MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 30bf20d0b592d380864b7ad863e8189d9375ff925d75131221bfdb33a3645199. 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: 30bf20d0b592d380864b7ad863e8189d9375ff925d75131221bfdb33a3645199
SHA3-384 hash: 12fed14f5abfc888c8ad3a987bde25ebe716e0b3d7b76a6d9b78b7ada0eab9d68438fd5fe85ad56ce7a29df3d138537c
SHA1 hash: 5c798d28eb12242c37ea449384496ea55b16da0f
MD5 hash: cbe7083550d2ffe9e1dcd7114389b3d2
humanhash: asparagus-idaho-ohio-lima
File name:15-8.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:537'088 bytes
First seen:2020-08-15 17:13:42 UTC
Last seen:2020-08-15 17:53:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 6144:YS14FFhvAqvxXdF9UWK5WpLZW92JPZuds0jAt+FqMMVuph5MCgrn:YS1QbvgWK5WpLZW9GPZuJstGPMfC
Threatray 2'237 similar samples on MalwareBazaar
TLSH 6BB44A3679828C3ACC36117574286EC2722566463FD68E3EA3DF43D87F410AB73A616D
Reporter abuse_ch
Tags:exe FormBook Hostwinds HSBC


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: hwsrv-762628.hostwindsdns.com
Sending IP: 104.168.242.143
From: HSBC Advising Service <info@erstisorof.com>
Subject: Payment Advice - Advice Ref:[GLV226611980] / ACH credits / Customer Ref:[LCY571905476] / Second Party Ref:[265452P]
Attachment: 15-8.zip (contains "15-8.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
104
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/46322/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.43668756.28410.7869.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% subdirectories
Sending a UDP request
Creating a file
Creating a process from a recently created file
Launching the default Windows debugger (dwwin.exe)
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/432052
Signature
Allocates memory in foreign processes
Injects a PE file into a foreign processes
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
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 268440 Sample: 15-8.exe Startdate: 17/08/2020 Architecture: WINDOWS Score: 92 40 Malicious sample detected (through community Yara rule) 2->40 42 Yara detected FormBook 2->42 44 Modifies the prolog of user mode functions (user mode inline hooks) 2->44 9 15-8.exe 6 2->9         started        process3 file4 28 C:\Users\user\AppData\...\AddInProcess32.exe, PE32 9->28 dropped 30 C:\Users\user\AppData\...\AgileDotNetRT.dll, PE32 9->30 dropped 46 Writes to foreign memory regions 9->46 48 Allocates memory in foreign processes 9->48 50 Tries to detect virtualization through RDTSC time measurements 9->50 52 Injects a PE file into a foreign processes 9->52 13 AddInProcess32.exe 9->13         started        signatures5 process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 13->54 56 Maps a DLL or memory area into another process 13->56 58 Sample uses process hollowing technique 13->58 60 2 other signatures 13->60 16 wlanext.exe 13->16         started        19 explorer.exe 13->19 injected process8 dnsIp9 34 Modifies the context of a thread in another process (thread injection) 16->34 36 Maps a DLL or memory area into another process 16->36 38 Tries to detect virtualization through RDTSC time measurements 16->38 22 cmd.exe 1 16->22         started        32 www.greenleap.men 19->32 24 autoconv.exe 19->24         started        signatures10 process11 process12 26 conhost.exe 22->26         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/30bf20d0b592d380864b7ad863e8189d9375ff925d75131221bfdb33a3645199/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-08-15 11:00:10 UTC
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=gc7sbufvsljybbslplmgh2aytwjxl74slv2rgerbx7nthi3ekgmq._file
Verdict:
malicious
Similar samples:
1f9fd019fecafc3fbe198147d78effb31ddcf7908536854e386a971602afe1c1
Formbook
4fd6cfb4c08338e8b3a6ec64118aa6ad90350e865e90365b5b700aa41908b984
Formbook
5ad5a878cb51009bc4e935705c0a1ef60654891dd16fe19f728f344b5aaeff2e
Formbook
8e2f9a1b23ade94b0803ea57ac92e916daad73d760f075fed8f1443715104531
Formbook
9295ce88660ed117b7cfff0886232a51dc6492bf6100738957bf93fabdb74bb8
Formbook
967360ebfc55336f03edccc32869b0e6b65c17e66fcdac083d4bcc185b852c0d
Formbook
d3e579b62c6877384f6ed9da7d86aea05ff6b881c141470ec7858fe9f0d992a9
Formbook
d5231355835fc25fb6f9923639331084ff0ae602929793c263e01eda38d2fa1b
Formbook
db976b273e92b605275bbe6c8590f3ef6687faa0effc351a35d15af1f8fc1c3a
Formbook
e04b0836667f55bcc1778c62761c99af52cb5c42c14cef3962531512def2944b
Formbook
+ 2'227 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
agilenet rat trojan spyware stealer family:formbook persistence
Link:
https://tria.ge/reports/200815-9ln2bcy4dx/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Obfuscated with Agile.Net obfuscator
Reads user/profile data of web browsers
Executes dropped EXE
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.funpexw.com/dmr/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/30bf20d0b592d380864b7ad863e8189d9375ff925d75131221bfdb33a3645199

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

zip 4a0d4e07d6df63de644f0fcc6fd49199928af1a29992fe924fcc062a67f1ec7e

Formbook

Executable exe 30bf20d0b592d380864b7ad863e8189d9375ff925d75131221bfdb33a3645199

(this sample)

  
Dropped by
MD5 3841903ab2d4fcc0b45c31d0541f3a1f
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/46322/
  
Dropped by
SHA256 4a0d4e07d6df63de644f0fcc6fd49199928af1a29992fe924fcc062a67f1ec7e

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