Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a9607a4043955c3…

MALICIOUS

PDF

67.8 KB Created: 2020-08-19 13:17:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43bf0498162dd131f874075ad156595e SHA-1: e8b4a1f1a9a0dc643526dc08081261bb45693952 SHA-256: 9a9607a4043955c3e8aafc269eb23e2a161aa08094e1062cb68679fa6e4f038c
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, with a critical heuristic identifying it as a PDF link farm. One of these links, https://ttraff.cc/pify?keyword=sentence+formation+of+campaign, is flagged as a known malicious redirector. This suggests the document's primary purpose is to redirect users to malicious websites, likely for phishing or malware distribution.

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=sentence+formation+of+campaign
    • http://files.cascadiannomads.com/uploads/1/3/2/7/132740865/naxajibebudebazu.pdf
    • http://pelane.mychoice411.com/uploads/1/3/1/8/131872225/ee53cefa93547.pdf
    • http://files.kaimalamarina.org/uploads/1/3/0/8/130815213/tenotaxabujoge.pdf
    • http://dijezite.thefiveelementsretreats.co.uk/uploads/1/3/1/8/131858530/0e63e6b6699e.pdf
    • http://files.northvanmucisacademy.com/uploads/1/3/2/8/132814166/701e1379.pdf
    • https://cdn.shopify.com/s/files/1/0440/5588/8022/files/306293594.pdf
    • https://cdn.shopify.com/s/files/1/0430/9578/5629/files/serivuxepe.pdf
    • https://cdn.shopify.com/s/files/1/0440/0644/1110/files/chronic_charcot_deformity.pdf
    • https://cdn.shopify.com/s/files/1/0431/6676/1120/files/putilalitate.pdf
    • https://cdn.shopify.com/s/files/1/0428/4694/5436/files/lafajep.pdf
    • https://cdn.shopify.com/s/files/1/0430/7730/4484/files/61255780520.pdf
    • https://cdn.shopify.com/s/files/1/0430/2936/4889/files/kukaludizowewijojififu.pdf
    • https://cdn.shopify.com/s/files/1/0436/1060/3677/files/kutur.pdf
    • https://cdn.shopify.com/s/files/1/0437/1775/5034/files/autocab_ghost_user_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/5729/9097/files/tiwako.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
stream_003_off00006c92.bin
dbb4a8b0e7af5cf8272bbaad3aadea34878c9ce453d164dd72f74cde3cc7a4ac		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x6C92 13252 bytes
font_01_sfnt_off0000977f.bin
e2595a68fac825e322a1d402190d819d93c6282cce8903502c912762bb40910b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x977F 5228 bytes
font_02_sfnt_off0000a923.bin
a8cb3a8f890e97dc79c9534bb540e98a1da1f0f3c57b17bf54bed01d4c149056		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA923 9796 bytes
font_03_sfnt_off0000c493.bin
a7e518393553cdd91cb100861ef540ce6abc6b3c1efd1d2a14e1954d9989f5f5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC493 10556 bytes
font_04_sfnt_off0000e779.bin
ce0037fa5b1c6aab7a654be581d1f9b537bfac1dddb25742349f61dfa6692790		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE779 17476 bytes

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