Malicious PDF — malware analysis report

Static analysis result for SHA-256 26c1d9b7d4ffe46c…

MALICIOUS

PDF

44.7 KB Created: 2020-08-12 18:28:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b0545062e31b56d2d83111fc764eb76 SHA-1: f39340d1146a77a25d881f030cfdf4404d91cdfb SHA-256: 26c1d9b7d4ffe46cc34608399c45b1f05c9ccf4ef159b029b6dc0497694860d6
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=fifth+wave+pdf+free+download', which is likely intended to lead the user to malicious content. The presence of numerous Shopify-hosted PDF links suggests an attempt at SEO poisoning or a broad phishing campaign.

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.cc/pify?keyword=fifth+wave+pdf+free+download
    • http://files.splchampton.com/uploads/1/3/2/8/132814680/5031290.pdf
    • http://files.alamodekabashsewingshop.com/uploads/1/3/0/7/130775509/fb0d85d.pdf
    • http://files.regansmotivatedfitness.com/uploads/1/3/0/8/130813095/vutuxenovova-javivupe-dapugaluzufawa.pdf
    • http://files.rosieduttonphotography.com/uploads/1/3/1/4/131406841/9501871.pdf
    • http://files.m-residencesforsale.com/uploads/1/3/0/8/130873943/52736f7521a.pdf
    • https://cdn.shopify.com/s/files/1/0434/6167/3126/files/19228806561.pdf
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/68818600645.pdf
    • https://cdn.shopify.com/s/files/1/0433/8850/2174/files/vinamod.pdf
    • https://cdn.shopify.com/s/files/1/0429/2745/6419/files/instagram_private_profile_viewer.pdf
    • https://cdn.shopify.com/s/files/1/0428/1958/4166/files/tojulowa.pdf
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/xezetera.pdf
    • https://cdn.shopify.com/s/files/1/0429/1778/9863/files/sapadorapuwu.pdf
    • https://cdn.shopify.com/s/files/1/0428/1751/9772/files/penizerojin.pdf
    • https://cdn.shopify.com/s/files/1/0433/8191/5802/files/murray_ky_zip.pdf
    • https://cdn.shopify.com/s/files/1/0433/6254/9910/files/xobitodalotago.pdf
    • https://cdn.shopify.com/s/files/1/0434/3899/7669/files/print_website_to_ipad.pdf
    • https://cdn.shopify.com/s/files/1/0433/9010/7815/files/black_decker_cordless_trimmer.pdf
    • https://cdn.shopify.com/s/files/1/0429/6769/5523/files/78534011708.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_off000063c0.bin
8d43a23eecf704864d70a49ba9d5e46921519b3a97f606f077e272bed8439bb4
pdf-font-stream PDF embedded font (sfnt) at offset 0x63C0 4844 bytes
font_01_sfnt_off0000743d.bin
771df0f1f442cb2888a913b749a590446ce655e1d5b35edfdefbd35264e8d284
pdf-font-stream PDF embedded font (sfnt) at offset 0x743D 10344 bytes
font_02_sfnt_off000097a6.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x97A6 4324 bytes