Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a5f0d60e33c728e…

MALICIOUS

PDF

39.1 KB Created: 2020-08-19 09:46:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90fed9645a02cb0773c5420eea609af0 SHA-1: c5cb911ccd0283d13432add882cf6f7a8693a8ad SHA-256: 8a5f0d60e33c728ef77de907269631e542fe3cd463f1cc64b89e0c576a91ed62
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector pointing to 'https://ttraff.com/pify?keyword=canadian+food+inspection+agency+contact+information'. This URL, combined with the document body's mention of 'Canadian food inspection agency contact information', suggests a phishing lure. The PDF also hosts a link farm of 18 other PDF files, indicating a potential attempt to manipulate search engine results or distribute further malicious content. No scripts were extracted from this sample.

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=canadian+food+inspection+agency+contact+information
    • http://wevelixuj.dayspringfarm.org/uploads/1/3/0/7/130776167/eee6c573600.pdf
    • http://files.mikeflament.com/uploads/1/3/1/4/131482887/zokufimuzekajuxit.pdf
    • http://files.designhireenjoy.com.au/uploads/1/3/0/8/130814205/ramub-zirural.pdf
    • http://files.liverpooldesignagency.com/uploads/1/3/2/3/132303163/nidok-vijofimegisex.pdf
    • http://vufepeb.country-sass.com/uploads/1/3/0/8/130814124/f930be030153.pdf
    • https://cdn.shopify.com/s/files/1/0433/2791/4152/files/86345667913.pdf
    • https://cdn.shopify.com/s/files/1/0433/7565/7125/files/55622783934.pdf
    • https://cdn.shopify.com/s/files/1/0429/1903/5033/files/53460134803.pdf
    • https://cdn.shopify.com/s/files/1/0433/8493/0462/files/jofodifukafuxewamazitarel.pdf
    • https://cdn.shopify.com/s/files/1/0429/9508/9561/files/51132398998.pdf
    • https://cdn.shopify.com/s/files/1/0428/8462/8633/files/65146647986.pdf
    • https://cdn.shopify.com/s/files/1/0447/9316/8023/files/princess_diaries_book_5.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/befuxaj.pdf
    • https://cdn.shopify.com/s/files/1/0440/0077/2246/files/xirowizeb.pdf
    • https://cdn.shopify.com/s/files/1/0435/7508/3167/files/sbi_internet_banking_saral_form.pdf
    • https://cdn.shopify.com/s/files/1/0428/7427/3948/files/67806836115.pdf
    • https://cdn.shopify.com/s/files/1/0447/9080/8727/files/80182558522.pdf
    • https://cdn.shopify.com/s/files/1/0433/0792/5654/files/23933249622.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000059b8.bin
e910db16747338df63490112e8b5cfd66d6a5e7c528c395f564910d1c5c159ca
pdf-font-stream PDF embedded font (sfnt) at offset 0x59B8 5448 bytes
font_01_sfnt_off00006c37.bin
e9a4e29f2e2421be8e2c392f3615df01cb15af40844ce9528405ced8c44a723d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C37 10344 bytes