quasar | b626158fdbfaa911fefd862b9e6caeb47cdaf53954a9d6ba66cd895542c369b0

General

Target

799d6cb505b54bcfb7dcba07cb406fe8_JaffaCakes118.exe
Size

348KB
MD5

799d6cb505b54bcfb7dcba07cb406fe8
SHA1

8563608d5cc6e52dd2834a295b08c4108fe709be
SHA256

b626158fdbfaa911fefd862b9e6caeb47cdaf53954a9d6ba66cd895542c369b0
SHA512

b5497a65e5ad4ea75305cb718573bb2f2d0d1e1b186f454a4cdf8cb6a0b624fcd797fd4d0b2bf1d36dc6f17e983fa1bab0de563e567f90bf3f067cbb75e1c372
SSDEEP

6144:ZzNHXf500MYHAM9PPEnqH7bfYbFD7eBcADO+:Fd50HMtxQFD7eOAC+

Score

10^/10

quasar office04 spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Office04

C2

68.94.252.162:4782

Mutex

QSR_MUTEX_j3gNc0L0ssBc0mCO5F

Attributes

encryption_key
XfsQ76jccqZq9jzXbmz8
install_name
Rift S Patch Tool.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Win64x
subdirectory
SubDir

Signatures

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

Quasar payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4080-1-0x00000000004B0000-0x000000000050E000-memory.dmp	family_quasar
C:\Program Files (x86)\SubDir\Rift S Patch Tool.exe	family_quasar

Executes dropped EXE 1 IoCs

Processes:

Rift S Patch Tool.exe

pid process

2096 Rift S Patch Tool.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

6 ip-api.com

pid	process
2096	Rift S Patch Tool.exe

flow	ioc
6	ip-api.com

Drops file in Program Files directory 2 IoCs

Processes:

799d6cb505b54bcfb7dcba07cb406fe8_JaffaCakes118.exe

description	ioc	process
File created	C:\Program Files (x86)\SubDir\Rift S Patch Tool.exe	799d6cb505b54bcfb7dcba07cb406fe8_JaffaCakes118.exe
File opened for modification	C:\Program Files (x86)\SubDir\Rift S Patch Tool.exe	799d6cb505b54bcfb7dcba07cb406fe8_JaffaCakes118.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

5004 schtasks.exe
4180 schtasks.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

799d6cb505b54bcfb7dcba07cb406fe8_JaffaCakes118.exeRift S Patch Tool.exe

description pid process

Token: SeDebugPrivilege 4080 799d6cb505b54bcfb7dcba07cb406fe8_JaffaCakes118.exe
Token: SeDebugPrivilege 2096 Rift S Patch Tool.exe

pid	process
5004	schtasks.exe
4180	schtasks.exe

description	pid	process
Token: SeDebugPrivilege	4080	799d6cb505b54bcfb7dcba07cb406fe8_JaffaCakes118.exe
Token: SeDebugPrivilege	2096	Rift S Patch Tool.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

799d6cb505b54bcfb7dcba07cb406fe8_JaffaCakes118.exeRift S Patch Tool.exe

description	pid	process	target process
PID 4080 wrote to memory of 5004	4080	799d6cb505b54bcfb7dcba07cb406fe8_JaffaCakes118.exe	schtasks.exe
PID 4080 wrote to memory of 5004	4080	799d6cb505b54bcfb7dcba07cb406fe8_JaffaCakes118.exe	schtasks.exe
PID 4080 wrote to memory of 5004	4080	799d6cb505b54bcfb7dcba07cb406fe8_JaffaCakes118.exe	schtasks.exe
PID 4080 wrote to memory of 2096	4080	799d6cb505b54bcfb7dcba07cb406fe8_JaffaCakes118.exe	Rift S Patch Tool.exe
PID 4080 wrote to memory of 2096	4080	799d6cb505b54bcfb7dcba07cb406fe8_JaffaCakes118.exe	Rift S Patch Tool.exe
PID 4080 wrote to memory of 2096	4080	799d6cb505b54bcfb7dcba07cb406fe8_JaffaCakes118.exe	Rift S Patch Tool.exe
PID 2096 wrote to memory of 4180	2096	Rift S Patch Tool.exe	schtasks.exe
PID 2096 wrote to memory of 4180	2096	Rift S Patch Tool.exe	schtasks.exe
PID 2096 wrote to memory of 4180	2096	Rift S Patch Tool.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\799d6cb505b54bcfb7dcba07cb406fe8_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\799d6cb505b54bcfb7dcba07cb406fe8_JaffaCakes118.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4080

C:\Windows\SysWOW64\schtasks.exe
"schtasks" /create /tn "Win64x" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\799d6cb505b54bcfb7dcba07cb406fe8_JaffaCakes118.exe" /rl HIGHEST /f
2⤵
- Creates scheduled task(s)
PID:5004

C:\Program Files (x86)\SubDir\Rift S Patch Tool.exe
"C:\Program Files (x86)\SubDir\Rift S Patch Tool.exe"
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2096

C:\Windows\SysWOW64\schtasks.exe
"schtasks" /create /tn "Win64x" /sc ONLOGON /tr "C:\Program Files (x86)\SubDir\Rift S Patch Tool.exe" /rl HIGHEST /f
3⤵
- Creates scheduled task(s)
PID:4180

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Program Files (x86)\SubDir\Rift S Patch Tool.exe

Filesize
348KB

MD5
799d6cb505b54bcfb7dcba07cb406fe8

SHA1
8563608d5cc6e52dd2834a295b08c4108fe709be

SHA256
b626158fdbfaa911fefd862b9e6caeb47cdaf53954a9d6ba66cd895542c369b0

SHA512
b5497a65e5ad4ea75305cb718573bb2f2d0d1e1b186f454a4cdf8cb6a0b624fcd797fd4d0b2bf1d36dc6f17e983fa1bab0de563e567f90bf3f067cbb75e1c372

Download Submit
memory/2096-17-0x00000000061E0000-0x00000000061EA000-memory.dmp

Filesize
40KB

Download
memory/2096-16-0x0000000075430000-0x0000000075BE0000-memory.dmp

Filesize
7.7MB

Download
memory/2096-15-0x0000000075430000-0x0000000075BE0000-memory.dmp

Filesize
7.7MB

Download
memory/2096-14-0x0000000075430000-0x0000000075BE0000-memory.dmp

Filesize
7.7MB

Download
memory/4080-6-0x0000000005C00000-0x0000000005C12000-memory.dmp

Filesize
72KB

Download
memory/4080-0-0x000000007543E000-0x000000007543F000-memory.dmp

Filesize
4KB

Download
memory/4080-7-0x0000000006140000-0x000000000617C000-memory.dmp

Filesize
240KB

Download
memory/4080-5-0x0000000004EF0000-0x0000000004F56000-memory.dmp

Filesize
408KB

Download
memory/4080-13-0x0000000075430000-0x0000000075BE0000-memory.dmp

Filesize
7.7MB

Download
memory/4080-4-0x0000000075430000-0x0000000075BE0000-memory.dmp

Filesize
7.7MB

Download
memory/4080-3-0x0000000004F80000-0x0000000005012000-memory.dmp

Filesize
584KB

Download
memory/4080-2-0x0000000005430000-0x00000000059D4000-memory.dmp

Filesize
5.6MB

Download
memory/4080-1-0x00000000004B0000-0x000000000050E000-memory.dmp

Filesize
376KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads