MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 2788fb910102febe17d62a3d5b95d631b88bf69c934787cabc83e83db35b7a38. 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: | 2788fb910102febe17d62a3d5b95d631b88bf69c934787cabc83e83db35b7a38 |
|---|---|
| SHA3-384 hash: | 0316f9155bb864e8a51536efc892b5cbdc142b714f9d32b71be6cccfe1af9d853fb80824955302b85d48ce156f92cc60 |
| SHA1 hash: | 1c90edb020d523afeee44c9e08f13581c759c3c0 |
| MD5 hash: | 3912d425845b3a1ac327aa01085e462b |
| humanhash: | massachusetts-zulu-saturn-equal |
| File name: | 2788fb910102febe17d62a3d5b95d631b88bf69c934787cabc83e83db35b7a38 |
| Download: | download sample |
| Signature | Formbook |
| File size: | 283'648 bytes |
| First seen: | 2026-04-21 15:02:18 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| ssdeep | 6144:ZEDuVGynb4/l6asduILuKiruLTVxQGXTwdcZIbiYjO+qg:cuVhY7sduSuKirubLEqg |
| TLSH | T134542279D3EEE013EC2AA7B9F243946BC6CDCC211956104BA74A973D7BE42CD6908247 |
| TrID | 34.1% (.EXE) Win64 Executable (generic) (6522/11/2) 23.5% (.EXE) Win32 Executable (generic) (4504/4/1) 10.7% (.ICL) Windows Icons Library (generic) (2059/9) 10.6% (.EXE) OS/2 Executable (generic) (2029/13) 10.4% (.EXE) Generic Win/DOS Executable (2002/3) |
| Magika | pebin |
| Reporter |  JAMESWT_WT |
| Tags: | Bozza-documenti dropped exe FormBook Spam-ITA |
Intelligence
File Origin
# of uploads :
1
# of downloads :
197
Origin country :
ITVendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
No threats detected
Analysis date:
2026-04-21 15:03:27 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:
94.1%
Tags:
virus
Result
Verdict:
Clean
Maliciousness:
Behaviour
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
crypt evasive formbook microsoft_visual_cc mikey packed unsafe virus
Verdict:
Malicious
Labled as:
Adware.Mikey.Generic
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-04-20T09:44:00Z UTC
Last seen:
2026-04-23T01:44:00Z UTC
Hits:
~10
Detections:
Trojan-Spy.Win32.Noon.bram Trojan-Spy.Win32.Noon.sb
Malware family:
Formbook
Verdict:
Malicious
Score:
100%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 32 Exe x86
Verdict:
Malicious
Threat:
Family.FORMBOOK
Threat name:
Win32.Backdoor.FormBook
Status:
Malicious
First seen:
2026-04-20 15:13:18 UTC
File Type:
PE (Exe)
AV detection:
27 of 38 (71.05%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
formbook
Score:
10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Program crash
System Location Discovery: System Language Discovery
Family: Formbook
Formbook payload
Unpacked files
SH256 hash:
2788fb910102febe17d62a3d5b95d631b88bf69c934787cabc83e83db35b7a38
MD5 hash:
3912d425845b3a1ac327aa01085e462b
SHA1 hash:
1c90edb020d523afeee44c9e08f13581c759c3c0
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.34
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_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: | 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: | 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: | TH_Win_ETW_Bypass_2025_CYFARE |
|---|---|
| Author: | CYFARE |
| Description: | Windows ETW Bypass Detection Rule - 2025 |
| Reference: | https://cyfare.net/ |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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