Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb3cf01d4b56a778…

MALICIOUS

PDF

43.2 KB Created: 2020-08-09 07:37:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 492d276c11f21edcb09729975bd945ed SHA-1: f3e021bc051c9659dfee4bae011918a778dc91ac SHA-256: bb3cf01d4b56a77874fbed1156794febac979ec41b93e127966b5507398acf5f
120 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which, https://ttraff.cc/pify?keyword=official+rules+of+major+league+baseball+pdf, is identified as a malicious redirector. The document body, though partially corrupted, also contains this URL and appears to be a lure, presenting itself as "Official rules of major league baseball pdf" to entice users to click the malicious link. The presence of numerous other PDF links suggests a link farm or SEO poisoning attempt.

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.cc/pify?keyword=official+rules+of+major+league+baseball+pdf
    • http://dapuxa.theboho.ca/uploads/1/3/1/0/131070872/fakitasiji.pdf
    • http://files.girlofthegreatwhitenorth.com/uploads/1/3/1/3/131398177/240c219ef88ed.pdf
    • http://files.andrewdeckergamedev.com/uploads/1/3/1/3/131380120/feeaaca75c.pdf
    • https://cdn.shopify.com/s/files/1/0440/8921/3093/files/97248398732.pdf
    • https://cdn.shopify.com/s/files/1/0450/6569/9478/files/phim_3s._net_hong_kong.pdf
    • https://cdn.shopify.com/s/files/1/0432/4684/6107/files/53912880294.pdf
    • https://cdn.shopify.com/s/files/1/0429/6491/0243/files/99753802889.pdf
    • https://cdn.shopify.com/s/files/1/0431/9117/3278/files/bucket_elevator_chain.pdf
    • https://cdn.shopify.com/s/files/1/0431/5011/4965/files/a_b_z_forms_of_dna.pdf
    • https://cdn.shopify.com/s/files/1/0430/0485/4426/files/catalogo_andrea_escolar_2020.pdf
    • https://cdn.shopify.com/s/files/1/0432/5556/2398/files/piwakelodusew.pdf
    • https://cdn.shopify.com/s/files/1/0434/5066/3062/files/88374157395.pdf
    • https://cdn.shopify.com/s/files/1/0433/7437/9157/files/metabolic_syndrome_uk.pdf
    • https://cdn.shopify.com/s/files/1/0430/7812/3669/files/girawi.pdf
    • https://cdn.shopify.com/s/files/1/0431/1593/7948/files/40724374136.pdf
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/hey_now_you_re_a_rockstar.pdf
    • https://cdn.shopify.com/s/files/1/0436/9252/3675/files/90901239347.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_off00006752.bin
d2379247d843449279bab5180e6bf3d9146483c5c682a68d3282ee99c1bece5d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6752 5720 bytes
font_01_sfnt_off00007aae.bin
24143889003f74a5f10ec52335084731c6604ec61dbe1ef4d38d16e4a96f1ae5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AAE 10900 bytes

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