Malicious PDF — malware analysis report

Static analysis result for SHA-256 c114436e89c07289…

MALICIOUS

PDF

36.0 KB Created: 2020-08-03 01:57:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3926f28ee4516f399fd36de73fc5aacf SHA-1: c95656edc9cd369e8f0d6cf1d0a151e4e40b5b4e SHA-256: c114436e89c07289fcb60478b27b900505e6a1e899ff45125439231f2336f603
152 Risk Score

Malware Insights

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

The PDF was flagged as malicious due to a critical heuristic identifying it as a redirector link to known malicious infrastructure. It also contains a large number of external PDF links, many hosted on cdn.shopify.com, forming a link farm. The primary malicious URL identified is https://ttraff.cc/pify?keyword=espn+wnba+scoreboard, which likely serves as a lure or initial stage for a phishing attack or malware download. No scripts were extracted, and the document body contained mostly obfuscated or binary data, with the malicious URL embedded within.

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=espn+wnba+scoreboard
    • http://files.mitchcom.com/uploads/1/3/2/6/132695543/3164940.pdf
    • http://kimajivo.milestonefoundation.net/uploads/1/3/2/7/132741555/5803979.pdf
    • http://files.woodeesri.com/uploads/1/3/1/8/131856584/jevewimaruzoweweremo.pdf
    • https://cdn.shopify.com/s/files/1/0432/8649/5400/files/bexatilamu.pdf
    • https://cdn.shopify.com/s/files/1/0433/4570/7166/files/binulabuwubab.pdf
    • https://cdn.shopify.com/s/files/1/0432/6447/5304/files/95303647089.pdf
    • https://cdn.shopify.com/s/files/1/0434/7897/4616/files/obsession_frankie_j._lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0431/8239/1451/files/53018405513.pdf
    • https://cdn.shopify.com/s/files/1/0431/1135/0439/files/14081766178.pdf
    • https://cdn.shopify.com/s/files/1/0428/3963/8179/files/lirojokofojitegugux.pdf
    • https://cdn.shopify.com/s/files/1/0437/5012/9813/files/ziworu.pdf
    • https://cdn.shopify.com/s/files/1/0429/1215/3766/files/26321194034.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/doragewotupepefe.pdf
    • https://cdn.shopify.com/s/files/1/0428/5405/6092/files/resume_templates_open_office.pdf
    • https://cdn.shopify.com/s/files/1/0429/2929/1427/files/rizeximodajazin.pdf
    • https://cdn.shopify.com/s/files/1/0431/8117/9048/files/badogujewinetupepeniziz.pdf
    • https://cdn.shopify.com/s/files/1/0430/9090/3193/files/28004817671.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000044ee.bin
483bf4f2880ccadd1763c902334a08a332d0c6eb1fc2292b034ad05a4bf9c9de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x44EE 4884 bytes
font_01_sfnt_off0000557e.bin
37fd610fde4d1b7769beea1898a6ac5e4245bfdb06e25473060ffed8d573cd9f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x557E 9400 bytes
font_02_sfnt_off00007551.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7551 4324 bytes

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