Malicious PDF — malware analysis report

Static analysis result for SHA-256 3097dde456864975…

MALICIOUS

PDF

42.1 KB Created: 2020-08-11 01:39:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ae5b35d0e55c650b1120073a40661bd3 SHA-1: feb0f0e4608a36bb86d138eda37e9f58614fc714 SHA-256: 3097dde45686497567eca95e82bde8d7d795e706ba315a758b8daa7ee5c331ac
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at ttraff.ru. This suggests a link farm or SEO poisoning technique used to distribute malicious content. The document body, though heavily corrupted, contains text related to 'airline industry overview pdf' and the malicious URL, reinforcing the lure. 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.ru/pify?keyword=airline+industry+overview+pdf
    • http://files.thebeautybarracuda.com/uploads/1/3/0/7/130775639/gabafo-zafinaxamafomot.pdf
    • http://files.georgiebull.com/uploads/1/3/1/0/131070925/zimabov.pdf
    • http://files.jacqulynjanna.com/uploads/1/3/0/7/130776516/doxenesagatan-lixoxadufana.pdf
    • http://loturej.projecthopemichigan.org/uploads/1/3/0/7/130775075/2315456.pdf
    • http://files.thebeamtravel.com/uploads/1/3/1/4/131411762/3592258.pdf
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/junubefojafivofibiz.pdf
    • https://cdn.shopify.com/s/files/1/0433/2938/8699/files/luzufazuwamisudubaxuvo.pdf
    • https://cdn.shopify.com/s/files/1/0432/0867/1394/files/attestation_d_hbergement_gouv_fr.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57032902602.pdf
    • https://cdn.shopify.com/s/files/1/0437/8961/5266/files/muxexunironozat.pdf
    • https://cdn.shopify.com/s/files/1/0434/6645/7254/files/89522376405.pdf
    • https://cdn.shopify.com/s/files/1/0430/8520/1561/files/lofudu.pdf
    • https://cdn.shopify.com/s/files/1/0428/7099/7151/files/fizevarilevobipiwidaxeb.pdf
    • https://cdn.shopify.com/s/files/1/0431/2137/7434/files/fazejuxizeragivasaw.pdf
    • https://cdn.shopify.com/s/files/1/0433/0484/5465/files/jexokudavugojen.pdf
    • https://cdn.shopify.com/s/files/1/0432/7243/7910/files/75090360304.pdf
    • https://cdn.shopify.com/s/files/1/0430/9581/8404/files/63919665164.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_off000065f5.bin
25efa04b131ac22a88cb2ec02fc8e43e6d312755f62b2193494d8e476c4d55a3
pdf-font-stream PDF embedded font (sfnt) at offset 0x65F5 5068 bytes
font_01_sfnt_off0000775b.bin
b952a677ea3b5f63be782bc4d6d39e90956b249b91a7a37073b0d85ea99b6049
pdf-font-stream PDF embedded font (sfnt) at offset 0x775B 10604 bytes