MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b40a76ca3b6098ed3e3c862442012dded937ee4c987d6fcb3e955bcbf36089da. 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
Formbook
Vendor detections: 12
| SHA256 hash: | b40a76ca3b6098ed3e3c862442012dded937ee4c987d6fcb3e955bcbf36089da |
|---|---|
| SHA3-384 hash: | f31e6e19fcb6f211a3be818a23cee6c9a494e3824e908b7b6a744f9242d388834d5f30dcfc54fcc3e894dd4afb13c025 |
| SHA1 hash: | 7926a4ed4776d29efc7bd0246790e0ac37cf94ec |
| MD5 hash: | 6e50d99a87832e28f61088eb38c5c69d |
| humanhash: | connecticut-bacon-august-xray |
| File name: | PO OAU_APRQTRFA00541úPDF.scr |
| Download: | download sample |
| Signature | Formbook |
| File size: | 2'486'784 bytes |
| First seen: | 2024-04-02 18:30:47 UTC |
| Last seen: | 2024-04-02 19:32:59 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger) |
| ssdeep | 49152:bW2HTozbt5c1WuYAvNVFUSazGy5QbjW1gXp0sA6YM:bLHMzbt5ckuYcFnazFMWUY6Y |
| Threatray | 2'705 similar samples on MalwareBazaar |
| TLSH | T18AB51217F65744B2DF85377AC6DE65049BA0C580A28BDB8A388F53EA7C437BA9C41703 |
| TrID | 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10523/12/4) 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) |
| Reporter |  abuse_ch |
| Tags: | exe FormBook scr |
Intelligence
File Origin
# of uploads :
2
# of downloads :
374
Origin country :
NLVendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
b40a76ca3b6098ed3e3c862442012dded937ee4c987d6fcb3e955bcbf36089da.exe
Verdict:
Malicious activity
Analysis date:
2024-04-02 18:36:41 UTC
Tags:
evasion agenttesla stealer
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Clean
Maliciousness:
Behaviour
Searching for the window
Creating a file
Creating a window
Launching a process
Moving a file to the Program Files subdirectory
Replacing files
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
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
Result
Threat name:
AgentTesla, PureLog Stealer
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected Generic Downloader
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Threat name:
Win32.Spyware.Negasteal
Status:
Malicious
First seen:
2024-04-02 10:55:38 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
24 of 37 (64.86%)
Threat level:
2/5
Detection(s):
Malicious file
Verdict:
malicious
Similar samples:
+ 2'695 additional samples on MalwareBazaar
Result
Malware family:
zgrat
Score:
10/10
Tags:
family:agenttesla family:zgrat keylogger rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Looks up external IP address via web service
AgentTesla
Detect ZGRat V1
ZGRat
Unpacked files
SH256 hash:
894c3efccf77e0b858490d1f2cc94d62f6938815c0b6b81a17f0803e66bc78b1
MD5 hash:
cea948932ac0b7381bd9ead44f85b985
SHA1 hash:
fdddeeccb146c3e9f3c67e37139413c88b5cd713
SH256 hash:
91fcac26b0fdc90327cb19c98e744680983f41ba2ee42313c5d0dc4eb341f5c9
MD5 hash:
b385c02724fc30fa76bd5ca617aedb10
SHA1 hash:
b7ae32c99dfa058db4f31d1aa70d47af248cc304
SH256 hash:
cc4a041d0808afee9207e135b72756cdaf3515721d3869e8b35ea310cd569e0e
MD5 hash:
1d364d4a7185e0c8344d4bbf1c5b6226
SHA1 hash:
826d70bf9f2dd79a02dcd3710e1cf380c397ef6e
SH256 hash:
b40a76ca3b6098ed3e3c862442012dded937ee4c987d6fcb3e955bcbf36089da
MD5 hash:
6e50d99a87832e28f61088eb38c5c69d
SHA1 hash:
7926a4ed4776d29efc7bd0246790e0ac37cf94ec
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
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: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
No further information available
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 (GUARD_CF) | high |
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