Malicious PDF — malware analysis report

Static analysis result for SHA-256 e64654d900a2a7f8…

MALICIOUS

PDF

47.7 KB Authoring application: Nitro PDF
MD5: f62131a089bc8bf563f030cf750dcc9a SHA-1: 96fe99552b4feb40b4c3ae0567e381c1c91846df SHA-256: e64654d900a2a7f84db5c3f0b8d3e16ddc28ba8c37fbc216e2224e5f739d2c58
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of external links to other PDF files hosted on various domains, indicating a link farm or redirection strategy. ClamAV identified this as 'Pdf.Phishing.TtraffRobotInstall-7605656-0', and a machine learning model assigned a high probability of maliciousness. The document body contains garbled text and references to 'Ayatul kursi with urdu translation mp3 free download hamariweb', which appears to be a lure to disguise the malicious link distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 3

  • 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
  • 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://moses-michael.com/uploads/1/3/0/3/130323324/zefovokagux.pdf
    • http://ironwilltrain.com/uploads/1/3/0/7/130739490/6755645.pdf
    • http://homesteaddevelopmentpartners.com/uploads/1/3/0/6/130621890/7891693.pdf
    • http://directors-collective-international.com/uploads/1/3/0/5/130543685/rusabegu.pdf
    • http://bet365weifa.br3h.com/uploads/1/3/0/2/130271087/vemogadunapuse.pdf
    • http://meridian-dcg.com/uploads/1/3/0/5/130588295/dbb61d9.pdf
    • http://neo-water.net/uploads/1/3/0/2/130287930/83967a.pdf
    • http://mailserver.academiadeballetallegro.com/uploads/1/3/0/7/130774972/jusojuga.pdf
    • http://joy-coach.com/uploads/1/3/0/6/130621462/mujanujore.pdf
    • http://hostmaster.trudycoylecrafts.uk/uploads/1/3/0/4/130435722/7887905.pdf
    • http://suzanneandjustinforever.com/uploads/1/3/0/6/130620423/8877049.pdf
    • http://queenannecondoliving.com/uploads/1/3/0/7/130775016/6610408.pdf
    • http://btrdwgqjcwb2.chelseafrance.com/uploads/1/3/0/3/130323206/fobofejasezeme.pdf
    • http://caveofchaos.com/uploads/1/3/0/6/130621100/5918592.pdf
    • http://varanese.mobi/uploads/1/3/0/3/130323997/wilevoz_fajuwibadorowa_gimopuxidi_wolejemujunumot.pdf
    • http://www.kittyspsychicinsight.com/uploads/1/3/0/6/130604539/roramosuro.pdf
    • http://sng1product.world/uploads/1/3/0/2/130287456/napex.pdf
    • http://bedonetmarmaille.com/uploads/1/3/0/6/130603985/xokivozimoxibafelip.pdf
    • http://bettysmusic.com/uploads/1/3/0/3/130323106/8064642.pdf
    • http://mymmtx.com/uploads/1/3/0/2/130272856/3631611.pdf
    • http://scholarlyrepository.net/uploads/1/3/0/6/130604207/c5615.pdf
    • http://linkerconsultinggroup.com/uploads/1/3/0/5/130539204/a91f1b5.pdf
    • http://sparkerisland.com/uploads/1/3/0/5/130551654/vefadedamewidode.pdf
    • http://biz2vacontracts.govcontracting.org/uploads/1/3/0/7/130738738/piwomezeda.pdf
    • http://74-123-75-176.mgwnet.com/uploads/1/3/0/5/130588649/130588649.html#ayatul+kursi+with+urdu+translation+mp3+free+download+hamariweb

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003ac7.bin
d648fb9e1a17861785b64f468df9592b6231652a55bff4753623eb697a909c0d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3AC7 17300 bytes
font_01_sfnt_off000056c0.bin
e0a6e59ae479f7095a934aba659d030e101a051e92c0bf043234a3b354369897		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56C0 8168 bytes

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