Malicious PDF — malware analysis report

Static analysis result for SHA-256 e595f127b1c30f27…

MALICIOUS

PDF

67.2 KB Created: 2020-09-11 09:43:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0268bbfcff0d8cf74c8e6e745ddd1117 SHA-1: bf85a596bb17c688dc64fc96dc3b320ebaf4509a SHA-256: e595f127b1c30f27199747b3d0eaa17ea7f618513bf4bb2c851cc5a65e904ca1
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.cc, which is designed to lead users to malicious content. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. The presence of numerous other PDF links, many hosted on Shopify, indicates a potential link farm or SEO poisoning attempt to mask the malicious redirector. No scripts were extracted, and the PDF structure itself does not indicate specific exploit techniques beyond redirection.

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.cc/pify?keyword=interstellar+stay+piano+sheet+music
    • http://files.highheartcrystalhealing.com/uploads/1/3/1/3/131398533/63da3134dc.pdf
    • http://jotaf.pianoincolor.com/uploads/1/3/1/4/131408738/nedesekoxazuzojek.pdf
    • http://files.raisingtheskirt.com/uploads/1/3/0/7/130776619/xakununa-xevesuza-gamopabuju.pdf
    • http://files.katesclosetconsignment.com/uploads/1/3/1/3/131381021/933922937fcb410.pdf
    • http://files.weymedia.net/uploads/1/3/0/7/130776110/5391857.pdf
    • http://ninuxo.stallionwood.com/uploads/1/3/1/8/131871505/japaz.pdf
    • http://files.nimatennis.com.au/uploads/1/3/1/3/131384293/nopurujepo.pdf
    • http://files.jovansjourney.com/uploads/1/3/0/7/130738955/vabuzijib_tufem.pdf
    • https://cdn.shopify.com/s/files/1/0429/2945/5263/files/59027720270.pdf
    • https://cdn.shopify.com/s/files/1/0427/8091/7926/files/wow_expulsom_farming_guide.pdf
    • https://cdn.shopify.com/s/files/1/0430/3598/4029/files/adwords_fundamentals.pdf
    • https://cdn.shopify.com/s/files/1/0434/0737/6542/files/south_park_asspen.pdf
    • https://cdn.shopify.com/s/files/1/0432/3033/1039/files/bevidozolomutumurusudiga.pdf
    • https://static.usrfiles.com/ugd/90661f_08c7f0cbaa65415eb4cd5c33d9d83df8.pdf
    • https://static.usrfiles.com/ugd/b8c837_12fa154c89db44c18fc1d7407f21dbf2.pdf
    • https://static.usrfiles.com/ugd/97634b_e36deedc528f4db0a7a2dcf1330263e0.pdf
    • https://static.usrfiles.com/ugd/98857b_99c2a9836be047d2b3c745370fa98045.pdf
    • https://static.usrfiles.com/ugd/1decf9_3c18d989ae994b31bebb0450930a2df0.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a80f.bin
0daf3b5307a99510ea369cb3029095d798879fc0d5edb07375ed6e74217ad3dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA80F 5096 bytes
font_01_sfnt_off0000b92d.bin
f3e026c142d6e59820cb9e1d83ca527e771683b69fa7af81ffef58b476633888		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB92D 2348 bytes
font_02_sfnt_off0000c353.bin
09817f20742a4ad3d9919d739fa3813163f4a0686a41cb09621e641ba0a65f96		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC353 8796 bytes
font_03_sfnt_off0000e152.bin
d73edf52f23ab6dc1af324a3853448b7f96034ffaa53e7749a836b2f1744f8e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE152 3676 bytes
font_04_sfnt_off0000ee41.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEE41 4324 bytes

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