quasar | 939efe1ad093f827c7705afba9f48aea6a22b737cfdc8211ddba615138f8524b

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
12/06/2024, 07:49

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General

Target

Client-built.exe
Size

3.1MB
MD5

60e4077bc5c678f1f89f57715f3e979d
SHA1

9a49bd9e868772b1bc3db5e88736a807a64c29ed
SHA256

939efe1ad093f827c7705afba9f48aea6a22b737cfdc8211ddba615138f8524b
SHA512

708890550f5db31f840475f87039590956593a00d93c852fae59fc84764e51cadb9318bc52efc03becf648292803891bc70a6011622027ecd35ba054d43698cc
SSDEEP

49152:uv/I22SsaNYfdPBldt698dBcjHh0xNESEbk/iXLoGdtmTHHB72eh2NT:uvQ22SsaNYfdPBldt6+dBcjHCxW7

Score

10^/10

quasar niga spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

niga

172.31.32.1:4782

Mutex

d4922296-6b1c-4eb8-9900-8245ddd677af

Attributes

encryption_key
ED126047C03399C2E91AEC0EB5284E8942B0414E
install_name
asdkwk.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Quasar Client Startup
subdirectory
kreiasad

Signatures

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

Quasar payload 3 IoCs

resource	yara_rule
behavioral1/memory/2052-1-0x0000000001250000-0x0000000001574000-memory.dmp	family_quasar
behavioral1/files/0x00330000000164a9-6.dat	family_quasar
behavioral1/memory/2916-10-0x0000000000210000-0x0000000000534000-memory.dmp	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
2916	asdkwk.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File created	C:\Windows\system32\kreiasad\asdkwk.exe	Client-built.exe
File opened for modification	C:\Windows\system32\kreiasad\asdkwk.exe	Client-built.exe
File opened for modification	C:\Windows\system32\kreiasad	Client-built.exe
File opened for modification	C:\Windows\system32\kreiasad\asdkwk.exe	asdkwk.exe
File opened for modification	C:\Windows\system32\kreiasad	asdkwk.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2052	Client-built.exe
Token: SeDebugPrivilege	2916	asdkwk.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2916	asdkwk.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2916	asdkwk.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2052 wrote to memory of 2916	2052	Client-built.exe	28
PID 2052 wrote to memory of 2916	2052	Client-built.exe	28
PID 2052 wrote to memory of 2916	2052	Client-built.exe	28

C:\Users\Admin\AppData\Local\Temp\Client-built.exe
"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2052
- C:\Windows\system32\kreiasad\asdkwk.exe
  "C:\Windows\system32\kreiasad\asdkwk.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:2916

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\System32\kreiasad\asdkwk.exe

Filesize
3.1MB

MD5
60e4077bc5c678f1f89f57715f3e979d

SHA1
9a49bd9e868772b1bc3db5e88736a807a64c29ed

SHA256
939efe1ad093f827c7705afba9f48aea6a22b737cfdc8211ddba615138f8524b

SHA512
708890550f5db31f840475f87039590956593a00d93c852fae59fc84764e51cadb9318bc52efc03becf648292803891bc70a6011622027ecd35ba054d43698cc

Download Submit
memory/2052-0-0x000007FEF5E93000-0x000007FEF5E94000-memory.dmp

Filesize
4KB

Download
memory/2052-1-0x0000000001250000-0x0000000001574000-memory.dmp

Filesize
3.1MB

Download
memory/2052-2-0x000007FEF5E90000-0x000007FEF687C000-memory.dmp

Filesize
9.9MB

Download
memory/2052-9-0x000007FEF5E90000-0x000007FEF687C000-memory.dmp

Filesize
9.9MB

Download
memory/2916-8-0x000007FEF5E90000-0x000007FEF687C000-memory.dmp

Filesize
9.9MB

Download
memory/2916-10-0x0000000000210000-0x0000000000534000-memory.dmp

Filesize
3.1MB

Download
memory/2916-11-0x000007FEF5E90000-0x000007FEF687C000-memory.dmp

Filesize
9.9MB

Download
memory/2916-12-0x000007FEF5E90000-0x000007FEF687C000-memory.dmp

Filesize
9.9MB

Download