MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 811e9575c34c21ec4ac4842a2443a9357fd05fdf1251cafb817971f675100669. 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: 17
| SHA256 hash: | 811e9575c34c21ec4ac4842a2443a9357fd05fdf1251cafb817971f675100669 |
|---|---|
| SHA3-384 hash: | 9852fe531044e6ac70691e48a2af6f334d8f79f8a5df11a1c72531dd7e3173a1cd3e16a17471271e3a3881cd23c4ee45 |
| SHA1 hash: | 096e96f3641cfeed2c93d627a3bde4875fed07f7 |
| MD5 hash: | d3f0127fcf819cbc8539eb4230e6ee4f |
| humanhash: | eleven-tennessee-high-lake |
| File name: | 811e9575c34c21ec4ac4842a2443a9357fd05fdf1251cafb817971f675100669 |
| Download: | download sample |
| Signature | Formbook |
| File size: | 776'704 bytes |
| First seen: | 2025-10-10 06:47:25 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger) |
| ssdeep | 12288:OpHVIFVauOw6bFA/pZ8+xn0SNcx9O0t3vrDhsLWVNJKwSiXHA2A+9BxBVn0V6gt2:efuX0F6ZvHg005vfGLWVNLVXRXB5y6yr |
| Threatray | 1'960 similar samples on MalwareBazaar |
| TLSH | T193F40159266AEF03C6A54BF01870D7F017B8BE8D7461D3065EE77DDFB82AB5029006A3 |
| 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 |  adrian__luca |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
1
# of downloads :
91
Origin country :
HUVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
811e9575c34c21ec4ac4842a2443a9357fd05fdf1251cafb817971f675100669
Verdict:
No threats detected
Analysis date:
2025-10-10 10:05:46 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Verdict:
Malicious
Score:
99.1%
Tags:
virus shell msil
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a custom TCP request
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Adding an exclusion to Microsoft Defender
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
obfuscated obfuscated packed packed packer_detected vbnet
Verdict:
Malicious
Labled as:
Trojan.Generic
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-16T03:31:00Z UTC
Last seen:
2025-10-11T10:22:00Z UTC
Hits:
~100
Malware family:
Agent Tesla
Verdict:
Malicious
Score:
100%
Verdict:
Malware
File Type:
PE
Gathering data
Threat name:
ByteCode-MSIL.Trojan.SnakeKeylogger
Status:
Malicious
First seen:
2025-09-16 06:33:50 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
29 of 37 (78.38%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
unc_loader_037
unc_loader_078
Similar samples:
+ 1'950 additional samples on MalwareBazaar
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook discovery execution rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
811e9575c34c21ec4ac4842a2443a9357fd05fdf1251cafb817971f675100669
MD5 hash:
d3f0127fcf819cbc8539eb4230e6ee4f
SHA1 hash:
096e96f3641cfeed2c93d627a3bde4875fed07f7
SH256 hash:
893d80d38564ecae8181db24569c101b0bddaa394960fe64c16a85243abfaa5d
MD5 hash:
04d6a4cc3f755921d29a90a8b1ad0c8a
SHA1 hash:
074efa1359992045b9ad28e0a8ebb9b7cba24f06
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
1041b538ccbc7d66e59247ef7551cde9b6c282843541585e9190a8e2e3943b12
MD5 hash:
e870d1e8f3791ccc141f85f40fd2972b
SHA1 hash:
150919ee289cffa6feb40ab8261f620dd7e26aac
SH256 hash:
7c32c98bef725bb66a30f348652841de8102af19c65d34a52e65771ae09e38d1
MD5 hash:
74a92f932bad193caa26b82f16dad7b7
SHA1 hash:
ab4d3edcc4887ad24eceede964e1066e1eb04e76
SH256 hash:
44ab081157da26b2195d01148168459ff3010e4b64b2f107b0bc14807eb11f34
MD5 hash:
9006897c4a0c0c13f126b74ef766148b
SHA1 hash:
274a8e7eaca8bbce63257424324c16ea33828a55
Detections:
win_formbook_g0
Malware family:
FormBook
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: | CP_AllMal_Detector |
|---|---|
| Author: | DiegoAnalytics |
| Description: | CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication |
| Rule name: | CP_Script_Inject_Detector |
|---|---|
| Author: | DiegoAnalytics |
| Description: | Detects attempts to inject code into another process across PE, ELF, Mach-O binaries |
| Rule name: | DebuggerCheck__GlobalFlags |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DebuggerCheck__QueryInfo |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DebuggerHiding__Active |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DebuggerHiding__Thread |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DetectEncryptedVariants |
|---|---|
| Author: | Zinyth |
| Description: | Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded |
| Rule name: | dgaagas |
|---|---|
| Author: | Harshit |
| Description: | Uses certutil.exe to download a file named test.txt |
| Rule name: | Formbook |
|---|---|
| Author: | kevoreilly |
| Description: | Formbook Payload |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | MD5_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for MD5 constants |
| Rule name: | meth_stackstrings |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_imphash |
|---|
| Rule name: | pe_no_import_table |
|---|---|
| Description: | Detect pe file that no import table |
| Rule name: | RIPEMD160_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for RIPEMD-160 constants |
| Rule name: | SEH__vectored |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | SHA1_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for SHA1 constants |
| Rule name: | shellcode |
|---|---|
| Author: | nex |
| Description: | Matched shellcode byte patterns |
| 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.
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