MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e075b055ecaa6759910cbe9d15a39f6f293f10956029ceb0186f7026137803a8. 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 3 File information Comments
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SHA256 hash: e075b055ecaa6759910cbe9d15a39f6f293f10956029ceb0186f7026137803a8
SHA3-384 hash: a3e6c92bc09a451694149b6379a7db00b0a56a8836346d91f5223c9711d9950770cbadcdceb68cdebea37093da15d998
SHA1 hash: 4da832dea8b02d10a9adef4fb62800b53e772b8a
MD5 hash: 2a74f0100efc4ff7a1b65117f4d9675d
humanhash: arizona-wisconsin-one-triple
File name:shipping_invoice.doc.vir
Download: download sample
Signature Formbook
Create hunting rule
File size:23'213 bytes
First seen:2022-06-23 21:29:20 UTC
Last seen:Never
File type:Word file doc
MIME type:application/octet-stream
ssdeep 384:iPYDj9w/IPjyUg9NxsRakBbvARQ7Z33i3KIyG:xjKQu8Rz9AROTG
TLSH T1B7A2007EF54B0A499F96D6A9060A7BA5064DF11D33C840F23BB8DB38795C8578B22D3C
Reporter KdssSupport
Tags:CVE-2017-11882 doc FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
264
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Searching for synchronization primitives
Launching a process
Sending a custom TCP request
Creating a window
Creating a file
Сreating synchronization primitives
Sending an HTTP GET request
Creating a process from a recently created file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
embedequation exploit packed shellcode
Link:
https://www.filescan.io/uploads/62b4db61e88d6da4ffc0690c/reports/e6f3ba40-39fa-4043-8f53-8ae932f414fb/overview
Result
Verdict:
MALICIOUS
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1019164
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Drops PE files to the user root directory
Initial sample is an obfuscated RTF file
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Office equation editor drops PE file
Office equation editor establishes network connection
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Shellcode detected
Sigma detected: File Dropped By EQNEDT32EXE
Snort IDS alert for network traffic
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: 651664 Sample: shipping_invoice.doc.vir Startdate: 24/06/2022 Architecture: WINDOWS Score: 100 36 www.ziperpay.com 2->36 38 ziperpay.com 2->38 56 Initial sample is an obfuscated RTF file 2->56 58 Snort IDS alert for network traffic 2->58 60 Multi AV Scanner detection for domain / URL 2->60 62 17 other signatures 2->62 10 EQNEDT32.EXE 12 2->10         started        15 WINWORD.EXE 291 21 2->15         started        signatures3 process4 dnsIp5 46 198.46.132.217, 49171, 80 AS-COLOCROSSINGUS United States 10->46 30 C:\Users\user\AppData\Local\...\ekene[1].exe, PE32 10->30 dropped 32 C:\Users\Public\vbc.exe, PE32 10->32 dropped 82 Office equation editor establishes network connection 10->82 84 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 10->84 17 vbc.exe 1 5 10->17         started        34 ~WRF{281F32FD-3C09...D-266279286FC2}.tmp, Composite 15->34 dropped file6 signatures7 process8 signatures9 48 Multi AV Scanner detection for dropped file 17->48 50 Machine Learning detection for dropped file 17->50 52 Tries to detect virtualization through RDTSC time measurements 17->52 54 Injects a PE file into a foreign processes 17->54 20 vbc.exe 17->20         started        process10 signatures11 64 Modifies the context of a thread in another process (thread injection) 20->64 66 Maps a DLL or memory area into another process 20->66 68 Sample uses process hollowing technique 20->68 70 Queues an APC in another process (thread injection) 20->70 23 explorer.exe 20->23 injected process12 dnsIp13 40 www.pngtemplates.com 185.243.11.15, 49173, 80 NETCUP-ASnetcupGmbHDE Germany 23->40 42 192.168.2.22, 137, 49171, 49172 unknown unknown 23->42 44 5 other IPs or domains 23->44 72 System process connects to network (likely due to code injection or exploit) 23->72 74 Performs DNS queries to domains with low reputation 23->74 27 wininit.exe 23->27         started        signatures14 process15 signatures16 76 Modifies the context of a thread in another process (thread injection) 27->76 78 Maps a DLL or memory area into another process 27->78 80 Tries to detect virtualization through RDTSC time measurements 27->80
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e075b055ecaa6759910cbe9d15a39f6f293f10956029ceb0186f7026137803a8/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2022-06-23 21:30:06 UTC
File Type:
Document
Extracted files:
4
AV detection:
15 of 40 (37.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4b23avpmvjtvteimx2orli47n4ut6eevmau45mayn5ycme3yaoua._file
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e075b055ecaa/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.05
Link:
https://yomi.yoroi.company/submissions/e075b055ecaa6759910cbe9d15a39f6f293f10956029ceb0186f7026137803a8

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:INDICATOR_RTF_MalVer_Objects
Create hunting rule
Author:ditekSHen
Description:Detects RTF documents with non-standard version and embeding one of the object mostly observed in exploit documents.
Rule name:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
Rule name:SUSP_RTF_Header_Anomaly_RID2F7F
Create hunting rule
Author:Florian Roth
Description:Detects malformed RTF header often used to trick mechanisms that check for a full RTF header
Reference:https://twitter.com/ItsReallyNick/status/975705759618158593

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 e075b055ecaa6759910cbe9d15a39f6f293f10956029ceb0186f7026137803a8

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2248623/
  
Delivery method
Distributed via web download

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