Malicious PDF — malware analysis report

Static analysis result for SHA-256 97611a16537fe2fa…

MALICIOUS

PDF

45.8 KB Created: 2020-08-08 20:52:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9b4039cbd01679082ad081bbccf5ca6a SHA-1: bf063e8214df00defa66c4e01a65d13a136094e6 SHA-256: 97611a16537fe2faf8bb28fa09d517ad1d7aec773832d3f652d580d4c4967159
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is used in a lure for 'After Effects 2020'. The document body also contains this URL and a call-to-action phrase, indicating a phishing attempt. The PDF also hosts a large number of links to other PDFs, likely for SEO manipulation to improve search engine ranking for malicious content.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=after+effects+2020+pdf
    • http://files.familyeyecarelancaster.com/uploads/1/3/0/9/130969340/5052153.pdf
    • http://files.ohiospfrx.com/uploads/1/3/1/8/131871466/bibisirujibule_wopemazidadowaz.pdf
    • http://files.wanderlittles.com/uploads/1/3/1/3/131383892/kerepaxirid.pdf
    • http://files.kwtintl.com/uploads/1/3/1/3/131379899/xizipuviwagozuvu.pdf
    • http://nikorowex.talithakauffmanphotography.com/uploads/1/3/0/7/130740141/davikafawalodiz.pdf
    • https://cdn.shopify.com/s/files/1/0438/0344/3361/files/sowivopuvule.pdf
    • https://cdn.shopify.com/s/files/1/0431/2553/8965/files/crimsons_room_walkthrough.pdf
    • https://cdn.shopify.com/s/files/1/0429/7401/9740/files/gasigama.pdf
    • https://cdn.shopify.com/s/files/1/0438/3195/1517/files/cheyenne_movie_times.pdf
    • https://cdn.shopify.com/s/files/1/0431/6132/1634/files/pororobixike.pdf
    • https://cdn.shopify.com/s/files/1/0444/0604/6886/files/gauss_jordan_elimination_matlab.pdf
    • https://cdn.shopify.com/s/files/1/0432/2813/5591/files/essential_agricultural_science_textbook_for_senior_secondary_school.pdf
    • https://cdn.shopify.com/s/files/1/0430/4338/9597/files/coherence_therapy.pdf
    • https://cdn.shopify.com/s/files/1/0434/5420/2018/files/gomanunewogemida.pdf
    • https://cdn.shopify.com/s/files/1/0431/0705/7825/files/69470020301.pdf
    • https://cdn.shopify.com/s/files/1/0429/3191/2857/files/dalavub.pdf
    • https://cdn.shopify.com/s/files/1/0428/1748/7011/files/mafebafedenimovirizon.pdf
    • https://cdn.shopify.com/s/files/1/0429/5078/7231/files/42845835770.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_off000074c2.bin
fca3d19d8e921a5d48e4201d787b7f6a962fb24c7fec566b6466a47c537ae1ea
pdf-font-stream PDF embedded font (sfnt) at offset 0x74C2 5172 bytes
font_01_sfnt_off00008676.bin
22be0d4176d93cd962ec99a0177eb81c95af82f171a4a365a205886679b76d6a
pdf-font-stream PDF embedded font (sfnt) at offset 0x8676 10588 bytes