Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2f0a063f741b1d1…

MALICIOUS

PDF

49.7 KB Created: 2020-08-16 20:54:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9cd010e201d11948b4bb78e84d34f203 SHA-1: 6771289f963a764fe4a525ffc58d8dc5355831ac SHA-256: a2f0a063f741b1d190f84af11270a1c2f6f20d813b588312b79066577cefff4c
150 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a primary malicious redirector URL embedded in the document body. The document body text and embedded URLs suggest a lure to download software, specifically 'Football manager 2019 digital mac', which redirects to a malicious site. The ML classifier strongly supports the malicious nature of this PDF.

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.cc/pify?keyword=football+manager+2019+digital++mac
    • http://files.dmaww.org/uploads/1/3/1/4/131437538/9576270.pdf
    • http://files.teaandbiscuitconsultancy.com/uploads/1/3/0/7/130776406/576b23ab0d431c.pdf
    • http://files.esilwater.com/uploads/1/3/1/4/131438629/rafoleduxofomedabuje.pdf
    • http://nafivubag.soundcityreading.com/uploads/1/3/0/8/130813528/d8a0450bb.pdf
    • https://cdn.shopify.com/s/files/1/0434/4853/3144/files/alter_ego_2_cahier_d_activits_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/2528/5798/files/69250824874.pdf
    • https://cdn.shopify.com/s/files/1/0436/3495/0304/files/fuxij.pdf
    • https://cdn.shopify.com/s/files/1/0433/6753/0655/files/20601025735.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/marifurozijuzaledenikegi.pdf
    • https://cdn.shopify.com/s/files/1/0432/2128/7067/files/antibiotics_resistance_2020.pdf
    • https://cdn.shopify.com/s/files/1/0437/6287/6565/files/kukaradifoxugerex.pdf
    • https://cdn.shopify.com/s/files/1/0437/8460/1761/files/talati_book_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/2417/0664/files/isotopes_isobars_isotones_isomers.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_off00006fac.bin
88aa6909d444324e8e2a7105fe506cbd8b32a961e55f18506196b58719be9200		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FAC 5660 bytes
font_01_sfnt_off000082cb.bin
4868153f5200892d8b9aa9611a808359786363d700a53a2c7677fa04903726c6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82CB 2248 bytes
font_02_sfnt_off00008d20.bin
3eaf92ced71d0b0242fb35d7ceeb9ab346b247ef152f98ef084557be95ddddf3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D20 14368 bytes

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