MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 519d95af8a3334afd61a64f7b795ef87d5a430d2efcc85488caa040cc694d22a. 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: 18
| SHA256 hash: | 519d95af8a3334afd61a64f7b795ef87d5a430d2efcc85488caa040cc694d22a |
|---|---|
| SHA3-384 hash: | 8ec7200d71a29a83bef11230e8f59d71e583fe16112f916955c12aa222827a1913b135c0bc854511c4c4aa9f320f804f |
| SHA1 hash: | 2899077e94a2b76fddd59b23d8ceeaf5fba4eb41 |
| MD5 hash: | e3f822c109769b3b6513e5947d5a5a94 |
| humanhash: | steak-beryllium-louisiana-mars |
| File name: | 519d95af8a3334afd61a64f7b795ef87d5a430d2efcc85488caa040cc694d22a |
| Download: | download sample |
| Signature | Formbook |
| File size: | 832'512 bytes |
| First seen: | 2025-09-05 12:57:43 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:fv524C6VErnOw7OuYrcvvzJfVhP06bvrxLTAHGs8b8W6HY1cNSJWLJhZhan2/SId:n5y6VA7vvvz906RTCP8jcXSJ |
| Threatray | 105 similar samples on MalwareBazaar |
| TLSH | T1F205CF9D3250B59FC8578A7589A4ED74EA246CAB530BD20394E32DEFBD0C696CF101F2 |
| 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 :
64
Origin country :
HUVendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
3de86e6f888d1664ff8dbcefb037ca4906e3623f2c6d44e2d6992a9fa723792f.zip
Verdict:
Malicious activity
Analysis date:
2025-08-19 17:49:46 UTC
Tags:
arch-exec netreactor formbook xloader stealer
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Verdict:
Malicious
Score:
90.2%
Tags:
shell virus micro
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
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 obfuscated packed packed packer_detected vbnet
Verdict:
Malicious
Labled as:
Trojan.Generic
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-08-19T13:59:00Z UTC
Last seen:
2025-08-19T13:59:00Z UTC
Hits:
~1000
Verdict:
Malicious
Score:
100%
Verdict:
Malware
File Type:
PE
Gathering data
Threat name:
Win32.Backdoor.FormBook
Status:
Malicious
First seen:
2025-08-19 16:19:21 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
27 of 38 (71.05%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
unc_loader_037
formbook
Similar samples:
+ 95 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:
519d95af8a3334afd61a64f7b795ef87d5a430d2efcc85488caa040cc694d22a
MD5 hash:
e3f822c109769b3b6513e5947d5a5a94
SHA1 hash:
2899077e94a2b76fddd59b23d8ceeaf5fba4eb41
SH256 hash:
27e5ffda53751e7360f380bd82a3176a7875a555f6af5b130fb2d64ff776c895
MD5 hash:
68845a1d0f6c65bb7ecc09ca76d2f005
SHA1 hash:
0145c4314c2cf41ae583bb32784fe780c1cdaf1d
SH256 hash:
74a0e188e432790a87f90e712898baf02d9f7225aa029b9268908f32c99078ef
MD5 hash:
d29b624e6c72bfd8c8719c4d5039ddca
SHA1 hash:
2127437f696120349a4665995cedaa126538ba34
SH256 hash:
de3becc47146c7a640be9d20018cfc35b156cb7cd7500204c507eecba50689bd
MD5 hash:
9d7e64a73317b03249f12f204d80bf1f
SHA1 hash:
766acebacd968583d28c03ebcbaedb5e65a23dd4
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
cfdb32497616dcf3a5244d7f361f488411c2b28741d6e51ebf373c81c89869f1
MD5 hash:
ec27b49309c186ea83fef62f93a02fb7
SHA1 hash:
4087c82e6e0e8a821c389c7e5b7c615ee4bad6db
SH256 hash:
7a77c47c7edaeaabd0a4b6835c2d09cfac9a7db4752030c2f085c01a3ab44c30
MD5 hash:
ba79c403cd11d8639495014ccace69f2
SHA1 hash:
23f28e0ae7866aee85eb3c89418bd6ba6a9be0f4
Detections:
win_formbook_g0
Malware family:
zgRAT
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: | Formbook |
|---|---|
| Author: | kevoreilly |
| Description: | Formbook Payload |
| Rule name: | meth_stackstrings |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | NETexecutableMicrosoft |
|---|---|
| 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: | 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 |
| 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.
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