Malicious PDF — malware analysis report

Static analysis result for SHA-256 c632c758b57fecba…

MALICIOUS

PDF

112.4 KB Created: 2020-08-19 03:32:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9f375f4c2a07fbdafa33fdc9879aac8a SHA-1: 1d1aedf764d83f9125ca6953a23250e38b3a7be5 SHA-256: c632c758b57fecbafc4b7d9f390c92ceef9d147003cca28a546f5aab70e37daa
150 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large number of external links, suggesting a link farm or phishing attempt. The ML classifier also strongly indicated maliciousness. The primary malicious URL identified is ttraff.com, which is known for redirecting to malicious content. The document body contains the same URL, reinforcing its role in the attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=bengali+song+lyrics
    • http://kipegef.phstravelclub.org/uploads/1/3/0/7/130775840/visogif.pdf
    • https://cdn.shopify.com/s/files/1/0435/4532/9832/files/61868598806.pdf
    • https://cdn.shopify.com/s/files/1/0436/2017/1936/files/address_in_us_format.pdf
    • https://cdn.shopify.com/s/files/1/0446/3312/9123/files/first_law_of_motion_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/75505560659.pdf
    • https://cdn.shopify.com/s/files/1/0429/2267/2284/files/chiari_malformation_type_1_death_rate.pdf
    • https://cdn.shopify.com/s/files/1/0430/6167/4133/files/zubusexilulibozebamofad.pdf
    • https://cdn.shopify.com/s/files/1/0433/9345/0134/files/paxixef.pdf
    • https://cdn.shopify.com/s/files/1/0430/8851/1130/files/kabuwisumojujatopotawesir.pdf
    • https://cdn.shopify.com/s/files/1/0429/7365/9292/files/shirt_sewing_patterns.pdf
    • https://cdn.shopify.com/s/files/1/0431/7344/5792/files/catalogo_bendix_zen.pdf
    • https://cdn.shopify.com/s/files/1/0436/2344/8736/files/zezukejem.pdf
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/fifowotovipejigilanekesad.pdf
    • https://cdn.shopify.com/s/files/1/0429/3967/8886/files/53403835855.pdf
    • https://cdn.shopify.com/s/files/1/0428/8207/2743/files/kumazun.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_off000179ee.bin
fb73c5d6068056b658f8e6236d198ae63fe66b75eceece8df7a34a093a58c49c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x179EE 5116 bytes
font_01_sfnt_off00018b6b.bin
d93254979bce6816192ba159d0bb6a4aaaae9d564d008b29ce052e71e510f2d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18B6B 13756 bytes

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