Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffed5623cbfe278c…

MALICIOUS

PDF

33.6 KB Created: 2020-08-17 14:12:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8128d53860eb2fd13dea83ead9def621 SHA-1: 671cb42edfc20910cf604fbf3b528389f2f6225d SHA-256: ffed5623cbfe278cbea99b31824c2f9c7e86587fadae30081d7b6053b2719dc1
128 Risk Score

Malware Insights

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

The PDF contains a prominent link presented as a 'Solidworks tutorial' download, which is a common social engineering lure. This link redirects to a known malicious domain (ttraff.com). The PDF also contains a large number of embedded links, many pointing to Shopify domains, likely as part of a link farm to improve SEO for malicious content. The presence of a visual download button heuristic further supports the social engineering pretext.

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.com/pify?keyword=solidworks+tutorial+14+pdf
    • http://files.snakities.com/uploads/1/3/2/8/132814387/8130971.pdf
    • https://cdn.shopify.com/s/files/1/0432/1227/5876/files/fuwutajegokotirakowalal.pdf
    • https://cdn.shopify.com/s/files/1/0432/6657/2443/files/54405976358.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wudogezemolajefenupil.pdf
    • https://cdn.shopify.com/s/files/1/0432/0346/1283/files/asge_guidelines_antibiotic_prophylaxis_endoscopy.pdf
    • https://cdn.shopify.com/s/files/1/0438/0760/4896/files/namulidokawobadanewivab.pdf
    • https://cdn.shopify.com/s/files/1/0438/3437/6352/files/apocrifos_del_antiguo_testamento_tomo_v.pdf
    • https://cdn.shopify.com/s/files/1/0432/7643/5612/files/namoxitozusanapemeveta.pdf
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/490585044.pdf
    • https://cdn.shopify.com/s/files/1/0432/8158/0188/files/pibemuwifodu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zeranosorijajigafa.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_off00004610.bin
50e36c30af9ebd6416516e02e3e183e213c9c2988aea4f98691d85b4434927e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4610 5432 bytes
font_01_sfnt_off000058b8.bin
d590d46ec1bf28316c5eba348d513f5b00c7a222b7aef936f34b03e6e081c052		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58B8 9700 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.