Malicious PDF — malware analysis report

Static analysis result for SHA-256 b94f59643ddee54b…

MALICIOUS

PDF

46.6 KB Authoring application: Scribus
MD5: 726d34cd4c2971fd33aba0caaed6d4a1 SHA-1: 90fbce6a44f0c315ac8ffc67628c2cbda54bd09d SHA-256: b94f59643ddee54beb0bedd0ed106be98b5033503b65f1fbd4e6b6583ae1e133
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on numerous domains, suggesting a coordinated effort to distribute malicious content or conduct phishing. The ClamAV detection further confirms the malicious nature of the file. The document body contains garbled text and irrelevant metadata, indicating it is not intended for human consumption but rather as a vehicle for 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://sylteszeri.com/uploads/1/3/0/3/130313241/77bee9fc3d8b5c4.pdf
    • http://www.nicoleteague.com/uploads/1/3/0/5/130544687/3823825.pdf
    • http://nedsykil.store/uploads/1/3/0/4/130490687/devifevatu.pdf
    • http://gregkorb.org/uploads/1/3/0/7/130775396/dd864721acccf60.pdf
    • http://referralroulette.com/uploads/1/3/0/8/130814774/gonukenezob.pdf
    • http://mostafaelbaba.net/uploads/1/3/0/3/130313463/c0dcee89f9976ee.pdf
    • http://my911alerts.com/uploads/1/3/0/6/130621285/1345394.pdf
    • http://sparksnewstoday.com/uploads/1/3/0/6/130621620/tegazokupud.pdf
    • http://susansgardenminipigs.com/uploads/1/3/0/2/130287972/c708d21253.pdf
    • http://agelesswisdomfederation.com/uploads/1/3/0/5/130539913/c0ee023c8a18.pdf
    • http://burnehogarth.net/uploads/1/3/0/4/130476342/8566599.pdf
    • http://lucassincasa.com/uploads/1/3/0/4/130435862/f10f6.pdf
    • http://encountermedicalgroup.com/uploads/1/3/0/6/130639914/1a5aacb.pdf
    • http://emilylimes.com/uploads/1/3/0/6/130620751/tubaxu-wedajegufipavip-zamoja-lonasowul.pdf
    • http://teamthumann.com/uploads/1/3/0/7/130739206/zexutaxipasol_munan_roviretako.pdf
    • http://sassyelephants.net/uploads/1/3/0/7/130739628/5c72da0.pdf
    • http://wwwjanazahkitscentralcom.com/uploads/1/3/0/6/130621141/gugedin.pdf
    • http://sharonostrov.com/uploads/1/3/0/6/130639842/kujagozur_kogowifumadi_xogefinadiros.pdf
    • http://audodigital.com/uploads/1/3/0/5/130588966/daluz_sejutemu.pdf
    • http://harbinvodka.com/uploads/1/3/0/6/130605416/466f7.pdf
    • http://olshefsky.com/uploads/1/3/0/4/130483447/8677903.pdf
    • http://sssplumbingsupply.com/uploads/1/3/0/3/130313221/02c051bd4d.pdf
    • http://musicconnectionproject.org/uploads/1/3/0/4/130435531/8869964.pdf
    • http://ibnem.slpny.com/uploads/1/3/0/7/130776582/130776582.html#projector+acer+x127h+pdf
    • http://referralroulette.com/uplo

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000039f4.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x39F4 16036 bytes
font_01_sfnt_off0000515c.bin
b3183d52ec4f83bee206c27a72891b762d39dbda2e1865b9a50eb139d2ddfe2b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x515C 8844 bytes

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