MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d03d5c962c99335e1ca1701937074be95c015d8f7cf37828c178b35acbd99309. 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 24 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d03d5c962c99335e1ca1701937074be95c015d8f7cf37828c178b35acbd99309
SHA3-384 hash: c5f561d603054e066361fb8ac988e1a0cc69d377503668dba257b48af4b31af14dbff2b8b0db25f7229c37702a4764c3
SHA1 hash: f223da0c344a7ca0aa002505583719ea04876f0e
MD5 hash: 1db19c71af65de4ff582658b6b056936
humanhash: zulu-fish-friend-table
File name:d03d5c962c99335e1ca1701937074be95c015d8f7cf37828c178b35acbd99309
Download: download sample
Signature Formbook
Create hunting rule
File size:736'768 bytes
First seen:2025-11-06 11:18:46 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 21371b611d91188d602926b15db6bd48 (70 x Formbook, 33 x AgentTesla, 20 x RemcosRAT)
ssdeep 12288:cz7hU5I5yuNHIgzSFKxWltRohBfSTso93UWR/53jKNWsrCx/37YUNbnA1ooBkAzG:cf+iN57Gtene3RxzKNWsre37/NbA+SO
TLSH T16BF42345A5C1DAA5C541B370C036CD284A353871AE6A737E436DF66E6C303D3BA72B1E
TrID 39.1% (.EXE) UPX compressed Win32 Executable (27066/9/6)
38.3% (.EXE) Win32 EXE Yoda's Crypter (26569/9/4)
7.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.5% (.EXE) Win32 Executable (generic) (4504/4/1)
2.9% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter adrian__luca
Tags:exe FormBook UPX
File size (compressed) :736'768 bytes
File size (de-compressed) :1'243'648 bytes
Format:win32/pe
Unpacked file: ea03b1c2d2aa3ec74bf4194c7f623670e13df20b4bfdaae11f2e8604521f77e4

Intelligence

File Origin
# of uploads :
1
# of downloads :
75
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
DHL-OVERDUELETTER.exe
Verdict:
No threats detected
Analysis date:
2025-10-24 08:25:56 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/dce86411-f0a9-426f-8d01-e678396ae272

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/36123/
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68fb38133bdc93eb0563c750
Tags:
shellcode autoit virus spawn
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Сreating synchronization primitives
Sending a custom TCP request
Unauthorized injection to a system process
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/d03d5c962c99335e1ca1701937074be95c015d8f7cf37828c178b35acbd99309
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-23T20:54:00Z UTC
Last seen:
2025-11-08T04:00:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/d03d5c962c99335e1ca1701937074be95c015d8f7cf37828c178b35acbd99309/results?tab=lookup
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c0ac7e6c-5839-435a-a45d-e03fea1f09ea
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/d03d5c962c99335e1ca1701937074be95c015d8f7cf37828c178b35acbd99309
Verdict:
Malware
YARA:
5 match(es)
Tags:
AutoIt Decompiled Executable PE (Portable Executable) PE File Layout Suspect Win 32 Exe x86
Link:
https://app.malva.re/file/1db19c71af65de4ff582658b6b056936
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d03d5c962c99335e1ca1701937074be95c015d8f7cf37828c178b35acbd99309/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/d03d5c962c99335e1ca1701937074be95c015d8f7cf37828c178b35acbd99309
Threat name:
Win32.Trojan.AutoitInject
Create hunting rule
Status:
Malicious
First seen:
2025-10-24 00:51:46 UTC
File Type:
PE (Exe)
Extracted files:
52
AV detection:
29 of 38 (76.32%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2a6vzfrmtezv4hfboamtob2l5foacxmpptzxqkgbpczvvs6zsmeq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan upx
Link:
https://tria.ge/reports/251106-ne2rzsam2s/
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
AutoIT Executable
Suspicious use of SetThreadContext
UPX packed file
Formbook payload
Formbook
Formbook family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e1816475-3901-4971-ab74-e10b28a4556f
Unpacked files
SH256 hash:
d03d5c962c99335e1ca1701937074be95c015d8f7cf37828c178b35acbd99309
MD5 hash:
1db19c71af65de4ff582658b6b056936
SHA1 hash:
f223da0c344a7ca0aa002505583719ea04876f0e
Link:
https://www.unpac.me/results/22cc47a7-1e15-4a44-be12-2f19c6966bfe/
SH256 hash:
ea03b1c2d2aa3ec74bf4194c7f623670e13df20b4bfdaae11f2e8604521f77e4
MD5 hash:
d30e1c2cf252b4ed2b9e325bda40b81c
SHA1 hash:
4a4b8f0848470066cbd9043f45f0506f1779c950
Detections:
AutoIT_Compiled
Create hunting rule
Link:
https://www.unpac.me/results/22cc47a7-1e15-4a44-be12-2f19c6966bfe/
Parent samples :
d03d5c962c99335e1ca1701937074be95c015d8f7cf37828c178b35acbd99309
ea03b1c2d2aa3ec74bf4194c7f623670e13df20b4bfdaae11f2e8604521f77e4
SH256 hash:
7bc02e40d267f0806ccbe4ddf692cf7e30e15aea70d7459a62be513ef77c43fa
MD5 hash:
64bb70052b94833bae8c6c2ed8355480
SHA1 hash:
3c5b9df2ff518b5026fa23510781e3d1cd15cd5a
Link:
https://www.unpac.me/results/22cc47a7-1e15-4a44-be12-2f19c6966bfe/
SH256 hash:
10923ea59dd5331d65d4c3c6f3b2affe4fe0a0327df3c318ca00ac14e593f33c
MD5 hash:
b2f4c247b5952aba37ea591d73e90d62
SHA1 hash:
f56579ede6c544ebe589959fc0f9b2476990bb62
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/22cc47a7-1e15-4a44-be12-2f19c6966bfe/
Parent samples :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 family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/d03d5c962c99/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.94
Link:
https://yomi.yoroi.company/submissions/d03d5c962c99335e1ca1701937074be95c015d8f7cf37828c178b35acbd99309

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: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__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_Win_ETW_Bypass_2025_CYFARE
Create hunting rule
Author:CYFARE
Description:Windows ETW Bypass Detection Rule - 2025
Reference:https://cyfare.net/
Rule name:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Create hunting rule
Author:malware-lu
Rule name:upx_largefile
Create hunting rule
Author:k3nr9

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Formbook

Executable exe d03d5c962c99335e1ca1701937074be95c015d8f7cf37828c178b35acbd99309

(this sample)

Formbook

Executable exe ea03b1c2d2aa3ec74bf4194c7f623670e13df20b4bfdaae11f2e8604521f77e4

Cape
Cape
https://www.capesandbox.com/analysis/36123/
  
Dropping
SHA256 ea03b1c2d2aa3ec74bf4194c7f623670e13df20b4bfdaae11f2e8604521f77e4
  
Dropping
MD5 d30e1c2cf252b4ed2b9e325bda40b81c

Comments