Malicious PDF — malware analysis report

Static analysis result for SHA-256 e95f2dd65ccc8ed8…

MALICIOUS

PDF

39.2 KB Created: 2020-08-22 23:01:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5c526a60eee6adaf3a40c9f1e0bc56ba SHA-1: 3ff2a40e7ed2e9a7389fffbf01639f8a8754a8ac SHA-256: e95f2dd65ccc8ed841ed640720622e43e49a429ac78ed7d548d2d2e024c0d4ce
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector at 'ttraff.com'. This redirector is likely used to obscure the final malicious destination. The document body, though heavily obfuscated, contains the same lure text and URLs found in the heuristics, suggesting a social engineering attempt to trick users into clicking the malicious link for a supposed free download. No scripts were extracted, limiting the analysis to the PDF's structure and embedded 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=evermotion+archinteriors+vol+36+free
    • http://files.carrollcountycommunitycenter.org/uploads/1/3/1/4/131454523/7cbc233.pdf
    • http://madafi.jeremeleonard.net/uploads/1/3/0/8/130874493/03cf981655c607.pdf
    • http://baginuwe.ccfsealytestsite.com/uploads/1/3/0/7/130776031/417042.pdf
    • http://lapelin.imuamediagroup.com/uploads/1/3/0/9/130969061/kafepowo.pdf
    • http://files.madisonfirstchurchofgod.com/uploads/1/3/0/8/130874134/notiruvok.pdf
    • https://cdn.shopify.com/s/files/1/0444/5811/5239/files/xapofugajojovubopaguz.pdf
    • https://cdn.shopify.com/s/files/1/0434/5754/4342/files/5555714999.pdf
    • https://cdn.shopify.com/s/files/1/0431/1403/7409/files/pejamafepezifiwu.pdf
    • https://cdn.shopify.com/s/files/1/0430/6377/1293/files/formatting_output_in_java.pdf
    • https://cdn.shopify.com/s/files/1/0433/3908/8027/files/similar_triangles_worksheet_8th_grade.pdf
    • https://cdn.shopify.com/s/files/1/0435/5158/8507/files/7263974600.pdf
    • https://cdn.shopify.com/s/files/1/0430/9113/2567/files/flight_training_magazine.pdf
    • https://cdn.shopify.com/s/files/1/0429/0668/1497/files/girivejorelal.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/femepotufitaxaturu.pdf
    • https://cdn.shopify.com/s/files/1/0435/4070/9527/files/surah_al_mulk_latin_dan_arab.pdf
    • https://cdn.shopify.com/s/files/1/0428/6880/1695/files/nadupezopumatifawosisoji.pdf
    • https://cdn.shopify.com/s/files/1/0431/5951/9394/files/89552083639.pdf
    • https://cdn.shopify.com/s/files/1/0432/5166/3012/files/878726329.pdf
    • https://cdn.shopify.com/s/files/1/0437/8404/4705/files/partnership_agreement_contract.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_off000059fb.bin
420570972932f333e44445ced68b910dbf7a1938c93dfb4b0be9ba7f5eea7fe1
pdf-font-stream PDF embedded font (sfnt) at offset 0x59FB 5456 bytes
font_01_sfnt_off00006c57.bin
862a8424421b0eacebaafc467febbe5be6e72c0e0a6ea5cae1d03b763f009670
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C57 10292 bytes