd2caff
MD5 hash: 021e76593df805df74e44d2d84c7492e
humanhash: juliet-orange-alpha-victor
File name:Auto_Parts_Quotation.pdf.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:560'648 bytes
First seen:2025-04-03 21:16:25 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:moVguFEJnElK6Y5uGT3XMVi3k3fNkXW8VHth3kR:9vK6Y5uEnGMQNkm8VHto
Threatray 502 similar samples on MalwareBazaar
TLSH T111C4125EBF28FF66D21C0B33C8A3520D85B2D217E9B1E41B2DF699D12D65384CA0BD46
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 00100072b0001000 (5 x SnakeKeylogger, 3 x MassLogger, 2 x Formbook)
Reporter TeamDreier
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
1
# of downloads :
1'287
Origin country :
DK DK
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/394/
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67eefc66cfd0a37f830d7183
Tags:
underscore obfuscator micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
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
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
expired-cert invalid-signature masquerade obfuscated obfuscated packed packed packer_detected signed vbnet
Link:
https://www.filescan.io/uploads/67eefae02d430c849e059173/reports/eea2001c-2ab6-43c6-85b0-3bdd49ee7dd8/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/a54edb5286da2f7d125bb76415b6ec70af6133d8a1ed1f72b060bad69741e661
Malware family:
Snake Keylogger
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e68bd73b-0919-459e-8eec-a3727a3e65f2
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/1656092
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
.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
Sigma detected: Suspicious Double Extension File Execution
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 an obfuscated file name to hide its real file extension (double extension)
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: 1656092 Sample: Auto_Parts_Quotation.pdf.exe Startdate: 03/04/2025 Architecture: WINDOWS Score: 100 49 reallyfreegeoip.org 2->49 51 checkip.dyndns.org 2->51 53 checkip.dyndns.com 2->53 67 Found malware configuration 2->67 69 Malicious sample detected (through community Yara rule) 2->69 71 Sigma detected: Scheduled temp file as task from temp location 2->71 75 14 other signatures 2->75 8 Auto_Parts_Quotation.pdf.exe 7 2->8         started        12 GWFumKbG.exe 5 2->12         started        14 svchost.exe 2->14         started        signatures3 73 Tries to detect the country of the analysis system (by using the IP) 49->73 process4 dnsIp5 41 C:\Users\user\AppData\RoamingbehaviorgraphWFumKbG.exe, PE32 8->41 dropped 43 C:\Users\...behaviorgraphWFumKbG.exe:Zone.Identifier, ASCII 8->43 dropped 45 C:\Users\user\AppData\Local\Temp\tmpEF1.tmp, XML 8->45 dropped 47 C:\Users\...\Auto_Parts_Quotation.pdf.exe.log, ASCII 8->47 dropped 77 Uses schtasks.exe or at.exe to add and modify task schedules 8->77 79 Adds a directory exclusion to Windows Defender 8->79 81 Injects a PE file into a foreign processes 8->81 17 powershell.exe 23 8->17         started        20 powershell.exe 23 8->20         started        22 Auto_Parts_Quotation.pdf.exe 15 2 8->22         started        25 schtasks.exe 1 8->25         started        83 Multi AV Scanner detection for dropped file 12->83 27 GWFumKbG.exe 12->27         started        29 schtasks.exe 12->29         started        59 127.0.0.1 unknown unknown 14->59 file6 signatures7 process8 dnsIp9 61 Loading BitLocker PowerShell Module 17->61 31 conhost.exe 17->31         started        33 WmiPrvSE.exe 17->33         started        35 conhost.exe 20->35         started        55 checkip.dyndns.com 193.122.130.0, 49702, 49704, 80 ORACLE-BMC-31898US United States 22->55 57 reallyfreegeoip.org 104.21.16.1, 443, 49703, 49707 CLOUDFLARENETUS United States 22->57 37 conhost.exe 25->37         started        63 Tries to steal Mail credentials (via file / registry access) 27->63 65 Tries to harvest and steal browser information (history, passwords, etc) 27->65 39 conhost.exe 29->39         started        signatures10 process11
