MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b9404b68730c9f6c3f7aa156bec2374f76e64d1526512d87ff5451f823da8185. 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: 19


Intelligence 19 IOCs YARA 13 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b9404b68730c9f6c3f7aa156bec2374f76e64d1526512d87ff5451f823da8185
SHA3-384 hash: d1a1c26fb5ebbae72a40310d1e7bc772be700577e5517fc7a270c72cb1b48b413bf0ae4386aca63037ced967cae82380
SHA1 hash: 3804f21eb9ab6983b314946af23a64f9a95178f9
MD5 hash: f9b958386d28f258867e0b92be151e09
humanhash: green-queen-beryllium-zulu
File name:NAPHTHA HYDROTREATER UNIT-IR-4651.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'220'608 bytes
First seen:2025-09-26 11:19:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 1895460fffad9475fda0c84755ecfee1 (309 x Formbook, 52 x AgentTesla, 36 x SnakeKeylogger)
ssdeep 24576:t5EmXFtKaL4/oFe5T9yyXYfP1ijXdalnxElkBRd1ipG+VTCtp:tPVt/LZeJbInQRal+l0G46TC
TLSH T16B45CF027381D066FFAB91334F9AF6115BBC69260123E61F13981DB9BE701B1563E7A3
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 lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
134
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
NAPHTHA HYDROTREATER UNIT-IR-4651.exe
Verdict:
No threats detected
Analysis date:
2025-09-26 11:20:51 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/57d9e99a-9be7-4c46-85d5-c96ea0829779

