Malicious PDF — malware analysis report

Static analysis result for SHA-256 979cf8f7be559ad8…

MALICIOUS

PDF

45.4 KB Created: 2020-08-07 01:12:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bcf70a6da06b93d5a206939645695888 SHA-1: 8564c5a39ad74829dfef49704caa20a3a06034a0 SHA-256: 979cf8f7be559ad80a4f7ac54e96c297b61415d84695f32663e672ad7f558b1c
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass of external links, including a critical link to a known malicious redirector at 'https://ttraff.cc/pify?keyword=metal+forming+analysis+book+pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting the primary purpose is to redirect the user to malicious infrastructure. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=metal+forming+analysis+book+pdf
    • http://files.goodworks.org.uk/uploads/1/3/1/4/131437775/6222700.pdf
    • http://files.preciousinvestltd.com/uploads/1/3/1/4/131437018/e860e5206d3e28b.pdf
    • http://files.prabeer.org/uploads/1/3/0/7/130740158/38bd36c41.pdf
    • http://files.angelageddes.com/uploads/1/3/1/1/131164152/koxarinin_rerawasivaxipa_terilowij.pdf
    • https://cdn.shopify.com/s/files/1/0431/6305/8325/files/simple_business_plan_example.pdf
    • https://cdn.shopify.com/s/files/1/0433/2843/8427/files/poxorol.pdf
    • https://cdn.shopify.com/s/files/1/0437/5996/0218/files/41883803002.pdf
    • https://cdn.shopify.com/s/files/1/0433/0258/4480/files/lodaritejidagusiwiror.pdf
    • https://cdn.shopify.com/s/files/1/0428/7240/6179/files/18233326525.pdf
    • https://cdn.shopify.com/s/files/1/0432/9052/5849/files/41385182784.pdf
    • https://cdn.shopify.com/s/files/1/0433/7808/1955/files/galantis_runaway_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0431/5817/5906/files/47937345050.pdf
    • https://cdn.shopify.com/s/files/1/0435/5679/8627/files/91010906582.pdf
    • https://cdn.shopify.com/s/files/1/0430/6799/8362/files/8671290482.pdf
    • https://cdn.shopify.com/s/files/1/0429/2100/1119/files/70649839325.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_off0000658a.bin
81b4f7198da30960e0b2b9456e284a7252fe65445885bebcecc61888f0c4f769		 pdf-font-stream PDF embedded font (sfnt) at offset 0x658A 5460 bytes
font_01_sfnt_off0000780e.bin
1be3cbd17891ab638b26677b764af128187d64203a213309d259605c8fb18330		 pdf-font-stream PDF embedded font (sfnt) at offset 0x780E 10188 bytes
font_02_sfnt_off00009aec.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9AEC 4324 bytes

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