quasar | d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358

Analysis

max time kernel
144s
max time network
284s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
25-11-2022 03:50

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General

Target

d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe
Size

1.7MB
MD5

21eedc621939b5e997b75196b6621b03
SHA1

f3fc557364510567815a5e53730a339cc68b572d
SHA256

d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358
SHA512

05daf1bb49ffd48daf36957ae1b2e8a5f49033b809f0c400fdb1a0d3a492d91e638c0d0253fdbf2bd2af6e0991b3b63d83264a8e7ad195d50e2637cac3f7ec5f
SSDEEP

24576:PUxJIRCRoenYQb6VOJ8Kgn1beVuumyEU:

Score

10^/10

quasar cio persistence spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.0

Botnet

Cio

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 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3764-277-0x000000000047E79E-mapping.dmp	family_quasar
behavioral2/memory/3764-312-0x0000000000400000-0x0000000000484000-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:

d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2482096546-1136599444-1359412500-1000\Software\Microsoft\Windows\CurrentVersion\Run\Jlnprgcxco = "\"C:\\Users\\Admin\\AppData\\Roaming\\Eqbuy\\Jlnprgcxco.exe\""	d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe

Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

11 api.ipify.org
12 api.ipify.org

flow	ioc
11	api.ipify.org
12	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

Processes:

d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe

description	pid	process	target process
PID 2196 set thread context of 3764	2196	d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe	d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.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 4 IoCs

Processes:

d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exepowershell.exe

pid process

2196 d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe
4248 powershell.exe
4248 powershell.exe
4248 powershell.exe

pid	process
2196	d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe
4248	powershell.exe
4248	powershell.exe
4248	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exepowershell.exed3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe

description	pid	process
Token: SeDebugPrivilege	2196	d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe
Token: SeDebugPrivilege	4248	powershell.exe
Token: SeDebugPrivilege	3764	d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe

pid process

3764 d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe

pid	process
3764	d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe

description	pid	process	target process
PID 2196 wrote to memory of 4248	2196	d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe	powershell.exe
PID 2196 wrote to memory of 4248	2196	d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe	powershell.exe
PID 2196 wrote to memory of 4248	2196	d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe	powershell.exe
PID 2196 wrote to memory of 3764	2196	d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe	d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe
PID 2196 wrote to memory of 3764	2196	d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe	d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe
PID 2196 wrote to memory of 3764	2196	d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe	d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe
PID 2196 wrote to memory of 3764	2196	d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe	d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe
PID 2196 wrote to memory of 3764	2196	d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe	d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe
PID 2196 wrote to memory of 3764	2196	d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe	d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe
PID 2196 wrote to memory of 3764	2196	d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe	d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe
PID 2196 wrote to memory of 3764	2196	d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe	d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe

C:\Users\Admin\AppData\Local\Temp\d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe
"C:\Users\Admin\AppData\Local\Temp\d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2196

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:4248

C:\Users\Admin\AppData\Local\Temp\d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe
C:\Users\Admin\AppData\Local\Temp\d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe
2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3764

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\d3709777baef696ae4502fc371784000200245d6769ba94e1a80d21d2b800358.exe.log
Filesize
1KB

MD5
5c01a57bb6376dc958d99ed7a67870ff

SHA1
d092c7dfd148ac12b086049d215e6b00bd78628d

SHA256
cb8fd245425e915bfc5ff411f26303f7cb4a30ed37f2ea4a2f0a12501aa5f2a4

SHA512
e4e3a4b74f8e209573cce58b572c1f71653e6f4df98f98c5a1cecdf76c9ffb91d5e6994c89df41c9f3613a0584301a56ca922ab7497a434e108b28dcd7d33038

Download Submit
memory/2196-163-0x0000000005ED0000-0x0000000005F62000-memory.dmp

Filesize
584KB

Download
memory/2196-146-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-122-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-123-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-124-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-125-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-126-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-127-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-128-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-129-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-130-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-131-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-132-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-133-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-134-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-135-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-136-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-164-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-138-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-139-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-140-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-142-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-141-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-143-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-144-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-145-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-120-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-147-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-148-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-149-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-150-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-151-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-152-0x0000000000A90000-0x0000000000C50000-memory.dmp

Filesize
1.8MB

Download
memory/2196-153-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-154-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-155-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-156-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-157-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-158-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-159-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-160-0x00000000054E0000-0x00000000055C2000-memory.dmp

Filesize
904KB

Download
memory/2196-161-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-172-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-121-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-137-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-165-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-166-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-167-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-168-0x0000000005D50000-0x0000000005D72000-memory.dmp

Filesize
136KB

Download
memory/2196-169-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-170-0x0000000005F60000-0x00000000062B0000-memory.dmp

Filesize
3.3MB

Download
memory/2196-171-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-162-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-173-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-174-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-175-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-176-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-177-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-178-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-179-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-180-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-181-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-182-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-183-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-184-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-185-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-186-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-187-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/2196-188-0x0000000077D40000-0x0000000077ECE000-memory.dmp

Filesize
1.6MB

Download
memory/3764-338-0x00000000058B0000-0x0000000005EB6000-memory.dmp

Filesize
6.0MB

Download
memory/3764-341-0x0000000005550000-0x0000000005602000-memory.dmp

Filesize
712KB

Download
memory/3764-316-0x0000000004DA0000-0x000000000529E000-memory.dmp

Filesize
5.0MB

Download
memory/3764-317-0x00000000049D0000-0x0000000004A62000-memory.dmp

Filesize
584KB

Download
memory/3764-277-0x000000000047E79E-mapping.dmp

Download
memory/3764-340-0x0000000005300000-0x0000000005350000-memory.dmp

Filesize
320KB

Download
memory/3764-334-0x00000000048E0000-0x00000000048EA000-memory.dmp

Filesize
40KB

Download
memory/3764-312-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/4248-189-0x0000000000000000-mapping.dmp

Download
memory/4248-270-0x0000000007EF0000-0x0000000007F0A000-memory.dmp

Filesize
104KB

Download
memory/4248-230-0x00000000075D0000-0x0000000007BF8000-memory.dmp

Filesize
6.2MB

Download
memory/4248-225-0x0000000006E10000-0x0000000006E46000-memory.dmp

Filesize
216KB

Download
memory/4248-249-0x0000000007E60000-0x0000000007EC6000-memory.dmp

Filesize
408KB

Download
memory/4248-253-0x0000000007E30000-0x0000000007E4C000-memory.dmp

Filesize
112KB

Download
memory/4248-254-0x0000000008890000-0x00000000088DB000-memory.dmp

Filesize
300KB

Download
memory/4248-258-0x00000000085A0000-0x0000000008616000-memory.dmp

Filesize
472KB

Download
memory/4248-269-0x0000000009CF0000-0x000000000A368000-memory.dmp

Filesize
6.5MB

Download
memory/4248-250-0x0000000007C80000-0x0000000007CE6000-memory.dmp

Filesize
408KB

Download