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 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/948-1-0x00000000000D0000-0x00000000003F4000-memory.dmp	family_quasar
C:\Windows\System32\SubDir\Client.exe	family_quasar

Executes dropped EXE 1 IoCs

Processes:

Client.exe

pid process

5008 Client.exe

pid	process
5008	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\Client.exe	1cc21298b9e394b4951fc011a582c410_NeikiAnalytics.exe
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

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

2000 schtasks.exe
4800 schtasks.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

1cc21298b9e394b4951fc011a582c410_NeikiAnalytics.exeClient.exe

description pid process

Token: SeDebugPrivilege 948 1cc21298b9e394b4951fc011a582c410_NeikiAnalytics.exe
Token: SeDebugPrivilege 5008 Client.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Client.exe

pid process

5008 Client.exe

pid	process
2000	schtasks.exe
4800	schtasks.exe

description	pid	process
Token: SeDebugPrivilege	948	1cc21298b9e394b4951fc011a582c410_NeikiAnalytics.exe
Token: SeDebugPrivilege	5008	Client.exe

pid	process
5008	Client.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

1cc21298b9e394b4951fc011a582c410_NeikiAnalytics.exeClient.exe

description	pid	process	target process
PID 948 wrote to memory of 2000	948	1cc21298b9e394b4951fc011a582c410_NeikiAnalytics.exe	schtasks.exe
PID 948 wrote to memory of 2000	948	1cc21298b9e394b4951fc011a582c410_NeikiAnalytics.exe	schtasks.exe
PID 948 wrote to memory of 5008	948	1cc21298b9e394b4951fc011a582c410_NeikiAnalytics.exe	Client.exe
PID 948 wrote to memory of 5008	948	1cc21298b9e394b4951fc011a582c410_NeikiAnalytics.exe	Client.exe
PID 5008 wrote to memory of 4800	5008	Client.exe	schtasks.exe
PID 5008 wrote to memory of 4800	5008	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:948

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:2000

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:5008

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:4800

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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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/948-0-0x00007FFD7D5F3000-0x00007FFD7D5F5000-memory.dmp

Filesize
8KB

Download
memory/948-1-0x00000000000D0000-0x00000000003F4000-memory.dmp

Filesize
3.1MB

Download
memory/948-2-0x00007FFD7D5F0000-0x00007FFD7E0B1000-memory.dmp

Filesize
10.8MB

Download
memory/948-10-0x00007FFD7D5F0000-0x00007FFD7E0B1000-memory.dmp

Filesize
10.8MB

Download
memory/5008-9-0x00007FFD7D5F0000-0x00007FFD7E0B1000-memory.dmp

Filesize
10.8MB

Download
memory/5008-11-0x00007FFD7D5F0000-0x00007FFD7E0B1000-memory.dmp

Filesize
10.8MB

Download
memory/5008-12-0x000000001B940000-0x000000001B990000-memory.dmp

Filesize
320KB

Download
memory/5008-13-0x000000001BA50000-0x000000001BB02000-memory.dmp

Filesize
712KB

Download
memory/5008-14-0x00007FFD7D5F0000-0x00007FFD7E0B1000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads