quasar | 53b736e0f18bb8d3026c5a0ff66843ed927120ec55e4a099c0b411214e6cbd88

Analysis

max time kernel
54s
max time network
282s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
23/11/2022, 22:17

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General

Target

53b736e0f18bb8d3026c5a0ff66843ed927120ec55e4a099c0b411214e6cbd88.exe
Size

1.7MB
MD5

27973761305381b8a1888fa5fba466c0
SHA1

8c3d7fcec5e2bf468edf04de4640e8b5b0cbb160
SHA256

53b736e0f18bb8d3026c5a0ff66843ed927120ec55e4a099c0b411214e6cbd88
SHA512

e38a991050d49668135466af5f885f0623614b13cfd26c20926fa7e164271de9a6ec60e9ac6022e07351f8d42aeb25be914e7de2887eeca24953c8c94f7d68de
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

resource	yara_rule
behavioral2/memory/2964-272-0x000000000047E79E-mapping.dmp	family_quasar
behavioral2/memory/2964-307-0x0000000000400000-0x0000000000484000-memory.dmp	family_quasar

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3844063266-715245855-4050956231-1000\Software\Microsoft\Windows\CurrentVersion\Run\Jlnprgcxco = "\"C:\\Users\\Admin\\AppData\\Roaming\\Eqbuy\\Jlnprgcxco.exe\""	53b736e0f18bb8d3026c5a0ff66843ed927120ec55e4a099c0b411214e6cbd88.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.

flow	ioc
7	api.ipify.org
8	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3844 set thread context of 2964	3844	53b736e0f18bb8d3026c5a0ff66843ed927120ec55e4a099c0b411214e6cbd88.exe	68

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

pid	Process
3844	53b736e0f18bb8d3026c5a0ff66843ed927120ec55e4a099c0b411214e6cbd88.exe
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3844	53b736e0f18bb8d3026c5a0ff66843ed927120ec55e4a099c0b411214e6cbd88.exe
Token: SeDebugPrivilege	4244	powershell.exe
Token: SeDebugPrivilege	2964	53b736e0f18bb8d3026c5a0ff66843ed927120ec55e4a099c0b411214e6cbd88.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2964	53b736e0f18bb8d3026c5a0ff66843ed927120ec55e4a099c0b411214e6cbd88.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3844 wrote to memory of 4244	3844	53b736e0f18bb8d3026c5a0ff66843ed927120ec55e4a099c0b411214e6cbd88.exe	66
PID 3844 wrote to memory of 4244	3844	53b736e0f18bb8d3026c5a0ff66843ed927120ec55e4a099c0b411214e6cbd88.exe	66
PID 3844 wrote to memory of 4244	3844	53b736e0f18bb8d3026c5a0ff66843ed927120ec55e4a099c0b411214e6cbd88.exe	66
PID 3844 wrote to memory of 2964	3844	53b736e0f18bb8d3026c5a0ff66843ed927120ec55e4a099c0b411214e6cbd88.exe	68
PID 3844 wrote to memory of 2964	3844	53b736e0f18bb8d3026c5a0ff66843ed927120ec55e4a099c0b411214e6cbd88.exe	68
PID 3844 wrote to memory of 2964	3844	53b736e0f18bb8d3026c5a0ff66843ed927120ec55e4a099c0b411214e6cbd88.exe	68
PID 3844 wrote to memory of 2964	3844	53b736e0f18bb8d3026c5a0ff66843ed927120ec55e4a099c0b411214e6cbd88.exe	68
PID 3844 wrote to memory of 2964	3844	53b736e0f18bb8d3026c5a0ff66843ed927120ec55e4a099c0b411214e6cbd88.exe	68
PID 3844 wrote to memory of 2964	3844	53b736e0f18bb8d3026c5a0ff66843ed927120ec55e4a099c0b411214e6cbd88.exe	68
PID 3844 wrote to memory of 2964	3844	53b736e0f18bb8d3026c5a0ff66843ed927120ec55e4a099c0b411214e6cbd88.exe	68
PID 3844 wrote to memory of 2964	3844	53b736e0f18bb8d3026c5a0ff66843ed927120ec55e4a099c0b411214e6cbd88.exe	68

