MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8ef4fde166a079ee1f41b238839f301ede99526229b8cf4be228369445e02436. 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: 8ef4fde166a079ee1f41b238839f301ede99526229b8cf4be228369445e02436
SHA3-384 hash: 73bc8e90226a5fbb83966c002e78bf690288a500a6415f74294c6dd196c0de517dbdb2becd7e466ff538e50d6a26b310
SHA1 hash: 1254a79f9a01d28a24a8fd2080dc008a68974853
MD5 hash: ca9f4709b0495d11ee9ba46df781d2f2
humanhash: earth-undress-illinois-three
File name:SecuriteInfo.com.Heur.26904.22718
Download: download sample
Signature Formbook
Create hunting rule
File size:1'239'552 bytes
First seen:2025-08-25 05:14:59 UTC
Last seen:2025-08-25 07:07:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 1895460fffad9475fda0c84755ecfee1 (296 x Formbook, 52 x AgentTesla, 35 x SnakeKeylogger)
ssdeep 24576:65EmXFtKaL4/oFe5T9yyXYfP1ijXdanGXyUZOm95GFPP67gf9:6PVt/LZeJbInQRanE77g
Threatray 443 similar samples on MalwareBazaar
TLSH T1FE45BF027391C062FFAB92334F5AF6115BBC79660123A62F13981DB9BD701B1563E7A3
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 SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
84
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.Heur.26904.22718
Verdict:
No threats detected
Analysis date:
2025-08-25 05:18:22 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/243f7466-1985-473d-b9fd-5ae0174aba80

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/23320/
Detection(s):
SecuriteInfo.com.Heur.26904.22718.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
90.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68abf1a8e9d9dbcfd96de71f
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
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/8ef4fde166a079ee1f41b238839f301ede99526229b8cf4be228369445e02436
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-08-25T01:14:00Z UTC
Last seen:
2025-08-25T01:14:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/8ef4fde166a079ee1f41b238839f301ede99526229b8cf4be228369445e02436/results?tab=lookup
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/59be73ad-d979-4138-b0aa-076fc5d74287
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8ef4fde166a079ee1f41b238839f301ede99526229b8cf4be228369445e02436
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/ca9f4709b0495d11ee9ba46df781d2f2
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8ef4fde166a079ee1f41b238839f301ede99526229b8cf4be228369445e02436/
Threat name:
Win32.Trojan.AutoitInject
Create hunting rule
Status:
Malicious
First seen:
2025-08-25 04:14:06 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=r32p3ylgub464h2bwi4ihhzqd3pjsutcfg4m6s7cfa3jirpaeq3a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0ec78936cfd600f8f7b64b4d58bf9ea1fb2586c96e0e2fefa938c758712b24d1
Formbook
0faf94a24b00a7dca3cb0e26b29b0c3f72f66e2f968d997ad45e74620efeb11b
Formbook
261a6e855850526b2697a4065225fee9338f1e2c916f57e60e04516709069141
Formbook
3646eadbf8a4b451c80fc5e3d74a4fbdcb8d2633933cdf3ba038533e56c98e9d
Formbook
68b3414e84bca98a83ceebfc80623bd11d9dfda5452a775904b6bb707f44ab98
Formbook
7a0bd1cc99236bcab7acb21efb90fcdf612cc14e51d837d9e773f63ebc37c8de
Formbook
92465a1c7629bb10ce9f67b667871537887a281b66a90dd4d481612111d3dd63
Formbook
9b5938a8e6a10e191231b99e55c60c7ebce26dbc038012b60bc9682719dded33
Formbook
error
Formbook
+ 433 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/250825-fx73qacj3z/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
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/18f798a9-33b5-457c-ba41-24b74a195829
Unpacked files
SH256 hash:
8ef4fde166a079ee1f41b238839f301ede99526229b8cf4be228369445e02436
MD5 hash:
ca9f4709b0495d11ee9ba46df781d2f2
SHA1 hash:
1254a79f9a01d28a24a8fd2080dc008a68974853
Link:
https://www.unpac.me/results/99a100c6-ef39-4760-9590-20927783b1a3/
SH256 hash:
81efd7592841529f155fa1e7689851efd236ffc8cae2f8c74cb73fcc689db4aa
MD5 hash:
d78ca65cfb803b8b7c054ecc5c7f8435
SHA1 hash:
0714f0b5d4f146032abbebddb5977dedb9149b07
Link:
https://www.unpac.me/results/99a100c6-ef39-4760-9590-20927783b1a3/
SH256 hash:
f4b87f22895691a03d89ead2f1981f286d1cfcf6fcc53da850f003a45aa13fe1
MD5 hash:
a938cd0ef4ed05d24ae4da021151fcb4
SHA1 hash:
9e69e3e35af2eeaf600d68cbe81406be6c8460a3
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/99a100c6-ef39-4760-9590-20927783b1a3/
Parent samples :
8ef4fde166a079ee1f41b238839f301ede99526229b8cf4be228369445e02436
6f78f41f127a47b73306a3c9f4d07fea0c2acb977e85bcc7055a171b44cd3646
09472ed1c419959674e30b72c78a5fe0f7033c1ae5b6d1226468c2939dcea592
aef5d4593ccbc3429500b7e49d0f735bba83f811df85898febff746babd0eca2
6b6662c1050599805c0a20155ca0c8fdb566858e1914e273a69f572a5e3e61ef
a3dedbbf981145de82f06ad01c0660c92d476b7d3111de05cdc3cfc3e67c8404
30fea26dda88dc8a60e063f439547077261fdb044aa47aa108bd7457abb51998
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8ef4fde166a0/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/8ef4fde166a079ee1f41b238839f301ede99526229b8cf4be228369445e02436

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_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: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)

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/23320/

Comments