quasar | 31417fc784e94e4f10b08c075f1e091666a6e8192b12550e0952e082941517fe

General

Target

hacker ratted.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 2 IoCs

resource	yara_rule
behavioral1/memory/1260-1-0x0000000000F70000-0x00000000012D6000-memory.dmp	family_quasar
behavioral1/files/0x002900000004619a-3.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
2520	Object32.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\SubDir\Object32.exe	Object32.exe
File opened for modification	C:\Windows\system32\SubDir	Object32.exe
File created	C:\Windows\system32\SubDir\Object32.exe	hacker ratted.exe
File opened for modification	C:\Windows\system32\SubDir\Object32.exe	hacker ratted.exe
File opened for modification	C:\Windows\system32\SubDir	hacker ratted.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
4208	schtasks.exe
2812	schtasks.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1260	hacker ratted.exe
Token: SeDebugPrivilege	2520	Object32.exe
Token: SeDebugPrivilege	1116	hacker ratted.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2520	Object32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1260 wrote to memory of 4208	1260	hacker ratted.exe	82
PID 1260 wrote to memory of 4208	1260	hacker ratted.exe	82
PID 1260 wrote to memory of 2520	1260	hacker ratted.exe	84
PID 1260 wrote to memory of 2520	1260	hacker ratted.exe	84
PID 2520 wrote to memory of 2812	2520	Object32.exe	87
PID 2520 wrote to memory of 2812	2520	Object32.exe	87

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\hacker ratted.exe
"C:\Users\Admin\AppData\Local\Temp\hacker ratted.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1260
- 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:4208
- 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:2520
- - 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:2812

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:240

C:\Users\Admin\AppData\Local\Temp\hacker ratted.exe
"C:\Users\Admin\AppData\Local\Temp\hacker ratted.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1116

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\hacker ratted.exe.log

Filesize
1KB

MD5
b08c36ce99a5ed11891ef6fc6d8647e9

SHA1
db95af417857221948eb1882e60f98ab2914bf1d

SHA256
cc9248a177495f45ec70b86c34fc5746c56730af36ace98ac7eb365dbafda674

SHA512
07e62581eace395b0a9699d727761648103180c21155d84ea09140f9e1c9690705c419118545aa67a564334bbde32710225fe3aa92b0b4b4210cb91f0058b1ea

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

Filesize
3.4MB

MD5
c4ac25bdf6124e6f1c051ac1e90f657d

SHA1
b2ee63b10458810beeabf6904ec6f297de9a3232

SHA256
31417fc784e94e4f10b08c075f1e091666a6e8192b12550e0952e082941517fe

SHA512
fad40cd44adda8bfc9dec1fc0378bc70c491e7025e62928b80ac7a22bba774efeba54fc4d35dfca899c12361f5d9962fa80482a01b9f5c9c20b7c1653fe7d94a

Download Submit
memory/1260-0-0x00007FFCA5423000-0x00007FFCA5425000-memory.dmp

Filesize
8KB

Download
memory/1260-1-0x0000000000F70000-0x00000000012D6000-memory.dmp

Filesize
3.4MB

Download
memory/1260-2-0x00007FFCA5420000-0x00007FFCA5EE2000-memory.dmp

Filesize
10.8MB

Download
memory/1260-5-0x00007FFCA5420000-0x00007FFCA5EE2000-memory.dmp

Filesize
10.8MB

Download
memory/2520-6-0x00007FFCA5420000-0x00007FFCA5EE2000-memory.dmp

Filesize
10.8MB

Download
memory/2520-7-0x00007FFCA5420000-0x00007FFCA5EE2000-memory.dmp

Filesize
10.8MB

Download
memory/2520-8-0x000000001CD90000-0x000000001CDE0000-memory.dmp

Filesize
320KB

Download
memory/2520-9-0x000000001CEA0000-0x000000001CF52000-memory.dmp

Filesize
712KB

Download
memory/2520-10-0x000000001D690000-0x000000001DBB8000-memory.dmp

Filesize
5.2MB

Download
memory/2520-11-0x00007FFCA5420000-0x00007FFCA5EE2000-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