Malicious PDF — malware analysis report

Static analysis result for SHA-256 555535935d292629…

MALICIOUS

PDF

44.3 KB Created: 2020-08-20 17:58:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3d0974dacfafffbf3dd640e4b15e2c2d SHA-1: 44f572615541e8a50cc5c8a30e1a57146ebcbe76 SHA-256: 555535935d29262970891836dd2f1c68391f492952b302989c3242f9103982b8
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains URLs that likely serve as lures. The primary attack pattern involves redirecting users to malicious infrastructure via these links, potentially for further exploitation or credential harvesting. No scripts were extracted from this sample.

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=apology+for+poetry+analysis+pdf
    • http://files.pocparanormalauthors.com/uploads/1/3/1/3/131398144/8fa7e6804a722b.pdf
    • http://files.hecklerancestry.com/uploads/1/3/2/7/132740327/4967143.pdf
    • http://files.doberunkennel.com/uploads/1/3/1/4/131409794/memava-modilikonanixig-zasivu.pdf
    • http://vuletutev.whitepicketflowerfarm.com/uploads/1/3/1/6/131606262/5054743.pdf
    • http://jinurexi.houseofchina.org/uploads/1/3/0/8/130814328/dujivajovot-gonepuzogulojej-tunasi.pdf
    • https://cdn.shopify.com/s/files/1/0433/9626/8193/files/34591420600.pdf
    • https://cdn.shopify.com/s/files/1/0439/2668/3816/files/african_gray_parrot_care_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0427/8360/4903/files/12997236869.pdf
    • https://cdn.shopify.com/s/files/1/0460/4008/8740/files/name_3d_shapes_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0436/1981/1490/files/bibesewosenemetuj.pdf
    • https://cdn.shopify.com/s/files/1/0441/0497/4488/files/nikiritofufefep.pdf
    • https://cdn.shopify.com/s/files/1/0431/3330/4981/files/dufiribipilafuvunaxegakam.pdf
    • https://cdn.shopify.com/s/files/1/0437/5219/4202/files/84570377945.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_off00007069.bin
cc67d26a80e86f584bb5ec674f157f5e9b400d41cef218096b13a54d3982caf6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7069 5300 bytes
font_01_sfnt_off0000827f.bin
c2aa142d319d2eaf1aa2233c091ba5eb3249d3c554d3d24436424622edaa1c59		 pdf-font-stream PDF embedded font (sfnt) at offset 0x827F 9952 bytes

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