Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f000a360c3d79fe…

MALICIOUS

PDF

40.4 KB Created: 2020-08-18 17:03:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e9f171d7938f07a97b3e668e67984eb SHA-1: b8de07b9c213a2c94072c2c48f2c88204a91674a SHA-256: 3f000a360c3d79fe830e5f437f0180cfeda413523f53a41ca5c970808810b5ad
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to product names and the redirector URL, suggesting a lure to a malicious site. The presence of a link farm heuristic further indicates an attempt to distribute malicious content through numerous 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.cc/pify?keyword=dream+on+me+traveler+portable+bassinet+sheets
    • http://files.thehudsonsheafoundation.com/uploads/1/3/0/9/130969748/zajobomoba.pdf
    • http://zelinarez.premierbeachpropertymanagement.com/uploads/1/3/0/7/130775734/9779700.pdf
    • https://cdn.shopify.com/s/files/1/0432/0083/9841/files/14151003178.pdf
    • https://cdn.shopify.com/s/files/1/0428/1335/8247/files/xovelafariforel.pdf
    • https://cdn.shopify.com/s/files/1/0428/0126/6851/files/ropeja.pdf
    • https://cdn.shopify.com/s/files/1/0438/1730/4226/files/41329075535.pdf
    • https://cdn.shopify.com/s/files/1/0438/0209/9873/files/72057888225.pdf
    • https://cdn.shopify.com/s/files/1/0430/0813/1233/files/45142456048.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/99397771733.pdf
    • https://cdn.shopify.com/s/files/1/0435/0178/1156/files/legend_of_drizzt_adventure_book.pdf
    • https://cdn.shopify.com/s/files/1/0440/8741/0840/files/can_you_put_animated_gif_in.pdf
    • https://cdn.shopify.com/s/files/1/0433/2368/7067/files/49867429627.pdf
    • https://cdn.shopify.com/s/files/1/0447/5971/1898/files/aisc_steel_construction_manual_14th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0431/1157/9809/files/mawipikefubutupuwamopuja.pdf
    • https://cdn.shopify.com/s/files/1/0428/8974/0441/files/tixamukezirideneso.pdf
    • https://cdn.shopify.com/s/files/1/0427/6148/6503/files/jilifezojulen.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_off000053db.bin
1c1613103d753c0c859bde923bd7bad8271edaf2224a52283f022a29f83d1d6d
pdf-font-stream PDF embedded font (sfnt) at offset 0x53DB 5044 bytes
font_01_sfnt_off000064c4.bin
9f6822fcf60833b8512d080a77d7876f0e00810edd481bcf5ef681ff1d822512
pdf-font-stream PDF embedded font (sfnt) at offset 0x64C4 9808 bytes
font_02_sfnt_off00008658.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x8658 4324 bytes