Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2524583a6974d57…

MALICIOUS

PDF

40.5 KB Created: 2020-08-21 17:54:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ccfee442b6bfaa4d8d617e5ac58487f8 SHA-1: ea56e260a490614209dfda1e26ddabe3cfc3e9d8 SHA-256: e2524583a6974d57675d4d2db3011908c97142c291871f2b2df21aca4e752b85
152 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final malicious destination. The document body, though heavily obfuscated, contains text related to 'Dragon quest 2 guide' and the malicious URL, suggesting a lure to entice users to click the link. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy to improve search engine visibility for 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.com/pify?keyword=dragon+quest+2+guide
    • http://files.blackcommunityhousingservice.org/uploads/1/3/1/4/131438098/62426.pdf
    • http://files.theurbanfarmhousestore.com/uploads/1/3/1/0/131070689/a3b760f0f7679c3.pdf
    • http://xafata.hitthebarre.com/uploads/1/3/1/3/131383483/a546f.pdf
    • http://files.talsegevphotos.com/uploads/1/3/1/3/131398555/kiwuvibekuwotiwaxaja.pdf
    • http://files.calverthighschoolorchestra.com/uploads/1/3/0/7/130739500/bafegelodajer_wejawibuvib_tifip_simigafevuf.pdf
    • https://cdn.shopify.com/s/files/1/0428/9894/8255/files/64523541679.pdf
    • https://cdn.shopify.com/s/files/1/0431/9156/6493/files/ls_on_xbox_controller.pdf
    • https://cdn.shopify.com/s/files/1/0429/9728/5027/files/methodology_of_mathematical_economics_and_econometrics.pdf
    • https://cdn.shopify.com/s/files/1/0436/0673/7053/files/lion_sleeps_tonight_ukulele_chords.pdf
    • https://cdn.shopify.com/s/files/1/0427/8878/2236/files/54410958736.pdf
    • https://cdn.shopify.com/s/files/1/0433/6871/0300/files/plantronics_backbeat_pro_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/3061/8020/files/95676725284.pdf
    • https://cdn.shopify.com/s/files/1/0432/3504/9640/files/pugobudodomatelalosural.pdf
    • https://cdn.shopify.com/s/files/1/0438/6720/9893/files/difference_between_inward_and_outward_radial_flow_turbine.pdf
    • https://cdn.shopify.com/s/files/1/0433/5458/7288/files/4646748451.pdf
    • https://cdn.shopify.com/s/files/1/0431/4375/7985/files/katagubaw.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_off0000627f.bin
88df9a2f90de4fee13702a9b9a0dc5ff5330b39c658f9209d3161b179ce87932		 pdf-font-stream PDF embedded font (sfnt) at offset 0x627F 5216 bytes
font_01_sfnt_off00007441.bin
6be2babd4ad55c3d15f7a37f5ebbad4e48ab4b864fc784e050b44b7478f03fab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7441 9732 bytes

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