MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 728546301b7008b5a1fb3aea761701debc5b249e959baa0d09cfba30be90e012. 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 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 728546301b7008b5a1fb3aea761701debc5b249e959baa0d09cfba30be90e012
SHA3-384 hash: ac08be96efb0469fef293a90aaa1af1701a05359822ec41c73a8118dfaf6a443188c388f5d149e82b22ee18b64929a72
SHA1 hash: 509d30a5dd51d5305962caeea73d6a5015180b78
MD5 hash: bc352a63e8fb9e42a955285345025e75
humanhash: grey-don-white-mockingbird
File name:Payments Reciept Invoice PO# 110228.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:721'408 bytes
First seen:2025-11-25 13:30:11 UTC
Last seen:2025-12-08 15:40:36 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 21371b611d91188d602926b15db6bd48 (70 x Formbook, 33 x AgentTesla, 20 x RemcosRAT)
ssdeep 12288:/z7hU5I5yuNHIgzSFKxWltRohBfSTso93U618R4nJk5a9RJ/jYyZc6NAYjLLO7:/f+iN57Gtene3xhMqsyjAYLL0
Threatray 2'217 similar samples on MalwareBazaar
TLSH T175E4235746C1E8A9D66173708836CCA05A743C705E06A62B876DF2BFAC32347DD2B71A
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 lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
129
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
_728546301b7008b5a1fb3aea761701debc5b249e959baa0d09cfba30be90e012.exe
Verdict:
Malicious activity
Analysis date:
2025-11-25 13:32:16 UTC
Tags:
auto-startup
Link:
https://app.any.run/tasks/e6cf89db-f8da-451a-a63b-72e8e6459a99

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/41456/
Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6925af89587b4206e7f2c41d
Tags:
autorun spawn
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Connection attempt
Creating a window
Creating a file in the %temp% directory
Creating a file
Creating a process from a recently created file
Launching a process
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
autoit compiled-script masquerade microsoft_visual_cc packed packed packed upx
Link:
https://www.filescan.io/uploads/6925af808caf4f46cdec6e08/reports/d00fe069-a406-4777-9168-9b9d360fab3b/overview
Verdict:
Malicious
Labled as:
Doina.Generic
Link:
https://www.hybrid-analysis.com/sample/728546301b7008b5a1fb3aea761701debc5b249e959baa0d09cfba30be90e012
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-24T10:13:00Z UTC
Last seen:
2025-11-27T09:28:00Z UTC
Hits:
~1000
Detections:
Trojan-Spy.Win32.Noon.bods Trojan.Win32.Zenpak.sb Trojan.Win32.Strab.sb Trojan-Spy.Noon.HTTP.ServerRequest Trojan-Dropper.Win32.Dorifel.sbd PDM:Trojan.Win32.Generic Backdoor.Agent.HTTP.C&C Trojan-PSW.Win32.Stealer.sb Trojan.Win32.Inject.sb Trojan.Win32.Auzenpak.sb Trojan.Win32.Agent.sb Trojan-Spy.Win32.Noon.sb VHO:Trojan-Spy.Win32.Noon.bogm
Link:
https://opentip.kaspersky.com/728546301b7008b5a1fb3aea761701debc5b249e959baa0d09cfba30be90e012/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/fb083cc7-5576-4e20-a0ab-135c792d8cee
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1820542
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Binary is likely a compiled AutoIt script file
Drops VBS files to the startup folder
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sigma detected: Drops script at startup location
Sigma detected: Rundll32 Execution Without CommandLine Parameters
Sigma detected: WScript or CScript Dropper
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)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1820542 Sample: Payments Reciept Invoice PO... Startdate: 25/11/2025 Architecture: WINDOWS Score: 100 47 www.thisismy.gallery 2->47 49 www.oi3tf2.vip 2->49 51 3 other IPs or domains 2->51 57 Antivirus / Scanner detection for submitted sample 2->57 59 Multi AV Scanner detection for submitted file 2->59 61 Yara detected FormBook 2->61 63 8 other signatures 2->63 12 Payments Reciept Invoice PO# 110228.exe 6 2->12         started        16 wscript.exe 1 2->16         started        signatures3 process4 file5 45 C:\Users\user\AppData\Local\...\spiketail.exe, PE32 12->45 dropped 81 Binary is likely a compiled AutoIt script file 12->81 18 spiketail.exe 3 12->18         started        83 Windows Scripting host queries suspicious COM object (likely to drop second stage) 16->83 22 spiketail.exe 2 16->22         started        signatures6 process7 file8 43 C:\Users\user\AppData\...\spiketail.vbs, data 18->43 dropped 65 Antivirus detection for dropped file 18->65 67 Multi AV Scanner detection for dropped file 18->67 69 Binary is likely a compiled AutoIt script file 18->69 75 3 other signatures 18->75 24 svchost.exe 18->24         started        71 Writes to foreign memory regions 22->71 73 Maps a DLL or memory area into another process 22->73 27 svchost.exe 22->27         started        signatures9 process10 signatures11 77 Maps a DLL or memory area into another process 24->77 79 Unusual module load detection (module proxying) 24->79 29 frit1vVDgHdD7l.exe 24->29 injected process12 process13 31 rundll32.exe 13 29->31         started        signatures14 85 Tries to steal Mail credentials (via file / registry access) 31->85 87 Tries to harvest and steal browser information (history, passwords, etc) 31->87 89 Modifies the context of a thread in another process (thread injection) 31->89 91 2 other signatures 31->91 34 mnfNgAj5JgG.exe 31->34 injected 37 chrome.exe 31->37         started        39 firefox.exe 31->39         started        process15 dnsIp16 53 www.fruitmyday.ie 188.165.0.143, 49693, 80 OVHFR France 34->53 55 thisismy.gallery 3.33.130.190, 80 AMAZONEXPANSIONGB United States 34->55 41 WerFault.exe 4 37->41         started        process17
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/728546301b7008b5a1fb3aea761701debc5b249e959baa0d09cfba30be90e012
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/bc352a63e8fb9e42a955285345025e75
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/728546301b7008b5a1fb3aea761701debc5b249e959baa0d09cfba30be90e012/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/728546301b7008b5a1fb3aea761701debc5b249e959baa0d09cfba30be90e012
Threat name:
Win32.Trojan.Doina
Create hunting rule
Status:
Malicious
First seen:
2025-11-24 12:59:19 UTC
File Type:
PE (Exe)
Extracted files:
52
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=okcumma3oaellip3hlvhmfyb326fwje6swn2udijz65dbpuq4aja._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
04192a8beaa2f78a1c4ab5764134930e49fe58b202f7ea99a2421809a12acee2
Formbook
061e7c16799ad41c3ca701ec1f4d06c7ad0c1c44e4c9bf4a57fd6eddb2ffa923
Formbook
1336a81d27c381bfaefd7d763b6c93d593f9c181fe97522b8248d520c6b0e2ff
Formbook
29b52ea1de3a9d2e291aa46c8a603621a05cfa96d72462d1a235d0c6b7948257
Formbook
51baf7fe0bb25ca0810b31eb224f2c779ccdb6086151139dfcf95ebc70bad029
Formbook
a3701fb120b8bf03636784197b6584ed43b3a18215b27b4c8d85b0ee5f415bf7
Formbook
a422d6ce2f3c8376411decfba73a28fbaaed1eefd5ce12d4d6f62afb3d03915b
Formbook
af9e19b850ac8564ed2282c50b626f7e2baeb77dcd86a5936d09eb3248cee161
Formbook
+ 2'207 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan upx
Link:
https://tria.ge/reports/251125-qr6mtasjfv/
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
Drops startup file
Executes dropped EXE
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/6ba0c4fb-2965-45d9-963d-7bdc2bff9409
Unpacked files
SH256 hash:
728546301b7008b5a1fb3aea761701debc5b249e959baa0d09cfba30be90e012
MD5 hash:
bc352a63e8fb9e42a955285345025e75
SHA1 hash:
509d30a5dd51d5305962caeea73d6a5015180b78
Link:
https://www.unpac.me/results/9f977c93-e916-43e8-a8da-1ff22d37a556/
SH256 hash:
beb083916c0287752dc4823c0cea4b443b7e710587159ed6dd07592b12d743dd
MD5 hash:
4c4d1a12304ba2cb73a4ce110e695c25
SHA1 hash:
5638d057170c35e15dac32f2fbe700d6157794b3
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/9f977c93-e916-43e8-a8da-1ff22d37a556/
Parent samples :
bef94433d26c99a11e7a4408ce031bc5edf77d7aa8286df6aecb695bdd496563
a39476c2cb94736d32c3d849fe5117691ee71239767ccc506c3c93375f5dbf74
869a2ecf27d975c9c063cb74e2a1ce3aab6ce93b80a80ef844608cc75a87b41c
ae9e7502a23c5e541559ffb7e28af15e4e9eccabd451f5c916d86496968a0eec
728546301b7008b5a1fb3aea761701debc5b249e959baa0d09cfba30be90e012
6e1b565d73adc5f58f68656987b62e2bc51c217acc496dab3f5c2ce4df629e1c
65f8634f1ce02e29a2ab4cbf72194b785b9f94533c0240ca79b01bbc0469bc0a
a5f78735653da4c3d43c54946a6a9bea1e595b66081284f965c8d73f29d65bc4
2d1ebc58876a03dbf8c42cf167166654747752d66698d66231f1a3ebc8308c59
a1c4a7b9c7c6ad8ca5a07a0c7c9db49ae6b3df603b60590dda358faedff91595
d8eb4dc0afc0a97e464235870b3519f9947585194a1f9ef62763f5b04d51656c
b3c60e8722e0c7d3f9d14d88403d435d48ab1f725bcfe72d6e33c2a56f585fda
63308ebe63a055b8423e2483c48a847f0e47c61a6a8eef5f4bb30d206a458ccd
SH256 hash:
8cc9dc2e10902f45f7c98f1c365871795f0a6f3f44fafab82c68e1725b9d39eb
MD5 hash:
a5ca2815e7f0d0bb95b5f18c56c454a2
SHA1 hash:
88e63051d922be0a64d0538adcdf20db3b5633d1
Link:
https://www.unpac.me/results/9f977c93-e916-43e8-a8da-1ff22d37a556/
SH256 hash:
b91bca298ce9d6785c2de71250ff6ea3fafc81ff5930f740a6f0570c82d07944
MD5 hash:
1238f4e47c9192bf34e35d6e7b998b3f
SHA1 hash:
c1ced61b57ec9994592656c1099bd09b3af4c02c
Detections:
AutoIT_Compiled
Create hunting rule
Link:
https://www.unpac.me/results/9f977c93-e916-43e8-a8da-1ff22d37a556/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/728546301b70/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/728546301b7008b5a1fb3aea761701debc5b249e959baa0d09cfba30be90e012

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.

Malspam

Formbook

Executable exe 728546301b7008b5a1fb3aea761701debc5b249e959baa0d09cfba30be90e012

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/41456/

Comments