MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0fda5f40e7752da1cdd8b8ae961258251b78f421dd2a089a7184aa33b83db06c. 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: 13


Intelligence 13 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0fda5f40e7752da1cdd8b8ae961258251b78f421dd2a089a7184aa33b83db06c
SHA3-384 hash: 2242c7d8af20f961c965b2f786feb4fc1105595eaeebd7e536a7871ed9703f4c50d7a915df1d9bab0a2ef2de8594e228
SHA1 hash: d0f43a0a26dbe8900a7ff684870e8c1ef424286d
MD5 hash: cf3268c419da49574f98a9a36d263165
humanhash: steak-wyoming-stairway-double
File name:begin.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:2'105'712 bytes
First seen:2025-03-07 16:14:46 UTC
Last seen:2025-03-07 17:07:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'119 x AgentTesla, 20'127 x Formbook, 12'359 x SnakeKeylogger)
ssdeep 24576:doQf9VJm+r8bwjXO2tBUVFuAlsqKMDr6e5cEzBsMEUahI/KiP0wiPpenk3:doQVV1wURt+VFnMy+8sMO4Klwqb3
Threatray 1 similar samples on MalwareBazaar
TLSH T1E3A5BD043398D08EE7F75E7028A3F1739932FC51B962BA1B65802EE938FE189595D361
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
dhash icon 4faed46979f4eacd (1 x LummaStealer, 1 x Formbook, 1 x Rhadamanthys)
Reporter aachum
Tags:DarkTortilla exe FormBook


Avatar
iamaachum
https://github.com/legendary99999/dfsfdsfdsfds/releases/download/dfsfsdfds/begin.exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
413
Origin country :
ES ES
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
begin.exe
Verdict:
Malicious activity
Analysis date:
2025-03-07 20:55:03 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/866c82f1-83c4-4a1f-b3cc-f438116c21d4

