quasar | 61ab43579080b8f581254ffc1bc1d38d8a2da8f2c1d9c7f483e2edd00117145a

General

Target

SinfulSpoofer.exe
Size

3.1MB
MD5

077b84625de8f630b622ed151725ebd8
SHA1

d39c4979e424f42b7143d2b41d6e00409ac10416
SHA256

61ab43579080b8f581254ffc1bc1d38d8a2da8f2c1d9c7f483e2edd00117145a
SHA512

598c46f86e72c768511c5d58d08a75ae0e57b3a989f6f3f04bb3ecdcee42353a94e8699174aeb4f228bf37abc890f462ee0edcf7017a88bebb321629fbc123b6
SSDEEP

49152:Cvht62XlaSFNWPjljiFa2RoUYIKvooBxisoGdLTHHB72eh2NT:CvL62XlaSFNWPjljiFXRoUYIGoA

Score

10^/10

quasar fasdasd spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

fasdasd

C2

2.tcp.ngrok.io:16241

Mutex

d6ac566a-6fde-440a-b17c-aa5d54d19e93

Attributes

encryption_key
02C7E31FB83C81538B3B7AEA158F1FCCDC2B0FEA
install_name
asdsdasd.exe
log_directory
Logs
reconnect_delay
3000
startup_key
SystEm32
subdirectory
dasdasd

Signatures

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

Quasar payload 3 IoCs

resource	yara_rule
behavioral3/memory/2488-0-0x0000000000D50000-0x0000000001074000-memory.dmp	family_quasar
behavioral3/files/0x00070000000231fb-6.dat	family_quasar
behavioral3/files/0x00070000000231fb-7.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
3892	asdsdasd.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 2 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
3596	schtasks.exe
4260	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2488	SinfulSpoofer.exe
Token: SeDebugPrivilege	3892	asdsdasd.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
3892	asdsdasd.exe
3892	asdsdasd.exe
3892	asdsdasd.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
3892	asdsdasd.exe
3892	asdsdasd.exe
3892	asdsdasd.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3892	asdsdasd.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2488 wrote to memory of 3596	2488	SinfulSpoofer.exe	81
PID 2488 wrote to memory of 3596	2488	SinfulSpoofer.exe	81
PID 2488 wrote to memory of 3892	2488	SinfulSpoofer.exe	83
PID 2488 wrote to memory of 3892	2488	SinfulSpoofer.exe	83
PID 3892 wrote to memory of 4260	3892	asdsdasd.exe	84
PID 3892 wrote to memory of 4260	3892	asdsdasd.exe	84

C:\Users\Admin\AppData\Local\Temp\SinfulSpoofer.exe
"C:\Users\Admin\AppData\Local\Temp\SinfulSpoofer.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2488
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "SystEm32" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\dasdasd\asdsdasd.exe" /rl HIGHEST /f
  2⤵
  - Creates scheduled task(s)
  PID:3596
- C:\Users\Admin\AppData\Roaming\dasdasd\asdsdasd.exe
  "C:\Users\Admin\AppData\Roaming\dasdasd\asdsdasd.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3892
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /create /tn "SystEm32" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\dasdasd\asdsdasd.exe" /rl HIGHEST /f
    3⤵
    - Creates scheduled task(s)
    PID:4260

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\dasdasd\asdsdasd.exe

Filesize
3.1MB

MD5
077b84625de8f630b622ed151725ebd8

SHA1
d39c4979e424f42b7143d2b41d6e00409ac10416

SHA256
61ab43579080b8f581254ffc1bc1d38d8a2da8f2c1d9c7f483e2edd00117145a

SHA512
598c46f86e72c768511c5d58d08a75ae0e57b3a989f6f3f04bb3ecdcee42353a94e8699174aeb4f228bf37abc890f462ee0edcf7017a88bebb321629fbc123b6

Download Submit
C:\Users\Admin\AppData\Roaming\dasdasd\asdsdasd.exe

Filesize
3.1MB

MD5
077b84625de8f630b622ed151725ebd8

SHA1
d39c4979e424f42b7143d2b41d6e00409ac10416

SHA256
61ab43579080b8f581254ffc1bc1d38d8a2da8f2c1d9c7f483e2edd00117145a

SHA512
598c46f86e72c768511c5d58d08a75ae0e57b3a989f6f3f04bb3ecdcee42353a94e8699174aeb4f228bf37abc890f462ee0edcf7017a88bebb321629fbc123b6

Download Submit
memory/2488-9-0x00007FFC56870000-0x00007FFC57331000-memory.dmp

Filesize
10.8MB

Download
memory/2488-2-0x000000001BDA0000-0x000000001BDB0000-memory.dmp

Filesize
64KB

Download
memory/2488-1-0x00007FFC56870000-0x00007FFC57331000-memory.dmp

Filesize
10.8MB

Download
memory/2488-0-0x0000000000D50000-0x0000000001074000-memory.dmp

Filesize
3.1MB

Download
memory/3892-10-0x00007FFC56870000-0x00007FFC57331000-memory.dmp

Filesize
10.8MB

Download
memory/3892-11-0x000000001B8D0000-0x000000001B8E0000-memory.dmp

Filesize
64KB

Download
memory/3892-12-0x000000001C470000-0x000000001C4C0000-memory.dmp

Filesize
320KB

Download
memory/3892-13-0x000000001C580000-0x000000001C632000-memory.dmp

Filesize
712KB

Download
memory/3892-16-0x000000001C4F0000-0x000000001C502000-memory.dmp

Filesize
72KB

Download
memory/3892-17-0x000000001D180000-0x000000001D1BC000-memory.dmp

Filesize
240KB

Download
memory/3892-18-0x00007FFC56870000-0x00007FFC57331000-memory.dmp

Filesize
10.8MB

Download
memory/3892-19-0x000000001B8D0000-0x000000001B8E0000-memory.dmp

Filesize
64KB

Download
memory/3892-21-0x00007FFC56870000-0x00007FFC57331000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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