quasar | 0d6a9673eb3db83be393b8e85fceb372b5fbad79ce1c56bd92ea4b6b3166f657

General

Target

0d6a9673eb3db83be393b8e85fceb372b5fbad79ce1c56bd92ea4b6b3166f657.exe
Size

3.7MB
MD5

c7e6c951ca20c04d0d11b0a7d429f6d4
SHA1

e8ec50949c6f6a4e8727a5091f3307381be82839
SHA256

0d6a9673eb3db83be393b8e85fceb372b5fbad79ce1c56bd92ea4b6b3166f657
SHA512

da37fb5599f0a7f405871aff2899c8ece589ff64df1081b2aa3bb563b7f505e4da25ab892094edf7c856fed34f77e0fcec9f5c285af0713d2c57e3d843a0fe67
SSDEEP

98304:01bQRm7L4+pqEYlPqQ5QvWvrfZt7qA7XZ7eFq8u:0mRm7LjpqzkUQvWvrr7qmeRu

Score

10^/10

quasar es code discovery spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

ES CODE

C2

twart.myfirewall.org:9792

rency.ydns.eu:5287

wqo9.firewall-gateway.de:8841

code1.ydns.eu:5287

wqo9.firewall-gateway.de:9792

Mutex

025351e291-5d1041-4fa37-932c7-8L69aeiQec514992

Attributes

encryption_key
3145298725BA5E0DD56E87FFE3F8898EA81E6EDA
install_name
Excelworkbook.exe
log_directory
Logs
reconnect_delay
6000
startup_key
pdfdocument
subdirectory
SubDir

Signatures

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

Quasar payload 5 IoCs

resource	yara_rule
behavioral1/memory/3024-19-0x0000000000400000-0x0000000000724000-memory.dmp	family_quasar
behavioral1/memory/3024-17-0x0000000000400000-0x0000000000724000-memory.dmp	family_quasar
behavioral1/memory/3024-15-0x0000000000400000-0x0000000000724000-memory.dmp	family_quasar
behavioral1/memory/3024-11-0x0000000000400000-0x0000000000724000-memory.dmp	family_quasar
behavioral1/memory/3024-12-0x0000000000400000-0x0000000000724000-memory.dmp	family_quasar

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2808 set thread context of 3024	2808	0d6a9673eb3db83be393b8e85fceb372b5fbad79ce1c56bd92ea4b6b3166f657.exe	29

System Location Discovery: System Language Discovery 1 TTPs 3 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	0d6a9673eb3db83be393b8e85fceb372b5fbad79ce1c56bd92ea4b6b3166f657.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0d6a9673eb3db83be393b8e85fceb372b5fbad79ce1c56bd92ea4b6b3166f657.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2720	schtasks.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3024	0d6a9673eb3db83be393b8e85fceb372b5fbad79ce1c56bd92ea4b6b3166f657.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2808 wrote to memory of 3024	2808	0d6a9673eb3db83be393b8e85fceb372b5fbad79ce1c56bd92ea4b6b3166f657.exe	29
PID 2808 wrote to memory of 3024	2808	0d6a9673eb3db83be393b8e85fceb372b5fbad79ce1c56bd92ea4b6b3166f657.exe	29
PID 2808 wrote to memory of 3024	2808	0d6a9673eb3db83be393b8e85fceb372b5fbad79ce1c56bd92ea4b6b3166f657.exe	29
PID 2808 wrote to memory of 3024	2808	0d6a9673eb3db83be393b8e85fceb372b5fbad79ce1c56bd92ea4b6b3166f657.exe	29
PID 2808 wrote to memory of 3024	2808	0d6a9673eb3db83be393b8e85fceb372b5fbad79ce1c56bd92ea4b6b3166f657.exe	29
PID 2808 wrote to memory of 3024	2808	0d6a9673eb3db83be393b8e85fceb372b5fbad79ce1c56bd92ea4b6b3166f657.exe	29
PID 2808 wrote to memory of 3024	2808	0d6a9673eb3db83be393b8e85fceb372b5fbad79ce1c56bd92ea4b6b3166f657.exe	29
PID 2808 wrote to memory of 3024	2808	0d6a9673eb3db83be393b8e85fceb372b5fbad79ce1c56bd92ea4b6b3166f657.exe	29
PID 2808 wrote to memory of 3024	2808	0d6a9673eb3db83be393b8e85fceb372b5fbad79ce1c56bd92ea4b6b3166f657.exe	29
PID 3024 wrote to memory of 2720	3024	0d6a9673eb3db83be393b8e85fceb372b5fbad79ce1c56bd92ea4b6b3166f657.exe	30
PID 3024 wrote to memory of 2720	3024	0d6a9673eb3db83be393b8e85fceb372b5fbad79ce1c56bd92ea4b6b3166f657.exe	30
PID 3024 wrote to memory of 2720	3024	0d6a9673eb3db83be393b8e85fceb372b5fbad79ce1c56bd92ea4b6b3166f657.exe	30
PID 3024 wrote to memory of 2720	3024	0d6a9673eb3db83be393b8e85fceb372b5fbad79ce1c56bd92ea4b6b3166f657.exe	30

C:\Users\Admin\AppData\Local\Temp\0d6a9673eb3db83be393b8e85fceb372b5fbad79ce1c56bd92ea4b6b3166f657.exe
"C:\Users\Admin\AppData\Local\Temp\0d6a9673eb3db83be393b8e85fceb372b5fbad79ce1c56bd92ea4b6b3166f657.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2808
- C:\Users\Admin\AppData\Local\Temp\0d6a9673eb3db83be393b8e85fceb372b5fbad79ce1c56bd92ea4b6b3166f657.exe
  "C:\Users\Admin\AppData\Local\Temp\0d6a9673eb3db83be393b8e85fceb372b5fbad79ce1c56bd92ea4b6b3166f657.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3024
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks" /create /tn "pdfdocument" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Excelworkbook.exe" /rl HIGHEST /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2720

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2808-0-0x000000007430E000-0x000000007430F000-memory.dmp

Filesize
4KB

Download
memory/2808-1-0x00000000008A0000-0x0000000000C58000-memory.dmp

Filesize
3.7MB

Download
memory/2808-2-0x0000000074300000-0x00000000749EE000-memory.dmp

Filesize
6.9MB

Download
memory/2808-3-0x0000000000750000-0x000000000076E000-memory.dmp

Filesize
120KB

Download
memory/2808-4-0x000000007430E000-0x000000007430F000-memory.dmp

Filesize
4KB

Download
memory/2808-5-0x0000000074300000-0x00000000749EE000-memory.dmp

Filesize
6.9MB

Download
memory/2808-6-0x000000000B120000-0x000000000B488000-memory.dmp

Filesize
3.4MB

Download
memory/2808-22-0x0000000074300000-0x00000000749EE000-memory.dmp

Filesize
6.9MB

Download
memory/3024-19-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/3024-17-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/3024-15-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/3024-20-0x0000000074300000-0x00000000749EE000-memory.dmp

Filesize
6.9MB

Download
memory/3024-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3024-11-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/3024-9-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/3024-12-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/3024-21-0x0000000074300000-0x00000000749EE000-memory.dmp

Filesize
6.9MB

Download
memory/3024-7-0x0000000000400000-0x0000000000724000-memory.dmp

Filesize
3.1MB

Download
memory/3024-24-0x0000000074300000-0x00000000749EE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads