MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 41eaa4d9ca00fdef1f8ac2b02ffbb0498b8ed8565916247c20b4a41beaa102a8. 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: 16


Intelligence 16 IOCs YARA 24 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 41eaa4d9ca00fdef1f8ac2b02ffbb0498b8ed8565916247c20b4a41beaa102a8
SHA3-384 hash: e5808d515d2970d3254740a7b9b44b4dc8eccabb11cd6a6e91b6aeaf50a996207b196b6428076ecef3ace7f8b933cb3e
SHA1 hash: 9c704b8c8e19d00a801f312f9d7e465815027bba
MD5 hash: 174428837c8f982059da3d9b518c4f8a
humanhash: autumn-skylark-nineteen-skylark
File name:41eaa4d9ca00fdef1f8ac2b02ffbb0498b8ed8565916247c20b4a41beaa102a8
Download: download sample
Signature Formbook
Create hunting rule
File size:1'100'288 bytes
First seen:2025-09-05 13:09:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 91d07a5e22681e70764519ae943a5883 (93 x Formbook, 14 x RemcosRAT, 11 x AgentTesla)
ssdeep 24576:Xtb20pkaCqT5TBWgNQ7aEogbaSnxTYlh6A:UVg5tQ7aEo8nTy5
Threatray 4'055 similar samples on MalwareBazaar
TLSH T16735CF1363DD8360C3B25273BA25B711BEBB782506B5F96B2FD4093DF920162521EA73
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 :
55
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
41eaa4d9ca00fdef1f8ac2b02ffbb0498b8ed8565916247c20b4a41beaa102a8
Verdict:
No threats detected
Analysis date:
2025-09-05 20:13:52 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/41e1a2b9-6e54-4250-b537-24e1db14d162

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/25594/
Detection(s):
SecuriteInfo.com.PSW.Agent.BORA.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68bae162eb163e0ec1848305
Tags:
autoit emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context autoit compiled-script fingerprint keylogger microsoft_visual_cc nymeria obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/68baed3efe1969faa8a6c856/reports/c8e4e4b8-295c-49a3-ad7a-36ac7b760284/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/41eaa4d9ca00fdef1f8ac2b02ffbb0498b8ed8565916247c20b4a41beaa102a8
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-08-21T11:09:00Z UTC
Last seen:
2025-08-21T11:09:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/41eaa4d9ca00fdef1f8ac2b02ffbb0498b8ed8565916247c20b4a41beaa102a8/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c2644006-0ddc-4f75-b470-8aa390b4361f
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/41eaa4d9ca00fdef1f8ac2b02ffbb0498b8ed8565916247c20b4a41beaa102a8
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/174428837c8f982059da3d9b518c4f8a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/41eaa4d9ca00fdef1f8ac2b02ffbb0498b8ed8565916247c20b4a41beaa102a8/
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-08-21 17:43:43 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
26 of 36 (72.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ihvkjwokad666h4kykyc765qjgfy5wcwlelci7bawssbx2vbakua._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
autoit
Create hunting rule
Similar samples:
212151a618e9234e1c746f364ae9f98f12a2198c0ac9c4b3058d056541163240
Formbook
21d3f57e61ce525123d11ca6da1dbfe05b9e95bdd5867309e38d59c4140f7d86
Formbook
3f56b75e0a22acce7e85ba3b5e24ba8ccdfc573929376671a0ababd8a5db6686
Formbook
41eaa4d9ca00fdef1f8ac2b02ffbb0498b8ed8565916247c20b4a41beaa102a8
Formbook
617bf6800d42409a74ae0539d3e3ffc412e6c4bb137c232159c3ca946bc0fcdd
Formbook
8a91c4bf99a674909e6993d52e061547517056d36f9b8e828a9148eb412ffa73
Formbook
94976e161177276c6c1f03697f87bbbda781fedb937342a311728f51a3bce501
Formbook
9e08235a1ee9df4857b8bdb391e552272f34f7d517a1e2aadea599ce7cfb0da4
Formbook
a8a7abb66cf22c7f804029fa215b1dd39861eda91874af97436a4ac738670f99
Formbook
error
Formbook
+ 4'045 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:b19x discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/250905-rbhrgsbk3w/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/2bdf9a0c-3c32-4906-8f67-26877245d802
Unpacked files
SH256 hash:
41eaa4d9ca00fdef1f8ac2b02ffbb0498b8ed8565916247c20b4a41beaa102a8
MD5 hash:
174428837c8f982059da3d9b518c4f8a
SHA1 hash:
9c704b8c8e19d00a801f312f9d7e465815027bba
Link:
https://www.unpac.me/results/b174c631-8690-407a-b006-17038ff2a148/
SH256 hash:
b091f6ad53118a1f608aefc2be7d47e75a8c3e72e0e118ebcf98e7469bab07aa
MD5 hash:
df816e9879643f7070eafc6328fbfda0
SHA1 hash:
bb66ecc275fdef5bb8d15ead3b400cc05dd1c5df
Detections:
win_formbook_w0
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Windows_Trojan_Formbook
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/b174c631-8690-407a-b006-17038ff2a148/
Parent samples :
e73c05dcca84ba611c3dac5e498c600d33cea3df540aebbd9de1cf78c52851de
51ed3754e84d112a11271f10693058541e7190f28fcddad4388ca52bb22dc081
9a9462484d951513f3df6e77a7960211c539fd00cb887098a3080ceb330dedfe
41eaa4d9ca00fdef1f8ac2b02ffbb0498b8ed8565916247c20b4a41beaa102a8
9e08235a1ee9df4857b8bdb391e552272f34f7d517a1e2aadea599ce7cfb0da4
3a3ae02ddba7f8bd4930c66e0b655e7aef3235181a5292b94eb8be477c0e213a
dfdbf3ff165aa2e92982c0f1ac53c7ee28f7d78fa39027386934ba98fbe5b62b
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/41eaa4d9ca00fdef1f8ac2b02ffbb0498b8ed8565916247c20b4a41beaa102a8

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_AllMal_Detector
Create hunting rule
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: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_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:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:YahLover
Create hunting rule
Author:Kevin Falcoz
Description:YahLover

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/25594/

Comments