quasar | 6eea566794504979f9fa4d75285751f49afde178ad8a0cdfb81fceec9ebb2eb9

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 18:45

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General

Target

6eea566794504979f9fa4d75285751f49afde178ad8a0cdfb81fceec9ebb2eb9N.exe
Size

375KB
MD5

85b43fd8aa9d8b09b8613f2fa47c6bb0
SHA1

3729c0739c24b7ed9fda30684173a869c7398e80
SHA256

6eea566794504979f9fa4d75285751f49afde178ad8a0cdfb81fceec9ebb2eb9
SHA512

2898dc0c44a6543136281cf0bbdc03c3cc958098366773fc31ab047c2819e9df3d2b5596ded0d9a2811d915d4ced0404494dfa3381572c56dda9bf2772706ef2
SSDEEP

6144:YbqQ4i1FFiEKZVSQZzs5jQKbgQ203StbjjSQkzaozVVqH:CpliPScgCy73StbjjSQkVzV0H

Score

10^/10

quasar authenticator discovery spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Authenticator

iamaskibiditoilet-58299.portmap.host:58299

Mutex

QSR_MUTEX_bNzknSVeSVx21JnqhQ

Attributes

encryption_key
wAIAzlOLR0d5V3YI1aCM
install_name
Runtime Broker.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Runtime Broker
subdirectory
SubDir

Signatures

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

Quasar payload 3 IoCs

resource	yara_rule
behavioral1/memory/1928-1-0x0000000000C30000-0x0000000000C94000-memory.dmp	family_quasar
behavioral1/files/0x0008000000018741-5.dat	family_quasar
behavioral1/memory/2692-10-0x0000000000FA0000-0x0000000001004000-memory.dmp	family_quasar

Executes dropped EXE 2 IoCs

pid	Process
2692	Runtime Broker.exe
1672	Runtime Broker.exe

Loads dropped DLL 6 IoCs

pid	Process
1928	6eea566794504979f9fa4d75285751f49afde178ad8a0cdfb81fceec9ebb2eb9N.exe
2656	WerFault.exe
2656	WerFault.exe
2656	WerFault.exe
2656	WerFault.exe
2656	WerFault.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
2	ip-api.com

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2656	2692	WerFault.exe	33

System Location Discovery: System Language Discovery 1 TTPs 8 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

description	ioc	Process
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	Runtime Broker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6eea566794504979f9fa4d75285751f49afde178ad8a0cdfb81fceec9ebb2eb9N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Runtime Broker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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

pid	Process
2644	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2644	PING.EXE

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1300	schtasks.exe
2724	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1928	6eea566794504979f9fa4d75285751f49afde178ad8a0cdfb81fceec9ebb2eb9N.exe
Token: SeDebugPrivilege	2692	Runtime Broker.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2692	Runtime Broker.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 1928 wrote to memory of 1300	1928	6eea566794504979f9fa4d75285751f49afde178ad8a0cdfb81fceec9ebb2eb9N.exe	31
PID 1928 wrote to memory of 1300	1928	6eea566794504979f9fa4d75285751f49afde178ad8a0cdfb81fceec9ebb2eb9N.exe	31
PID 1928 wrote to memory of 1300	1928	6eea566794504979f9fa4d75285751f49afde178ad8a0cdfb81fceec9ebb2eb9N.exe	31
PID 1928 wrote to memory of 1300	1928	6eea566794504979f9fa4d75285751f49afde178ad8a0cdfb81fceec9ebb2eb9N.exe	31
PID 1928 wrote to memory of 2692	1928	6eea566794504979f9fa4d75285751f49afde178ad8a0cdfb81fceec9ebb2eb9N.exe	33
PID 1928 wrote to memory of 2692	1928	6eea566794504979f9fa4d75285751f49afde178ad8a0cdfb81fceec9ebb2eb9N.exe	33
PID 1928 wrote to memory of 2692	1928	6eea566794504979f9fa4d75285751f49afde178ad8a0cdfb81fceec9ebb2eb9N.exe	33
PID 1928 wrote to memory of 2692	1928	6eea566794504979f9fa4d75285751f49afde178ad8a0cdfb81fceec9ebb2eb9N.exe	33
PID 2692 wrote to memory of 2724	2692	Runtime Broker.exe	34
PID 2692 wrote to memory of 2724	2692	Runtime Broker.exe	34
PID 2692 wrote to memory of 2724	2692	Runtime Broker.exe	34
PID 2692 wrote to memory of 2724	2692	Runtime Broker.exe	34
PID 2692 wrote to memory of 1400	2692	Runtime Broker.exe	36
PID 2692 wrote to memory of 1400	2692	Runtime Broker.exe	36
PID 2692 wrote to memory of 1400	2692	Runtime Broker.exe	36
PID 2692 wrote to memory of 1400	2692	Runtime Broker.exe	36
PID 2692 wrote to memory of 2656	2692	Runtime Broker.exe	38
PID 2692 wrote to memory of 2656	2692	Runtime Broker.exe	38
PID 2692 wrote to memory of 2656	2692	Runtime Broker.exe	38
PID 2692 wrote to memory of 2656	2692	Runtime Broker.exe	38
PID 1400 wrote to memory of 1668	1400	cmd.exe	39
PID 1400 wrote to memory of 1668	1400	cmd.exe	39
PID 1400 wrote to memory of 1668	1400	cmd.exe	39
PID 1400 wrote to memory of 1668	1400	cmd.exe	39
PID 1400 wrote to memory of 2644	1400	cmd.exe	40
PID 1400 wrote to memory of 2644	1400	cmd.exe	40
PID 1400 wrote to memory of 2644	1400	cmd.exe	40
PID 1400 wrote to memory of 2644	1400	cmd.exe	40
PID 1400 wrote to memory of 1672	1400	cmd.exe	42
PID 1400 wrote to memory of 1672	1400	cmd.exe	42
PID 1400 wrote to memory of 1672	1400	cmd.exe	42
PID 1400 wrote to memory of 1672	1400	cmd.exe	42

