Malicious PDF — malware analysis report

Static analysis result for SHA-256 241f440f0e794661…

MALICIOUS

PDF

52.8 KB Created: 2020-08-18 16:00:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d3656aa752386105d3c7910d4c4e9c3 SHA-1: bd59046e196960462858ff6fd03c608c574d5f7d SHA-256: 241f440f0e7946611c510e1d14f0f2e739c8528055144d6f52851747bb01aeef
128 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=charlie+malayalam+movie++hd+tamilrockers'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which point to benign Shopify domains but include a malicious redirector. The document body, though heavily obfuscated, also contains the malicious URL and several benign URLs, suggesting a lure to download content or visit malicious sites.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=charlie+malayalam+movie++hd+tamilrockers
    • http://xokut.5dmrc.org/uploads/1/3/1/4/131409909/2914318.pdf
    • http://laxaze.cvintegrativetherapies.com/uploads/1/3/1/4/131453060/0b6855879.pdf
    • https://cdn.shopify.com/s/files/1/0429/1434/9219/files/fcc_element_1_study_guide.pdf
    • https://cdn.shopify.com/s/files/1/0430/4519/1841/files/pujabuxe.pdf
    • https://cdn.shopify.com/s/files/1/0431/7426/4996/files/41870126735.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50751207741.pdf
    • https://cdn.shopify.com/s/files/1/0431/6479/5044/files/xorotufu.pdf
    • https://cdn.shopify.com/s/files/1/0438/1474/8322/files/hello_my_old_heart_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0433/7618/1400/files/lekadetovemavisoze.pdf
    • https://cdn.shopify.com/s/files/1/0437/5078/5173/files/biloxo.pdf
    • https://cdn.shopify.com/s/files/1/0440/1764/7766/files/97410676067.pdf
    • https://cdn.shopify.com/s/files/1/0436/8809/9993/files/pandas_write_csv.pdf
    • https://cdn.shopify.com/s/files/1/0428/9282/0643/files/35983926659.pdf
    • https://cdn.shopify.com/s/files/1/0429/9204/2137/files/gomavebokodukite.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006947.bin
3d4760ca295192c89086870ebbac49c5a5945404ea6ab57fca452cf2db5f569a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6947 6440 bytes
font_01_sfnt_off0000793b.bin
ef70551e5aef17f92bc9558d16c1121c807fc736f43eb9d895fbaeec150853c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x793B 5312 bytes
font_02_sfnt_off00008b31.bin
ba82a8c51de1a70d27991a6070ec57744d5f2393f372a04cc816dacf15019e64		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B31 10712 bytes
font_03_sfnt_off0000afd9.bin
f53b43e12006e3d52612f085e6e184fa5bba3604999f0cb64562e6bb996dc06b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAFD9 16384 bytes

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