quasar | 0afb352281aa629284ef1bbf1cbe7a29a33590765103bad4bcb937c57500bd8d

General

Target

0afb352281aa629284ef1bbf1cbe7a29a33590765103bad4bcb937c57500bd8d.exe
Size

349KB
MD5

faab74e4283cc335a05f9ba97ab05948
SHA1

0d5890aaa2e2ab227cb8ada19740946609db1d3d
SHA256

0afb352281aa629284ef1bbf1cbe7a29a33590765103bad4bcb937c57500bd8d
SHA512

8092b1b832d9746374df77a3e22d3fb48557c0dd09c9fdd6e2f852d6cdad8236f6f229851a9d915ebe44c8e154935175cc1551ccd4c7f6fb8a9ef9d337d8ac30
SSDEEP

6144:JK2J10qdSlEc39HGICa7TE3nKoICeeS2bwqHO4baeLV9w0Zt:JKFL03nKoICeeSuOSLg0Zt

Score

10^/10

quasar cotizaciones23 discovery spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Cotizaciones23

C2

192.168.1.198:4782

Mutex

QSR_MUTEX_GWVYbrP9HvYlifSt0V

Attributes

encryption_key
qJrrGgGodx4vKyBDIosm
install_name
Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
client
subdirectory
cles

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/3064-1-0x0000000000DA0000-0x0000000000DFE000-memory.dmp	family_quasar
behavioral1/files/0x002a0000000195bd-5.dat	family_quasar
behavioral1/memory/2252-11-0x0000000000870000-0x00000000008CE000-memory.dmp	family_quasar

Executes dropped EXE 1 IoCs

Processes:

Client.exe

pid	Process
2252	Client.exe

Loads dropped DLL 1 IoCs

Processes:

0afb352281aa629284ef1bbf1cbe7a29a33590765103bad4bcb937c57500bd8d.exe

pid	Process
3064	0afb352281aa629284ef1bbf1cbe7a29a33590765103bad4bcb937c57500bd8d.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

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:

0afb352281aa629284ef1bbf1cbe7a29a33590765103bad4bcb937c57500bd8d.exeschtasks.exeClient.exeschtasks.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0afb352281aa629284ef1bbf1cbe7a29a33590765103bad4bcb937c57500bd8d.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

Processes:

schtasks.exeschtasks.exe

pid	Process
2912	schtasks.exe
1892	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

0afb352281aa629284ef1bbf1cbe7a29a33590765103bad4bcb937c57500bd8d.exeClient.exe

description	pid	Process
Token: SeDebugPrivilege	3064	0afb352281aa629284ef1bbf1cbe7a29a33590765103bad4bcb937c57500bd8d.exe
Token: SeDebugPrivilege	2252	Client.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Client.exe

pid	Process
2252	Client.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

0afb352281aa629284ef1bbf1cbe7a29a33590765103bad4bcb937c57500bd8d.exeClient.exe

description	pid	Process	procid_target
PID 3064 wrote to memory of 2912	3064	0afb352281aa629284ef1bbf1cbe7a29a33590765103bad4bcb937c57500bd8d.exe	31
PID 3064 wrote to memory of 2912	3064	0afb352281aa629284ef1bbf1cbe7a29a33590765103bad4bcb937c57500bd8d.exe	31
PID 3064 wrote to memory of 2912	3064	0afb352281aa629284ef1bbf1cbe7a29a33590765103bad4bcb937c57500bd8d.exe	31
PID 3064 wrote to memory of 2912	3064	0afb352281aa629284ef1bbf1cbe7a29a33590765103bad4bcb937c57500bd8d.exe	31
PID 3064 wrote to memory of 2252	3064	0afb352281aa629284ef1bbf1cbe7a29a33590765103bad4bcb937c57500bd8d.exe	33
PID 3064 wrote to memory of 2252	3064	0afb352281aa629284ef1bbf1cbe7a29a33590765103bad4bcb937c57500bd8d.exe	33
PID 3064 wrote to memory of 2252	3064	0afb352281aa629284ef1bbf1cbe7a29a33590765103bad4bcb937c57500bd8d.exe	33
PID 3064 wrote to memory of 2252	3064	0afb352281aa629284ef1bbf1cbe7a29a33590765103bad4bcb937c57500bd8d.exe	33
PID 2252 wrote to memory of 1892	2252	Client.exe	34
PID 2252 wrote to memory of 1892	2252	Client.exe	34
PID 2252 wrote to memory of 1892	2252	Client.exe	34
PID 2252 wrote to memory of 1892	2252	Client.exe	34

C:\Users\Admin\AppData\Local\Temp\0afb352281aa629284ef1bbf1cbe7a29a33590765103bad4bcb937c57500bd8d.exe
"C:\Users\Admin\AppData\Local\Temp\0afb352281aa629284ef1bbf1cbe7a29a33590765103bad4bcb937c57500bd8d.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3064
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks" /create /tn "client" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\0afb352281aa629284ef1bbf1cbe7a29a33590765103bad4bcb937c57500bd8d.exe" /rl HIGHEST /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2912
- C:\Users\Admin\AppData\Roaming\cles\Client.exe
  "C:\Users\Admin\AppData\Roaming\cles\Client.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2252
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks" /create /tn "client" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\cles\Client.exe" /rl HIGHEST /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1892

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\cles\Client.exe

Filesize
349KB

MD5
faab74e4283cc335a05f9ba97ab05948

SHA1
0d5890aaa2e2ab227cb8ada19740946609db1d3d

SHA256
0afb352281aa629284ef1bbf1cbe7a29a33590765103bad4bcb937c57500bd8d

SHA512
8092b1b832d9746374df77a3e22d3fb48557c0dd09c9fdd6e2f852d6cdad8236f6f229851a9d915ebe44c8e154935175cc1551ccd4c7f6fb8a9ef9d337d8ac30

Download Submit
memory/2252-11-0x0000000000870000-0x00000000008CE000-memory.dmp

Filesize
376KB

Download
memory/2252-12-0x0000000073F60000-0x000000007464E000-memory.dmp

Filesize
6.9MB

Download
memory/2252-10-0x0000000073F60000-0x000000007464E000-memory.dmp

Filesize
6.9MB

Download
memory/2252-15-0x0000000073F60000-0x000000007464E000-memory.dmp

Filesize
6.9MB

Download
memory/3064-0-0x0000000073F6E000-0x0000000073F6F000-memory.dmp

Filesize
4KB

Download
memory/3064-1-0x0000000000DA0000-0x0000000000DFE000-memory.dmp

Filesize
376KB

Download
memory/3064-2-0x0000000073F60000-0x000000007464E000-memory.dmp

Filesize
6.9MB

Download
memory/3064-13-0x0000000073F60000-0x000000007464E000-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