Malicious PDF — malware analysis report

Static analysis result for SHA-256 33c0eef5b0b1578c…

MALICIOUS

PDF

40.3 KB Authoring application: Pdftk First seen: 2020-09-24
MD5: 6c3a417e2f32c7a44027398f503fc8c8 SHA-1: ec811e93f13d96d5f4f4822d18efb4e22864a503 SHA-256: 33c0eef5b0b1578c5795dc61581d87be769004aed78e12018d06709c2fc58e33
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or malicious redirection intent. The document body contains garbled text and technical instructions unrelated to the primary malicious function, suggesting it's either a lure or a byproduct of the PDF generation process.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://mta-sts.mail.tsoliscompany.com/uploads/1/3/0/5/130588806/gapevitiz-tusisexizipe-lilevuluk.pdf In PDF document text
    • http://spectrum-capital.com/uploads/1/3/0/6/130603955/b4ae733c8.pdfIn PDF document text
    • http://www.rentacourier.com/uploads/1/3/0/6/130639856/5552485.pdfIn PDF document text
    • http://capitalistenigma.com/uploads/1/3/0/3/130379912/3765296.pdfIn PDF document text
    • http://74-123-78-234.mgwnet.com/uploads/1/3/0/4/130488734/5726290.pdfIn PDF document text
    • http://erskinevilleacupuncture.com/uploads/1/3/0/2/130271041/pegatasenogap.pdfIn PDF document text
    • http://beverlywilshire.org/uploads/1/3/0/5/130544226/5342888.pdfIn PDF document text
    • http://solreta.com/uploads/1/3/0/6/130604508/jisav.pdfIn PDF document text
    • http://organicdirt.net/uploads/1/3/0/4/130475932/tonefatowiziwe-wexinixarupopat-niporupazago-zoxoniwotexema.pdfIn PDF document text
    • http://www.4continentsofworldtravel.org/uploads/1/3/0/3/130313612/1801049.pdfIn PDF document text
    • http://www.sbcihurtsworkers.com/uploads/1/3/0/3/130324278/d672a.pdfIn PDF document text
    • http://tomandkristin.com/uploads/1/3/0/9/130969471/dijomixazem-fakibano-gotutasesas-besaragogeson.pdfIn PDF document text
    • http://mommymouth.com/uploads/1/3/0/2/130272606/4751988.pdfIn PDF document text
    • http://mysunfast3200.com/uploads/1/3/0/8/130874666/8113212.pdfIn PDF document text
    • http://cdaap.org/uploads/1/3/0/3/130313010/zagorulu.pdfIn PDF document text
    • http://mail2.crashinc.com/uploads/1/3/0/5/130590462/5657211.pdfIn PDF document text
    • http://www.theprettygirlclubhouse.com/uploads/1/3/0/4/130483413/wawamefod-burewajiluto-jetobow.pdfIn PDF document text
    • http://moagabrielsson.com/uploads/1/3/0/4/130476885/2920554.pdfIn PDF document text
    • http://hostmaster.grendonrangersfc.co.uk/uploads/1/3/0/2/130270864/9792322.pdfIn PDF document text
    • http://footballcollectible.org/uploads/1/3/0/7/130776113/lemagika_zuwepid_karewurek_kidusebukogifu.pdfIn PDF document text
    • http://teamjaime.com/uploads/1/3/0/7/130775732/tezimos.pdfIn PDF document text
    • http://meshayla.com/uploads/1/3/0/4/130435895/130435895.html#how+to+test+smd+capacitor+with+multimeterIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E6A 2996 bytes
SHA-256: 1c2ff97ecfd79781e32b8e73148ac112eb5bbd615c5f296a34426ba9c46537e9
font_01_sfnt_off00003b7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B7B 8344 bytes
SHA-256: f9d202ba54cd5b240745eb46a217685c7400ae6c44cc5873e3e39687f321d376