Malicious PDF — malware analysis report

Static analysis result for SHA-256 59957da1432f3002…

MALICIOUS

PDF

37.1 KB Created: 2020-08-11 03:14:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 268a26576d6d5e71a7b1719cb287c864 SHA-1: a9a067b8e9c9b338067674e80f7121d96b09a671 SHA-256: 59957da1432f3002215fd1bfbf858f1f4ddac5df4ebfe5e0438b76a0520291b2
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file was flagged as malicious by an ML classifier and contains a critical heuristic indicating it links to a known malicious redirector. The document body and embedded artifacts suggest a lure related to 'illuminatiam free copy pdf', likely a social engineering tactic to entice users to click the malicious links. The presence of numerous external PDF links, many pointing to benign Shopify domains but others to unknown hosts, further supports the attack pattern of a link farm designed to obscure the ultimate malicious destination via the ttraff.cc redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=illuminatiam+free+copy+pdf
    • http://files.apachetrailchapter.org/uploads/1/3/2/6/132695428/effbe98a9b.pdf
    • http://files.mightygoodentertainment.com/uploads/1/3/1/4/131454373/2771002.pdf
    • http://files.newyorkacupuncturecenter.com/uploads/1/3/0/8/130874480/1264916.pdf
    • http://files.gamecreek.com/uploads/1/3/2/6/132681824/nijovogexafej.pdf
    • http://tiwaw.everythingalcoholink.com/uploads/1/3/0/7/130775971/libuvip-sejuzunepapago-gulonolomeguru-denafolokejoxo.pdf
    • https://cdn.shopify.com/s/files/1/0430/8631/5684/files/islamic_banking_in_bahrain.pdf
    • https://cdn.shopify.com/s/files/1/0434/0174/0439/files/cs_go_crosshair_commands.pdf
    • https://cdn.shopify.com/s/files/1/0434/6835/7796/files/81896888446.pdf
    • https://cdn.shopify.com/s/files/1/0431/6689/2191/files/81035465594.pdf
    • https://cdn.shopify.com/s/files/1/0429/7749/3146/files/fodibiwenegigawimowamigaw.pdf
    • https://cdn.shopify.com/s/files/1/0435/5896/1320/files/luwalixenanofego.pdf
    • https://cdn.shopify.com/s/files/1/0427/6961/2966/files/kigimimavelukebabe.pdf
    • https://cdn.shopify.com/s/files/1/0438/2153/1293/files/convert_base64_encoded_string_to_c.pdf
    • https://cdn.shopify.com/s/files/1/0433/2912/6550/files/31269148438.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tugomedimugatusigoxafif.pdf
    • https://cdn.shopify.com/s/files/1/0427/5775/0951/files/acute_decompensated_heart_failure.pdf
    • https://cdn.shopify.com/s/files/1/0430/8942/8637/files/anita_blake_micah.pdf
    • https://cdn.shopify.com/s/files/1/0431/5434/2042/files/webmail_rci_rutgers_edu.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/
    • https://cdn.shopify.com/s/files/1/0431/5434/2042/files/webmail_r

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000064f9.bin
28fc4972761122fd2006cada93493ebe68c70a4b405b811e8a3a951f80d4e074
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x64F9 10172 bytes
font_00_sfnt_off00005384.bin
aea64213100027f7a4d91e8a6a4a5910f7f4dd5d6557b453889c4b8aff6f621a
pdf-font-stream PDF embedded font (sfnt) at offset 0x5384 5160 bytes