Malicious PDF — malware analysis report

Static analysis result for SHA-256 323f86bfe5282d88…

MALICIOUS

PDF

57.7 KB Created: 2020-08-13 23:47:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 662383a6e487b40aa4a60666faa4327c SHA-1: 720586d54a0bcd67c836828e3049599c6831b1ec SHA-256: 323f86bfe5282d88e2547f5ba9471e7d4130da3568a49272d80c4dc604766b7e
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically a URL that appears to be a lure for a Google extension related to Facebook videos. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the malicious nature of the primary redirector. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many hosted on cdn.shopify.com, suggesting an attempt to manipulate search results or distribute content widely. No scripts were extracted, but the presence of a malicious redirector and a link farm strongly suggests a phishing or scam attempt.

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=google+extension+facebook+video+er
    • http://files.angardencentre.co.nz/uploads/1/3/1/3/131380469/jupuk.pdf
    • http://files.keneuoe.com/uploads/1/3/2/6/132680796/kesafejisuvudowetev.pdf
    • http://xuwetefen.cookechiropracticcenter.com/uploads/1/3/0/8/130813765/xatixuroviv.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nunixa.pdf
    • https://cdn.shopify.com/s/files/1/0448/1400/8486/files/benzil_benzilic_acid_rearrangement_mechanism.pdf
    • https://cdn.shopify.com/s/files/1/0435/4267/5608/files/63172295224.pdf
    • https://cdn.shopify.com/s/files/1/0435/0813/8150/files/tokenepuxevibizen.pdf
    • https://cdn.shopify.com/s/files/1/0432/8043/3302/files/blood_relation_reasoning_tricks_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32177526878.pdf
    • https://cdn.shopify.com/s/files/1/0431/0233/9232/files/cengage_chemistry_class_11.pdf
    • https://cdn.shopify.com/s/files/1/0431/0840/1316/files/61060319955.pdf
    • https://cdn.shopify.com/s/files/1/0437/6294/2101/files/activity_based_costing_adalah.pdf
    • https://cdn.shopify.com/s/files/1/0432/2381/0203/files/50886167322.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007f20.bin
c754879f35cf667d5c5b0449bf7b7884ad17765573ae5fcd8bfe39c540121b62
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F20 2996 bytes
font_01_sfnt_off000089e2.bin
a5bacab7c6ef123e8af98262d24b90a14039a9fbf61ad3aca895f5f4c2c4ec2e
pdf-font-stream PDF embedded font (sfnt) at offset 0x89E2 5340 bytes
font_02_sfnt_off00009c2b.bin
a08207137bdc24c2687b1b4a82553df93ee72cb25cec41d89b4a6a3dd54db551
pdf-font-stream PDF embedded font (sfnt) at offset 0x9C2B 15396 bytes
font_03_sfnt_off0000cba8.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0xCBA8 4324 bytes