Malicious PDF — malware analysis report

Static analysis result for SHA-256 35b100bb805b17f3…

MALICIOUS

PDF

350.2 KB Created: 2020-08-03 17:33:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d3240007b77582938f98b52300d8907a SHA-1: 9ecec36d7477e0999a16ab43523fe2ed017ab19c SHA-256: 35b100bb805b17f37bb08bb0d7edf235fe52b159db3e829aa918c45f4508c43b
92 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The embedded URL 'https://ttraff.com/pify?keyword=allegiant+pdf+read+online' is directly associated with this malicious activity. The document body, though heavily obfuscated, also contains this URL, reinforcing its role as a lure. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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.
  • 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.com/pify?keyword=allegiant+pdf+read+online
    • http://files.ikargb.co.uk/uploads/1/3/1/4/131409170/c416f2d8c877.pdf
    • http://files.paintedlotusyoga.com/uploads/1/3/1/3/131398148/2612231.pdf
    • http://files.suicidalflower.com/uploads/1/3/0/7/130776042/407576.pdf
    • http://files.nomadicsteve.com/uploads/1/3/1/4/131437538/42cb4690f8.pdf
    • https://cdn.shopify.com/s/files/1/0428/5412/1635/files/zixatogeb.pdf
    • https://cdn.shopify.com/s/files/1/0433/5756/9176/files/89517708033.pdf
    • https://cdn.shopify.com/s/files/1/0432/1047/3633/files/8684993895.pdf
    • https://cdn.shopify.com/s/files/1/0427/7298/8071/files/98033250617.pdf
    • https://cdn.shopify.com/s/files/1/0441/4416/5016/files/isaiah_berlin_biografia.pdf
    • https://cdn.shopify.com/s/files/1/0430/7199/6053/files/vejazitanamuzakejujupebu.pdf
    • https://cdn.shopify.com/s/files/1/0433/3161/6923/files/binijebefinavebifivej.pdf
    • https://cdn.shopify.com/s/files/1/0441/0625/2440/files/rojuvesopiluruzexaguga.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/13002849425.pdf
    • https://cdn.shopify.com/s/files/1/0438/9103/2216/files/93859651252.pdf
    • https://cdn.shopify.com/s/files/1/0437/9590/6721/files/66636122531.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_off00053111.bin
f433e1104f3e2d063f0a8455a552375b44fcb20e99aaf97e4e50c3bc6d09ba2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53111 5020 bytes
font_01_sfnt_off00054238.bin
034a366aa1dea2200ae6228f3a0c11c48846051fccd6005c967dbafd0aa7ecba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54238 12256 bytes

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