MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b373c3d75b62cb4c96dcd0ccfd8dca09fd721794e8297dd0550cb81fc09440c4. 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


Intelligence 17 IOCs YARA 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b373c3d75b62cb4c96dcd0ccfd8dca09fd721794e8297dd0550cb81fc09440c4
SHA3-384 hash: c4d110a331a69ac5775b50221e0195d149711c0d05de97c15be95f54372f57afbdb8c6a956301ec81ff9c2b84f63d86b
SHA1 hash: 424ae1eaaf10bda39f41049616cbffe894874031
MD5 hash: 1038e86abfa3e473c8ac0e67317af127
humanhash: jig-uncle-hydrogen-cup
File name:b373c3d75b62cb4c96dcd0ccfd8dca09fd721794e8297dd0550cb81fc09440c4
Download: download sample
Signature Formbook
Create hunting rule
File size:1'231'360 bytes
First seen:2025-11-06 10:59:29 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 1895460fffad9475fda0c84755ecfee1 (341 x Formbook, 89 x AgentTesla, 56 x a310Logger)
ssdeep 24576:T5EmXFtKaL4/oFe5T9yyXYfP1ijXdaJzAvYozANwWjBFHR+:TPVt/LZeJbInQRaJaen
Threatray 2'098 similar samples on MalwareBazaar
TLSH T1D445BF0273C1C062FFAB95334B5AF6115BBC79260123AA1F13981DB9BE705B1563E7A3
TrID 40.3% (.EXE) Win64 Executable (generic) (10522/11/4)
19.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
17.2% (.EXE) Win32 Executable (generic) (4504/4/1)
7.7% (.EXE) OS/2 Executable (generic) (2029/13)
7.6% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
62
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b373c3d75b62cb4c96dcd0ccfd8dca09fd721794e8297dd0550cb81fc09440c4
Verdict:
Malicious activity
Analysis date:
2025-11-06 17:23:59 UTC
Tags:
autoit
Link:
https://app.any.run/tasks/32b46c61-8cbe-4a04-8f7b-248395927fdc

