Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2d3fcd95392d8f4…

MALICIOUS

PDF

40.5 KB Created: 2020-08-14 03:11:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 50395b81096a575f7f8bf32376a2539f SHA-1: 6fb8bb9b6f3108568dbfcffd18eb70cad32c9343 SHA-256: e2d3fcd95392d8f4a696e7f518b8c8f364a552c9abfa0cd79a16636e1083f81b
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a technique often used to create link farms for SEO manipulation or to redirect users to malicious sites. One prominent URL, 'https://ttraff.com/pify?keyword=baby+shower+boy+invitations+templates', is identified as a malicious redirector. The document body, though partially corrupted, contains text related to invitations, suggesting a lure to disguise the malicious intent. The presence of a mass external PDF link farm further supports the malicious nature of the document.

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=baby+shower+boy+invitations+templates
    • http://files.bethscussel.com/uploads/1/3/1/3/131383247/8856939.pdf
    • http://files.materials-glasgow.org/uploads/1/3/1/4/131437376/puwedenuvosube-karefafa-mowasuguroziku-gufob.pdf
    • http://files.redwingfarm.net/uploads/1/3/1/6/131637273/b60dea50d597c8d.pdf
    • http://files.kirkmahoe.com/uploads/1/3/2/8/132814147/bubatuje_vebedorogumeg.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53978683100.pdf
    • https://cdn.shopify.com/s/files/1/0436/5081/0014/files/75988826308.pdf
    • https://cdn.shopify.com/s/files/1/0432/2879/0946/files/benefits_of_work_life_balance.pdf
    • https://cdn.shopify.com/s/files/1/0438/4813/8912/files/68690991712.pdf
    • https://cdn.shopify.com/s/files/1/0431/9055/0679/files/brochure_egypt.pdf
    • https://cdn.shopify.com/s/files/1/0428/9291/8937/files/xokixe.pdf
    • https://cdn.shopify.com/s/files/1/0429/0710/7495/files/jifelusilineme.pdf
    • https://cdn.shopify.com/s/files/1/0432/6768/6558/files/adjective_noun_verb_list.pdf
    • https://cdn.shopify.com/s/files/1/0436/5156/3670/files/bank_services.pdf
    • https://cdn.shopify.com/s/files/1/0437/3636/7265/files/dudagutub.pdf
    • https://cdn.shopify.com/s/files/1/0431/1236/6231/files/lunuzoxuzasuli.pdf
    • https://cdn.shopify.com/s/files/1/0434/5951/0425/files/budgeting_in_accounting.pdf
    • https://cdn.shopify.com/s/files/1/0431/0636/9687/files/bemotavukuzexopi.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_off00005646.bin
bda8269f55c399f22c1f6fa2739ad156ad4f947bd5f966458f0e4cab31634a78
pdf-font-stream PDF embedded font (sfnt) at offset 0x5646 5500 bytes
font_01_sfnt_off000068e5.bin
c2a611687be9960a5766c76ae2635220fb1384afe31716d6defff9b7d371d54e
pdf-font-stream PDF embedded font (sfnt) at offset 0x68E5 14380 bytes