Malicious PDF — malware analysis report

Static analysis result for SHA-256 0324c3a8178d1c70…

MALICIOUS

PDF

45.3 KB Created: 2020-08-03 22:45:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 008a8e142ec69facced0c7ade201ffba SHA-1: 3b46c689a98706faede3ca1f39154a085f659542 SHA-256: 0324c3a8178d1c7073e8ea186509593bf293d0eac4189a5b6f905257be67f1ef
154 Risk Score

Malware Insights

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

The PDF contains embedded URLs that are part of a link farm, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text suggesting a lure related to a BMW S1000RR manual, which likely leads to the malicious URL. The presence of numerous PDF links and a critical heuristic firing for a malicious redirector strongly indicates a phishing or redirection attack.

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.ru/pify?keyword=bmw+s1000rr+2020+manual+pdf
    • http://files.flamelilyarts.com/uploads/1/3/0/8/130814788/70cfcb5b4.pdf
    • http://files.svaptsa.org/uploads/1/3/1/4/131482887/0f00d.pdf
    • http://files.thecommunityautismnetwork.com/uploads/1/3/1/6/131606366/forabeduselojep.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0438/4459/9958/files/bi_monthly_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0432/2312/2077/files/xumebalo.pdf
    • https://cdn.shopify.com/s/files/1/0432/4520/7714/files/45715547207.pdf
    • https://cdn.shopify.com/s/files/1/0429/8519/3621/files/pateriwifesivanadoxavobe.pdf
    • https://cdn.shopify.com/s/files/1/0431/6954/6396/files/xumuwagave.pdf
    • https://cdn.shopify.com/s/files/1/0428/2197/6220/files/timafo.pdf
    • https://cdn.shopify.com/s/files/1/0440/7810/4728/files/savage_divide_treasure_map_8.pdf
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/tetap.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78491346320.pdf
    • https://cdn.shopify.com/s/files/1/0431/5152/4008/files/lagirosufomitefada.pdf
    • https://cdn.shopify.com/s/files/1/0432/2865/9870/files/38369225888.pdf
    • https://cdn.shopify.com/s/files/1/0430/3729/4741/files/rasevajitaxeku.pdf
    • https://cdn.shopify.com/s/files/1/0434/4384/7328/files/you_know_what_s_bullshit.pdf
    • https://cdn.shopify.com/s/files/1/0435/3789/1482/files/les_miserables_i_dreamed_a_dream_sheet_music.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_off00007161.bin
859f8a538e3ddc053ec05d6df04a25944f9efa9ffb187157071141e716d1fe08		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7161 5656 bytes
font_01_sfnt_off000084a8.bin
0ec7a00bb3f8b8e9097bb46656a297fac29d4c694f5f7152c633882d19462159		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84A8 10488 bytes

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