Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ccce2560ca31f9f…

MALICIOUS

PDF

65.6 KB Created: 2020-04-25 18:33:41 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 9d69345069855bf4edaa5d00e4cefaf2 SHA-1: e55feb9678106d76f97c8b98837917a27866749d SHA-256: 2ccce2560ca31f9f28725663887cf525fe3cf3f638cb489b12a38537fd32f3a2
92 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, a technique often used for SEO manipulation or to redirect users to malicious sites. The ML classifier strongly indicated maliciousness. The document body contains garbled text but also references 'abu sadam whatsapp apk' and includes URLs that appear to be part of a link farm, suggesting a lure to download potentially unwanted or malicious software.

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.
  • 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://runandworship.org/uploads/1/3/0/5/130590545/130590545.html#abu+sadam+whatsapp+apk
    • http://heavenlycalendar.net/uploads/1/3/0/8/130874150/86fae5.pdf
    • http://tourismirelandgolf.com/uploads/1/3/0/5/130550824/pidetevak-pabogirewolo-vibadarofi.pdf
    • http://corsettiparalegal.com/uploads/1/3/0/5/130589399/kemofun-medodadoto-duxumevemaneke-kegev.pdf
    • http://trkbuildinggroup.com/uploads/1/3/0/2/130287243/tunigijurij.pdf
    • http://supremestormservices.com/uploads/1/3/1/3/131380208/6942841.pdf
    • http://adlibindustries.com/uploads/1/3/0/2/130274097/7915311.pdf
    • http://thomasvillept.com/uploads/1/3/0/3/130323332/jafunakelejokapew.pdf
    • http://indiabarker.com/uploads/1/3/0/7/130738919/fudajakinineduvu.pdf
    • http://condokey.online/uploads/1/3/1/4/131453595/zisumeduzujed.pdf
    • http://lakegenevatc.com/uploads/1/3/1/4/131407965/cb20c1665fba8.pdf
    • http://fowlerandfifedds.com/uploads/1/3/0/5/130588246/bec6c708a6d0320.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000c5ae.bin
22319c4482a36103810d4eba9a7f445addaf8de97efdc521293a83091f08207c		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0xC5AE 30012 bytes
font_00_sfnt_off0000a551.bin
db4668d4748df202a94e5e5219e586721311f5d76fea80eee4b43ae2b4c8abec		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA551 8388 bytes

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