MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 727a57b900d1a2c8ad8100fe1eda2f0fd4ff0b15297911293b80b396e5c1ea7b. 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: 14


Intelligence 14 IOCs YARA 20 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 727a57b900d1a2c8ad8100fe1eda2f0fd4ff0b15297911293b80b396e5c1ea7b
SHA3-384 hash: 6ce1316e468a93bf72e5484c72ca271a346e74bf92e8b092b705da46a49d979daf96109a59314625163c7e92b1116fc8
SHA1 hash: 0858bc368f27606bac67fe340d02bccae9fb216e
MD5 hash: d81411ab7d730c4db3bf5d53f7921220
humanhash: high-early-high-comet
File name:727a57b900d1a2c8ad8100fe1eda2f0fd4ff0b15297911293b80b396e5c1ea7b
Download: download sample
Signature Formbook
Create hunting rule
File size:1'091'072 bytes
First seen:2026-08-10 14:55:00 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'191 x AgentTesla, 20'339 x Formbook, 12'364 x SnakeKeylogger)
ssdeep 24576:bzRtpAiofswxbj3wIE2qFGN7JmTuW/FeZ:bzTphwVA32DmiW/Fe
TLSH T16835235573A18B02F8AA6FF90AA2F670477AAC8D9550C70A7EE97DDBBD373042401353
TrID 73.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
6.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.6% (.EXE) Win64 Executable (generic) (6522/11/2)
4.5% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
dhash icon e0e2aba3a5b8b8a8 (60 x AgentTesla, 21 x Formbook, 18 x SnakeKeylogger)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
144
Origin country :
HU HU
Vendor Threat Intelligence
Malware configuration found for:
RoboSki
Details
Link:
https://research.acce.ciphertechsolutions.com/results/325dcf93-42bb-421d-bbb9-de989ef0607b/
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/80078/
Detection(s):
Win.Trojan.Spynoon-9939401-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
base64 packed
Link:
https://www.filescan.io/uploads/6a79e680b831bf6082d5d12c/reports/ec9ac368-919b-4f0c-b322-75a1773953f9/overview
Verdict:
Malicious
Labled as:
AgentTesla.Generic
Link:
https://www.hybrid-analysis.com/sample/727a57b900d1a2c8ad8100fe1eda2f0fd4ff0b15297911293b80b396e5c1ea7b
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-07-28T12:25:00Z UTC
Last seen:
2026-08-11T03:15:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/727a57b900d1a2c8ad8100fe1eda2f0fd4ff0b15297911293b80b396e5c1ea7b/results?tab=lookup
Gathering data
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/727a57b900d1a2c8ad8100fe1eda2f0fd4ff0b15297911293b80b396e5c1ea7b
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/727a57b900d1a2c8ad8100fe1eda2f0fd4ff0b15297911293b80b396e5c1ea7b/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2026-07-29 01:02:22 UTC
File Type:
PE (.Net Exe)
Extracted files:
21
AV detection:
22 of 36 (61.11%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=oj5fpoia2grmrlmbad7b5wrpb7kp6cyvff4rckj3qczznzob5j5q._file
Verdict:
malicious
Label(s):
Formbook
Create hunting rule
Link:
https://reports.threatray.com/8c906838-b377-49c1-8532-5e61c75fc021
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook adware collection discovery execution persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/260810-snbz5sbr4x/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
outlook_office_path
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Command and Scripting Interpreter: PowerShell
Family: Formbook
Formbook payload
Unpacked files
SH256 hash:
727a57b900d1a2c8ad8100fe1eda2f0fd4ff0b15297911293b80b396e5c1ea7b
MD5 hash:
d81411ab7d730c4db3bf5d53f7921220
SHA1 hash:
0858bc368f27606bac67fe340d02bccae9fb216e
Link:
https://www.unpac.me/results/d241bd6e-1783-49c5-b0c1-cb2bcd8ae887/
SH256 hash:
e07ca02ee4f4b65ead65f914bf1bd920d2448f2c1220376ab2203dbdf33c7456
MD5 hash:
e76eb5a869d1655a1fb5cf68415c9560
SHA1 hash:
4d34701986a1ac6423dec21ab7d828a3671e2438
Link:
https://www.unpac.me/results/d241bd6e-1783-49c5-b0c1-cb2bcd8ae887/
SH256 hash:
47a856ff7d9bf14949f9a1deed4ba4ec9495a9ef95ee41ba6d78f630561d166c
MD5 hash:
332b4cd85d1b878f5c5bf709b5984644
SHA1 hash:
ddba69ce01e7ea28029d271d4dd2f75bc3bf454f
Link:
https://www.unpac.me/results/d241bd6e-1783-49c5-b0c1-cb2bcd8ae887/
SH256 hash:
0a1a1a6d2ee888e2d306ab8a1ada674266889ff9a657632a300acf65407b5720
MD5 hash:
9b322fa58042b5e0710b6173f9908683
SHA1 hash:
cbb4ef2f8381844fbb82b45392480e1c9c1f4e48
Link:
https://www.unpac.me/results/d241bd6e-1783-49c5-b0c1-cb2bcd8ae887/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/727a57b900d1/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/727a57b900d1a2c8ad8100fe1eda2f0fd4ff0b15297911293b80b396e5c1ea7b

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:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
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:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
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/80078/

Comments