quasar | 65bd56cfb876a9f4399e311f253ed83d45f7fed896eeba9f9c2dc7b6eb26d3f2

General

Target

0c9d62335c53a76df0bdec0bc243d5b0_NeikiAnalytics.exe
Size

3.1MB
MD5

0c9d62335c53a76df0bdec0bc243d5b0
SHA1

691c9d535f8942a9489e0baae271463443a5d298
SHA256

65bd56cfb876a9f4399e311f253ed83d45f7fed896eeba9f9c2dc7b6eb26d3f2
SHA512

4376bfe437defbf0e350b7220c7995a16cf0161881500f0ba7faae371afe5f4aef71858231d8f7b201381ff1c6c06adc132a72db578980019281536112c3b1c8
SSDEEP

49152:SvWI22SsaNYfdPBldt698dBcjHduRJ6KbR3LoGdfTHHB72eh2NT:Sv722SsaNYfdPBldt6+dBcjHduRJ6k

Score

10^/10

quasar office04 spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

26.27.32.75:4782

Mutex

0cfc6260-9d2e-4af5-9d5c-36502e10581d

Attributes

encryption_key
812D564FEDCE5BAF795823ACE48DC125C79FF0F6
install_name
Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Quasar Client Startup
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/892-1-0x0000000000EA0000-0x00000000011C4000-memory.dmp	family_quasar
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe	family_quasar

Executes dropped EXE 1 IoCs

Processes:

Client.exe

pid process

400 Client.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

3704 schtasks.exe
4360 schtasks.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

0c9d62335c53a76df0bdec0bc243d5b0_NeikiAnalytics.exeClient.exe

description pid process

Token: SeDebugPrivilege 892 0c9d62335c53a76df0bdec0bc243d5b0_NeikiAnalytics.exe
Token: SeDebugPrivilege 400 Client.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Client.exe

pid process

400 Client.exe

pid	process
400	Client.exe

pid	process
3704	schtasks.exe
4360	schtasks.exe

description	pid	process
Token: SeDebugPrivilege	892	0c9d62335c53a76df0bdec0bc243d5b0_NeikiAnalytics.exe
Token: SeDebugPrivilege	400	Client.exe

pid	process
400	Client.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

0c9d62335c53a76df0bdec0bc243d5b0_NeikiAnalytics.exeClient.exe

description	pid	process	target process
PID 892 wrote to memory of 4360	892	0c9d62335c53a76df0bdec0bc243d5b0_NeikiAnalytics.exe	schtasks.exe
PID 892 wrote to memory of 4360	892	0c9d62335c53a76df0bdec0bc243d5b0_NeikiAnalytics.exe	schtasks.exe
PID 892 wrote to memory of 400	892	0c9d62335c53a76df0bdec0bc243d5b0_NeikiAnalytics.exe	Client.exe
PID 892 wrote to memory of 400	892	0c9d62335c53a76df0bdec0bc243d5b0_NeikiAnalytics.exe	Client.exe
PID 400 wrote to memory of 3704	400	Client.exe	schtasks.exe
PID 400 wrote to memory of 3704	400	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\0c9d62335c53a76df0bdec0bc243d5b0_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\0c9d62335c53a76df0bdec0bc243d5b0_NeikiAnalytics.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:892

C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
2⤵
- Creates scheduled task(s)
PID:4360

C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:400

C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
3⤵
- Creates scheduled task(s)
PID:3704

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4088,i,11266875042087428226,16669718873272757238,262144 --variations-seed-version --mojo-platform-channel-handle=4440 /prefetch:8
1⤵
PID:5096

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:\Users\Admin\AppData\Roaming\SubDir\Client.exe

Filesize
3.1MB

MD5
0c9d62335c53a76df0bdec0bc243d5b0

SHA1
691c9d535f8942a9489e0baae271463443a5d298

SHA256
65bd56cfb876a9f4399e311f253ed83d45f7fed896eeba9f9c2dc7b6eb26d3f2

SHA512
4376bfe437defbf0e350b7220c7995a16cf0161881500f0ba7faae371afe5f4aef71858231d8f7b201381ff1c6c06adc132a72db578980019281536112c3b1c8

Download Submit
memory/400-9-0x00007FFE9FFB0000-0x00007FFEA0A71000-memory.dmp

Filesize
10.8MB

Download
memory/400-10-0x00007FFE9FFB0000-0x00007FFEA0A71000-memory.dmp

Filesize
10.8MB

Download
memory/400-11-0x00000000031B0000-0x0000000003200000-memory.dmp

Filesize
320KB

Download
memory/400-12-0x000000001C400000-0x000000001C4B2000-memory.dmp

Filesize
712KB

Download
memory/400-13-0x00007FFE9FFB0000-0x00007FFEA0A71000-memory.dmp

Filesize
10.8MB

Download
memory/892-0-0x00007FFE9FFB3000-0x00007FFE9FFB5000-memory.dmp

Filesize
8KB

Download
memory/892-1-0x0000000000EA0000-0x00000000011C4000-memory.dmp

Filesize
3.1MB

Download
memory/892-2-0x00007FFE9FFB0000-0x00007FFEA0A71000-memory.dmp

Filesize
10.8MB

Download
memory/892-8-0x00007FFE9FFB0000-0x00007FFEA0A71000-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