MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 141db63f511b843acf5d8a10f095333482850ed727da867bf39b83694b963ae6. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 141db63f511b843acf5d8a10f095333482850ed727da867bf39b83694b963ae6
SHA3-384 hash: e1d19dd6d96f77ce7ccb7ddd9d3761bfddd9f1c6173b4aa5ef81b4400f4a0f11605a3c289f6e129afc2aa6fee95f71b3
SHA1 hash: c398ff101f7179b08547b853e4cfd2588336623a
MD5 hash: 78d6da2667f155372aff3f610930692f
humanhash: lactose-jig-thirteen-march
File name:uejedf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:847'872 bytes
First seen:2020-07-28 14:30:06 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:yYwutfN7BvQnJ+mpU2H077df9U4h0y+6J6b1X4eLpy3Q:yYwutF7BoJrUjLZ1XyCWA
Threatray 5'098 similar samples on MalwareBazaar
TLSH 13056C3175028034C4762374D87C9ED67EB9AAAA3F558A1F73FA03885E1285F7B2611F
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: slot0.gitesis.com
Sending IP: 104.168.234.145
From: cavallo.antonio@tecsud.it
Subject: Preferred Options Requirement
Attachment: FORM.xlsm

FormBook payload URL:
http://jayantpanke.org/sql/uejedf.exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
84
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/33806/
Detection(s):
Win.Malware.Formbook-7399661-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Launching a process
Launching cmd.exe command interpreter
Creating a file
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/400605
Signature
.NET source code contains very large array initializations
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/141db63f511b843acf5d8a10f095333482850ed727da867bf39b83694b963ae6/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-28 10:14:12 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=cqo3mp2rdocdvt25riipbfjtgsbikdwxe7nim67ttobwss4whlta._file
Verdict:
malicious
Label(s):
netwirerc
Create hunting rule
Similar samples:
2a267254b993ac07447ffa6e2085d2e93f6dafa334c53f65d109d92082d1c350
Formbook
399b70d269ec0e84b66d7de2183866331bff3dd2eff8f32b851927d5944c963a
Formbook
49a63eb1c6fd5d4b22396bb8a8397c3bf124c3f94d104bc2a7a304f4457b4526
Formbook
5e5d88343393a5a1f98a66c8e5967023e200dcf3be81bc0a3c210396156d0fea
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6678b91ffc7bf3cd0b4624d6f8a3a500d666fd023e43d79727ddd29bd5a7ac19
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83ef26bdf4b6b513417a97c8997aa2152bc0fb0f0af9d0b30cf6a46d4959ce38
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8c2d2663a4c8cf961eb6e47123054f1dd40a7c23bf663762b0f0fc827b6b44f7
Formbook
b9c1be5f81b9261b1bb68fb0f667a57721bd04b750427a9382844c42d18dba6e
Formbook
dbdfc4a9100fa08d0bb6ca2879febbc5e0db4eca85168dfefb526b584976efaf
Formbook
e3a859708d3e54210dbd7aaf0a2a78e1a11e8e2b3dcd358f91c3aa5091b94bf0
Formbook
+ 5'088 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/200728-kmsh9q3mca/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SendNotifyMessage
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Loads dropped DLL
Executes dropped EXE
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/141db63f511b843acf5d8a10f095333482850ed727da867bf39b83694b963ae6

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

File information

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

Malspam

Formbook

Excel file xlsm 95b8c1f748ebef3dcbad0fa3148d46d483d00620c3e56153e41fde8978daece9

Formbook

Executable exe 141db63f511b843acf5d8a10f095333482850ed727da867bf39b83694b963ae6

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/420698/
  
Dropped by
MD5 351e3d2752f956dbdeb693bcd032bf10
  
Dropped by
SHA256 95b8c1f748ebef3dcbad0fa3148d46d483d00620c3e56153e41fde8978daece9
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/33806/

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