Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5c2654e0fe79c06…

MALICIOUS

PDF

50.8 KB Created: 2020-08-11 09:24:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c95cc9dca866ad04ae165430bd85edb6 SHA-1: dc1a5156930dc02a7225fe2f0b0a1e8d56bb6abe SHA-256: c5c2654e0fe79c06715c57e56713ddb1f763f27df36819540f7a98763519b2cd
152 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing indicating a redirector link to 'https://ttraff.com/pify?keyword=plan+de+auditoria+interna+pdf'. This suggests the document is designed to lure users to malicious sites. The presence of numerous Shopify links, while some are benign, contributes to a link farm strategy. No scripts were extracted, but the primary attack vector appears to be social engineering via malicious links.

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=plan+de+auditoria+interna+pdf
    • http://vedaworu.cdsacademy.co.uk/uploads/1/3/1/3/131378776/rafizik.pdf
    • http://files.sandaharrboerboels.com/uploads/1/3/2/6/132681566/6896535.pdf
    • http://files.littleflowerfloraldesign.com/uploads/1/3/0/7/130738919/wikelarosap_timipojufes_zurugonokorola.pdf
    • https://cdn.shopify.com/s/files/1/0432/0103/6443/files/2675534779.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/josuzafegeda.pdf
    • https://cdn.shopify.com/s/files/1/0432/3393/5519/files/vocabulary_building_activities_high_school.pdf
    • https://cdn.shopify.com/s/files/1/0428/9092/0099/files/54240006350.pdf
    • https://cdn.shopify.com/s/files/1/0429/4233/3084/files/xijorexiwotavodukozaf.pdf
    • https://cdn.shopify.com/s/files/1/0429/7926/2615/files/kodevejevaforod.pdf
    • https://cdn.shopify.com/s/files/1/0437/7945/7173/files/world_art_history_timeline.pdf
    • https://cdn.shopify.com/s/files/1/0435/1839/4523/files/57334080173.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/76685421079.pdf
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/vafezo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/bob_marley_biography.pdf
    • https://cdn.shopify.com/s/files/1/0432/1997/6350/files/20717252326.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f46.bin
133f6b62daad28c50be810882f725506003196e8c00605ea2c50b8bb913ed6c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F46 4740 bytes
font_01_sfnt_off00006f67.bin
4cc3cee55df6fbbb83e64f1fbbbb7ca7517e1c7825e11581c84910d713e8f267		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F67 10644 bytes
font_02_sfnt_off00009251.bin
a851966ee72adb5318d98ce20f66262954986750e9854c8c821b1f9517f8dfb2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9251 18064 bytes
font_03_sfnt_off0000ae30.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAE30 4324 bytes

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