Malicious PDF — malware analysis report

Static analysis result for SHA-256 80f13db515f2a7a2…

MALICIOUS

PDF

47.9 KB Authoring application: LibreOffice
MD5: 0f75aa0b18f9ce9afe0d9ad54d46b497 SHA-1: acb23611f559d4e01082c0d836de7475178882b5 SHA-256: 80f13db515f2a7a2e5a4e75e5828221fb12eeb53e1ee47ae5084a17b6b23a2af
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection and ML classifier also indicate maliciousness, with ClamAV specifically flagging it as Pdf.Phishing.TtraffRobotInstall. The document body text is heavily corrupted, but the presence of numerous links suggests a phishing or SEO spam campaign. The primary intent appears to be directing users to a vast collection of external PDFs.

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://lt-wellness.com/uploads/1/3/0/6/130639143/bozetuvaxar.pdf
    • http://brownfencing.com/uploads/1/3/0/6/130604173/migedanowazap_fevovo_lowolewepugivaw_nezumererapo.pdf
    • http://britemoonmarketing.com/uploads/1/3/0/6/130620614/lagizisavovit_mazetagogedexo_pisesuga_nabudufipofe.pdf
    • https://jiwotapozaxira.weebly.com/uploads/1/3/0/3/130323106/mafabozaluri.pdf
    • http://duboda.btccn.pw/uploads/2020/01/28/232491.pdf
    • http://kehoetelematics.com/uploads/1/3/0/3/130379398/dawaji.pdf
    • http://populair-cyber.com/uploads/2020/01/27/17f8b523e767ce7.pdf
    • http://nealwendt.com/uploads/1/3/0/5/130589230/3761507.pdf
    • https://zoruwetukiv.weebly.com/uploads/1/3/0/4/130489038/8009986.pdf
    • http://lhfieldfamilyfdn.org/uploads/1/3/0/6/130620660/1206244.pdf
    • http://renownedvisionariesunited.world/uploads/1/3/0/4/130476215/3045252.pdf
    • http://clubmegamixradio.net/uploads/1/3/0/4/130488820/f546bb0c4ee.pdf
    • http://theurbanclimatologist.com/uploads/1/3/0/5/130541131/6384386.pdf
    • http://mydjdave.com/uploads/1/3/0/4/130488220/worabexova_zegugepiv_sugijeja.pdf
    • http://2handsstudio.net/uploads/1/3/0/6/130620382/tomitipivedof_goxotemim_lasezosi_niresirege.pdf
    • http://red-casino.net/uploads/1/3/0/4/130483303/3742731.pdf
    • http://beverlywilshire.org/uploads/1/3/0/6/130604810/vasivuvaw.pdf
    • http://simusa.n26-logine.com/uploads/2020/01/28/5093321.pdf
    • http://thesuspiciouscarrot.com/uploads/1/3/0/5/130550698/lutagofolibe-duxiwobimiz.pdf
    • http://tedrabinowitzcopywriter.net/uploads/1/3/0/5/130551339/5c9edab.pdf
    • http://ssphotography.net/uploads/1/3/0/4/130483273/9815766.pdf
    • http://centreformindfulness.ca/uploads/1/3/0/4/130483736/numujililibapodojer.pdf
    • https://fumawudijuxoven.weebly.com/uploads/1/3/0/5/130590477/tazopopalem_sifop_puvupojul_bilejuve.pdf
    • http://xum.segundamorada.com/uploads/2020/01/28/54cf65c51c10e.pdf
    • http://dodgeplanroomqa.com/uploads/1/3/0/4/130490181/130490181.html#calisthenics+workout+program+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001a08.bin
7bd09e1c515c95f96b5f01a7aab12f0f932b8290c4b8a0abda265c94b9302a28		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1A08 8056 bytes

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