Malicious PDF — malware analysis report

Static analysis result for SHA-256 4914369ad6c34fe6…

MALICIOUS

PDF

41.6 KB Created: 2020-08-13 21:29:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 18a7ca2e74b9321bbcb5ffb26010e2b7 SHA-1: f295e04fbc85e9d90ef9b13a69bddb251d37a7b8 SHA-256: 4914369ad6c34fe65f948183545385c5eb7e16c15550f08f777f22e1c269fdc4
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains multiple links, including one pointing to a known malicious redirector at 'https://ttraff.ru/pify?keyword=burger+king+veggie+burger+calorie+information'. The document body, though partially garbled, also contains this URL, suggesting the primary intent is to redirect users to malicious infrastructure. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy, likely for SEO manipulation or to distribute further malicious content.

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.ru/pify?keyword=burger+king+veggie+burger+calorie+information
    • http://files.kindredcoffeeroasters.com/uploads/1/3/0/7/130739202/1760483.pdf
    • http://files.oakcreekcenter.org/uploads/1/3/0/9/130969686/284eb8c7bba5383.pdf
    • http://keduza.kulanuicounseling.com/uploads/1/3/0/7/130738779/1c556300ddba13d.pdf
    • http://sesej.temeculajunkremoval.com/uploads/1/3/1/4/131406436/jebujajawob_sijurizisugujuw.pdf
    • http://files.t-wallsofjointbasebalad.com/uploads/1/3/1/3/131380063/buvib.pdf
    • https://cdn.shopify.com/s/files/1/0429/6579/4965/files/21754470661.pdf
    • https://cdn.shopify.com/s/files/1/0430/7291/3557/files/sesevogelegiripesavuzeso.pdf
    • https://cdn.shopify.com/s/files/1/0430/1484/8671/files/calendar_year_2020.pdf
    • https://cdn.shopify.com/s/files/1/0429/8070/4405/files/21687658680.pdf
    • https://cdn.shopify.com/s/files/1/0430/4188/2265/files/biotecnologa_agrcola.pdf
    • https://cdn.shopify.com/s/files/1/0430/0711/5423/files/giradurididafid.pdf
    • https://cdn.shopify.com/s/files/1/0436/2086/0064/files/33344366.pdf
    • https://cdn.shopify.com/s/files/1/0429/1543/0553/files/kubodojegafoxiz.pdf
    • https://cdn.shopify.com/s/files/1/0428/8076/2023/files/mazinorozat.pdf
    • https://cdn.shopify.com/s/files/1/0435/5499/6383/files/beylerbeyi_camii.pdf
    • https://cdn.shopify.com/s/files/1/0433/8096/5534/files/simile_poem_template.pdf
    • https://cdn.shopify.com/s/files/1/0434/8038/3653/files/bowflex_xtreme_2_assembly_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/8631/5684/files/lsat_logical_reasoning_practice.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_off0000610a.bin
3dcaeb84936a9b82891fb6ef950e6ddfe83cc1f4c42eb27e72d20b5bbeffb744		 pdf-font-stream PDF embedded font (sfnt) at offset 0x610A 5336 bytes
font_01_sfnt_off0000732c.bin
5476f3b2ef2ac1c532dceb85d91f22011917f0db8abdf326bb1e2e18298ce2c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x732C 10604 bytes

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