Malicious PDF — malware analysis report

Static analysis result for SHA-256 22232d05c7255ae1…

MALICIOUS

PDF

60.3 KB Created: 2020-08-09 08:56:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 511a70d68b3a13157ffd607a274977c6 SHA-1: 044885264dc47133cfd31042c52b41f485978a94 SHA-256: 22232d05c7255ae10f4424def5e924a6f498ab3ad33486ebc539bbffd88cfb66
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=topology+msc+maths+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The PDF also contains a mass external PDF link farm, further supporting a malicious intent to distribute content or lead users to compromised sites. No scripts were extracted from this sample.

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=topology+msc+maths+pdf
    • http://files.seamuspatterson.com/uploads/1/3/2/6/132680901/xonuw-judegileleju.pdf
    • http://files.greenpointpianostudio.com/uploads/1/3/1/4/131408024/793e9.pdf
    • http://files.msjkeeler.com/uploads/1/3/2/7/132712623/fezipewe_belum_novotemujus_wixijaz.pdf
    • http://files.jonathanjawilson.com/uploads/1/3/2/6/132682335/7686187.pdf
    • https://cdn.shopify.com/s/files/1/0433/9774/2750/files/53877485614.pdf
    • https://cdn.shopify.com/s/files/1/0433/1631/4277/files/bewuwojexano.pdf
    • https://cdn.shopify.com/s/files/1/0431/3487/7847/files/psychology_file_malayalam.pdf
    • https://cdn.shopify.com/s/files/1/0431/4211/9592/files/john_deere_l120.pdf
    • https://cdn.shopify.com/s/files/1/0440/8374/0822/files/japuzil.pdf
    • https://cdn.shopify.com/s/files/1/0432/7650/1147/files/98153158227.pdf
    • https://cdn.shopify.com/s/files/1/0434/5937/9357/files/pufujomizapujuma.pdf
    • https://cdn.shopify.com/s/files/1/0433/7496/8986/files/cereal_magazine_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/6989/8914/files/mosinowovokubanip.pdf
    • https://cdn.shopify.com/s/files/1/0434/4751/7341/files/wekotojixodizujipefil.pdf
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/lucky_lunch_stardew.pdf
    • https://cdn.shopify.com/s/files/1/0427/5470/3526/files/darkest_hour_cheats.pdf
    • https://cdn.shopify.com/s/files/1/0438/0593/3730/files/comparison_of_adverbs_worksheets.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_off0000a643.bin
8c3ec271abbdc9b3f74f1cbfcc8ea96a6b902f12ace508d933dad568a5536d1c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA643 5524 bytes
font_01_sfnt_off0000b8f4.bin
ecb84b3a6b39a6c95064ab088e0f7029a5db97eff6e24246e6359f1a39436e41		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB8F4 13700 bytes

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