Malicious PDF — malware analysis report

Static analysis result for SHA-256 add60af199b6dfb9…

MALICIOUS

PDF

52.1 KB Created: 2020-08-12 11:39:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 023e4a15d998e2a084fc6d662739d991 SHA-1: ef07b4ef4466f16e1a6e1c586c8531d4f4c069ef SHA-256: add60af199b6dfb949304754eea974f1fb819c7a854696bdd5ec0c922282c6fe
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 external PDF files hosted on Shopify. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=scope+creep+in+project+management+pdf'. This suggests the document is designed to funnel users through a link farm to potentially malicious destinations.

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=scope+creep+in+project+management+pdf
    • http://files.imaginationtheatrewi.org/uploads/1/3/2/7/132710671/kagavuwuxafimiwelami.pdf
    • http://files.tackleproducts.co.nz/uploads/1/3/1/4/131437689/zijukelemadig.pdf
    • http://files.tepoungamarae.org/uploads/1/3/1/1/131163867/1822058.pdf
    • http://baxog.travelandfellowship.com/uploads/1/3/1/6/131606289/gitibigiz-kurelato-tunedozuwow-ramaxajelugini.pdf
    • http://files.churchonthehillglenavon.com/uploads/1/3/1/3/131379639/polowanun-xegiguge-vefukabilob.pdf
    • https://cdn.shopify.com/s/files/1/0433/3341/9166/files/40932080583.pdf
    • https://cdn.shopify.com/s/files/1/0433/1136/6309/files/mavotozi.pdf
    • https://cdn.shopify.com/s/files/1/0432/6519/6197/files/museo_nacional_de_historia_castillo_de_chapultepec.pdf
    • https://cdn.shopify.com/s/files/1/0429/8945/3473/files/89531547141.pdf
    • https://cdn.shopify.com/s/files/1/0430/6763/7917/files/gejujokuxarufetat.pdf
    • https://cdn.shopify.com/s/files/1/0443/1472/2460/files/boule_de_suif_ekladata.pdf
    • https://cdn.shopify.com/s/files/1/0433/8899/3703/files/risk_assessment_book.pdf
    • https://cdn.shopify.com/s/files/1/0429/8434/1657/files/sogulegalokamafebidogox.pdf
    • https://cdn.shopify.com/s/files/1/0433/7795/0881/files/lodijogawivisatubinukale.pdf
    • https://cdn.shopify.com/s/files/1/0432/6454/0835/files/wekugimupenozijikufowuf.pdf
    • https://cdn.shopify.com/s/files/1/0431/6971/0241/files/giwuvefenusilogipe.pdf
    • https://cdn.shopify.com/s/files/1/0433/5376/8095/files/kagepamolaxubefafuturopa.pdf
    • https://cdn.shopify.com/s/files/1/0430/5397/3657/files/coordinate_geometry_notes.pdf
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/57385363849.pdf
    • https://cdn.shopify.com/s/files/1/0432/8603/6635/files/dazimi.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/
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/5738

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008dfc.bin
0dd2bcc37bb717daa48057ec470dc780337655d7987d4e45bd878c771faeb54f
pdf-font-stream PDF embedded font (sfnt) at offset 0x8DFC 5444 bytes
font_01_sfnt_off0000a061.bin
9cb186ffe4284de2d0d9cbfebbb81a28cee7c13ecfd7d4fd105ff02d0e117ad8
pdf-font-stream PDF embedded font (sfnt) at offset 0xA061 10220 bytes