Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca5a3f199f209b0b…

MALICIOUS

PDF

43.8 KB Created: 2020-08-05 12:01:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ebd2dd741868d306a2638077e92b97b SHA-1: 1420a8e6071f4581985cacfe85abff3c8035c16d SHA-256: ca5a3f199f209b0b81d9a90acb109883ba96c9c7bd6389a26f670044c51788fe
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to benign Shopify domains, but one critical link redirects to a known malicious infrastructure at `https://ttraff.cc/pify?keyword=junior+architect+cv+pdf`. This suggests a phishing or scam attempt, using a lure related to a 'junior architect cv pdf'. No scripts were extracted, and the document body is heavily obfuscated and unreadable.

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=junior+architect+cv+pdf
    • http://files.suefortgensartandprints.com/uploads/1/3/1/3/131381237/8168865.pdf
    • http://files.teachermrbenson.com/uploads/1/3/1/1/131163691/da410ad.pdf
    • http://lunisisov.andthatmeanscomfort.com/uploads/1/3/0/8/130815017/jezixewifiku.pdf
    • https://cdn.shopify.com/s/files/1/0432/9105/0142/files/walagakakikazexukuzo.pdf
    • https://cdn.shopify.com/s/files/1/0431/4418/3970/files/topidorani.pdf
    • https://cdn.shopify.com/s/files/1/0435/4385/5258/files/7560863017.pdf
    • https://cdn.shopify.com/s/files/1/0429/4891/9450/files/23407474129.pdf
    • https://cdn.shopify.com/s/files/1/0437/1211/8952/files/rs3_magic_armor.pdf
    • https://cdn.shopify.com/s/files/1/0433/6173/0718/files/wetaxanunuvetep.pdf
    • https://cdn.shopify.com/s/files/1/0436/9793/0393/files/mann_whitney_u_test_python.pdf
    • https://cdn.shopify.com/s/files/1/0429/7952/4759/files/netgear_wn_2000_rpt_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/1961/6935/files/6504024763.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/57515970725.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_off00006e8f.bin
267d0bd2012a10e722270573f0ea084f8dfca050a0d185f6a46b887f6fa6526c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E8F 5084 bytes
font_01_sfnt_off00007fe2.bin
0d89b9a8affe8e21eeb2cf61b202b65b7f307310ccf5a96ff0b1c3c3d6d7f134		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FE2 10272 bytes

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