Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc89c1985328b8ef…

MALICIOUS

PDF

32.4 KB Created: 2020-05-24 14:21:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dbe0e00d5235ea4946a2cc1d1c2284ce SHA-1: c9f38add90cf00284274accf31ace1275aa90bdc SHA-256: cc89c1985328b8ef546ff5c58291aeace628dd93f66ad579b349b2fbb4eca8ae
94 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF document contains a large number of external links, many of which point to other PDF files, suggesting a link farm for SEO manipulation. The primary lure appears to be a fake driver download page for 'Turtle beach xl1'. The ML classifier strongly indicated maliciousness. No scripts were extracted, but the extensive link farm and the nature of the lure suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://bn0tr.bpmtc.com/uploads/1/3/0/7/130775953/130775953.html#turtle+beach+xl1+driver+download
    • http://edela.net/uploads/1/3/0/6/130620645/2ae0e0c4.pdf
    • http://refindbynature.com/uploads/1/3/1/6/131607278/degemozu.pdf
    • http://unichoo.com/uploads/1/3/0/5/130589393/kawuxuzutedifoji.pdf
    • http://icomcam.com/uploads/1/3/1/8/131871710/doloruba.pdf
    • http://barleysbeans.com/uploads/1/3/1/6/131637527/1764638.pdf
    • http://radiobookclub.com/uploads/1/3/1/4/131483245/pamonokogow_jilikosepugibam.pdf
    • http://neuracing.com/uploads/1/3/0/5/130544790/mimifuv.pdf
    • http://counselingcollaborativesllc.com/uploads/1/3/0/2/130289799/woxupab.pdf
    • http://jessiessouthsideperformance.com/uploads/1/3/0/4/130435518/malexadivenu.pdf
    • http://cxboilertech.com/uploads/1/3/0/4/130489055/65fdb288c.pdf
    • http://vmhservices.net/uploads/1/3/1/4/131437363/tipewonupoge-vazebu-zozofu.pdf
    • http://sabrcoaching.com/uploads/1/3/0/2/130270859/d4307.pdf
    • http://scuwibblog.com/uploads/1/3/1/8/131857590/87c910c6.pdf
    • http://newlineofficefurniture.com/uploads/1/3/0/8/130874142/pibebekiwo_zijejoxun.pdf
    • http://subacutelogisticscorp.com/uploads/1/3/1/8/131857474/363efed483e9.pdf
    • http://gator4wd-plowmachine.com/uploads/1/3/0/5/130590029/dejijozogo_bemeref.pdf
    • http://onlinepsychicfair.com/uploads/1/3/0/5/130590763/difigenepuzumu.pdf
    • http://floridianfabrics.net/uploads/1/3/1/4/131453343/virix_mimidinebu.pdf
    • http://anresultsconsultoria.com/uploads/1/3/1/0/131070027/gogetifidisib.pdf
    • http://findinggracellc.com/uploads/1/3/0/5/130590339/b15e0.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000529a.bin
7c7a7e8b96d379d6eb5e3a82f894c5ddb386124ab551f1e2b79c0e233cb2d76a
pdf-font-stream PDF embedded font (sfnt) at offset 0x529A 10152 bytes