C:\Users\Admin\AppData\Local\Temp\53b736e0f18bb8d3026c5a0ff66843ed927120ec55e4a099c0b411214e6cbd88.exe
"C:\Users\Admin\AppData\Local\Temp\53b736e0f18bb8d3026c5a0ff66843ed927120ec55e4a099c0b411214e6cbd88.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3844
- 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:4244
- C:\Users\Admin\AppData\Local\Temp\53b736e0f18bb8d3026c5a0ff66843ed927120ec55e4a099c0b411214e6cbd88.exe
  C:\Users\Admin\AppData\Local\Temp\53b736e0f18bb8d3026c5a0ff66843ed927120ec55e4a099c0b411214e6cbd88.exe
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2964

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\53b736e0f18bb8d3026c5a0ff66843ed927120ec55e4a099c0b411214e6cbd88.exe.log

Filesize
1KB

MD5
5c01a57bb6376dc958d99ed7a67870ff

SHA1
d092c7dfd148ac12b086049d215e6b00bd78628d

SHA256
cb8fd245425e915bfc5ff411f26303f7cb4a30ed37f2ea4a2f0a12501aa5f2a4

SHA512
e4e3a4b74f8e209573cce58b572c1f71653e6f4df98f98c5a1cecdf76c9ffb91d5e6994c89df41c9f3613a0584301a56ca922ab7497a434e108b28dcd7d33038

Download Submit
memory/2964-307-0x0000000000400000-0x0000000000484000-memory.dmp

Filesize
528KB

Download
memory/2964-311-0x0000000005530000-0x0000000005A2E000-memory.dmp

Filesize
5.0MB

Download
memory/2964-312-0x00000000050D0000-0x0000000005162000-memory.dmp

Filesize
584KB

Download
memory/2964-336-0x0000000005D30000-0x0000000005DE2000-memory.dmp

Filesize
712KB

Download
memory/2964-335-0x0000000005A80000-0x0000000005AD0000-memory.dmp

Filesize
320KB

Download
memory/2964-333-0x0000000006040000-0x0000000006646000-memory.dmp

Filesize
6.0MB

Download
memory/2964-329-0x0000000005050000-0x000000000505A000-memory.dmp

Filesize
40KB

Download
memory/3844-154-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-147-0x00000000005E0000-0x00000000007A0000-memory.dmp

Filesize
1.8MB

Download
memory/3844-121-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-122-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-123-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-124-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-125-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-126-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-127-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-128-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-129-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-130-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-132-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-131-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-133-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-134-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-136-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-135-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-137-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-138-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-139-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-140-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-141-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-142-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-143-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-144-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-145-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-146-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-158-0x00000000059F0000-0x0000000005A82000-memory.dmp

Filesize
584KB

Download
memory/3844-148-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-149-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-150-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-151-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-152-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-153-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-119-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-155-0x0000000005050000-0x0000000005132000-memory.dmp

Filesize
904KB

Download
memory/3844-156-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-120-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-157-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-182-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-160-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-161-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-162-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-163-0x0000000005AF0000-0x0000000005B12000-memory.dmp

Filesize
136KB

Download
memory/3844-164-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-165-0x0000000005B20000-0x0000000005E70000-memory.dmp

Filesize
3.3MB

Download
memory/3844-166-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-167-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-168-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-169-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-170-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-171-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-172-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-173-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-174-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-175-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-176-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-177-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-178-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-179-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-180-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-181-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-159-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-183-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-115-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-116-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-117-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/3844-118-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/4244-245-0x0000000007830000-0x0000000007896000-memory.dmp

Filesize
408KB

Download
memory/4244-244-0x0000000006FD0000-0x0000000007036000-memory.dmp

Filesize
408KB

Download
memory/4244-225-0x00000000071F0000-0x0000000007818000-memory.dmp

Filesize
6.2MB

Download
memory/4244-220-0x0000000004900000-0x0000000004936000-memory.dmp

Filesize
216KB

Download
memory/4244-248-0x00000000071C0000-0x00000000071DC000-memory.dmp

Filesize
112KB

Download
memory/4244-249-0x00000000080D0000-0x000000000811B000-memory.dmp

Filesize
300KB

Download
memory/4244-253-0x0000000008120000-0x0000000008196000-memory.dmp

Filesize
472KB

Download
memory/4244-264-0x00000000097C0000-0x0000000009E38000-memory.dmp

Filesize
6.5MB

Download
memory/4244-265-0x0000000008F00000-0x0000000008F1A000-memory.dmp

Filesize
104KB

Download