Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4ea374da12680bc…

MALICIOUS

PDF

54.0 KB Created: 2020-08-05 04:46:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5cbeae71aed1b0d25820a504bf9f7e32 SHA-1: 5edce34e8868552c90dfb074cdf4cc238187ada3 SHA-256: a4ea374da12680bc1da1beff7e6fbadef321e2e653815ff802fb98c1d8917ecd
140 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though partially corrupted, suggests a lure related to a 'butchery business plan', aiming to trick users into clicking the malicious URL. The presence of a large number of external PDF links further indicates a link farm or SEO manipulation tactic, common in phishing and scam operations.

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=butchery+business+plan+south+africa+pdf
    • http://files.harpmelodiesbymaddie.com/uploads/1/3/1/6/131636972/sovikival.pdf
    • http://gisamitin.moparmuscleofcentralpa.com/uploads/1/3/2/6/132681556/misimanuw-votageb-turovuxiregime.pdf
    • http://files.thyme4lunchcafe.com/uploads/1/3/1/3/131378952/muperajak_jegenorafe_zekewamaf_kosija.pdf
    • http://files.portlandtouchrugby.com/uploads/1/3/0/7/130775400/xisijabujoxogeb-warik.pdf
    • https://cdn.shopify.com/s/files/1/0446/8968/6681/files/binding_of_isaac_rusted_key.pdf
    • https://cdn.shopify.com/s/files/1/0429/2942/2499/files/gatalepem.pdf
    • https://cdn.shopify.com/s/files/1/0431/1249/7312/files/pepipi.pdf
    • https://cdn.shopify.com/s/files/1/0432/2571/0750/files/82526960142.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/38935964995.pdf
    • https://cdn.shopify.com/s/files/1/0430/3015/1330/files/sedaju.pdf
    • https://cdn.shopify.com/s/files/1/0450/3266/9334/files/understanding_how_to_fight_the_good_fight_of_faith.pdf
    • https://cdn.shopify.com/s/files/1/0429/7841/0655/files/pepale.pdf
    • https://cdn.shopify.com/s/files/1/0430/0832/7829/files/pivivelaposorijotopojivoj.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/669297692.pdf
    • https://cdn.shopify.com/s/files/1/0436/3767/0041/files/radosejir.pdf
    • https://cdn.shopify.com/s/files/1/0432/5651/2676/files/85489534577.pdf
    • https://cdn.shopify.com/s/files/1/0429/9345/1159/files/nejowege.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_off000084a8.bin
6da7b510e2a11e1d87e291efd3da96d63274624a9bd712f0f59ca62130eaa4a8
pdf-font-stream PDF embedded font (sfnt) at offset 0x84A8 5416 bytes
font_01_sfnt_off0000970b.bin
db7135217fd63e85dc0e52ff9ee79c77a6ab9b7a831582e089bd17d4718f15e0
pdf-font-stream PDF embedded font (sfnt) at offset 0x970B 10900 bytes
font_02_sfnt_off0000bc32.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0xBC32 4324 bytes