quasar | 98428fa8e72274d66f364f230fd1800f6c79f9a82b302e796234cf93e889eb87

General

Target

4c5517f7d4f0e77f98f8c3f033ac0269_JaffaCakes118.exe
Size

255KB
MD5

4c5517f7d4f0e77f98f8c3f033ac0269
SHA1

fc4c6890bb5cb90d4492995b0f18d9cea022a9a2
SHA256

98428fa8e72274d66f364f230fd1800f6c79f9a82b302e796234cf93e889eb87
SHA512

aea401db7f8f533f079702aaa5c2013ba94d18cd839267ebf00c079d36689711a6f10ada957d6d876b8906c778811f41b71ca8ce52f06a156ba0f2ad966b5403
SSDEEP

6144:GunF3/mw+NhZ7cJfqG0K+UvhvEnbEsxM0i:GEJiG0KXsxM0i

Score

10^/10

quasar infect spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

INFECT

C2

159.203.16.166:8383

aylmao1337.tk:8383

Mutex

QSR_MUTEX_dgkusG8Joof1DH7joH

Attributes

encryption_key
fyU8ilcpYcOXqkxlxJir
install_name
SysInterrupts32.exe
log_directory
Logs
reconnect_delay
3000
startup_key
System interrupts
subdirectory
Microsoft

Signatures

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

Quasar payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1764-1-0x00000000000A0000-0x00000000000E6000-memory.dmp	family_quasar
\Users\Admin\AppData\Roaming\Microsoft\SysInterrupts32.exe	family_quasar
behavioral1/memory/2716-10-0x0000000000A20000-0x0000000000A66000-memory.dmp	family_quasar

Executes dropped EXE 2 IoCs

Processes:

SysInterrupts32.exeSysInterrupts32.exe

pid process

2716 SysInterrupts32.exe
312 SysInterrupts32.exe
Loads dropped DLL 6 IoCs

Processes:

4c5517f7d4f0e77f98f8c3f033ac0269_JaffaCakes118.exeWerFault.exe

pid process

1764 4c5517f7d4f0e77f98f8c3f033ac0269_JaffaCakes118.exe
2328 WerFault.exe
2328 WerFault.exe
2328 WerFault.exe
2328 WerFault.exe
2328 WerFault.exe
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

2 ip-api.com
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2328 2716 WerFault.exe SysInterrupts32.exe
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

Processes:

schtasks.exeschtasks.exe

pid process

2560 schtasks.exe
1652 schtasks.exe
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

2532 PING.EXE
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

4c5517f7d4f0e77f98f8c3f033ac0269_JaffaCakes118.exeSysInterrupts32.exe

description pid process

Token: SeDebugPrivilege 1764 4c5517f7d4f0e77f98f8c3f033ac0269_JaffaCakes118.exe
Token: SeDebugPrivilege 2716 SysInterrupts32.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

SysInterrupts32.exe

pid process

2716 SysInterrupts32.exe

pid	process
2716	SysInterrupts32.exe
312	SysInterrupts32.exe

pid	process
1764	4c5517f7d4f0e77f98f8c3f033ac0269_JaffaCakes118.exe
2328	WerFault.exe
2328	WerFault.exe
2328	WerFault.exe
2328	WerFault.exe
2328	WerFault.exe

flow	ioc
2	ip-api.com

pid	pid_target	process	target process
2328	2716	WerFault.exe	SysInterrupts32.exe

pid	process
2560	schtasks.exe
1652	schtasks.exe

pid	process
2532	PING.EXE

description	pid	process
Token: SeDebugPrivilege	1764	4c5517f7d4f0e77f98f8c3f033ac0269_JaffaCakes118.exe
Token: SeDebugPrivilege	2716	SysInterrupts32.exe

pid	process
2716	SysInterrupts32.exe

Suspicious use of WriteProcessMemory 32 IoCs

Processes:

