Malicious PDF — malware analysis report

Static analysis result for SHA-256 efd12fb65d8521b9…

MALICIOUS

PDF

44.5 KB Created: 2020-08-31 07:44:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5364d643c50e41abcf5e27b66bf71da0 SHA-1: ff00cf9efa81c1beef323007dee5c134f3ac998c SHA-256: efd12fb65d8521b9757c348ba1102c44289b038144db42ea6be8fbc62e4671a3
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with one specifically identified as a malicious redirector pointing to 'https://ttraff.com/wix?keyword=ambasamuthiram+ambani+full+movie++tamilrockers'. The document body, though heavily obfuscated, appears to contain references to this URL and other PDF links, suggesting a link farm or phishing attempt. The presence of a malicious redirector indicates an intent to lead the user to a harmful destination.

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.com/wix?keyword=ambasamuthiram+ambani+full+movie++tamilrockers
    • https://static.usrfiles.com/ugd/2e4eb4_a9ea09bf2cf44c44aa63df622147ebfc.pdf
    • https://static.usrfiles.com/ugd/8b2c09_191d38ec1dc54850a6dab46f2d532284.pdf
    • https://static.usrfiles.com/ugd/0dcf4b_664c734667f74a9994ab0740ff157a2b.pdf
    • https://cdn.shopify.com/s/files/1/0431/8874/8452/files/kedakebelemimufojemiw.pdf
    • https://cdn.shopify.com/s/files/1/0433/9928/2845/files/77491261678.pdf
    • https://cdn.shopify.com/s/files/1/0460/7672/3364/files/trial_of_grasses_order.pdf
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/ripuwanixiwofis.pdf
    • https://cdn.shopify.com/s/files/1/0440/6188/4568/files/lokixevubapupiz.pdf
    • https://cdn.shopify.com/s/files/1/0436/6568/6681/files/2016_can_am_defender_hd10_service_ma.pdf
    • https://cdn.shopify.com/s/files/1/0427/7728/0671/files/attestation_de_salaire_cnss.pdf
    • https://cdn.shopify.com/s/files/1/0434/7835/2022/files/lullaby_of_birdland_real_book.pdf
    • https://cdn.shopify.com/s/files/1/0434/6213/1869/files/zefevuzosiko.pdf
    • https://cdn.shopify.com/s/files/1/0454/7267/8054/files/resident_evil_4_mod_apk_data_marshmallow.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005854.bin
9675c9daa1f28ba7a5a037ecbd696f4a2c4cd99f038e898a2e02257145b25bf6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5854 5372 bytes
font_01_sfnt_off00006a79.bin
9e3963db97d3c078569a509c8efcf37f00261e0220fb11d56bb74221f5ecdddb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A79 10696 bytes
font_02_sfnt_off00008f05.bin
4bd16c8abd39118228c1571b0005d4eb3b3e943e572fd92a2a80cfcb7b749349		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F05 16164 bytes

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