Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e7e8e90c3cede05…

MALICIOUS

PDF

66.3 KB Created: 2020-08-10 01:05:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a190a4d757d79cb141fe1fbce31e0dd8 SHA-1: bbcae380aaa2702c7936722625285396c552d65f SHA-256: 8e7e8e90c3cede052344ff3206552a399d96bae4193db93a2546aa7d4f5c51ae
150 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The primary malicious URL, https://ttraff.com/pify?keyword=namaz+e+janaza+ki+dua+pdf, is likely used to redirect users to a phishing or malware distribution site. The document body contains garbled text along with several embedded URLs, reinforcing the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/pify?keyword=namaz+e+janaza+ki+dua+pdf
    • http://files.p4patuva.com/uploads/1/3/0/7/130776089/notemofejavofixuburu.pdf
    • http://files.treasurelakesfish.com/uploads/1/3/0/8/130813736/31b50f59.pdf
    • http://minux.lakeshorequiltcompany.com/uploads/1/3/2/3/132302780/1811473.pdf
    • http://dezelagu.megastarphilippines.com/uploads/1/3/1/4/131407469/4784184.pdf
    • http://files.vafercapital.com/uploads/1/3/1/4/131406068/xukipikakivizural.pdf
    • https://cdn.shopify.com/s/files/1/0430/2965/9797/files/sojuf.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/munuzajutajamarigeregutoz.pdf
    • https://cdn.shopify.com/s/files/1/0437/7106/8577/files/vinirowenojawufisitob.pdf
    • https://cdn.shopify.com/s/files/1/0444/5346/2183/files/convert_to_black_and_white.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31688109027.pdf
    • https://cdn.shopify.com/s/files/1/0447/9349/5709/files/suwasogu.pdf
    • https://cdn.shopify.com/s/files/1/0448/3258/7936/files/typhoid_fever_cdc.pdf
    • https://cdn.shopify.com/s/files/1/0432/2865/9869/files/wazepe.pdf
    • https://cdn.shopify.com/s/files/1/0435/4614/9023/files/malosulorafonokodobogi.pdf
    • https://cdn.shopify.com/s/files/1/0440/9311/2472/files/wotagosugesovapiwoxa.pdf
    • https://cdn.shopify.com/s/files/1/0428/3462/4668/files/anamnesis_psicologica_definicion.pdf
    • https://cdn.shopify.com/s/files/1/0433/7899/9446/files/22545978586.pdf
    • https://cdn.shopify.com/s/files/1/0436/0785/1171/files/mopijoxidatuvuw.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
stream_005_off0000c82e.bin
a1eb4e8645db7cddb220ae31159052dd77285316ea8ee6c5e6c66f4e2cbd4127
decompressed-pdf-stream PDF FlateDecoded stream at offset 0xC82E 30140 bytes
font_00_sfnt_off0000868a.bin
0fc0ffa283e38355a8f7237f17cbdaf65f6d97fa568dcceec612e0a67c12938e
pdf-font-stream PDF embedded font (sfnt) at offset 0x868A 5040 bytes
font_01_sfnt_off000097bb.bin
680ba27be67bdaf1f200517bdb6fbac96dfc4cae0f677d83b35d808c36252091
pdf-font-stream PDF embedded font (sfnt) at offset 0x97BB 15596 bytes