Malicious PDF — malware analysis report

Static analysis result for SHA-256 93db9d729131e06b…

MALICIOUS

PDF

36.4 KB Created: 2020-08-16 15:10:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 50507af072fce99da712c54100b0428d SHA-1: 7bd9ede9f6a5e841d1ab7aff76d2027e7f50005a SHA-256: 93db9d729131e06be708340479e7c59b34920e3dd72be34e5668e65eedd29df3
120 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector at ttraff.ru, which is disguised with the keyword 'acrobat pdf reader old version'. This suggests a social engineering attempt to trick users into clicking the link, likely to download further malware. The document body, though heavily obfuscated, contains the same URL and references to 'acrobat pdf reader old version', reinforcing the lure. The presence of a link farm further indicates an attempt to manipulate search engine results or distribute malicious content.

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=acrobat+pdf+reader+old+version
    • http://files.saintanastasiaschool.org/uploads/1/3/0/8/130874567/bamavugezofazadonav.pdf
    • http://dimiso.gdinteriors.ca/uploads/1/3/1/3/131379759/ce55df7879b.pdf
    • https://cdn.shopify.com/s/files/1/0431/3664/7317/files/filufuli.pdf
    • https://cdn.shopify.com/s/files/1/0432/6952/1568/files/14367985882.pdf
    • https://cdn.shopify.com/s/files/1/0437/6064/8343/files/carte_du_monde_a3.pdf
    • https://cdn.shopify.com/s/files/1/0428/4933/7507/files/vumupisawipurakusenasoj.pdf
    • https://cdn.shopify.com/s/files/1/0433/8178/4726/files/chromosomal_disorders_list.pdf
    • https://cdn.shopify.com/s/files/1/0435/3998/8648/files/abundance_chakra_healing.pdf
    • https://cdn.shopify.com/s/files/1/0437/8761/6413/files/rondo_capriccioso_saint_saens.pdf
    • https://cdn.shopify.com/s/files/1/0441/2994/3704/files/pogedimodopiragabil.pdf
    • https://cdn.shopify.com/s/files/1/0433/0084/7781/files/jatipoxofadimeti.pdf
    • https://cdn.shopify.com/s/files/1/0429/2716/1507/files/65986448048.pdf
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/pibevulus.pdf
    • https://cdn.shopify.com/s/files/1/0431/6381/1999/files/reliability_of_safety_critical_systems_theory_and_applications.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_off00005041.bin
c80eecbc461a78cb0682273e6e290aefa939fc95d559d292d54814f2181ec5da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5041 5340 bytes
font_01_sfnt_off00006278.bin
11c3fa710cdf927af1b1702618c29ec1b213191849c933d51bc899f8227c810d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6278 10020 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.