Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1a5e7a400b5173a…

MALICIOUS

PDF

50.4 KB Created: 2020-08-09 03:36:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b13ea3b0af46e5b02e49e8020d44e3e SHA-1: 06cd020b3abe3878b6e1e3b74da865aeb1172d67 SHA-256: e1a5e7a400b5173a4088429076681e6a121241afc08d558c8401476aa6816b6b
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one heuristic identifying it as a PDF link farm. The primary malicious link, 'https://ttraff.cc/pify?keyword=rubrik+penilaian+reading+aloud+pdf', suggests a redirection to potentially harmful content. The presence of numerous links, many hosted on Shopify, indicates a strategy to either inflate SEO or distribute malicious payloads through a seemingly benign document. No scripts were extracted, limiting the analysis of direct execution behavior.

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=rubrik+penilaian+reading+aloud+pdf
    • http://mowuzebum.bahamasteachercadets.com/uploads/1/3/1/0/131070450/fakexivumifedel.pdf
    • http://files.jciitaly.org/uploads/1/3/1/4/131438639/kenizujume.pdf
    • http://files.fabianwahl.de/uploads/1/3/2/6/132682022/56d157cbd2ff4c.pdf
    • http://files.petesmentalhealthtravel.com/uploads/1/3/0/7/130776728/06d4fa357039288.pdf
    • http://files.20thgmb.com/uploads/1/3/1/4/131406403/bibitedelase-golug-topovo-disubil.pdf
    • https://cdn.shopify.com/s/files/1/0436/1755/0499/files/wazefoval.pdf
    • https://cdn.shopify.com/s/files/1/0437/4629/5959/files/electromagnetic_fields_wangsness_solution_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/2537/5130/files/hosts_file_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/galuta.pdf
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/61135032874.pdf
    • https://cdn.shopify.com/s/files/1/0431/1583/9645/files/51119593610.pdf
    • https://cdn.shopify.com/s/files/1/0445/6490/6148/files/alchemists_board_game.pdf
    • https://cdn.shopify.com/s/files/1/0432/6929/2188/files/seus_minecraft_shaders.pdf
    • https://cdn.shopify.com/s/files/1/0428/8453/0343/files/tigonufupojixiwisivoke.pdf
    • https://cdn.shopify.com/s/files/1/0431/0574/7108/files/99003696979.pdf
    • https://cdn.shopify.com/s/files/1/0434/1560/1314/files/secret_service_agent_salary.pdf
    • https://cdn.shopify.com/s/files/1/0430/1760/1181/files/8763637694.pdf
    • https://cdn.shopify.com/s/files/1/0434/3863/7208/files/eminem_space_bound_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0441/4029/8392/files/sd_tv_resolution.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000087c1.bin
c276ffb81be1a638780f261c1577cbe57722a22c30e269aa626b0015789145ee
pdf-font-stream PDF embedded font (sfnt) at offset 0x87C1 5240 bytes
font_01_sfnt_off000099aa.bin
9e1e965020fedd6d53e2d6d826b79ba9f9f690623ec687d02ccdf927538e21d8
pdf-font-stream PDF embedded font (sfnt) at offset 0x99AA 10220 bytes