Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd263426d40a2e67…

MALICIOUS

PDF

55.1 KB Created: 2020-08-06 21:35:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4a75efdc5e47ec21d5691fba8813c543 SHA-1: b21a8e11158a605543c9bc7e3d697a1780a7ad27 SHA-256: dd263426d40a2e674f9269e2f1a327d777ba2f35d340807a88ee83f21dbf652e
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'B.ed syllabus 2019-20 pdf', suggesting a lure to disguise the malicious intent. The primary malicious URL identified is https://ttraff.com/wb?keyword=b.ed%20syllabus%202019-20%20pdf, which likely leads to further malicious 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.com/wb?keyword=b.ed%20syllabus%202019-20%20pdf
    • http://files.sass-and-crafts.com/uploads/1/3/0/8/130815213/puwakujojavulazamad.pdf
    • http://files.climatechheatingcooling.com/uploads/1/3/1/3/131398423/c3fec48.pdf
    • http://files.lonsdale-estate.co.uk/uploads/1/3/1/4/131437770/7476893.pdf
    • http://files.eastbrooklynhousing.com/uploads/1/3/2/6/132696323/bd315056bd9dd37.pdf
    • https://cdn.shopify.com/s/files/1/0428/9452/4579/files/vutisojomuz.pdf
    • https://cdn.shopify.com/s/files/1/0431/4519/9784/files/wozufisewikenexowatupevu.pdf
    • https://cdn.shopify.com/s/files/1/0428/1637/2892/files/amplified_bible_2020.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/63912397784.pdf
    • https://cdn.shopify.com/s/files/1/0432/3000/3358/files/nepow.pdf
    • https://cdn.shopify.com/s/files/1/0432/2259/7800/files/bilusowep.pdf
    • https://cdn.shopify.com/s/files/1/0431/1724/8672/files/lagobebewaborovivoku.pdf
    • https://cdn.shopify.com/s/files/1/0437/6385/9610/files/74620737074.pdf
    • https://cdn.shopify.com/s/files/1/0434/8251/3561/files/english_alphabet_worksheet_for_kindergarten.pdf
    • https://cdn.shopify.com/s/files/1/0428/4035/9068/files/xikewizunotu.pdf
    • https://cdn.shopify.com/s/files/1/0429/6795/7658/files/44506069042.pdf
    • https://cdn.shopify.com/s/files/1/0427/4572/5094/files/53244247917.pdf
    • https://cdn.shopify.com/s/files/1/0428/7198/0198/files/knapsack_dynamic_programming.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_off00006dfb.bin
8881448fa43af4d7bc23b887c1ce0d1a3ede8d192ba01fc1ff8196311fca4733		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DFB 5312 bytes
font_01_sfnt_off00008025.bin
2d302a408b8360cebe8c30f920b073654e1218e87d457079633c35250bcff28d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8025 14096 bytes
font_02_sfnt_off0000abee.bin
0be84d2d0547f1f02aa0071b49020aaa73ac7e6a4c4dee27a4da8627c6f2d0ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0xABEE 16092 bytes
font_03_sfnt_off0000c0b3.bin
8405bb6ca9a6fb718a2e910e1cdde4d74ac2122cab0061dc5f772322db9c7ccd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC0B3 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.