Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6fd6e1f892dffc3…

MALICIOUS

PDF

45.0 KB Created: 2020-07-16 03:05:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 95004988f2ec4f065e22f4ee41c4e1ef SHA-1: d3221113fe85506c3fe395f1e9e8e1390d8712fb SHA-256: b6fd6e1f892dffc3953904f75a550b8d5a34e31aed976eb0200e6a5329e7d721
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. One of the primary links directs to a known malicious redirector, ttraff.cc, disguised as a search result for a printable world map. The document body is heavily obfuscated, but the presence of 'World map a4 printable pdf' suggests a lure to disguise the malicious intent. No scripts were extracted from this sample.

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/wb?keyword=world%20map%20a4%20printable%20pdf
    • http://files.homechoiceplanners.com/uploads/1/3/1/0/131070450/6860974.pdf
    • http://files.elixirespressobar.com/uploads/1/3/0/8/130814205/9948b1ab73ae.pdf
    • http://files.oncogenes.net/uploads/1/3/1/4/131483034/6543654.pdf
    • https://cdn.shopify.com/s/files/1/0430/4843/5861/files/64078760410.pdf
    • https://cdn.shopify.com/s/files/1/0431/7564/1247/files/pezolamak.pdf
    • https://cdn.shopify.com/s/files/1/0427/8845/4559/files/jibigodikutusumiwowujaros.pdf
    • https://cdn.shopify.com/s/files/1/0431/8904/3358/files/jepuxisuwefinegopibulo.pdf
    • https://cdn.shopify.com/s/files/1/0432/3000/3358/files/sesotepoxosuv.pdf
    • https://zetirufim.files.wordpress.com/2020/06/mezigur.pdf
    • https://tudigaj.files.wordpress.com/2020/07/tarudemuloxireso.pdf
    • https://xalezateratu473236147.files.wordpress.com/2020/07/69360340781.pdf
    • https://ludofinat.files.wordpress.com/2020/06/simuwepatikekafoxipi.pdf
    • https://sunokowezepe.files.wordpress.com/2020/06/jabapuwomidunov.pdf
    • https://cdn.shopify.com/s/files/1/0436/3013/3406/files/68132924885.pdf
    • https://cdn.shopify.com/s/files/1/0433/9515/4070/files/pevaxepiturikobawev.pdf
    • https://cdn.shopify.com/s/files/1/0429/8565/2375/files/13871945981.pdf
    • https://cdn.shopify.com/s/files/1/0433/0432/1184/files/22490670252.pdf
    • https://cdn.shopify.com/s/files/1/0430/1763/3949/files/rajeruf.pdf
    • https://cdn.shopify.com/s/files/1/0437/3712/0933/files/domamiwovewobamebajil.pdf
    • https://cdn.shopify.com/s/files/1/0431/8524/2269/files/25570893955.pdf
    • https://cdn.shopify.com/s/files/1/0432/5038/5051/files/75231748141.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/
    • https://cdn.shopify.com/s/files/1/0432/3000/3358/files/se

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000074ff.bin
d81c42d601b391e057935bee3ae576c8e954f2647d387a7a35e701a05581a746
pdf-font-stream PDF embedded font (sfnt) at offset 0x74FF 5036 bytes
font_01_sfnt_off0000860e.bin
3901dadd703428eec685e6a2928346123c0030a1989babbf3291e8ae27f5ec96
pdf-font-stream PDF embedded font (sfnt) at offset 0x860E 9520 bytes