Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7abe5751741fc7d…

MALICIOUS

PDF

55.6 KB Created: 2020-08-29 21:22:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a967bc2a4a52217836b3cc25d82bd042 SHA-1: 77cf6ea48c50f08c3e848d7157c7ff9d74df7f1b SHA-256: e7abe5751741fc7d8ebcd89b54c7d41012323bc3f2236d34f4d910e8acb0d8f6
150 Risk Score

Malware Insights

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

The PDF contains a deceptive document body and embeds a link that redirects to known malicious infrastructure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags this behavior. The ML classifier also strongly indicated maliciousness. The primary attack vector appears to be social engineering via a deceptive document, leading the user to click a malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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/wix?keyword=warning+letter+for+sick+leave+abuse
    • https://cdn.shopify.com/s/files/1/0430/6878/4791/files/carcassi_etudes.pdf
    • https://cdn.shopify.com/s/files/1/0461/3809/7817/files/jogebodumirifobi.pdf
    • https://cdn.shopify.com/s/files/1/0461/5710/3267/files/offline_multiplayer_shooting_games_for_android.pdf
    • https://cdn.shopify.com/s/files/1/0432/2210/6271/files/iso_14010_resumen.pdf
    • https://cdn.shopify.com/s/files/1/0428/7656/7711/files/forenemifibo.pdf
    • https://cdn.shopify.com/s/files/1/0431/6997/2392/files/53961402609.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/92313200312.pdf
    • https://cdn.shopify.com/s/files/1/0427/8140/9436/files/78196053771.pdf
    • https://cdn.shopify.com/s/files/1/0427/8022/9791/files/73976426132.pdf
    • https://cdn.shopify.com/s/files/1/0451/4558/7877/files/budget_2020_in_marathi_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/1967/2472/files/kudoxixumu.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_off00009d66.bin
13e44015ad915f50d752450b3aa662e948aa697bc8e452710f955588429f1e3a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D66 5328 bytes
font_01_sfnt_off0000afa5.bin
f437e969512ebbb67b5e982f382773c40c7e9d8478d3dff613fff00b5d2dafe7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAFA5 9908 bytes

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