Malicious PDF — malware analysis report

Static analysis result for SHA-256 e35112dfee82984c…

MALICIOUS

PDF

35.7 KB Created: 2020-08-12 20:56:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6046a1c3781baa3f87aeb3c4443b32d1 SHA-1: 6917a0fcba17fe97efc5822cbed8fcde2a2d7765 SHA-256: e35112dfee82984c6b9e76baab2d84d5d58a190546082b6369907d3f922dabd8
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF file contains embedded links that are part of a link farm, with one critical link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to a 'BMW X3 2019 owners manual pdf' and the malicious URL. This suggests a social engineering attack aiming to trick users into downloading further malicious content or visiting compromised sites.

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/wb?keyword=bmw%20x3%202019%20owners%20manual%20pdf
    • http://files.b-cozyhomedecor.com/uploads/1/3/0/9/130968921/vepapepawexibaputu.pdf
    • http://fasixudi.tastefulvoyages.com/uploads/1/3/0/9/130968921/rekefapebel_folivejarikomoz.pdf
    • http://nukalog.djdoom1.com/uploads/1/3/1/1/131164250/9584665.pdf
    • http://ralixub.pwdatoakcreekfarms.com/uploads/1/3/1/1/131164250/3654283.pdf
    • https://cdn.shopify.com/s/files/1/0437/2611/0885/files/6587369096.pdf
    • https://cdn.shopify.com/s/files/1/0431/3009/3728/files/80592958697.pdf
    • https://cdn.shopify.com/s/files/1/0430/7173/3917/files/koxataxakapal.pdf
    • https://cdn.shopify.com/s/files/1/0437/2683/1784/files/98145164386.pdf
    • https://cdn.shopify.com/s/files/1/0430/8749/5321/files/vimimuxizemutun.pdf
    • https://cdn.shopify.com/s/files/1/0433/9567/8357/files/gezize.pdf
    • https://cdn.shopify.com/s/files/1/0434/4945/0661/files/fujosigufupifodutesa.pdf
    • https://cdn.shopify.com/s/files/1/0433/5281/7832/files/wordly_wise_3000_book_6_lesson_4.pdf
    • https://cdn.shopify.com/s/files/1/0427/8976/5276/files/breatheology_free.pdf
    • https://cdn.shopify.com/s/files/1/0435/7311/7087/files/posujosive.pdf
    • https://cdn.shopify.com/s/files/1/0437/5206/3125/files/blade_runner_putlocker.pdf
    • https://cdn.shopify.com/s/files/1/0448/4002/6273/files/electric_renewable_energy_systems.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_off00004a60.bin
c2eba725870ac4385336e1db69111b3c9dab5d98cb8dc15eeef62a669f55ad88		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A60 6040 bytes
font_01_sfnt_off00005ee7.bin
13749a896001dbf05297a4533ff3b8ae4326f5284cc9e43cae98c424551de04c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE7 10284 bytes

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