Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab523eaa82d35248…

MALICIOUS

PDF

47.4 KB Authoring application: Adobe PDF Library 9.0
MD5: 5c7cee074c7de3e5dfc5e4c4c88b6b9b SHA-1: d017099ea3358f73a3e0de040adc43075e8c3855 SHA-256: ab523eaa82d352489cf187210f57b9f3bbc27959e291aff985958ae11c59b5aa
120 Risk Score

Malware Insights

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

The PDF document exhibits a 'link farm' pattern, containing numerous external URLs. This strongly suggests a phishing or malware distribution attempt, where users are lured to click on these links. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the malicious intent. No scripts were extracted from this sample.

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://msgrp.us/uploads/1/3/0/6/130603825/7286435.pdf
    • http://deitzlandsurveying.com/uploads/1/3/0/2/130289254/5656033.pdf
    • http://cultafrica.org/uploads/1/3/0/5/130589213/daxoposupapalitanis.pdf
    • https://sazewagipefel.weebly.com/uploads/1/3/0/5/130589260/salatazupuril-jeburafudedo-dozeporuretam-juxazibovalu.pdf
    • http://nationalbeachranking.com/uploads/1/3/0/6/130620464/sosefusoru.pdf
    • http://jixakajog.homecookingbook.com/uploads/2020/01/28/bekoladipufasapemule.pdf
    • http://yunlaomao.com/uploads/2020/01/28/1544565.pdf
    • http://millercounselingserv.com/uploads/1/3/0/5/130543671/rinif_sivoxowidezunat.pdf
    • http://phonic88.com/uploads/1/3/0/7/130738974/3081639.pdf
    • http://nqxr.com.au/uploads/1/3/0/6/130604892/3766373.pdf
    • http://bigislandeventrentals.com/uploads/1/3/0/4/130483163/zesukajapaxe.pdf
    • http://1304shopff.fun/uploads/2020/01/28/xeraziri-siduzav-fupafebuli-sozotanijiji.pdf
    • http://mynaturalhairspa.com/uploads/1/3/0/6/130639641/130639641.html#incoterm+2016+pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000013f5.bin
eeaa737c28e76cccb42f193b501878912af0b518c7d2a411310cf3cbd61c4f26		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13F5 10360 bytes
font_01_sfnt_off00006f3f.bin
5a235a9ce51ceda8aa783d2856bc1677ebe4b596d154d19e17c730c5cf5927ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F3F 17708 bytes

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