Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa3f3e5fa52703fe…

MALICIOUS

PDF

37.0 KB Created: 2020-08-04 17:43:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5368e3420faca1e6e8e7e057faa0e700 SHA-1: cdac409c506fb77e66729fcd587ce87c4cbfc1c8 SHA-256: aa3f3e5fa52703fe6e62d6c3d26f31427afb0fdef3d7f20bf99f43c35fd6182a
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to lure users into downloading fake PDF files, ultimately redirecting them to malicious infrastructure at ttraff.com. The document body, though heavily obfuscated, contains the lure text 'Anthony giddens sociology 7th edition pdf free download' and the malicious URL. This indicates a social engineering tactic to trick users into clicking malicious links.

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.com/pify?keyword=anthony+giddens+sociology+7th+edition+pdf+free+download
    • http://files.queensboyzexplorers.com/uploads/1/3/0/9/130969306/vonakiwaji_zupiluwepa_nusotun_jebetux.pdf
    • http://files.livingbeginshere.com/uploads/1/3/0/9/130969036/buxaji-vilifas-zejolugibejiz.pdf
    • http://files.ayercommunityschool.com/uploads/1/3/1/4/131453348/bosulirojizuzajiso.pdf
    • https://cdn.shopify.com/s/files/1/0431/4418/3974/files/jolole.pdf
    • https://cdn.shopify.com/s/files/1/0438/2982/1602/files/lomidenojagu.pdf
    • https://cdn.shopify.com/s/files/1/0430/4447/0933/files/73145715360.pdf
    • https://cdn.shopify.com/s/files/1/0433/7372/3800/files/sofegetoveferipud.pdf
    • https://cdn.shopify.com/s/files/1/0430/5554/6517/files/54311543518.pdf
    • https://cdn.shopify.com/s/files/1/0433/9436/7649/files/sony_vegas_pro_free_trial.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/19463184481.pdf
    • https://cdn.shopify.com/s/files/1/0434/0046/2503/files/66400227095.pdf
    • https://cdn.shopify.com/s/files/1/0433/0677/8784/files/74524891183.pdf
    • https://cdn.shopify.com/s/files/1/0433/8316/0983/files/thermodynamics_statistical_thermodynamics_kinetics_solutions_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/6523/5866/files/13249657362.pdf
    • https://cdn.shopify.com/s/files/1/0431/4228/3432/files/26648382776.pdf
    • https://cdn.shopify.com/s/files/1/0436/4438/7481/files/bissell_proheat_2x_revolution_manual.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_off000051fb.bin
f70d3497d2b2f6faf998ff96542ea8dff79bbd44858006e82ea33159e7a8343c
pdf-font-stream PDF embedded font (sfnt) at offset 0x51FB 5680 bytes
font_01_sfnt_off0000657e.bin
73620f9c3c120341f159fca473697d72fd387a552d4a07aa8ecbb28545d152d9
pdf-font-stream PDF embedded font (sfnt) at offset 0x657E 9772 bytes