quasar | bdd58cae7b811d677926b1d9044d42b484263e1a108465d8a42a0aae9d8ae06d

General

Target

1cc21298b9e394b4951fc011a582c410_NeikiAnalytics.exe
Size

3.1MB
MD5

1cc21298b9e394b4951fc011a582c410
SHA1

5532754638d680687e038c3b6126ad1ac7b9a953
SHA256

bdd58cae7b811d677926b1d9044d42b484263e1a108465d8a42a0aae9d8ae06d
SHA512

52c4d6f3cdf81243ae227fdeaa03e19c4e9e8d61814fc36dada8034c1fd03487939f815ebace769e4591322e74eb248399b699205e2dfed4e8af22eb5b58b88c
SSDEEP

49152:+vBt62XlaSFNWPjljiFa2RoUYITCh1JmLoGdZ6LTHHB72eh2NT:+vr62XlaSFNWPjljiFXRoUYITCSJ

Score

10^/10

quasar office04 spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.10.128:4782

Mutex

92a0dbed-92db-4316-8689-94f896bde9d4

Attributes

encryption_key
C930B2A58084255426DA306F1B9DD84DFBBC2448
install_name
Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
file manager
subdirectory
SubDir

Signatures

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

Quasar payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2220-1-0x0000000000800000-0x0000000000B24000-memory.dmp	family_quasar
C:\Windows\System32\SubDir\Client.exe	family_quasar
behavioral1/memory/2140-9-0x00000000008E0000-0x0000000000C04000-memory.dmp	family_quasar

Executes dropped EXE 1 IoCs

Processes:

Client.exe

pid process

2140 Client.exe

pid	process
2140	Client.exe

Drops file in System32 directory 5 IoCs

Processes:

1cc21298b9e394b4951fc011a582c410_NeikiAnalytics.exeClient.exe

description	ioc	process
File opened for modification	C:\Windows\system32\SubDir	1cc21298b9e394b4951fc011a582c410_NeikiAnalytics.exe
File opened for modification	C:\Windows\system32\SubDir\Client.exe	Client.exe
File opened for modification	C:\Windows\system32\SubDir	Client.exe
File created	C:\Windows\system32\SubDir\Client.exe	1cc21298b9e394b4951fc011a582c410_NeikiAnalytics.exe
File opened for modification	C:\Windows\system32\SubDir\Client.exe	1cc21298b9e394b4951fc011a582c410_NeikiAnalytics.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

1244 schtasks.exe
2536 schtasks.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

1cc21298b9e394b4951fc011a582c410_NeikiAnalytics.exeClient.exe

description pid process

Token: SeDebugPrivilege 2220 1cc21298b9e394b4951fc011a582c410_NeikiAnalytics.exe
Token: SeDebugPrivilege 2140 Client.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Client.exe

pid process

2140 Client.exe

pid	process
1244	schtasks.exe
2536	schtasks.exe

description	pid	process
Token: SeDebugPrivilege	2220	1cc21298b9e394b4951fc011a582c410_NeikiAnalytics.exe
Token: SeDebugPrivilege	2140	Client.exe

pid	process
2140	Client.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

1cc21298b9e394b4951fc011a582c410_NeikiAnalytics.exeClient.exe

description	pid	process	target process
PID 2220 wrote to memory of 1244	2220	1cc21298b9e394b4951fc011a582c410_NeikiAnalytics.exe	schtasks.exe
PID 2220 wrote to memory of 1244	2220	1cc21298b9e394b4951fc011a582c410_NeikiAnalytics.exe	schtasks.exe
PID 2220 wrote to memory of 1244	2220	1cc21298b9e394b4951fc011a582c410_NeikiAnalytics.exe	schtasks.exe
PID 2220 wrote to memory of 2140	2220	1cc21298b9e394b4951fc011a582c410_NeikiAnalytics.exe	Client.exe
PID 2220 wrote to memory of 2140	2220	1cc21298b9e394b4951fc011a582c410_NeikiAnalytics.exe	Client.exe
PID 2220 wrote to memory of 2140	2220	1cc21298b9e394b4951fc011a582c410_NeikiAnalytics.exe	Client.exe
PID 2140 wrote to memory of 2536	2140	Client.exe	schtasks.exe
PID 2140 wrote to memory of 2536	2140	Client.exe	schtasks.exe
PID 2140 wrote to memory of 2536	2140	Client.exe	schtasks.exe

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\1cc21298b9e394b4951fc011a582c410_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\1cc21298b9e394b4951fc011a582c410_NeikiAnalytics.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2220

C:\Windows\system32\schtasks.exe
"schtasks" /create /tn "file manager" /sc ONLOGON /tr "C:\Windows\system32\SubDir\Client.exe" /rl HIGHEST /f
2⤵
- Creates scheduled task(s)
PID:1244

C:\Windows\system32\SubDir\Client.exe
"C:\Windows\system32\SubDir\Client.exe"
2⤵
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2140

C:\Windows\system32\schtasks.exe
"schtasks" /create /tn "file manager" /sc ONLOGON /tr "C:\Windows\system32\SubDir\Client.exe" /rl HIGHEST /f
3⤵
- Creates scheduled task(s)
PID:2536

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

Query Registry

1

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\System32\SubDir\Client.exe
Filesize
3.1MB

MD5
1cc21298b9e394b4951fc011a582c410

SHA1
5532754638d680687e038c3b6126ad1ac7b9a953

SHA256
bdd58cae7b811d677926b1d9044d42b484263e1a108465d8a42a0aae9d8ae06d

SHA512
52c4d6f3cdf81243ae227fdeaa03e19c4e9e8d61814fc36dada8034c1fd03487939f815ebace769e4591322e74eb248399b699205e2dfed4e8af22eb5b58b88c

Download Submit
memory/2140-8-0x000007FEF5F80000-0x000007FEF696C000-memory.dmp

Filesize
9.9MB

Download
memory/2140-11-0x000007FEF5F80000-0x000007FEF696C000-memory.dmp

Filesize
9.9MB

Download
memory/2140-9-0x00000000008E0000-0x0000000000C04000-memory.dmp

Filesize
3.1MB

Download
memory/2140-12-0x000007FEF5F80000-0x000007FEF696C000-memory.dmp

Filesize
9.9MB

Download
memory/2220-0-0x000007FEF5F83000-0x000007FEF5F84000-memory.dmp

Filesize
4KB

Download
memory/2220-1-0x0000000000800000-0x0000000000B24000-memory.dmp

Filesize
3.1MB

Download
memory/2220-2-0x000007FEF5F80000-0x000007FEF696C000-memory.dmp

Filesize
9.9MB

Download
memory/2220-10-0x000007FEF5F80000-0x000007FEF696C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads