MALICIOUS — normal_5f96878c70add.pdf

MALICIOUS — normal_5f96878c70add.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (72/100). 3 of 53 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

• SHA-256: c34cc0fc464f5ad80ec87bc738139d533c3a2d01475ff35d3c8b054c7d84f161
• SHA-1: a1f543d31291691616e2ced73aead99200cc8f02
• MD5: 00b228dcc2c514ddf010eb71315ca564
• ssdeep: 768:X4gGzpD8pZ06WUJ69ytrijIv3n4ASjIeW8We8xIoTzvIMKv7MsyjOp9/VUznvbY7:FGFwpZ0oriUw/pCTzv3syjUCTjYfz
• TLSH: T17331AEF30197ED4C7A8AEB0768B7149AA089D24C2233E760559C3B7DC4BC5BE7E50911
• Submitted as: normal_5f96878c70add.pdf
• File type: pdf · Size: 43158 bytes
• Verdict: malicious (72/100)

Detections (3 of 53 engines)

• MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
• Emsisoft (Emergency Kit): PDF.Spam.Heur.1
• Kaspersky (KVRT): HEUR:Trojan.Script.Generic

MITRE ATT&CK

• T1105
• T1566.002

Why this verdict

The malicious score of 72/100 is the fusion of 6 weighted signals:

• Contacted 20 external host(s) at runtime (8 HTTP) - network signal, weight 0.40, confidence 0.80
• Embedded link rated suspicious by URL analysis: https://uploads.strikinglycdn.com/files/5c83dd5a-d8cb-45ca-8d3f-3d6bca37034c/fazijevefumazog.pdf - network signal, weight 0.40, confidence 0.60
• Embedded network infrastructure: https://ttraff.link/123?keyword=intermediate+english+course+programmes+1-10+pdf, https://digonowokeke.weebly.com/uploads/1/3/1/8/131856318/lusowopelaz.pdf, https://pavowojavujide.weebly.com/uploads/1/3/1/3/131398322/semujojozofosuv_vavuvozija_kabuxasu_gomoporenedivu.pdf - static signal, weight 0.35, confidence 0.60
• Document active content: uri-action - static signal, weight 0.30, confidence 0.60
• Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55
• Extracted generic config (6 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30

Dynamic analysis (windows)

9761 behavior events · 0 ATT&CK techniques · 3 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• inference.location.live.net
• to-do.office.com
• staging.to-do.officeppe.com
• teams.cloud.microsoft
• outlook.office.com
• outlook.office365.com
• outlook.cloud.microsoft
• ntp.ubuntu.com
• 3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• 252.0.0.224.in-addr.arpa
• desktop-hsgcbep
• 2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• 250.255.255.239.in-addr.arpa
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl

Dropped files

• C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt - dfdd8eaae7f33b8c58a0a610d6b40e229dcb0fdc80918a6c95fce0a56a029683
• C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\276cf615a1cc2d7d47f9b808b9c81f2a.png - 0c9d29a6d9189b1dd64a0abee84f7b71835ef95403fc57b38ddaedd83165579b
• root_.cache_dconf_user - 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7

Embedded URLs

• https://ttraff.link/123?keyword=intermediate+english+course+programmes+1-10+pdf
• https://digonowokeke.weebly.com/uploads/1/3/1/8/131856318/lusowopelaz.pdf
• https://pavowojavujide.weebly.com/uploads/1/3/1/3/131398322/semujojozofosuv_vavuvozija_kabuxasu_gomoporenedivu.pdf
• https://jawanowek.weebly.com/uploads/1/3/4/3/134356941/6738940.pdf
• https://disavapiviloma.weebly.com/uploads/1/3/4/3/134351159/dee7198da788.pdf
• https://s3.amazonaws.com/vexosafugunu/advanced_glycation_end_products_adalah.pdf
• https://cdn.shopify.com/s/files/1/0492/8693/8780/files/jisipibinapibaribi.pdf
• https://cdn.shopify.com/s/files/1/0483/0507/8434/files/51390703495.pdf
• https://cdn.shopify.com/s/files/1/0504/6960/1445/files/wowhead_classic_druid_tank_guide.pdf
• https://uploads.strikinglycdn.com/files/5c83dd5a-d8cb-45ca-8d3f-3d6bca37034c/fazijevefumazog.pdf
• https://uploads.strikinglycdn.com/files/74846577-0819-4b8d-8ffd-5ab17776f679/baninunagemasopenefixar.pdf
• https://uploads.strikinglycdn.com/files/abb1e99f-9138-42cc-888b-bee6895a9bca/37611600828.pdf
• https://s3.amazonaws.com/zetare/kitab_barzanji_dan_terjemahan.pdf
• https://s3.amazonaws.com/zirojopemup/zoweladazofodonotovu.pdf
• https://s3.amazonaws.com/padadutiseni/gugib.pdf
• https://s3.amazonaws.com/retobifulipo/learning_style_visual_auditory_kinesthetic.pdf
• https://uploads.strikinglycdn.com/files/5bc53154-228a-4e36-ad21-6c7934aef8c1/bartaman_bengali_newspaper.pdf
• https://uploads.strikinglycdn.com/files/6c269006-7d79-4c93-a11a-48a792d27844/fibinafukesosakuge.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://www.msftconnecttest.com/connecttest.txt

Embedded domains

• ttraff.link
• digonowokeke.weebly.com
• pavowojavujide.weebly.com
• jawanowek.weebly.com
• disavapiviloma.weebly.com
• s3.amazonaws.com
• cdn.shopify.com
• uploads.strikinglycdn.com
• www.w3.org
• purl.org
• ns.adobe.com

Embedded IP addresses

• 135.232.92.34
• 40.79.167.9
• 172.172.255.218
• 20.184.175.11
• 162.159.142.9
• 172.66.2.5
• 52.110.12.20
• 52.110.12.8
• 40.84.85.40
• 4.230.171.124
• 203.26.79.13
• 20.184.175.23
• 74.179.77.204
• 20.76.201.171
• 4.150.223.96
• 52.123.128.14
• 135.233.45.221
• 74.178.76.44
• 52.148.114.188
• 142.250.195.163

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report