Malicious PDF — malware analysis report

Static analysis result for SHA-256 e10c37aa9f889967…

MALICIOUS

PDF

113.4 KB Created: 2020-03-07 13:40:34 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: d98828a9fa1e30e6514fd90889f08f0d SHA-1: e1b54c64241e7b7169d8fe1aaf5dad4d6204351d SHA-256: e10c37aa9f8899676039442d3649dbd5f294a67ac9b0a6b977e58d89bd40557e
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous external links, indicating a link farm or SEO spamming attempt. The heuristic 'SE_LOLBIN_RUN_COMMAND' suggests that the document may contain instructions for executing commands using Windows scripting tools. The primary URL points to an HTML file with a query parameter related to 'alcohol withdrawal syndrome', likely a lure to attract unsuspecting users. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery mechanisms.

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.
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • 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://6wqmbr.bdgct.com/uploads/1/3/1/0/131070036/131070036.html#alcohol+withdrawal+syndrome+wikipedia
    • http://vgblox.com/uploads/1/3/0/3/130323564/ab371c45f423.pdf
    • http://sfte-seattle.org/uploads/1/3/0/5/130551630/bobipefikufewep-kekomux-woxiwifijikexow-liwotopodurim.pdf
    • http://www.caregivertogether.com/uploads/1/3/0/5/130539518/topofilidatilati.pdf
    • http://www.catsandquilts.ca/uploads/1/3/0/5/130551143/pitijevanefalabur.pdf
    • http://sovereignbirth.com/uploads/1/3/0/6/130620437/kikiligodoj-soramosivugum-wejedef-sevajasaze.pdf
    • http://bungalows-semidees.com/uploads/1/3/0/2/130287242/voxivugemu.pdf
    • http://mx.glasshousestudiostx.com/uploads/1/3/0/8/130813646/mafegowixonujomub.pdf
    • http://webdisk.13rays.org/uploads/1/3/0/6/130639223/f5580b404d7bba.pdf
    • http://lawsmartz.com/uploads/1/3/0/3/130324270/705343.pdf
    • http://cherryhilllawncare.com/uploads/1/3/0/7/130775950/povevewupoj.pdf
    • http://ateliegourmetlualves.com/uploads/1/3/0/5/130538841/darakiwonu_figefu_xurulovorowu_maxejika.pdf
    • http://mltech.com.au/uploads/1/3/0/3/130379199/40de59a.pdf
    • http://www.minnesotalowvision.com/uploads/1/3/0/9/130969456/laliba-denimegixewagi-vowilazenadilu-tewow.pdf
    • http://guttersystemsmichigan.com/uploads/1/3/0/4/130489359/1221516.pdf
    • http://hostmaster.est1878.co.uk/uploads/1/3/0/7/130776445/8759975.pdf
    • http://bombaspeerless.com/uploads/1/3/0/6/130640163/9729537.pdf
    • http://insurance4parkcity.com/uploads/1/3/0/4/130490410/nasug_zijozukopune.pdf
    • http://www.drmelissaspringstead.com/uploads/1/3/0/7/130775382/eb7c9e7eb.pdf
    • http://mta-sts.woodsideschool.org/uploads/1/3/0/5/130543816/c63eb.pdf
    • http://next2younext2me.net/uploads/1/3/0/2/130270971/wafesujobezen_mudajo_fezetisupulujug_xeralikapujif.pdf
    • http://ameezing-eindhoven.nl/uploads/1/3/0/5/130551218/zupub.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00016d71.bin
f101aed7dd13e2882ce2509934ce2fb74ba976cfb7c09b35ec872615d56e883f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16D71 10856 bytes
font_01_sfnt_off00019451.bin
0cb224e0972ddf0e19e58e068ac9489570e11434c0106897f09526456610955e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x19451 2988 bytes
font_02_sfnt_off00019ed0.bin
8fe53990b18c709d9496b40b9ccff589f19049df73054d678d97fcc3581ec74b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x19ED0 16608 bytes

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