Malicious PDF — malware analysis report

Static analysis result for SHA-256 370d3d6c80f937e5…

MALICIOUS

PDF

37.3 KB Created: 2020-08-27 15:45:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 694ee3af8d974ac6f95f9ae1e299ce00 SHA-1: e638142ede16f5cf0f88c5cc16b19ccff746d449 SHA-256: 370d3d6c80f937e522e6a0de76790af945d76d84a4e955b4a72bab83dd0aba18
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link farm, with multiple embedded URLs pointing to various PDF files. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.club/pify?keyword=alternatif+ak%25C4%25B1m+devreleri+ve+problem+%25C3%25A7%25C3%25B6z%25C3%25BCmleri+pdf'. This suggests the document is designed to lead users to malicious sites, likely for phishing or malware distribution. 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.club/pify?keyword=alternatif+ak%25C4%25B1m+devreleri+ve+problem+%25C3%25A7%25C3%25B6z%25C3%25BCmleri+pdf
    • http://files.bethgatesglass.com/uploads/1/3/1/3/131381946/deralapafirefir-nevufa.pdf
    • http://files.maltafpd.com/uploads/1/3/0/7/130775921/8ea7c.pdf
    • http://jipufijo.robbieleespencer.com/uploads/1/3/1/3/131383483/4858282.pdf
    • http://files.thegreybirch.com/uploads/1/3/2/6/132696029/c6f212.pdf
    • http://fopom.bridgeportcf.org/uploads/1/3/1/8/131871787/1802088.pdf
    • https://cdn.shopify.com/s/files/1/0428/4288/2215/files/wugivut.pdf
    • https://cdn.shopify.com/s/files/1/0428/8629/9815/files/20567775393.pdf
    • https://cdn.shopify.com/s/files/1/0428/7420/8415/files/13266671169.pdf
    • https://cdn.shopify.com/s/files/1/0428/9832/5671/files/bipote.pdf
    • https://cdn.shopify.com/s/files/1/0440/3606/3397/files/tiniminifegewaji.pdf
    • https://cdn.shopify.com/s/files/1/0431/7177/4615/files/iso_burner_windows_10.pdf
    • https://cdn.shopify.com/s/files/1/0430/7219/2669/files/93391638654.pdf
    • https://cdn.shopify.com/s/files/1/0430/0741/0329/files/98884184010.pdf
    • https://cdn.shopify.com/s/files/1/0435/7757/3535/files/dejar.pdf
    • https://cdn.shopify.com/s/files/1/0427/8606/2495/files/26778848997.pdf
    • https://cdn.shopify.com/s/files/1/0434/6288/5541/files/bts_idol_mp4_planetlagu.pdf
    • https://cdn.shopify.com/s/files/1/0438/8945/9368/files/masibanewopinexulur.pdf
    • https://cdn.shopify.com/s/files/1/0432/7519/0430/files/vocabulary_for_ielts_speaking_download.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_off00005012.bin
ec99523a78e5e1f808be8c0fdf6981f3a32165e1b32904b7c6ff69be2e328068		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5012 5784 bytes
font_01_sfnt_off0000632b.bin
a04ffd79f11f331d39bd8f17574430602ebd219d3b0b9876c0b952e09d1d2dc2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x632B 11112 bytes

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