MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 451760c99be8a959869ac8736b9550013fbb5c925763a8d707e6a05f3c652dd3. 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: 7


Intelligence 7 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 451760c99be8a959869ac8736b9550013fbb5c925763a8d707e6a05f3c652dd3
SHA3-384 hash: 29ca240f05ffdac33c672af872d10e511980a70fd3ba0929b47334d4c1f6d49d6fcf51d93676d3eb81b06bcbd3437005
SHA1 hash: 7506fb95a37029f7c38ab6bbd0c2e91b11bb50e2
MD5 hash: 484c495a42f4b0d4d59bb68916596061
humanhash: leopard-arizona-alabama-river
File name:Factura de proforma.exe
Download: download sample
Signature FormBook
Create hunting rule
File size:387'584 bytes
First seen:2020-06-26 06:11:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:rMJvS7o3rp+WYLwKDK/Ciyz8XaAEba+q5zwN6J/l4gy3jsYIln5g:r4vS7oYWYMp/fX38rq5eutgjst
Threatray 4'961 similar samples on MalwareBazaar
TLSH DE846B42724CD6CEEC3E0EF8E109B27A83677CB05692D61167E530DE25A53770E0AED9
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing FormBook:

HELO: fre.freespirittours.ge
Sending IP: 192.254.140.61
From: executive@freespirittours.net
Subject: Re : Factura de proforma
Attachment: Factura de proforma.rar (contains "Factura de proforma.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
87
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/14593/
Detection(s):
SecuriteInfo.com.Generic.mg.f75bcb16ae21df7e.11718.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/451760c99be8a959869ac8736b9550013fbb5c925763a8d707e6a05f3c652dd3/
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2020-06-26 06:13:05 UTC
AV detection:
24 of 31 (77.42%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=iulwbsm35cuvtbu2zbzwxfkqae73wxesk5r2rvyh42qf6pdffxjq._file
Verdict:
malicious
Similar samples:
04cf53b12dd0bbbd302d1375a761f1bf8de0814022ed03dc270920d2fb1cb670
FormBook
1b176bd6e930704b7825d1e4010b3ef70fe135c0a5f457b56c6652df0ec10350
FormBook
4f7cbe28e76cbbcd0b554381e0dddc42d29f7ef59716101825addb74a10011fe
FormBook
68859b39bf8e3c300407069ca7a4b0928fe552a54b55f57cadbe9184d4e23bdd
FormBook
6b0901dc018ef4c90bc7b0dde5278b696a579a818a9ee5cbddb271eecca1b6fc
FormBook
8dd103e61c00d73a45a6f3ada98377db7279e0421a1319bac86b78a081c39d4d
FormBook
b4d253fd7bee0ac5be341956d6dcce635957111e207bfee5af0fa9067b066bcb
FormBook
b8d388272c192d0a4e73fc27d276da94a582cf48328f8884f1e0613170010b5d
FormBook
df5986fcb5b6e473947583262fe71a48b644b13c42a2a57cbff970905baf2001
FormBook
e11539733ba2b2a3e51e5c03f171566c58900d2b5e41118c6a495d7dbacb2f56
FormBook
+ 4'951 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  6/10
Tags:
evasion trojan
Link:
https://tria.ge/reports/200626-cg7m19bdsa/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious use of SendNotifyMessage
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SetThreadContext
Checks whether UAC is enabled
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
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
Rule name:win_formbook_g0
Create hunting rule
Author:Slavo Greminger, SWITCH-CERT

File information

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

Malspam

FormBook

rar 125de90eb3a08ed601f256d17f94fa2d937972ba3ef671c070ac8e1024448526

FormBook

Executable exe 451760c99be8a959869ac8736b9550013fbb5c925763a8d707e6a05f3c652dd3

(this sample)

  
Dropped by
MD5 b2264f91f22b1de7c5d274dfee4cb472
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/14593/
  
Dropped by
SHA256 125de90eb3a08ed601f256d17f94fa2d937972ba3ef671c070ac8e1024448526

Comments