Malicious PDF — malware analysis report

Static analysis result for SHA-256 a009dcac041e5095…

MALICIOUS

PDF

38.0 KB Created: 2020-08-13 23:05:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 80df651b1b5af82521c670ec16ecc6a7 SHA-1: b4624a8f7811f5809df5b2b8ef24d93189acd257 SHA-256: a009dcac041e5095dcb080c68b0add3bb3c6d68c6b6c61fd8f5e956aa3abc291
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 numerous embedded links, a common tactic for redirecting users to malicious sites. One critical heuristic firing specifically flagged a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the same URL found in the heuristic firing, reinforcing the malicious intent. The file likely serves as a lure to distribute further malware or conduct phishing attacks.

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=daroga+ji+likhi+likhi+na+report+saiyan
    • http://rofox.truevibrancy.com/uploads/1/3/1/8/131856907/bufuni.pdf
    • http://files.tif.design/uploads/1/3/0/7/130739570/pejufikijid.pdf
    • http://files.subterfuge-au.com/uploads/1/3/0/7/130738841/17219b5a.pdf
    • http://sefur.patrickchu.net/uploads/1/3/1/4/131408970/vugaxotifi_pufupasakip_verixumarebowab.pdf
    • http://gosex.hairandmakeupbylu.com/uploads/1/3/1/1/131163599/a6dd03b.pdf
    • https://cdn.shopify.com/s/files/1/0432/9324/5590/files/16743341771.pdf
    • https://cdn.shopify.com/s/files/1/0428/4622/4551/files/87158692451.pdf
    • https://cdn.shopify.com/s/files/1/0436/9511/2347/files/gotozixofirivub.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sejil.pdf
    • https://cdn.shopify.com/s/files/1/0435/7101/9935/files/kotos.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mojijemorewowasimagaxo.pdf
    • https://cdn.shopify.com/s/files/1/0433/9977/4364/files/cavitation_number.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/26450106566.pdf
    • https://cdn.shopify.com/s/files/1/0429/8568/5153/files/43249183987.pdf
    • https://cdn.shopify.com/s/files/1/0429/6019/1641/files/65312965714.pdf
    • https://cdn.shopify.com/s/files/1/0428/0044/7655/files/57942776255.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_off00004e93.bin
2f6513cf2405a9d2c66e19de4e0bce21978847c8722a93a98b2625ba37c7f142		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E93 5324 bytes
font_01_sfnt_off000060b6.bin
97c5a64be27312ed8b84f88461bb671ba1d6bd5f39652a5f36a4d554f5a266a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60B6 13168 bytes

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