Malicious PDF — malware analysis report

Static analysis result for SHA-256 be886181c910e1ac…

MALICIOUS

PDF

51.7 KB Authoring application: GIMP
MD5: 5e6656a25a76dca03865989ab10c490e SHA-1: a97df19bb50fb39e89e979150d432106be8840ab SHA-256: be886181c910e1ac487949420b4517a9fd4fb4ba73a2600ddd0685c7b2522ac2
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF files, a technique often used for SEO spam or to redirect users to phishing or malware sites. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. The embedded URLs are likely part of this redirection scheme.

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://activeaidpartnerships.org/uploads/1/3/0/5/130544118/kojuribijawuba_fidopemikuxi_gatedewofa_fodudanoluwo.pdf
    • http://darkskyislands.net/uploads/1/3/0/5/130589168/ruludusiro_kujen_guviwan.pdf
    • http://transformationspersonaltraining.com/uploads/1/3/0/6/130620951/c5f5bceb.pdf
    • http://niacurriculum.com/uploads/1/3/0/5/130588899/sisizano.pdf
    • http://dodoj.agm39.icu/uploads/2020/01/29/4009531.pdf
    • http://dallasclinicalpsychology.com/uploads/1/3/0/5/130543305/4877534.pdf
    • http://nihaoskiescalls.com/uploads/1/3/0/3/130313215/tufarapiduse.pdf
    • http://salsmantour.org/uploads/1/3/0/6/130621814/7687581.pdf
    • http://lucasgarron.net/uploads/1/3/0/5/130544067/zojomamelovabox-tozir-dininibiles.pdf
    • http://boldncreative.com/uploads/1/3/0/6/130639382/7671147.pdf
    • http://nupelicanparty.org/uploads/1/3/0/5/130551477/130551477.html#maths+made+easy+circle+theorems+answers

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000013d6.bin
01541754cdfa3d2cf1cd2f140e6830e5e98b32c13b6fef84c6137394a83ec2a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13D6 9688 bytes

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