MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3b54bdf77855d975a3653b1c8c34fdba0c8a3d97853d3d4e1a62a1fc3be7b1bc. 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 11 File information Comments

SHA256 hash: 3b54bdf77855d975a3653b1c8c34fdba0c8a3d97853d3d4e1a62a1fc3be7b1bc
SHA3-384 hash: b33164c8f441d38976b82b6dd99d705a7c5a6d3f5397a18155ec62eee6d0246df6e21bf72720b47213f4d146c0fa3329
SHA1 hash: aec5e78058bd8b2aa2f9675ddeb5c85326e186c5
MD5 hash: 526442c384589a56832965d6f187d4c1
humanhash: one-california-uniform-white
File name:3b54bdf77855d975a3653b1c8c34fdba0c8a3d97853d3d4e1a62a1fc3be7b1bc
Download: download sample
Signature Formbook
File size:185'856 bytes
First seen:2024-02-05 08:32:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 3072:ih5MEfXo5Fwd38wi8kHaJ47Ixp00CABkW+ALRYpnz:ixFR8b8QaJ47ep0BGkW+f
TLSH T1A704AE36D602C070F2B215B5B66D1B7B883D0E357294A4EAA3E12AE05FE48D5F53931F
Reporter adrian__luca
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
270
Origin country :
HU HU
Vendor Threat Intelligence
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
config-extracted formbook formbook packed
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Machine Learning detection for sample
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1386623 Sample: qUGJZ4Ih2v.exe Startdate: 05/02/2024 Architecture: WINDOWS Score: 100 24 www.8x101n.xyz 2->24 26 www.whatsapp1.autos 2->26 28 13 other IPs or domains 2->28 42 Multi AV Scanner detection for domain / URL 2->42 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 50 7 other signatures 2->50 10 qUGJZ4Ih2v.exe 2->10         started        signatures3 48 Performs DNS queries to domains with low reputation 24->48 process4 signatures5 52 Modifies the context of a thread in another process (thread injection) 10->52 54 Maps a DLL or memory area into another process 10->54 56 Sample uses process hollowing technique 10->56 58 2 other signatures 10->58 13 explorer.exe 72 7 10->13 injected process6 dnsIp7 30 www.amiciperlacoda.com 173.239.5.6, 49708, 80 WEBAIR-INTERNETUS United States 13->30 32 tryscriptify.com 15.197.142.173, 49710, 80 TANDEMUS United States 13->32 34 3 other IPs or domains 13->34 60 System process connects to network (likely due to code injection or exploit) 13->60 17 WWAHost.exe 13->17         started        signatures8 process9 signatures10 36 Modifies the context of a thread in another process (thread injection) 17->36 38 Maps a DLL or memory area into another process 17->38 40 Tries to detect virtualization through RDTSC time measurements 17->40 20 cmd.exe 1 17->20         started        process11 process12 22 conhost.exe 20->22         started       
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2024-02-05 08:33:10 UTC
File Type:
PE (Exe)
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:gy14 rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Unpacked files
SH256 hash:
3b54bdf77855d975a3653b1c8c34fdba0c8a3d97853d3d4e1a62a1fc3be7b1bc
MD5 hash:
526442c384589a56832965d6f187d4c1
SHA1 hash:
aec5e78058bd8b2aa2f9675ddeb5c85326e186c5
Detections:
FormBook win_formbook_w0 win_formbook_auto win_formbook_g0 Formbook
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:Formbook
Author:kevoreilly
Description:Formbook Payload
Rule name:maldoc_getEIP_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:meth_get_eip
Author:Willi Ballenthin
Rule name:meth_stackstrings
Author:Willi Ballenthin
Rule name:pe_no_import_table
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:Windows_Trojan_Formbook
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Author:Elastic Security
Rule name:win_formbook_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
Rule name:win_formbook_w0
Author:@malgamy12

File information


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

Malspam

Formbook

Executable exe 3b54bdf77855d975a3653b1c8c34fdba0c8a3d97853d3d4e1a62a1fc3be7b1bc

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments