Malicious PDF — malware analysis report

Static analysis result for SHA-256 b057f7b1fcba399d…

MALICIOUS

PDF

37.5 KB Created: 2020-08-21 21:01:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ba186a4e909eb373764b7aaa76acd92e SHA-1: ac3ad58c268cf5066c14011cc56f8a3e3992e4c8 SHA-256: b057f7b1fcba399d3d67eea64c3aa5c5daa8f49262c6babaceb03ca5606ed455
128 Risk Score

Malware Insights

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

The PDF file contains a prominent link that redirects to a malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though partially corrupted, contains text suggesting a lure for 'Manorama epaper today free'. The PDF also hosts a large number of external links, many pointing to Shopify domains, as indicated by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or distribution mechanism.

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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 https://ttraff.com/pify?keyword=manorama+epaper+today+free
    • http://files.fennyfaber.com/uploads/1/3/1/8/131871864/lufizuzagote-modilazuv.pdf
    • http://files.kingdommovementglobal.org/uploads/1/3/0/7/130739616/939609acd0f.pdf
    • http://files.asliagirbas.com/uploads/1/3/0/7/130776841/07f27bfa0f9527.pdf
    • http://sipob.shophhbstore.com/uploads/1/3/2/6/132696398/godexewubiniwe_loviwosipudanu.pdf
    • http://files.wightmantennis.org/uploads/1/3/2/6/132681144/e09120ce.pdf
    • https://cdn.shopify.com/s/files/1/0437/2407/9254/files/vozuvitez.pdf
    • https://cdn.shopify.com/s/files/1/0430/3156/0354/files/amman_songs_album_free.pdf
    • https://cdn.shopify.com/s/files/1/0428/8777/4374/files/auditory_verbal_therapy_techniques.pdf
    • https://cdn.shopify.com/s/files/1/0432/0513/2456/files/type_1_diabetes_mellitus.pdf
    • https://cdn.shopify.com/s/files/1/0428/0313/4627/files/vogikatoremavafaj.pdf
    • https://cdn.shopify.com/s/files/1/0436/0539/3571/files/download_mysql_workbench.pdf
    • https://cdn.shopify.com/s/files/1/0433/4115/2421/files/82252805052.pdf
    • https://cdn.shopify.com/s/files/1/0431/9870/9917/files/the_demon_haunted_world.pdf
    • https://cdn.shopify.com/s/files/1/0435/3182/9412/files/88704457564.pdf
    • https://cdn.shopify.com/s/files/1/0434/4617/3852/files/jubenimegafevotoz.pdf
    • https://cdn.shopify.com/s/files/1/0436/7505/8329/files/grade_11_physics_textbook_ontario.pdf
    • https://cdn.shopify.com/s/files/1/0435/7698/3713/files/74513922405.pdf
    • https://cdn.shopify.com/s/files/1/0437/2509/5062/files/tunivumub.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
font_00_sfnt_off0000538a.bin
176b9376f41ae15beb525dab544467fe799dbc9c2e4cdb51c6c0883ada82caa7
pdf-font-stream PDF embedded font (sfnt) at offset 0x538A 5084 bytes
font_01_sfnt_off000064cb.bin
edc07374ad346c10e53383d42899661ae92de1ab225147331400c1d3b7c98b01
pdf-font-stream PDF embedded font (sfnt) at offset 0x64CB 10596 bytes