Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e9e01c1d67071b5…

MALICIOUS

PDF

46.0 KB Created: 2020-08-24 07:17:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f3f98498fb7276fde6bed7e7e0d0e76a SHA-1: 59273c370b77ce59e2e4534b8affdc91ce35fa99 SHA-256: 7e9e01c1d67071b5fe6e1663089184ea5dd0d62cb83e31b7f80eb646461b04df
128 Risk Score

Malware Insights

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

The PDF contains a link farm with numerous external links, including one pointing to a known malicious redirector at 'https://ttraff.ru/pify?keyword=labels+for+jars+free+template'. The presence of a 'download button' heuristic and the overall structure suggest a lure to download or navigate to malicious content. No scripts were extracted, limiting further analysis of the payload delivery mechanism.

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.ru/pify?keyword=labels+for+jars+free+template
    • http://files.snydersbuildings.com/uploads/1/3/0/7/130740090/90a777e4fe2593.pdf
    • http://botenibaz.mamss.org/uploads/1/3/1/1/131164250/1028684.pdf
    • http://files.aquawebinars.com/uploads/1/3/0/7/130739835/7360924.pdf
    • http://files.olivetreebiblebook.com/uploads/1/3/0/7/130776141/jemiga_bosinev_gowonosen.pdf
    • http://lititusog.monicadigiovanni.com/uploads/1/3/1/4/131437622/gerumima.pdf
    • https://cdn.shopify.com/s/files/1/0451/4558/7877/files/dubai_metro_green_line_map.pdf
    • https://cdn.shopify.com/s/files/1/0434/2513/6797/files/36052367681.pdf
    • https://cdn.shopify.com/s/files/1/0433/0576/2974/files/rozitix.pdf
    • https://cdn.shopify.com/s/files/1/0436/6290/1401/files/9390879047.pdf
    • https://cdn.shopify.com/s/files/1/0429/5219/6249/files/kia_cerato_2020_brochure.pdf
    • https://cdn.shopify.com/s/files/1/0432/6454/0840/files/11528831421.pdf
    • https://cdn.shopify.com/s/files/1/0438/4745/0789/files/63099830403.pdf
    • https://cdn.shopify.com/s/files/1/0435/5260/4319/files/skechers_performance_logo_vector.pdf
    • https://cdn.shopify.com/s/files/1/0438/0285/3538/files/80700874563.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_off00006a07.bin
765113485614fe1fb8e71201fb6b2e66f5ce6d76ad31f14ee1e40343ed43c320
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A07 4836 bytes
font_01_sfnt_off00007a7b.bin
759ccb0f2fd985009f5e48d80568663c1b1a9ab90abc7f6a079e6cc375be9ed5
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A7B 10120 bytes
font_02_sfnt_off00009d1d.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0x9D1D 4324 bytes