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67cb1cccc8d04e92a4bfcead
Tags:
virus smtp remo
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a window
Launching a process
Creating a file
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
evasive invalid-signature lolbin msiexec obfuscated obfuscated reconnaissance signed vbnet
Link:
https://www.filescan.io/uploads/67cb1b9b3c5f644bd948137e/reports/84aaf645-3af6-46ec-baad-9a1864be144c/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/0fda5f40e7752da1cdd8b8ae961258251b78f421dd2a089a7184aa33b83db06c
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4e86a739-c38a-4594-84c9-b022a5ac3c28
Result
Threat name:
DarkTortilla, FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1632014
Signature
AI detected suspicious PE digital signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found direct / indirect Syscall (likely to bypass EDR)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
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 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 delay execution (extensive OutputDebugStringW loop)
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 AntiVM3
Yara detected DarkTortilla Crypter
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1632014 Sample: begin.exe Startdate: 07/03/2025 Architecture: WINDOWS Score: 100 37 www.micusa.xyz 2->37 39 www.layunin.xyz 2->39 41 www.kdrqcyusevx.info 2->41 47 Suricata IDS alerts for network traffic 2->47 49 Antivirus detection for URL or domain 2->49 51 Antivirus / Scanner detection for submitted sample 2->51 55 6 other signatures 2->55 10 begin.exe 3 2->10         started        signatures3 53 Performs DNS queries to domains with low reputation 39->53 process4 file5 35 C:\Users\user\AppData\Local\...\begin.exe.log, ASCII 10->35 dropped 67 Writes to foreign memory regions 10->67 69 Allocates memory in foreign processes 10->69 71 Tries to delay execution (extensive OutputDebugStringW loop) 10->71 73 3 other signatures 10->73 14 AddInProcess32.exe 10->14         started        17 AddInProcess32.exe 10->17         started        19 AddInProcess32.exe 10->19         started        21 3 other processes 10->21 signatures6 process7 signatures8 75 Maps a DLL or memory area into another process 14->75 23 fMCYiMEFQZmFBs7vgZ5.exe 14->23 injected process9 signatures10 57 Found direct / indirect Syscall (likely to bypass EDR) 23->57 26 comp.exe 13 23->26         started        process11 signatures12 59 Tries to steal Mail credentials (via file / registry access) 26->59 61 Tries to harvest and steal browser information (history, passwords, etc) 26->61 63 Modifies the context of a thread in another process (thread injection) 26->63 65 3 other signatures 26->65 29 fMCYiMEFQZmFBs7vgZ5.exe 26->29 injected 33 firefox.exe 26->33         started        process13 dnsIp14 43 www.kdrqcyusevx.info 104.21.64.1, 49725, 49726, 49727 CLOUDFLARENETUS United States 29->43 45 www.layunin.xyz 13.248.169.48, 49724, 49729, 49730 AMAZON-02US United States 29->45 77 Found direct / indirect Syscall (likely to bypass EDR) 29->77 signatures15
Score:
88%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/0fda5f40e7752da1cdd8b8ae961258251b78f421dd2a089a7184aa33b83db06c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0fda5f40e7752da1cdd8b8ae961258251b78f421dd2a089a7184aa33b83db06c/
Threat name:
Win32.Trojan.CrypterX
Create hunting rule
Status:
Malicious
First seen:
2025-02-24 14:38:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
74
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=b7nf6qhhouw2dtoyxcxjmesyeunxr5bb3uvargtrqsvdhob5wbwa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0fda5f40e7752da1cdd8b8ae961258251b78f421dd2a089a7184aa33b83db06c
Formbook
error
Formbook
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Link:
https://tria.ge/reports/250307-ts814stlz3/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/ec602979-0eaf-4fdc-aac6-0eaa9e534dcb
Unpacked files
SH256 hash:
0fda5f40e7752da1cdd8b8ae961258251b78f421dd2a089a7184aa33b83db06c
MD5 hash:
cf3268c419da49574f98a9a36d263165
SHA1 hash:
d0f43a0a26dbe8900a7ff684870e8c1ef424286d
Link:
https://www.unpac.me/results/e8178ffc-c6c8-4976-aaf8-3807791945df/
SH256 hash:
da4cb91d96214c7134a9e8799fdf241bd6b8103eecd4efb1b8c228ca3c8e7e91
MD5 hash:
9a06e083cd0531927dcd616b9b601ffa
SHA1 hash:
9584f7e1c8ab7be5900762abcaedf20cb92e4ae7
Link:
https://www.unpac.me/results/e8178ffc-c6c8-4976-aaf8-3807791945df/
SH256 hash:
f52a5e61b81d351b7cf03d11dec650ef1ae67360920de8139c2d82f961e0be11
MD5 hash:
57ea940ffaf06b0c9766a62253e11eb7
SHA1 hash:
b39c382bc994da7904e4f8f124b21f0706dc0156
Link:
https://www.unpac.me/results/e8178ffc-c6c8-4976-aaf8-3807791945df/
SH256 hash:
2cb5b8fbcd0994c8371837858c1f6dfe8e0de017e86437c7aee38d710209f10a
MD5 hash:
4f5880d558000b383fbb6efb21100997
SHA1 hash:
d2ceb9140d797b0f4db46a0a02c274e4fe89f349
Link:
https://www.unpac.me/results/e8178ffc-c6c8-4976-aaf8-3807791945df/
SH256 hash:
efe314c5ca44fc34c3979391847027d93817e1f22d00e16240e8eb784377a80c
MD5 hash:
40a448f46e4f35a30aa386b2a54c14a1
SHA1 hash:
ec8f9ceb755094857304c0fbf96699c8392d5b02
Link:
https://www.unpac.me/results/e8178ffc-c6c8-4976-aaf8-3807791945df/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/0fda5f40e775/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/0fda5f40e7752da1cdd8b8ae961258251b78f421dd2a089a7184aa33b83db06c

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
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:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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)

File information

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

Web download

Formbook

Executable exe 0fda5f40e7752da1cdd8b8ae961258251b78f421dd2a089a7184aa33b83db06c

(this sample)

  
Link
https://tria.ge/250307-the1aatkv4/behavioral1
  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3470620/

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_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments