Malicious PDF — malware analysis report

Static analysis result for SHA-256 1de499b3901f477e…

MALICIOUS

PDF

44.6 KB Created: 2020-08-22 23:01:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 552a9be76dc679559646baa16b831e7b SHA-1: 0bca121bb630d817dde21506a7975bcfa09c9a46 SHA-256: 1de499b3901f477e4aa939c84723438469a99e8440aa5490e7c3e544b987bdbc
120 Risk Score

Malware Insights

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

The PDF contains embedded links designed to redirect users to malicious infrastructure, specifically identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The document body, though heavily obfuscated, contains text that appears to be a lure related to movie downloads, aiming to trick users into clicking the malicious link. The primary IOC is the redirector URL, which is part of a link farm strategy.

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.com/pify?keyword=hollywood+tamil+dubbed+movies++in+tamilrockers
    • http://terunaz.onemindset.org/uploads/1/3/2/6/132695535/23fc45.pdf
    • http://teneg.arcadiafsc.org/uploads/1/3/1/4/131407300/xopap-kobasusetiforu-sewonudiwa-zigudezudun.pdf
    • http://files.yellowsubdownunder.com/uploads/1/3/2/8/132814048/9596652.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/98559129476.pdf
    • https://cdn.shopify.com/s/files/1/0434/3041/2437/files/juzujifuwofitobiwisu.pdf
    • https://cdn.shopify.com/s/files/1/0430/6731/0231/files/verb_in_past_tense_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0438/9024/5787/files/94759320618.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nowivozepax.pdf
    • https://cdn.shopify.com/s/files/1/0430/5901/9927/files/dimamidebafalexosuw.pdf
    • https://cdn.shopify.com/s/files/1/0427/7387/2807/files/77007699072.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_off00006fd7.bin
0ad3b8aa493c78c9dfd6072bd709871baf41c9205c7c913028399b654933753c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD7 5504 bytes
font_01_sfnt_off0000828f.bin
c4d7d8967047d8a8d3a6c512e84cd2294c3ad6ae3084c8a949e020780227d38c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x828F 10300 bytes

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