Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f7f0abc49bf8a40…

MALICIOUS

PDF

40.0 KB Created: 2020-08-22 15:24:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e23d21f4fcb626ec3760989034b570a3 SHA-1: b3c6f3bb80f363408fc37084dc257a36de4d070e SHA-256: 2f7f0abc49bf8a40a303dfb1419e92b608a9a2aadee836caf33a33e324f1ad8d
130 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link disguised as a helpful document. The document body and heuristics indicate a lure to click a link, specifically mentioning 'copy outlook contacts to excel spreadsheet', which is a common social engineering tactic. The primary malicious URL identified is ttraff.cc, which redirects to a Shopify-hosted PDF, likely part of a link farm designed to improve search engine ranking for malicious content.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=copy+outlook+contacts+to+excel+spreadsheet
    • http://files.fanhubnw.com/uploads/1/3/1/8/131857445/jelim.pdf
    • http://files.independencedayanimalrescue.com/uploads/1/3/0/7/130740210/e1fe4b3.pdf
    • https://cdn.shopify.com/s/files/1/0433/2060/6885/files/80836810255.pdf
    • https://cdn.shopify.com/s/files/1/0433/3617/1688/files/bachon_k_islami_naam.pdf
    • https://cdn.shopify.com/s/files/1/0433/5098/2805/files/bamavijule.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gijamibumiji.pdf
    • https://cdn.shopify.com/s/files/1/0430/5597/2501/files/70807881553.pdf
    • https://cdn.shopify.com/s/files/1/0433/2588/2518/files/vafipu.pdf
    • https://cdn.shopify.com/s/files/1/0428/3197/0471/files/lagefebekebefiwef.pdf
    • https://cdn.shopify.com/s/files/1/0430/5115/5618/files/27378209087.pdf
    • https://cdn.shopify.com/s/files/1/0433/6300/8664/files/tegumulasukeref.pdf
    • https://cdn.shopify.com/s/files/1/0434/5289/1298/files/zepedugotuku.pdf
    • https://cdn.shopify.com/s/files/1/0429/0176/6310/files/pijegitejipowetafir.pdf
    • https://cdn.shopify.com/s/files/1/0437/3849/7185/files/wekikepezowunuguxix.pdf
    • https://cdn.shopify.com/s/files/1/0431/5850/3584/files/asterix_in_britain.pdf
    • https://cdn.shopify.com/s/files/1/0437/6756/2391/files/80795544353.pdf
    • https://cdn.shopify.com/s/files/1/0433/4351/1702/files/dnd_drunken_master.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_off00005f06.bin
70af84f3eaad4786b394a66bc66bb228135ca1cdce6d9672a461d35b2188dd39
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F06 5300 bytes
font_01_sfnt_off0000710b.bin
9622cdc080cd262ccccb8ea0684dc212fe9126352fd2b24b5328ab8911e30868
pdf-font-stream PDF embedded font (sfnt) at offset 0x710B 10052 bytes