Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0b41f096f4d3d37…

MALICIOUS

PDF

48.9 KB Created: 2020-08-12 15:36:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d24dc033404d7c2a2ffbf9370d98a50 SHA-1: 67498f7a5075d43e9689a22fd5fac0285a2d088e SHA-256: d0b41f096f4d3d37bea739fbdf74f5a72d2af309209cde973affe79e79f4d7c6
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body, though partially corrupted, includes the URL 'https://ttraff.cc/pify?keyword=qaseedathul+burda+malayalam+pdf', which is flagged as malicious. Additionally, the PDF is identified as a link farm, suggesting an attempt to distribute traffic to various external resources, some of which are hosted on potentially untrusted domains.

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=qaseedathul+burda+malayalam+pdf
    • http://ketuxul.dancelimonadas.com/uploads/1/3/1/3/131398140/lopabimeradina.pdf
    • http://files.datamakers.com/uploads/1/3/0/9/130969231/sekuzun_debelel_tejiwege.pdf
    • http://ganapa.cowateredplan.org/uploads/1/3/0/7/130740141/9252236.pdf
    • https://cdn.shopify.com/s/files/1/0427/7082/5382/files/85761180089.pdf
    • https://cdn.shopify.com/s/files/1/0433/6805/4940/files/big_ideas_math_book_6th_grade.pdf
    • https://cdn.shopify.com/s/files/1/0433/6209/1163/files/46572287700.pdf
    • https://cdn.shopify.com/s/files/1/0438/3932/4325/files/76361233656.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/59022585862.pdf
    • https://cdn.shopify.com/s/files/1/0435/2638/9912/files/definitions_of_sustainable_development.pdf
    • https://cdn.shopify.com/s/files/1/0441/2522/5112/files/51004011278.pdf
    • https://cdn.shopify.com/s/files/1/0429/7228/3033/files/carmelina_study.pdf
    • https://cdn.shopify.com/s/files/1/0437/5465/1799/files/effects_of_bullying_research_paper.pdf
    • https://cdn.shopify.com/s/files/1/0434/1805/8901/files/69889702986.pdf
    • https://cdn.shopify.com/s/files/1/0434/8477/4552/files/688435023.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_off000073f3.bin
56dda5dc7c8935bcdbdb92677f664a44a75617d82fb23d4e9dac4b44eb7656dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73F3 5200 bytes
font_01_sfnt_off00008597.bin
0e1f0453b8c076d88f3d85527434ebd25bdc2d206e55013773547deba39f2604		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8597 10204 bytes
font_02_sfnt_off0000a83d.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA83D 4324 bytes

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