4c5517f7d4f0e77f98f8c3f033ac0269_JaffaCakes118.exeSysInterrupts32.execmd.exe

description	pid	process	target process
PID 1764 wrote to memory of 2560	1764	4c5517f7d4f0e77f98f8c3f033ac0269_JaffaCakes118.exe	schtasks.exe
PID 1764 wrote to memory of 2560	1764	4c5517f7d4f0e77f98f8c3f033ac0269_JaffaCakes118.exe	schtasks.exe
PID 1764 wrote to memory of 2560	1764	4c5517f7d4f0e77f98f8c3f033ac0269_JaffaCakes118.exe	schtasks.exe
PID 1764 wrote to memory of 2560	1764	4c5517f7d4f0e77f98f8c3f033ac0269_JaffaCakes118.exe	schtasks.exe
PID 1764 wrote to memory of 2716	1764	4c5517f7d4f0e77f98f8c3f033ac0269_JaffaCakes118.exe	SysInterrupts32.exe
PID 1764 wrote to memory of 2716	1764	4c5517f7d4f0e77f98f8c3f033ac0269_JaffaCakes118.exe	SysInterrupts32.exe
PID 1764 wrote to memory of 2716	1764	4c5517f7d4f0e77f98f8c3f033ac0269_JaffaCakes118.exe	SysInterrupts32.exe
PID 1764 wrote to memory of 2716	1764	4c5517f7d4f0e77f98f8c3f033ac0269_JaffaCakes118.exe	SysInterrupts32.exe
PID 2716 wrote to memory of 1652	2716	SysInterrupts32.exe	schtasks.exe
PID 2716 wrote to memory of 1652	2716	SysInterrupts32.exe	schtasks.exe
PID 2716 wrote to memory of 1652	2716	SysInterrupts32.exe	schtasks.exe
PID 2716 wrote to memory of 1652	2716	SysInterrupts32.exe	schtasks.exe
PID 2716 wrote to memory of 2096	2716	SysInterrupts32.exe	cmd.exe
PID 2716 wrote to memory of 2096	2716	SysInterrupts32.exe	cmd.exe
PID 2716 wrote to memory of 2096	2716	SysInterrupts32.exe	cmd.exe
PID 2716 wrote to memory of 2096	2716	SysInterrupts32.exe	cmd.exe
PID 2716 wrote to memory of 2328	2716	SysInterrupts32.exe	WerFault.exe
PID 2716 wrote to memory of 2328	2716	SysInterrupts32.exe	WerFault.exe
PID 2716 wrote to memory of 2328	2716	SysInterrupts32.exe	WerFault.exe
PID 2716 wrote to memory of 2328	2716	SysInterrupts32.exe	WerFault.exe
PID 2096 wrote to memory of 348	2096	cmd.exe	chcp.com
PID 2096 wrote to memory of 348	2096	cmd.exe	chcp.com
PID 2096 wrote to memory of 348	2096	cmd.exe	chcp.com
PID 2096 wrote to memory of 348	2096	cmd.exe	chcp.com
PID 2096 wrote to memory of 2532	2096	cmd.exe	PING.EXE
PID 2096 wrote to memory of 2532	2096	cmd.exe	PING.EXE
PID 2096 wrote to memory of 2532	2096	cmd.exe	PING.EXE
PID 2096 wrote to memory of 2532	2096	cmd.exe	PING.EXE
PID 2096 wrote to memory of 312	2096	cmd.exe	SysInterrupts32.exe
PID 2096 wrote to memory of 312	2096	cmd.exe	SysInterrupts32.exe
PID 2096 wrote to memory of 312	2096	cmd.exe	SysInterrupts32.exe
PID 2096 wrote to memory of 312	2096	cmd.exe	SysInterrupts32.exe

C:\Users\Admin\AppData\Local\Temp\4c5517f7d4f0e77f98f8c3f033ac0269_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4c5517f7d4f0e77f98f8c3f033ac0269_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1764

C:\Windows\SysWOW64\schtasks.exe
"schtasks" /create /tn "System interrupts" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\4c5517f7d4f0e77f98f8c3f033ac0269_JaffaCakes118.exe" /rl HIGHEST /f
2⤵
- Creates scheduled task(s)
PID:2560

C:\Users\Admin\AppData\Roaming\Microsoft\SysInterrupts32.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\SysInterrupts32.exe"
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2716

C:\Windows\SysWOW64\schtasks.exe
"schtasks" /create /tn "System interrupts" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Microsoft\SysInterrupts32.exe" /rl HIGHEST /f
3⤵
- Creates scheduled task(s)
PID:1652

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\RUqnZMmJBEic.bat" "
3⤵
- Suspicious use of WriteProcessMemory
PID:2096

C:\Windows\SysWOW64\chcp.com
chcp 65001
4⤵
PID:348

C:\Windows\SysWOW64\PING.EXE
ping -n 10 localhost
4⤵
- Runs ping.exe
PID:2532

C:\Users\Admin\AppData\Roaming\Microsoft\SysInterrupts32.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\SysInterrupts32.exe"
4⤵
- Executes dropped EXE
PID:312

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2716 -s 1384
3⤵
- Loads dropped DLL
- Program crash
PID:2328

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

Remote System Discovery

1

T1018

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
219B

MD5
91ba1ac8e934e23d5e3ad33247ed3d34

SHA1
36f5e5bb237fa52d9b975761dc7001b5fd55625c

SHA256
3a93afc20167997cbf980263b1200c4ab8376676ea66bf75b02b52d5881f0233

SHA512
1834bf27b7066de75ff6c60eb29f40b4293cba9fe8b4e53cdf7ac30c7cc5c6a753cf2c80b12b598995cb671adf4f6978f06b776f68fb4aea7febeecf398211f1

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\SysInterrupts32.exe

Filesize
255KB

MD5
4c5517f7d4f0e77f98f8c3f033ac0269

SHA1
fc4c6890bb5cb90d4492995b0f18d9cea022a9a2

SHA256
98428fa8e72274d66f364f230fd1800f6c79f9a82b302e796234cf93e889eb87

SHA512
aea401db7f8f533f079702aaa5c2013ba94d18cd839267ebf00c079d36689711a6f10ada957d6d876b8906c778811f41b71ca8ce52f06a156ba0f2ad966b5403

Download Submit
memory/1764-0-0x000000007481E000-0x000000007481F000-memory.dmp

Filesize
4KB

Download
memory/1764-1-0x00000000000A0000-0x00000000000E6000-memory.dmp

Filesize
280KB

Download
memory/1764-2-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download
memory/1764-13-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download
memory/2716-11-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download
memory/2716-12-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download
memory/2716-10-0x0000000000A20000-0x0000000000A66000-memory.dmp

Filesize
280KB

Download
memory/2716-15-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download
memory/2716-16-0x0000000074810000-0x0000000074EFE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads