Malicious PDF — malware analysis report

Static analysis result for SHA-256 04ca04072948119a…

MALICIOUS

PDF

48.7 KB Authoring application: Mobipocket Creator
MD5: 980ab799af900b51eaae7486186d4a5f SHA-1: 635de57952001e4bd7cf1a8d4e4fe15941d8a78c SHA-256: 04ca04072948119a60b19e58a885385a6e7630acb531f18f6fd728bde7f26b00
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external PDF files, many of which appear to be algorithmically generated, suggesting a link farm or phishing campaign. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. The embedded URLs are the primary indicators of compromise, directing users to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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 http://www.viceversafashions.com/uploads/1/3/0/7/130776054/dosejevomevowe.pdf
    • http://beautesache.org/uploads/1/3/0/8/130874001/zugototixir-ditotagolexavi.pdf
    • http://yournaturallybrightpatiocovers.com/uploads/1/3/0/7/130775201/7060805.pdf
    • http://kinderchat.net/uploads/1/3/0/3/130313235/fikonitu-luvosimodam.pdf
    • http://gtbcf.org/uploads/1/3/0/8/130814576/8267978.pdf
    • http://milwaukeesfavoritedj.com/uploads/1/3/0/6/130620612/7187597.pdf
    • http://makahisland.com/uploads/1/3/0/6/130605432/xebom.pdf
    • http://jinbaobogunqiu.br3h.com/uploads/1/3/0/6/130605492/6785101.pdf
    • http://darthski.com/uploads/1/3/0/5/130589166/292364.pdf
    • http://www.88mphofficial.com/uploads/1/3/0/6/130621294/narixujune_remidezemuke.pdf
    • http://moanalipopo.com/uploads/1/3/0/7/130775014/zuxolika.pdf
    • http://middleschoollessons.com/uploads/1/3/0/7/130775762/ae5cabbc24d8ff7.pdf
    • http://namastamyoga.com/uploads/1/3/0/4/130488543/f7912.pdf
    • http://joyfulnoise.info/uploads/1/3/0/5/130539912/bejaran_misaz_xenusi.pdf
    • http://niyahj.com/uploads/1/3/0/5/130542912/6495461.pdf
    • http://obsync.com/uploads/1/3/0/7/130776368/32d52.pdf
    • http://realtimecases.net/uploads/1/3/0/5/130551618/9891517.pdf
    • http://brawlinfo.com/uploads/1/3/0/5/130540493/zekowi_kigur.pdf
    • http://bramvanroyphotography.com/uploads/1/3/0/6/130639513/sevinekebogi.pdf
    • http://dappermaximusdesigns.com/uploads/1/3/0/6/130620379/8cda23c24ca1.pdf
    • http://trinityenergycenter.com/uploads/1/3/0/6/130620798/toxiliv-wukobukinoje-diwutuzogeje.pdf
    • http://blackbeardmarketing.com/uploads/1/3/0/4/130490151/26c7f.pdf
    • http://refuelledbybbfcafe.com/uploads/1/3/0/7/130739928/28d939566bf238.pdf
    • http://warwickcarriagedriving.com/uploads/1/3/0/5/130542831/jefemukaxapiwo.pdf
    • http://ddeventsinternational.gammaxiques.org/uploads/1/3/0/5/130539097/130539097.html#sejarah+perkembangan+akuntansi+internasional+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010f0.bin
d20f2ab3a5c360cd62cb0a8c302400a6e3c4e64ee1bec5f34b982ba1c713c9c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10F0 7440 bytes

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