Malicious PDF — malware analysis report

Static analysis result for SHA-256 10afa6c5de63741a…

MALICIOUS

PDF

75.5 KB Created: 2021-03-25 15:06:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ae668bcb957cdc1437f8839249746581 SHA-1: 5c68a15c6ad515c88436cd1287f83ba8006c164f SHA-256: 10afa6c5de63741aefdda9e151bac43ecc2ef1fa393f88c830ba6622f85bd850
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URL pointing to 'xezojetit.ru', which is likely used to deliver a malicious payload or conduct phishing. The document body, though heavily obfuscated, suggests a lure related to 'cal state long beach map pdf', indicating a social engineering attempt to trick the user into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • 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://xezojetit.ru/award?keyword=cal+state+long+beach+map+pdf
    • http://gijipodotetojo.22web.org/advanced_excel_2013.pdf
    • http://nasporte1.fun/28566493350qszjf.pdf
    • https://bupimapigi.weebly.com/uploads/1/3/1/3/131383283/sirexirivi.pdf
    • https://cdn.sqhk.co/notokulojow/inH4bia/pabevikawo.pdf
    • https://cdn.sqhk.co/doxelatofon/jfgiSrA/4th_grade_learning_games_free.pdf
    • https://vakenufepuxino.weebly.com/uploads/1/3/4/5/134529081/2115210.pdf
    • https://jubagimijan.weebly.com/uploads/1/3/5/3/135333733/lonipiputes.pdf
    • https://rinadulig.weebly.com/uploads/1/3/0/7/130739308/8293223.pdf
    • https://cdn.sqhk.co/belumozobu/Qghzje5/fogezowimemetizuliruseval.pdf
    • https://cdn.sqhk.co/letowajaf/tghhghb/67424733291.pdf
    • https://zujuwaxi.weebly.com/uploads/1/3/5/3/135307850/sojowexigopiw_nawizevelaj_kufoxefezolom_wuzevagufejate.pdf
    • https://cdn.sqhk.co/berirenike/hijcXjf/37514860184.pdf
    • http://nasty666.space/penuse90uvc.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://kobizesamow.rf.gd/18989117679.pdf
    • http://mesujexu.rf.gd/69746400487.pdf
    • http://wakefij.epizy.com/bsnl_tariff_plans_up_east.pdf
    • https://d190c387-1498-4382-a59e-98d1a0a9794c.filesusr.com/ugd/a91264_0e589954431f4bccb17d0e4b47515fa3.pdf?index=true
    • http://tikimolanevi.rf.gd/39245995357.pdf
    • https://f8071fb1-33dc-4bb9-9fe9-292e0ca0d861.filesusr.com/ugd/253000_c4c44645c36d4f7f9c339758a9863b68.pdf?index=true
    • http://vijanemafe.rf.gd/2365737037.pdf
    • http://lezenexujurab.epizy.com/arris_tm1602a_vs_tm1602g.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e6e0.bin
c081a052ba611589beeb0e77d18ebb31be339c32ea225e931511b67d13b5c1d1
pdf-font-stream PDF embedded font (sfnt) at offset 0xE6E0 5520 bytes
font_01_sfnt_off0000f97a.bin
29747315a4056f2b651a069eeb571124bd11de5113fd4767d0090a067bbcff12
pdf-font-stream PDF embedded font (sfnt) at offset 0xF97A 11496 bytes