Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1d6026f79f8ed3f…

MALICIOUS

PDF

48.0 KB Created: 2020-08-21 23:18:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4391471a4cb49fb7aa1319e2e905c393 SHA-1: 0098118c13d472ab1609fd35349c8be323820b4e SHA-256: d1d6026f79f8ed3f29618d482bacc667bfed234401b5265ca889d9a1484de6f1
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is designed to redirect users to further malicious content, likely a phishing page or malware download. The document also contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of SEO link farm abuse to improve search engine ranking for malicious content. The presence of the 'periodic table 2019 apk' keyword suggests a lure to trick users into clicking the malicious link.

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=periodic+table+2019+apk
    • http://files.mayusilkart.org/uploads/1/3/1/3/131383664/2245704.pdf
    • http://woketapud.mummydoctorlife.com/uploads/1/3/1/3/131398252/dopobonela.pdf
    • http://files.elearning2lcsd.org/uploads/1/3/1/4/131438869/9731516.pdf
    • https://cdn.shopify.com/s/files/1/0445/4537/6420/files/47360710457.pdf
    • https://cdn.shopify.com/s/files/1/0435/4405/1871/files/ancient_greek_literature_and_society.pdf
    • https://cdn.shopify.com/s/files/1/0430/6904/6935/files/ffxiv_shirogane_map.pdf
    • https://cdn.shopify.com/s/files/1/0436/5231/7342/files/business_plan_for_restaurant_and_bar.pdf
    • https://cdn.shopify.com/s/files/1/0428/4357/0343/files/zogutobapisivuvonaji.pdf
    • https://cdn.shopify.com/s/files/1/0431/4205/4048/files/83417255454.pdf
    • https://cdn.shopify.com/s/files/1/0437/1818/1013/files/2296795888.pdf
    • https://cdn.shopify.com/s/files/1/0432/4828/7904/files/34637462700.pdf
    • https://cdn.shopify.com/s/files/1/0435/3838/3007/files/free_rigged_3d_models.pdf
    • https://cdn.shopify.com/s/files/1/0430/4096/4759/files/tuboj.pdf
    • https://cdn.shopify.com/s/files/1/0439/0577/7832/files/63654813699.pdf
    • https://cdn.shopify.com/s/files/1/0427/9179/6902/files/electroscope_worksheet_answer_key.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e69.bin
00fd70f00f3ae85f386eb3e0da1139642da05757b8a5373158c44e2c15f2eb19
pdf-font-stream PDF embedded font (sfnt) at offset 0x5E69 5576 bytes
font_01_sfnt_off0000715f.bin
a2bf03b486081c3f000a641ed3e3a3a3f1f59fbbd9ecb50b8611388ff5759697
pdf-font-stream PDF embedded font (sfnt) at offset 0x715F 1864 bytes
font_02_sfnt_off00007a6d.bin
238fe0214e740899d2bf8e927ec050eb3dcba3dbdd588773ade8c1357ab91d0f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A6D 10100 bytes
font_03_sfnt_off00009d33.bin
a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd
pdf-font-stream PDF embedded font (sfnt) at offset 0x9D33 16204 bytes