Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a5d10a345ceda42…

MALICIOUS

PDF

54.0 KB Created: 2020-08-18 23:14:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8ee956f564809da0048e72516955b74c SHA-1: c613b4e9ddcf72e2d7950262dfad46c6fd23c81e SHA-256: 3a5d10a345ceda42b14f56d057402345ea357f9a166fcd8bf7f27e34bc9236bd
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, disguised as a game guide. This suggests a phishing or malware distribution attempt. The document also contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of SEO link farm abuse to obscure the final malicious destination. No scripts were extracted from this sample.

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=barathrum+dota+1+item+guide
    • http://files.paddleboardhouse.com/uploads/1/3/1/4/131453588/pidib.pdf
    • http://files.jimhockenhull.com/uploads/1/3/2/7/132740700/wajudaduzaxegemos.pdf
    • http://files.destinylifenetwork.org/uploads/1/3/1/4/131438018/3554313.pdf
    • https://cdn.shopify.com/s/files/1/0433/4020/2142/files/94455318041.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30740110423.pdf
    • https://cdn.shopify.com/s/files/1/0430/7235/6505/files/holt_mcdougal_sociology_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0439/1780/3675/files/35088821814.pdf
    • https://cdn.shopify.com/s/files/1/0435/2039/3375/files/coursera_learning_how_to_learn.pdf
    • https://cdn.shopify.com/s/files/1/0437/1359/3499/files/accuweather_warren_vt.pdf
    • https://cdn.shopify.com/s/files/1/0440/8855/7718/files/clinical_exercise_physiology_book.pdf
    • https://cdn.shopify.com/s/files/1/0435/6826/7423/files/asperger_s_syndrome_for_dummies.pdf
    • https://cdn.shopify.com/s/files/1/0428/1214/5823/files/jenunupukojexozazezited.pdf
    • https://cdn.shopify.com/s/files/1/0429/6772/8279/files/88282145903.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/79894841610.pdf
    • https://cdn.shopify.com/s/files/1/0430/9480/2583/files/gukumikufusu.pdf
    • https://cdn.shopify.com/s/files/1/0430/4519/1841/files/2209499886.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_off00008512.bin
2773defa7be75ab3aed05cf07ee2d7c82dbc56d51c0f9442b6d03cc66ebadcfa
pdf-font-stream PDF embedded font (sfnt) at offset 0x8512 4904 bytes
font_01_sfnt_off000095ca.bin
c2e99e85edae80f4f0e9a8967148bc645a724075b262f26ac464098e7afeff63
pdf-font-stream PDF embedded font (sfnt) at offset 0x95CA 11464 bytes
font_02_sfnt_off0000bb6c.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0xBB6C 4324 bytes