MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1f9fd019fecafc3fbe198147d78effb31ddcf7908536854e386a971602afe1c1. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1f9fd019fecafc3fbe198147d78effb31ddcf7908536854e386a971602afe1c1
SHA3-384 hash: ab1436e027cbe9a2c4bc98d4a9fccf01216e7a70a849db55c5664f2875eb522dcb6fc51eb553504b07d0fe8844983e7c
SHA1 hash: 0e4336d400b09822f859b87d9967b95c408e3970
MD5 hash: 402f479ddd834ea734e3a57683809e61
humanhash: sad-lactose-thirteen-hot
File name:01408.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:460'800 bytes
First seen:2020-08-14 15:04:02 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:PS1SEFW0bkf/W92JPZuds0jAt+FqMMVuph5MCgrn1:PS1s0bkf/W9GPZuJstGPMfC
Threatray 2'240 similar samples on MalwareBazaar
TLSH 51A43A3974C39878D4368378247D6AC2B62667843FD5C72E63DB034A9F034AB77A152E
Reporter abuse_ch
Tags:exe FormBook Hostwinds


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: hwsrv-762628.hostwindsdns.com
Sending IP: 104.168.242.143
From: BANCO BBVA <info@erstisorof.com>
Subject: Aviso de pago - Ref. Aviso: [GLV226611370] / Créditos ACH / Ref. Cliente: [LCY571905476] / Ref. Segunda parte: [265452P]
Attachment: 01408.zip (contains "01408.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
86
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/46023/
Detection(s):
SecuriteInfo.com.Formbook.19508.346.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a 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.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/430162
Signature
Allocates memory in foreign processes
Detected FormBook malware
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 267492 Sample: 01408.exe Startdate: 16/08/2020 Architecture: WINDOWS Score: 100 36 www.donebymidnight.com 2->36 38 shops.myshopify.com 2->38 40 www.wwwmaharashtratimes.com 2->40 44 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Yara detected FormBook 2->48 50 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 2->50 11 01408.exe 4 2->11         started        signatures3 process4 file5 34 C:\Users\user\AppData\...\AddInProcess32.exe, PE32 11->34 dropped 62 Writes to foreign memory regions 11->62 64 Allocates memory in foreign processes 11->64 66 Injects a PE file into a foreign processes 11->66 15 AddInProcess32.exe 11->15         started        signatures6 process7 signatures8 68 Modifies the context of a thread in another process (thread injection) 15->68 70 Maps a DLL or memory area into another process 15->70 72 Sample uses process hollowing technique 15->72 74 2 other signatures 15->74 18 explorer.exe 15->18 injected process9 dnsIp10 42 www.albertabarricade.com 162.144.44.7, 49750, 80 UNIFIEDLAYER-AS-1US United States 18->42 52 System process connects to network (likely due to code injection or exploit) 18->52 22 cmstp.exe 1 17 18->22         started        signatures11 process12 file13 30 C:\Users\user\AppData\...\56Rlogrv.ini, data 22->30 dropped 32 C:\Users\user\AppData\...\56Rlogri.ini, data 22->32 dropped 54 Detected FormBook malware 22->54 56 Tries to steal Mail credentials (via file access) 22->56 58 Tries to harvest and steal browser information (history, passwords, etc) 22->58 60 3 other signatures 22->60 26 cmd.exe 1 22->26         started        signatures14 process15 process16 28 conhost.exe 26->28         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1f9fd019fecafc3fbe198147d78effb31ddcf7908536854e386a971602afe1c1/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-14 15:05:06 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=d6p5agp6zl6d7pqzqfd5pdx7wmo5z54qqu3iktrynklrmavp4haq._file
Verdict:
malicious
Similar samples:
4a6187dd467be22cbd3eab6807d368c37535c488af22442498423da8124f35fa
Formbook
5ad5a878cb51009bc4e935705c0a1ef60654891dd16fe19f728f344b5aaeff2e
Formbook
5e5d88343393a5a1f98a66c8e5967023e200dcf3be81bc0a3c210396156d0fea
Formbook
8e2f9a1b23ade94b0803ea57ac92e916daad73d760f075fed8f1443715104531
Formbook
967360ebfc55336f03edccc32869b0e6b65c17e66fcdac083d4bcc185b852c0d
Formbook
c5049b79f66303da5f8f91e527b7f182a765c54c075f134b1779fc5802ad6b1b
Formbook
d3e579b62c6877384f6ed9da7d86aea05ff6b881c141470ec7858fe9f0d992a9
Formbook
db976b273e92b605275bbe6c8590f3ef6687faa0effc351a35d15af1f8fc1c3a
Formbook
e04b0836667f55bcc1778c62761c99af52cb5c42c14cef3962531512def2944b
Formbook
e6d371badc121f232f4305f3a50f0a136d1b7edbc3337414ca692c26ae41986c
Formbook
+ 2'230 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/200814-5rttgnlq3e/
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
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/1f9fd019fecafc3fbe198147d78effb31ddcf7908536854e386a971602afe1c1

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 cbecb0193dcbd589eb69e91d7a4f4d094293f4561714607241086ab704bbf825

Formbook

Executable exe 1f9fd019fecafc3fbe198147d78effb31ddcf7908536854e386a971602afe1c1

(this sample)

  
Dropped by
MD5 bf55fd057d5759360ab5b542861306ab
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/46023/
  
Dropped by
SHA256 cbecb0193dcbd589eb69e91d7a4f4d094293f4561714607241086ab704bbf825

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