Malicious PDF — malware analysis report

Static analysis result for SHA-256 48c8a6046206664a…

MALICIOUS

PDF

50.7 KB Created: 2020-08-20 13:05:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2e7de61d42c914d24c9acd50cd2b54e7 SHA-1: 37ea3f135d74f20e678334872b8e72a088492422 SHA-256: 48c8a6046206664ab711c1798ed8cb0882d97e55a3385d8ab23244682a9b0d1f
170 Risk Score

Malware Insights

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

The PDF document contains a malicious redirector link disguised as a download for 'Autocad 2010 xforce'. This link points to ttraff.com, a known malicious redirector. The document also exhibits characteristics of a link farm, with numerous embedded URLs, many of which are hosted on Shopify. The presence of a 'Password-protected archive handoff' heuristic suggests a common tactic to bypass gateway security. No scripts were extracted, limiting the analysis of direct execution capabilities.

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=autocad+2010+xforce
    • http://veruzumi.harveycornphotography.com/uploads/1/3/1/4/131409236/1532618.pdf
    • http://rosisuzam.monicalrosen.com/uploads/1/3/0/7/130775386/e6bc684.pdf
    • http://files.stmarklutheranroseville.org/uploads/1/3/1/6/131606668/netiluxesitez-lowulixufepunu-lopekiwit-dibupagu.pdf
    • https://cdn.shopify.com/s/files/1/0438/4745/0789/files/urban_air_pollution_project.pdf
    • https://cdn.shopify.com/s/files/1/0430/2353/2195/files/blender_knife_project.pdf
    • https://cdn.shopify.com/s/files/1/0432/4638/7367/files/javemizimedewamisuga.pdf
    • https://cdn.shopify.com/s/files/1/0437/5491/3943/files/lapolawirasawotima.pdf
    • https://cdn.shopify.com/s/files/1/0430/8510/3255/files/72893505987.pdf
    • https://cdn.shopify.com/s/files/1/0433/5396/4702/files/westworld_pilot_script.pdf
    • https://cdn.shopify.com/s/files/1/0434/6000/1957/files/kisebusutetogosu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5932/2773/files/26857269964.pdf
    • https://cdn.shopify.com/s/files/1/0431/8127/7352/files/79587262457.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_off000069ee.bin
cbc0b36af6ea9ca85d79a3225deab408597c2adf9263e251c034fd03a2f8758d
pdf-font-stream PDF embedded font (sfnt) at offset 0x69EE 8292 bytes
font_01_sfnt_off000084ac.bin
ac3b401b4e25884bad14d0fa4db8fed3edf67129171f8dc933b50a1a320b9591
pdf-font-stream PDF embedded font (sfnt) at offset 0x84AC 5188 bytes
font_02_sfnt_off00009664.bin
6294651e1ecaead531aeca8e0cf4e3a9fe4847a2c77cb6e62b43aeab3a883067
pdf-font-stream PDF embedded font (sfnt) at offset 0x9664 12212 bytes