Malicious PDF — malware analysis report

Static analysis result for SHA-256 47324da61ba436e3…

MALICIOUS

PDF

34.8 KB Created: 2020-08-21 17:15:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 075b6a670231a6af86349c8c61688f2f SHA-1: d8eb836164aa5078ad9dd5acc942a52b24fa4106 SHA-256: 47324da61ba436e30bc5f6e5a639910c94e5a95d4d8c8e5e3eb24b836b81c204
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm and a critical redirector link pointing to ttraff.com, which is flagged as malicious. The document body, though heavily obfuscated, contains the target URL and appears to be a lure related to 'city of toronto complete streets guidelines'. The presence of numerous external PDF links suggests a link farm SEO tactic to distribute malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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=city+of+toronto+complete+streets+guidelines
    • http://masipumip.yorkshirephysioandwellbeing.com/uploads/1/3/0/7/130776054/wexuton-siwijitinije-levuwizolo-soviniz.pdf
    • http://files.updateshappen.com/uploads/1/3/1/3/131380107/jiwabenodopuve.pdf
    • http://files.globalluxeventures.com/uploads/1/3/1/4/131455283/kipedu-xalapoz-vevizarukutage-vikigu.pdf
    • https://cdn.shopify.com/s/files/1/0433/8086/7239/files/lbs_en_kg.pdf
    • https://cdn.shopify.com/s/files/1/0430/3329/7058/files/62491929455.pdf
    • https://cdn.shopify.com/s/files/1/0437/1962/2808/files/android_pie_asus_zenfone_4_max.pdf
    • https://cdn.shopify.com/s/files/1/0429/5717/6986/files/adding_fractions_like_denominators_worksheet_answers.pdf
    • https://cdn.shopify.com/s/files/1/0433/0894/1467/files/batla_house_movie_full_hd_filmywap.pdf
    • https://cdn.shopify.com/s/files/1/0432/9386/8187/files/chevy_trailblazer_repair_manual_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/8153/9489/files/akumetsu_manga.pdf
    • https://cdn.shopify.com/s/files/1/0431/6548/3168/files/33553280517.pdf
    • https://cdn.shopify.com/s/files/1/0446/9764/9306/files/customs_and_traditions_worksheet_answers.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27247465441.pdf
    • https://cdn.shopify.com/s/files/1/0432/3767/1075/files/encapsulation_in_c_with_example_program.pdf
    • https://cdn.shopify.com/s/files/1/0447/9772/2785/files/zejidivetoxud.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004c5a.bin
8ad85c5de21626608890ef9fbf7724e69d1baaf39b2233d6021b443dc1c42a6d
pdf-font-stream PDF embedded font (sfnt) at offset 0x4C5A 5272 bytes
font_01_sfnt_off00005e3b.bin
ca2956b8fc825993f03e5e51b00fb8114e5ed856d6557bd30a29a4bc3d2bb050
pdf-font-stream PDF embedded font (sfnt) at offset 0x5E3B 9320 bytes