Malicious PDF — malware analysis report

Static analysis result for SHA-256 261ab13ae6ff027e…

MALICIOUS

PDF

38.0 KB Created: 2020-08-18 17:56:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 70b260726a9b217c7e1b140565d054bc SHA-1: c2753ff5af89ee14a0db05aef1ff912e08ba6063 SHA-256: 261ab13ae6ff027e7a96056a8f44511cc1c758f910f39596eb5ed2a8329f4778
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=poovarasan+tamil+movie+video+song'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on shopify.com. The document body, though heavily obfuscated, also contains the same redirector URL and several shopify.com URLs, reinforcing the lure. The primary intent appears to be redirecting the user to malicious infrastructure.

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/pify?keyword=poovarasan+tamil+movie+video+song
    • http://fapege.caps-club.org/uploads/1/3/1/4/131412032/romudo.pdf
    • https://cdn.shopify.com/s/files/1/0429/1294/0188/files/fafebodevogaluden.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tiwimuz.pdf
    • https://cdn.shopify.com/s/files/1/0447/9015/3365/files/sindrome_de_banda_iliotibial.pdf
    • https://cdn.shopify.com/s/files/1/0429/1241/5897/files/43635003836.pdf
    • https://cdn.shopify.com/s/files/1/0432/2947/9076/files/77132305259.pdf
    • https://cdn.shopify.com/s/files/1/0429/0582/9532/files/39855957315.pdf
    • https://cdn.shopify.com/s/files/1/0428/8135/1839/files/68070905895.pdf
    • https://cdn.shopify.com/s/files/1/0437/9534/9666/files/accounting_concepts_and_principles.pdf
    • https://cdn.shopify.com/s/files/1/0428/6735/9900/files/cells_and_their_organelles_answer_key.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_off00004adb.bin
5a582536ff240f5888b3a85e185b865430dc890cf5dfe00e54e0e39e9dfcbc7e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4ADB 4996 bytes
font_01_sfnt_off00005bb7.bin
a4f6fe538775ee6956049c0a218142b3d34d9f015f8194c8c0c42a8cb948f4e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BB7 9796 bytes
font_02_sfnt_off00007d59.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D59 4324 bytes

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