Malicious PDF — malware analysis report

Static analysis result for SHA-256 c14fd0a80e381c89…

MALICIOUS

PDF

81.2 KB Created: 2021-02-16 20:45:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3e999d1c6b8ad0738732df50aa4a16c1 SHA-1: 597606579bdb22e194d39a10d77f7d515089d8dd SHA-256: c14fd0a80e381c89640b2ffc7d61fe0e09460e167430473332d0bf8b0e1b137f
156 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, with a critical heuristic firing for a large external PDF link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://druttle.ru/wix?keyword=hollywood+dual+audio+hd+movies+from+moviemad
    • http://1eyvgo.xyz/wiwawugukiwopofhhstw.pdf
    • https://cdn.sqhk.co/jaguwubax/9ha8I0S/16173333414.pdf
    • https://static.s123-cdn-static.com/uploads/4483104/normal_5ffece5b5881a.pdf
    • https://static.s123-cdn-static.com/uploads/4477409/normal_5fce2c3a87eaf.pdf
    • http://evilcheats.fun/chippewa_lake_mn_fishing_reportocn1n.pdf
    • https://static.s123-cdn-static.com/uploads/4476601/normal_5febc34f26624.pdf
    • http://nout-prokat.website/vimoxodisatorijhuu0x.pdf
    • https://cdn.sqhk.co/tovipovo/jeibdgd/flickr_photos_free_to_use.pdf
    • http://goodsun.space/how_do_i_change_the_lightbulb_in_my_kitchenaid_microwavenbk57.pdf
    • https://cdn.sqhk.co/mapetidul/IGhiifc/food_wars_anime_season_3_episode_1.pdf
    • https://cdn.sqhk.co/numokafas/ibhdkjh/colors_of_the_rainbow_lyrics_sevenn.pdf
    • https://bupafenanibud.weebly.com/uploads/1/3/4/0/134042845/4520988.pdf
    • http://dontbeshy.xyz/teorias_de_la_personalidad15rtl.pdf
    • http://qqkaxes.xyz/88822383691l0r16.pdf
    • https://cdn-cms.f-static.net/uploads/4451945/normal_5fd64cd2a6dc9.pdf
    • https://static.s123-cdn-static.com/uploads/4450516/normal_5ff3276c45b27.pdf
    • http://shoop-fr.ru/zuruxejakuzobadotekomrkqc6.pdf
    • http://metalllift.ru/13531689276hya6.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f34b.bin
c38e44a4b133651d7e1cf0c3c149b64b823f0a355cf62a33c0da3e9efc5410cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF34B 5060 bytes
font_01_sfnt_off00010490.bin
a3dfef6c969ee1b309643fe49fec44b0cd3224d25787e4077cf2b1eccaaa7ea1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10490 10720 bytes
font_02_sfnt_off00012927.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12927 4324 bytes

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