Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccfa67efc1d45e10…

MALICIOUS

PDF

60.8 KB Created: 2020-08-10 06:49:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c2e691551a8f3c94dc50137f4bcfe753 SHA-1: fcd453d5493feb1a53d80718ad42e7cdb9dd1618 SHA-256: ccfa67efc1d45e1097243ccffc3c73f599b52b26919bc4ca2e09ce306456a0fe
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a malicious redirector link disguised as a document download. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the link leads to known malicious infrastructure. The embedded URL points to ttraff.com, which is likely used to obscure the final destination. The document body contains obfuscated text and the target URL, suggesting a social engineering lure.

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=malaria+life+cycle+pdf+download
    • http://kirufu.mallorybyers.com/uploads/1/3/0/7/130739415/8789a913b.pdf
    • http://files.pecd.us/uploads/1/3/0/7/130775953/d603d3f231013.pdf
    • http://files.mideastchef.com/uploads/1/3/1/8/131856545/16f0fe5c6adbd4.pdf
    • http://files.votect2016.org/uploads/1/3/1/6/131606366/pazul_siwobuf_xebixonuwimavu.pdf
    • https://cdn.shopify.com/s/files/1/0431/8006/4936/files/12113408326.pdf
    • https://cdn.shopify.com/s/files/1/0434/6285/2761/files/jejatujonoxumavupolutuse.pdf
    • https://cdn.shopify.com/s/files/1/0427/8131/1132/files/pes_2013_creck.pdf
    • https://cdn.shopify.com/s/files/1/0429/3738/5123/files/wozaridutad.pdf
    • https://cdn.shopify.com/s/files/1/0434/6436/0100/files/pifinevumuxazewomasu.pdf
    • https://cdn.shopify.com/s/files/1/0431/6299/2795/files/lugekifitoke.pdf
    • https://cdn.shopify.com/s/files/1/0430/5167/9898/files/irritable_bowel_syndrome.pdf
    • https://cdn.shopify.com/s/files/1/0434/4083/2678/files/baxuzar.pdf
    • https://cdn.shopify.com/s/files/1/0430/3932/6365/files/the_economist_january_12th_2020_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/73385690539.pdf
    • https://cdn.shopify.com/s/files/1/0427/3831/9527/files/64615036230.pdf
    • https://cdn.shopify.com/s/files/1/0438/6720/9883/files/sing_a_christmas_carol_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0434/4122/5880/files/bedugixogizakaziwotimovu.pdf
    • https://cdn.shopify.com/s/files/1/0433/6379/5096/files/zafezenakiden.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
font_00_sfnt_off0000a16a.bin
5f4ef067a148cce9b89f5d48506eb800ffbba825ca0d7f94369b378d1bda32db
pdf-font-stream PDF embedded font (sfnt) at offset 0xA16A 4880 bytes
font_01_sfnt_off0000b21c.bin
b1d04561449515a2d85ee795659e2415c1d90e64cdc1e084fa9cb1f08eda3e36
pdf-font-stream PDF embedded font (sfnt) at offset 0xB21C 11296 bytes
font_02_sfnt_off0000d767.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0xD767 4324 bytes