Malicious PDF — malware analysis report

Static analysis result for SHA-256 0549fe2ecc7a1067…

MALICIOUS

PDF

41.3 KB Created: 2020-08-07 02:26:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 35d3250c10451204b7b424ccefcbb48e SHA-1: 355f3da381e1c675155d8abca513120a307163b7 SHA-256: 0549fe2ecc7a106739fe3c9f0dc6f0e6fbf3186800aed288987f4a7b1a55dc03
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, including one to a known malicious redirector, disguised as a book download. This suggests a phishing or content-luring attempt, likely to deliver further malware or lead to a compromised site. The ML classifier also strongly indicated maliciousness.

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=refugee+alan+gratz+pdf+download
    • http://files.devizestaxis.co.uk/uploads/1/3/0/9/130969469/9009082.pdf
    • http://files.yourpanamatours.com/uploads/1/3/1/4/131412032/6386831c5f8492.pdf
    • http://files.y4kc.org/uploads/1/3/2/7/132740804/muginil.pdf
    • http://tuzojeli.assurancedepot.net/uploads/1/3/0/8/130874422/e10841d26c.pdf
    • http://bupemoke.mwpto.org/uploads/1/3/0/7/130776433/996947.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/64238793182.pdf
    • https://cdn.shopify.com/s/files/1/0440/3901/2502/files/mosidusi.pdf
    • https://cdn.shopify.com/s/files/1/0447/9765/7248/files/ffmpeg_convert_mp4_to_mp3.pdf
    • https://cdn.shopify.com/s/files/1/0434/0845/7877/files/75784020047.pdf
    • https://cdn.shopify.com/s/files/1/0429/2801/3471/files/orthographic_projection_in_autocad.pdf
    • https://cdn.shopify.com/s/files/1/0440/9422/6584/files/noduzowalasimidid.pdf
    • https://cdn.shopify.com/s/files/1/0433/0972/7912/files/subset_dataframe_in_r.pdf
    • https://cdn.shopify.com/s/files/1/0432/2259/7800/files/maxemefebegisatujanudiwi.pdf
    • https://cdn.shopify.com/s/files/1/0434/9001/7430/files/54946969023.pdf
    • https://cdn.shopify.com/s/files/1/0434/8634/7430/files/best_ereader_for.pdf
    • https://cdn.shopify.com/s/files/1/0427/4946/0636/files/dujuronakabisifuvetaporu.pdf
    • https://cdn.shopify.com/s/files/1/0428/4317/7126/files/33898910347.pdf
    • https://cdn.shopify.com/s/files/1/0432/8125/2507/files/22179149649.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_off00006153.bin
9fdcbf2ab198372706d121efdea3fb2039b651b3762fa977dd46934ec79f256f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6153 5180 bytes
font_01_sfnt_off0000732a.bin
827e9288495e5de7e82e938ae39a5435d7419f05ebcb6c35ada28c7a8df91864		 pdf-font-stream PDF embedded font (sfnt) at offset 0x732A 10552 bytes

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