Malicious PDF — malware analysis report

Static analysis result for SHA-256 c60d05023b06ff7a…

MALICIOUS

PDF

48.3 KB Created: 2020-08-12 11:50:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 60041efe1957a542ebd0a76bface6160 SHA-1: 2bd8fd84d91666851f629a23aa439ba9d2ed6737 SHA-256: c60d05023b06ff7ad7bb871db7e2a3e0a068314f0d5fdda8443d1eeaefcbe41d
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One of the primary links, however, leads to a known malicious redirector at 'ttraff.cc'. The document body, though heavily obfuscated, contains text referencing 'MS dynamics ax 2012 user manual' and the malicious URL, suggesting a lure to trick users into clicking the malicious link. The presence of numerous SEO-optimized PDF links indicates a potential link farm or SEO poisoning tactic to improve search engine ranking for 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.cc/wb?keyword=ms%20dynamics%20ax%202012%20user%20manual
    • http://tanojor.skcftc.com/uploads/1/3/0/8/130813612/040c0bfcc8b91c.pdf
    • http://files.legacypreparatory.org/uploads/1/3/2/7/132710782/jezove_linexubu_baxemilur_benobap.pdf
    • http://files.biorbnz.co.nz/uploads/1/3/0/8/130874394/366ca2e445.pdf
    • http://vafom.voiceforanimals.net/uploads/1/3/0/7/130775493/b906039.pdf
    • http://files.wetakeitpersonalsales.com/uploads/1/3/0/7/130739826/rudasezorix.pdf
    • https://cdn.shopify.com/s/files/1/0435/1649/3976/files/foucault_archeology_of_knowledge.pdf
    • https://cdn.shopify.com/s/files/1/0428/2921/7958/files/kexurivadex.pdf
    • https://cdn.shopify.com/s/files/1/0435/9903/6579/files/rewrite_the_stars_guitar_tabs.pdf
    • https://cdn.shopify.com/s/files/1/0432/4186/5384/files/gosakutobudimetugozemuge.pdf
    • https://cdn.shopify.com/s/files/1/0435/3828/4696/files/ibstock_brick_dimensions.pdf
    • https://cdn.shopify.com/s/files/1/0431/6443/4583/files/81625042368.pdf
    • https://cdn.shopify.com/s/files/1/0432/4560/0931/files/gagisub.pdf
    • https://cdn.shopify.com/s/files/1/0439/1724/6632/files/mine_wars_texture_pack.pdf
    • https://cdn.shopify.com/s/files/1/0431/6689/2181/files/82273250902.pdf
    • https://cdn.shopify.com/s/files/1/0429/8863/4263/files/95616285904.pdf
    • https://cdn.shopify.com/s/files/1/0431/6856/3355/files/bejofufuvozefe.pdf
    • https://cdn.shopify.com/s/files/1/0430/9155/8551/files/i-_751_affidavit_sample.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_off00006c62.bin
bde7dc5dd701e4c915616ad0f6b28079ccb73487d59db0021a1cbc1cfbbb4727
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C62 5276 bytes
font_01_sfnt_off00007e35.bin
5ed488decdf3a4932c64a48f68b405ad97c430456cac27b26a131389b4e1ad6b
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E35 12436 bytes
font_02_sfnt_off0000a664.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0xA664 4324 bytes