MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b58ccbfcc84cb5950c6e8dc9d459d2be9f4477f8d8e8f8bfb5efd757734cb4e7. 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: 18


Intelligence 18 IOCs YARA 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b58ccbfcc84cb5950c6e8dc9d459d2be9f4477f8d8e8f8bfb5efd757734cb4e7
SHA3-384 hash: 0b4fa79f64ed4708b4dcbeb41d7452aa2883295df7e8f42efb9b1d594ac308d6fc16314ebbac9fbb71ad7a72c0023c59
SHA1 hash: 59446ed6da1404a7a9dd11f1c3c3abf51ce21dd1
MD5 hash: 1e5607d4e40dbb72c718f4824a0ca2ac
humanhash: oxygen-sink-cat-queen
File name:Quote_SIAC_BMS_63763_Pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'239'040 bytes
First seen:2025-08-19 06:47:00 UTC
Last seen:2025-09-05 12:43:29 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 0b768923437678ce375719e30b21693e (143 x Formbook, 25 x MassLogger, 22 x SnakeKeylogger)
ssdeep 24576:f5EmXFtKaL4/oFe5T9yyXYfP1ijXda+rx4O8ovCePhLKSbBU:fPVt/LZeJbInQRa+9bvHJ+S
Threatray 294 similar samples on MalwareBazaar
TLSH T1C645BF0273C1C062FFAB91734B9AF6115BBC79260123E62F139819B9BD705B1563E7A3
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
dhash icon aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
82
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Quote_SIAC_BMS_63763_Pdf.exe
Verdict:
No threats detected
Analysis date:
2025-08-19 06:50:23 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/057d09cc-1568-4baf-acd3-277177dba037

