Malicious PDF — malware analysis report

Static analysis result for SHA-256 22ac0f3ebef8b392…

MALICIOUS

PDF

49.0 KB Authoring application: QPDF
MD5: c3ca3b3be0b8b423c638b58af6711273 SHA-1: 869b9f4ee81251591824e4ae722f8c648729dd89 SHA-256: 22ac0f3ebef8b3928fca170d0f05b24ed0779fdd11560112c7e8d1bcf3fbf518
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF contains a large number of external links, many of which point to other PDF files, indicating a link farm or redirection mechanism. The ClamAV detection and ML classifier strongly suggest malicious intent. The document body, though partially corrupted, references 'The 33 strategies of the war pdf' and includes URLs that are likely part of a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://andreanelsonart.com/uploads/1/3/0/5/130588962/9cfb3457.pdf
    • http://farmdalehawks.org/uploads/1/3/0/5/130544954/5182768.pdf
    • http://pebekukip.swealth.net/uploads/2020/01/28/e3f91879a.pdf
    • https://bugogelutekuze.weebly.com/uploads/1/3/0/3/130323547/kisozujebigi.pdf
    • http://oleg-vytkin.ru/uploads/2020/01/27/roxuzavudanet.pdf
    • https://videbuju.weebly.com/uploads/1/3/0/3/130323360/1927436.pdf
    • http://mugedatid.yeguadadosvaqueros.com/uploads/2020/01/28/fodaja.pdf
    • https://gogorigurefora.weebly.com/uploads/1/3/0/4/130483953/3036240.pdf
    • http://tiluka.vetriks.com/uploads/2020/01/28/b42af4dcf49d86.pdf
    • http://buxoxuxak.remont-turbin-orenburg.ru/uploads/2020/01/28/3133838.pdf
    • http://linlinyang.com/uploads/1/3/0/2/130288419/fizowob.pdf
    • https://vuxuvarena.weebly.com/uploads/1/3/0/3/130313504/susiwovatuz.pdf
    • http://eurekameasurei.com/uploads/1/3/0/2/130271090/cc8086ddf3ba7df.pdf
    • http://kabe.manipulyator116.ru/uploads/2020/01/28/6161382.pdf
    • http://gypsydenisse.com/uploads/1/3/0/2/130287957/0e862a.pdf
    • http://patujepofa.rektes.tech/uploads/2020/01/28/vapugototokozigam.pdf
    • http://zevazulaz.zayms.icu/uploads/2020/01/28/911b03.pdf
    • http://chengsin-caf.com/uploads/1/3/0/5/130545189/pomev_bosowop_bosuxize_momitotowopepe.pdf
    • http://guvedirix.vodka-fenix.com/uploads/2020/01/29/9465110.pdf
    • https://damagemawi.weebly.com/uploads/1/3/0/3/130379114/bowivitikobabelu.pdf
    • http://lovefoundationproject.com/uploads/1/3/0/2/130272372/4c1c02ea.pdf
    • http://pixibejuna.kattyb.online/uploads/2020/01/28/jakipovazus_duxukisidiz.pdf
    • http://vuza.agicole-acces.com/uploads/2020/01/27/xekezuzikolita.pdf
    • http://millhouseconsultants.com/uploads/1/3/0/6/130603931/punubox-terenojuk-vepuxosol.pdf
    • http://bennyjmusic.com/uploads/1/3/0/4/130476045/130476045.html#las+33+estrategias+de+la+guerra+pdf
    • https://damagemawi.weebly.c

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001a33.bin
755b782cd90314fc0e355a230f6674532d2cefdb758ab7143387b7aebefd41e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1A33 9888 bytes

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