Malicious PDF — malware analysis report

Static analysis result for SHA-256 9663e2b1548f01ae…

MALICIOUS

PDF

49.4 KB Created: 2020-08-17 08:45:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ae9a697ddbd84a0c76a2776da987be90 SHA-1: 0034f4d8d7987f9f6063eeb5df36d3b2ea36f09d SHA-256: 9663e2b1548f01aeae31daf2309f1715b2e705cbbdbdc676ce3f0eb1ec88c2da
150 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final destination. The document body, though heavily obfuscated, contains text related to 'geometry solutions' and the redirector URL, suggesting a lure to entice users to click the malicious link. The presence of a large number of external PDF links also indicates a link farm, a common tactic for SEO poisoning or distributing malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=antrenmanlarla+geometri+2+pdf+%25C3%25A7%25C3%25B6z%25C3%25BCmleri
    • http://files.awaken--a--generation.com/uploads/1/3/1/3/131379639/7862764.pdf
    • http://files.fourcornersboardofrealtors.net/uploads/1/3/1/0/131071063/fawabepawimigiz.pdf
    • http://gomus.rockingchairuniversity.com/uploads/1/3/1/4/131482975/424765.pdf
    • http://files.konext.org/uploads/1/3/0/8/130814063/4367989.pdf
    • https://cdn.shopify.com/s/files/1/0437/9266/2688/files/26531295810.pdf
    • https://cdn.shopify.com/s/files/1/0427/8996/1884/files/gugenupasud.pdf
    • https://cdn.shopify.com/s/files/1/0433/8545/4757/files/cccam_2._3_2_openatv.pdf
    • https://cdn.shopify.com/s/files/1/0433/5098/2821/files/24278059526.pdf
    • https://cdn.shopify.com/s/files/1/0438/5662/5829/files/47508713062.pdf
    • https://cdn.shopify.com/s/files/1/0430/3365/7498/files/wekafosiwopanakisisiwi.pdf
    • https://cdn.shopify.com/s/files/1/0448/4520/3618/files/celi_4_prove_di_esame.pdf
    • https://cdn.shopify.com/s/files/1/0432/0215/0557/files/john_deere_314_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/5973/9814/files/rixoxivegoz.pdf
    • https://cdn.shopify.com/s/files/1/0427/6623/7852/files/tabeer_ur_roya_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/3858/8584/files/kekayaan_budaya_indonesia.pdf
    • https://cdn.shopify.com/s/files/1/0437/6713/6413/files/vamurituzariju.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_off0000639f.bin
ca690bdbc65248bd3290612f8bd031f0cb1a8b5c08eef49af0e76c6184113939
pdf-font-stream PDF embedded font (sfnt) at offset 0x639F 3284 bytes
font_01_sfnt_off00006f39.bin
91ae927ff1fdd6b6fcd174ee17f56fa417141c159e97ad529c4dce366d28bc86
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F39 5580 bytes
font_02_sfnt_off000081d4.bin
5ac27eae987fba95f46c86bf9ab5448d0e34bb28b6606a796962fbce597f4b97
pdf-font-stream PDF embedded font (sfnt) at offset 0x81D4 11980 bytes
font_03_sfnt_off0000a706.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0xA706 4324 bytes