Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e11f77ba4785451…

MALICIOUS

PDF

43.9 KB Created: 2020-03-10 04:07:56 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-08-10
MD5: 58e6ec62da342c0e1e3a3da49e737c59 SHA-1: ab6f6e60511a0738d74a78b7520ff84bf96a2238 SHA-256: 7e11f77ba47854511cea6678c30d75a67af56c85a20600c31fdfcd7f02fff621
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links, many of which point to other PDF files, indicating a link farm or SEO manipulation tactic. The heuristic 'SE_PAYMENT_REDIRECT_LURE' suggests the document's content is designed to trick users into believing there are new or changed payment instructions, a common tactic in business email compromise. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious lure designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://www.cloverlegacy.com/uploads/1/3/0/5/130550683/130550683.html#axis+bank+fd+rates+2018+for+senior+citizens PDF link annotation
    • http://handbagcentral.com.au/uploads/1/3/0/6/130604312/tisinutanalepis-vuzukeborekisak-loroxobuf.pdfIn PDF document text
    • http://celsosim.com/uploads/1/3/0/6/130621446/97f047d0a9f775b.pdfIn PDF document text
    • http://barnetbowlsclub.com/uploads/1/3/1/0/131070805/1320869.pdfIn PDF document text
    • http://mcaloonegroup.com/uploads/1/3/0/4/130476144/dugumisuvonadifavef.pdfIn PDF document text
    • http://www.matthewallenmusic.com/uploads/1/3/0/2/130289636/4f8b4e53631.pdfIn PDF document text
    • http://eugeneioannou.com/uploads/1/3/0/7/130775972/512136.pdfIn PDF document text
    • http://malachany.net/uploads/1/3/0/4/130483393/3259235.pdfIn PDF document text
    • http://polychromatiks.com/uploads/1/3/0/7/130776149/zegazisiba_vuteme_pojuneviwaxel.pdfIn PDF document text
    • http://kosmetik.space/uploads/1/3/0/7/130776088/logekukuduva.pdfIn PDF document text
    • http://palmettopreswic.org/uploads/1/3/0/5/130590361/2198392.pdfIn PDF document text
    • http://jakebrenneise.org/uploads/1/3/0/6/130603855/daf9ef71360ba00.pdfIn PDF document text
    • http://metrix-psy.com/uploads/1/3/0/7/130740092/tejokow-lifaweluwip-satukeraxo.pdfIn PDF document text
    • http://www.mrb2btechwriter.com/uploads/1/3/0/5/130543063/5872747.pdfIn PDF document text
    • http://2and3.org/uploads/1/3/0/8/130874076/tigugumeteg-zawagijejesu-zanemelolize-xokolupiwatek.pdfIn PDF document text
    • http://kbkornhole.com/uploads/1/3/0/2/130272569/balozuti.pdfIn PDF document text
    • http://desireezantolas.com/uploads/1/3/0/9/130969566/c4d0b9.pdfIn PDF document text
    • http://mail.eastwoodvillage.com/uploads/1/3/0/7/130775142/tulixusegojepekini.pdfIn PDF document text
    • http://www.lupinefilms999.com/uploads/1/3/0/7/130776609/efda3fd6.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000083f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83F0 7820 bytes
SHA-256: 37fbd1ebbf50a447bed7914443827a0d56912923bf96414f93129f10a19b58b5

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