Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff0a45ee7d24865e…

MALICIOUS

PDF

39.5 KB Created: 2020-07-09 12:01:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 17cea17127b0beda319fdd3453b01b89 SHA-1: d5de744310d0b1ef348ee28cb4309cbc6664c028 SHA-256: ff0a45ee7d24865ea2275adb54ced77ab9f5f160d442ddf4bdae745757a0854a
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, identified as a link farm. One critical heuristic indicates these links point to known malicious redirector infrastructure. The primary malicious link identified is https://ttraff.com/pify?keyword=lyman+cast+bullet+handbook+4th+editi. The document body also contains numerous other PDF links, suggesting a tactic to manipulate search engine results or distribute further malicious content.

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.com/pify?keyword=lyman+cast+bullet+handbook+4th+editi
    • http://files.greensidepublishing.com/uploads/1/3/1/3/131379663/1218709.pdf
    • http://files.vantillylace.com/uploads/1/3/1/4/131453036/1578996b.pdf
    • http://files.artwalkstalbert.com/uploads/1/3/0/9/130969938/weburakoled_bukigojida_woput.pdf
    • http://files.mentalhiccups.com/uploads/1/3/0/9/130969572/gagiju.pdf
    • http://files.kiwihobbies.com/uploads/1/3/2/8/132816066/namigivipofuga.pdf
    • http://files.hawaiineiartcontest.org/uploads/1/3/0/9/130969386/fatiw.pdf
    • http://files.capricecrawford.com/uploads/1/3/0/7/130776776/e85cf84bf10ea.pdf
    • http://files.ias-as.org/uploads/1/3/1/8/131858287/2756411.pdf
    • https://texiduga.files.wordpress.com/2020/07/94260836939.pdf
    • https://xidifuzu.files.wordpress.com/2020/07/jinevebofuzutexigozonuv.pdf
    • https://sagakav.files.wordpress.com/2020/07/vogugalupotebofaninamu.pdf
    • https://julaxotetelu73207895.files.wordpress.com/2020/07/tanasixumudowurukijukijis.pdf
    • https://jusumuvaroz306804261.files.wordpress.com/2020/06/sisetusugubalilal.pdf
    • https://fagisaboxat.files.wordpress.com/2020/06/19376301442.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ginowojero.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/58657968950.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xumilegimazuguvabunozanik.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/budazasinopuxa.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nudukesobiji.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_off00005d86.bin
bfb5e9ceb9f8acb9a57c4777d304325ac5e2a62338a898c3141b605489bf823a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D86 5300 bytes
font_01_sfnt_off00006f5f.bin
a9a71b1b15f09301d372cd63ee1c0cc25de159d487e8bcfea03231ae224ac1dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F5F 9740 bytes

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