MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f1eb49df840dc35628c04e0de9e85385b2e05440ca66c38f72135418db279b7d. 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 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f1eb49df840dc35628c04e0de9e85385b2e05440ca66c38f72135418db279b7d
SHA3-384 hash: 84a5cf072cdfc6beb9186c92ac37c95f5acad23c508fe2270faa398867f23e3f1b28cb88f2766061a536a287bbc7ce93
SHA1 hash: b9376831a0c8c9966b07ce9ba412f0cabfa0b560
MD5 hash: 8ec449db938269a4e7642f31781eff5c
humanhash: mockingbird-london-oranges-earth
File name:ca0b238666d773cbe4ba33a83a233f385fa5de90f7b9aa0a75cc6283833fe169
Download: download sample
Signature Formbook
Create hunting rule
File size:1'229'312 bytes
First seen:2025-12-08 16:04:00 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash c1ce208b1192bfcf652c179f34f034d3 (17 x Formbook, 5 x AgentTesla, 3 x a310Logger)
ssdeep 24576:v5EmXFtKaL4/oFe5T9yyXYfP1MAXDzhHiZ30O3gjZxp5gdeU8O:vPVt/LZeJbInGizhCZ3TgdH54
TLSH T13345BF0273D1D062FFAB92334B56F6115BBC79260123A62F13981D7ABE701B1563E7A3
TrID 50.4% (.EXE) Win32 EXE Yoda's Crypter (26569/9/4)
19.9% (.EXE) Win64 Executable (generic) (10522/11/4)
9.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.5% (.EXE) Win32 Executable (generic) (4504/4/1)
3.8% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter abuse_ch
Tags:exe FormBook upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 ca0b238666d773cbe4ba33a83a233f385fa5de90f7b9aa0a75cc6283833fe169
File size (compressed) :722'944 bytes
File size (de-compressed) :1'229'312 bytes
Format:win32/pe
Packed file: ca0b238666d773cbe4ba33a83a233f385fa5de90f7b9aa0a75cc6283833fe169

Intelligence

File Origin
# of uploads :
1
# of downloads :
86
Origin country :
NL NL
Vendor Threat Intelligence
Malware configuration found for:
AutoIt
Details
AutoIt
extracted scripts and files
Link:
https://research.acce.ciphertechsolutions.com/results/8027b5d4-87f4-49ae-a56c-4846d282618b/
Malware family:
n/a
ID:
1
File name:
_f1eb49df840dc35628c04e0de9e85385b2e05440ca66c38f72135418db279b7d.exe
Verdict:
No threats detected
Analysis date:
2025-12-08 17:02:20 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/e88b93ad-5cc5-4d26-80ed-777b974ad004

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/43814/
Detection(s):
SecuriteInfo.com.Win32.Trojan.Agent.35E5V6.UNOFFICIAL
Create hunting rule

