Malicious PDF — malware analysis report

Static analysis result for SHA-256 8eb19e2e1043d090…

MALICIOUS

PDF

41.6 KB Created: 2020-09-01 05:13:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 86e081788635411eaeaed12b047e66b4 SHA-1: 2fe85b6be7c1a7c7d02f758e98a2c75aee15cf92 SHA-256: 8eb19e2e1043d090c226b3c89af74eb70d1447f66e6c92afe541934f48bff8a9
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to a link farm hosted on static.usrfiles.com, and one critical link to ttraff.ru. The document body text, though heavily obfuscated, contains the URL 'https://ttraff.ru/wix?keyword=rocketman+1997+full+movie', indicating a lure to download a movie which redirects to malicious infrastructure. The presence of a link farm suggests an attempt to manipulate search engine results or distribute malicious content through a large number of seemingly benign PDFs.

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/wix?keyword=rocketman+1997+full+movie
    • https://cdn.shopify.com/s/files/1/0431/4356/1373/files/fafobub.pdf
    • https://cdn.shopify.com/s/files/1/0437/6671/0426/files/buyers_guide_form.pdf
    • https://cdn.shopify.com/s/files/1/0432/5310/4790/files/diablo_2_hd_mod.pdf
    • https://static.usrfiles.com/ugd/6da380_955a9dbb7c454a30b66ef95e43f6f196.pdf
    • https://static.usrfiles.com/ugd/5de1df_a4111c027dfd4c7b9558e144f8f8f5d3.pdf
    • https://static.usrfiles.com/ugd/b8c837_e04cfbe82eb043ddbcb5868b31569016.pdf
    • https://static.usrfiles.com/ugd/54fa57_c62267e2fd9042ae852e2439b99be673.pdf
    • https://static.usrfiles.com/ugd/1ee69b_9cc719e9a0094ffdb5adeab8636f84f2.pdf
    • https://static.usrfiles.com/ugd/b8c837_3bfb702965b1477b80a3483ce8996ab9.pdf
    • https://static.usrfiles.com/ugd/822ecd_331c5c89988147bbbcee132686a91b1b.pdf
    • https://static.usrfiles.com/ugd/b8c837_f5f882c6613d40fea5d074ba869034d0.pdf
    • https://static.usrfiles.com/ugd/9b5f63_232c18d241a34016aee57d64d4339021.pdf
    • https://cdn.shopify.com/s/files/1/0434/3765/4178/files/gixamojuxem.pdf
    • https://cdn.shopify.com/s/files/1/0437/5206/3125/files/putting_on_glasses_text.pdf
    • https://cdn.shopify.com/s/files/1/0437/3485/9930/files/el_embarazo_definicion.pdf
    • https://cdn.shopify.com/s/files/1/0434/1802/6142/files/zibevimubegofotibe.pdf
    • https://cdn.shopify.com/s/files/1/0430/1488/1433/files/53011978803.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_off00006424.bin
7d483c7f22732a2a9e4a319aab0a033f499a15b62685e140bdedbd4df8b39339
pdf-font-stream PDF embedded font (sfnt) at offset 0x6424 5172 bytes
font_01_sfnt_off000075cd.bin
093b77e7b4cb4fea02a8d12f400aeb3ab16d5281ca775fa5b8cdc3060f4215ae
pdf-font-stream PDF embedded font (sfnt) at offset 0x75CD 10536 bytes