Malicious PDF — malware analysis report

Static analysis result for SHA-256 271b2637e411fcdb…

MALICIOUS

PDF

38.7 KB Created: 2020-09-02 07:28:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 445ce74c6971b9d6659637eb467a9fe9 SHA-1: 88cdc1e1076456a9ac2fb2e37d624ed212791b79 SHA-256: 271b2637e411fcdb8b654c0dcab907dcd3029536a2a0519661b891a8e6094273
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.club/wix?keyword=arena+of+valor+5v5+battle+apkpure'. The document body also contains this URL, suggesting it is the primary lure. The file also exhibits characteristics of a PDF link farm, with numerous embedded links to other PDFs, many hosted on Shopify. The overall pattern suggests a phishing or malware distribution attempt using a deceptive document.

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.club/wix?keyword=arena+of+valor+5v5+battle+apkpure
    • https://static.usrfiles.com/ugd/b8c837_261a38a48e144ad491ef842401effe54.pdf
    • https://static.usrfiles.com/ugd/b8c837_2947135ea2b241ec82552138cf8ab89a.pdf
    • https://static.usrfiles.com/ugd/895bef_8ab8bfbd0e9a40fea39a89e348d2db91.pdf
    • https://cdn.shopify.com/s/files/1/0430/9912/7959/files/73438151018.pdf
    • https://cdn.shopify.com/s/files/1/0432/0706/5757/files/26876004211.pdf
    • https://cdn.shopify.com/s/files/1/0429/2290/1663/files/mcdougal_littell_algebra_2_resource_book.pdf
    • https://cdn.shopify.com/s/files/1/0447/1642/5370/files/assamese_song_new_2019.pdf
    • https://cdn.shopify.com/s/files/1/0433/7447/7464/files/mezurufopukezinifukadow.pdf
    • https://cdn.shopify.com/s/files/1/0435/7265/8335/files/speed_cubing_algorithms.pdf
    • https://cdn.shopify.com/s/files/1/0431/8425/9231/files/annihilation_comic.pdf
    • https://cdn.shopify.com/s/files/1/0432/0693/4688/files/common_aluminum_sheet_thickness.pdf
    • https://cdn.shopify.com/s/files/1/0428/6434/5255/files/69024720740.pdf
    • https://cdn.shopify.com/s/files/1/0430/0144/6551/files/pedepubatijirusisu.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_off0000579f.bin
4938e541f80a3611da2104a3d52a300ace18fca5316d8cc08b35d50000a77983		 pdf-font-stream PDF embedded font (sfnt) at offset 0x579F 5092 bytes
font_01_sfnt_off0000690c.bin
15c348844d664d22afe281bd9a00587c2d966ea41a1d1543e8a25726226af8c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x690C 10840 bytes

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