Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d29fe0ff31dc39f…

MALICIOUS

PDF

72.3 KB Created: 2020-03-10 08:52:23 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 25c1827835b68034e3d324211ae30103 SHA-1: 591ddbe71145dffb893012c621585f2ff654fd9a SHA-256: 8d29fe0ff31dc39fe50a1ec17f09bcdc1bee670adfe921c8f21261c74e5c2429
72 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, many of which point to other PDF files hosted on unrelated domains. This suggests a link farm or SEO manipulation tactic. The presence of a 'download button' lure further supports a malicious intent to direct users to potentially harmful content. No scripts were extracted, limiting the analysis of direct payload delivery.

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://ddct-24-4-crs-4g-100m.pleasingfood.com/uploads/1/3/0/3/130313186/130313186.html#hindi+letters+in+english+pdf
    • http://nrvikingspiritwear.com/uploads/1/3/0/8/130874501/6836300.pdf
    • http://discoveryai.com/uploads/1/3/0/8/130874670/tibuwenejij.pdf
    • http://drashraf.co.uk/uploads/1/3/0/7/130775792/31463.pdf
    • http://www.ctmsolns.net/uploads/1/3/0/4/130476821/wadivefelel.pdf
    • http://christianefontaine.com/uploads/1/3/0/6/130622032/degaw_noganorelunugu_dixufufikaluj_gakizej.pdf
    • http://multi-touchscreen.com/uploads/1/3/0/4/130478602/fesim.pdf
    • http://shambling-shimmies.com/uploads/1/3/0/2/130272482/sakuzidajera-sirofolavipe-doniwudorigox.pdf
    • http://flushit.org/uploads/1/3/0/5/130544790/vetegefazowavor_lamesuzotopukem.pdf
    • http://josephinelonetti.com/uploads/1/3/0/4/130489522/2223136.pdf
    • http://evolvelearningstudio.com/uploads/1/3/0/4/130476158/25a93d.pdf
    • http://moonmanifesting.com/uploads/1/3/0/4/130477755/5230695.pdf
    • http://www.amaarchitectsllc.com/uploads/1/3/0/2/130273987/riwemude_lonezobuguwudal_rebesimi.pdf
    • http://creditgeeks800.com/uploads/1/3/0/5/130539097/3799086.pdf
    • http://chesterspetbakery.com.au/uploads/1/3/0/8/130814935/pulatusom.pdf
    • http://455-bonus.site/uploads/1/3/0/3/130379604/9758992.pdf
    • http://huurschuur.nl/uploads/1/3/0/2/130272340/9741065.pdf
    • http://root.hasaicogroup.com/uploads/1/3/0/5/130545194/6462890.pdf
    • http://www.eccevideos.com/uploads/1/3/0/6/130621582/jetuf-nelologame-naxegovej.pdf
    • http://www.tritonsunited.org/uploads/1/3/0/7/130739660/6719646.pdf
    • http://kartell.com.vn/uploads/1/3/0/5/130540182/rexatepot.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_off0000b6b4.bin
5819089bfc5947661f97d85eda2781d60acb8160d5e4361b2f88c8a9edc18ab4
pdf-font-stream PDF embedded font (sfnt) at offset 0xB6B4 8236 bytes
font_01_sfnt_off0000d68f.bin
1723f1ced37cc89d69e30f3df6281c5e5fb8989544fd4587aa75b00c91af2fd0
pdf-font-stream PDF embedded font (sfnt) at offset 0xD68F 1388 bytes
font_02_sfnt_off0000ddf5.bin
d757ec0629ee71e2820ae8b49ca200906f1ea2efd8910b78c0850aa65009d153
pdf-font-stream PDF embedded font (sfnt) at offset 0xDDF5 18764 bytes