Malicious PDF — malware analysis report

Static analysis result for SHA-256 765a930023565075…

MALICIOUS

PDF

40.6 KB Created: 2020-08-08 17:29:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5c61443a7eb9f83bb11b6845dc48a376 SHA-1: b6f479d17a0f7b76528dbc7b07999e431e71752b SHA-256: 765a930023565075beb18e56e365ac24b2b9d77e9765764cd8a5017dd082547d
194 Risk Score

Malware Insights

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

The PDF contains numerous links, with one identified as a malicious redirector. The document body and heuristics indicate a lure for an advance-fee scam, likely directing users to a phishing or malware site. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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 https://ttraff.com/pify?keyword=beyond+the+sea+real+book+pdf
    • http://moziviziv.tosharollins.com/uploads/1/3/0/8/130874284/zirenujuwafiwe_novake_goturituruzabo.pdf
    • http://dolem.vizadvantage.com/uploads/1/3/1/4/131482995/zixanosur.pdf
    • http://kafuvo.talkupyute.com/uploads/1/3/1/6/131637881/8467557.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/1415/1589/files/zenunatewolidazot.pdf
    • https://cdn.shopify.com/s/files/1/0432/5461/2123/files/15590863433.pdf
    • https://cdn.shopify.com/s/files/1/0433/0281/3849/files/36691814332.pdf
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/63826094215.pdf
    • https://cdn.shopify.com/s/files/1/0436/5071/1705/files/74101429442.pdf
    • https://cdn.shopify.com/s/files/1/0429/1559/4393/files/benzoic_acid_sds.pdf
    • https://cdn.shopify.com/s/files/1/0427/6197/8023/files/zigovow.pdf
    • https://cdn.shopify.com/s/files/1/0429/2355/7030/files/xeguvakazisunaxovipi.pdf
    • https://cdn.shopify.com/s/files/1/0434/1530/6405/files/kitojobusag.pdf
    • https://cdn.shopify.com/s/files/1/0433/6789/1094/files/moruketazexog.pdf
    • https://cdn.shopify.com/s/files/1/0429/5698/0377/files/43155519734.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kuvesagapixunijibofalase.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005fdd.bin
a9c277c720028285cb5cb9cde5406bb94f153e1eb7d7c21786645205183b3541		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FDD 5484 bytes
font_01_sfnt_off00007283.bin
78df99b01f1251dc5a2c288b7f911e63f37da2b1c43499ce46a8347a5cb001df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7283 10248 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.