Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c670a71fb3ee8c1…

MALICIOUS

PDF

58.6 KB Created: 2020-09-10 10:28:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 00eaba074dc97db2f19fad3233a32eed SHA-1: f612bd8a7c9b2b92c2a23f6b87f2bb09703c1f25 SHA-256: 2c670a71fb3ee8c17abfad8d7481194d3622d3c14e813cd400fefe782a9d5b29
150 Risk Score

Malware Insights

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

The PDF file contains a lure related to travel guides, but the primary malicious activity is driven by embedded links. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates that one of the embedded URLs, https://ttraff.link/wix?keyword=kuala+lumpur+budget+travel+guide, points to known malicious redirector infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of external links, many hosted on cdn.shopify.com, suggesting an attempt to distribute malicious content or engage in SEO manipulation. No scripts were extracted, but the presence of a malicious redirector and a link farm strongly suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.link/wix?keyword=kuala+lumpur+budget+travel+guide
    • http://gepuruz.msnlawoffice.com/uploads/1/3/2/6/132695203/2447678.pdf
    • http://files.depedkabankalancity.com/uploads/1/3/2/6/132682792/dorimenawabuzefuje.pdf
    • http://files.sailingcruisingscotland.com/uploads/1/3/0/7/130740589/zipakebarujukebet.pdf
    • https://cdn.shopify.com/s/files/1/0432/2466/2173/files/51794801335.pdf
    • https://cdn.shopify.com/s/files/1/0435/3461/4688/files/karupilumodinitoz.pdf
    • https://cdn.shopify.com/s/files/1/0434/5295/6838/files/ielts_band_9_task_1.pdf
    • https://cdn.shopify.com/s/files/1/0438/9991/2344/files/bunesubizeripos.pdf
    • https://cdn.shopify.com/s/files/1/0431/7757/4562/files/rubilesakewewazezusuve.pdf
    • https://cdn.shopify.com/s/files/1/0428/3164/2780/files/fetodusivebetibode.pdf
    • https://cdn.shopify.com/s/files/1/0437/4475/5866/files/bijurezofovobok.pdf
    • https://cdn.shopify.com/s/files/1/0435/1872/2216/files/d_d_ranged_weapons.pdf
    • https://static.usrfiles.com/ugd/efc97f_2eb2da815b684a02ab74bac6c1ebc88b.pdf
    • https://static.usrfiles.com/ugd/2ca22b_473ad31662384271870ebe7eb3c19637.pdf
    • https://static.usrfiles.com/ugd/91e123_71b105ab9c1442edb8dd3619704ba926.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_off00008ba1.bin
b87dfbee0accb23ba21064a94cbb7e344ed8b73998ccfa89911c3d6b409661c7
pdf-font-stream PDF embedded font (sfnt) at offset 0x8BA1 5268 bytes
font_01_sfnt_off00009d7c.bin
ac70b172362f47f9714d345e7a38710e24c0d64c189c8d80c02e7806e465c1aa
pdf-font-stream PDF embedded font (sfnt) at offset 0x9D7C 12936 bytes
font_02_sfnt_off0000c73f.bin
531e37f64a2e7dc3bfb257675d9e6c644c7b1597f33ba9a969cd005a7ed65660
pdf-font-stream PDF embedded font (sfnt) at offset 0xC73F 16312 bytes