Malicious PDF — malware analysis report

Static analysis result for SHA-256 da9f439f92691a59…

MALICIOUS

PDF

51.8 KB Created: 2020-03-11 06:16:19 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7b09127c44cca2569bd214be910f2ef1 SHA-1: 879d9c299f1f58079e77eba001a1dfd430eb7f9d SHA-256: da9f439f92691a59684495cdaa359b7f8f89a3a44faa3776906a04b26547623b
82 Risk Score

Malware Insights

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

The PDF document contains a lure to download a software crack, which is a common social engineering tactic to trick users into downloading malware. The document also contains a large number of external links, suggesting a link farm for SEO poisoning. No scripts were extracted from this sample, but the presence of the 'SE_ENABLE_LURE' heuristic indicates the document likely instructs the user to enable macros or editing to execute a payload. The embedded URLs are likely used to host or redirect to the malicious payload.

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.
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
  • 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://studyincartagena.com/uploads/1/3/0/7/130775374/130775374.html#adobe+audition+3.0+crack+only+free+download
    • http://www.scalestatistics.com/uploads/1/3/0/7/130775368/4106901.pdf
    • http://greentourgroup.com/uploads/1/3/0/2/130271209/89813e9f5e60a.pdf
    • http://beyondcharisma.org/uploads/1/3/0/8/130874540/1085951.pdf
    • http://zonemaster.jayma.nl/uploads/1/3/0/7/130776561/55074798415.pdf
    • http://trueelegancetransportation.com/uploads/1/3/0/6/130620857/dufabuj.pdf
    • http://www.nyssajowallace.com/uploads/1/3/0/6/130639373/pepapelu.pdf
    • http://www.newcoastermagazine.2waterspublishing.com/uploads/1/3/0/4/130488301/4a328545637.pdf
    • http://shinetogether360.org/uploads/1/3/0/6/130639448/cf68cdae88b90.pdf
    • http://generousandkind.com/uploads/1/3/0/6/130621066/046dcd2e086a5e7.pdf
    • http://hawaiisandfest.com/uploads/1/3/0/4/130476145/rilet_dutexidedasamok_baxivo.pdf
    • http://eliasmexicangrillshoponline.com/uploads/1/3/0/4/130483939/5509f68c2bb0a.pdf
    • http://www.crediarc.mx/uploads/1/3/0/6/130640155/9984717.pdf
    • http://easyentry.us/uploads/1/3/0/3/130312951/tarusanawanib.pdf
    • http://pccmonroe.com/uploads/1/3/0/5/130551772/12780f764f07a.pdf
    • http://in.aiit.org.in/uploads/1/3/0/4/130436226/d85fc542.pdf
    • http://millennialwomen.net/uploads/1/3/0/4/130483205/daxikuxunasoxikeduti.pdf
    • http://cancercars.net/uploads/1/3/0/2/130272862/solizezaro.pdf
    • http://maverickrealtyadvisors.com/uploads/1/3/0/7/130738801/515978ef65f62a.pdf
    • http://www.lotsofwoods.com/uploads/1/3/0/2/130270753/197daf35d13f72.pdf
    • http://waxwingaerial.com/uploads/1/3/0/5/130539049/dowuvowudumido-dejimame-gadipufaju-zajafor.pdf
    • http://ozarknaturalpaneling.com/uploads/1/3/0/3/130323930/monapojetafabuloziba.pdf
    • http://solutionxpertconsultants.com/uploads/1/3/0/3/130324236/mesanekasim.pdf
    • http://dussavenuecafe.com/uploads/1/3/0/7/130776454/nomeze.pdf
    • http://mta-sts.mail.takethe55.com/uploads/1/3/0/8/130814531/9ca500e5464196c.pdf
    • http://dussavenuecafe.com/uploads/1/3/0/7/130776454/nom
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007a7e.bin
ebdaf0ca0030159f20ac7d6e76ba281ad777a85b87042277e82762390b3bc7e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A7E 9284 bytes
font_01_sfnt_off00009bbc.bin
83459e82cebe561b9e65dda6a09953c9e35f75e5df0fa62a624e1833cc5b8086		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9BBC 1708 bytes
font_02_sfnt_off0000a423.bin
ee6f66977995bec086cf873838a1af185a93d546c4c957c7c3dc12542dc25a34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA423 18624 bytes

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