Malicious PDF — malware analysis report

Static analysis result for SHA-256 85172472c3d3263f…

MALICIOUS

PDF

84.5 KB Created: 2021-03-27 15:05:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62eb83889cfda186b9bee1be660fd969 SHA-1: 61ef7d2359c8817de6e8baf5b5b0949af5aea17c SHA-256: 85172472c3d3263f9cdffcad52631ea4e9dda3d749ff4890e257189fdd9bc6dd
154 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which are SEO-optimized and point to potentially malicious domains, suggesting a link farm or phishing lure. The ClamAV detection and ML classifier further indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest it's designed to redirect users to malicious content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7662

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.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://fokemale.ru/award?keyword=bsc+1st+year+physics+mechanics+book+pdf+download
    • https://pilopumif.weebly.com/uploads/1/3/4/7/134733378/tujujiwi-xobijomefipeto-sekopof-dedojoxexe.pdf
    • http://tradebot.space/louisiana_purchase_and_exploration_map_activity_answersmaejt.pdf
    • http://ita-talia.fun/dikexixevabuwi41tu7.pdf
    • http://zdsshop.top/punurinokay6nvx.pdf
    • http://gagipelujer.iblogger.org/pisezupevaluxuxozuvekot.pdf
    • https://lokudepapina.weebly.com/uploads/1/3/5/3/135325929/vidawir.pdf
    • http://silvanozito.online/deadlands_d20lpjti.pdf
    • https://ziripovamenof.weebly.com/uploads/1/3/4/6/134647136/bojedujapem.pdf
    • https://dawifebenunu.weebly.com/uploads/1/3/4/3/134374742/3d0b95ab.pdf
    • https://cdn.sqhk.co/lelabepena/icghLDe/31411975380.pdf
    • https://kapokifi.weebly.com/uploads/1/3/4/5/134510442/245859.pdf
    • https://cdn.sqhk.co/voxedifi/ejeHWif/bundesliga_top_goalscorer_2019_20_season.pdf
    • http://wefabawatewe.22web.org/jaxulusovojurew.pdf
    • https://digeforoxega.weebly.com/uploads/1/3/4/6/134668277/dufaba_favepefafera.pdf
    • https://cdn.sqhk.co/xewafazuk/z0jhDha/mods_for_minecraft_pe_1._12._0.pdf
    • https://latavulepa.weebly.com/uploads/1/3/4/4/134461708/vizodujexonaso.pdf
    • https://zumikifekov.weebly.com/uploads/1/3/0/8/130813997/9526987.pdf
    • https://xefapakofaguwa.weebly.com/uploads/1/3/1/1/131164324/xolebuber.pdf
    • https://cdn.sqhk.co/korebuxaguz/hbhjhJy/save_the_light_walkthrough.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://subedawulowuwo.epizy.com/daratumumab_bortezomib_and_dexamethasone_for_multiple_myeloma.pdf
    • http://nofixuzupebo.epizy.com/36342905825.pdf
    • https://uploads.strikinglycdn.com/files/9223e4b1-68ae-49f7-8a6d-e50d25c95fce/jalosenito.pdf
    • https://uploads.strikinglycdn.com/files/1053f6f0-e2d0-4ab8-abf8-4819edbde2fe/why_is_my_pressure_washer_pulsating.pdf
    • https://uploads.strikinglycdn.com/files/cf719204-7ad7-4e55-b0dd-b3ea0864c7e5/tesebepodonuvow.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011744.bin
75b10aee2a937235936b47bd40fc44806847c7e369a7ef09cef6f6023d14272a
pdf-font-stream PDF embedded font (sfnt) at offset 0x11744 5892 bytes
font_01_sfnt_off00012b47.bin
b7e475e29879a6f7b77b8b61ce9f3f4a88770e69d573f1a32d9f673855943c13
pdf-font-stream PDF embedded font (sfnt) at offset 0x12B47 11768 bytes