Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ac9d1d9137f56d8…

MALICIOUS

PDF

42.8 KB Created: 2020-08-05 02:27:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e1e159dbd4e4d6d4a09d92b821f6ab1 SHA-1: 31a578960387383f604992b361f6da8aec58f512 SHA-256: 4ac9d1d9137f56d8e49bec4844ce09df0d06e85ea95c9ae33dd408879f7dbed0
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external websites. One critical heuristic firing indicates a malicious redirector link, specifically 'https://ttraff.cc/pify?keyword=the+kabbalah+unveiled+pdf', suggesting the document is designed to redirect users to malicious content. The presence of numerous links, including those hosted on Shopify, indicates a link farm strategy to potentially improve search engine ranking for malicious content or to distribute malware. 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.cc/pify?keyword=the+kabbalah+unveiled+pdf
    • http://files.thebusybench.com/uploads/1/3/1/0/131069992/53f41b34a8cc2d.pdf
    • http://files.jgulbrandsen.com/uploads/1/3/0/8/130814687/menap.pdf
    • http://temegi.kierstenbrockman.com/uploads/1/3/0/8/130874254/1fb3d4d7723.pdf
    • http://files.lm1a.net/uploads/1/3/2/6/132682913/nupanon_nokuroda_rezozi_jovixofukema.pdf
    • http://files.highcountrysportingdogs.com/uploads/1/3/1/3/131384660/dimibepipa_jubisijugi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/43778875991.pdf
    • https://cdn.shopify.com/s/files/1/0435/5552/0667/files/pukofosevotefu.pdf
    • https://cdn.shopify.com/s/files/1/0434/5682/3453/files/causes_of_carpal_tunnel_syndrome.pdf
    • https://cdn.shopify.com/s/files/1/0436/9124/5733/files/blank_world_map_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/2750/4024/files/53831907098.pdf
    • https://cdn.shopify.com/s/files/1/0435/4804/9572/files/vuzujezutofewi.pdf
    • https://cdn.shopify.com/s/files/1/0433/1280/8091/files/40225321833.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/liwisubusamepumiv.pdf
    • https://cdn.shopify.com/s/files/1/0437/1821/3797/files/xijajaxuvasomuwoli.pdf
    • https://cdn.shopify.com/s/files/1/0427/4916/5734/files/18000278097.pdf
    • https://cdn.shopify.com/s/files/1/0450/6848/4758/files/ethical_issues_in_marketing_research.pdf
    • https://cdn.shopify.com/s/files/1/0430/3601/6802/files/21424448523.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_off000062cf.bin
066028c715c991de7c78ceef409f268250c58431027e874cfe435d19342cd619
pdf-font-stream PDF embedded font (sfnt) at offset 0x62CF 5068 bytes
font_01_sfnt_off00007410.bin
3aa370ea54e836ff83d9b2fba46bc4b4fa880c9ec85c09ffaee7896583079043
pdf-font-stream PDF embedded font (sfnt) at offset 0x7410 12432 bytes