Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8c9234d19029690…

MALICIOUS

PDF

44.7 KB Created: 2020-08-03 01:24:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66d7603f49a15ddd6b498cc99a164002 SHA-1: eeef0c07d3569dd66871749f8a6343fe497f2f14 SHA-256: a8c9234d19029690f7a567a0992bdcd64487894cecba71c7e57d4244b9af9b69
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 'ttraff.com'. The document body, though partially corrupted, includes text related to 'Tn drivers license renewal locations' and the malicious URL. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or phishing attempts.

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=tn+drivers+license+renewal+locations
    • http://files.opendoorbozeman.org/uploads/1/3/1/3/131379894/ab65f.pdf
    • http://files.nysbpclc.com/uploads/1/3/1/0/131071082/notuxabafab.pdf
    • http://files.brancepethcastle.org.uk/uploads/1/3/1/4/131453574/4864240.pdf
    • https://cdn.shopify.com/s/files/1/0430/1560/2339/files/fowaluvijitugefulexegefe.pdf
    • https://cdn.shopify.com/s/files/1/0430/0275/7281/files/dogozedevaxirusaki.pdf
    • https://cdn.shopify.com/s/files/1/0429/5809/4495/files/32286963389.pdf
    • https://cdn.shopify.com/s/files/1/0427/8861/8396/files/74799617858.pdf
    • https://cdn.shopify.com/s/files/1/0433/1657/6424/files/83059325899.pdf
    • https://cdn.shopify.com/s/files/1/0434/1239/0038/files/355843849.pdf
    • https://cdn.shopify.com/s/files/1/0429/1585/6550/files/69124330758.pdf
    • https://cdn.shopify.com/s/files/1/0439/2986/2312/files/ffxiv_bsm_leveling_guide.pdf
    • https://cdn.shopify.com/s/files/1/0433/6346/7414/files/lezixevokegozose.pdf
    • https://cdn.shopify.com/s/files/1/0431/4107/1016/files/13468529342.pdf
    • https://cdn.shopify.com/s/files/1/0434/2382/6085/files/livufareviriduzulatibi.pdf
    • https://cdn.shopify.com/s/files/1/0430/7261/8657/files/how_to_load_blockchain_from_bootstrap._dat.pdf
    • https://cdn.shopify.com/s/files/1/0430/5682/4471/files/75992783177.pdf
    • https://cdn.shopify.com/s/files/1/0433/8706/0375/files/32540625500.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_off000063a0.bin
e8ae1f0891432cf97290f9235a650e032d2ae2033775e296dce9a89c543643cb
pdf-font-stream PDF embedded font (sfnt) at offset 0x63A0 4824 bytes
font_01_sfnt_off00007415.bin
3599415050dc630cbe0cb60a97f19440f17dd83f5c3e4965799cf377ca3f6904
pdf-font-stream PDF embedded font (sfnt) at offset 0x7415 10404 bytes
font_02_sfnt_off000097a4.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0x97A4 4324 bytes