quasar | 687c5903af67e7ae2df617f249ef22502998e4524ccb34a27eaac389b8e61728

General

Target

687c5903af67e7ae2df617f249ef22502998e4524ccb34a27eaac389b8e61728.exe
Size

4.8MB
MD5

9a7cea63db91937ec2fa0c4a40dcde82
SHA1

dbc121740eb6aa3221beadd3ae69df1ce095c441
SHA256

687c5903af67e7ae2df617f249ef22502998e4524ccb34a27eaac389b8e61728
SHA512

36e6a806125b1d80e97482f0b03a7481a136f01d2808169f171d89c54d2faf6f5b6913f4751dc737d5dc672f63622e379fd87f306cec2e076d8a5e73d33059dd
SSDEEP

98304:nMuUyniWYpCYL5ztUvPPpmDw7FhcNXIvNS12RA4:njifpTptUvpWw7FmNXENSV4

Score

10^/10

quasar staking discovery spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Staking

C2

51.15.17.193:4782

Mutex

ff4f56ac-24e1-40ed-bb5c-e0b45b489ee4

Attributes

encryption_key
97599F6E5D14A784CC4DD36B18A277119042FDA8
install_name
Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Quasar Client Startup
subdirectory
SubDir

Signatures

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

Quasar payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/432-1-0x0000013D9A1B0000-0x0000013D9A4D4000-memory.dmp	family_quasar

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

687c5903af67e7ae2df617f249ef22502998e4524ccb34a27eaac389b8e61728.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	687c5903af67e7ae2df617f249ef22502998e4524ccb34a27eaac389b8e61728.exe

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

System Information Discovery
T1082
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs
Adversaries may check for Internet connectivity on compromised systems.
discovery

Internet Connection Discovery
T1016.001

Processes:

PING.EXE

pid process

5108 PING.EXE
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

5108 PING.EXE
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

687c5903af67e7ae2df617f249ef22502998e4524ccb34a27eaac389b8e61728.exe

description pid process

Token: SeDebugPrivilege 432 687c5903af67e7ae2df617f249ef22502998e4524ccb34a27eaac389b8e61728.exe

pid	process
5108	PING.EXE

pid	process
5108	PING.EXE

description	pid	process
Token: SeDebugPrivilege	432	687c5903af67e7ae2df617f249ef22502998e4524ccb34a27eaac389b8e61728.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

687c5903af67e7ae2df617f249ef22502998e4524ccb34a27eaac389b8e61728.execmd.exe

description	pid	process	target process
PID 432 wrote to memory of 3928	432	687c5903af67e7ae2df617f249ef22502998e4524ccb34a27eaac389b8e61728.exe	cmd.exe
PID 432 wrote to memory of 3928	432	687c5903af67e7ae2df617f249ef22502998e4524ccb34a27eaac389b8e61728.exe	cmd.exe
PID 3928 wrote to memory of 4280	3928	cmd.exe	chcp.com
PID 3928 wrote to memory of 4280	3928	cmd.exe	chcp.com
PID 3928 wrote to memory of 5108	3928	cmd.exe	PING.EXE
PID 3928 wrote to memory of 5108	3928	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\687c5903af67e7ae2df617f249ef22502998e4524ccb34a27eaac389b8e61728.exe
"C:\Users\Admin\AppData\Local\Temp\687c5903af67e7ae2df617f249ef22502998e4524ccb34a27eaac389b8e61728.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:432
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\hAy0ihYAeM4N.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3928
- - C:\Windows\system32\chcp.com
    chcp 65001
    3⤵
    PID:4280
- - C:\Windows\system32\PING.EXE
    ping -n 10 localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:5108

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\hAy0ihYAeM4N.bat

Filesize
265B

MD5
95fe26acf84bc76f8220f3f41190fa17

SHA1
b4980cd9a5195cbc554c10cf2ea11dce1caa01aa

SHA256
8ec23239b09695e599bbb0fdb00cab9a85094950e01b3cbf6063e3742cbd4cd9

SHA512
189b3983db223e7d099ef5a2eaa398e724095304363851dad12d69408c4526d12ba21032c5886537244c2b0131279f457423c12513f97c62a4449da418da4862

Download Submit
memory/432-6-0x0000013E00000000-0x0000013E000B2000-memory.dmp

Filesize
712KB

Download
memory/432-2-0x00007FFC183C0000-0x00007FFC18E81000-memory.dmp

Filesize
10.8MB

Download
memory/432-3-0x00007FFC183C0000-0x00007FFC18E81000-memory.dmp

Filesize
10.8MB

Download
memory/432-4-0x00007FFC183C0000-0x00007FFC18E81000-memory.dmp

Filesize
10.8MB

Download
memory/432-5-0x0000013DFFC50000-0x0000013DFFCA0000-memory.dmp

Filesize
320KB

Download
memory/432-0-0x00007FFC183C3000-0x00007FFC183C5000-memory.dmp

Filesize
8KB

Download
memory/432-9-0x0000013DFFC20000-0x0000013DFFC32000-memory.dmp

Filesize
72KB

Download
memory/432-10-0x0000013DFFE20000-0x0000013DFFE5C000-memory.dmp

Filesize
240KB

Download
memory/432-11-0x00007FFC183C3000-0x00007FFC183C5000-memory.dmp

Filesize
8KB

Download
memory/432-12-0x00007FFC183C0000-0x00007FFC18E81000-memory.dmp

Filesize
10.8MB

Download
memory/432-1-0x0000013D9A1B0000-0x0000013D9A4D4000-memory.dmp

Filesize
3.1MB

Download
memory/432-18-0x00007FFC183C0000-0x00007FFC18E81000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads