Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5f4d97edd79e22b…

MALICIOUS

PDF

45.7 KB Created: 2020-08-12 04:45:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1b470d455a86144768d169f1ac701ce2 SHA-1: 58b77ed3f8e222dfa0993260c9ab55f6c65b9245 SHA-256: e5f4d97edd79e22b4d30b2fb08711d7dbcdc2bdc12a2cb2bd9a21c7cf029c888
128 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to benign Shopify URLs, but one critical link directs to a known malicious redirector. The document body also contains a call-to-action phrase, suggesting a lure to click the malicious link. The primary malicious URL is https://ttraff.com/pify?keyword=convert+pdf+to+word+free+download+zamzar, which likely leads to further malicious content.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=convert+pdf+to+word+free+download+zamzar
    • http://texigu.gcchurch.net/uploads/1/3/0/7/130738721/a1ddb7545d62.pdf
    • http://files.net4bags.com/uploads/1/3/1/3/131397987/7252552.pdf
    • http://wenaji.millvillealumni.org/uploads/1/3/1/6/131637896/181eeec8bbce5.pdf
    • http://files.simplyexperiences.com.au/uploads/1/3/0/7/130775232/7bce56dab49.pdf
    • https://cdn.shopify.com/s/files/1/0436/8603/5621/files/36408573547.pdf
    • https://cdn.shopify.com/s/files/1/0429/7244/6873/files/fejupulazi.pdf
    • https://cdn.shopify.com/s/files/1/0432/0926/1218/files/wofibef.pdf
    • https://cdn.shopify.com/s/files/1/0431/7570/6788/files/70963351801.pdf
    • https://cdn.shopify.com/s/files/1/0429/8165/4679/files/the_atheist_s_mass_balzac.pdf
    • https://cdn.shopify.com/s/files/1/0434/8405/3669/files/xejupebadimud.pdf
    • https://cdn.shopify.com/s/files/1/0431/9805/4558/files/49130461843.pdf
    • https://cdn.shopify.com/s/files/1/0428/0477/3031/files/62113284884.pdf
    • https://cdn.shopify.com/s/files/1/0430/9755/5108/files/52543359270.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/41697505155.pdf
    • https://cdn.shopify.com/s/files/1/0436/8711/6965/files/karl_marx_conflict_theory_essays.pdf
    • https://cdn.shopify.com/s/files/1/0427/6033/9623/files/kafotidividabiteb.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_off0000609c.bin
49befe0ba56b041c0d9d31b52755750d431e89282d4e0882a3160f1f00fad828
pdf-font-stream PDF embedded font (sfnt) at offset 0x609C 5116 bytes
font_01_sfnt_off00007208.bin
0a0c078fc682b143f9b8948fcf9c4604957d89fdc990da2eb5b0912eb22e4b84
pdf-font-stream PDF embedded font (sfnt) at offset 0x7208 10056 bytes
font_02_sfnt_off000094a4.bin
c497e7020956884876526f9a9d0138e4369f5c46b3391b62f16f330352c2bc8d
pdf-font-stream PDF embedded font (sfnt) at offset 0x94A4 16076 bytes