Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa2ec31c7362fb42…

MALICIOUS

PDF

58.9 KB Created: 2020-08-24 20:10:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2cbfe8b49bea13f97e5367219cd69e3a SHA-1: eb33c0d7357200b48ac2b12a1f98ad4461c3b818 SHA-256: fa2ec31c7362fb42cbcece91c628bfa41f764b178c6cbf8e4d37354dc819ab54
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a link that redirects to malicious infrastructure, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to a job application follow-up and the malicious URL itself. The PDF_SEO_LINK_FARM heuristic indicates a large number of embedded links, likely for SEO manipulation or to host further malicious content. The SE_URGENCY_LURE heuristic suggests the document attempts to create a sense of urgency.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.ru/pify?keyword=follow+up+job+email+template
    • http://files.chalmerslondon.com/uploads/1/3/1/4/131414743/9045763.pdf
    • http://files.nyddc.com/uploads/1/3/0/9/130969628/xolisuzorav.pdf
    • http://files.rineyvilleoptimist.org/uploads/1/3/1/3/131380485/lozifu.pdf
    • https://cdn.shopify.com/s/files/1/0434/6635/8934/files/bartlett_s_book_of_quotations.pdf
    • https://cdn.shopify.com/s/files/1/0433/0120/8232/files/ff15_the_cure_for_insomnia_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/5358/8390/files/29994770038.pdf
    • https://cdn.shopify.com/s/files/1/0435/7003/6904/files/rdr2_murfree_brood_cave.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81603963226.pdf
    • https://cdn.shopify.com/s/files/1/0427/7587/1654/files/jisogikavilubotupiloxeg.pdf
    • https://cdn.shopify.com/s/files/1/0430/7720/6178/files/bhse_onkelz_heilige_lieder_album_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/0677/0843/files/whatsapp_for_windows_7_latest_version.pdf
    • https://cdn.shopify.com/s/files/1/0431/6204/2529/files/la_vida_en_sueo_calderon_dela_barca.pdf
    • https://cdn.shopify.com/s/files/1/0428/3564/0487/files/akashic_records_book_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0428/9275/5111/files/tasurelinejerit.pdf
    • https://cdn.shopify.com/s/files/1/0461/0690/2691/files/73169789067.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_off00009ce8.bin
0c6266954e89cfca8522ea7e94bc97c4e30555472f04403901a55497230b7fed
pdf-font-stream PDF embedded font (sfnt) at offset 0x9CE8 4728 bytes
font_01_sfnt_off0000ad11.bin
ace6ccc21fe3140357bea5798bbbdd460482abadd50e9b059e5d15886733e848
pdf-font-stream PDF embedded font (sfnt) at offset 0xAD11 10564 bytes
font_02_sfnt_off0000d093.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230
pdf-font-stream PDF embedded font (sfnt) at offset 0xD093 4324 bytes