Malicious PDF — malware analysis report

Static analysis result for SHA-256 9337ede1f774b0e0…

MALICIOUS

PDF

46.5 KB Created: 2020-08-07 09:35:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 75d5c3946fb2ef024ca752b18030f95a SHA-1: 56712287b92dff9b963b72617801353ad576dd95 SHA-256: 9337ede1f774b0e041b6df2d663e49544812714520257b3e8ae23203ce6e1212
120 Risk Score

Malware Insights

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

The PDF contains numerous links, with one critical heuristic identifying a malicious redirector. The document body, though partially corrupted, contains text suggesting it is a 'social anxiety assessment pdf' and includes the malicious URL. This indicates a phishing or scam attempt designed to redirect users to malicious infrastructure. No scripts were extracted, limiting the analysis of further payload delivery.

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.ru/pify?keyword=social+anxiety+assessment+pdf
    • http://files.hiddensuccesstactical.com/uploads/1/3/2/6/132696280/9294925.pdf
    • http://files.thomasachadwick.com/uploads/1/3/2/7/132740435/jotekisisisi-musegok-savubiv.pdf
    • http://files.karalrooney.com/uploads/1/3/2/7/132740234/7439304.pdf
    • https://cdn.shopify.com/s/files/1/0432/8757/6740/files/tetururorepurazazila.pdf
    • https://cdn.shopify.com/s/files/1/0431/1715/0368/files/symbolic_interaction_theory_sociology.pdf
    • https://cdn.shopify.com/s/files/1/0431/5892/9570/files/bcs_book_file_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/4115/2406/files/19186278579.pdf
    • https://cdn.shopify.com/s/files/1/0428/4101/4438/files/41860056612.pdf
    • https://cdn.shopify.com/s/files/1/0437/1401/9496/files/wedekesiwowanavevetarexo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nimapudusakodinufuzexive.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71061356311.pdf
    • https://cdn.shopify.com/s/files/1/0430/5285/9543/files/antisosyal_kiilik_bozukluu.pdf
    • https://cdn.shopify.com/s/files/1/0440/4376/3862/files/wufeduwaloxejunekoxa.pdf
    • https://cdn.shopify.com/s/files/1/0438/9571/8040/files/notibirotimevilegade.pdf
    • https://cdn.shopify.com/s/files/1/0431/1996/8417/files/wifarupigolebabafonorilon.pdf
    • https://cdn.shopify.com/s/files/1/0429/9096/0799/files/15881505941.pdf
    • https://cdn.shopify.com/s/files/1/0432/4166/8775/files/lil_wayne_mp3_download.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_off000069f9.bin
d0c641d6019cdd4beb5f0245570979af3cf62607b0caa1a17a5eb4fc2e162c78
pdf-font-stream PDF embedded font (sfnt) at offset 0x69F9 5268 bytes
font_01_sfnt_off00007bd0.bin
6aa0112d1ce9038fad5a3351f7056b9bb717e2e10b14ee3635399f15ea2bdf41
pdf-font-stream PDF embedded font (sfnt) at offset 0x7BD0 10560 bytes
font_02_sfnt_off00009ee3.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x9EE3 4324 bytes