Malicious PDF — malware analysis report

Static analysis result for SHA-256 96ec4ace25b2fc87…

MALICIOUS

PDF

79.9 KB Created: 2020-03-06 16:25:37 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 46832ec079ea5a7aa428fce43e57eee5 SHA-1: 388e74d720a24c8a0b1602c1f5e0f3141b0a0aa8 SHA-256: 96ec4ace25b2fc87dc516baf295ba80073e590f84570c2c3cdf7706c21be1a53
96 Risk Score

Malware Insights

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

The PDF document contains a lure related to 'Gta san andreas ammo cheat for xbox 360' in its body text, which is a common tactic for social engineering. It also contains a large number of external links, many of which are dynamically generated and point to various domains, indicating a link farm or redirection scheme. The primary URL identified is http://74-123-79-113.mgwnet.com/uploads/1/3/0/6/130604780/130604780.html#gta+san+andreas+ammo+cheat+for+xbox+360, which likely serves as the initial landing page for the attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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://74-123-79-113.mgwnet.com/uploads/1/3/0/6/130604780/130604780.html#gta+san+andreas+ammo+cheat+for+xbox+360 PDF link annotation
    • http://www.thegivenessproject.org/uploads/1/3/0/8/130814652/4896871.pdfIn PDF document text
    • http://mx.lpeditor.com/uploads/1/3/0/4/130436218/tawunaz.pdfIn PDF document text
    • http://6iijoi.bdgct.com/uploads/1/3/0/7/130738831/8220279.pdfIn PDF document text
    • http://kokopellikikosandpackgoats.com/uploads/1/3/0/7/130776821/b311e3.pdfIn PDF document text
    • http://firstplacemaintenace.com/uploads/1/3/0/5/130550858/c8b6bd079a76.pdfIn PDF document text
    • http://newvisionservice.it/uploads/1/3/0/7/130738644/foxaranililududutiwi.pdfIn PDF document text
    • http://www.utica48317.com/uploads/1/3/0/5/130590308/putimuwanobepunefo.pdfIn PDF document text
    • http://sarahdguerra.com/uploads/1/3/0/3/130313555/jawomamojip.pdfIn PDF document text
    • http://eastpointmdc.com/uploads/1/3/0/4/130436007/6222808.pdfIn PDF document text
    • http://shaibachar.com/uploads/1/3/0/7/130738889/welugadiba.pdfIn PDF document text
    • http://ntcigraffiti.com/uploads/1/3/0/7/130775651/6911261.pdfIn PDF document text
    • http://ecoles-travelling.com/uploads/1/3/0/4/130483489/sopaduzepo-potetox-wapaler-sigusisape.pdfIn PDF document text
    • http://wesewwonderful.com/uploads/1/3/0/3/130313513/3311147.pdfIn PDF document text
    • http://acc-knightconferencecenter.com/uploads/1/3/0/5/130545421/mesejijumena_piruwujuwenezi.pdfIn PDF document text
    • http://www.stringsforhope.org/uploads/1/3/0/4/130476703/822475bd.pdfIn PDF document text
    • http://highspeed-staffing.tech/uploads/1/3/0/4/130475989/6135936.pdfIn PDF document text
    • http://byhumano.com/uploads/1/3/0/3/130323151/jidofoj-vujeruxanoneri-xolebozavesex.pdfIn PDF document text
    • http://aloaninthesun.com/uploads/1/3/0/8/130874430/sotuxewus_kukogofi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://www.adobe.com/).NotoIn PDF document text
    • http://www.google.com/get/noto/http://www.adobe.com/type/ThisIn PDF document text
    • http://scripts.sil.org/OFLNotoIn PDF document text
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c4f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4F6 6168 bytes
SHA-256: f8c16b5cd1b43a298b1dd6e36009978e5ad0c53a0eae877a8646dda06244b855
font_01_sfnt_off0000d3a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3A0 9172 bytes
SHA-256: fd55a59105e722df27c1e16d823b503e3b6e29bc9e6a37a4301ef484e7ae6e71
font_02_sfnt_off0000f643.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF643 4312 bytes
SHA-256: 29d1667f6c959f076e1909d0ecd720b1cb29eaeb24357670dd961d6d9e0d15e0
font_03_sfnt_off000103f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103F2 2768 bytes
SHA-256: 00524aa36803859dd3cb7859b667cf9a530f1cdd68dabebdbd730f453e4511b8
font_04_sfnt_off00010dc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DC7 2964 bytes
SHA-256: 5dc588decbf67e88669bfd5fd59e378f230a67d753676147e19840fd6c7a00bf
font_05_sfnt_off00011a3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A3C 16096 bytes
SHA-256: 9955a10f44b3bbd8f8c69af80e2423d9288745809d8e230d8c4621fdf1b04c07