Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1078f0294fb524f…

MALICIOUS

PDF

71.4 KB Created: 2020-07-24 20:28:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54ca8129ba8e1e9db6da675995ba4ad1 SHA-1: b9c04f46a90aa9e13ad14de73af2fa5ba037e23b SHA-256: a1078f0294fb524f3bb5d66a37cc38673daa4d7764f845aa42aa3846e5126460
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, with a critical heuristic firing indicating a PDF link to known malicious redirector infrastructure. The primary malicious URL identified is 'https://ttraff.com/pify?keyword=songland+episode+guide'. Another significant URL, 'https://cdn.shopify.com/s/files/1/0430/4211/1650/files/60810949121.pdf', is part of a link farm. The document body is heavily obfuscated and does not provide clear textual lures.

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=songland+episode+guide
    • http://files.wendyscountrymarket.com/uploads/1/3/2/8/132814050/rukowigukifunax-luvikubadixares.pdf
    • http://files.valenty.com/uploads/1/3/2/7/132712514/e1e97bc75c8c44.pdf
    • http://files.loveliesandthings.com/uploads/1/3/0/9/130969603/9155400.pdf
    • http://files.modeltstemproject.com/uploads/1/3/0/9/130969427/mirekolat-xutimuledaweger.pdf
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/60810949121.pdf
    • https://cdn.shopify.com/s/files/1/0434/7848/3096/files/borefukulemizuzipoxe.pdf
    • https://cdn.shopify.com/s/files/1/0433/5288/3352/files/60291006270.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xutuxajaz.pdf
    • https://cdn.shopify.com/s/files/1/0432/7417/4622/files/fotefarilawavozojizuwu.pdf
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/41707809853.pdf
    • https://cdn.shopify.com/s/files/1/0433/3525/4171/files/39351450753.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/45598155969.pdf
    • https://cdn.shopify.com/s/files/1/0428/7217/6799/files/74993679920.pdf
    • https://cdn.shopify.com/s/files/1/0432/1941/9291/files/bopexivapu.pdf
    • https://cdn.shopify.com/s/files/1/0432/8774/0576/files/59405622583.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_off0000d2c8.bin
4d1e4bf54c3eb6e0c716cce030df91d3db09182b687e953a51eda5cb60655c16
pdf-font-stream PDF embedded font (sfnt) at offset 0xD2C8 4936 bytes
font_01_sfnt_off0000e38f.bin
621e5edfaac2b099f63202cdb1603b1c890c0d11d1d0b35f302e5c192bfe7c89
pdf-font-stream PDF embedded font (sfnt) at offset 0xE38F 14048 bytes