Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8f77be994bee760…

MALICIOUS

PDF

48.4 KB Created: 2020-08-22 14:45:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5c6c2f629fdc588b5e8935dc4c814791 SHA-1: a4a8232e4e934ad821794b6cae0f9b40073e9ce1 SHA-256: b8f77be994bee760f2e5416f607a05cb216deb72bd36c24852f011895c9b75c1
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=facebook+messenger+settings+android+2019'. The document body, though heavily obfuscated, also contains this URL, suggesting a lure to a malicious site. The presence of numerous links, including the identified malicious redirector, indicates an attempt to direct users to potentially harmful content.

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=facebook+messenger+settings+android+2019
    • http://files.shopisadoraboutique.com/uploads/1/3/1/6/131636923/kepakoniw.pdf
    • http://files.ksdanceacademy.com/uploads/1/3/2/6/132696117/wutabor_rorekofabevuvas_gelojorivet_bilojulenatife.pdf
    • http://files.evelethheritage.com/uploads/1/3/1/8/131871643/gipudobukane.pdf
    • http://files.rosielonsdalephotography.co.uk/uploads/1/3/2/3/132302913/pamekumefagirok_ravanux_nebemape.pdf
    • http://files.fbcapalachicola.com/uploads/1/3/1/3/131384605/sotif-sologe.pdf
    • https://cdn.shopify.com/s/files/1/0429/0910/6335/files/minecraft_tp_to_player.pdf
    • https://cdn.shopify.com/s/files/1/0432/6585/1542/files/el_cascanueces_historia.pdf
    • https://cdn.shopify.com/s/files/1/0432/9239/3640/files/gif_in_slack.pdf
    • https://cdn.shopify.com/s/files/1/0430/4388/1114/files/kuzunifobediratadu.pdf
    • https://cdn.shopify.com/s/files/1/0432/6070/6971/files/16130196046.pdf
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/18893643172.pdf
    • https://cdn.shopify.com/s/files/1/0432/0736/0667/files/titijidutimilozekudar.pdf
    • https://cdn.shopify.com/s/files/1/0437/4917/9541/files/gazizisevubonevusaluwedo.pdf
    • https://cdn.shopify.com/s/files/1/0427/6604/1244/files/fizagofuvovedupiwexeger.pdf
    • https://forums.androidcentral.com/showthread.php?t=775927&s=7d0100b2c7e2647e66c8e5d0d22c95c8
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • https://forums.androidcentral.com/showthread.php?t=775927&s=7d0100b2c7e2647e66c8e5d0d22c95c8
    • 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_off000066c2.bin
5937c35909632de8cfaaa73e96ee61194c299c7f8c5d3909eb44509a877c16dc
pdf-font-stream PDF embedded font (sfnt) at offset 0x66C2 5868 bytes
font_01_sfnt_off00007aa2.bin
0adfe495befe9a9cad423b2acfba5c003cb87cbcd507623593b81377e424da9a
pdf-font-stream PDF embedded font (sfnt) at offset 0x7AA2 10488 bytes
font_02_sfnt_off00009e9c.bin
975089639afea594160f6daa1ae948ffc4125994d61a9fd32dce02580f7b6b15
pdf-font-stream PDF embedded font (sfnt) at offset 0x9E9C 16312 bytes