Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ba2380d2780f898…

MALICIOUS

PDF

45.6 KB Created: 2020-08-12 05:23:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: df2c5c54e2cc973c5f6505ffb0d6e8e5 SHA-1: 7d091f8f66c02979663f705be0653bc67b4d63d3 SHA-256: 2ba2380d2780f898ac1dfe860d1e509b04791ffed72e79c0e42f79efec4e8c4b
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.cc, which is designed to lead users to malicious content. The document body, though partially corrupted, contains text suggesting a lure for a 'fajardo estimate pdf download', further supporting the phishing attempt. The presence of numerous Shopify links, while many are benign, indicates a link farm strategy to obscure the malicious destination.

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.cc/wb?keyword=fajardo%20estimate%20pdf%20download
    • http://files.catharsistprophet.com/uploads/1/3/0/7/130739043/3466233.pdf
    • http://files.athanasios.co/uploads/1/3/1/4/131454850/715f8d4c.pdf
    • http://files.chennaishiayouth.com/uploads/1/3/1/8/131856743/revakixegubixeju.pdf
    • http://delajad.gofrostyourselfedibleimages.com/uploads/1/3/1/3/131398140/5165c79e49a96.pdf
    • http://files.marylynnswenson.com/uploads/1/3/1/4/131438651/sokejofomuso.pdf
    • https://cdn.shopify.com/s/files/1/0431/3183/0421/files/pa_drivers_license_center.pdf
    • https://cdn.shopify.com/s/files/1/0437/4393/6673/files/fupusufe.pdf
    • https://cdn.shopify.com/s/files/1/0434/3431/1845/files/30870165563.pdf
    • https://cdn.shopify.com/s/files/1/0438/4840/1046/files/theatre_of_the_absurd_in_waiting_for_godot.pdf
    • https://cdn.shopify.com/s/files/1/0435/8592/9375/files/wezija.pdf
    • https://cdn.shopify.com/s/files/1/0438/3339/3309/files/57063038872.pdf
    • https://cdn.shopify.com/s/files/1/0434/7628/7648/files/doxojugodowasugegefixed.pdf
    • https://cdn.shopify.com/s/files/1/0441/2522/5112/files/pivarezapi.pdf
    • https://cdn.shopify.com/s/files/1/0443/2723/9836/files/natural_nanomaterials.pdf
    • https://cdn.shopify.com/s/files/1/0436/3635/9326/files/wovetodosajaxowemusu.pdf
    • https://cdn.shopify.com/s/files/1/0429/7218/4732/files/pegokug.pdf
    • https://cdn.shopify.com/s/files/1/0446/2054/6211/files/30011204193.pdf
    • https://cdn.shopify.com/s/files/1/0433/8299/7141/files/non_aqueous_titration_notes.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_off00006da7.bin
a98db0db67442a6dcc6ea374d0aa500dc0de3c3dae7e8e018863193f08db9c53		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DA7 5312 bytes
font_01_sfnt_off00007fb8.bin
830a08b4bc7fa0fbca3132c17ba3fccf4593543e601f7e1e640f5362d8da1688		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FB8 12488 bytes

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