Malicious PDF — malware analysis report

Static analysis result for SHA-256 1cec9a1b5d7e95e0…

MALICIOUS

PDF

46.0 KB Created: 2020-08-15 01:23:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4010df669ed9b4273f497629f192f065 SHA-1: ee6e6fdc5454cd37fea6911f4aba4246924cbfab SHA-256: 1cec9a1b5d7e95e09bb0f39c419643d4b01f36488eb008bb3ffd71d45b92be5f
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=dfmea+report+for+go+kart'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, including one to 'https://cdn.shopify.com/s/files/1/0434/0862/1719/files/ninafogu.pdf'. The document body, though heavily obfuscated, contains text fragments that suggest a lure related to a 'dfmea report for go kart'. The primary intent appears to be redirecting the user to a malicious site.

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=dfmea+report+for+go+kart
    • http://ridilane.theresathorne.com/uploads/1/3/1/6/131606289/ff2437f5.pdf
    • http://files.susanadams.co.nz/uploads/1/3/1/4/131438538/feruwepawiledabin.pdf
    • http://files.ourcolourfulworld.com/uploads/1/3/1/8/131856956/dizilok.pdf
    • http://files.phinaafrique.com/uploads/1/3/1/8/131871849/0a7bb83af4a2.pdf
    • https://cdn.shopify.com/s/files/1/0434/0862/1719/files/ninafogu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0363/3051/files/26776021541.pdf
    • https://cdn.shopify.com/s/files/1/0435/9720/1576/files/nowup.pdf
    • https://cdn.shopify.com/s/files/1/0434/0498/4483/files/magubiwise.pdf
    • https://cdn.shopify.com/s/files/1/0435/2134/3647/files/lazeteduzuvivikevonar.pdf
    • https://cdn.shopify.com/s/files/1/0430/1737/1797/files/properties_of_probability_density_function.pdf
    • https://cdn.shopify.com/s/files/1/0434/5328/4519/files/yanmar_tractor_parts.pdf
    • https://cdn.shopify.com/s/files/1/0432/7384/6952/files/bexigufed.pdf
    • https://cdn.shopify.com/s/files/1/0436/3033/0019/files/tumunorif.pdf
    • https://cdn.shopify.com/s/files/1/0429/0763/1783/files/56783360778.pdf
    • https://cdn.shopify.com/s/files/1/0448/0348/9954/files/the_bro_code_barney_stinson.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jewaxepolirabosumasedud.pdf
    • https://cdn.shopify.com/s/files/1/0428/7424/1187/files/homemade_bandsaw_bearing_guides.pdf
    • https://cdn.shopify.com/s/files/1/0432/5651/2676/files/bokolo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a3e.bin
293ce751c19e45f7fb0357d933803138a8bd2c30b26130abaa6d58b5e64f038c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A3E 4708 bytes
font_01_sfnt_off00007a46.bin
f51968bcb64bfa0b319c32ccee868b4cf9fce6cc3196651efd564a32d2ed7f1c
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A46 10404 bytes
font_02_sfnt_off00009cdd.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9CDD 4324 bytes