PUA.Win.Packer.Embedpe-3
Create hunting rule

PUA.Win.Packer.AcprotectUltraprotect-1
Create hunting rule

Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6936f786881313558a2b9d90
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:
Malicious
Labled as:
Lazy.Generic
Link:
https://www.hybrid-analysis.com/sample/f1eb49df840dc35628c04e0de9e85385b2e05440ca66c38f72135418db279b7d
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-12-08T14:41:00Z UTC
Last seen:
2025-12-09T19:39:00Z UTC
Hits:
~100
Detections:
Trojan-Dropper.Win32.Dorifel.sbd Trojan.Win32.Strab.aaey PDM:Trojan.Win32.Generic Trojan.Win32.Strab.sb Trojan.Win32.Inject.sb Trojan.Win32.Auzenpak.sb Trojan.Win32.Agent.sb Trojan-Spy.Noon.HTTP.ServerRequest Backdoor.Agent.HTTP.C&C Trojan-Spy.Win32.Noon.sb Trojan.Win32.Zenpak.sb Trojan-PSW.Win32.Stealer.sb
Link:
https://opentip.kaspersky.com/f1eb49df840dc35628c04e0de9e85385b2e05440ca66c38f72135418db279b7d/results?tab=lookup
Gathering data
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1828952
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Binary is likely a compiled AutoIt script file
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: 1828952 Sample: ca0b238666d773cbe4ba33a83a2... Startdate: 08/12/2025 Architecture: WINDOWS Score: 100 26 www.zkoraclecloud.xyz 2->26 28 www.zorani.live 2->28 30 10 other IPs or domains 2->30 46 Suricata IDS alerts for network traffic 2->46 48 Antivirus detection for URL or domain 2->48 50 Antivirus / Scanner detection for submitted sample 2->50 54 4 other signatures 2->54 10 ca0b238666d773cbe4ba33a83a233f385fa5de90f7b9aa0a75cc6283833fe169.exe 4 2->10         started        signatures3 52 Performs DNS queries to domains with low reputation 26->52 process4 signatures5 56 Binary is likely a compiled AutoIt script file 10->56 58 Writes to foreign memory regions 10->58 60 Maps a DLL or memory area into another process 10->60 62 Switches to a custom stack to bypass stack traces 10->62 13 svchost.exe 10->13         started        process6 signatures7 64 Maps a DLL or memory area into another process 13->64 66 Unusual module load detection (module proxying) 13->66 16 gL49GFIddyDjSt.exe 13->16 injected process8 process9 18 SecEdit.exe 13 16->18         started        signatures10 38 Tries to steal Mail credentials (via file / registry access) 18->38 40 Tries to harvest and steal browser information (history, passwords, etc) 18->40 42 Modifies the context of a thread in another process (thread injection) 18->42 44 4 other signatures 18->44 21 uLcVqtgBej5T.exe 18->21 injected 24 firefox.exe 18->24         started        process11 dnsIp12 32 edge.gycpi.b.yahoodns.net 209.73.179.247, 49729, 49730, 49731 YAHOO-SP1US United States 21->32 34 www.zen-saiya.com 163.44.185.191, 49712, 49713, 49714 INTERQGMOInternetIncJP Japan 21->34 36 6 other IPs or domains 21->36
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f1eb49df840dc35628c04e0de9e85385b2e05440ca66c38f72135418db279b7d
Verdict:
Malware
YARA:
7 match(es)
Tags:
AutoIt Decompiled Executable PE (Portable Executable) PE File Layout Suspect Win 32 Exe x86
Link:
https://app.malva.re/file/8ec449db938269a4e7642f31781eff5c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f1eb49df840dc35628c04e0de9e85385b2e05440ca66c38f72135418db279b7d/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/f1eb49df840dc35628c04e0de9e85385b2e05440ca66c38f72135418db279b7d
Threat name:
Win32.Malware.Heuristic
Create hunting rule
Status:
Malicious
First seen:
2025-12-08 16:04:25 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
21 of 24 (87.50%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6hvutx4ebxbvmkgajyg6t2ctqwzoavcazjtmhd3scnkbrwzhtn6q._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/251208-th5kyafz9b/
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
Formbook payload
Formbook
Formbook family
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/688ca549-543e-4198-abda-f43c069ef115
Unpacked files
SH256 hash:
f1eb49df840dc35628c04e0de9e85385b2e05440ca66c38f72135418db279b7d
MD5 hash:
8ec449db938269a4e7642f31781eff5c
SHA1 hash:
b9376831a0c8c9966b07ce9ba412f0cabfa0b560
Detections:
AutoIT_Compiled
Create hunting rule
Link:
https://www.unpac.me/results/8f3f28ee-a755-43d9-9527-3eb2f7878767/
Parent samples :
ca0b238666d773cbe4ba33a83a233f385fa5de90f7b9aa0a75cc6283833fe169
f1eb49df840dc35628c04e0de9e85385b2e05440ca66c38f72135418db279b7d
SH256 hash:
80858ac79c0b8d117c58bf3bae85004fded91c812dd684274a9a7349730d9630
MD5 hash:
2efeda40bedf4271be629571de4798de
SHA1 hash:
67fe925769506d614f3c8d201f10cf44bc4b547e
Link:
https://www.unpac.me/results/8f3f28ee-a755-43d9-9527-3eb2f7878767/
SH256 hash:
909ca86f2920ea2d12b27f1368cdb8584dc542fb3bdc8758121512a9fbff4888
MD5 hash:
b4d7a507be074520de4e0af95615cc5a
SHA1 hash:
50b16eafd7e45dbe5dddda393b0a7694fcf54646
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/8f3f28ee-a755-43d9-9527-3eb2f7878767/
Parent samples :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 family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f1eb49df840d/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f1eb49df840dc35628c04e0de9e85385b2e05440ca66c38f72135418db279b7d

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:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
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: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.

Formbook

Executable exe ca0b238666d773cbe4ba33a83a233f385fa5de90f7b9aa0a75cc6283833fe169

Formbook

Executable exe f1eb49df840dc35628c04e0de9e85385b2e05440ca66c38f72135418db279b7d

(this sample)

  
Dropped by
SHA256 ca0b238666d773cbe4ba33a83a233f385fa5de90f7b9aa0a75cc6283833fe169
  
Dropped by
MD5 abf477ba4160cf39fa65a0962f7bba3f
Cape
Cape
https://www.capesandbox.com/analysis/43814/

Comments