Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2ff578249a11755…

MALICIOUS

PDF

47.3 KB Created: 2020-08-14 12:03:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0ba3e58227c96539a185f35992b5b014 SHA-1: 398ed2116eca43f3f718536ab6008569193c30b5 SHA-256: f2ff578249a11755c83dbed25eea9b5099bcbc31a1d867e1729346f068ad89e7
152 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, specifically pointing to 'https://ttraff.cc/wb?keyword=range%20rover%20vogue%202008%20workshop%20manual'. This URL is likely used to redirect users to a malicious site. The document body, though partially corrupted, contains text related to a 'Range rover vogue 2008 workshop manual', suggesting a lure to entice users to click the malicious link. The presence of numerous other PDF links, many hosted on cdn.shopify.com, indicates a link farm strategy, further supporting the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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/wb?keyword=range%20rover%20vogue%202008%20workshop%20manual
    • http://files.gonecruisincarclub.com/uploads/1/3/2/6/132682627/4512883.pdf
    • http://files.carsoncitylawn.com/uploads/1/3/1/4/131409200/7616095.pdf
    • http://masivi.auntsadiesbnb.com/uploads/1/3/0/8/130814328/wogebazi.pdf
    • http://files.beachcitypestcontrol.com/uploads/1/3/0/7/130775350/6abc86c.pdf
    • https://cdn.shopify.com/s/files/1/0429/1756/0473/files/ultimate_capcom_vs_snk.pdf
    • https://cdn.shopify.com/s/files/1/0435/4634/5640/files/19433900977.pdf
    • https://cdn.shopify.com/s/files/1/0431/3609/0274/files/fonivo.pdf
    • https://cdn.shopify.com/s/files/1/0434/8251/3561/files/ripavi.pdf
    • https://cdn.shopify.com/s/files/1/0432/6601/5396/files/guriselesusupuseru.pdf
    • https://cdn.shopify.com/s/files/1/0435/7727/8623/files/chasing_cars_lyrics_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0432/7538/7043/files/camaro_repair_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/6624/4766/files/animal_tissue_culture_notes.pdf
    • https://cdn.shopify.com/s/files/1/0434/0921/1557/files/jerolod.pdf
    • https://cdn.shopify.com/s/files/1/0432/3927/6707/files/qing_fei_de_yi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0923/6374/files/30305435893.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_off000061c9.bin
a7b00e6246a543adb3271ae54ca9cbdadfc59c969a081cc87abe6b50b8508e4a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61C9 5676 bytes
font_01_sfnt_off000074f9.bin
332ecdcd382ef0976d8040c0f71d672fa9b6443aa61b43d968c247651c663762		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74F9 14296 bytes
font_02_sfnt_off0000a21e.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA21E 4324 bytes

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