Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1ca80f668b901cc…

MALICIOUS

PDF

44.8 KB Created: 2020-08-30 03:42:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 421d0c84dd8fb651a8719062acd5befe SHA-1: 6bedba0055ce4c2f8f1d24542e515be090e143b6 SHA-256: a1ca80f668b901ccd26e1d8dab2604ce10052940fc135b8c865333d6b0cfa98c
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 'https://ttraff.cc/wix?keyword=365+consejos+de+fotografia+pdf'. This URL is embedded within the document body, suggesting a social engineering lure related to photography tips. The presence of a mass external PDF link farm further indicates a malicious intent to distribute or redirect users to harmful content.

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/wix?keyword=365+consejos+de+fotografia+pdf
    • https://cdn.shopify.com/s/files/1/0429/6887/5157/files/salezizixiv.pdf
    • https://cdn.shopify.com/s/files/1/0437/6556/3549/files/j_stars_victory_vs_pc_download_crack.pdf
    • https://cdn.shopify.com/s/files/1/0439/8543/6830/files/81606995460.pdf
    • https://cdn.shopify.com/s/files/1/0437/2040/9256/files/nupexabakufepaliwesu.pdf
    • https://cdn.shopify.com/s/files/1/0438/2025/3344/files/5960340571.pdf
    • https://static.usrfiles.com/ugd/b8c837_2ac059802fc34f08872ac0a45fc587c4.pdf
    • https://static.usrfiles.com/ugd/4bb894_23a6d1d99dfa43fd9a23af2e7790c0db.pdf
    • https://static.usrfiles.com/ugd/f65518_e731ff4a3db2480b8295e1daba7c4f3e.pdf
    • https://static.usrfiles.com/ugd/fe83c3_3e95821aee8b4e95a95204073305eec0.pdf
    • https://cdn.shopify.com/s/files/1/0435/3264/8602/files/parts_of_the_body_worksheet_for_grade_1.pdf
    • https://cdn.shopify.com/s/files/1/0428/6332/9446/files/adjective_participle.pdf
    • https://cdn.shopify.com/s/files/1/0436/0319/8116/files/basic_bodice_block_pattern_drafting.pdf
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/lezaleminosukukan.pdf
    • https://static.usrfiles.com/ugd/b8c837_7ccc27ae87d3470b8452156fc45d0996.pdf
    • https://static.usrfiles.com/ugd/7f46b5_9d809ce814fb4f9080c35ec3d790c473.pdf
    • https://static.usrfiles.com/ugd/b8c837_d05f0c953a8b45b883990788c19958dd.pdf
    • https://static.usrfiles.com/ugd/b8c837_a4d831feda404e4c92f81e710a87819e.pdf
    • https://static.usrfiles.com/ugd/1d64af_be78d44141a54e72a3cda6673d9bb989.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_off00006708.bin
8ed049f22c8fbb1ed1aafd249c2f58a68d15b4bba3f205728c988fd4f5275ce4
pdf-font-stream PDF embedded font (sfnt) at offset 0x6708 5712 bytes
font_01_sfnt_off00007a7b.bin
5b0f1ed5d0fbe77c4cf03163e2797cffb683cbe3c131ccca9ddbb8f3e5b07d70
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A7B 14304 bytes