MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 fbb23eda9bc927cc72810831dde3e28ef4baffddc7f28ee016c1e6ccc133a275. 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
| SHA256 hash: | fbb23eda9bc927cc72810831dde3e28ef4baffddc7f28ee016c1e6ccc133a275 |
|---|---|
| SHA3-384 hash: | 34885073bf463d16287acceb5e927ca4d0ab583c638c3c3a4552f035dfde29f8529ef2c9dfd226f3c2677c69105d6f05 |
| SHA1 hash: | 9fa5eaa6b7f002ca2e7b776564087082399eb842 |
| MD5 hash: | 1c08f52f9560cf0b1cdce37643e548f3 |
| humanhash: | berlin-neptune-earth-table |
| File name: | Original Documents 091822.exe |
| Download: | download sample |
| Signature | MassLogger |
| File size: | 610'312 bytes |
| First seen: | 2025-03-05 14:09:07 UTC |
| Last seen: | 2025-03-05 14:38:35 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger) |
| ssdeep | 12288:Ox15Mpm+gvy04Jcd6+fIRyUdv5EJ6V3uKCIYXlQKtqz3kR:m15LXycdBf6v2J6V3NCIOlQi |
| Threatray | 4'329 similar samples on MalwareBazaar |
| TLSH | T187D4E0A426A8EB13D6799BF41932E13413FA3DE97811D2165FE9ACDFB8B2F001D50253 |
| 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 |  James_inthe_box |
| Tags: | exe MassLogger |
Intelligence
File Origin
# of uploads :
2
# of downloads :
528
Origin country :
USVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
OriginalDocuments091822.exe
Verdict:
Malicious activity
Analysis date:
2025-03-05 14:15:18 UTC
Tags:
evasion snake keylogger stealer
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
92.5%
Tags:
injection shell 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
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Result
Verdict:
UNKNOWN
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:
Agent Tesla
Verdict:
Malicious
Result
Threat name:
MSIL Logger, MassLogger RAT
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
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 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:
Score:
99%
Verdict:
Malware
File Type:
PE
Threat name:
Win32.Packed.Generic
Status:
Suspicious
First seen:
2025-03-05 13:34:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
21 of 24 (87.50%)
Threat level:
1/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
novastealer
unc_loader_037
Similar samples:
+ 4'319 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
10/10
Tags:
collection discovery evasion execution spyware stealer trojan
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
Modifies Windows Defender DisableAntiSpyware settings
Verdict:
Malicious
Tags:
404keylogger
YARA:
n/a
Unpacked files
SH256 hash:
fbb23eda9bc927cc72810831dde3e28ef4baffddc7f28ee016c1e6ccc133a275
MD5 hash:
1c08f52f9560cf0b1cdce37643e548f3
SHA1 hash:
9fa5eaa6b7f002ca2e7b776564087082399eb842
SH256 hash:
730f853c568e16f55df4aeb381625bf87006b36bb273bf7a573d272c9ed67ffb
MD5 hash:
aa6127961d72f01ad6ab08523593e0d8
SHA1 hash:
7f9f068109b872d73711e8d426d6c7b184190003
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
daf4f1d48b812a6e017f0f9f45ead57ac066e403f4ac7c0dfecae43d7d7e9b6f
MD5 hash:
c44baa611dd19524e27351a2a57b1fc6
SHA1 hash:
96a412c2d9bca5807f356340c67c146055fbe781
SH256 hash:
0e7e244a17a489a6ba34d8ce48014f171cb9c95ccd253c78af471ba1de75045c
MD5 hash:
6f3e53dfcdbae164d03ea8c5add9d3ee
SHA1 hash:
a496025d1cb1e8b021093374fa0331b98cbf9d95
Detections:
win_404keylogger_g1
win_masslogger_w0
MAL_Envrial_Jan18_1
INDICATOR_SUSPICIOUS_Binary_References_Browsers
INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | AgentTesla_DIFF_Common_Strings_01 |
|---|---|
| Author: | schmidtsz |
| Description: | Identify partial Agent Tesla strings |
| Rule name: | INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438 |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables signed with stolen, revoked or invalid certificates |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | NETexecutableMicrosoft |
|---|---|
| Author: | malware-lu |
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | Sus_Obf_Enc_Spoof_Hide_PE |
|---|---|
| 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
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
| ID | Title | Severity |
|---|---|---|
| CHECK_AUTHENTICODE | Missing Authenticode | high |
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (HIGH_ENTROPY_VA) | high |
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