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/35969/
Detection(s):
SecuriteInfo.com.Win32.Trojan.Agent.35E5V6.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=690c7fa8ea0f3e915c238794
Tags:
autoit emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Сreating synchronization primitives
Unauthorized injection to a system process
Gathering data
Verdict:
Malicious
Labled as:
Trojan.GenericS
Link:
https://www.hybrid-analysis.com/sample/b373c3d75b62cb4c96dcd0ccfd8dca09fd721794e8297dd0550cb81fc09440c4
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-19T22:46:00Z UTC
Last seen:
2025-11-08T01:38:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/b373c3d75b62cb4c96dcd0ccfd8dca09fd721794e8297dd0550cb81fc09440c4/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/89bf3d8d-0ff4-4eb2-8c01-0c5aba4b9283
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b373c3d75b62cb4c96dcd0ccfd8dca09fd721794e8297dd0550cb81fc09440c4
Verdict:
Malware
YARA:
7 match(es)
Tags:
AutoIt Decompiled Executable PDB Path PE (Portable Executable) PE File Layout Suspect Win 32 Exe x86
Link:
https://app.malva.re/file/1038e86abfa3e473c8ac0e67317af127
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b373c3d75b62cb4c96dcd0ccfd8dca09fd721794e8297dd0550cb81fc09440c4/
Threat name:
Win32.Trojan.AutoitInject
Create hunting rule
Status:
Malicious
First seen:
2025-10-20 01:43:17 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
30 of 38 (78.95%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wnz4hv23mlfuzfw42dgp3dokbh6xef4u5aux3ucvbs4b7qeuidca._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0002a2f7d00d1d6c5289a0c6915c6a761145586b191c03d6ae9320ac487c9ed3
Formbook
15923a9fc38c609142edebb4ff10369d18d53b82986c41b7d98c5037c191db06
Formbook
336b45d6525d7f84650bedc820b46047a465bb14c2e6f7829a45be9436b363d6
Formbook
3646eadbf8a4b451c80fc5e3d74a4fbdcb8d2633933cdf3ba038533e56c98e9d
Formbook
5e890ef07e56cfc57a9468b04703a19455b181addb219eb5ed6d2e064b9ca8e9
Formbook
6a020132c224fcca5502520620cc49dc82bd68330ae2312656f586c5e33ee602
Formbook
6a552490f5fe075731262f257c9d49392da0534935d28492bcb8a3d8fa41bb0d
Formbook
6b50971b8aa1e2aa213d35f71ad5e21380edb08a6a5fb770228de55f2663ea33
Formbook
b486ec0314eabf1bd79a42201829893561d949978e264bcaec545ba7f1b25f10
Formbook
ee935a34aae49f20a073f4682747ba73ac668b8bdac1457a933915d35827d34d
Formbook
+ 2'088 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/251106-m4hjzafw4b/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/4e86c064-df98-4901-87b4-45b6b3c07c80
Unpacked files
SH256 hash:
b373c3d75b62cb4c96dcd0ccfd8dca09fd721794e8297dd0550cb81fc09440c4
MD5 hash:
1038e86abfa3e473c8ac0e67317af127
SHA1 hash:
424ae1eaaf10bda39f41049616cbffe894874031
Link:
https://www.unpac.me/results/5f417920-0634-46a6-abd2-71e553acb679/
SH256 hash:
abd63675aa6c4c7b4ad4ae85a6006efb97b42d6cf9bf40361676439d95bee439
MD5 hash:
053fb51eea2c04956cb6be2524b54d40
SHA1 hash:
42a756d5ae157bbfc4cccdb30c73add252ca7ed0
Link:
https://www.unpac.me/results/5f417920-0634-46a6-abd2-71e553acb679/
SH256 hash:
f2922b0ffc962a371f7c1a131951d7afd2ebf9711ce793dfc95d5f22cc583b94
MD5 hash:
114d02e286c744b67a48f1c0427a33cb
SHA1 hash:
df46e0893b99ddd956c47b763c45ae1dc87c8c9e
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/5f417920-0634-46a6-abd2-71e553acb679/
Parent samples :
ee935a34aae49f20a073f4682747ba73ac668b8bdac1457a933915d35827d34d
d3f7db372b8abbc2d631b14be224e7d6a0ed95ee9d52f35c913d3119d53f59ae
6b50971b8aa1e2aa213d35f71ad5e21380edb08a6a5fb770228de55f2663ea33
5113dc16660926911d51d10ad5016f483d03caa3595545d6b6c56db865d27726
8c74928671224e998fb1330bcaa480b8ba66a39c8e36f595e50c1919b0a44320
c728ea561da1e8393c94d9a1e0906e743ffd904fbd1806d8f170e6be0257f43b
2c242d74fa9b3d4ac4f5915f912d8651db987d33ac5d1fb137f26173c639ea5e
fc9bf77619974134dd7482727214b9e8e8bfcf5abc5c7d61c4e34d46b0bae4e2
c326db11b518b8bd6ea35d632efdacfdf9e0b50d59a35aee64b6a4a1a27ffed9
b373c3d75b62cb4c96dcd0ccfd8dca09fd721794e8297dd0550cb81fc09440c4
e4bbc6fec418c72f7d9e97368988dd3203141ac1b6971af74c98dc79e6648865
6abfcb6e64e69138f8fe1f5cc831263fe615467daee1cb30f08e78a37fc738f9
00d7745d7121f76a05392ea2dd1cb6f45aa905409d43e4cd32bc927a059c9219
9e91c690f7fe4706b03e0e18411977f7c2fb16fd91351e279e510d2941da3b77
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b373c3d75b62/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b373c3d75b62cb4c96dcd0ccfd8dca09fd721794e8297dd0550cb81fc09440c4

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:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:dgaagas
Create hunting rule
Author:Harshit
Description:Uses certutil.exe to download a file named test.txt
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:TH_Generic_MassHunt_Win_Malware_2025_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Windows malware mass-hunt rule - 2025
Reference:https://cyfare.net/
Rule name:TH_Win_ETW_Bypass_2025_CYFARE
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/35969/

Comments