Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5dcf003c8e0d28f…

MALICIOUS

PDF

39.9 KB Created: 2020-08-03 00:50:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 52c10e33da77be5d4509f1175ab3551e SHA-1: 2bee13374a31ae7a69f147e2e4215495b7e530b9 SHA-256: b5dcf003c8e0d28f50c64acd6b14ced83fcb2b051f32a7fabb73eade15fe26e2
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One of the primary links directs to a known malicious redirector, ttraff.com, which is likely used to obscure the final malicious destination. The document body, though partially corrupted, contains text related to a 'Sony cyber shot manual', suggesting a lure to entice users to click the embedded links.

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.com/pify?keyword=sony+cyber+shot+manual
    • http://sifakiru.philippine-tales.com/uploads/1/3/2/8/132815367/5523473.pdf
    • http://files.essentiallyalkaline.org/uploads/1/3/0/7/130775668/taromomapo_datufo.pdf
    • http://files.studioaase.ca/uploads/1/3/1/3/131381428/1939022.pdf
    • https://cdn.shopify.com/s/files/1/0436/7538/6021/files/lulujo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tunamowari.pdf
    • https://cdn.shopify.com/s/files/1/0438/7792/5019/files/64303455113.pdf
    • https://cdn.shopify.com/s/files/1/0432/7620/6240/files/72229696839.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/58829080427.pdf
    • https://cdn.shopify.com/s/files/1/0431/0728/7189/files/52782298913.pdf
    • https://cdn.shopify.com/s/files/1/0434/0498/4483/files/rotabizafazububemato.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99324429390.pdf
    • https://cdn.shopify.com/s/files/1/0437/0278/0057/files/tnvipsuite_play_it_again.pdf
    • https://cdn.shopify.com/s/files/1/0434/3077/2902/files/46311225343.pdf
    • https://cdn.shopify.com/s/files/1/0431/2052/5476/files/9492995509.pdf
    • https://cdn.shopify.com/s/files/1/0430/0180/7007/files/21991798975.pdf
    • https://cdn.shopify.com/s/files/1/0429/1254/6975/files/2004_polaris_sportsman_500_service_manual.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_off0000545a.bin
e5e44e5c3bb192852e89dab1096b730ee6d451f714d5200918ead67da63e4a22		 pdf-font-stream PDF embedded font (sfnt) at offset 0x545A 5384 bytes
font_01_sfnt_off00006683.bin
166610ebcd6bbb27b3d1d6326444c39509dfbf0f53193f1533d29b1ae5c99f59		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6683 14512 bytes

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