Score:
93%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a54edb5286da2f7d125bb76415b6ec70af6133d8a1ed1f72b060bad69741e661
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a54edb5286da2f7d125bb76415b6ec70af6133d8a1ed1f72b060bad69741e661/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2025-04-02 07:23:38 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
24 of 36 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uvhnwuug3ixx2es3w5sblnxmocxwcm6yuhwr64vqmc5nnf2b4zqq._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
novastealer
Create hunting rule
Similar samples:
1cff9edb8c251f6867f1df4dbc8c47c98271a47c8feae9e867f362b59b6c43cb
MassLogger
470b09e386f5cd8befb4796af1aec03895b755d4219d6b9fc14e41ae5a400e23
MassLogger
8432a87c1daeb7a4a13a6bee0ab55d5c96919b2d29dfddc5682f9289023a5ed6
MassLogger
c5f3533849c988dc9812857c7a8e6359d82cf650955eec6d14661426e62bbde1
MassLogger
error
MassLogger
fef84d37b7a6401d86e58cbae5066ea24fa9e16fa44139db1d5c4c0a9df0bf2a
MassLogger
+ 492 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
collection discovery execution spyware stealer
Link:
https://tria.ge/reports/250403-z46ysawrw5/
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
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/8344a986-c3c4-4e42-8dd9-9c4eb60cdef5
Unpacked files
SH256 hash:
a54edb5286da2f7d125bb76415b6ec70af6133d8a1ed1f72b060bad69741e661
MD5 hash:
021e76593df805df74e44d2d84c7492e
SHA1 hash:
74d6be70f6f01634021e55dd29f646feafd2caff
Link:
https://www.unpac.me/results/6a3927f7-2b54-4e38-9535-566f8a00a888/
SH256 hash:
7a4b6de43c26a3630c18c77348e74d060750858132c689a509acc1d0463aa857
MD5 hash:
239fb78075c9a7649f56a70d6d4878a4
SHA1 hash:
7ab3b712f804ea4401e71154b2728fc2cc44a794
Link:
https://www.unpac.me/results/6a3927f7-2b54-4e38-9535-566f8a00a888/
SH256 hash:
ee5221df960dc6abd70110f37f820e41c7ba961f4eb6d29943c1cb5f3b47e6e4
MD5 hash:
f4dd1fb7d8307ed62ecfd18b8f5f9f46
SHA1 hash:
826f998a837f78b42e5fe235019b2d0417459228
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/6a3927f7-2b54-4e38-9535-566f8a00a888/
SH256 hash:
32c736c1895320ac32850db6c56e9036ce92eca72c5a152f06d60a37bf8b524d
MD5 hash:
0d160a001e319e5b37fd649efb6b41be
SHA1 hash:
b870b9272ee8bf4a6f331c44626dbf879802ca7a
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
Link:
https://www.unpac.me/results/6a3927f7-2b54-4e38-9535-566f8a00a888/
Parent samples :
e45ddc303aa4c0a7a0fd343d8620a299dbcf0ef799d98f92b3d2673f554a49fd
1cff9edb8c251f6867f1df4dbc8c47c98271a47c8feae9e867f362b59b6c43cb
a54edb5286da2f7d125bb76415b6ec70af6133d8a1ed1f72b060bad69741e661
cb353d92f5e09eea2c1bc96152134611c03525ce9aeef7fc5582cd5594c50be3
a05882d8e179d3a1a3ac69ce4b81bc72ee80f026d921e2598a5eddefd803511b
b8c36a5b681b071cc8c8a34fa1d1656b705dbe1f433706b386b78fd73ef6e884
16710103bbae3fbc560ef36459df90649918b2b33ec96d0a277d10ea31f81fcf
Malware family:
PrivateLogger
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a54edb5286da/report/overview.html
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/a54edb5286da2f7d125bb76415b6ec70af6133d8a1ed1f72b060bad69741e661

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 a54edb5286da2f7d125bb76415b6ec70af6133d8a1ed1f72b060bad69741e661

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/394/

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