Malicious PDF — malware analysis report

Static analysis result for SHA-256 af7beef113fecc68…

MALICIOUS

PDF

55.1 KB Created: 2020-08-23 03:29:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 76425ba22dd58d0f4cd7359a69fb4bb0 SHA-1: 7de9c2a76c4b816ffaeb12db690dfdd44594ede8 SHA-256: af7beef113fecc6829eb9ae4807fc284e0f34d34349d3b8959441ea3f69d5407
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a critical heuristic indicating it links to known malicious redirector infrastructure, specifically 'https://ttraff.cc/pify?keyword=architecture+paris+guide'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with the primary one pointing to a Shopify domain. The document body, though heavily obfuscated, contains the malicious URL and a benign-looking PDF link, suggesting a lure to a malicious site.

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.cc/pify?keyword=architecture+paris+guide
    • http://files.adamsmnhistory.com/uploads/1/3/1/3/131380728/sikejoseje.pdf
    • https://cdn.shopify.com/s/files/1/0431/2812/7654/files/57583918610.pdf
    • https://cdn.shopify.com/s/files/1/0431/6925/1487/files/sezadukuvinasemo.pdf
    • https://cdn.shopify.com/s/files/1/0431/5011/4965/files/jump_math_grade_1_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0463/2566/1851/files/rufideguzetuwofosa.pdf
    • https://cdn.shopify.com/s/files/1/0431/9775/9643/files/46918415291.pdf
    • https://cdn.shopify.com/s/files/1/0429/6998/9279/files/tasaxoxesepedopebateviwur.pdf
    • https://cdn.shopify.com/s/files/1/0430/7845/1351/files/nafikajemejaja.pdf
    • https://cdn.shopify.com/s/files/1/0429/9050/2042/files/harvard_endowment_report.pdf
    • https://cdn.shopify.com/s/files/1/0459/0210/2682/files/dobep.pdf
    • https://cdn.shopify.com/s/files/1/0463/2746/4097/files/rusixozoz.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61411835552.pdf
    • https://cdn.shopify.com/s/files/1/0433/7215/0947/files/yandere_simulator_controls.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_off00008ae3.bin
6a503f8921989cf07907b265830d22f93e7930b7a733a8b56ef3c150f9796fe9
pdf-font-stream PDF embedded font (sfnt) at offset 0x8AE3 4956 bytes
font_01_sfnt_off00009bc5.bin
c53865daa13f3ac48e49404c0e2100ec38c03512107fc8a8dce0fb3d2fac4a9a
pdf-font-stream PDF embedded font (sfnt) at offset 0x9BC5 11364 bytes
font_02_sfnt_off0000c197.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71
pdf-font-stream PDF embedded font (sfnt) at offset 0xC197 4324 bytes