Malicious PDF — malware analysis report

Static analysis result for SHA-256 882fe73bc856f1d2…

MALICIOUS

PDF

41.5 KB Created: 2020-08-17 05:26:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 84cbede46f898556ce980bd1d085a0b6 SHA-1: d5d73a993380c5b875857f618aea62e5914750f0 SHA-256: 882fe73bc856f1d2e19385f3e0e857d798b46e763c2c3b717e3ef85eb7e998a4
120 Risk Score

Malware Insights

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

The PDF document contains a mass of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though obfuscated, contains the text 'Formation avec les animaux en suisse' and the malicious URL, suggesting a lure to a phishing or malware distribution site. No scripts were extracted, but the PDF structure itself is used for malicious redirection.

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.cc/pify?keyword=formation+avec+les+animaux+en+suisse
    • http://files.jabramowitz.com/uploads/1/3/1/8/131859895/b527584e616339b.pdf
    • http://files.redtreefarmstead.com/uploads/1/3/2/6/132683088/7597282.pdf
    • http://files.kimseiterdogagility.com/uploads/1/3/1/4/131452821/bbaee0fbcc66.pdf
    • http://files.lesleylions.com/uploads/1/3/0/7/130739986/3950897.pdf
    • https://cdn.shopify.com/s/files/1/0432/0431/3247/files/pathophysiology_of_respiratory_acidosis.pdf
    • https://cdn.shopify.com/s/files/1/0437/3594/1274/files/70645466262.pdf
    • https://cdn.shopify.com/s/files/1/0429/3653/3151/files/1150885151.pdf
    • https://cdn.shopify.com/s/files/1/0432/4386/4228/files/busabetegobisudaxiko.pdf
    • https://cdn.shopify.com/s/files/1/0431/6191/1460/files/32837789289.pdf
    • https://cdn.shopify.com/s/files/1/0435/7367/4142/files/bewulalogumamedivakep.pdf
    • https://cdn.shopify.com/s/files/1/0436/0660/5987/files/bosetuxunafifovomi.pdf
    • https://cdn.shopify.com/s/files/1/0429/5652/1631/files/audiophile_test_cd.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/febipak.pdf
    • https://cdn.shopify.com/s/files/1/0428/9773/5843/files/5948629151.pdf
    • https://cdn.shopify.com/s/files/1/0435/8055/5419/files/38809875827.pdf
    • https://cdn.shopify.com/s/files/1/0433/1339/7924/files/wetedixezelatojusi.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_off00006060.bin
d660f136a5cb29d647931a6ff4359dcf6ff51a98967afe41c56927e9d6ff78b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6060 5028 bytes
font_01_sfnt_off00007166.bin
8f2ab187b37bc2b647850048097c14228e5d9a132025c16da2f0cad227925b1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7166 12248 bytes

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