MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a423b39b35918c0bf0833e34d224576f818fb6647f60f98050547b850029bac7. 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 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a423b39b35918c0bf0833e34d224576f818fb6647f60f98050547b850029bac7
SHA3-384 hash: b51f6044c31c634bae3b7dd9a18944a55bbfbde1080cec7d86caa5417565754e50db770f1a1dd902863d8cc72eb35673
SHA1 hash: 6dceb297f6b5fe5a29823f46431525128fbe767f
MD5 hash: ba83262e0bb15d63aa45272ccb391573
humanhash: mirror-quiet-robert-pennsylvania
File name:Commercail Invoice And Dhl Awb Tracking Details.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'264'128 bytes
First seen:2026-02-04 01:34:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 1895460fffad9475fda0c84755ecfee1 (356 x Formbook, 104 x AgentTesla, 58 x a310Logger)
ssdeep 24576:A5EmXFtKaL4/oFe5T9yyXYfP1ijXdaPwGuSe2yEIWhI1:APVt/LZeJbInQRaPwG3hIWh
TLSH T16E45BF0273D1C062FFAB92334B5AF6115BBC79260127E61F13981DB9BA701B1563E7A3
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 threatcat_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
127
Origin country :
CH CH
Vendor Threat Intelligence
Malware configuration found for:
AutoIt
Details
AutoIt
extracted scripts and files
Link:
https://research.acce.ciphertechsolutions.com/results/e8e1f1e2-ba1a-4d56-959d-9aaba67e6eff/
Malware family:
n/a
ID:
1
File name:
CommercailInvoiceAndDhlAwbTrackingDetails.exe
Verdict:
No threats detected
Analysis date:
2026-02-04 01:38:23 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/b1d4e69e-0498-4339-a133-996d2e063097

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/51595/
Detection(s):
SecuriteInfo.com.Win32.Trojan.Agent.35E5V6.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6982a2586b1af47db72c9733
Tags:
autoit emotet
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug autoit compiled-script control evasive fingerprint installer-heuristic keylogger lolbin masquerade microsoft_visual_cc packed
Link:
https://www.filescan.io/uploads/6982a25516ebb08a946671d0/reports/d121bb6e-7d8c-4e2f-9f3e-0ae37d89ddd1/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/a423b39b35918c0bf0833e34d224576f818fb6647f60f98050547b850029bac7
Result
Gathering data
Verdict:
Unknown
File Type:
Link:
https://opentip.kaspersky.com/a423b39b35918c0bf0833e34d224576f818fb6647f60f98050547b850029bac7/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a656bc54-eced-40ca-9f4e-981d5fbfbe84
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1862971
Signature
Binary is likely a compiled AutoIt script file
Found API chain indicative of sandbox detection
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)
Unusual module load detection (module proxying)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1862971 Sample: Commercail Invoice And Dhl ... Startdate: 04/02/2026 Architecture: WINDOWS Score: 100 31 www.87627711.xyz 2->31 33 www.xn--80akofifo.xn--p1ai 2->33 35 11 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 6 other signatures 2->51 11 Commercail Invoice And Dhl Awb Tracking Details.exe 2 2->11         started        signatures3 49 Performs DNS queries to domains with low reputation 31->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 14 svchost.exe 11->14         started        process6 signatures7 67 Maps a DLL or memory area into another process 14->67 69 Unusual module load detection (module proxying) 14->69 17 wTPQmZ7wB7YA.exe 14->17 injected process8 process9 19 msfeedssync.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 4 other signatures 19->59 22 Qu5Ue8FmaBbeO.exe 19->22 injected 25 chrome.exe 19->25         started        27 firefox.exe 19->27         started        process11 dnsIp12 37 www.norea.site 203.161.48.98, 49747, 49748, 49749 VNPT-AS-VNVNPTCorpVN Malaysia 22->37 39 www.xn--80akofifo.xn--p1ai 109.70.26.37, 49755, 49756, 49757 RU-CENTERRU Russian Federation 22->39 41 7 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/a423b39b35918c0bf0833e34d224576f818fb6647f60f98050547b850029bac7
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/ba83262e0bb15d63aa45272ccb391573
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a423b39b35918c0bf0833e34d224576f818fb6647f60f98050547b850029bac7/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/a423b39b35918c0bf0833e34d224576f818fb6647f60f98050547b850029bac7
Threat name:
Win32.Malware.Heuristic
Create hunting rule
Status:
Malicious
First seen:
2026-02-04 01:35:28 UTC
File Type:
PE (Exe)
Extracted files:
27
AV detection:
21 of 36 (58.33%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uqr3hgzvsggax4edhy2nejcxn6ay7ntep5qptacqkr5ykabjxldq._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/260204-bzs95agx2a/
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
Unpacked files
SH256 hash:
a423b39b35918c0bf0833e34d224576f818fb6647f60f98050547b850029bac7
MD5 hash:
ba83262e0bb15d63aa45272ccb391573
SHA1 hash:
6dceb297f6b5fe5a29823f46431525128fbe767f
Link:
https://www.unpac.me/results/9ef74e1e-196c-4ffa-8c71-f5478eb5b8b7/
SH256 hash:
76e71da5653cc1d06eefab81b16866e8396eaf3ba530abd61378043fdc6e3267
MD5 hash:
e089afa6d6726cf4ae471e69811d0324
SHA1 hash:
a92415caafab4f990682ef43a9ac7c242c4ca93b
Link:
https://www.unpac.me/results/9ef74e1e-196c-4ffa-8c71-f5478eb5b8b7/
SH256 hash:
0328be727109f49b9cc32489186bd630f5b06bd3d09470ff58b70403976aa819
MD5 hash:
6c9d83efea93367f8d3b51655673ec36
SHA1 hash:
6cf2e39fe8c616c99a7ba1ed37c2ef67ade8ff21
Link:
https://www.unpac.me/results/9ef74e1e-196c-4ffa-8c71-f5478eb5b8b7/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a423b39b3591/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/a423b39b35918c0bf0833e34d224576f818fb6647f60f98050547b850029bac7

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_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:TH_Generic_MassHunt_Win_Malware_2025_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Windows malware mass-hunt rule - 2025
Reference:https://cyfare.net/
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.

Malspam

Formbook

Executable exe a423b39b35918c0bf0833e34d224576f818fb6647f60f98050547b850029bac7

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/51595/

Comments