Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ae7094fc336de34…

MALICIOUS

PDF

47.3 KB Created: 2020-08-20 04:38:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 775b00d312565639834f0395bc6faf91 SHA-1: f9c71fdde91ad6a896cbd81e9c05c8fcfb9849d5 SHA-256: 4ae7094fc336de34b11cd653ac29c8004f5b5ce7363b4b71185de6bb378b1f99
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.com/pify?keyword=sri+rudram+chamakam+pdf'. This indicates an attempt to direct users to malicious infrastructure. The document body, though heavily obfuscated, contains references to this URL and other PDF links, suggesting a link farm or phishing lure. 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.com/pify?keyword=sri+rudram+chamakam+pdf
    • http://files.meganssewingroom.com/uploads/1/3/0/8/130874063/7413376.pdf
    • http://kililugo.paintedtreasuresdenver.com/uploads/1/3/0/7/130775166/dajatap_jekeb_penepedapujes.pdf
    • http://files.rissmusicschool.com/uploads/1/3/1/1/131164313/gosuviruzifebetove.pdf
    • http://sejilizon.urbanrenewaljazz.com/uploads/1/3/0/9/130969204/fusamar.pdf
    • https://cdn.shopify.com/s/files/1/0428/3429/6988/files/fabumisunejew.pdf
    • https://cdn.shopify.com/s/files/1/0437/9879/0301/files/arapa_reniyorum_kitab.pdf
    • https://cdn.shopify.com/s/files/1/0433/5455/4533/files/86724991526.pdf
    • https://cdn.shopify.com/s/files/1/0430/8946/1410/files/vepufune.pdf
    • https://cdn.shopify.com/s/files/1/0428/3564/0487/files/akashic_records_book_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0436/0998/1085/files/sufigixubamowakusanov.pdf
    • https://cdn.shopify.com/s/files/1/0427/9464/7719/files/3112905592.pdf
    • https://cdn.shopify.com/s/files/1/0433/7002/1014/files/jujiraluregijodiberibiga.pdf
    • https://cdn.shopify.com/s/files/1/0435/8216/1053/files/penufujefegowuva.pdf
    • https://cdn.shopify.com/s/files/1/0434/5813/4182/files/d_backs_logo_template.pdf
    • https://cdn.shopify.com/s/files/1/0431/1685/5453/files/kiwisenesakokudibot.pdf
    • https://cdn.shopify.com/s/files/1/0433/3918/6344/files/naive_bayesian_classifier.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_off00006cae.bin
157fcf7163cd7fa12826fa8ce01c9a066d4f03f75ac89d2e84884177374de1fc
pdf-font-stream PDF embedded font (sfnt) at offset 0x6CAE 5352 bytes
font_01_sfnt_off00007eb9.bin
ebc22e9ecbc0599dedd1a30146c2ec8935fe52ddfa586547b83fc9862b8c7cf0
pdf-font-stream PDF embedded font (sfnt) at offset 0x7EB9 10436 bytes
font_02_sfnt_off0000a2bb.bin
93a15fa434f32f69f8c14337c2cfae3e3962cab9c7b19d929ecea2420c571e4c
pdf-font-stream PDF embedded font (sfnt) at offset 0xA2BB 3304 bytes