MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0b6acf8d9861c0c69b88b7a7bf1427c5245bbd968e96db1cdb08b8432442c729. 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: 8


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

SHA256 hash: 0b6acf8d9861c0c69b88b7a7bf1427c5245bbd968e96db1cdb08b8432442c729
SHA3-384 hash: a8b71645afbe7cdcea941340ec36d01add88c6fb9b6c9991edf5ee7b61ac9610502ab210cc4b2e0267836e98d639a516
SHA1 hash: 3997eb76ba7da530ef6624d37d6218bf89400159
MD5 hash: 767febc4e7ba132342b5271a06a370c8
humanhash: tennis-florida-minnesota-nuts
File name:YEw0N670fLb3Qwz.exe
Download: download sample
Signature FormBook
Create hunting rule
File size:456'192 bytes
First seen:2020-08-05 06:32:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:oIVlRRnNewpIcGvkUxYR+XVnBAsEzf7M/e:bvYwdVSVnr8M/
Threatray 5'323 similar samples on MalwareBazaar
TLSH 3AA4CF6DF2059CA5F427127E9C76A4031D13EB6F522A810F297A361E057731A38BBF87
Reporter abuse_ch
Tags:exe FormBook Hostwinds


Avatar
abuse_ch
Malspam distributing FormBook:

HELO: hwsrv-759308.hostwindsdns.com
Sending IP: 104.168.213.29
From: BETZEN JOSE | LOGISTICS COORDINATOR <info@crio2.com>
Reply-To: BETZEN JOSE | LOGISTICS COORDINATOR <info@crio.com>
Subject: Quotation Request
Attachment: Quotation.zip (contains "YEw0N670fLb3Qwz.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
77
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/38953/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/410157
Signature
Benign windows process drops PE files
Detected FormBook malware
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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)
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 257319 Sample: YEw0N670fLb3Qwz.exe Startdate: 05/08/2020 Architecture: WINDOWS Score: 100 48 www.winclubsoccer.com 2->48 56 Malicious sample detected (through community Yara rule) 2->56 58 Yara detected FormBook 2->58 60 Machine Learning detection for sample 2->60 62 4 other signatures 2->62 11 YEw0N670fLb3Qwz.exe 3 2->11         started        signatures3 process4 file5 46 C:\Users\user\...\YEw0N670fLb3Qwz.exe.log, ASCII 11->46 dropped 86 Tries to detect virtualization through RDTSC time measurements 11->86 88 Injects a PE file into a foreign processes 11->88 15 YEw0N670fLb3Qwz.exe 11->15         started        signatures6 process7 signatures8 90 Modifies the context of a thread in another process (thread injection) 15->90 92 Maps a DLL or memory area into another process 15->92 94 Sample uses process hollowing technique 15->94 96 Queues an APC in another process (thread injection) 15->96 18 explorer.exe 3 6 15->18 injected process9 dnsIp10 50 www.tromagy.com 63.250.41.73, 49742, 80 NAMECHEAP-NETUS United States 18->50 52 www.yzxlbj.com 18->52 54 www.smtpsystem.com 18->54 40 C:\Users\user\AppData\...\ox4tzlq8iby0x.exe, PE32 18->40 dropped 70 System process connects to network (likely due to code injection or exploit) 18->70 72 Benign windows process drops PE files 18->72 23 explorer.exe 1 17 18->23         started        27 ox4tzlq8iby0x.exe 18->27         started        29 help.exe 18->29         started        31 ox4tzlq8iby0x.exe 18->31         started        file11 signatures12 process13 file14 42 C:\Users\user\AppData\...\2M4logrv.ini, data 23->42 dropped 44 C:\Users\user\AppData\...\2M4logri.ini, data 23->44 dropped 74 Detected FormBook malware 23->74 76 Tries to steal Mail credentials (via file access) 23->76 78 Tries to harvest and steal browser information (history, passwords, etc) 23->78 84 2 other signatures 23->84 33 cmd.exe 23->33         started        80 Injects a PE file into a foreign processes 27->80 35 ox4tzlq8iby0x.exe 27->35         started        82 Tries to detect virtualization through RDTSC time measurements 29->82 signatures15 process16 signatures17 38 conhost.exe 33->38         started        64 Modifies the context of a thread in another process (thread injection) 35->64 66 Maps a DLL or memory area into another process 35->66 68 Sample uses process hollowing technique 35->68 process18
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0b6acf8d9861c0c69b88b7a7bf1427c5245bbd968e96db1cdb08b8432442c729/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-08-05 06:34:06 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=bnvm7dmymhamng4iw6t36fbhyusfxpmwr2lnwhg3bc4egjccy4uq._file
Verdict:
malicious
Similar samples:
049a7c8bf4126088f12bcdbe2e1d5bbe5e341cfddda7959379c93a4036546200
FormBook
08b47c6d183afb72f383ced4639ba73a03d9b36f06617585b3a3d28b69d1ce9f
FormBook
474cad642b1cf88f8d7f922cbfd9b8a00d7fc0eb40cafc0877007ee2884f105f
FormBook
48759dee612da5c1b36dfe7ce569a64c3e6528210ca830993cba1996db55ea87
FormBook
63b52bedfe18fe9a059dafcf21ed7d2bd58b00e8b4078c98e165c36e3d347b60
FormBook
783c6835be34af1803983890ec14e1edb2ac7cef4442dff43cddb719d97236b2
FormBook
9898e847968d9a38e9d33a618372ec13e726903761ea0787966ee82c737fd79f
FormBook
9a1bbd02f1dc5ae62f13a00f38067354bf8a754e72e3ebee49a8b6aaa7b7e41f
FormBook
b1ab330d8407adbc0731fd66b869bca53515ccf732d1ad498515e5e04f993de4
FormBook
e7a3a92b790205c08f44ddc1dc7fef7e0c44e930e00582b9c21a6ba95a25439c
FormBook
+ 5'313 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook persistence
Link:
https://tria.ge/reports/200805-ba174b3xrn/
Behaviour
Suspicious use of FindShellTrayWindow
System policy modification
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: MapViewOfSection
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Modifies Internet Explorer settings
Suspicious use of SendNotifyMessage
Drops file in Program Files directory
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Deletes itself
Adds policy Run key to start application
Formbook Payload
Formbook
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/0b6acf8d9861c0c69b88b7a7bf1427c5245bbd968e96db1cdb08b8432442c729

File information

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

Malspam

FormBook

zip 745e00e4a43761d5c4be5e29a539cda4e8ca2a45755b44e35321ced4a8d400c3

FormBook

Executable exe 0b6acf8d9861c0c69b88b7a7bf1427c5245bbd968e96db1cdb08b8432442c729

(this sample)

  
Dropped by
MD5 669bf2619644a7990942f3c2dac81c8d
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/38953/
  
Dropped by
SHA256 745e00e4a43761d5c4be5e29a539cda4e8ca2a45755b44e35321ced4a8d400c3

Comments