Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8f91f9be975b409…

MALICIOUS

PDF

42.0 KB Created: 2020-08-23 05:40:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8b1b00304e9130717f43752cda4e5383 SHA-1: 79842cd63e1b100fa3931db93987c6471bd353d2 SHA-256: f8f91f9be975b409f89d3016ad0f6a43ac416626cb6d541b13330ad3def8ebe6
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=pm+awas+yojana+gramin+online+form+2019', is designed to redirect users to malicious content. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, many of which are hosted on Shopify. The primary malicious URL is the most significant IOC.

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/pify?keyword=pm+awas+yojana+gramin+online+form+2019
    • http://kikuke.oakwoodbaptistmilan.net/uploads/1/3/0/7/130776031/ruwomimiloli-siragesobev-jutiv-xukizoweju.pdf
    • http://files.wanderwellfitness.com/uploads/1/3/0/7/130739835/e803125cd269.pdf
    • https://cdn.shopify.com/s/files/1/0427/4959/1718/files/5806260949.pdf
    • https://cdn.shopify.com/s/files/1/0430/3123/2674/files/medication_antidotes.pdf
    • https://cdn.shopify.com/s/files/1/0433/6130/4744/files/nezodowefuxigetubuxaso.pdf
    • https://cdn.shopify.com/s/files/1/0431/9150/0961/files/lakhan_bharti_video_songs.pdf
    • https://cdn.shopify.com/s/files/1/0454/6841/8206/files/baixar_editor_gratuito.pdf
    • https://cdn.shopify.com/s/files/1/0434/0292/0086/files/robbery_bob_apk_rexdl.pdf
    • https://cdn.shopify.com/s/files/1/0434/1586/3447/files/circuit_symbols_chart.pdf
    • https://cdn.shopify.com/s/files/1/0431/4071/0566/files/27207747344.pdf
    • https://cdn.shopify.com/s/files/1/0432/1122/7300/files/65175581345.pdf
    • https://cdn.shopify.com/s/files/1/0438/4771/2928/files/kemexivurekepibedewax.pdf
    • https://cdn.shopify.com/s/files/1/0434/2326/9014/files/wuxotitorujekotutoxetu.pdf
    • https://cdn.shopify.com/s/files/1/0459/9247/6834/files/aguner_poroshmoni_book.pdf
    • https://cdn.shopify.com/s/files/1/0438/2903/5158/files/animal_tissue_culture_books.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_off000063cd.bin
5e081100bcc6708d59366ef4d0ed8bfc3f949f610dd61d8f64d49abfb13935c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63CD 5840 bytes
font_01_sfnt_off000077b9.bin
b6e566ef035c2a033fa11adb018a8ee3ba44be5b7a955e8a7fda1cc15490af5e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77B9 10320 bytes

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