Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9bf229c7021c185…

MALICIOUS

PDF

74.7 KB Created: 2021-03-10 08:25:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b0030bcd99e1c32291666ec3162132a SHA-1: 5fe7948afc749d3b7c6471f1c580b23db03d5a81 SHA-256: f9bf229c7021c18534b713fb27dfc2734bac26166951c9cda5e59cbb0325131a
76 Risk Score

Malware Insights

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

The sample was identified as malicious by an ML classifier and exhibits characteristics of an advance-fee scam, including lottery and parcel delivery lures. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site or download further content. No scripts were extracted, but the presence of the advance-fee scam lure and external URLs strongly suggests a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://golowaki.ru/wix?keyword=downtown+mafia+cheats+iphone
    • https://static.s123-cdn-static.com/uploads/4479673/normal_600639771c01b.pdf
    • http://gisoboxizaza.mygamesonline.org/35782031399.pdf
    • https://static.s123-cdn-static.com/uploads/4443595/normal_5ffb147d431a9.pdf
    • http://tesekal.mygamesonline.org/mini_cooper_dealer_near_me.pdf
    • https://cdn-cms.f-static.net/uploads/4454277/normal_600ce14ebf8bd.pdf
    • http://dipazekonowa.mypressonline.com/mozaxasezaruvakozuropude.pdf
    • http://freshka.fun/tulukegekugesogoxuwi51ng5.pdf
    • http://mixutadumekaje.mypressonline.com/how_to_charge_3000mah_nimh_battery.pdf
    • https://cdn-cms.f-static.net/uploads/4412780/normal_603555275a855.pdf
    • https://cdn-cms.f-static.net/uploads/4470835/normal_5fd63f4030dc5.pdf
    • https://cdn-cms.f-static.net/uploads/4451210/normal_6034f5a6c7087.pdf
    • http://nibakelenixezas.getenjoyment.net/gixibagaxesalupudorerov.pdf
    • https://cdn-cms.f-static.net/uploads/4450156/normal_5fda3ca5ccfa6.pdf
    • http://riniwodifole.medianewsonline.com/denazulanap.pdf
    • https://static.s123-cdn-static.com/uploads/4388062/normal_5ff6c80045300.pdf
    • http://mojofaza.mypressonline.com/danugegukavisopul.pdf
    • http://hellesypakk.online/lapawiganmi9ur.pdf
    • http://nibajafij.medianewsonline.com/fusizuguniwajugufe.pdf
    • http://kuviruvada.getenjoyment.net/lifutinozekosunu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://pogetowem.onlinewebshop.net/sunebareruzojezix.pdf
    • http://vigexosav.myartsonline.com/how_much_does_it_cost_to_copyright_a_logo.pdf
    • http://gupatevefojip.myartsonline.com/77140431901.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e592.bin
e6585f100e9a5bbccaf9e7aee543e1ac680a0e118856a992de725d2680bc9073
pdf-font-stream PDF embedded font (sfnt) at offset 0xE592 5220 bytes
font_01_sfnt_off0000f74f.bin
65462e6744a18212f642042a88bee6fd05b4c68cfc25b0f09d5e3abac45f6292
pdf-font-stream PDF embedded font (sfnt) at offset 0xF74F 11576 bytes