Malicious PDF — malware analysis report

Static analysis result for SHA-256 f481e751fddcaf5d…

MALICIOUS

PDF

38.2 KB Created: 2020-07-08 20:21:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 05271a2af9b6720dab04301e81de6720 SHA-1: 034bfd4a49935e885cb075917e01ccd47e2d26bb SHA-256: f481e751fddcaf5d79bfca7d0df032c8bada6b6114c7f12db30953a70eb370d4
150 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, a technique commonly used in SEO poisoning attacks to drive traffic to malicious sites. The primary link identified directs to a known malicious redirector. The document body contains text related to a service manual, likely a lure to encourage clicks on the embedded malicious links.

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.com/wb?keyword=ashdown%20mag%20300%20service%20manual
    • http://files.infantmassagenewzealand.org/uploads/1/3/0/9/130969775/lulitibinix-farawep-dajixupe-panejupidede.pdf
    • http://files.jamesmatthewwilson.com/uploads/1/3/1/6/131637057/d1e23bb.pdf
    • http://files.willowwildedges.com/uploads/1/3/1/8/131856443/xukopiwome-tojazelapiz-kasivezobisu-sunezurawuse.pdf
    • http://files.focusedlearningsolutions.com/uploads/1/3/1/6/131636990/49d8e9.pdf
    • http://files.medfieldheightspto.com/uploads/1/3/1/0/131070190/joridesaz.pdf
    • http://files.kayliegroff.com/uploads/1/3/1/3/131384145/tikolepotufido.pdf
    • http://files.swaintaekwondo.co.uk/uploads/1/3/2/6/132681245/2408674.pdf
    • http://files.vancouverislandpremiumhardcandy.com/uploads/1/3/1/1/131164394/1201151.pdf
    • http://files.keepanopenmind.net/uploads/1/3/0/8/130814642/354913.pdf
    • http://files.josepblas.com/uploads/1/3/1/4/131437268/kiwinorubidosa.pdf
    • https://dolerosisin.files.wordpress.com/2020/07/ribakelikuxufitejivuk.pdf
    • https://nofedexof.files.wordpress.com/2020/06/rowonaxobefuwupisokovelaf.pdf
    • https://wuzisebulaka.files.wordpress.com/2020/07/41038306328.pdf
    • https://vudilofifo.files.wordpress.com/2020/07/ruvukesex.pdf
    • https://zotevewu.files.wordpress.com/2020/06/95875601961.pdf
    • https://fogojifoxuni.files.wordpress.com/2020/06/65269555598.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99839510681.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kulabegidubonigupux.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/70945418412.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sazofafusogowo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/doworefobose.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kuvesagapixunijibofalase.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/damegadunuje.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_off0000579e.bin
a3ae142baee952d933a1d6fbe007fee8b52f03352af1fe6b57643770a051dff7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x579E 5600 bytes
font_01_sfnt_off00006a7d.bin
11a995dba858550fcbc9d83789442ecc17365b9a33333d585599301f50fa15d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A7D 9888 bytes

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