MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b2858fdb42403adfde93d5e641c9ab6607d35a81ea083305385c2182964bc796. 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: b2858fdb42403adfde93d5e641c9ab6607d35a81ea083305385c2182964bc796
SHA3-384 hash: 71f6963aba5a990baaddcc2e39bb4dee3207b6439ecd15eaca2c87235aeec260c8fd02c88ad15e5dd96634e25312de20
SHA1 hash: eab71b5e9b50cd268a484f155c3cd8494d759b35
MD5 hash: da4246b34522649215d8975ba084d9af
humanhash: mars-eight-tennessee-football
File name:EXW NOTIFY DOCS.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'149'440 bytes
First seen:2025-10-09 08:46:34 UTC
Last seen:2025-11-06 10:11:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 91d07a5e22681e70764519ae943a5883 (93 x Formbook, 14 x RemcosRAT, 11 x AgentTesla)
ssdeep 24576:jtb20pkaCqT5TBWgNQ7aT02v+sowi/3xr9L0aMhH6A:gVg5tQ7aT3c/d9Iz5
Threatray 34 similar samples on MalwareBazaar
TLSH T1F835CF1373DE8361C3B25273BA65B701BEBF782506A5F56B2FD4093DE820122525EA73
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 cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
115
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
EXW NOTIFY DOCS.exe
Verdict:
No threats detected
Analysis date:
2025-10-09 08:48:45 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/6a0b6b6d-fc4d-409f-a1e2-b12acf716555

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/31235/
Detection(s):
SecuriteInfo.com.PSW.Agent.BORA.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68e77690277c2bd8bc5e3dbe
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 autoit compiled-script fingerprint keylogger microsoft_visual_cc obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/68e7769ef377ab231054f67e/reports/cd627c82-5298-497c-b5fe-18c1c97e6c44/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/b2858fdb42403adfde93d5e641c9ab6607d35a81ea083305385c2182964bc796
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-09T00:46:00Z UTC
Last seen:
2025-10-11T07:04:00Z UTC
Hits:
~1000
Detections:
Trojan-Spy.Noon.HTTP.ServerRequest Trojan.Win32.Agent.sb Trojan.Win32.Strab.sb Trojan-Spy.Win32.Noon.bmzk Trojan-PSW.Win32.Stealer.sb Trojan-Dropper.Win32.Dorifel.sbd PDM:Trojan.Win32.Generic Backdoor.Agent.HTTP.C&C Trojan-Spy.Win32.Noon.sb Trojan.Win32.Inject.sb
Link:
https://opentip.kaspersky.com/b2858fdb42403adfde93d5e641c9ab6607d35a81ea083305385c2182964bc796/results?tab=lookup
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d2f54a0f-c7c1-4ef7-88c2-b307ee76368a
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1791977
Signature
Binary is likely a compiled AutoIt script file
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 submitted file
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: 1791977 Sample: EXW NOTIFY DOCS.exe Startdate: 09/10/2025 Architecture: WINDOWS Score: 100 26 www.magmadokum.com 2->26 28 www.kasegitai.tokyo 2->28 30 5 other IPs or domains 2->30 44 Suricata IDS alerts for network traffic 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Multi AV Scanner detection for submitted file 2->48 50 3 other signatures 2->50 10 EXW NOTIFY DOCS.exe 4 2->10         started        signatures3 process4 signatures5 52 Binary is likely a compiled AutoIt script file 10->52 54 Writes to foreign memory regions 10->54 56 Maps a DLL or memory area into another process 10->56 13 svchost.exe 10->13         started        process6 signatures7 58 Maps a DLL or memory area into another process 13->58 16 xAUTpnfqe.exe 13->16 injected process8 process9 18 netbtugc.exe 13 16->18         started        signatures10 36 Tries to steal Mail credentials (via file / registry access) 18->36 38 Tries to harvest and steal browser information (history, passwords, etc) 18->38 40 Modifies the context of a thread in another process (thread injection) 18->40 42 3 other signatures 18->42 21 SKZuHegXupuJ6Hg8wvIfu.exe 18->21 injected 24 firefox.exe 18->24         started        process11 dnsIp12 32 www.goldenjade-travel.com 116.50.37.244, 49692, 80 DONGFONG-TWDongFongTechnologyCoLtdTW Taiwan; Republic of China (ROC) 21->32 34 natroredirect.natrocdn.com 85.159.66.93, 49694, 49695, 49696 CIZGITR Turkey 21->34
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b2858fdb42403adfde93d5e641c9ab6607d35a81ea083305385c2182964bc796
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/da4246b34522649215d8975ba084d9af
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b2858fdb42403adfde93d5e641c9ab6607d35a81ea083305385c2182964bc796/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/b2858fdb42403adfde93d5e641c9ab6607d35a81ea083305385c2182964bc796
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-10-09 08:46:38 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wkcy7w2cia5n7xut2xtedsnlmyd5gwub5iedgbjylqqyffsly6la._file
Verdict:
malicious
Label(s):
autoit
Create hunting rule
formbook
Create hunting rule
Similar samples:
01737d303e26dbb7b5dee87076382b4d81162ae73bf4faaeaf0bf29d0c6fc66d
Formbook
05da500934c4ab1b7bbc5e366f571bfe47d99a24efb4419966029f6fb8732de2
Formbook
17269b07f8f2f16e1d2139282f27e99834c34ed76548851a229bbe59832cb552
Formbook
659cfb359d2e9890f3488d6dd65852151f9a3d6bdc8c27fd45e8a78b3489a354
Formbook
6a11ab33aa16d2d8ba08cb3c6edb5e0613c1d459287261ecd907f9359068cbc8
Formbook
6f8485b5acfe2794af2e6865b0f29389b7484b531aa925a7d496a80606cdb372
Formbook
89298940d17702803fc97b47258c639f223ddebd6368a0d946647cb79acacc2e
Formbook
90b33d8252b9470d19ac4aff278e6470c04bafe0a04cf143b61880257ca13157
Formbook
a21182bf32d320deebafbf52f06c370fe3762ec55793e09df10ce9e27bfe799a
Formbook
affbb0db85505a477fad583411e0361f0502ef4d9c46059da31ca85eb0e0b5d6
Formbook
error
Formbook
+ 24 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Link:
https://tria.ge/reports/251009-kp3kgswlx3/
Behaviour
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
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/a8e62f24-51b4-4bdc-9339-ab500e442c8e
Unpacked files
SH256 hash:
b2858fdb42403adfde93d5e641c9ab6607d35a81ea083305385c2182964bc796
MD5 hash:
da4246b34522649215d8975ba084d9af
SHA1 hash:
eab71b5e9b50cd268a484f155c3cd8494d759b35
Link:
https://www.unpac.me/results/a4232a27-025f-45fd-af62-fe36e1642879/
SH256 hash:
95d4e6d867da09d9fb2302ef94d540644204068b149018da9258cc36397ffbd2
MD5 hash:
136616fdb1e67935a6142086452e8eef
SHA1 hash:
c14840db3410d29d1a16822b917dacf1860b98eb
Link:
https://www.unpac.me/results/a4232a27-025f-45fd-af62-fe36e1642879/
SH256 hash:
b44d6f57aeb656f27afc88f54c97c618d4daa697ee27c10e1887dcb5dd83eea0
MD5 hash:
c3735d448f0d4d3db6fe20d7ad033c84
SHA1 hash:
2edfaa0ec53b3c5459a40bd9d772b25bc6ce4e49
Link:
https://www.unpac.me/results/a4232a27-025f-45fd-af62-fe36e1642879/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b2858fdb4240/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/b2858fdb42403adfde93d5e641c9ab6607d35a81ea083305385c2182964bc796

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: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_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:Windows_Generic_Threat_aeaeb5cf
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/formbook-adopts-cab-less-approach
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12
Rule name:YahLover
Create hunting rule
Author:Kevin Falcoz
Description:YahLover

File information

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

Malspam

Formbook

zip db27e6bdd0c434869a8ac2139fb22fed5cf649a86b6777e541cccb9271b310df

Formbook

Executable exe b2858fdb42403adfde93d5e641c9ab6607d35a81ea083305385c2182964bc796

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 db27e6bdd0c434869a8ac2139fb22fed5cf649a86b6777e541cccb9271b310df
Cape
Cape
https://www.capesandbox.com/analysis/31235/
  
Dropped by
MD5 ab86829729533bdb50065e0042258b9f

Comments