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/22106/
Verdict:
Malicious
Score:
91.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68a41e148fd55a79c5292635
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:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug autoit compiled-script evasive fingerprint keylogger masquerade microsoft_visual_cc packed threat
Link:
https://www.filescan.io/uploads/68a41e21419c816a6e8b8b9e/reports/ed1d4d72-06fd-4f33-babf-e7d84c41608d/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/b58ccbfcc84cb5950c6e8dc9d459d2be9f4477f8d8e8f8bfb5efd757734cb4e7
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5dfa5343-15f4-4d52-a6dd-d0be6fb94149
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1759957
Signature
Binary is likely a compiled AutoIt script file
Initial sample is a PE file and has a suspicious name
Joe Sandbox ML detected suspicious sample
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1759957 Sample: Quote_SIAC_BMS_63763_Pdf.exe Startdate: 19/08/2025 Architecture: WINDOWS Score: 100 31 www.neonhost.xyz 2->31 33 www.5pinyin.xyz 2->33 35 21 other IPs or domains 2->35 43 Suricata IDS alerts for network traffic 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 Yara detected FormBook 2->47 51 3 other signatures 2->51 11 Quote_SIAC_BMS_63763_Pdf.exe 4 2->11         started        signatures3 49 Performs DNS queries to domains with low reputation 33->49 process4 signatures5 61 Binary is likely a compiled AutoIt script file 11->61 63 Writes to foreign memory regions 11->63 65 Maps a DLL or memory area into another process 11->65 67 Switches to a custom stack to bypass stack traces 11->67 14 svchost.exe 11->14         started        process6 signatures7 69 Maps a DLL or memory area into another process 14->69 17 Zkf9N0oTxdKSlv.exe 14->17 injected process8 process9 19 typeperf.exe 13 17->19         started        signatures10 53 Tries to steal Mail credentials (via file / registry access) 19->53 55 Tries to harvest and steal browser information (history, passwords, etc) 19->55 57 Modifies the context of a thread in another process (thread injection) 19->57 59 3 other signatures 19->59 22 zsxsw6goLPRkeA.exe 19->22 injected 25 chrome.exe 19->25         started        27 firefox.exe 19->27         started        process11 dnsIp12 37 debackere.info 81.169.145.83, 49700, 49701, 49702 STRATOSTRATOAGDE Germany 22->37 39 bytnavysluni.cloud 81.2.196.19, 49728, 49729, 49730 INTERNET-CZKtis238403KtisCZ Czech Republic 22->39 41 10 other IPs or domains 22->41 29 WerFault.exe 4 25->29         started        process13
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b58ccbfcc84cb5950c6e8dc9d459d2be9f4477f8d8e8f8bfb5efd757734cb4e7
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/1e5607d4e40dbb72c718f4824a0ca2ac
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b58ccbfcc84cb5950c6e8dc9d459d2be9f4477f8d8e8f8bfb5efd757734cb4e7/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/b58ccbfcc84cb5950c6e8dc9d459d2be9f4477f8d8e8f8bfb5efd757734cb4e7
Threat name:
Win32.Trojan.AutoitInject
Create hunting rule
Status:
Malicious
First seen:
2025-08-18 06:21:07 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wwgmx7gijs2zkddorxe5iwosx2pui57y3duprp5v57lvo42mwttq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
120449b84850ba5b41e73f85e2f178271dd1cd0b8743f1e5af6ef760aa39b199
Formbook
14a371e6549ffd778165044baeafb53330d9f0756dd17369d5abc3e56f3951fa
Formbook
659cfb359d2e9890f3488d6dd65852151f9a3d6bdc8c27fd45e8a78b3489a354
Formbook
7a0bd1cc99236bcab7acb21efb90fcdf612cc14e51d837d9e773f63ebc37c8de
Formbook
89298940d17702803fc97b47258c639f223ddebd6368a0d946647cb79acacc2e
Formbook
a21182bf32d320deebafbf52f06c370fe3762ec55793e09df10ce9e27bfe799a
Formbook
b75db5d4979ec63cf001640529fd3be14433a40d03e17e751754909617ccc4af
Formbook
b99465dde28898f671538e21692d17def78b40a44b6765093ce3940668614cc7
Formbook
+ 284 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/250819-hkh9ya1wfx/
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:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/ba4efaeb-0b23-486c-b389-ad9f5d4b71e0
Unpacked files
SH256 hash:
b58ccbfcc84cb5950c6e8dc9d459d2be9f4477f8d8e8f8bfb5efd757734cb4e7
MD5 hash:
1e5607d4e40dbb72c718f4824a0ca2ac
SHA1 hash:
59446ed6da1404a7a9dd11f1c3c3abf51ce21dd1
Link:
https://www.unpac.me/results/6c596bf7-8239-4878-85e9-605009ac5536/
SH256 hash:
8476768031dcd0e506274866cc1db87f27f9906d68699315bd535a7455ba97cd
MD5 hash:
53810f4848fa45dd4e6b8cf3eb36b067
SHA1 hash:
e54e452eb107b5d1952457f45b2ae48719745cb7
Link:
https://www.unpac.me/results/6c596bf7-8239-4878-85e9-605009ac5536/
SH256 hash:
5e71f12c5af6817400d285576d538bc3385489bb3c3f99f9403d58fe3bfddaba
MD5 hash:
c18f2bdf728a09322ca256a386ee7b9c
SHA1 hash:
ca94b7f03faf577b5b1ef3ce5a8d417968ba6dc5
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/6c596bf7-8239-4878-85e9-605009ac5536/
Parent samples :
4e48282322ec999ea5f16bfc5148a5e76ec9243e8dfb6181c964085daa55e407
1a235bb7a56f87d6c28102133f9c387866e674b4a04e95e9d76e3c7c110ce678
eeb01ff56857f7da7caad84a586abbb269ae13c5285e5a6c069e31b927765f44
659cfb359d2e9890f3488d6dd65852151f9a3d6bdc8c27fd45e8a78b3489a354
b58ccbfcc84cb5950c6e8dc9d459d2be9f4477f8d8e8f8bfb5efd757734cb4e7
7fb51ecddea989bbc4c71fb744b95e9045e64c7a534d661d972c048a40050bb7
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b58ccbfcc84c/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/b58ccbfcc84cb5950c6e8dc9d459d2be9f4477f8d8e8f8bfb5efd757734cb4e7

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: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:Formbook
Create hunting rule
Author:kevoreilly
Description:Formbook Payload
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:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
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.

Malspam

Formbook

Executable exe b58ccbfcc84cb5950c6e8dc9d459d2be9f4477f8d8e8f8bfb5efd757734cb4e7

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/22106/

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