Malicious PDF — malware analysis report

Static analysis result for SHA-256 4eae90808f1fd386…

MALICIOUS

PDF

46.4 KB Created: 2020-08-19 09:32:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3dcf2032833378b64049ce8e00cc27da SHA-1: 2e72964d84ae8db12b343189f0739d2b56f30706 SHA-256: 4eae90808f1fd3862306c04562a441bfcab2a80a2ae56f4fc788107665d1e227
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including one pointing to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text suggesting a lure related to 'Acuerdos comerciales del peru pdf'. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or phishing pages.

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=acuerdos+comerciales+del+peru+pdf
    • http://wofifij.thecoffeehousefranklinshop.com/uploads/1/3/1/4/131438330/tijalegi.pdf
    • https://cdn.shopify.com/s/files/1/0439/1773/8152/files/nopil.pdf
    • https://cdn.shopify.com/s/files/1/0433/5131/0486/files/budezub.pdf
    • https://cdn.shopify.com/s/files/1/0431/9795/6256/files/sigeliwom.pdf
    • https://cdn.shopify.com/s/files/1/0432/3750/7240/files/1032056151.pdf
    • https://cdn.shopify.com/s/files/1/0433/3538/5243/files/video_editing_software_for_mobile_free.pdf
    • https://cdn.shopify.com/s/files/1/0435/3631/8616/files/wizoxoleruwo.pdf
    • https://cdn.shopify.com/s/files/1/0432/8167/8494/files/15863496677.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/52325197595.pdf
    • https://cdn.shopify.com/s/files/1/0437/6503/9261/files/fajuwejexu.pdf
    • https://cdn.shopify.com/s/files/1/0432/3665/5259/files/trane_air_conditioner_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/6924/3549/files/vinow.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_off0000679a.bin
c745b3b1438cc976473c4de7735388e81e6a7bbf1d6ebc3455af3417af04a170		 pdf-font-stream PDF embedded font (sfnt) at offset 0x679A 4988 bytes
font_01_sfnt_off00007885.bin
c0aea88ed054edc9eb038a49bb273b158a0b3ae9693c77641ba7d155219eeb23		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7885 11108 bytes
font_02_sfnt_off00009cfc.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9CFC 4324 bytes

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