Malicious PDF — malware analysis report

Static analysis result for SHA-256 02ac24a6e391ee3c…

MALICIOUS

PDF

43.0 KB Created: 2020-08-19 18:02:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b6398d0f23543ecce5e2fbce4c76e41 SHA-1: 32892d85e9d8a6bcf44b7db96e771a2d7bfb8caf SHA-256: 02ac24a6e391ee3c98014b57b632bdab9b32f4a2a5cb33ef8d2232111fa154de
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at ttraff.com. This suggests a phishing or scam attempt, likely aiming to direct users to malicious content or further phishing pages. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=adblock+mozilla+firefox+android
    • http://polow.2tenbooks.com/uploads/1/3/1/3/131379866/541353.pdf
    • http://tazekun.loveisthesun.com/uploads/1/3/1/1/131163494/vejixixuki.pdf
    • http://files.unstoppableachievers.com/uploads/1/3/0/8/130873851/a7a77c901.pdf
    • http://lawipan.knowworcester.org/uploads/1/3/0/7/130775934/2770144.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/45865267400.pdf
    • https://cdn.shopify.com/s/files/1/0436/5526/6457/files/case_study_research_design_and_methods_2020.pdf
    • https://cdn.shopify.com/s/files/1/0429/6556/5589/files/jowabafogidamewesen.pdf
    • https://cdn.shopify.com/s/files/1/0431/0577/9878/files/toefl_speaking_template.pdf
    • https://cdn.shopify.com/s/files/1/0435/6662/9032/files/35768675370.pdf
    • https://cdn.shopify.com/s/files/1/0437/5075/2417/files/sejag.pdf
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/4474225396.pdf
    • https://cdn.shopify.com/s/files/1/0432/9809/5272/files/gidogudurolafosugozulejo.pdf
    • https://cdn.shopify.com/s/files/1/0429/2644/0607/files/sibefajafe.pdf
    • https://cdn.shopify.com/s/files/1/0431/5411/2672/files/2735372941.pdf
    • https://cdn.shopify.com/s/files/1/0433/0032/3496/files/custom_navigation_bar_mod_apk.pdf
    • https://cdn.shopify.com/s/files/1/0435/2717/6344/files/suziwuxusuk.pdf
    • https://cdn.shopify.com/s/files/1/0431/9284/4448/files/76411556595.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c47.bin
1192c9e34e3bc995505e20e3385a31104c16f4cf2b5ff08c0f1d486d1fc25e72		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C47 5008 bytes
font_01_sfnt_off00006d30.bin
c3963db40f7779f0a99819de6f26f96cabb9bd6297598a8c85ceb621c8e1477d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D30 10504 bytes
font_02_sfnt_off00009118.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9118 4324 bytes

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