Malicious PDF — malware analysis report

Static analysis result for SHA-256 061cdf83ccfe9951…

MALICIOUS

PDF

68.0 KB Created: 2020-08-07 00:13:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 17b2ddbfedbf3f38a9559860dc53f979 SHA-1: cbec9a7ecaf823a989a2b37505f01c8a355c1dd1 SHA-256: 061cdf83ccfe9951854f4c238c13c018e4e7cb70992e720486c20456addd3ca1
154 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.com', which is flagged as malicious. It also hosts a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO manipulation tactic. The ML classifier strongly indicated maliciousness, and the embedded URLs are the primary indicators of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=types+of+spanning+tree+protocol+pdf
    • http://files.mistrasgrouplearncenter.com/uploads/1/3/1/1/131163533/nugetivo.pdf
    • http://files.incanonmedia.com/uploads/1/3/1/4/131454065/1308660.pdf
    • http://files.morganpadgett.org/uploads/1/3/0/9/130969498/3ed03d3914.pdf
    • http://files.daytoncommunitynews.com/uploads/1/3/0/7/130739740/tobojagodeluga.pdf
    • http://http://iMAP
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0431/5817/5908/files/32679499025.pdf
    • https://cdn.shopify.com/s/files/1/0433/9246/7109/files/zotabiwegatafexalufow.pdf
    • https://cdn.shopify.com/s/files/1/0431/3009/3728/files/exercicios_de_angulos_agudos_obtusos_e_retos.pdf
    • https://cdn.shopify.com/s/files/1/0436/0758/9027/files/8917287323.pdf
    • https://cdn.shopify.com/s/files/1/0431/3730/2685/files/5942550304.pdf
    • https://cdn.shopify.com/s/files/1/0438/2241/6029/files/24298537463.pdf
    • https://cdn.shopify.com/s/files/1/0432/2259/7800/files/83879009917.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mefiwi.pdf
    • https://cdn.shopify.com/s/files/1/0428/4160/4263/files/35909019017.pdf
    • https://cdn.shopify.com/s/files/1/0429/8555/4073/files/nifod.pdf
    • https://cdn.shopify.com/s/files/1/0433/7870/4536/files/wekuvabawoma.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b763.bin
98fd561e103da47550e1617f4ad00765ae3ca774c00f1a876114e885fa49e889		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB763 5164 bytes
font_01_sfnt_off0000c907.bin
1e48053a765f1b6953c048a09da74816b6293ffb3f421887f079cb891aa07e5b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC907 13724 bytes
font_02_sfnt_off0000f481.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF481 4324 bytes

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