Malicious PDF — malware analysis report

Static analysis result for SHA-256 871ec241e4495f75…

MALICIOUS

PDF

38.7 KB Created: 2020-05-23 08:18:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bcb4651f6abcad85157f29b482e3cc78 SHA-1: 6ea87bac0e448f9ea49d13c99c31466d7c8361a6 SHA-256: 871ec241e4495f7564e786adfbbb4465f2a2ccd36969cacaaa7932be8f359bed
70 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs, identified as a link farm, suggesting a phishing or redirection attempt. The document body, though partially corrupted, contains text related to a 'letter of resignation' and includes a prominent URL, likely intended to trick the user into clicking it. The presence of a 'visual download button' heuristic further supports the lure-based attack pattern. No scripts were extracted from this sample.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://9mn3i.bpmtc.com/uploads/1/3/0/6/130603688/130603688.html#letter+of+resignation+2+weeks+notice
    • http://el-equipo.com/uploads/1/3/1/4/131407823/zipifidabafope.pdf
    • http://glamievents.com/uploads/1/3/0/6/130639214/xemarabuxobunodado.pdf
    • http://mgreinigung.com/uploads/1/3/0/6/130605482/7758244.pdf
    • http://wol-law.com/uploads/1/3/0/4/130476214/6d0fbef7123edff.pdf
    • http://maceventsco.com/uploads/1/3/0/6/130621857/kufagezafikolid.pdf
    • http://pittville-apartments.com/uploads/1/3/0/4/130483616/ca73ac09.pdf
    • http://washcupbox.com/uploads/1/3/1/3/131380582/motora.pdf
    • http://lotusfamilycommunitysynergy.org/uploads/1/3/0/6/130605347/7d4fd0563e.pdf
    • http://kaliuokapaakai.org/uploads/1/3/0/8/130814355/muwegepo-roxobazovifinun-jumijum.pdf
    • http://spelljoy.org/uploads/1/3/0/7/130739446/3406e64af.pdf
    • http://randomjourney.net/uploads/1/3/1/0/131070329/2977038.pdf
    • http://meridianadvisorsusa.net/uploads/1/3/0/2/130272339/jagowugetojadet.pdf
    • http://harinet.net/uploads/1/3/0/3/130323937/263347749a7d7.pdf
    • http://trophystrategies.com/uploads/1/3/0/7/130740013/339fe9258cdd8f.pdf
    • http://kaleidoscope-style.com/uploads/1/3/0/2/130288962/kitanaposawewe.pdf
    • http://thepriceofjoy.com/uploads/1/3/0/5/130551066/60e973.pdf
    • http://spruikey.com/uploads/1/3/0/7/130738646/179f2ca4e5d3a9.pdf
    • http://ftbk.net/uploads/1/3/0/7/130775297/gopekuxizinab.pdf
    • http://mariettasquarefarmersmarket.net/uploads/1/3/1/3/131381886/e7777f9c67.pdf
    • http://clickshoppingonline.com/uploads/1/3/1/3/131383544/2897858.pdf
    • http://trafficoriental.net/uploads/1/3/1/4/131409717/wowufabinafupenekew.pdf
    • http://christikersten.com/uploads/1/3/0/2/130288600/pavat_juzisifuj.pdf
    • http://tlicioustreats.com/uploads/1/3/0/4/130488243/8325cc62.pdf
    • http://juneausquared.com/uploads/1/3/0/2/130270761/01c925af3b2.pdf
    • http://oyvezmir.com/uploads/1/3/0/7/130739744/770786.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_off00006c29.bin
ada373dcc4f9de7126c2fb44bc962cd49774eb3737cb3ecf93378eed546eaa99		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C29 9988 bytes

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