MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fdec4f38d4c07df570111f70f1fb8a8f778053b390eba076cf603866bafbb410. 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: 15


Intelligence 15 IOCs YARA 22 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fdec4f38d4c07df570111f70f1fb8a8f778053b390eba076cf603866bafbb410
SHA3-384 hash: 3fc9d9351bf7fab28c76d2ed7809b49ab8f70c158a8b9afcc1d240e3d4ff3b6725cecc4f4cd0743e0f929b098983658b
SHA1 hash: bd22768a87f94ecbb8c8d8bb69cddd8fabbcbc84
MD5 hash: e92431825dc08c4a2b1a564e93d37f4c
humanhash: wyoming-alabama-robert-berlin
File name:1744820704b6b79574a3969c126379cc4438028912cfbfcd5e03aab194bfa66a9547dd6c24369.dat-decoded
Download: download sample
Signature Formbook
Create hunting rule
File size:1'787'392 bytes
First seen:2025-04-16 16:25:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash c08ab444024a90acb5ef9f575fbd3c2e (2 x RemcosRAT, 1 x Formbook)
ssdeep 24576:7QISkXjz1IJqJ2X0M624f0kzfJUUYUUU2s4na/nqBagOnuNCFPcB+a4JV8Lj:cdeP1ImM61hUUYUUUsYgOH70Lj
TLSH T131859D15A7B2DC2FC2611477C9BEBBD4BC1D2D280A227442E5D8BD28DEF5660A737C42
TrID 38.0% (.EXE) Win32 Executable Delphi generic (14182/79/4)
28.2% (.EXE) Win64 Executable (generic) (10522/11/4)
12.0% (.EXE) Win32 Executable (generic) (4504/4/1)
5.5% (.EXE) Win16/32 Executable Delphi generic (2072/23)
5.4% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
dhash icon 07d0d8dcd4d8d007 (8 x RemcosRAT, 7 x FormBook, 2 x AgentTesla)
Reporter abuse_ch
Tags:base64-decoded exe FormBook


Avatar
abuse_ch
Malware dropped as base64 encoded payload

Intelligence

File Origin
# of uploads :
1
# of downloads :
474
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
456786545_pdf.LNK
Verdict:
Malicious activity
Analysis date:
2025-04-16 16:08:03 UTC
Tags:
delphi
Link:
https://app.any.run/tasks/4b004c98-54c6-4389-8067-b4ea88f6fadc

