Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff0d1357c2e1efe7…

MALICIOUS

PDF

35.3 KB Created: 2020-08-25 17:08:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6814621e0db50ac6a295b19d3954a4bf SHA-1: 1c187eb681bf3835867f901306960ea91c0737c0 SHA-256: ff0d1357c2e1efe7935a1adf61e8bb50813ed5fd873a34c43ff2c2488d0e6e99
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, a common tactic for SEO poisoning or redirecting users to malicious sites. One critical heuristic identified a link to a known malicious redirector, specifically 'https://ttraff.ru/pify?keyword=avery+8160+christmas+label+template'. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to drive traffic to this malicious redirector. No scripts were extracted, limiting the analysis of further stages.

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.ru/pify?keyword=avery+8160+christmas+label+template
    • http://files.frankechenhofer.com/uploads/1/3/1/4/131453725/saledurejorade_jujemezonawumeg_sifebanirajo.pdf
    • http://tapumoda.kinneycountygcd.org/uploads/1/3/0/8/130874493/4ce97.pdf
    • http://molexel.gocopywrite.com/uploads/1/3/2/7/132740214/97cbec7c.pdf
    • http://kinosu.yesshecancampaign.com/uploads/1/3/1/4/131454859/pomipazijuredo.pdf
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/lakaborog.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sosivizugepu.pdf
    • https://cdn.shopify.com/s/files/1/0448/0807/7473/files/vivorarajagikajupajut.pdf
    • https://cdn.shopify.com/s/files/1/0433/3551/6318/files/46670332141.pdf
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/liberace_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0432/2679/2100/files/dubipojajem.pdf
    • https://cdn.shopify.com/s/files/1/0439/5096/4904/files/catalogue_asco_numatics.pdf
    • https://cdn.shopify.com/s/files/1/0436/8397/1237/files/56819007907.pdf
    • https://cdn.shopify.com/s/files/1/0437/1644/4311/files/pemarirulekisa.pdf
    • https://cdn.shopify.com/s/files/1/0431/1767/4656/files/lovaguwizasew.pdf
    • https://cdn.shopify.com/s/files/1/0439/7613/0718/files/julate.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_off00004ba2.bin
0e206a0f4afc49e72bc0997d8e814020cbf73c8eac9ea64f9d374fa2785f2b11
pdf-font-stream PDF embedded font (sfnt) at offset 0x4BA2 6004 bytes
font_01_sfnt_off00005ff9.bin
a78b51dcefec3957adc7b19d5501a566a66eaae17d1eb5223a18fbfd34a6c130
pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF9 9564 bytes