Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2683b7e611ea503…

MALICIOUS

PDF

55.9 KB Created: 2020-08-21 16:20:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 360a722e49b30b39c7491a8d19ec5941 SHA-1: 36d2d30cff73312d87cb219b00d02ecd3add7eca SHA-256: d2683b7e611ea5030761f404a1eb21261fceef662c4c3baca75356f84ee4907f
152 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, disguised as a manual for a Behringer X32 console. This suggests a phishing or social engineering attack aimed at redirecting users to malicious content. The presence of numerous other links, many pointing to Shopify domains hosting PDFs, indicates a potential link farm or SEO poisoning tactic to improve search engine visibility for malicious content.

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=manual+consola+behringer+x32+espa%25C3%25B1ol
    • http://files.ignitethejoy.org/uploads/1/3/1/4/131409009/bamizatitodox-beputugatopuvov.pdf
    • http://files.newlifefurnitureandrecycling.org/uploads/1/3/0/8/130874588/duvanifabepupeto.pdf
    • http://files.writingonreels.uk/uploads/1/3/0/9/130969966/2bb58a8b60.pdf
    • http://zoxem.threelittlepigsbath.com/uploads/1/3/2/8/132814439/filojotudokeleb_luvol_vulejefovuze.pdf
    • https://cdn.shopify.com/s/files/1/0428/9685/1111/files/fool_for_your_loving_tab.pdf
    • https://cdn.shopify.com/s/files/1/0435/0928/5024/files/regcure_pro_keys.pdf
    • https://cdn.shopify.com/s/files/1/0438/1710/7618/files/corel_draw_crackeado_64_bits.pdf
    • https://cdn.shopify.com/s/files/1/0437/8407/7473/files/37351691384.pdf
    • https://cdn.shopify.com/s/files/1/0437/3292/6615/files/pumotuxewewefepaxowuxe.pdf
    • https://cdn.shopify.com/s/files/1/0450/0871/5940/files/causes_of_water_pollution_seminar.pdf
    • https://cdn.shopify.com/s/files/1/0436/4831/9638/files/linux_administration_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/2517/0595/files/7097658954.pdf
    • https://cdn.shopify.com/s/files/1/0437/6556/3549/files/14571795923.pdf
    • https://cdn.shopify.com/s/files/1/0434/1858/3192/files/85940524451.pdf
    • https://cdn.shopify.com/s/files/1/0430/1222/7225/files/rukerululujaboxu.pdf
    • https://cdn.shopify.com/s/files/1/0429/1539/7788/files/boniface_mwangi_unbounded.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/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000081ff.bin
d8f2d46c61b5a4bcbccb4d59a75d38be5316554ea776bb45e097253dc718ff4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81FF 5716 bytes
font_01_sfnt_off0000951d.bin
90f5acecce4cc8b832470963c33de9a9b59bc4bc7ae7c177092eb1dbbac896ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x951D 14216 bytes
font_02_sfnt_off0000c1cc.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC1CC 4324 bytes

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