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/2524/
Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67ffde74954c9c53de0bf5fc
Tags:
delphi emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Creating a file
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a process from a recently created file
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context borland_delphi exploit fingerprint keylogger packed packed packer_detected remcos
Link:
https://www.filescan.io/uploads/67ffda2190767142c3d7799a/reports/a660917f-56ed-47ac-9a00-1c73aef0d48c/overview
Verdict:
Malicious
Labled as:
Zusy.Generic
Link:
https://www.hybrid-analysis.com/sample/fdec4f38d4c07df570111f70f1fb8a8f778053b390eba076cf603866bafbb410
Result
Verdict:
MALICIOUS
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0425cb8a-5780-4dd1-ba1d-bf47a16eb855
Result
Threat name:
DBatLoader, FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1666596
Signature
Allocates many large memory junks
Drops or copies cmd.exe with a different name (likely to bypass HIPS)
Drops PE files to the user root directory
Drops PE files with a suspicious file extension
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for submitted file
Sigma detected: DLL Search Order Hijackig Via Additional Space in Path
Sigma detected: Execution from Suspicious Folder
Yara detected DBatLoader
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1666596 Sample: 1744820704b6b79574a3969c126... Startdate: 16/04/2025 Architecture: WINDOWS Score: 100 31 pki-goog.l.google.com 2->31 33 c.pki.goog 2->33 41 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 Yara detected FormBook 2->45 47 4 other signatures 2->47 8 1744820704b6b79574a3969c126379cc4438028912cfbfcd5e03aab194bfa66a9547dd6c24369.dat-decoded.exe 5 2->8         started        signatures3 process4 signatures5 49 Allocates many large memory junks 8->49 11 cmd.exe 1 8->11         started        13 cmd.exe 1 8->13         started        15 WerFault.exe 22 16 8->15         started        process6 process7 17 esentutl.exe 2 11->17         started        21 conhost.exe 11->21         started        23 alpha.pif 2 11->23         started        25 alpha.pif 2 11->25         started        27 conhost.exe 13->27         started        file8 29 C:\Users\Public\alpha.pif, PE32 17->29 dropped 35 Drops PE files to the user root directory 17->35 37 Drops PE files with a suspicious file extension 17->37 39 Drops or copies cmd.exe with a different name (likely to bypass HIPS) 17->39 signatures9
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/fdec4f38d4c07df570111f70f1fb8a8f778053b390eba076cf603866bafbb410
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/fdec4f38d4c07df570111f70f1fb8a8f778053b390eba076cf603866bafbb410/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2025-04-16 12:39:15 UTC
File Type:
PE (Exe)
Extracted files:
85
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7xwe6oguyb67k4ard5ypd64kr53yau5tsdv2a5wpma4gnox3wqia._file
Verdict:
malicious
Label(s):
dbatloader
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
modiloader
Create hunting rule
Score:
  10/10
Tags:
family:modiloader discovery trojan
Link:
https://tria.ge/reports/250416-tw1txaxmw4/
Behaviour
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Executes dropped EXE
ModiLoader Second Stage
ModiLoader, DBatLoader
Modiloader family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/c6773d6f-0f6b-457e-af91-3c625e01d8f2
Unpacked files
SH256 hash:
fdec4f38d4c07df570111f70f1fb8a8f778053b390eba076cf603866bafbb410
MD5 hash:
e92431825dc08c4a2b1a564e93d37f4c
SHA1 hash:
bd22768a87f94ecbb8c8d8bb69cddd8fabbcbc84
Link:
https://www.unpac.me/results/1f4c9ae6-91c7-4d55-9ce8-82fb3ed25dbb/
SH256 hash:
7bcdc2e607abc65ef93afd009c3048970d9e8d1c2a18fc571562396b13ebb301
MD5 hash:
c116d3604ceafe7057d77ff27552c215
SHA1 hash:
452b14432fb5758b46f2897aeccd89f7c82a727d
Link:
https://www.unpac.me/results/1f4c9ae6-91c7-4d55-9ce8-82fb3ed25dbb/
SH256 hash:
126c78f26a4729e1aa3b62af2e345a06f1d2c506adfec6df40205d8f8ff3254c
MD5 hash:
6b0a57fc4f37799d958f448b9d772cae
SHA1 hash:
9527de1390004b6b317b1e154d535960f804e1d9
Detections:
Typical_Malware_String_Transforms
Create hunting rule
Link:
https://www.unpac.me/results/1f4c9ae6-91c7-4d55-9ce8-82fb3ed25dbb/
Parent samples :
cfecc683911218dde9c607fc0365c31c3fa5e4f7561cb7a68bc99c96c68bf0a4
fdec4f38d4c07df570111f70f1fb8a8f778053b390eba076cf603866bafbb410
Please note that we are no longer able to provide a coverage score for Virus Total.

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:BobSoftMiniDelphiBoBBobSoft
Create hunting rule
Author:malware-lu
Rule name:Borland
Create hunting rule
Author:malware-lu
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:Formbook
Create hunting rule
Author:kevoreilly
Description:Formbook Payload
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_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: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:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Typical_Malware_String_Transforms
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Typical_Malware_String_Transforms_RID3473
Create hunting rule
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Windows_Generic_Threat_d7b57912
Create hunting rule
Author:Elastic Security

File information

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

b6b79574a3969c126379cc4438028912cfbfcd5e03aab194bfa66a9547dd6c24

Formbook

Executable exe fdec4f38d4c07df570111f70f1fb8a8f778053b390eba076cf603866bafbb410

(this sample)

  
Dropped by
SHA256 b6b79574a3969c126379cc4438028912cfbfcd5e03aab194bfa66a9547dd6c24
  
Dropped by
MD5 abb771b8626c37a4ea8386b1f7bd0190
Cape
Cape
https://www.capesandbox.com/analysis/2524/
  
URLhaus
https://urlhaus.abuse.ch/url/3513435/
  
Delivery method
Distributed via web download

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and Threadskernel32.dll::CloseHandle
kernel32.dll::CreateThread
WIN_BASE_APIUses Win Base APIkernel32.dll::LoadLibraryExA
kernel32.dll::LoadLibraryA
kernel32.dll::GetStartupInfoA
kernel32.dll::GetDiskFreeSpaceA
kernel32.dll::GetCommandLineA
WIN_BASE_IO_APICan Create Fileskernel32.dll::CreateFileA
kernel32.dll::FindFirstFileA
version.dll::GetFileVersionInfoSizeA
version.dll::GetFileVersionInfoA
WIN_REG_APICan Manipulate Windows Registryadvapi32.dll::RegOpenKeyExA
advapi32.dll::RegQueryValueExA
WIN_USER_APIPerforms GUI Actionsuser32.dll::ActivateKeyboardLayout
user32.dll::CreateMenu
user32.dll::FindWindowA
user32.dll::PeekMessageA
user32.dll::PeekMessageW
user32.dll::CreateWindowExA

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