quasar | 58f7dda2165a44ddad0d441ba356a0626d1ad619d766a58008320ec5936cdb94

General

Target

Client-built.exe
Size

3.1MB
Sample

241224-t6aqgaslfl
MD5

2df7f55c626ea8077ef2cc5ffd32dc38
SHA1

93131a8d6128ea827f1f31ada4391f94bbc1dd06
SHA256

58f7dda2165a44ddad0d441ba356a0626d1ad619d766a58008320ec5936cdb94
SHA512

362bfea6ae2127df5da06904407286c0ed49846ec230ae149a46a4cdcdb101987963a406427283d409957427bdc57a77c3ac90f567b3d00ad561f025f10912cc
SSDEEP

49152:ZvZI22SsaNYfdPBldt698dBcjHVi/2BxmgoGd5UTHHB72eh2NT:Zva22SsaNYfdPBldt6+dBcjHU/O

Score

10^/10

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

85.209.133.15:111

Mutex

95ddd19c-037b-4e62-8c64-298b31d663b8

Attributes

encryption_key
43DE31297B50FED5B1E6867AE89B621C68EF71E2
install_name
Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Quasar Client Startup
subdirectory
SubDir

Targets

- Target
  
  Client-built.exe
- Size
  
  3.1MB
- MD5
  
  2df7f55c626ea8077ef2cc5ffd32dc38
- SHA1
  
  93131a8d6128ea827f1f31ada4391f94bbc1dd06
- SHA256
  
  58f7dda2165a44ddad0d441ba356a0626d1ad619d766a58008320ec5936cdb94
- SHA512
  
  362bfea6ae2127df5da06904407286c0ed49846ec230ae149a46a4cdcdb101987963a406427283d409957427bdc57a77c3ac90f567b3d00ad561f025f10912cc
- SSDEEP
  
  49152:ZvZI22SsaNYfdPBldt698dBcjHVi/2BxmgoGd5UTHHB72eh2NT:Zva22SsaNYfdPBldt6+dBcjHU/O
Score

10^/10

quasar office04 discovery spyware trojan
- Quasar RAT
  Quasar is an open source Remote Access Tool.
  trojan spyware quasar
- Quasar family
  quasar
- Quasar payload
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE
- Drops desktop.ini file(s)
- Drops file in System32 directory
behavioral1 behavioral2 behavioral3

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks

Sharing

General

Malware Config

Extracted

Targets

Quasar RAT

Quasar family

Quasar payload

Checks computer location settings

Executes dropped EXE

Drops desktop.ini file(s)

Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks

static1

behavioral1

behavioral2

behavioral3

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