Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ce21da0389eadfa…

MALICIOUS

PDF

38.6 KB Authoring application: GIMP
MD5: 7aa201e30fce361b635b1a3419376845 SHA-1: dadb129bb98088ab95c1017dad63b602a9cf73f2 SHA-256: 3ce21da0389eadfa206e173b12dd47614d8cab7f2905b39761a6e5b08944038d
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs, identified as a link farm. This heuristic, combined with ClamAV's detection of 'Pdf.Phishing.TtraffRobotInstall-7605656-0', strongly suggests a phishing or SEO abuse attack pattern. The embedded URLs are likely used to redirect users to malicious sites or to improve the search engine ranking of such sites. 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://lanwanwireless.net/uploads/1/3/0/6/130640003/labovifubawo.pdf
    • http://moonlitdreamspublications.com/uploads/1/3/0/6/130621490/towuvaxafuwet-bawotu.pdf
    • http://raychavez.net/uploads/1/3/0/6/130621455/3142478.pdf
    • http://premiertrainingandrecrutment.com/uploads/1/3/0/7/130775819/8157881.pdf
    • http://harvestleaders.org/uploads/1/3/0/4/130477633/9917f4c.pdf
    • http://resourcesforthesoul.com/uploads/1/3/0/2/130291523/fb29aac5c0.pdf
    • http://mjyoga.net/uploads/1/3/0/4/130476981/4219573.pdf
    • http://visionofavagabond.com/uploads/1/3/0/5/130539092/soderopepe_gijebomew_midonanuro_koripinetotini.pdf
    • http://thereirockstar.com/uploads/1/3/0/5/130545800/baruxiguretavabi.pdf
    • http://sayfgate.com/uploads/1/3/0/8/130874473/9839546.pdf
    • http://paulakeogh.net/uploads/1/3/0/7/130739387/6156661.pdf
    • http://boldercredit.com/uploads/1/3/0/3/130323493/5388698.pdf
    • http://superyachtholding.com/uploads/1/3/0/7/130739220/3552390.pdf
    • http://cnmetalfinishing.com.au/uploads/1/3/0/6/130639642/1811763.pdf
    • http://www.cr-sourcing.com/uploads/1/3/0/6/130639321/vofevetako.pdf
    • http://maritimeinsurancebrokers.net/uploads/1/3/0/6/130640179/f4a7928cc2.pdf
    • http://an-art.nl/uploads/1/3/0/7/130739980/napaxuvigotiluxumege.pdf
    • http://gabbiadelcazzo.com/uploads/1/3/0/7/130775841/jewonupil_bexovumadofegud_nosevijaji_xanosul.pdf
    • http://darciestevenson.com/uploads/1/3/0/2/130270753/wonupopemedab_mitegadunavopi.pdf
    • http://griddallas.com/uploads/1/3/0/5/130588280/98f88aa3ba5a.pdf
    • http://carbonneutralnetworks.com/uploads/1/3/0/6/130605346/derufesiwijapemav.pdf
    • http://monsoonal.com/uploads/1/3/0/7/130775109/6948429.pdf
    • http://dogfriendlyrentalsonsanibel.com/uploads/1/3/0/7/130738963/telejupolenas.pdf
    • http://allaboutalyssam.com/uploads/1/3/0/7/130776518/pijojepusukojuwa.pdf
    • http://host124.carmichaelnl.com/uploads/1/3/0/6/130639939/130639939.html#romantic+movement+british+literature
    • http://lanwanwireless.net/uploads/1/3/0/6/13064

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003422.bin
3ad4b8a28d9d4be3c0384393868f07b27c41dbba9b1f65572175615c171d3c46		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3422 7680 bytes

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