quasar | 2eda48729dc77cb35b9e5cabda7a63c0daf839df13d4047c70b8dbfa288963ec

General

Target

2eda48729dc77cb35b9e5cabda7a63c0daf839df13d4047c70b8dbfa288963ecN.exe
Size

341KB
MD5

b8507ead18b15a807cafd59c14315120
SHA1

0035b089f47d010865b1792e1e8b3774e292f710
SHA256

2eda48729dc77cb35b9e5cabda7a63c0daf839df13d4047c70b8dbfa288963ec
SHA512

80257e8a53e173cd218bb48c9b7cfad6dddb99234c2babef4b0ae1e219b42e1ef47a4851210aa5ec3a52e82da4412b488142ec4d4345e65fa8e7385eb5b655ce
SSDEEP

6144:oLRmi19KZRIo4sY7d+nTzTzTFPsWo2bMmIo7+vfep0:m19KIonkditIoufI0

Score

10^/10

quasar chamutlda discovery spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

CHAMUTLDA

C2

xowite7203-56864.portmap.host:56864

Mutex

QSR_MUTEX_b1MzVBeB2fgsMGAB8R

Attributes

encryption_key
A4r7dFvwva7oUnxJWxHI
install_name
Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
System
subdirectory
System32

Signatures

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

Quasar payload 3 IoCs

resource	yara_rule
behavioral1/memory/1632-1-0x0000000000370000-0x00000000003CC000-memory.dmp	family_quasar
behavioral1/files/0x0008000000018683-4.dat	family_quasar
behavioral1/memory/2400-9-0x0000000001080000-0x00000000010DC000-memory.dmp	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
2400	Client.exe

Loads dropped DLL 1 IoCs

pid	Process
1632	2eda48729dc77cb35b9e5cabda7a63c0daf839df13d4047c70b8dbfa288963ecN.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.

flow	ioc
2	ip-api.com

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2eda48729dc77cb35b9e5cabda7a63c0daf839df13d4047c70b8dbfa288963ecN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Client.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2012	schtasks.exe
2896	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1632	2eda48729dc77cb35b9e5cabda7a63c0daf839df13d4047c70b8dbfa288963ecN.exe
Token: SeDebugPrivilege	2400	Client.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1632 wrote to memory of 2012	1632	2eda48729dc77cb35b9e5cabda7a63c0daf839df13d4047c70b8dbfa288963ecN.exe	31
PID 1632 wrote to memory of 2012	1632	2eda48729dc77cb35b9e5cabda7a63c0daf839df13d4047c70b8dbfa288963ecN.exe	31
PID 1632 wrote to memory of 2012	1632	2eda48729dc77cb35b9e5cabda7a63c0daf839df13d4047c70b8dbfa288963ecN.exe	31
PID 1632 wrote to memory of 2012	1632	2eda48729dc77cb35b9e5cabda7a63c0daf839df13d4047c70b8dbfa288963ecN.exe	31
PID 1632 wrote to memory of 2400	1632	2eda48729dc77cb35b9e5cabda7a63c0daf839df13d4047c70b8dbfa288963ecN.exe	33
PID 1632 wrote to memory of 2400	1632	2eda48729dc77cb35b9e5cabda7a63c0daf839df13d4047c70b8dbfa288963ecN.exe	33
PID 1632 wrote to memory of 2400	1632	2eda48729dc77cb35b9e5cabda7a63c0daf839df13d4047c70b8dbfa288963ecN.exe	33
PID 1632 wrote to memory of 2400	1632	2eda48729dc77cb35b9e5cabda7a63c0daf839df13d4047c70b8dbfa288963ecN.exe	33
PID 2400 wrote to memory of 2896	2400	Client.exe	34
PID 2400 wrote to memory of 2896	2400	Client.exe	34
PID 2400 wrote to memory of 2896	2400	Client.exe	34
PID 2400 wrote to memory of 2896	2400	Client.exe	34

C:\Users\Admin\AppData\Local\Temp\2eda48729dc77cb35b9e5cabda7a63c0daf839df13d4047c70b8dbfa288963ecN.exe
"C:\Users\Admin\AppData\Local\Temp\2eda48729dc77cb35b9e5cabda7a63c0daf839df13d4047c70b8dbfa288963ecN.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1632
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks" /create /tn "System" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\2eda48729dc77cb35b9e5cabda7a63c0daf839df13d4047c70b8dbfa288963ecN.exe" /rl HIGHEST /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2012
- C:\Users\Admin\AppData\Roaming\System32\Client.exe
  "C:\Users\Admin\AppData\Roaming\System32\Client.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2400
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks" /create /tn "System" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\System32\Client.exe" /rl HIGHEST /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2896

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\System32\Client.exe

Filesize
341KB

MD5
b8507ead18b15a807cafd59c14315120

SHA1
0035b089f47d010865b1792e1e8b3774e292f710

SHA256
2eda48729dc77cb35b9e5cabda7a63c0daf839df13d4047c70b8dbfa288963ec

SHA512
80257e8a53e173cd218bb48c9b7cfad6dddb99234c2babef4b0ae1e219b42e1ef47a4851210aa5ec3a52e82da4412b488142ec4d4345e65fa8e7385eb5b655ce

Download Submit
memory/1632-0-0x0000000073CCE000-0x0000000073CCF000-memory.dmp

Filesize
4KB

Download
memory/1632-1-0x0000000000370000-0x00000000003CC000-memory.dmp

Filesize
368KB

Download
memory/1632-2-0x0000000073CC0000-0x00000000743AE000-memory.dmp

Filesize
6.9MB

Download
memory/1632-11-0x0000000073CC0000-0x00000000743AE000-memory.dmp

Filesize
6.9MB

Download
memory/2400-10-0x0000000073CC0000-0x00000000743AE000-memory.dmp

Filesize
6.9MB

Download
memory/2400-9-0x0000000001080000-0x00000000010DC000-memory.dmp

Filesize
368KB

Download
memory/2400-12-0x0000000073CC0000-0x00000000743AE000-memory.dmp

Filesize
6.9MB

Download
memory/2400-13-0x0000000073CC0000-0x00000000743AE000-memory.dmp

Filesize
6.9MB

Download
memory/2400-14-0x0000000073CC0000-0x00000000743AE000-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