quasar | 0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f

General

Target

0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe
Size

877KB
MD5

af2cca9e175c1e73fdc927423bf34063
SHA1

9fb1313901e0ac98a4c5aa3da0c0223b4bfca1f2
SHA256

0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f
SHA512

8d57d681ad9bfb772fdf74b05a5012e0cac168db3265864de1b9898ac0126b8ac969a273060275309ab6e99087acfc7ea48a2c2b8d2bc70989ef546d98ab9b9f
SSDEEP

12288:7FY7UCaIsX+aC+fwRDV4gF03IFdfQeArznBKau8i1ozAq5uZCTN2E/Ep6A4W/89m:7FKraaaNwC3ktQeAwVGB5uaZ/of3

Score

10^/10

quasar aoy discovery spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

AOY

C2

87.120.120.27:61540

127.0.0.1:61540

87.121.86.205:61541

Mutex

QSR_MUTEX_NOCv4TURf46HbVbxyc

Attributes

encryption_key
fVsndNhImy9VosyZSQbQ
install_name
updates.exe
log_directory
Logs
reconnect_delay
4000
startup_key
Windows Update
subdirectory
Windows

Signatures

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

Quasar payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1568-6-0x0000000000400000-0x000000000045E000-memory.dmp	family_quasar
behavioral1/memory/1568-10-0x0000000000400000-0x000000000045E000-memory.dmp	family_quasar
behavioral1/memory/1568-8-0x0000000000400000-0x000000000045E000-memory.dmp	family_quasar

Executes dropped EXE 2 IoCs

Processes:

updates.exeupdates.exe

pid process

2848 updates.exe
2680 updates.exe
Loads dropped DLL 2 IoCs

Processes:

0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exeupdates.exe

pid process

1568 0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe
2848 updates.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

pid	process
2848	updates.exe
2680	updates.exe

pid	process
1568	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe
2848	updates.exe

flow	ioc
2	ip-api.com

Suspicious use of SetThreadContext 2 IoCs

Processes:

0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exeupdates.exe

description	pid	process	target process
PID 1236 set thread context of 1568	1236	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe
PID 2848 set thread context of 2680	2848	updates.exe	updates.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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

Processes:

0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exeschtasks.exeupdates.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	updates.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

Processes:

schtasks.exe

pid process

2156 schtasks.exe

pid	process
2156	schtasks.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exeupdates.exe

description	pid	process
Token: SeDebugPrivilege	1236	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe
Token: SeDebugPrivilege	1568	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe
Token: SeDebugPrivilege	2848	updates.exe

Suspicious use of WriteProcessMemory 32 IoCs

Processes:

0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exeupdates.exe

description	pid	process	target process
PID 1236 wrote to memory of 1568	1236	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe
PID 1236 wrote to memory of 1568	1236	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe
PID 1236 wrote to memory of 1568	1236	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe
PID 1236 wrote to memory of 1568	1236	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe
PID 1236 wrote to memory of 1568	1236	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe
PID 1236 wrote to memory of 1568	1236	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe
PID 1236 wrote to memory of 1568	1236	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe
PID 1236 wrote to memory of 1568	1236	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe
PID 1236 wrote to memory of 1568	1236	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe
PID 1568 wrote to memory of 2156	1568	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe	schtasks.exe
PID 1568 wrote to memory of 2156	1568	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe	schtasks.exe
PID 1568 wrote to memory of 2156	1568	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe	schtasks.exe
PID 1568 wrote to memory of 2156	1568	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe	schtasks.exe
PID 1568 wrote to memory of 2848	1568	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe	updates.exe
PID 1568 wrote to memory of 2848	1568	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe	updates.exe
PID 1568 wrote to memory of 2848	1568	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe	updates.exe
PID 1568 wrote to memory of 2848	1568	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe	updates.exe
PID 1568 wrote to memory of 2848	1568	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe	updates.exe
PID 1568 wrote to memory of 2848	1568	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe	updates.exe
PID 1568 wrote to memory of 2848	1568	0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe	updates.exe
PID 2848 wrote to memory of 2680	2848	updates.exe	updates.exe
PID 2848 wrote to memory of 2680	2848	updates.exe	updates.exe
PID 2848 wrote to memory of 2680	2848	updates.exe	updates.exe
PID 2848 wrote to memory of 2680	2848	updates.exe	updates.exe
PID 2848 wrote to memory of 2680	2848	updates.exe	updates.exe
PID 2848 wrote to memory of 2680	2848	updates.exe	updates.exe
PID 2848 wrote to memory of 2680	2848	updates.exe	updates.exe
PID 2848 wrote to memory of 2680	2848	updates.exe	updates.exe
PID 2848 wrote to memory of 2680	2848	updates.exe	updates.exe
PID 2848 wrote to memory of 2680	2848	updates.exe	updates.exe
PID 2848 wrote to memory of 2680	2848	updates.exe	updates.exe
PID 2848 wrote to memory of 2680	2848	updates.exe	updates.exe

C:\Users\Admin\AppData\Local\Temp\0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe
"C:\Users\Admin\AppData\Local\Temp\0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1236
- C:\Users\Admin\AppData\Local\Temp\0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe
  C:\Users\Admin\AppData\Local\Temp\0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1568
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks" /create /tn "Windows Update" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f.exe" /rl HIGHEST /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2156
- - C:\Users\Admin\AppData\Roaming\Windows\updates.exe
    "C:\Users\Admin\AppData\Roaming\Windows\updates.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2848
  - - C:\Users\Admin\AppData\Roaming\Windows\updates.exe
      C:\Users\Admin\AppData\Roaming\Windows\updates.exe
      4⤵
      Executes dropped EXE
      PID:2680

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

\Users\Admin\AppData\Roaming\Windows\updates.exe

Filesize
877KB

MD5
af2cca9e175c1e73fdc927423bf34063

SHA1
9fb1313901e0ac98a4c5aa3da0c0223b4bfca1f2

SHA256
0d4777cd136637a6a622af6891450a910bfb908743c1586b987ee75f0d923c9f

SHA512
8d57d681ad9bfb772fdf74b05a5012e0cac168db3265864de1b9898ac0126b8ac969a273060275309ab6e99087acfc7ea48a2c2b8d2bc70989ef546d98ab9b9f

Download Submit
memory/1236-4-0x0000000004500000-0x0000000004606000-memory.dmp

Filesize
1.0MB

Download
memory/1236-12-0x0000000074340000-0x0000000074A2E000-memory.dmp

Filesize
6.9MB

Download
memory/1236-3-0x0000000074340000-0x0000000074A2E000-memory.dmp

Filesize
6.9MB

Download
memory/1236-0-0x000000007434E000-0x000000007434F000-memory.dmp

Filesize
4KB

Download
memory/1236-5-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1236-1-0x0000000000AC0000-0x0000000000BA2000-memory.dmp

Filesize
904KB

Download
memory/1236-2-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/1568-8-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/1568-10-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/1568-11-0x0000000074340000-0x0000000074A2E000-memory.dmp

Filesize
6.9MB

Download
memory/1568-13-0x0000000074340000-0x0000000074A2E000-memory.dmp

Filesize
6.9MB

Download
memory/1568-6-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/1568-21-0x0000000074340000-0x0000000074A2E000-memory.dmp

Filesize
6.9MB

Download
memory/2848-20-0x0000000001190000-0x0000000001272000-memory.dmp

Filesize
904KB

Download
memory/2848-22-0x0000000006EE0000-0x0000000006FE6000-memory.dmp

Filesize
1.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads