Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe66d9bc3b476ef3…

MALICIOUS

PDF

52.2 KB Created: 2020-10-16 05:28:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: fcb494e53d354ccbd5cf12bc65da3192 SHA-1: 7aa747dc5f24a0fa693ba73570f41a18509a0f66 SHA-256: fe66d9bc3b476ef3c53080658f8090f54c440613eba7019ef07441341c80d082
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link farm and a specific malicious redirector URL, suggesting an attempt to drive traffic to potentially harmful sites. The document body, though heavily obfuscated, contains text related to a 'Honeywell 1900 scanner manual pdf' and the malicious URL, indicating a lure to disguise the malicious intent. The presence of numerous PDF links, including one to a redirector, points towards a link farm or SEO poisoning attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.club/pify?keyword=honeywell+1900+scanner+manual+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4372105/normal_5f8867e1d8e3f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373509/normal_5f88f75334ee3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366376/normal_5f88015cd2c89.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/2812/3295/files/vexenoxaporezif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5642/1278/files/mathews_mission_craze_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4584/6168/files/41989807530.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/4682/7694/files/lonely_planet_bhutan_travel_guide_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1856/5278/files/wironofaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5529/8213/files/rupiwuxilapexomefopugas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/804c61a5-514b-48f8-b1a7-9e4502d30f08/bekizudoramusodogile.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bce6f53f-3700-4995-b24c-0c2517fc39e9/15530753112.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a929d8f-86a0-46cb-95f1-c1a8f8956dc0/34673004062.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/46f656c1-214d-4d3c-98e5-90054b8396b2/navotag.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/22dabcdb-40dc-4f87-a61a-9b107b9c15c5/37808600196.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f83c2e9-64b9-4441-8936-0ba5cdac21b3/98954810942.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d7a3acd7-6323-4d09-8945-1b98917d35c0/16590913693.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19b20b25-9c5f-492f-bd00-351155e17084/tizetaburewivawofeloxovuf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c409262-51a6-4de9-aedb-7a8ec69b2f8c/fofefikox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/872b9bb2-cebc-4211-8ff2-9255c3d4a3a0/zozavegunenuvusuk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b21043e2-f0ef-4e8f-a9db-2288ec476963/79597901029.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0000a852.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xA852 17812 bytes
SHA-256: 65efd89f69ddd720701c056251893e4916efc8f32573a147a02d6e2f0ae51421
font_00_sfnt_off00007218.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7218 5808 bytes
SHA-256: 05b9f803bc5c3f7ea428208d97323701b655c24161504ffc39063707f374d32f
font_01_sfnt_off000085dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85DC 9980 bytes
SHA-256: 125eaa9f94fbba8f3fc66ad955e5f3d2bf22770a18e7623079a7000c2615a3e1

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