Malware Analysis Report

2025-01-02 11:46

Sample ID 230101-3hl82agb6z
Target jre-8u351-windows-x64.exe
SHA256 188ca8ecc44de1b7f602e883c3054dc392792c3631bf362b1bc4f3e1dba323e6
Tags
bazarbackdoor backdoor
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

188ca8ecc44de1b7f602e883c3054dc392792c3631bf362b1bc4f3e1dba323e6

Threat Level: Known bad

The file jre-8u351-windows-x64.exe was found to be: Known bad.

Malicious Activity Summary

bazarbackdoor backdoor

Bazarbackdoor family

BazarBackdoor

Bazar/Team9 Backdoor payload

Bazar/Team9 Backdoor payload

Executes dropped EXE

Loads dropped DLL

Modifies system certificate store

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Modifies Internet Explorer settings

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-01-01 23:31

Signatures

Bazar/Team9 Backdoor payload

Description Indicator Process Target
N/A N/A N/A N/A

Bazarbackdoor family

bazarbackdoor

Analysis: behavioral1

Detonation Overview

Submitted

2023-01-01 23:30

Reported

2023-01-01 23:45

Platform

win7-20220812-en

Max time kernel

402s

Max time network

410s

Command Line

"C:\Users\Admin\AppData\Local\Temp\jre-8u351-windows-x64.exe"

Signatures

BazarBackdoor

backdoor bazarbackdoor

Bazar/Team9 Backdoor payload

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\jds7102351.tmp\jre-8u351-windows-x64.exe N/A
N/A N/A N/A N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\jre-8u351-windows-x64.exe N/A
N/A N/A N/A N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main C:\Users\Admin\AppData\Local\Temp\jds7102351.tmp\jre-8u351-windows-x64.exe N/A

Modifies system certificate store

evasion spyware trojan
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436 C:\Users\Admin\AppData\Local\Temp\jds7102351.tmp\jre-8u351-windows-x64.exe N/A
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436\Blob = 04000000010000001000000079e4a9840d7d3a96d7c04fe2434c892e0f0000000100000014000000b34ddd372ed92e8f2abfbb9e20a9d31f204f194b090000000100000034000000303206082b0601050507030106082b0601050507030206082b0601050507030406082b0601050507030306082b0601050507030814000000010000001400000003de503556d14cbb66f0a3e21b1bc397b23dd1550b00000001000000120000004400690067006900430065007200740000001d000000010000001000000059779e39e21a2e3dfced6857ed5c5fd9030000000100000014000000a8985d3a65e5e5c4b2d7d66d40c6dd2fb19c54361900000001000000100000000f3a0527d242de2dc98e5cfcb1e991ee2000000001000000b3030000308203af30820297a0030201020210083be056904246b1a1756ac95991c74a300d06092a864886f70d01010505003061310b300906035504061302555331153013060355040a130c446967694365727420496e6331193017060355040b13107777772e64696769636572742e636f6d3120301e06035504031317446967694365727420476c6f62616c20526f6f74204341301e170d3036313131303030303030305a170d3331313131303030303030305a3061310b300906035504061302555331153013060355040a130c446967694365727420496e6331193017060355040b13107777772e64696769636572742e636f6d3120301e06035504031317446967694365727420476c6f62616c20526f6f7420434130820122300d06092a864886f70d01010105000382010f003082010a0282010100e23be11172dea8a4d3a357aa50a28f0b7790c9a2a5ee12ce965b010920cc0193a74e30b753f743c46900579de28d22dd870640008109cece1b83bfdfcd3b7146e2d666c705b37627168f7b9e1e957deeb748a308dad6af7a0c3906657f4a5d1fbc17f8abbeee28d7747f7a78995985686e5c23324bbf4ec0e85a6de370bf7710bffc01f685d9a844105832a97518d5d1a2be47e2276af49a33f84908608bd45fb43a84bfa1aa4a4c7d3ecf4f5f6c765ea04b37919edc22e66dce141a8e6acbfecdb3146417c75b299e32bff2eefad30b42d4abb74132da0cd4eff881d5bb8d583fb51be84928a270da3104ddf7b216f24c0a4e07a8ed4a3d5eb57fa390c3af270203010001a3633061300e0603551d0f0101ff040403020186300f0603551d130101ff040530030101ff301d0603551d0e0416041403de503556d14cbb66f0a3e21b1bc397b23dd155301f0603551d2304183016801403de503556d14cbb66f0a3e21b1bc397b23dd155300d06092a864886f70d01010505000382010100cb9c37aa4813120afadd449c4f52b0f4dfae04f5797908a32418fc4b2b84c02db9d5c7fef4c11f58cbb86d9c7a74e79829ab11b5e370a0a1cd4c8899938c9170e2ab0f1cbe93a9ff63d5e40760d3a3bf9d5b09f1d58ee353f48e63fa3fa7dbb466df6266d6d16e418df22db5ea774a9f9d58e22b59c04023ed2d2882453e7954922698e08048a837eff0d6796016deace80ecd6eac4417382f49dae1453e2ab93653cf3a5006f72ee8c457496c612118d504ad783c2c3a806ba7ebaf1514e9d889c1b9386ce2916c8aff64b977255730c01b24a3e1dce9df477cb5b424080530ec2dbd0bbf45bf50b9a9f3eb980112adc888c698345f8d0a3cc6e9d595956dde C:\Users\Admin\AppData\Local\Temp\jds7102351.tmp\jre-8u351-windows-x64.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\jre-8u351-windows-x64.exe

"C:\Users\Admin\AppData\Local\Temp\jre-8u351-windows-x64.exe"

C:\Users\Admin\AppData\Local\Temp\jds7102351.tmp\jre-8u351-windows-x64.exe

"C:\Users\Admin\AppData\Local\Temp\jds7102351.tmp\jre-8u351-windows-x64.exe"

Network

Country Destination Domain Proto
N/A 8.8.8.8:53 javadl-esd-secure.oracle.com udp
N/A 23.222.50.60:443 javadl-esd-secure.oracle.com tcp
N/A 8.8.8.8:53 rps-svcs.oracle.com udp
N/A 23.222.50.60:443 rps-svcs.oracle.com tcp

Files

\Users\Admin\AppData\Local\Temp\jds7102351.tmp\jre-8u351-windows-x64.exe

MD5 dfcfc788d67437530a50177164db42b0
SHA1 2d9ed0dc5671a358186dcf83abb74bfe39c40e9f
SHA256 a90318bae7d99da633d9cac8ce322120d087e7b6f5eec0d1d0d7f9413fdd4dc1
SHA512 dbdfd02528c9f0e506232e8640a8602fade0d05f4139368187300ea2d537e41d2d167655ded30d938bd445a21c776a3c3721f8db4d3f03e3c06807a84cf232e3

memory/1948-55-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Local\Temp\jds7102351.tmp\jre-8u351-windows-x64.exe

MD5 dfcfc788d67437530a50177164db42b0
SHA1 2d9ed0dc5671a358186dcf83abb74bfe39c40e9f
SHA256 a90318bae7d99da633d9cac8ce322120d087e7b6f5eec0d1d0d7f9413fdd4dc1
SHA512 dbdfd02528c9f0e506232e8640a8602fade0d05f4139368187300ea2d537e41d2d167655ded30d938bd445a21c776a3c3721f8db4d3f03e3c06807a84cf232e3

memory/1948-57-0x000007FEFB7D1000-0x000007FEFB7D3000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\jusched.log

MD5 c57cb03a9350bd3591743d1b8320ecdc
SHA1 6c39278bcf887ae2c4b0993b3b91483002370917
SHA256 a03796477c1410ea453c778baf97f90ff1b7f4c4ff69f71d9c601eca6debc29f
SHA512 a4f4885b263ee0310b268671b347e6d94ad9cb6f8d65ba806ed5a8121ae852d9102f48b9c87ef1ebaeced95f1199bd5e2e2bca038e3d0e0568a84bb206bc1c28

C:\Users\Admin\AppData\Local\Temp\jds7102351.tmp\jre-8u351-windows-x64.exe

MD5 dfcfc788d67437530a50177164db42b0
SHA1 2d9ed0dc5671a358186dcf83abb74bfe39c40e9f
SHA256 a90318bae7d99da633d9cac8ce322120d087e7b6f5eec0d1d0d7f9413fdd4dc1
SHA512 dbdfd02528c9f0e506232e8640a8602fade0d05f4139368187300ea2d537e41d2d167655ded30d938bd445a21c776a3c3721f8db4d3f03e3c06807a84cf232e3

\Users\Admin\AppData\Local\Temp\jds7102351.tmp\jre-8u351-windows-x64.exe

MD5 dfcfc788d67437530a50177164db42b0
SHA1 2d9ed0dc5671a358186dcf83abb74bfe39c40e9f
SHA256 a90318bae7d99da633d9cac8ce322120d087e7b6f5eec0d1d0d7f9413fdd4dc1
SHA512 dbdfd02528c9f0e506232e8640a8602fade0d05f4139368187300ea2d537e41d2d167655ded30d938bd445a21c776a3c3721f8db4d3f03e3c06807a84cf232e3

\Users\Admin\AppData\Local\Temp\jds7102351.tmp\jre-8u351-windows-x64.exe

MD5 dfcfc788d67437530a50177164db42b0
SHA1 2d9ed0dc5671a358186dcf83abb74bfe39c40e9f
SHA256 a90318bae7d99da633d9cac8ce322120d087e7b6f5eec0d1d0d7f9413fdd4dc1
SHA512 dbdfd02528c9f0e506232e8640a8602fade0d05f4139368187300ea2d537e41d2d167655ded30d938bd445a21c776a3c3721f8db4d3f03e3c06807a84cf232e3

Analysis: behavioral2

Detonation Overview

Submitted

2023-01-01 23:30

Reported

2023-01-01 23:45

Platform

win10v2004-20220812-en

Max time kernel

508s

Max time network

514s

Command Line

"C:\Users\Admin\AppData\Local\Temp\jre-8u351-windows-x64.exe"

Signatures

BazarBackdoor

backdoor bazarbackdoor

Bazar/Team9 Backdoor payload

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\jds240547265.tmp\jre-8u351-windows-x64.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\jre-8u351-windows-x64.exe

"C:\Users\Admin\AppData\Local\Temp\jre-8u351-windows-x64.exe"

C:\Users\Admin\AppData\Local\Temp\jds240547265.tmp\jre-8u351-windows-x64.exe

"C:\Users\Admin\AppData\Local\Temp\jds240547265.tmp\jre-8u351-windows-x64.exe"

Network

Country Destination Domain Proto
N/A 93.184.220.29:80 tcp
N/A 8.8.8.8:53 javadl-esd-secure.oracle.com udp
N/A 23.222.50.60:443 javadl-esd-secure.oracle.com tcp
N/A 20.42.65.89:443 tcp
N/A 104.110.191.133:80 tcp
N/A 104.110.191.133:80 tcp

Files

memory/3032-132-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Local\Temp\jds240547265.tmp\jre-8u351-windows-x64.exe

MD5 dfcfc788d67437530a50177164db42b0
SHA1 2d9ed0dc5671a358186dcf83abb74bfe39c40e9f
SHA256 a90318bae7d99da633d9cac8ce322120d087e7b6f5eec0d1d0d7f9413fdd4dc1
SHA512 dbdfd02528c9f0e506232e8640a8602fade0d05f4139368187300ea2d537e41d2d167655ded30d938bd445a21c776a3c3721f8db4d3f03e3c06807a84cf232e3

C:\Users\Admin\AppData\Local\Temp\jds240547265.tmp\jre-8u351-windows-x64.exe

MD5 dfcfc788d67437530a50177164db42b0
SHA1 2d9ed0dc5671a358186dcf83abb74bfe39c40e9f
SHA256 a90318bae7d99da633d9cac8ce322120d087e7b6f5eec0d1d0d7f9413fdd4dc1
SHA512 dbdfd02528c9f0e506232e8640a8602fade0d05f4139368187300ea2d537e41d2d167655ded30d938bd445a21c776a3c3721f8db4d3f03e3c06807a84cf232e3

C:\Users\Admin\AppData\Local\Temp\jusched.log

MD5 839b1fbad8eadeba1ce5e86a1f58ceb7
SHA1 cc7a90c0eb5362cc9bcb5c040289028651c364e7
SHA256 56dcdb0811cafdfcce23ad8243fbb875df56c58e1b2813289b7df4bd40841a93
SHA512 e378d0c560cac3b6bd4133d18b66aed08753f373b7513364c5b88da8539846bcb24121edb20f27db73fe941e4a1600c50a7ba7181e6d2e8d79b4289ba62684fd