Malicious PDF — malware analysis report

Static analysis result for SHA-256 822354765260f1b5…

MALICIOUS

PDF

45.2 KB Created: 2020-08-01 09:36:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 74f9aa2a9fec132f516726b21e7347ce SHA-1: cdf60e8051b2683ddb96e2dfd2049657e9d46bd9 SHA-256: 822354765260f1b575464e3b9c3cb10aa67e65dcd6427236e42de2f2eb03f147
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to the presence of a critical heuristic firing for a PDF redirector link pointing to 'https://ttraff.cc/pify?keyword=not+enough+items+1.+6+4'. Additionally, another critical heuristic detected a mass external PDF link farm, with many links hosted on cdn.shopify.com. The document body contains garbled text but includes the same redirector URL. The combination of these factors strongly suggests a phishing or malicious redirection 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.cc/pify?keyword=not+enough+items+1.+6+4
    • http://files.gmperspectives.com/uploads/1/3/0/8/130874641/7731833.pdf
    • http://files.physio-on-the-go.com/uploads/1/3/0/7/130776167/vobotozobo_jonogovapeg_rufomew_korawovuj.pdf
    • http://files.tourstransfersbyvan.com/uploads/1/3/2/7/132710748/xavemon.pdf
    • https://cdn.shopify.com/s/files/1/0430/3391/9645/files/32315537859.pdf
    • https://cdn.shopify.com/s/files/1/0428/7404/4579/files/dark_souls_cheats.pdf
    • https://cdn.shopify.com/s/files/1/0434/4964/7264/files/15015890108.pdf
    • https://cdn.shopify.com/s/files/1/0432/5729/9097/files/mexigorema.pdf
    • https://cdn.shopify.com/s/files/1/0430/8677/4436/files/55581544849.pdf
    • https://cdn.shopify.com/s/files/1/0433/8027/7406/files/bafaxirijafin.pdf
    • https://cdn.shopify.com/s/files/1/0430/1763/3949/files/91023510601.pdf
    • https://cdn.shopify.com/s/files/1/0440/3278/6597/files/35019767135.pdf
    • https://cdn.shopify.com/s/files/1/0430/4257/0402/files/zedezotekazi.pdf
    • https://cdn.shopify.com/s/files/1/0433/7968/7574/files/22311445652.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fawalonilon.pdf
    • https://cdn.shopify.com/s/files/1/0432/9888/1704/files/33022102457.pdf
    • https://cdn.shopify.com/s/files/1/0429/8234/2815/files/45670536799.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_off00007160.bin
63da6721716de2103c5e7c4ba21b5eccfba5e19eeac62cf48b2294b042868026
pdf-font-stream PDF embedded font (sfnt) at offset 0x7160 5056 bytes
font_01_sfnt_off0000828d.bin
6070b39d1bffbd064beaa8658049f4fb30d38d29078a8d80d6b2f49b11d3d236
pdf-font-stream PDF embedded font (sfnt) at offset 0x828D 10868 bytes