Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d6251faa2184576…

MALICIOUS

PDF

44.6 KB Created: 2020-08-03 15:36:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cd60e046f0578f121ae94a38b05c5ec0 SHA-1: bf7f6aa4406c3fe80616f8cde30f73485e9662f4 SHA-256: 8d6251faa2184576d9ba681fe035ea93afe6f3e0d08814387c150dd7f7ed2037
140 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Barclays premier travel plus pack pdf' and a URL that aligns with the malicious redirector heuristic. The presence of a link farm and a callback lure suggests a phishing or scam attempt designed to lead the user to malicious infrastructure.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=barclays+premier+travel+plus+pack+pdf
    • http://kuvoris.ericaparrinelloblog.com/uploads/1/3/1/4/131438405/rokamotufit_wopobog_jumuriwoji_nuratixefafof.pdf
    • http://files.goodnews4thecounty.com/uploads/1/3/0/7/130740591/89c27354dbc523.pdf
    • http://files.aodex.net/uploads/1/3/1/4/131408798/fazefag.pdf
    • https://cdn.shopify.com/s/files/1/0434/8923/1000/files/winazin.pdf
    • https://cdn.shopify.com/s/files/1/0431/1446/3394/files/45945385948.pdf
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/64486562279.pdf
    • https://cdn.shopify.com/s/files/1/0429/3056/9382/files/tujibakajagupitiwemegojof.pdf
    • https://cdn.shopify.com/s/files/1/0432/8446/3784/files/89929772162.pdf
    • https://cdn.shopify.com/s/files/1/0430/1658/5379/files/52798981234.pdf
    • https://cdn.shopify.com/s/files/1/0434/2520/2325/files/nakuferof.pdf
    • https://cdn.shopify.com/s/files/1/0433/0645/1094/files/68429699659.pdf
    • https://cdn.shopify.com/s/files/1/0433/5442/3445/files/demuxebuz.pdf
    • https://cdn.shopify.com/s/files/1/0431/5339/1765/files/sigokufisaximajafuv.pdf
    • https://cdn.shopify.com/s/files/1/0429/5727/5299/files/32943100392.pdf
    • https://cdn.shopify.com/s/files/1/0432/7899/1520/files/levokavobudolituvadakis.pdf
    • https://cdn.shopify.com/s/files/1/0435/4480/5525/files/valinafeniv.pdf
    • https://cdn.shopify.com/s/files/1/0430/8788/8551/files/31774950703.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_off000062fd.bin
4df8677359a2dea83bec3876d343a0caad5bec74588cb10e22d9658a8a7fbd3b
pdf-font-stream PDF embedded font (sfnt) at offset 0x62FD 5240 bytes
font_01_sfnt_off000074ea.bin
94926175423d9d8b9fd8007b92ebb4346b620c310833c33c8564f87a9e520953
pdf-font-stream PDF embedded font (sfnt) at offset 0x74EA 9892 bytes
font_02_sfnt_off000096af.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x96AF 4324 bytes