C:\Users\Admin\AppData\Local\Temp\6eea566794504979f9fa4d75285751f49afde178ad8a0cdfb81fceec9ebb2eb9N.exe
"C:\Users\Admin\AppData\Local\Temp\6eea566794504979f9fa4d75285751f49afde178ad8a0cdfb81fceec9ebb2eb9N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1928
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks" /create /tn "Runtime Broker" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\6eea566794504979f9fa4d75285751f49afde178ad8a0cdfb81fceec9ebb2eb9N.exe" /rl HIGHEST /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1300
- C:\Users\Admin\AppData\Roaming\SubDir\Runtime Broker.exe
  "C:\Users\Admin\AppData\Roaming\SubDir\Runtime Broker.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2692
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks" /create /tn "Runtime Broker" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Runtime Broker.exe" /rl HIGHEST /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2724
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\hSNbNTiOe04B.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1400
  - - C:\Windows\SysWOW64\chcp.com
      chcp 65001
      4⤵
      System Location Discovery: System Language Discovery
      PID:1668
  - - 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:2644
  - - C:\Users\Admin\AppData\Roaming\SubDir\Runtime Broker.exe
      "C:\Users\Admin\AppData\Roaming\SubDir\Runtime Broker.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:1672
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2692 -s 1444
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:2656

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\hSNbNTiOe04B.bat

Filesize
215B

MD5
8f0dd1ec63aadd00f2ce5ddcf7e7f8d8

SHA1
4942de017eee73fcf20fac317078f34034a85a13

SHA256
8ef05f5acf61f4e19375a8b2c013292ceac154567acbbf941bfbfabcbb6007bb

SHA512
dbfb4655c2fa1d845e8f08e61378b097f82209f3c5df9d3304b78a43b8b5778cc535442fc2031dec15ac38816d183eefb4c1fb263d8a6c58d6ca10b132353840

Download Submit
\Users\Admin\AppData\Roaming\SubDir\Runtime Broker.exe

Filesize
375KB

MD5
85b43fd8aa9d8b09b8613f2fa47c6bb0

SHA1
3729c0739c24b7ed9fda30684173a869c7398e80

SHA256
6eea566794504979f9fa4d75285751f49afde178ad8a0cdfb81fceec9ebb2eb9

SHA512
2898dc0c44a6543136281cf0bbdc03c3cc958098366773fc31ab047c2819e9df3d2b5596ded0d9a2811d915d4ced0404494dfa3381572c56dda9bf2772706ef2

Download Submit
memory/1928-0-0x0000000074A3E000-0x0000000074A3F000-memory.dmp

Filesize
4KB

Download
memory/1928-1-0x0000000000C30000-0x0000000000C94000-memory.dmp

Filesize
400KB

Download
memory/1928-2-0x0000000074A30000-0x000000007511E000-memory.dmp

Filesize
6.9MB

Download
memory/1928-13-0x0000000074A30000-0x000000007511E000-memory.dmp

Filesize
6.9MB

Download
memory/2692-10-0x0000000000FA0000-0x0000000001004000-memory.dmp

Filesize
400KB

Download
memory/2692-11-0x0000000074A30000-0x000000007511E000-memory.dmp

Filesize
6.9MB

Download
memory/2692-12-0x0000000074A30000-0x000000007511E000-memory.dmp

Filesize
6.9MB

Download
memory/2692-29-0x0000000074A30000-0x000000007511E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads