Malicious PDF — malware analysis report

Static analysis result for SHA-256 1484d6828f2ce17f…

MALICIOUS

PDF

49.9 KB Created: 2020-08-01 11:36:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 200f0e775f694d55eb5ef435f7abfd7d SHA-1: 4e94909738b51291a11d77e47cc6a1b3a23b814d SHA-256: 1484d6828f2ce17f1d1c59e5740bbb0be6c584f70601708979d8b23b2f76ca61
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL, 'https://ttraff.cc/pify?keyword=host+window+7', is identified as a redirector. The document body, though heavily obfuscated, contains references to URLs and appears to be part of a link farm strategy, likely intended to drive traffic to malicious sites or distribute further payloads. No scripts were extracted, but the presence of embedded URLs and the redirector heuristic strongly suggest a phishing or malware distribution attempt.

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.cc/pify?keyword=host+window+7
    • http://files.modernhistoryseminars.com/uploads/1/3/0/7/130740624/68f69b674b9.pdf
    • http://files.christopherluscombe.com/uploads/1/3/0/9/130969775/zupakatox_berudetivuxar_keteporaxuvupin_jivagub.pdf
    • http://files.hireoptimize.com/uploads/1/3/1/4/131410662/rekekubidu-maguz-losuliwodowi.pdf
    • http://files.brucenwaller.com/uploads/1/3/0/8/130874240/4112316.pdf
    • http://files.jeffnickell.com/uploads/1/3/1/4/131406663/148596.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0429/2801/3475/files/81423236982.pdf
    • https://cdn.shopify.com/s/files/1/0431/6420/5216/files/24426353605.pdf
    • https://cdn.shopify.com/s/files/1/0431/8366/9412/files/naridu.pdf
    • https://cdn.shopify.com/s/files/1/0428/6346/0508/files/39758100345.pdf
    • https://cdn.shopify.com/s/files/1/0434/5066/3062/files/wekoguxavesakas.pdf
    • https://cdn.shopify.com/s/files/1/0430/1661/8145/files/wutetaguzojajawosupiti.pdf
    • https://cdn.shopify.com/s/files/1/0432/8449/6550/files/dizugufusufowabavavesuxar.pdf
    • https://cdn.shopify.com/s/files/1/0429/3849/9235/files/raputefigobagaz.pdf
    • https://cdn.shopify.com/s/files/1/0434/3165/7621/files/68300389489.pdf
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/66979870203.pdf
    • https://cdn.shopify.com/s/files/1/0432/6073/9752/files/kopex.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000087d2.bin
9c8fd8a1fa0e60aa64c94e33555174a49254814703bfe92aaf68055f9c3f6d8b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87D2 4616 bytes
font_01_sfnt_off000097b5.bin
8e74733ee85b80d2dfcd0bb868265254655c85ac65ca111314416ec95df6c6e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x97B5 10364 bytes

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