Malicious PDF — malware analysis report

Static analysis result for SHA-256 255e1d5b8abbd137…

MALICIOUS

PDF

42.5 KB Authoring application: PDFedit
MD5: fe8a861d63d1cae5b2350a94cd0704f8 SHA-1: 6b8975e8a608ca958b0d43a9054c26eb7a0492f5 SHA-256: 255e1d5b8abbd137cdc028993576b6cf9a61e095e13d27098662f9e11c37087a
120 Risk Score

Malware Insights

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

The PDF file was detected by ClamAV as Pdf.Phishing.TtraffRobotInstall-7605656-0. Static analysis revealed a large number of embedded external URLs, indicating a link farm likely used for phishing or SEO manipulation. The document body contains text related to laptop specifications, which may serve as a lure to disguise the malicious intent of the embedded links.

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://shs-gymbay.de/uploads/1/3/0/5/130543538/2198517.pdf
    • http://musc-media.xyz/uploads/2020/01/29/voron.pdf
    • https://nawepaso.weebly.com/uploads/1/3/0/3/130313221/rovasib-zuvasazux.pdf
    • http://honestrepairacheating.weebly.com/uploads/1/3/0/3/130379065/jebegerutetus.pdf
    • https://mowexuvuvi.weebly.com/uploads/1/3/0/4/130488412/1528269.pdf
    • http://sate.pulkovo3.info/uploads/2020/01/27/99d422f5874.pdf
    • http://jinawafo.eshorttech.com/uploads/2020/01/28/betuzen.pdf
    • http://wizulanup.getthedriver.com/uploads/2020/01/27/zogigibuziriton.pdf
    • http://komchoprestuarant.com/uploads/1/3/0/2/130287847/cbe611f6919.pdf
    • http://toma.accessory-app.com/uploads/2020/01/27/1880790.pdf
    • http://voxi.salecheb.ru/uploads/2020/01/29/0f49d8.pdf
    • http://markbarun.com/uploads/2020/01/27/bubopamidororokudu.pdf
    • http://gojex.prosamoe.ru/uploads/2020/01/28/7157549.pdf
    • http://transparenttransformations.com/uploads/1/3/0/4/130436196/29f766dff.pdf
    • http://1sthalffree.com/uploads/1/3/0/6/130621574/d5bff02eef7be6.pdf
    • http://staysjapan.com/uploads/1/3/0/6/130604025/1713840.pdf
    • http://nicolewilliamswrites.com/uploads/1/3/0/2/130274305/130274305.html#spesifikasi+laptop+acer+predator+helios+300

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001429.bin
b8f60685efa73e6bbe24813af664ab38bfb2bc272bfd0e0274da7556dcdb54ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1429 8036 bytes

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