Malicious PDF — malware analysis report

Static analysis result for SHA-256 d75bbe1ea04bd7d2…

MALICIOUS

PDF

50.2 KB Created: 2020-08-07 15:10:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 89b3361c87c2de4576ded7c48e514976 SHA-1: 9f4032fa5a840a96ca96c1a06af0e22af267807d SHA-256: d75bbe1ea04bd7d21f94b7a02037160a398f3d174e99e013420c81835b3a8ed3
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'iso aperture shutter speed calculator pdf' and the URL itself, suggesting a lure. The presence of numerous embedded links, many pointing to Shopify, indicates a link farm strategy, likely to obscure the ultimate malicious destination.

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=iso+aperture+shutter+speed+calculator+pdf
    • http://files.peerpatient.com.au/uploads/1/3/0/7/130775868/fa6a4938e7498.pdf
    • http://files.edelweisshaus.com/uploads/1/3/0/9/130969967/dinipasegeseki.pdf
    • http://files.catarellaphoto.com/uploads/1/3/2/6/132681823/gokamuzisega-fegegix-tolelokazovojiz.pdf
    • https://cdn.shopify.com/s/files/1/0438/8651/0232/files/82825779226.pdf
    • https://cdn.shopify.com/s/files/1/0439/4034/8059/files/tutopiwivapesuzodedurekup.pdf
    • https://cdn.shopify.com/s/files/1/0430/4578/1665/files/kipus.pdf
    • https://cdn.shopify.com/s/files/1/0432/8649/5397/files/wumezozirewozojiwoxivotob.pdf
    • https://cdn.shopify.com/s/files/1/0430/5272/8474/files/73013607346.pdf
    • https://cdn.shopify.com/s/files/1/0431/9690/7678/files/a_stone_sat_still.pdf
    • https://cdn.shopify.com/s/files/1/0431/4752/6305/files/the_river_gary_paulsen_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/2681/5903/files/muworivajoru.pdf
    • https://cdn.shopify.com/s/files/1/0433/4891/8440/files/15434610367.pdf
    • https://cdn.shopify.com/s/files/1/0432/2839/7728/files/wimixoko.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27055139941.pdf
    • https://cdn.shopify.com/s/files/1/0432/4042/3592/files/53553333486.pdf
    • https://cdn.shopify.com/s/files/1/0429/7677/2250/files/4143888925.pdf
    • https://cdn.shopify.com/s/files/1/0429/5573/5193/files/98288020662.pdf
    • https://cdn.shopify.com/s/files/1/0438/2189/1746/files/nys_corrections_officer_exam_2017.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_off00008660.bin
031ae74ee13d92a5042cbece972b1dd6ca08bad7e58d321c2dadebcbc7e4394e
pdf-font-stream PDF embedded font (sfnt) at offset 0x8660 5180 bytes
font_01_sfnt_off000097fd.bin
b3cb949a3b903ff744790cb7fd2a7e43f9f31d6322ffb038a4d8854ba1389332
pdf-font-stream PDF embedded font (sfnt) at offset 0x97FD 10300 bytes