MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8406e19b242c41f5556732b329901830c70d46840daa2f499b19aea02bc42f58. 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: 15


Intelligence 15 IOCs YARA 15 File information Comments
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SHA256 hash: 8406e19b242c41f5556732b329901830c70d46840daa2f499b19aea02bc42f58
SHA3-384 hash: 4c312f867635b7b1145779f831a7be204838bc930406d0a484c45c39c3af899284e0794dee7385fa0ed474482d2db3b4
SHA1 hash: 73cf80e53a072e9a2aadf20883c5a4e98f92ecb6
MD5 hash: 4ef033bc6262a87752a2c4fa9af179d2
humanhash: fillet-carpet-sixteen-berlin
File name:PO978600.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'159'168 bytes
First seen:2026-03-02 16:40:09 UTC
Last seen:2026-03-02 17:21:15 UTC
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 24576:86Ku1TJ4c59sm5DmyuacJ0KRfg/ZIC2H6Ras2nY/ySvnQI5aO:86Z1l4ms4mAqRfg/ZILaRGYjPBU
TLSH T11935F12067A6DC06C629423209A5F5788775CE86F015D25ABFED3DDB7B6BF110E82343
TrID 44.6% (.EXE) Win64 Executable (generic) (6522/11/2)
14.0% (.ICL) Windows Icons Library (generic) (2059/9)
13.8% (.EXE) OS/2 Executable (generic) (2029/13)
13.7% (.EXE) Generic Win/DOS Executable (2002/3)
13.6% (.EXE) DOS Executable (generic) (2000/1)
Magika pebin
dhash icon 60c8601040b2b200 (6 x Formbook, 2 x PhantomStealer, 1 x VIPKeylogger)
Reporter BlinkzSec
Tags:exe FormBook katz-adv-br

Intelligence

File Origin
# of uploads :
2
# of downloads :
526
Origin country :
ES ES
Vendor Threat Intelligence
Malware configuration found for:
NETReactor
Details
Link:
https://research.acce.ciphertechsolutions.com/results/41e9ebcd-a2e4-4e3f-a4d2-3b7189d1fce0/
Malware family:
n/a
ID:
1
File name:
PO978600.exe
Verdict:
No threats detected
Analysis date:
2026-03-02 16:42:46 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/bffbc29f-fc0f-4d12-8181-756908ac9d56

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/55286/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.3463.29143.6793.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69a5bd88002d37d5c982d3f9
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
Launching a process
Сreating synchronization primitives
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Verdict:
Malicious
Labled as:
Dacic.10860.Generic
Link:
https://www.hybrid-analysis.com/sample/8406e19b242c41f5556732b329901830c70d46840daa2f499b19aea02bc42f58
Verdict:
Malicious
File Type:
exe x64
Detections:
Trojan.Win32.Agent.sb Trojan.MSIL.Taskun.sb HEUR:Trojan.MSIL.Injuke.gen PDM:Trojan.Win32.Generic
Link:
https://opentip.kaspersky.com/8406e19b242c41f5556732b329901830c70d46840daa2f499b19aea02bc42f58/results?tab=lookup
Malware family:
KeyBase
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/21ffced8-0a34-47fe-8cee-c3b8b68bf37b
Score:
88%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8406e19b242c41f5556732b329901830c70d46840daa2f499b19aea02bc42f58
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8406e19b242c41f5556732b329901830c70d46840daa2f499b19aea02bc42f58/
Verdict:
Malicious
Link:
https://tip.neiki.dev/file/8406e19b242c41f5556732b329901830c70d46840daa2f499b19aea02bc42f58
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2026-03-02 16:31:48 UTC
File Type:
PE+ (.Net Exe)
Extracted files:
41
AV detection:
14 of 23 (60.87%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qqdodgzefra7kvlhgkzsteaygddq2ruebwvc6sm3dgxkak6ef5ma._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
n/a
Score:
  8/10
Tags:
execution
Link:
https://tria.ge/reports/260302-t6q3fshw5c/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Unpacked files
SH256 hash:
8406e19b242c41f5556732b329901830c70d46840daa2f499b19aea02bc42f58
MD5 hash:
4ef033bc6262a87752a2c4fa9af179d2
SHA1 hash:
73cf80e53a072e9a2aadf20883c5a4e98f92ecb6
Link:
https://www.unpac.me/results/727479f8-f717-413c-bfb7-4e06a622fa63/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8406e19b242c/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/8406e19b242c41f5556732b329901830c70d46840daa2f499b19aea02bc42f58

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
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
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:NET
Create hunting rule
Author:malware-lu
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: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.

Web download

Formbook

Executable exe 8406e19b242c41f5556732b329901830c70d46840daa2f499b19aea02bc42f58

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/55286/
  
URLhaus
https://urlhaus.abuse.ch/url/3788623/

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