MALICIOUS — 4991b3f4a0f38fdc9af8a2863b67f98eac9e9e0ff5878023f7d7e401b47c664d
MALICIOUS — 4991b3f4a0f38fdc9af8a2863b67f98eac9e9e0ff5878023f7d7e401b47c664d is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (98/100). 5 of 53 detection engines flagged it, exhibiting 2 ATT&CK techniques.
Identification
- SHA-256:
4991b3f4a0f38fdc9af8a2863b67f98eac9e9e0ff5878023f7d7e401b47c664d - SHA-1:
53297d57c7d70ec14e3f48b7c5c8f17f2ab62030 - MD5:
d71175d5b4e29b52e09e4e41c8942389 - ssdeep:
1536:sBwDoufcWjaZpucjwDdAMkseXX1x6l8zMbbnKwVVr7YJ9m1/3M:a+jfc4aZpuQwZfneX+8zObnJr7SE10 - TLSH:
T1F138D0F36167ED4C7A8BAF1399B6199C509AD7CC6032AF404484F62CC4BC67E3E18952 - Submitted as: 4991b3f4a0f38fdc9af8a2863b67f98eac9e9e0ff5878023f7d7e401b47c664d
- File type: pdf · Size: 82654 bytes
- Verdict: malicious (98/100)
Detections (5 of 53 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
- ClamAV (daily): Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
- Emsisoft (Emergency Kit): PDF.Spam.Heur.1
- Trellix Stinger (McAfee): PDF/Phish-FAB!D71175D5B4E2
- Kaspersky (KVRT): HEUR:Hoax.PDF.Phish.gen
MITRE ATT&CK
Why this verdict
The malicious score of 98/100 is the fusion of 7 weighted signals:
- ClamAV (daily) flagged Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 (rule
Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0) - engine signal, weight 0.90, confidence 0.95 - Embedded link rated malicious by URL analysis: https://uploads.strikinglycdn.com/files/25fc774f-d46c-4893-8bfa-0d815b61296b/how_to_get_hired_at_ross.pdf - network signal, weight 0.70, confidence 0.80
- Contacted 21 external host(s) at runtime (8 HTTP) - network signal, weight 0.40, confidence 0.80
- Embedded network infrastructure: https://crophysi.ru/strik?utm_term=how+to+calculate+pv+annuity+due+in+excel, https://poxemitiwafu.weebly.com/uploads/1/3/1/8/131871555/potumitavixivif-buxotoxedag.pdf, https://figagukedeliv.weebly.com/uploads/1/3/4/0/134040575/ccdf5.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 (8 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
9642 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
- 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
- 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
- ntp.ubuntu.com
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
- http://203.26.79.13/filestreamingservice//files/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/753bb2df-a166-494f-aa7d-5678b1ef0c56?P1=1787859042&P2=404&P3=2&P4=j%2bWrG4yWBJMZo%2fnXbYddmebicrb%2bEiVBtC7vvTktolNKPktTSjxHVC0HS61aiulGclw6lPY3VdUNprExx2JPxA%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Dropped files
- C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt -
3f6085f61835857f410a21d2d406cf6c3921455c922edd0f370e19bd7095cbad - C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\b8b6c7672465a41f98eee32055030c70.png -
7c4dc8f746495dc59f3e5bd62d3039e724cfd40d6207abc1cb82c5525c5684c6 - root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- https://crophysi.ru/strik?utm_term=how+to+calculate+pv+annuity+due+in+excel
- https://poxemitiwafu.weebly.com/uploads/1/3/1/8/131871555/potumitavixivif-buxotoxedag.pdf
- https://figagukedeliv.weebly.com/uploads/1/3/4/0/134040575/ccdf5.pdf
- https://uploads.strikinglycdn.com/files/25fc774f-d46c-4893-8bfa-0d815b61296b/how_to_get_hired_at_ross.pdf
- https://uploads.strikinglycdn.com/files/0af47a87-96d3-425d-90af-465f353ae6ef/sarozawulefogafar.pdf
- https://s3.amazonaws.com/kuxuxemu/amounts_owed_to_creditors_are_reported_as.pdf
- https://nixodogal.weebly.com/uploads/1/3/0/7/130739919/5601891.pdf
- https://nolujamikudaze.weebly.com/uploads/1/3/4/8/134868466/muramokuzunem.pdf
- https://vunorozixu.weebly.com/uploads/1/3/1/1/131163876/8372868.pdf
- https://dawujorukola.weebly.com/uploads/1/3/4/6/134683436/tinuzabegevil.pdf
- https://depujoseteg.weebly.com/uploads/1/3/5/3/135309287/kedofu.pdf
- https://uploads.strikinglycdn.com/files/922bb69f-58cd-4d64-980a-e5e93daca514/mosemexubezubajame.pdf
- https://uploads.strikinglycdn.com/files/1d2f9c5c-f911-40a1-9e62-ff6c49452e51/18200219686.pdf
- https://uploads.strikinglycdn.com/files/af1cae51-5b44-4142-a9eb-08a3b450a2e8/to_be_better_than_synonym.pdf
- https://lowarimubabop.weebly.com/uploads/1/3/4/7/134712264/5660820.pdf
- https://s3.amazonaws.com/rixevozajixezos/pawufexuwazujidaxibejiba.pdf
- https://s3.amazonaws.com/kugelilizibuwum/comparing_two_spreadsheets_in_excel.pdf
- https://uploads.strikinglycdn.com/files/0ae35cc2-b7cf-43df-baca-d9ba35514d61/gtx_970_vs_rx_580.pdf
- https://gutazalofekeva.weebly.com/uploads/1/3/5/3/135395177/rotowe-kesusomuxa.pdf
- https://uploads.strikinglycdn.com/files/6854cbc8-6f9c-47af-b932-a48bb7feb5a1/what_were_the_causes_of_the_treaty_of_guadalupe_hidalgo.pdf
- https://uploads.strikinglycdn.com/files/c93a277a-8de5-4da0-9101-c8544dec85ae/venn_diagram_maths_questions_in_hindi.pdf
- https://ritosameb.weebly.com/uploads/1/3/4/2/134266106/8575002.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/
Embedded domains
- crophysi.ru
- poxemitiwafu.weebly.com
- figagukedeliv.weebly.com
- uploads.strikinglycdn.com
- s3.amazonaws.com
- nixodogal.weebly.com
- nolujamikudaze.weebly.com
- vunorozixu.weebly.com
- dawujorukola.weebly.com
- depujoseteg.weebly.com
- lowarimubabop.weebly.com
- gutazalofekeva.weebly.com
- ritosameb.weebly.com
- www.w3.org
- purl.org
- ns.adobe.com
Embedded IP addresses
- 92.223.78.30
- 20.42.73.30
- 52.123.252.243
- 20.165.94.46
- 52.123.252.197
- 52.110.12.32
- 72.145.35.97
- 85.210.193.152
- 4.230.171.124
- 52.230.60.54
- 203.26.79.13
- 74.178.76.54
- 74.179.77.204
- 52.123.128.14
- 135.233.95.144
- 57.155.104.224
- 172.178.240.162
- 4.209.250.170
- 52.182.143.212
- 20.184.175.2
- 52.148.114.188
Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report