MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f6f955fc757387a7d10c3cf17947ad0263069c9a22f9db10e9aefa6c5937e77b. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f6f955fc757387a7d10c3cf17947ad0263069c9a22f9db10e9aefa6c5937e77b
SHA3-384 hash: c294eb62a77a51773e1fa321f9bf54b893ca4df094d6de34f9bc796a24f04c8f83b2f8ded05e0fd5458bc52636a0dfe8
SHA1 hash: 09ac82cb4914274cb746dfdd12b177563750be72
MD5 hash: 3658bec1cc51ccec553f6ccf246cd1be
humanhash: magnesium-maine-kitten-cat
File name:3658bec1cc51ccec553f6ccf246cd1be.docx
Download: download sample
Signature Formbook
Create hunting rule
File size:10'329 bytes
First seen:2021-04-20 11:59:48 UTC
Last seen:Never
File type:Word file doc
MIME type:application/vnd.openxmlformats-officedocument.wordprocessingml.document
ssdeep 96:kHcIMm57P6LlRR6dmGJa6T/n/jNTMAIL0LAHDvUXorm0zODRWKWd/6VqJV+KecfD:ScIMmtPwl/HG/bnvqAgOD6/i63eYB
TLSH 55228E69D606BC2BC126847ED05C59F2F77C11A2D592F82F6049B2DD57502834BCBAF8
Reporter abuse_ch
Tags:docx FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
149
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
3658bec1cc51ccec553f6ccf246cd1be.docx
Verdict:
Malicious activity
Analysis date:
2021-04-20 12:07:10 UTC
Tags:
generated-doc trojan gamaredon apt opendir exploit CVE-2017-11882
Link:
https://app.any.run/tasks/859317df-b784-4898-b790-e0575cf2d05b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/msword
Has a screenshot:
False
Contains macros:
False
Detection(s):
SecuriteInfo.com.W97M.Downloader.Gen-2.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.RemoteFrameBadDDomainShowdown.202007014.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Connection attempt
Creating a window
Launching a process
Creating a file
Sending an HTTP GET request
Launching a file downloaded from the Internet
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
OOXML Office File
Link:
https://app.docguard.net/f6f955fc757387a7d10c3cf17947ad0263069c9a22f9db10e9aefa6c5937e77b/results/dashboard
Payload URLs
URL
File name
http://doctor.hopto.org/torotoro/kn.dot
webSettings.xml.rels
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/f6f955fc757387a7d10c3cf17947ad0263069c9a22f9db10e9aefa6c5937e77b
Details
Document With No Content
Document contains little or no semantic information.
External Relationship Element
Document contains an externally hosted relationship, which fetches further content.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/688972
Signature
C2 URLs / IPs found in malware configuration
Drops PE files to the user root directory
Found malware configuration
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Office equation editor drops PE file
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: File Dropped By EQNEDT32EXE
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 393429 Sample: 4lcewJbARW.docx Startdate: 20/04/2021 Architecture: WINDOWS Score: 100 39 doctor.hopto.org 2->39 55 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->55 57 Found malware configuration 2->57 59 Malicious sample detected (through community Yara rule) 2->59 61 11 other signatures 2->61 11 EQNEDT32.EXE 12 2->11         started        16 WINWORD.EXE 303 53 2->16         started        signatures3 process4 dnsIp5 35 C:\Users\user\AppData\Local\...\kn[1].exe, PE32 11->35 dropped 37 C:\Users\Public\vbc.exe, PE32 11->37 dropped 73 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 11->73 18 vbc.exe 2 11->18         started        47 doctor.hopto.org 172.245.45.28, 49165, 49166, 49167 AS-COLOCROSSINGUS United States 16->47 file6 signatures7 process8 signatures9 49 Multi AV Scanner detection for dropped file 18->49 51 Tries to detect virtualization through RDTSC time measurements 18->51 53 Injects a PE file into a foreign processes 18->53 21 vbc.exe 18->21         started        24 vbc.exe 18->24         started        process10 signatures11 63 Modifies the context of a thread in another process (thread injection) 21->63 65 Maps a DLL or memory area into another process 21->65 67 Sample uses process hollowing technique 21->67 69 Queues an APC in another process (thread injection) 21->69 26 explorer.exe 21->26 injected process12 dnsIp13 41 www.ikrasnoperov.com 26->41 43 www.agro4-0.online 26->43 45 3 other IPs or domains 26->45 71 System process connects to network (likely due to code injection or exploit) 26->71 30 control.exe 26->30         started        signatures14 process15 signatures16 75 Modifies the context of a thread in another process (thread injection) 30->75 77 Maps a DLL or memory area into another process 30->77 79 Tries to detect virtualization through RDTSC time measurements 30->79 33 cmd.exe 30->33         started        process17
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f6f955fc757387a7d10c3cf17947ad0263069c9a22f9db10e9aefa6c5937e77b/
Gathering data
Result
Malware family:
n/a
Score:
  10/10
Tags:
websettings
Link:
https://tria.ge/reports/210420-55admc7lfx/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Drops file in Windows directory
Abuses OpenXML format to download file from external location
Loads dropped DLL
Uses the VBS compiler for execution
Blocklisted process makes network request
Downloads MZ/PE file
Executes dropped EXE
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/f6f955fc757387a7d10c3cf17947ad0263069c9a22f9db10e9aefa6c5937e77b

File information

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

Web download

Formbook

Word file doc f6f955fc757387a7d10c3cf17947ad0263069c9a22f9db10e9aefa6c5937e77b

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1143868/
  
Delivery method
Distributed via web download

Comments