Malicious PDF — malware analysis report

Static analysis result for SHA-256 4001556aecffeaa9…

MALICIOUS

PDF

40.3 KB Created: 2020-08-25 17:57:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 677e0d96532fc6f2785a4ce67611dc5d SHA-1: ea3b99acb7870d266399e2306bad9a936f17b28a SHA-256: 4001556aecffeaa924574de158b953b406788207fa2a121f7619b004aca10638
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is used in conjunction with a search query for 'alcohol 120 offline installer free'. Additionally, it exhibits characteristics of a PDF SEO link farm, embedding numerous external links, many hosted on 'cdn.shopify.com'. The primary malicious IOC is the redirector URL, suggesting a phishing or malware distribution attempt.

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=alcohol+120+offline+installer+free
    • http://files.westwoodia.com/uploads/1/3/0/7/130776769/vematanajurisu.pdf
    • http://pawatapaj.daankahmann.com/uploads/1/3/1/8/131871390/zugolilixum-nipexusevedex.pdf
    • http://davituwu.meganmmoore.com/uploads/1/3/0/7/130738973/jufemeresigifodakug.pdf
    • https://cdn.shopify.com/s/files/1/0463/3044/5981/files/bajrangi_bhaijaan_film_hd.pdf
    • https://cdn.shopify.com/s/files/1/0431/7020/1760/files/82669228696.pdf
    • https://cdn.shopify.com/s/files/1/0464/6449/9880/files/paburivodejolum.pdf
    • https://cdn.shopify.com/s/files/1/0435/4739/4199/files/nesim.pdf
    • https://cdn.shopify.com/s/files/1/0436/1905/7826/files/fusasotapedul.pdf
    • https://cdn.shopify.com/s/files/1/0432/1850/1799/files/holes_louis_sachar_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/6455/6710/files/skf_deep_groove_ball_bearing_catalog.pdf
    • https://cdn.shopify.com/s/files/1/0430/9565/4554/files/sefagizupe.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/7082322425.pdf
    • https://cdn.shopify.com/s/files/1/0435/1895/1576/files/tagevupasunewonojovunizud.pdf
    • https://cdn.shopify.com/s/files/1/0435/0168/2843/files/bnmu_part_1_result_2019_marksheet.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_off00005efd.bin
0407a054c08e260b1f0784e7755bee179fcbcbbea2cae72f91fd6f6f9167472b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EFD 5284 bytes
font_01_sfnt_off000070e4.bin
6349413bc2405371b3eaa38b00f414fc4ee0bfeca57387d3c8a68da80925dbcd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70E4 10804 bytes

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