Malicious PDF — malware analysis report

Static analysis result for SHA-256 257543bd716a0c6e…

MALICIOUS

PDF

35.8 KB Created: 2020-08-11 21:58:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c8966fd744fe00cfe2cb33e35eaafa8 SHA-1: 5b379da756185e6d98112eff839f7f7d9445f795 SHA-256: 257543bd716a0c6ee4a57a2e92d7d6911d656db160d42cc90d62bc8cbfa332bb
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to benign Shopify domains, but one critical link redirects through ttraff.cc, a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Agricultural science grade 10 book pdf' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of a malicious redirector indicates an attempt to lead the user to a harmful site.

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=agricultural+science+grade+10+book+pdf
    • http://files.yashbangera.com/uploads/1/3/0/7/130738625/83486b04a35.pdf
    • http://files.workforcegateway.org/uploads/1/3/1/6/131606434/523783df.pdf
    • http://files.suzannewilliamson.net/uploads/1/3/1/4/131407111/3141609.pdf
    • http://files.bcbarns.com/uploads/1/3/1/4/131452922/9423379e34fd.pdf
    • https://cdn.shopify.com/s/files/1/0428/0372/4455/files/mumolaf.pdf
    • https://cdn.shopify.com/s/files/1/0428/0736/1703/files/23229805885.pdf
    • https://cdn.shopify.com/s/files/1/0428/6598/3655/files/96611733580.pdf
    • https://cdn.shopify.com/s/files/1/0432/2318/7614/files/77152681447.pdf
    • https://cdn.shopify.com/s/files/1/0432/0346/1283/files/bidujulez.pdf
    • https://cdn.shopify.com/s/files/1/0431/0017/6544/files/essentials_of_pathophysiology_study_guide.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zeranosorijajigafa.pdf
    • https://cdn.shopify.com/s/files/1/0427/4274/3207/files/34842438784.pdf
    • https://cdn.shopify.com/s/files/1/0427/4513/5260/files/bosofonilunozum.pdf
    • https://cdn.shopify.com/s/files/1/0429/8866/7034/files/60436142107.pdf
    • https://cdn.shopify.com/s/files/1/0434/6911/1449/files/3319119602.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_off00004bdf.bin
9701a3681596a2b5f3297f6813c81700270ac6ce44ba112f3f126c44cfa74d93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4BDF 5708 bytes
font_01_sfnt_off00005f5d.bin
2ba7181cc6b8bf9d1e4213a8bc896678087fa7b12429404527dab954c82c0b58		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F5D 10244 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.