quasar | 4ca77febd10fb2e3a0ebd202ffd7efb798912d80c76ebdbc76b68b7b59de115a

Analysis

max time kernel
106s
max time network
103s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
16-12-2024 19:45

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General

Target

Client-built.exe
Size

348KB
MD5

1b3caea7f3034ec10eecb722a369c652
SHA1

7bf564e5695c879a823068f19b9c5b25d9c3ed53
SHA256

4ca77febd10fb2e3a0ebd202ffd7efb798912d80c76ebdbc76b68b7b59de115a
SHA512

96d59d9a0bca26121ea0643840a3c568fb5ee5fa21cb4e6278cb229ad9b34c9445c22f406daa3c8c11f84f30995064612a1e24eff3211878eae2fd5c5b81a646
SSDEEP

6144:9MNHXf500ME3EaGbbJ23fR34sZh85r+UxRXNO:ud50LNqR3nh8l+UxRXNO

Score

10^/10

quasar meedo discovery spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Meedo

2.tcp.eu.ngrok.io:8080

2.tcp.eu.ngrok.io:13677

Mutex

QSR_MUTEX_F7GTMqsQBGCZlMGQ5p

Attributes

encryption_key
U2vyTIQERz1Bf5527M3K
install_name
win.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Windows Runtime
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/2164-1-0x0000000000920000-0x000000000097E000-memory.dmp	family_quasar
behavioral1/files/0x000f000000016d3f-5.dat	family_quasar
behavioral1/memory/2932-10-0x00000000003E0000-0x000000000043E000-memory.dmp	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
2932	win.exe

Loads dropped DLL 1 IoCs

pid	Process
2164	Client-built.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 1 IoCs

Web Service

T1102

flow	ioc
5	2.tcp.eu.ngrok.io

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

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	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	Client-built.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	win.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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
2292	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2292	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
2748	schtasks.exe
3056	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2164	Client-built.exe
Token: SeDebugPrivilege	2932	win.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2932	win.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2164 wrote to memory of 3056	2164	Client-built.exe	30
PID 2164 wrote to memory of 3056	2164	Client-built.exe	30
PID 2164 wrote to memory of 3056	2164	Client-built.exe	30
PID 2164 wrote to memory of 3056	2164	Client-built.exe	30
PID 2164 wrote to memory of 2932	2164	Client-built.exe	32
PID 2164 wrote to memory of 2932	2164	Client-built.exe	32
PID 2164 wrote to memory of 2932	2164	Client-built.exe	32
PID 2164 wrote to memory of 2932	2164	Client-built.exe	32
PID 2932 wrote to memory of 2748	2932	win.exe	33
PID 2932 wrote to memory of 2748	2932	win.exe	33
PID 2932 wrote to memory of 2748	2932	win.exe	33
PID 2932 wrote to memory of 2748	2932	win.exe	33
PID 2932 wrote to memory of 944	2932	win.exe	35
PID 2932 wrote to memory of 944	2932	win.exe	35
PID 2932 wrote to memory of 944	2932	win.exe	35
PID 2932 wrote to memory of 944	2932	win.exe	35
PID 2932 wrote to memory of 2636	2932	win.exe	37
PID 2932 wrote to memory of 2636	2932	win.exe	37
PID 2932 wrote to memory of 2636	2932	win.exe	37
PID 2932 wrote to memory of 2636	2932	win.exe	37
PID 2636 wrote to memory of 2196	2636	cmd.exe	39
PID 2636 wrote to memory of 2196	2636	cmd.exe	39
PID 2636 wrote to memory of 2196	2636	cmd.exe	39
PID 2636 wrote to memory of 2196	2636	cmd.exe	39
PID 2636 wrote to memory of 2292	2636	cmd.exe	40
PID 2636 wrote to memory of 2292	2636	cmd.exe	40
PID 2636 wrote to memory of 2292	2636	cmd.exe	40
PID 2636 wrote to memory of 2292	2636	cmd.exe	40

C:\Users\Admin\AppData\Local\Temp\Client-built.exe
"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2164
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks" /create /tn "Windows Runtime" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\Client-built.exe" /rl HIGHEST /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3056
- C:\Users\Admin\AppData\Roaming\Subdir\win.exe
  "C:\Users\Admin\AppData\Roaming\Subdir\win.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2932
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks" /create /tn "Windows Runtime" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Subdir\win.exe" /rl HIGHEST /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2748
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks" /delete /tn "Windows Runtime" /f
    3⤵
    - System Location Discovery: System Language Discovery
    PID:944
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\REpWcYPvGDUX.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2636
  - - C:\Windows\SysWOW64\chcp.com
      chcp 65001
      4⤵
      System Location Discovery: System Language Discovery
      PID:2196
  - - 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:2292

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

Web Service

T1102

Exfiltration

Impact

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Downloads

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

Filesize
259B

MD5
7e05008297c3cf6197469bf2deeb4ce8

SHA1
dcb5bab39a2c821d4a133d176b2748dba0cc7f65

SHA256
a84b494cd431ac950eaedc4d1140e580266cc47a247a3c83c25e075534c03d00

SHA512
65b0814ed7c80874cec8aa6ab6753be3e707dbf8920da71cc787d55f90ea22161c1d56505fd4b907b3be0bba7a536ab9c34284ba5b47f7fe1a45411c18fdbc6b

Download Submit
C:\Users\Admin\AppData\Roaming\Logs\12-16-~1

Filesize
224B

MD5
c2fad81f6e20f9f4c0c5610d67a6c652

SHA1
dd0bfe5f90b4731bb3893a8225c2e5e9011d031a

SHA256
bba030522e7def8bb3c3003e7f0312b5dfb07ba731c5a22f71d8e65ce5e85546

SHA512
f19965bbc1d089c14636c3d6a4a619d3a7004f9ea375de90fe7e8e9334993b6511bb47dab2d3e50dc7fe088f7adf9adfdf02a6f004ca7b51b93ed9482f84c86d

Download Submit
\Users\Admin\AppData\Roaming\Subdir\win.exe

Filesize
348KB

MD5
1b3caea7f3034ec10eecb722a369c652

SHA1
7bf564e5695c879a823068f19b9c5b25d9c3ed53

SHA256
4ca77febd10fb2e3a0ebd202ffd7efb798912d80c76ebdbc76b68b7b59de115a

SHA512
96d59d9a0bca26121ea0643840a3c568fb5ee5fa21cb4e6278cb229ad9b34c9445c22f406daa3c8c11f84f30995064612a1e24eff3211878eae2fd5c5b81a646

Download Submit
memory/2164-0-0x000000007437E000-0x000000007437F000-memory.dmp

Filesize
4KB

Download
memory/2164-1-0x0000000000920000-0x000000000097E000-memory.dmp

Filesize
376KB

Download
memory/2164-2-0x0000000074370000-0x0000000074A5E000-memory.dmp

Filesize
6.9MB

Download
memory/2164-13-0x0000000074370000-0x0000000074A5E000-memory.dmp

Filesize
6.9MB

Download
memory/2932-10-0x00000000003E0000-0x000000000043E000-memory.dmp

Filesize
376KB

Download
memory/2932-11-0x0000000074370000-0x0000000074A5E000-memory.dmp

Filesize
6.9MB

Download
memory/2932-12-0x0000000074370000-0x0000000074A5E000-memory.dmp

Filesize
6.9MB

Download
memory/2932-15-0x0000000074370000-0x0000000074A5E000-memory.dmp

Filesize
6.9MB

Download
memory/2932-25-0x0000000074370000-0x0000000074A5E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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