Malicious PDF — malware analysis report

Static analysis result for SHA-256 747b0371c0f94686…

MALICIOUS

PDF

55.4 KB Authoring application: GIMP First seen: 2020-09-07
MD5: 9465aa0c206f4beb7be35e2e1d4295ab SHA-1: 7f6658c537efdedc59d5233908fb41a38d1be3b6 SHA-256: 747b0371c0f946867a220cbb28f1f7ea07efaf9c01be5974bb357a99f8f1a031
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV and an ML classifier, and exhibits a PDF SEO link farm heuristic. It contains numerous embedded URLs, many of which point to other PDF files hosted on various domains. This suggests a tactic to distribute content or manipulate search results, potentially as a phishing or spam distribution mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://rickformi.net/uploads/1/3/0/6/130620987/nizamidawusiteg_pozuwubiso_gaperejimililor.pdf In PDF document text
    • http://chitchatthisthat.com/uploads/1/3/0/6/130621776/ditutebe.pdfIn PDF document text
    • http://windsongvilla.com/uploads/1/3/0/2/130271177/991631.pdfIn PDF document text
    • http://instaglide.com/uploads/1/3/0/7/130740177/e24e5407a7c.pdfIn PDF document text
    • http://lsboudoirlondon.co.uk/uploads/1/3/0/3/130379078/2940dde4b84f.pdfIn PDF document text
    • http://newdreamrenovations.com/uploads/1/3/0/6/130621952/pebebero_lamijode_koledeguzobaraz_rozigeneruji.pdfIn PDF document text
    • http://bravaycommunications.com/uploads/1/3/0/5/130590719/9496112.pdfIn PDF document text
    • http://sossanantonio.com/uploads/1/3/0/2/130287839/sonoveduk_wilij_bijalexow_palujerivep.pdfIn PDF document text
    • http://my-gama.com/uploads/1/3/0/7/130775680/galevum.pdfIn PDF document text
    • http://nordicin.net/uploads/1/3/0/6/130621439/koxiritazudirobe.pdfIn PDF document text
    • http://meetlia.store/uploads/1/3/0/8/130813409/48f1022df6f81c8.pdfIn PDF document text
    • http://lip40.goteamonline.com/uploads/1/3/0/2/130289424/diles_lofirolaxanon.pdfIn PDF document text
    • http://adammarkeckman.com/uploads/1/3/0/5/130590278/4cf9bba562189.pdfIn PDF document text
    • http://myblueprintforchange.com/uploads/1/3/0/5/130541744/d2fc28a5.pdfIn PDF document text
    • http://phonesex4cheap.com/uploads/1/3/0/2/130289554/wadida.pdfIn PDF document text
    • http://theagerstenmissionarystory.com/uploads/1/3/0/7/130739558/4126000.pdfIn PDF document text
    • http://gvk4nm.com/uploads/1/3/0/2/130273733/3b302f7ab0afc.pdfIn PDF document text
    • http://host248.carmichaelnl.com/uploads/1/3/0/5/130590122/130590122.html#modelo+relacional+base+de+datos+que+esIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001432.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1432 9348 bytes
SHA-256: 49a8081704351923d0ddcada4635a824b4bc9c8a1145cdc770db6f59de122543
font_01_sfnt_off00009794.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9794 1588 bytes
SHA-256: 7d0e4f26927737c593ed7efda103a1107150fe3ac8ddbcafaf6ee6c0af50a0b0