Malicious PDF — malware analysis report

Static analysis result for SHA-256 0160509aa33b1ec5…

MALICIOUS

PDF

40.4 KB Created: 2020-08-11 12:42:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9764ae059383e9c0e5a986c2c745a9c3 SHA-1: e2a1f86466348631f30c4699d043057d64a9dab3 SHA-256: 0160509aa33b1ec59bf3a1dd5b0dc2f00f2ac569bea76bcab9a8d53e661abd18
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The heuristic 'SE_ADVANCE_FEE_SCAM_LURE' indicates the document's content is designed to trick users into believing they are involved in a lottery or parcel delivery scam, which is a common advance-fee fraud tactic. The presence of many links, including the malicious one, suggests a coordinated effort to lead users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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.ru/pify?keyword=antropologia+aplicada+pdf
    • http://files.aubsblog.com/uploads/1/3/0/8/130813855/6264195.pdf
    • http://files.staysweetnicolas.com/uploads/1/3/1/4/131453060/witilezi.pdf
    • http://files.adrianahammond.com/uploads/1/3/1/8/131856949/7466497.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0434/1799/3366/files/bourgeois_gentilhomme_english.pdf
    • https://cdn.shopify.com/s/files/1/0427/4988/6620/files/lukutiwa.pdf
    • https://cdn.shopify.com/s/files/1/0436/9186/8313/files/57882085920.pdf
    • https://cdn.shopify.com/s/files/1/0427/4556/1254/files/67825173964.pdf
    • https://cdn.shopify.com/s/files/1/0431/8950/2110/files/loksatta_epaper_pune_today_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/5537/3720/files/77266558693.pdf
    • https://cdn.shopify.com/s/files/1/0432/1266/9089/files/16658885627.pdf
    • https://cdn.shopify.com/s/files/1/0436/5156/3670/files/cannizzaro_reaction_mechanism.pdf
    • https://cdn.shopify.com/s/files/1/0433/6179/6248/files/26508253752.pdf
    • https://cdn.shopify.com/s/files/1/0435/3097/7434/files/nijadatuzisamekapavusutoj.pdf
    • https://cdn.shopify.com/s/files/1/0439/1275/7400/files/99340329246.pdf
    • https://cdn.shopify.com/s/files/1/0434/4119/3110/files/merajivixulawewaja.pdf
    • https://cdn.shopify.com/s/files/1/0431/7157/8024/files/14714010712.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060a7.bin
f08863914a58e4858e5960f342e6f02fa684ae804faad5d3d1d8b2b64973530e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60A7 5136 bytes
font_01_sfnt_off0000722a.bin
72e91a368c162e0620c571abc56834f25eb7b22a760abd92b94ffe2ac884d316		 pdf-font-stream PDF embedded font (sfnt) at offset 0x722A 10164 bytes

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