quasar | 82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954

Analysis

max time kernel
138s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-11-2024 06:23

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General

Target

82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954.exe
Size

2.1MB
MD5

dc17a1ec3a9bb84d21a7f6a7e77133f6
SHA1

2a6c10ea20bff9e297770bca2477a8bb82378c45
SHA256

82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954
SHA512

eb321ab29735ecf574939cd01ee51f04a623382d83d22d8efc6538a1618af0bfa3a8407b0f6e3c54f55e4a780e2f5176004d50f9598a0a9935207635810cc042
SSDEEP

49152:YX5YSZrAEzwpX/qR0KlOmOdXcyhgkkTScqMkRnGfRlz+:K5YC4o0MOdX4zSPnGZh+

Score

10^/10

quasar panel.o7lab.me discovery spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

panel.o7lab.me

panel.o7lab.me:4782

service.o7lab.xyz:4782

underground-cheat.xyz:4782

service.o7lab.com.tr:4782

Mutex

84f88b7e-fbb8-40b1-829a-206ff17d9f29

Attributes

encryption_key
9D5D5E73AB412A75009506F89BC73714AF89F744
install_name
Client.exe
log_directory
WinLog
reconnect_delay
3000
startup_key
Quasar Client Startup
subdirectory
SubDir

Signatures

Quasar RAT
Quasar is an open source Remote Access Tool.
trojan spyware quasar
Quasar family
quasar

Quasar payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1788-1095-0x0000000000400000-0x0000000000724000-memory.dmp	family_quasar

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

Processes:

82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954.exe

description pid process target process

PID 1084 created 3520 1084 82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954.exe Explorer.EXE

description	pid	process	target process
PID 1084 created 3520	1084	82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954.exe	Explorer.EXE

Drops startup file 1 IoCs

Processes:

82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Value.vbs	82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954.exe

description	pid	process	target process
PID 1084 set thread context of 1788	1084	82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954.exe	InstallUtil.exe

System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954.exeInstallUtil.execmd.exechcp.comPING.EXEInstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs
Adversaries may check for Internet connectivity on compromised systems.
discovery

Internet Connection Discovery
T1016.001

Processes:

PING.EXE

pid process

1948 PING.EXE
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1948 PING.EXE
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954.exe

pid process

1084 82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954.exe

pid	process
1948	PING.EXE

pid	process
1948	PING.EXE

pid	process
1084	82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954.exeInstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	1084	82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954.exe
Token: SeDebugPrivilege	1084	82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954.exe
Token: SeDebugPrivilege	1788	InstallUtil.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

InstallUtil.exe

pid process

1788 InstallUtil.exe

pid	process
1788	InstallUtil.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954.exeInstallUtil.execmd.exe

description	pid	process	target process
PID 1084 wrote to memory of 1788	1084	82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954.exe	InstallUtil.exe
PID 1084 wrote to memory of 1788	1084	82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954.exe	InstallUtil.exe
PID 1084 wrote to memory of 1788	1084	82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954.exe	InstallUtil.exe
PID 1084 wrote to memory of 1788	1084	82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954.exe	InstallUtil.exe
PID 1084 wrote to memory of 1788	1084	82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954.exe	InstallUtil.exe
PID 1084 wrote to memory of 1788	1084	82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954.exe	InstallUtil.exe
PID 1084 wrote to memory of 1788	1084	82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954.exe	InstallUtil.exe
PID 1084 wrote to memory of 1788	1084	82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954.exe	InstallUtil.exe
PID 1788 wrote to memory of 1692	1788	InstallUtil.exe	cmd.exe
PID 1788 wrote to memory of 1692	1788	InstallUtil.exe	cmd.exe
PID 1788 wrote to memory of 1692	1788	InstallUtil.exe	cmd.exe
PID 1692 wrote to memory of 2288	1692	cmd.exe	chcp.com
PID 1692 wrote to memory of 2288	1692	cmd.exe	chcp.com
PID 1692 wrote to memory of 2288	1692	cmd.exe	chcp.com
PID 1692 wrote to memory of 1948	1692	cmd.exe	PING.EXE
PID 1692 wrote to memory of 1948	1692	cmd.exe	PING.EXE
PID 1692 wrote to memory of 1948	1692	cmd.exe	PING.EXE
PID 1692 wrote to memory of 3172	1692	cmd.exe	InstallUtil.exe
PID 1692 wrote to memory of 3172	1692	cmd.exe	InstallUtil.exe
PID 1692 wrote to memory of 3172	1692	cmd.exe	InstallUtil.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3520

C:\Users\Admin\AppData\Local\Temp\82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954.exe
"C:\Users\Admin\AppData\Local\Temp\82687bbf89460d44b3cef2d06f5d09288c45d787323254026f39cb3421cc3954.exe"
2⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1084

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1788

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\b0mvwGCN0oVv.bat" "
3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1692

C:\Windows\SysWOW64\chcp.com
chcp 65001
4⤵
- System Location Discovery: System Language Discovery
PID:2288

C:\Windows\SysWOW64\PING.EXE
ping -n 10 localhost
4⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:1948

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
4⤵
- System Location Discovery: System Language Discovery
PID:3172

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Remote System Discovery

T1018

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\InstallUtil.exe.log

Filesize
1KB

MD5
38b07cd5da5c740e9629fd801dc26e5a

SHA1
42816159ab9367165cf58603b09b134d488c1690

SHA256
20049cc7ade63a31f442dfd2b99740f0512fdcc764266b8b105292e30d2b7483

SHA512
1769ffefe181531476e10311295f38d11b85b5ec3710000b5cb081675e5f233792f96bb4178b75fd0e2cfc86965e7368173d22799a1e9fa3317ddd49047fab5a

Download Submit
C:\Users\Admin\AppData\Local\Temp\b0mvwGCN0oVv.bat

Filesize
220B

MD5
45e881b40bb95d1f34ca9013208d24db

SHA1
df6079cb0518e617bede709fbba6412e764ffc7c

SHA256
3c99c5046f38d6b685f6ef44d95598a25d612927eec40b5b56acb94ffa07866b

SHA512
737f00ef9daf4cce7d781ba9ba8ba78f2e0b88d2889b61811079c66407d9e64f8b81dd3c468ccb0bac1e746da59f3e50d94e75835e12a5bec02ed5c0c206d01e

Download Submit
memory/1084-0-0x000000007519E000-0x000000007519F000-memory.dmp

Filesize
4KB

Download
memory/1084-1-0x0000000000690000-0x00000000008BC000-memory.dmp

Filesize
2.2MB

Download
memory/1084-2-0x0000000005400000-0x000000000560C000-memory.dmp

Filesize
2.0MB

Download
memory/1084-3-0x0000000005BC0000-0x0000000006164000-memory.dmp

Filesize
5.6MB

Download
memory/1084-4-0x00000000056C0000-0x0000000005752000-memory.dmp

Filesize
584KB

Download
memory/1084-24-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-22-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-42-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-50-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-46-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-68-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-66-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-64-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-62-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-58-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-56-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-54-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-53-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-61-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-44-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-48-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-40-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-38-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-36-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-34-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-28-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-26-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-20-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-18-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-16-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-14-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-12-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-10-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-6-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-32-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-30-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-5-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-8-0x0000000005400000-0x0000000005606000-memory.dmp

Filesize
2.0MB

Download
memory/1084-1079-0x0000000075190000-0x0000000075940000-memory.dmp

Filesize
7.7MB

Download
memory/1084-1080-0x0000000075190000-0x0000000075940000-memory.dmp

Filesize
7.7MB

Download
memory/1084-1081-0x0000000005990000-0x0000000005B0E000-memory.dmp

Filesize
1.5MB

Download
memory/1084-1082-0x0000000005760000-0x00000000057AC000-memory.dmp

Filesize
304KB

Download
memory/1084-1086-0x0000000075190000-0x0000000075940000-memory.dmp

Filesize
7.7MB

Download
memory/1084-1087-0x0000000075190000-0x0000000075940000-memory.dmp

Filesize
7.7MB

Download
memory/1084-1088-0x0000000075190000-0x0000000075940000-memory.dmp

Filesize
7.7MB

Download
memory/1084-1089-0x000000007519E000-0x000000007519F000-memory.dmp

Filesize
4KB

Download
memory/1084-1090-0x0000000002B60000-0x0000000002BB4000-memory.dmp

Filesize
336KB

Download
memory/1084-1094-0x0000000075190000-0x0000000075940000-memory.dmp

Filesize
7.7MB

Download
memory/1788-1095-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/1788-1096-0x0000000075190000-0x0000000075940000-memory.dmp

Filesize
7.7MB

Download
memory/1788-1097-0x0000000075190000-0x0000000075940000-memory.dmp

Filesize
7.7MB

Download
memory/1788-1098-0x00000000056A0000-0x00000000056AA000-memory.dmp

Filesize
40KB

Download
memory/1788-1099-0x00000000067E0000-0x0000000006DF8000-memory.dmp

Filesize
6.1MB

Download
memory/1788-1100-0x0000000006270000-0x00000000062C0000-memory.dmp

Filesize
320KB

Download
memory/1788-1101-0x00000000064E0000-0x0000000006592000-memory.dmp

Filesize
712KB

Download
memory/1788-1102-0x0000000075190000-0x0000000075940000-memory.dmp

Filesize
7.7MB

Download
memory/1788-1108-0x0000000075190000-0x0000000075940000-memory.dmp

Filesize
7.7MB

Download
memory/3172-1111-0x0000000002E00000-0x0000000002E1A000-memory.dmp

Filesize
104KB

Download
memory/3172-1110-0x0000000000B50000-0x0000000000B5C000-memory.dmp

Filesize
48KB

Download