Malicious PDF — malware analysis report

Static analysis result for SHA-256 520de0701aa8a4d6…

MALICIOUS

PDF

37.8 KB Authoring application: QPDF
MD5: 24aa4612c05b64302061a8871736ed8b SHA-1: a224910d9666673dfc7a1662a3ae4f24ed371f35 SHA-256: 520de0701aa8a4d6a06aef729eb8775f31fd70eba3f04caa0743d9fe50a1da68
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of external links, a technique often used for SEO manipulation or to direct users to malicious sites. The ClamAV detection and heuristic firings indicate this is a phishing-related PDF. The document body also contains the primary malicious URL, which is likely intended to lead the user to a further malicious resource.

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
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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://luzi.reshenie-krasnogorsk.ru/uploads/2020/01/28/3e5a0b12.pdf
    • https://wevesifedi.weebly.com/uploads/1/3/0/4/130483981/916700.pdf
    • http://dcepool.org/uploads/1/3/0/5/130589293/duzebasa_podomusos_bekaxoveper_nimobezuloz.pdf
    • http://barcorealtyofaquia.com/uploads/1/3/0/3/130323571/vipikeviwenu-rumeteru-dexarub-pememo.pdf
    • http://deafperutour.com/uploads/1/3/0/6/130604433/sefibezegixekelube.pdf
    • http://ctanujit.com/uploads/1/3/0/5/130543038/9503025.pdf
    • http://diegobarrenechea.art/uploads/1/3/0/4/130479008/wumesuwimu_pisuwazulakil.pdf
    • http://mosaicolearning.com/uploads/1/3/0/3/130379231/bikewojaxosoberege.pdf
    • http://mysteryshoppingonlinejob.com/uploads/1/3/0/5/130551746/7155496.pdf
    • http://dealswithdessy.com/uploads/1/3/0/4/130483207/mogafefotemudu_nogum_fodakofalifa_kuxepipusesoxit.pdf
    • http://newbernapp.com/uploads/1/3/0/5/130544226/4580875.pdf
    • http://moisescastro.com/uploads/1/3/0/7/130776169/130776169.html#post+office+building+plan+drawing+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001345.bin
f7dca40ac69844ef8a57189a1365c2081138c5865c6a9065186d24a77a7d850a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1345 8284 bytes

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