Malicious PDF — malware analysis report

Static analysis result for SHA-256 af9092e0e097a2fb…

MALICIOUS

PDF

33.6 KB Created: 2020-08-19 18:31:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f6298075bd044f76b3180a663e41b59 SHA-1: f82795c2155c5a8475d3bc234113170bb20744f3 SHA-256: af9092e0e097a2fbf18b6416f9945f7ec31aa150b2c08ec0cba2f1a59add5051
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link

The PDF file contains a high number of embedded links, many of which point to a link farm hosted on Shopify. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is likely intended to lead the user to a malicious site. The document body contains obfuscated text and a prominent link to the malicious redirector, suggesting a social engineering lure.

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=banjara+whatsapp+video
    • http://pezim.alabama-lera.com/uploads/1/3/0/9/130969656/2295719.pdf
    • http://fapojoxap.chrome57band.com/uploads/1/3/1/4/131407493/gapavam.pdf
    • http://wapugasuf.wyoasc.org/uploads/1/3/1/4/131452816/d1a08.pdf
    • https://cdn.shopify.com/s/files/1/0435/6246/7489/files/in_the_bleak_midwinter_piano_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0433/3862/9275/files/cereal_box_book_report_template.pdf
    • https://cdn.shopify.com/s/files/1/0431/7370/7925/files/charminar_kannada_film.pdf
    • https://cdn.shopify.com/s/files/1/0438/8762/4344/files/90017515423.pdf
    • https://cdn.shopify.com/s/files/1/0440/0673/6037/files/fususuxenoloxeparej.pdf
    • https://cdn.shopify.com/s/files/1/0436/8682/2053/files/tizubedepagowinem.pdf
    • https://cdn.shopify.com/s/files/1/0428/5077/9295/files/mejanijadepeniresonota.pdf
    • https://cdn.shopify.com/s/files/1/0432/3429/5966/files/fipakazirifi.pdf
    • https://cdn.shopify.com/s/files/1/0432/3993/2064/files/mamukuzidavidox.pdf
    • https://cdn.shopify.com/s/files/1/0431/8668/4068/files/xivulubuneromevobid.pdf
    • https://cdn.shopify.com/s/files/1/0435/1868/9434/files/14422699523.pdf
    • https://cdn.shopify.com/s/files/1/0430/8795/4073/files/adobe_reader_app_for_computer.pdf
    • https://cdn.shopify.com/s/files/1/0434/2087/6962/files/70497776762.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_off0000471c.bin
dfc4bd6d6e77a7da518e1ac7e572f1fee51b9da7c77024ab0fefe42594f36dc3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x471C 5292 bytes
font_01_sfnt_off0000592c.bin
831ade9233a799b524d3897e7c9f6f776093fedd8a10ce005929554df978e60e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x592C 9484 bytes

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