MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 310ac239dccf819be79922ba630c15f8adc5a66e4c0a8f562f9c01765b1271c6. 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: 10


Intelligence 10 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 310ac239dccf819be79922ba630c15f8adc5a66e4c0a8f562f9c01765b1271c6
SHA3-384 hash: 1cb9835b759485e7dbb0fde15b2a46a82b7a9a713eeb315e778d4501f2c08f4ff9accce2d4bc2dca086d17d7685acfc0
SHA1 hash: c53943e9165fb57e9b3302ee6dd0356409eb3223
MD5 hash: c28e937767f41b1cb076a1c0e0033112
humanhash: sixteen-indigo-enemy-edward
File name:Payment.pdf.com
Download: download sample
Signature FormBook
Create hunting rule
File size:400'384 bytes
First seen:2020-08-03 14:03:11 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 6144:+ClygkF2GhNKoeV9O6sxXl35rENOwfpxCZfLZdqarxG9O11uHI6jtGdacOAWV:FGF2iNkVE3NnsYZd0oGoJOAWV
Threatray 5'301 similar samples on MalwareBazaar
TLSH 0084E0252358BF22D27DA7B99020150033F7E142FB63DB1EFEE056F74592F914AA2B52
Reporter abuse_ch
Tags:com FormBook


Avatar
abuse_ch
Malspam distributing FormBook:

HELO: [206.189.139.126]
Sending IP: 206.189.139.126
From: ashley.wang@dgshihua.cn
Subject: Re: Re: Re: Payment Advice
Attachment: Payment.pdf.xz (contains "Payment.pdf.com")

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/37936/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching cmd.exe command interpreter
Forced shutdown of a system process
Unauthorized injection to a system process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/408096
Signature
Executable has a suspicious name (potential lure to open the executable)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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
Sigma detected: Suspicious Double Extension
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 256297 Sample: Payment.pdf.com Startdate: 03/08/2020 Architecture: WINDOWS Score: 100 32 www.musicto.date 2->32 40 Malicious sample detected (through community Yara rule) 2->40 42 Yara detected AntiVM_3 2->42 44 Yara detected FormBook 2->44 46 7 other signatures 2->46 11 Payment.pdf.exe 3 2->11         started        signatures3 process4 file5 30 C:\Users\user\AppData\...\Payment.pdf.exe.log, ASCII 11->30 dropped 54 Tries to detect virtualization through RDTSC time measurements 11->54 56 Injects a PE file into a foreign processes 11->56 15 Payment.pdf.exe 11->15         started        18 Payment.pdf.exe 11->18         started        signatures6 process7 signatures8 58 Modifies the context of a thread in another process (thread injection) 15->58 60 Maps a DLL or memory area into another process 15->60 62 Sample uses process hollowing technique 15->62 64 Queues an APC in another process (thread injection) 15->64 20 explorer.exe 15->20 injected process9 dnsIp10 34 www.parquetowers1106.com 20->34 36 www.mugtravel.com 20->36 38 www.10232pua.com 20->38 23 control.exe 20->23         started        process11 signatures12 48 Modifies the context of a thread in another process (thread injection) 23->48 50 Maps a DLL or memory area into another process 23->50 52 Tries to detect virtualization through RDTSC time measurements 23->52 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/310ac239dccf819be79922ba630c15f8adc5a66e4c0a8f562f9c01765b1271c6/
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2020-08-03 14:05:07 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=gefmeoo4z6azxz4zek5ggdav7cw4ljtojqfi6vrptqaxmwysohda._file
Verdict:
malicious
Similar samples:
049c930e35f038764e8bc794a6ef12474468b01457eac80483059ab91775c7ce
FormBook
3e98d7f59e495ddfa5140a50f70347bb4a56296ca2dcb6602f65ebb4e4a0373b
FormBook
590fde182a154cd89b15d88546d60351b9fecb51e04fbbf4affd8d49a618bd23
FormBook
5e5d88343393a5a1f98a66c8e5967023e200dcf3be81bc0a3c210396156d0fea
FormBook
5ea463243b051351c219469515fb9b39d01c5c3c4f4698bd6164e36070622d35
FormBook
61b48926bb6bbe4e308cf6e2c48345f50d2bda94f501915bd00a3139f9808e10
FormBook
6f827b68129d30609057c2e6b36be05649fce91d6bc8ee3d3566ca5c6aba562b
FormBook
b9cd83c667b694ec10f884183b138beeb0f986a7d3c50af463535852f2fa0663
FormBook
d3664113994262962936ebe74d0355986970def0cd0bcdcf088fe102047df9ba
FormBook
dea5303370177b621cdd1fd497396ddaa9e94d3edd1407339f52f0dc85a67046
FormBook
+ 5'291 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat spyware trojan stealer family:formbook evasion persistence
Link:
https://tria.ge/reports/200803-amdpzrexnx/
Behaviour
Suspicious use of FindShellTrayWindow
Suspicious behavior: MapViewOfSection
Suspicious use of SendNotifyMessage
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
System policy modification
Modifies Internet Explorer settings
Suspicious use of AdjustPrivilegeToken
Drops file in Program Files directory
Suspicious use of SetThreadContext
Checks whether UAC is enabled
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:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/310ac239dccf819be79922ba630c15f8adc5a66e4c0a8f562f9c01765b1271c6

File information

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

Malspam

FormBook

xz 76c6da49027552ddf331f4f1fb54fd71df9dcf6c4dddb5f8591f399ee2fdb4d4

FormBook

Executable exe 310ac239dccf819be79922ba630c15f8adc5a66e4c0a8f562f9c01765b1271c6

(this sample)

  
Dropped by
MD5 25b6b335d9518c653137a92805a418f3
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/37936/
  
Dropped by
SHA256 76c6da49027552ddf331f4f1fb54fd71df9dcf6c4dddb5f8591f399ee2fdb4d4

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