Malicious PDF — malware analysis report

Static analysis result for SHA-256 1cea34844729d352…

MALICIOUS

PDF

35.8 KB Created: 2020-08-16 22:20:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f51d86a1618d5edb8d04757b434268c SHA-1: ba7a88d29e357e718de399d6b3ddf8ae30fa4ed1 SHA-256: 1cea34844729d352bdee71770e60b1bfbfd6d77a62c4d452113a0fceaa39d33e
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, includes text related to a vehicle owner's manual and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a link farm heuristic further indicates an attempt to manipulate search engine results or distribute content via numerous links.

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.com/pify?keyword=2015+chevrolet+silverado+1500+owners+manual
    • http://files.minhtamcharity.org/uploads/1/3/0/7/130739835/9aa3e.pdf
    • http://dudavubex.joiedevivresantafe.com/uploads/1/3/1/3/131398455/81f399.pdf
    • http://files.flytotheskyteam.com/uploads/1/3/1/4/131453253/4730622.pdf
    • http://files.smashmouthsweetsllc.com/uploads/1/3/1/8/131872087/11d694f683076a.pdf
    • https://cdn.shopify.com/s/files/1/0434/0888/3870/files/tagojowobe.pdf
    • https://cdn.shopify.com/s/files/1/0427/5660/4070/files/69125150249.pdf
    • https://cdn.shopify.com/s/files/1/0428/9714/6019/files/sujosofavotodilogobu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/63908687591.pdf
    • https://cdn.shopify.com/s/files/1/0434/5787/2033/files/psa_nitrogen_gas_generator.pdf
    • https://cdn.shopify.com/s/files/1/0429/6415/6582/files/icao_annex_19_second_edition.pdf
    • https://cdn.shopify.com/s/files/1/0437/2617/6407/files/dissociative_identity_disorder_books.pdf
    • https://cdn.shopify.com/s/files/1/0428/7699/3702/files/porsche_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/8491/4583/files/45084177986.pdf
    • https://cdn.shopify.com/s/files/1/0432/5844/5979/files/lokewuvu.pdf
    • https://cdn.shopify.com/s/files/1/0432/6955/4344/files/pezobowurijigejegu.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_off00004e76.bin
5b644c81530046ca37383e34a5e5b7b179353e6c3303b4d528fd72a36816852e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E76 5684 bytes
font_01_sfnt_off000061ae.bin
d11f7fb0f4eb4a2bc284f2a078c34286fcdb365b73d58dc6d3445dda58f7fdd1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61AE 9532 bytes

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