Malicious PDF — malware analysis report

Static analysis result for SHA-256 aabac20810243b59…

MALICIOUS

PDF

44.0 KB Created: 2020-08-10 07:01:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 52cde726a5df922e4a1e74d33416220f SHA-1: 6fd845843c54446e8cac0d1ad105fa7e09fc24b9 SHA-256: aabac20810243b59381c55ef905bccb68be6c8790539b5746f82022371c4cbde
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body and embedded links suggest a lure to download further content, with the primary malicious URL being https://ttraff.com/pify?keyword=cecilia+wang+novel+pdf. The file also contains a large number of external PDF links, many hosted on shopify.com, which is indicative of a link farm used for SEO poisoning or distributing malicious 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.com/pify?keyword=cecilia+wang+novel+pdf
    • http://solewa.remus-emsermann-lab.org/uploads/1/3/1/4/131409090/a257f09d.pdf
    • http://files.mynxbeautybar.ca/uploads/1/3/1/4/131407625/bokosiwalekiru.pdf
    • http://files.dihfs.org/uploads/1/3/2/6/132682471/lumofo_gukaduzoxuv.pdf
    • http://files.writingandrhetoricmke.com/uploads/1/3/0/7/130740200/814fcbd25f.pdf
    • https://cdn.shopify.com/s/files/1/0432/1627/3563/files/46934337327.pdf
    • https://cdn.shopify.com/s/files/1/0431/5666/8573/files/process_dynamics_and_control_3rd_edition.pdf
    • https://cdn.shopify.com/s/files/1/0428/3337/9487/files/vozeje.pdf
    • https://cdn.shopify.com/s/files/1/0430/7868/0730/files/33997267472.pdf
    • https://cdn.shopify.com/s/files/1/0445/6900/2143/files/69826991862.pdf
    • https://cdn.shopify.com/s/files/1/0433/2794/6904/files/wapeniv.pdf
    • https://cdn.shopify.com/s/files/1/0427/3229/0215/files/49679432725.pdf
    • https://cdn.shopify.com/s/files/1/0431/7754/1787/files/futowezatutaket.pdf
    • https://cdn.shopify.com/s/files/1/0430/6819/4965/files/sikezufipi.pdf
    • https://cdn.shopify.com/s/files/1/0430/4856/6933/files/advanced_english_grammar_for_high_learner.pdf
    • https://cdn.shopify.com/s/files/1/0431/0364/9954/files/55460333912.pdf
    • https://cdn.shopify.com/s/files/1/0429/6127/2995/files/babutizerol.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_off00006ea2.bin
b3bae2b9789089ded13056aa8722adb1c5b71c598daaac296e069714b8c539c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EA2 5108 bytes
font_01_sfnt_off00008039.bin
8246dc4dd77dbeca25f8066f1d26d25315f15dcb77c1227319844e2c44550dc5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8039 10492 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.