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/29153/
Detection(s):
SecuriteInfo.com.Win32.Trojan.Agent.35E5V6.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
70%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68d67719d42217a4290be371
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 fingerprint fingerprint keylogger lolbin microsoft_visual_cc netsh packed reg
Link:
https://www.filescan.io/uploads/68d67710044ae46c241e07f6/reports/fabfc67b-f7ff-43f5-8bfa-6d25b9101501/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/b9404b68730c9f6c3f7aa156bec2374f76e64d1526512d87ff5451f823da8185
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-25T23:50:00Z UTC
Last seen:
2025-09-25T23:50:00Z UTC
Hits:
~100
Detections:
Trojan.Win32.Strab.sb Trojan.Win32.Inject.sb HEUR:Trojan.Script.AUO.gen PDM:Trojan.Win32.Generic Trojan-Spy.Win32.Noon.sb
Link:
https://opentip.kaspersky.com/b9404b68730c9f6c3f7aa156bec2374f76e64d1526512d87ff5451f823da8185/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/613bf49b-b3ee-49ca-b9ac-263bbc59a2e4
Result
Threat name:
FormBook, XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1784699
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus detection for URL or domain
Binary is likely a compiled AutoIt script file
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
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 dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Sample uses string decryption to hide its real strings
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 AntiVM3
Yara detected FormBook
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1784699 Sample: NAPHTHA HYDROTREATER UNIT-I... Startdate: 26/09/2025 Architecture: WINDOWS Score: 100 59 www.tradingliquid.xyz 2->59 61 www.metricair.xyz 2->61 63 20 other IPs or domains 2->63 69 Suricata IDS alerts for network traffic 2->69 71 Found malware configuration 2->71 73 Malicious sample detected (through community Yara rule) 2->73 77 13 other signatures 2->77 11 NAPHTHA HYDROTREATER UNIT-IR-4651.exe 4 2->11         started        14 DellUpdate.exe 3 2->14         started        16 DellUpdate.exe 2 2->16         started        signatures3 75 Performs DNS queries to domains with low reputation 61->75 process4 signatures5 89 Binary is likely a compiled AutoIt script file 11->89 91 Writes to foreign memory regions 11->91 93 Maps a DLL or memory area into another process 11->93 18 svchost.exe 11->18         started        21 conhost.exe 11->21         started        95 Multi AV Scanner detection for dropped file 14->95 23 DellUpdate.exe 14->23         started        25 DellUpdate.exe 14->25         started        27 DellUpdate.exe 14->27         started        31 2 other processes 14->31 29 DellUpdate.exe 16->29         started        process6 signatures7 67 Maps a DLL or memory area into another process 18->67 33 LLywqNRmf5.exe 18->33 injected process8 dnsIp9 53 mostry.online 46.242.240.233, 49743, 49745, 80 HOMEPL-ASPL Poland 33->53 55 71042.bodis.com 199.59.243.228, 49716, 49717, 49719 BODIS-NJUS United States 33->55 57 9 other IPs or domains 33->57 36 forfiles.exe 15 33->36         started        process10 file11 49 C:\Users\user\AppData\Local\Temp\l2nho.exe, PE32 36->49 dropped 79 Tries to steal Mail credentials (via file / registry access) 36->79 81 Tries to harvest and steal browser information (history, passwords, etc) 36->81 83 Modifies the context of a thread in another process (thread injection) 36->83 85 2 other signatures 36->85 40 l2nho.exe 3 36->40         started        43 firefox.exe 36->43         started        signatures12 process13 signatures14 87 Multi AV Scanner detection for dropped file 40->87 45 l2nho.exe 1 6 40->45         started        process15 dnsIp16 65 45.138.48.85, 1177, 49718, 49721 ASDETUKhttpwwwheficedcomGB Germany 45->65 51 C:\Users\user\AppData\...\DellUpdate.exe, PE32 45->51 dropped file17
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b9404b68730c9f6c3f7aa156bec2374f76e64d1526512d87ff5451f823da8185
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/f9b958386d28f258867e0b92be151e09
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b9404b68730c9f6c3f7aa156bec2374f76e64d1526512d87ff5451f823da8185/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/b9404b68730c9f6c3f7aa156bec2374f76e64d1526512d87ff5451f823da8185
Threat name:
Win32.Trojan.AutoitInject
Create hunting rule
Status:
Malicious
First seen:
2025-09-26 03:51:46 UTC
File Type:
PE (Exe)
Extracted files:
14
AV detection:
27 of 36 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xfaew2dtbspwyp32ufll5qrxj53omtivezis3b77kri7qi62qgcq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/250926-nfwblaxsev/
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/7b2fe18c-1ee8-4906-810e-b6564e0c2653
Unpacked files
SH256 hash:
b9404b68730c9f6c3f7aa156bec2374f76e64d1526512d87ff5451f823da8185
MD5 hash:
f9b958386d28f258867e0b92be151e09
SHA1 hash:
3804f21eb9ab6983b314946af23a64f9a95178f9
Link:
https://www.unpac.me/results/4eef2a68-09d0-42a3-8142-5248edb42420/
SH256 hash:
f14222d06606748bcfa11a3d55e044cd01ae32e1988f4a648507fb5c592d3882
MD5 hash:
a7782a9af7752cb5b83d6ffbaa5948b9
SHA1 hash:
fa3ab66b32060964b2aee7639543d7074584c9c4
Link:
https://www.unpac.me/results/4eef2a68-09d0-42a3-8142-5248edb42420/
SH256 hash:
788855ea3d57d8e28a3fc7d59f77bbd3e08b585885ae25d57c92daba59dde7e1
MD5 hash:
addde738eedefe440fd9044f6a96ae1c
SHA1 hash:
f9856d4f9f18bbdc20a4f5b27990e9c53b523abe
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/4eef2a68-09d0-42a3-8142-5248edb42420/
Parent samples :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 family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b9404b68730c/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/b9404b68730c9f6c3f7aa156bec2374f76e64d1526512d87ff5451f823da8185

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: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: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: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:TH_Generic_MassHunt_Win_Malware_2025_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Windows malware mass-hunt 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.

Malspam

Formbook

Executable exe b9404b68730c9f6c3f7aa156bec2374f76e64d1526512d87ff5451f823da8185

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/29153/

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