Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb57e45a002ebe45…

MALICIOUS

PDF

69.7 KB Created: 2020-07-29 16:50:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 454fe8089f373d2bb61e490289966962 SHA-1: 662c274f2a60d93703f5ea60c97cee1e776a9bba SHA-256: fb57e45a002ebe45c7542df25f28ae4eff968bae7d10a38b9c44541c2de14122
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on Shopify and other domains, forming a link farm. One of the primary links directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Makalah cephalgia pdf', suggesting a lure to disguise the malicious intent. No scripts were extracted from this sample.

Heuristics 3

  • 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.
  • 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.cc/pify?keyword=makalah+cephalgia+pdf
    • http://files.mrcoopersclass.com/uploads/1/3/1/4/131483108/zezenigimu_jukexowosam.pdf
    • http://files.bipolarplan.com/uploads/1/3/0/7/130739835/6122091.pdf
    • http://files.loveandmascara.com/uploads/1/3/1/6/131637529/doguloxim_sogedosazev_miwumudukuj_zedikibu.pdf
    • http://files.northvanmucisacademy.com/uploads/1/3/0/7/130740385/jigixatifaj_melimogefa.pdf
    • http://files.mobilizingdisciples.com/uploads/1/3/1/6/131637679/b24ed95d2169.pdf
    • https://cdn.shopify.com/s/files/1/0435/6653/0728/files/50068520201.pdf
    • https://cdn.shopify.com/s/files/1/0430/7573/1616/files/nesejazozolesijemewopoje.pdf
    • https://cdn.shopify.com/s/files/1/0430/1442/2677/files/6603614005.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49726552648.pdf
    • https://cdn.shopify.com/s/files/1/0429/1022/0447/files/tefoxobupowotodokerebo.pdf
    • https://cdn.shopify.com/s/files/1/0431/6237/0210/files/57069568529.pdf
    • https://cdn.shopify.com/s/files/1/0432/5956/0086/files/kejuxil.pdf
    • https://cdn.shopify.com/s/files/1/0433/7188/8803/files/paguxetogawe.pdf
    • https://cdn.shopify.com/s/files/1/0429/8476/7641/files/linurarigokokina.pdf
    • https://cdn.shopify.com/s/files/1/0431/1249/7312/files/zijulit.pdf
    • https://cdn.shopify.com/s/files/1/0432/6775/2100/files/vonewemuvikaperabivami.pdf
    • https://cdn.shopify.com/s/files/1/0433/6641/6534/files/favamizitugiranusodekizax.pdf
    • https://cdn.shopify.com/s/files/1/0430/9434/3841/files/67117335780.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_off0000cc5b.bin
eda50255330599c839b80901e03012a01010193dc4b13df044ccbe36639b1e4f
pdf-font-stream PDF embedded font (sfnt) at offset 0xCC5B 4704 bytes
font_01_sfnt_off0000dc62.bin
cfd52d2a705ffd174410d544dd282c3ea2e50226d99ad3742c1d86d89b1a26d0
pdf-font-stream PDF embedded font (sfnt) at offset 0xDC62 14560 bytes