Malicious PDF — malware analysis report

Static analysis result for SHA-256 503718c65657bfc6…

MALICIOUS

PDF

70.8 KB Authoring application: SWFTools
MD5: 523908a92616ae4902161032d5333708 SHA-1: 281a704ff9302d88a4c806fb16e8e1043caf97a7 SHA-256: 503718c65657bfc6f822f00e07ff77de9d4a1480126dccb64e0715f770f4da29
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to external PDF documents hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content, as suggested by the 'PDF_SEO_LINK_FARM' heuristic and ClamAV detection. The embedded URLs are the primary IOCs, suggesting a phishing or SEO-based attack pattern.

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://mid-americathermalimaging.com/uploads/1/3/0/4/130488196/wukasidifoxum.pdf
    • http://unhappycamperstudios.com/uploads/1/3/0/5/130590507/2283619.pdf
    • http://nubianliteweightlossprograms.com/uploads/1/3/0/4/130483110/komibagukokipe-rakalepok-kuwopasavod.pdf
    • http://winorlosesportsconference.com/uploads/1/3/0/5/130588220/7977356.pdf
    • http://assessmentsystemscorporation.com/uploads/1/3/0/7/130738628/f1fcfe86.pdf
    • http://vinyl61.net/uploads/1/3/0/5/130543261/jubifibo-luziz-sibukesotok-gorinage.pdf
    • http://bdmchallenge.com/uploads/1/3/0/6/130622047/molarurakitoga.pdf
    • http://themathbutler.com/uploads/1/3/0/5/130588206/fonekak.pdf
    • http://northbaygarageservice.com/uploads/1/3/0/2/130291507/benifomunera.pdf
    • http://thehnossaproject.com/uploads/1/3/0/6/130621000/130621000.html#right+shift+of+the+oxyhemoglobin+dissociation+curve+in+acute+respiratory+distress+syndrome

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000163c.bin
8e136420c23da6df3ae752926c95def3c32f658d2be54fcedc852e3bc8149696		 pdf-font-stream PDF embedded font (sfnt) at offset 0x163C 9548 bytes
font_01_sfnt_off0000da9f.bin
68d729543020285b14d44b3748c7b0c02461bfc9c5dbee822b219458c41cd6f5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDA9F 3112 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.