Malicious PDF — malware analysis report

Static analysis result for SHA-256 d22ecf6a5166ce7a…

MALICIOUS

PDF

37.7 KB Created: 2020-08-07 17:53:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0e32c42a90f22e55abea6b6d40eeb6cf SHA-1: 0ef312ab7bfba5d67dd5524ca9d124e941b927ef SHA-256: d22ecf6a5166ce7a91bbd8b03c4418dfbdff8ce360173dfa842f50cbbbb3beb9
152 Risk Score

Malware Insights

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

This PDF document contains numerous links, including one to a known malicious redirector at 'https://ttraff.com/pify?keyword=telecharger+je+me+debrouille+en+anglais+pdf+gratuit'. The document body text and embedded URLs suggest a lure to download a PDF, likely leading to further malicious content or exploitation. The ML classifier strongly flagged this PDF as malicious.

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=telecharger+je+me+debrouille+en+anglais+pdf+gratuit
    • http://files.manosconesperanza.org/uploads/1/3/1/8/131856907/lesigomubapitig_nufat.pdf
    • http://files.elrepco.com/uploads/1/3/2/7/132740214/119545.pdf
    • http://files.independentbaptistmissionforjamaicaandthedominicanrepublic.com/uploads/1/3/1/8/131856655/955162df.pdf
    • http://files.doctorgraniteandcabinets.com/uploads/1/3/1/4/131437625/gatugufufer_ledeso_vepiwamalepa_xusatizol.pdf
    • http://mubogira.trinitychurchmobile.org/uploads/1/3/0/9/130969656/jidusikutekom.pdf
    • https://cdn.shopify.com/s/files/1/0431/0269/9681/files/54358667389.pdf
    • https://cdn.shopify.com/s/files/1/0437/1415/0553/files/88260106448.pdf
    • https://cdn.shopify.com/s/files/1/0436/0952/2339/files/tafigap.pdf
    • https://cdn.shopify.com/s/files/1/0434/3755/5864/files/4767428831.pdf
    • https://cdn.shopify.com/s/files/1/0437/4937/6149/files/understanding_movies_12th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/vagufusas.pdf
    • https://cdn.shopify.com/s/files/1/0437/5789/5831/files/forolijunofi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pizegavegip.pdf
    • https://cdn.shopify.com/s/files/1/0427/6987/5111/files/gedukuxegituvakuzofi.pdf
    • https://cdn.shopify.com/s/files/1/0429/5573/5193/files/bikije.pdf
    • https://cdn.shopify.com/s/files/1/0435/2661/9287/files/xoginedabo.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_off0000517b.bin
2a77a1ce27dfa5d0086e66e1223af2b98453c67ea74cfaf245019abc574385b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x517B 5732 bytes
font_01_sfnt_off000064ca.bin
dd638ffa2841a2ae313a3979a1d47646ec8fe7b7e7961a8b7f6ef4103d47f7a5
pdf-font-stream PDF embedded font (sfnt) at offset 0x64CA 11356 bytes