Malicious PDF — malware analysis report

Static analysis result for SHA-256 5052bb32913fc467…

MALICIOUS

PDF

32.4 KB Authoring application: OpenOffice Draw
MD5: 0c6ede6629db403ad9e63aeff4347526 SHA-1: 0b8ce9b95d74d58a9f3335e732efdf29d2482425 SHA-256: 5052bb32913fc4673a0d0f9936735155297e036e8d8ed585c12ab3b041be12b7
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. ClamAV also detected this as Pdf.Phishing.TtraffRobotInstall-7605656-0, suggesting a phishing or traffic redirection scheme. The ML classifier strongly agrees with the malicious verdict. The document body is heavily corrupted and does not provide further context.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://starstatusbundles.com/uploads/1/3/0/2/130270996/tekejoditeraje-xumezapom.pdf
    • http://suddenweblink.online/uploads/2020/01/28/tozalimizutawute.pdf
    • http://travelingnurses1.com/uploads/1/3/0/4/130483937/d8f10f5.pdf
    • http://carasoul.com/uploads/1/3/0/4/130488700/kanujow_mijak_fumoxekusaw_toxolaxozuxep.pdf
    • https://ranepovasa.weebly.com/uploads/1/3/0/2/130289211/gurafagezori.pdf
    • http://un-mariage-a-la-reunion.fr/uploads/1/3/0/5/130589310/4676f9f254c.pdf
    • https://bivoranojufubo.weebly.com/uploads/1/3/0/3/130323291/vajazawi.pdf
    • http://vittonezone.com/uploads/1/3/0/5/130543065/e174a62fdc.pdf
    • http://rostelekomu.fun/uploads/2020/01/28/magebofotapi_zukuvomolol.pdf
    • http://goredewoge.mukhitdinov.org/uploads/2020/01/27/nuzopepu.pdf
    • https://tuwenugajas.weebly.com/uploads/1/3/0/2/130271077/xekuk_nefuteto.pdf
    • http://bagarem.wannahotgirlss.online/uploads/2020/01/28/5010672f5200.pdf
    • https://lolijuxinu.weebly.com/uploads/1/3/0/4/130489172/c26ff4c84e74105.pdf
    • http://kudunev.prosportonline.ru/uploads/2020/01/27/fexiga.pdf
    • http://lupe.finresult.com/uploads/2020/01/27/vutisuresino.pdf
    • https://muzetikoxufam.weebly.com/uploads/1/3/0/4/130476385/xezamodix-dalanujuvaxomaj.pdf
    • https://futiroma.weebly.com/uploads/1/3/0/3/130313339/loludubufi_gesamom_jodonajoxova_jawukox.pdf
    • http://jowujekija.agicole-acces.com/uploads/2020/01/28/runolokoto.pdf
    • http://fearnoevilcomedy.com/uploads/1/3/0/6/130620952/xuxewijumikeg_tevugegawovil.pdf
    • http://mimiscoffeehouseofhardwick.com/uploads/1/3/0/3/130379522/kipejike.pdf
    • http://nokox.mupoisk.info/uploads/2020/01/29/b6ecfe643532467.pdf
    • http://girokonto-vergleiche.com/uploads/2020/01/27/5516917.pdf
    • http://septictankpumpinggwinett.com/uploads/1/3/0/6/130621554/nopezifuvidik-xezufobudebidu-sowezobe.pdf
    • http://zetotulur.vipiski-besplatno9.icu/uploads/2020/01/27/zawar.pdf
    • http://rwbickfordconstruction.com/uploads/1/3/0/2/130271080/zudavatobodup.pdf
    • http://albertonorchids.com/uploads/1/3/0/3/130324248/130324248.html#bubble+sort+in+c+++program+using+templates

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000017b2.bin
9de9c556b2ada09620af1f75a8aced86dc21cb529acb72a3de3e00513015bb3d
pdf-font-stream PDF embedded font (sfnt) at offset 0x17B2 6568 bytes