Malicious PDF — malware analysis report

Static analysis result for SHA-256 f642cc08415ebeb8…

MALICIOUS

PDF

43.4 KB Created: 2020-08-22 03:03:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b08e5cb38a881725af34ab2785d50631 SHA-1: 0fc72fd7812a0f8e411ec32bbb3a9a4f4290441e SHA-256: f642cc08415ebeb88be0b185b767f4bbf64b039bb555823ea4b43547fa6b573e
128 Risk Score

Malware Insights

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

The PDF file contains embedded links that lead to a known malicious redirector, ttraff.com. The document body text, though heavily obfuscated, includes language suggesting a financial lure ('Balance sheet reconciliation statement'). The presence of numerous external PDF links, many hosted on cdn.shopify.com, indicates a link farm designed to obscure the ultimate destination. The primary malicious link is https://ttraff.com/pify?keyword=balance+sheet+reconciliation+statement, which is likely used to redirect the user to a further malicious site.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=balance+sheet+reconciliation+statement
    • http://pitafas.northwalestreeservices.com/uploads/1/3/1/3/131380505/xabepululedu-vusozafetu.pdf
    • http://files.spiritofvenice.info/uploads/1/3/1/8/131857304/denekalevaxago_woxodezazuxepir_wisavagedesevam.pdf
    • http://files.balikowskidentallab.com/uploads/1/3/0/7/130739528/3a1023fb243b5.pdf
    • http://goker.aprilscottphoto.com/uploads/1/3/0/7/130739640/lidifi.pdf
    • https://cdn.shopify.com/s/files/1/0433/5930/5880/files/51450801936.pdf
    • https://cdn.shopify.com/s/files/1/0440/0611/3430/files/guxejobuvadobakekilo.pdf
    • https://cdn.shopify.com/s/files/1/0435/8501/1871/files/cemu_title_keys.pdf
    • https://cdn.shopify.com/s/files/1/0434/0432/9125/files/faxopozavo.pdf
    • https://cdn.shopify.com/s/files/1/0434/8359/4917/files/paxugosidegol.pdf
    • https://cdn.shopify.com/s/files/1/0428/8466/1407/files/98677607961.pdf
    • https://cdn.shopify.com/s/files/1/0432/7813/9556/files/5206650196.pdf
    • https://cdn.shopify.com/s/files/1/0434/0501/7253/files/honkai_impact_3_hephaestus_guide.pdf
    • https://cdn.shopify.com/s/files/1/0430/4620/7650/files/38594430948.pdf
    • https://cdn.shopify.com/s/files/1/0448/3439/0178/files/english_grammar_exercises_tenses_mixed_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0437/5596/2522/files/xoxodizopagekali.pdf
    • https://cdn.shopify.com/s/files/1/0433/1179/2286/files/zigikimifolaladega.pdf
    • https://cdn.shopify.com/s/files/1/0434/1334/0312/files/47681155872.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c53.bin
727b90f151bd109d6b5e151b7cd67a647081055cf6a56f4dcbf18b3622635edc
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C53 5088 bytes
font_01_sfnt_off00007d67.bin
a3b99743c2685fde0c3655b0d1bd6007cde73dec828967dfb1a42f21274a9504
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D67 10356 bytes