quasar | 31417fc784e94e4f10b08c075f1e091666a6e8192b12550e0952e082941517fe

General

Target

hackerratted.exe
Size

3.4MB
MD5

c4ac25bdf6124e6f1c051ac1e90f657d
SHA1

b2ee63b10458810beeabf6904ec6f297de9a3232
SHA256

31417fc784e94e4f10b08c075f1e091666a6e8192b12550e0952e082941517fe
SHA512

fad40cd44adda8bfc9dec1fc0378bc70c491e7025e62928b80ac7a22bba774efeba54fc4d35dfca899c12361f5d9962fa80482a01b9f5c9c20b7c1653fe7d94a
SSDEEP

49152:SvBt62XlaSFNWPjljiFa2RoUYIqikJ1Jn1oGdDTHHB72eh2NT:Svr62XlaSFNWPjljiFXRoUYIqikz

Score

10^/10

quasar peterhook spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

PeterHook

C2

192.168.0.5:4782

Mutex

cd324e5c-c34f-4920-bdd2-2d24fc933db1

Attributes

encryption_key
0908B84905A59131FC3C4A641367107030E964BF
install_name
Object32.exe
log_directory
info
reconnect_delay
3000
startup_key
RegistryWindows
subdirectory
SubDir

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/2084-1-0x00000000009F0000-0x0000000000D56000-memory.dmp	family_quasar
behavioral1/files/0x0008000000015d59-6.dat	family_quasar
behavioral1/memory/2116-9-0x0000000000030000-0x0000000000396000-memory.dmp	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
2116	Object32.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File created	C:\Windows\system32\SubDir\Object32.exe	hackerratted.exe
File opened for modification	C:\Windows\system32\SubDir\Object32.exe	hackerratted.exe
File opened for modification	C:\Windows\system32\SubDir	hackerratted.exe
File opened for modification	C:\Windows\system32\SubDir\Object32.exe	Object32.exe
File opened for modification	C:\Windows\system32\SubDir	Object32.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
2348	schtasks.exe
2176	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2084	hackerratted.exe
Token: SeDebugPrivilege	2116	Object32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2116	Object32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2084 wrote to memory of 2348	2084	hackerratted.exe	30
PID 2084 wrote to memory of 2348	2084	hackerratted.exe	30
PID 2084 wrote to memory of 2348	2084	hackerratted.exe	30
PID 2084 wrote to memory of 2116	2084	hackerratted.exe	32
PID 2084 wrote to memory of 2116	2084	hackerratted.exe	32
PID 2084 wrote to memory of 2116	2084	hackerratted.exe	32
PID 2116 wrote to memory of 2176	2116	Object32.exe	33
PID 2116 wrote to memory of 2176	2116	Object32.exe	33
PID 2116 wrote to memory of 2176	2116	Object32.exe	33

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\hackerratted.exe
"C:\Users\Admin\AppData\Local\Temp\hackerratted.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2084
- C:\Windows\system32\schtasks.exe
  "schtasks" /create /tn "RegistryWindows" /sc ONLOGON /tr "C:\Windows\system32\SubDir\Object32.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2348
- C:\Windows\system32\SubDir\Object32.exe
  "C:\Windows\system32\SubDir\Object32.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2116
- - C:\Windows\system32\schtasks.exe
    "schtasks" /create /tn "RegistryWindows" /sc ONLOGON /tr "C:\Windows\system32\SubDir\Object32.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2176

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

Query Registry

1

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\System32\SubDir\Object32.exe

Filesize
3.4MB

MD5
c4ac25bdf6124e6f1c051ac1e90f657d

SHA1
b2ee63b10458810beeabf6904ec6f297de9a3232

SHA256
31417fc784e94e4f10b08c075f1e091666a6e8192b12550e0952e082941517fe

SHA512
fad40cd44adda8bfc9dec1fc0378bc70c491e7025e62928b80ac7a22bba774efeba54fc4d35dfca899c12361f5d9962fa80482a01b9f5c9c20b7c1653fe7d94a

Download Submit
memory/2084-0-0x000007FEF55A3000-0x000007FEF55A4000-memory.dmp

Filesize
4KB

Download
memory/2084-1-0x00000000009F0000-0x0000000000D56000-memory.dmp

Filesize
3.4MB

Download
memory/2084-2-0x000007FEF55A0000-0x000007FEF5F8C000-memory.dmp

Filesize
9.9MB

Download
memory/2084-8-0x000007FEF55A0000-0x000007FEF5F8C000-memory.dmp

Filesize
9.9MB

Download
memory/2116-10-0x000007FEF55A0000-0x000007FEF5F8C000-memory.dmp

Filesize
9.9MB

Download
memory/2116-9-0x0000000000030000-0x0000000000396000-memory.dmp

Filesize
3.4MB

Download
memory/2116-11-0x000007FEF55A0000-0x000007FEF5F8C000-memory.dmp

Filesize
9.9MB

Download
memory/2116-12-0x000007FEF55A0000-0x000007FEF5F8C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads