quasar | bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1

General

Target

bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe
Size

1.7MB
MD5

be5deb4eb43a1b071f8a2224787b4986
SHA1

ad145fe797c4fadfaec2f29146bd70d35f820d11
SHA256

bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1
SHA512

dd55a9cf9acfe26379bf469337b7ea8ace697a6430eab44cf5aa9b9afa6667ab59faa6100ce78c9e7cef1f7b04b25ef729c6c9dbd61ce7ef45a17bf17d9aa668
SSDEEP

24576:PUxJIRCRoenYQb6VOJ8Kgn1beVuumyEU:

Score

10^/10

quasar cio persistence spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.0

Botnet

Cio

C2

162.19.131.197:4782

Mutex

c5fdf017-8f44-47ea-a69e-0b82e4044ca7

Attributes

encryption_key
59A92039F951E5069C9F50FD9F340E759713B058
install_name
Client.exe
log_directory
Logs
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 payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1752-64-0x0000000000400000-0x0000000000484000-memory.dmp	family_quasar
behavioral1/memory/1752-65-0x0000000000400000-0x0000000000484000-memory.dmp	family_quasar
behavioral1/memory/1752-66-0x0000000000400000-0x0000000000484000-memory.dmp	family_quasar
behavioral1/memory/1752-67-0x000000000047E79E-mapping.dmp	family_quasar
behavioral1/memory/1752-69-0x0000000000400000-0x0000000000484000-memory.dmp	family_quasar
behavioral1/memory/1752-71-0x0000000000400000-0x0000000000484000-memory.dmp	family_quasar

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\Jlnprgcxco = "\"C:\\Users\\Admin\\AppData\\Roaming\\Eqbuy\\Jlnprgcxco.exe\""	bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe

description	pid	process	target process
PID 1324 set thread context of 1752	1324	bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe	bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exepowershell.exe

pid process

1324 bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe
1748 powershell.exe

pid	process
1324	bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe
1748	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exepowershell.exebace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe

description	pid	process
Token: SeDebugPrivilege	1324	bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe
Token: SeDebugPrivilege	1748	powershell.exe
Token: SeDebugPrivilege	1752	bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe

pid process

1752 bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe

pid	process
1752	bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe

description	pid	process	target process
PID 1324 wrote to memory of 1748	1324	bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe	powershell.exe
PID 1324 wrote to memory of 1748	1324	bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe	powershell.exe
PID 1324 wrote to memory of 1748	1324	bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe	powershell.exe
PID 1324 wrote to memory of 1748	1324	bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe	powershell.exe
PID 1324 wrote to memory of 1752	1324	bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe	bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe
PID 1324 wrote to memory of 1752	1324	bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe	bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe
PID 1324 wrote to memory of 1752	1324	bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe	bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe
PID 1324 wrote to memory of 1752	1324	bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe	bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe
PID 1324 wrote to memory of 1752	1324	bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe	bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe
PID 1324 wrote to memory of 1752	1324	bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe	bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe
PID 1324 wrote to memory of 1752	1324	bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe	bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe
PID 1324 wrote to memory of 1752	1324	bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe	bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe
PID 1324 wrote to memory of 1752	1324	bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe	bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe

C:\Users\Admin\AppData\Local\Temp\bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe
"C:\Users\Admin\AppData\Local\Temp\bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1324

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQA1AA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1748

C:\Users\Admin\AppData\Local\Temp\bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe
C:\Users\Admin\AppData\Local\Temp\bace836593264e31d5df7ea8adca4ef4536859addaa2819f5f63a76266cd07a1.exe
2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1752

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1324-54-0x0000000000840000-0x0000000000A00000-memory.dmp

Filesize
1.8MB

Download
memory/1324-55-0x0000000000A40000-0x0000000000B22000-memory.dmp

Filesize
904KB

Download
memory/1324-56-0x00000000007B0000-0x0000000000842000-memory.dmp

Filesize
584KB

Download
memory/1748-57-0x0000000000000000-mapping.dmp

Download
memory/1748-58-0x00000000752B1000-0x00000000752B3000-memory.dmp

Filesize
8KB

Download
memory/1748-59-0x000000006F420000-0x000000006F9CB000-memory.dmp

Filesize
5.7MB

Download
memory/1748-60-0x000000006F420000-0x000000006F9CB000-memory.dmp

Filesize
5.7MB

Download
memory/1752-61-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/1752-62-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/1752-64-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/1752-65-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/1752-66-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/1752-67-0x000000000047E79E-mapping.dmp

Download
memory/1752-69-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/1752-71-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads