quasar | e2ccf4d25499df5ed69b0b1a8d78c159c6873a86bfe8b3e07eae41516b3d6709

Analysis

max time kernel
48s
max time network
40s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
02-07-2024 17:34

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General

Target

bound.exe
Size

348KB
MD5

0ae23c1f2280f21b756d59c3590f1f9e
SHA1

b2f42f4f3cc053a41c2c5a4b981e3951ece66632
SHA256

e2ccf4d25499df5ed69b0b1a8d78c159c6873a86bfe8b3e07eae41516b3d6709
SHA512

5989bd7704a9f7cfb608d347f2c4ad262165f093078a55675418953b81a1346a80fb8c61031b8a2ed6d8548376691b1f2d8e076b0d77964d17178292d931aae2
SSDEEP

6144:nm2NHXf500MCB/7JWQ7vVjvVDpGbMODP43YxpG+kN8/xM/y:Nd5089W8pMDPZxJ085uy

Score

10^/10

quasar new spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

NEW

hanezack.ddns.net:1005

Mutex

QSR_MUTEX_pnKSaWFUwQX1pUWVc9

Attributes

encryption_key
dFDp0i8Pk4OpqeTcstEK
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 1 IoCs

Processes:

resource yara_rule

behavioral1/memory/2344-1-0x0000000000B60000-0x0000000000BBE000-memory.dmp family_quasar
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

2548 cmd.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.

Processes:

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
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

2956 PING.EXE
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

bound.exe

description pid process

Token: SeDebugPrivilege 2344 bound.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

bound.exe

pid process

2344 bound.exe

resource	yara_rule
behavioral1/memory/2344-1-0x0000000000B60000-0x0000000000BBE000-memory.dmp	family_quasar

pid	process
2548	cmd.exe

flow	ioc
2	ip-api.com

pid	process
2956	PING.EXE

description	pid	process
Token: SeDebugPrivilege	2344	bound.exe

pid	process
2344	bound.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

bound.execmd.exe

description	pid	process	target process
PID 2344 wrote to memory of 2548	2344	bound.exe	cmd.exe
PID 2344 wrote to memory of 2548	2344	bound.exe	cmd.exe
PID 2344 wrote to memory of 2548	2344	bound.exe	cmd.exe
PID 2344 wrote to memory of 2548	2344	bound.exe	cmd.exe
PID 2548 wrote to memory of 1552	2548	cmd.exe	chcp.com
PID 2548 wrote to memory of 1552	2548	cmd.exe	chcp.com
PID 2548 wrote to memory of 1552	2548	cmd.exe	chcp.com
PID 2548 wrote to memory of 1552	2548	cmd.exe	chcp.com
PID 2548 wrote to memory of 2956	2548	cmd.exe	PING.EXE
PID 2548 wrote to memory of 2956	2548	cmd.exe	PING.EXE
PID 2548 wrote to memory of 2956	2548	cmd.exe	PING.EXE
PID 2548 wrote to memory of 2956	2548	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\bound.exe
"C:\Users\Admin\AppData\Local\Temp\bound.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2344

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\12a65O83u0Rb.bat" "
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:2548

C:\Windows\SysWOW64\chcp.com
chcp 65001
3⤵
PID:1552

C:\Windows\SysWOW64\PING.EXE
ping -n 10 localhost
3⤵
- Runs ping.exe
PID:2956

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Remote System Discovery

T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\12a65O83u0Rb.bat
Filesize
257B

MD5
8683ea09aee1d7a56a06c46e1d8144a7

SHA1
0912520fd9d16e6514f23920d26af071766e650e

SHA256
cc7e1b8463385e328cb5892cf4be88873d5155eb9a25c480fa55f6b40589b73c

SHA512
df833c7dc8076f833a5c461fce928b49193b359403eb86b6645f5ec622dd34beec4e55ef8da3a6a5cc2081793fe47e48ebe06ae7fd87fd68978a19ff6c3f05c0

Download Submit
C:\Users\Admin\AppData\Roaming\Logs\07-02-~1
Filesize
224B

MD5
400614406d464d9db2ac2df8c36e013a

SHA1
575624fb44150324e78ee114dc90d2ff47110176

SHA256
8abcc4293f2b33bdde6504dd1ce04345a3a08f3875f7b5ec4def2d03797fe5f2

SHA512
eb3ec09ae61e9215a6d522e0cb3e00b33b2df255f562e29d17da0af930cf3898c920465f0dd508cfa15bf9f871e4df21607e31cbcc857309e7b436b6118cdf89

Download Submit
memory/2344-0-0x000000007476E000-0x000000007476F000-memory.dmp

Filesize
4KB

Download
memory/2344-1-0x0000000000B60000-0x0000000000BBE000-memory.dmp

Filesize
376KB

Download
memory/2344-2-0x0000000074760000-0x0000000074E4E000-memory.dmp

Filesize
6.9MB

Download
memory/2344-4-0x000000007476E000-0x000000007476F000-memory.dmp

Filesize
4KB

Download
memory/2344-5-0x0000000074760000-0x0000000074E4E000-memory.dmp

Filesize
6.9MB

Download
memory/2344-15-0x0000000074760000-0x0000000074E4E000-memory.dmp

Filesize
6.9MB

Download