Malicious PDF — malware analysis report

Static analysis result for SHA-256 d29b4b2d415c4342…

MALICIOUS

PDF

41.5 KB Created: 2020-08-25 02:12:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 87b8b6d37d0e8ff564254e4d23826394 SHA-1: db550aff9da546df7c5077f42227926066c20b2d SHA-256: d29b4b2d415c43423c53bc4b41722a3a669e1bad2007c8df387897ec9d063f0e
120 Risk Score

Malware Insights

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

The PDF document contains a link farm designed to appear as a manual, but it redirects to malicious infrastructure. The primary malicious URL identified is https://ttraff.com/pify?keyword=cp30+batching+plant+spare+parts+manual. The document body itself is heavily obfuscated but contains references to the malicious URL and numerous benign-looking PDF links hosted on Shopify. The attack pattern involves luring the user to click the malicious link under the guise of accessing a manual.

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=cp30+batching+plant+spare+parts+manual
    • http://files.eleven22inc.com/uploads/1/3/1/3/131381109/6951239.pdf
    • http://jukebud.redeemernewton.com/uploads/1/3/2/6/132683008/paginowevugalap.pdf
    • http://gafokege.thegoldpatrol.com/uploads/1/3/0/7/130739274/kobekejisa_suxido_nipidub.pdf
    • https://cdn.shopify.com/s/files/1/0429/6169/8969/files/radenumezeleleramu.pdf
    • https://cdn.shopify.com/s/files/1/0430/7379/8306/files/rodexokobada.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kazapuv.pdf
    • https://cdn.shopify.com/s/files/1/0436/5543/0309/files/bojuxoxuwafozavi.pdf
    • https://cdn.shopify.com/s/files/1/0437/5917/3790/files/convert_pages_to_docx.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dedepisolutiri.pdf
    • https://cdn.shopify.com/s/files/1/0438/9902/7611/files/vibalanufixolelazuxalir.pdf
    • https://cdn.shopify.com/s/files/1/0430/1550/4029/files/guxawipunarubijevolu.pdf
    • https://cdn.shopify.com/s/files/1/0430/4715/7911/files/circulatory_system_diagrams_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0433/1382/3909/files/lelilupelexutepopoxinodaw.pdf
    • https://cdn.shopify.com/s/files/1/0431/8144/1181/files/manfaat_binahong.pdf
    • https://cdn.shopify.com/s/files/1/0433/6022/3387/files/zajaselemem.pdf
    • https://cdn.shopify.com/s/files/1/0431/6043/6887/files/jutuj.pdf
    • https://cdn.shopify.com/s/files/1/0432/6886/6212/files/xanufapufelufu.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_off00006366.bin
ff4d19984b9ee51b6cd2f418e3f652d45672714efa2cbb0deaeb4a1f2c870370
pdf-font-stream PDF embedded font (sfnt) at offset 0x6366 5696 bytes
font_01_sfnt_off0000768a.bin
64b8b019f5d17b51565c66f8affba2384b568ca9f3abf0dd7dbf5858dccac356
pdf-font-stream PDF embedded font (sfnt) at offset 0x768A 10140 bytes