Malicious PDF — malware analysis report

Static analysis result for SHA-256 39e2788228aa470d…

MALICIOUS

PDF

39.7 KB Created: 2020-10-30 02:12:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 583725459d51bb1f1f74cfa160e246dd SHA-1: 97fb01950e632db455a95675adb01df9b340c46b SHA-256: 39e2788228aa470d9dae4df8c2a2066914e32c80e9caef7e1ebfe36bdfd0ebcd
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector, which is likely intended to lead the user to a phishing or malware distribution site. The document body and embedded links suggest a tactic of disguising malicious links with seemingly innocuous content, such as game-related topics, to trick users into clicking. The presence of numerous external PDF links further indicates a link farm or SEO poisoning attempt to drive traffic to malicious infrastructure.

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://ggtraff.ru/123?keyword=the+stanley+parable+mod+endings In PDF document text
    • https://nugemezan.weebly.com/uploads/1/3/4/3/134359438/mukonenuvagora_jujiditiw_pilofisa_zifebafanumemus.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381294/normal_5f98859cb0146.pdfIn PDF document text
    • https://wonigebegi.weebly.com/uploads/1/3/1/6/131606731/bosozevipiki_bivibiperak_xegomafilibuno_kidoxiruv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/putelekireza/maplestory_wind_archer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc4f0b92-e73f-489c-95aa-43e9102dacfa/77510369619.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/1442/1150/files/90_inch_round_tablecloth_white.pdfIn PDF document text
    • https://s3.amazonaws.com/midipes/vom_schwimmen_in_seen_und_flssen_analyse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/7362/6810/files/vuvexewitipiru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/6879/1228/files/davopogatafedisuse.pdfIn PDF document text
    • https://s3.amazonaws.com/leributafa/bertolt_brecht_biography.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagoba/fools_crow_wisdom_and_power.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/283daca8-7f77-4bc7-9e1f-277e4c078452/4081019421.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15e3ad3c-f3e0-4718-8514-462de78ed4f0/pugixavuzifezonofokas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cca8e221-8021-4acc-add5-070f2698cd9f/simunifoniwotolipabolumox.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C7F 5564 bytes
SHA-256: ce56250008dd982eb4ca34874577a5030b514c4942cfb24329dc1a4ae57fc1d3
font_01_sfnt_off00006f3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F3E 10216 bytes
SHA-256: 954e87286aae1e86ab2021bcf8082cd19848216df4838d8ba531361b914647ae

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