Malicious PDF — malware analysis report

Static analysis result for SHA-256 226b35fbdb6a0855…

MALICIOUS

PDF

46.4 KB Created: 2020-08-14 10:47:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e527ae8a432b727aeb0e64bea134feb SHA-1: ae92f0b31de17bc943c457c1cb3e374aa6fe1828 SHA-256: 226b35fbdb6a08550b618785658eaf141b7d4a33866c56f81498b15cea16d830
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to domains associated with link farms and redirectors, as indicated by the PDF_SEO_LINK_FARM and PDF_MALICIOUS_REDIRECTOR_LINK heuristics. The document body, though heavily obfuscated, contains text related to movie downloads and a URL that aligns with the malicious redirector heuristic. The SE_CALLBACK_LURE heuristic suggests a phishing or scam pretext. The primary malicious IOC is the redirector URL, which likely leads to further 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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.cc/pify?keyword=chhello+divas+movie++worldfree4u
    • http://dusuluf.davisbaybc.com/uploads/1/3/2/8/132814930/jevosaputadomudutaxe.pdf
    • http://fodejufus.rotexsilversolutions.com/uploads/1/3/2/6/132681670/pewokanezim-dasud-wizekujovuromu-xofasomobatigok.pdf
    • http://files.naturaldisastercolor.net/uploads/1/3/1/6/131637362/sijinu.pdf
    • http://files.cetlgroup.org/uploads/1/3/0/8/130813320/lixorikasiposowi.pdf
    • http://files.flipscriptmedia.com/uploads/1/3/2/3/132302999/e2daa5d07a7d00c.pdf
    • https://cdn.shopify.com/s/files/1/0430/2703/8371/files/fefixirug.pdf
    • https://cdn.shopify.com/s/files/1/0432/4674/7803/files/wewuzelegasupijuzifog.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/74195332560.pdf
    • https://cdn.shopify.com/s/files/1/0437/7228/0981/files/38894402563.pdf
    • https://cdn.shopify.com/s/files/1/0431/7013/6230/files/cch_chuyn_file_sang_jpg_online.pdf
    • https://cdn.shopify.com/s/files/1/0434/0957/1989/files/alta_ruta_pirenaica.pdf
    • https://cdn.shopify.com/s/files/1/0434/2733/2252/files/84882819354.pdf
    • https://cdn.shopify.com/s/files/1/0431/0004/5469/files/59141358776.pdf
    • https://cdn.shopify.com/s/files/1/0432/5359/6310/files/logebuvi.pdf
    • https://cdn.shopify.com/s/files/1/0431/3019/2039/files/legokuxemalo.pdf
    • https://cdn.shopify.com/s/files/1/0429/6150/2374/files/zubokelusabeweludajepe.pdf
    • https://cdn.shopify.com/s/files/1/0434/8110/4541/files/jurigazuxumodunilosesu.pdf
    • https://cdn.shopify.com/s/files/1/0435/8003/1137/files/belt_conveyor_design_manual.pdf
    • https://cdn.shopify.com/s/files/1/0436/4645/1862/files/68160838292.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_off000077d6.bin
f1984cb7bdbb036c08b00bc4eb57d6e95b04a6db6a48b1fe4de34c9735adf8ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77D6 5292 bytes
font_01_sfnt_off000089c7.bin
deb2dd580d70eabf4d34dcf10fa178e05e417042cc878c9deee6ba574bcc06bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x89C7 10120 bytes

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