Malicious PDF — malware analysis report

Static analysis result for SHA-256 89fa1ac3e8a597b1…

MALICIOUS

PDF

46.0 KB Created: 2020-08-07 19:19:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92fb7a7b58bc1d8feb49017a1532d97b SHA-1: 0a86ebfaaa3d997a70f457938d924a95fc3dc2e5 SHA-256: 89fa1ac3e8a597b1bdb135e217a4a58a58b8f56e8245ab0687cf3a3be9272a2c
120 Risk Score

Malware Insights

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

The PDF file contains a link farm and a specific malicious redirector URL, 'https://ttraff.cc/pify?keyword=microbial+genetics+and+molecular+biology+pdf'. This URL is designed to lure users by appearing to offer academic content, but it redirects to malicious infrastructure. The presence of numerous links to PDF files hosted on Shopify, combined with the malicious redirector, indicates a phishing or social engineering attempt to drive traffic to harmful sites.

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=microbial+genetics+and+molecular+biology+pdf
    • http://files.ostervillegardenclub.org/uploads/1/3/2/8/132814848/japuxukanidavowoda.pdf
    • http://files.morandoopress.com/uploads/1/3/2/8/132814220/6664212.pdf
    • http://files.moonflowerproduction.com/uploads/1/3/1/3/131378932/naxufapurokusoj.pdf
    • https://cdn.shopify.com/s/files/1/0429/6700/7386/files/nitum.pdf
    • https://cdn.shopify.com/s/files/1/0432/9714/4990/files/kerulageripafawibij.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zorosibal.pdf
    • https://cdn.shopify.com/s/files/1/0430/3706/5370/files/63846216312.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/74098669839.pdf
    • https://cdn.shopify.com/s/files/1/0431/8530/7808/files/96933465119.pdf
    • https://cdn.shopify.com/s/files/1/0433/9014/0572/files/demyer_neurologic_examination_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/9723/5363/files/17144192230.pdf
    • https://cdn.shopify.com/s/files/1/0431/0184/7708/files/vshare_ios_9._0._1.pdf
    • https://cdn.shopify.com/s/files/1/0433/6500/7509/files/volide.pdf
    • https://cdn.shopify.com/s/files/1/0430/4646/9793/files/zikugivatepixegoxofe.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_off00006685.bin
6b397fcbd7ceac1739d9d800cbf79ac78764bb1f1ab71c47ce8fce29d100b04d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6685 5724 bytes
font_01_sfnt_off000079fc.bin
bc377c1d387724d734cf2188bb8191155001c9de665f33de07ca413a849eb042
pdf-font-stream PDF embedded font (sfnt) at offset 0x79FC 15116 bytes