Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f1c6e160cb57058…

MALICIOUS

PDF

46.1 KB Created: 2020-08-06 19:46:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b97f3043c81fb1af0df65f4a53cf7e84 SHA-1: b545a707f0a1f1cd2673e5e6883b824b00a35900 SHA-256: 1f1c6e160cb57058262eec42092319ffb50b4461dd88fe86b0926543d48a1e14
128 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to PDFs hosted on Shopify. One prominent link redirects to a known malicious domain, ttraff.com, disguised as a search result for a research paper. This suggests a phishing or redirection campaign. No scripts were extracted, limiting the analysis of specific execution chains.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/wb?keyword=results%20and%20discussion%20sample%20research%20paper%20pdf
    • http://files.caritas-academy.com/uploads/1/3/1/3/131381021/lanazawetobizukuraxo.pdf
    • http://files.maziyahyussof.com/uploads/1/3/1/6/131636828/nojetijomenawakavixo.pdf
    • http://files.t3targets.com/uploads/1/3/1/3/131384281/472974.pdf
    • http://files.thirdcinemaproductions.com/uploads/1/3/1/3/131379749/sonazez.pdf
    • http://files.lovebugweddingcars.co.uk/uploads/1/3/1/8/131871814/cde6f3f61.pdf
    • https://cdn.shopify.com/s/files/1/0428/8276/0870/files/9607452788.pdf
    • https://cdn.shopify.com/s/files/1/0431/9579/3568/files/bronkoskopi_adalah.pdf
    • https://cdn.shopify.com/s/files/1/0431/1970/6273/files/9761745709.pdf
    • https://cdn.shopify.com/s/files/1/0431/6738/3713/files/22353289854.pdf
    • https://cdn.shopify.com/s/files/1/0431/6656/4507/files/11463593295.pdf
    • https://cdn.shopify.com/s/files/1/0430/3929/3589/files/dixowamubujakaxaxadeju.pdf
    • https://cdn.shopify.com/s/files/1/0437/8840/2839/files/95322861295.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/datumaf.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jexisobipa.pdf
    • https://cdn.shopify.com/s/files/1/0429/6825/2565/files/30941569292.pdf
    • https://cdn.shopify.com/s/files/1/0431/9232/0161/files/aperturas_de_ajedrez_explicadas.pdf
    • https://cdn.shopify.com/s/files/1/0437/6212/2903/files/89780893846.pdf
    • https://cdn.shopify.com/s/files/1/0437/7808/0919/files/67635127216.pdf
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/lawasituzolog.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_off00007075.bin
f574b5aab2440daf6e9ee1af12b100ffdf8b71886f3a24c4ba3edd711e0efd6f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7075 5404 bytes
font_01_sfnt_off000082ac.bin
84b70809e941f0ec760773e68874d96c1df5d8072fa42a0e0e376d42929b8742
pdf-font-stream PDF embedded font (sfnt) at offset 0x82AC 12060 bytes