Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2d71de56d68f8ee…

MALICIOUS

PDF

61.3 KB Created: 2020-08-10 17:10:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 963a8f30e6a4824b6cf10760e1158438 SHA-1: e91ca1c83167018e18927223c1fce2f9013a3462 SHA-256: f2d71de56d68f8ee6b9fdfe1b2835fc9e761d863f971357822e459c00e7176cf
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is presented in the document body, disguised as a link to download an 'english story book pdf file'. The PDF also contains a large number of external links, many of which are likely part of a link farm to improve search engine ranking for malicious content. The primary malicious URL is 'https://ttraff.com/pify?keyword=english+story+book+pdf+file+download'.

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=english+story+book+pdf+file+download
    • http://files.studiosfinearts.com/uploads/1/3/2/6/132681204/zizaxovojenanamiliz.pdf
    • http://files.eullallia.com/uploads/1/3/1/4/131454816/xojamamuf.pdf
    • http://files.backwoodsdogboxes.com/uploads/1/3/1/4/131406827/4717485.pdf
    • http://panij.funnyjackmusic.com/uploads/1/3/0/7/130775432/1770561.pdf
    • http://files.matriarchevents.com/uploads/1/3/0/7/130775138/zarix.pdf
    • http://files.studi
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/biographical_essay_example.pdf
    • https://cdn.shopify.com/s/files/1/0438/3296/7318/files/git_bash_script.pdf
    • https://cdn.shopify.com/s/files/1/0432/1745/3211/files/11259983996.pdf
    • https://cdn.shopify.com/s/files/1/0432/9367/1588/files/anatomie_chirurgicale_de_l_estomac.pdf
    • https://cdn.shopify.com/s/files/1/0440/7135/4533/files/83307897861.pdf
    • https://cdn.shopify.com/s/files/1/0431/8691/3439/files/jagofuvoku.pdf
    • https://cdn.shopify.com/s/files/1/0437/1369/1799/files/vikis.pdf
    • https://cdn.shopify.com/s/files/1/0429/7926/2615/files/rejarufaximoxufafuvatex.pdf
    • https://cdn.shopify.com/s/files/1/0435/9333/4947/files/adaptive_reuse_extending_the_lives_of_buildings.pdf
    • https://cdn.shopify.com/s/files/1/0438/1373/2512/files/dakasapaguv.pdf
    • https://cdn.shopify.com/s/files/1/0432/6617/9230/files/sexonufuwobagawu.pdf
    • https://cdn.shopify.com/s/files/1/0432/4245/5195/files/kijekejikavewinaso.pdf
    • https://cdn.shopify.com/s/files/1/0431/9959/4656/files/midunatuxatotitixisude.pdf
    • https://cdn.shopify.com/s/files/1/0427/8901/1612/files/welorelagupu.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_off0000a932.bin
43425f6a5547c22455bf5d268e597ff772ec379c014f7b390bc1577642985a21
pdf-font-stream PDF embedded font (sfnt) at offset 0xA932 5656 bytes
font_01_sfnt_off0000bc87.bin
c2b4826b94a034faeefce9e4272603cbfac8b03d0db56627e147aa37833c4a25
pdf-font-stream PDF embedded font (sfnt) at offset 0xBC87 13736 bytes