Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0d82c5d315bba6a…

MALICIOUS

PDF

41.0 KB Created: 2020-08-12 03:05:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 520c2a179932e89e6dfa7e4e59aa2666 SHA-1: 9f4af3bd74217519c1124384121c57a5c59ec60d SHA-256: d0d82c5d315bba6a3115ea650374bdcf23a5126a5dcacea4c7c8204adb99ac6c
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, many of which point to external resources. One critical heuristic firing indicates that the PDF links to known malicious redirector infrastructure, specifically 'https://ttraff.ru/pify?keyword=astrometry+for+astrophysics+methods+models+and+applications+pdf'. This suggests the document is designed to lure users to malicious sites. 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.ru/pify?keyword=astrometry+for+astrophysics+methods+models+and+applications+pdf
    • http://files.cosmeticsupport.com/uploads/1/3/1/4/131452982/kumewirekas.pdf
    • http://wemipa.molliebing.com/uploads/1/3/2/8/132814930/gepozevaze-lipuruto-talagalefiduf.pdf
    • http://files.apolloartdocent.com/uploads/1/3/1/4/131453512/8441315.pdf
    • https://cdn.shopify.com/s/files/1/0437/4976/9367/files/52390832743.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/4107173541.pdf
    • https://cdn.shopify.com/s/files/1/0430/8277/6725/files/mevirib.pdf
    • https://cdn.shopify.com/s/files/1/0437/2611/0885/files/gefudukuwam.pdf
    • https://cdn.shopify.com/s/files/1/0432/8731/4585/files/sword_art_online_light_novel.pdf
    • https://cdn.shopify.com/s/files/1/0437/2480/0154/files/comite_de_basilea_1.pdf
    • https://cdn.shopify.com/s/files/1/0437/9725/0205/files/4158664777.pdf
    • https://cdn.shopify.com/s/files/1/0427/8976/5276/files/sindrome_de_asperger_causas.pdf
    • https://cdn.shopify.com/s/files/1/0440/1430/5430/files/sokageg.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_off00006131.bin
5868bd9cbdf647955946685d699765e8f3fb2fca607300da6ac49197e4f71ddb
pdf-font-stream PDF embedded font (sfnt) at offset 0x6131 5484 bytes
font_01_sfnt_off000073bb.bin
c75fb3bf163b70388987aa46091763f45fb9c239502b6b2ed811121083b42859
pdf-font-stream PDF embedded font (sfnt) at offset 0x73BB 10228 bytes