Malicious PDF — malware analysis report

Static analysis result for SHA-256 0035e94e5782a06c…

MALICIOUS

PDF

40.2 KB Created: 2020-08-11 03:58:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2add9421687f52a3da1c372ad496c533 SHA-1: a1132d044a51e588659626c66ffee854d323bd88 SHA-256: 0035e94e5782a06c0dba335e5e01a5626dde27122ca73dc445c3b567c1e0beb4
154 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, forming a link farm. One of the primary links, 'https://ttraff.com/pify?keyword=soil+profile+and+soil+horizon+pdf', is known to redirect to malicious infrastructure. The document's content and structure strongly suggest a phishing or malware distribution attempt by leveraging a deceptive link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.com/pify?keyword=soil+profile+and+soil+horizon+pdf
    • http://files.justkiddingtheatrecompanyinc.org/uploads/1/3/1/6/131606546/8ca666d4850.pdf
    • http://juzix.oachristchurch.org/uploads/1/3/2/6/132681352/146621.pdf
    • http://files.just-verandas.com/uploads/1/3/1/3/131379045/xobuxisedujus_wekabod.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/7180/7391/files/xowigerigewavalabuwak.pdf
    • https://cdn.shopify.com/s/files/1/0436/2013/9170/files/nenegevoboxajadejidisumij.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38655606666.pdf
    • https://cdn.shopify.com/s/files/1/0430/4899/2919/files/35095886532.pdf
    • https://cdn.shopify.com/s/files/1/0437/0182/9797/files/sijejosabofifo.pdf
    • https://cdn.shopify.com/s/files/1/0447/8589/3542/files/53776141809.pdf
    • https://cdn.shopify.com/s/files/1/0432/6513/0660/files/xazalagatuku.pdf
    • https://cdn.shopify.com/s/files/1/0430/8585/6919/files/rubanuliwawilaxesulabaro.pdf
    • https://cdn.shopify.com/s/files/1/0431/6961/1932/files/79207283006.pdf
    • https://cdn.shopify.com/s/files/1/0430/5492/3925/files/antietam_battlefield_map.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wogol.pdf
    • https://cdn.shopify.com/s/files/1/0433/7133/1734/files/junekexedazo.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005fb5.bin
d0d6e1a895f4b8928d5402edb7e1b8084810ed32fef6d429bbeecec1f57614b3
pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB5 5280 bytes
font_01_sfnt_off000071a2.bin
a8a1d3134b61add7d5d31b9ab0d6ac995910db3d3f24e01d58ad274c1bf9e292
pdf-font-stream PDF embedded font (sfnt) at offset 0x71A2 10148 bytes