quasar | ee060b6a8e139aa8169c8d738b1edde88550f61d69a89168648f8a359d937840

Analysis

max time kernel
77s
max time network
82s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
29-11-2024 16:01

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General

Target

Nemoxen.exe
Size

676KB
MD5

716e0b20fd82fb68e9f12545d40f1885
SHA1

0126cb0ee18f2b7500dd92960f88292be25810b1
SHA256

ee060b6a8e139aa8169c8d738b1edde88550f61d69a89168648f8a359d937840
SHA512

8f1c0c245979c5f27191607dc778cc6e4b6a10d41f42ec621891d345cef3eb1353b46c45496fdf9c89026dcf9671d3b5240730e80c25270dfdabf886a91105c4
SSDEEP

6144:jTEgdc0YWX7IxUpGREWxtTNHuagRsqbRscEWOb8F9mo0aID/kIucTR3PF+fE:jTEgdfY3xUc1osmpgoyDMIucdd+8

Score

10^/10

quasar neoxen spyware trojan

Malware Config

Extracted

Family

quasar

Version

1.4.0

Botnet

Neoxen

192.168.0.42:4782

Mutex

5e5c2635-6e73-4945-84d1-6fff2a604503

Attributes

encryption_key
4D634613C08A5953B861CE48D768ABEFCD1484A3
install_name
coolpro12.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Neoxen
subdirectory
SubDir

Signatures

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

Quasar payload 3 IoCs

resource	yara_rule
behavioral1/memory/1748-1-0x00000000008B0000-0x0000000000960000-memory.dmp	family_quasar
behavioral1/files/0x0009000000016d46-5.dat	family_quasar
behavioral1/memory/1692-8-0x0000000000A90000-0x0000000000B40000-memory.dmp	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
1692	coolpro12.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1876	schtasks.exe
2788	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1748	Nemoxen.exe
Token: SeDebugPrivilege	1692	coolpro12.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1692	coolpro12.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1692	coolpro12.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1748 wrote to memory of 1876	1748	Nemoxen.exe	30
PID 1748 wrote to memory of 1876	1748	Nemoxen.exe	30
PID 1748 wrote to memory of 1876	1748	Nemoxen.exe	30
PID 1748 wrote to memory of 1692	1748	Nemoxen.exe	32
PID 1748 wrote to memory of 1692	1748	Nemoxen.exe	32
PID 1748 wrote to memory of 1692	1748	Nemoxen.exe	32
PID 1692 wrote to memory of 2788	1692	coolpro12.exe	33
PID 1692 wrote to memory of 2788	1692	coolpro12.exe	33
PID 1692 wrote to memory of 2788	1692	coolpro12.exe	33

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\Nemoxen.exe
"C:\Users\Admin\AppData\Local\Temp\Nemoxen.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1748
- C:\Windows\system32\schtasks.exe
  "schtasks" /create /tn "Neoxen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\Nemoxen.exe" /rl HIGHEST /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1876
- C:\Users\Admin\AppData\Roaming\SubDir\coolpro12.exe
  "C:\Users\Admin\AppData\Roaming\SubDir\coolpro12.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:1692
- - C:\Windows\system32\schtasks.exe
    "schtasks" /create /tn "Neoxen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\coolpro12.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2788

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\SubDir\coolpro12.exe

Filesize
676KB

MD5
716e0b20fd82fb68e9f12545d40f1885

SHA1
0126cb0ee18f2b7500dd92960f88292be25810b1

SHA256
ee060b6a8e139aa8169c8d738b1edde88550f61d69a89168648f8a359d937840

SHA512
8f1c0c245979c5f27191607dc778cc6e4b6a10d41f42ec621891d345cef3eb1353b46c45496fdf9c89026dcf9671d3b5240730e80c25270dfdabf886a91105c4

Download Submit
memory/1692-10-0x000007FEF5D90000-0x000007FEF677C000-memory.dmp

Filesize
9.9MB

Download
memory/1692-9-0x000007FEF5D90000-0x000007FEF677C000-memory.dmp

Filesize
9.9MB

Download
memory/1692-8-0x0000000000A90000-0x0000000000B40000-memory.dmp

Filesize
704KB

Download
memory/1692-11-0x000007FEF5D90000-0x000007FEF677C000-memory.dmp

Filesize
9.9MB

Download
memory/1748-0-0x000007FEF5D93000-0x000007FEF5D94000-memory.dmp

Filesize
4KB

Download
memory/1748-1-0x00000000008B0000-0x0000000000960000-memory.dmp

Filesize
704KB

Download
memory/1748-2-0x000007FEF5D90000-0x000007FEF677C000-memory.dmp

Filesize
9.9MB

Download
memory/1748-7-0x000007FEF5D90000-0x000007FEF677C000-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