quasar | 870ffdfaec0f76ad2bac52a5c639a34813bf44c37a2c6b52ca582b7a704bbea0

Resubmissions

02-01-2025 13:29

250102-qrk14swngk 10

02-01-2025 13:05

250102-qbgnrawjgr 10

02-01-2025 12:58

250102-p7xt6ssnh1 10

Analysis

max time kernel
149s
max time network
151s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
02-01-2025 12:58

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General

Target

livedata.exe
Size

3.1MB
MD5

3393507c6698a8fa7552b474820fa233
SHA1

bc8e2078156b3b87341a0045eb581ac68f605767
SHA256

870ffdfaec0f76ad2bac52a5c639a34813bf44c37a2c6b52ca582b7a704bbea0
SHA512

e28f41de1271208944f86d06b265aa0ecadc899a53e41705a1f2df06b919b58d9d3d9dc227c3ccf8568e15491ca06135b26b2e9be7968b1512533b2a177998a9
SSDEEP

49152:DvOI22SsaNYfdPBldt698dBcjHjMS8mzwYoGd8JTHHB72eh2NT:Dvj22SsaNYfdPBldt6+dBcjHjMSxs

Score

10^/10

quasar office04 spyware stealer trojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

ahmettt-36012.portmap.io:36012

Mutex

b47a15cf-f43b-4ac8-b123-ef745bc58b02

Attributes

encryption_key
DFDF5CC5F6DA9099931F989981D7F56159CE6C69
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 family
quasar

Quasar payload 2 IoCs

resource	yara_rule
behavioral1/memory/3844-1-0x0000000000C10000-0x0000000000F34000-memory.dmp	family_quasar
behavioral1/files/0x001a00000002aace-5.dat	family_quasar

Executes dropped EXE 1 IoCs

pid	Process
3948	Client.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3844	livedata.exe
Token: SeDebugPrivilege	3948	Client.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3948	Client.exe
3948	Client.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
3948	Client.exe
3948	Client.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3844 wrote to memory of 3948	3844	livedata.exe	77
PID 3844 wrote to memory of 3948	3844	livedata.exe	77

C:\Users\Admin\AppData\Local\Temp\livedata.exe
"C:\Users\Admin\AppData\Local\Temp\livedata.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3844
- 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 FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:3948

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
3.1MB

MD5
3393507c6698a8fa7552b474820fa233

SHA1
bc8e2078156b3b87341a0045eb581ac68f605767

SHA256
870ffdfaec0f76ad2bac52a5c639a34813bf44c37a2c6b52ca582b7a704bbea0

SHA512
e28f41de1271208944f86d06b265aa0ecadc899a53e41705a1f2df06b919b58d9d3d9dc227c3ccf8568e15491ca06135b26b2e9be7968b1512533b2a177998a9

Download Submit
memory/3844-0-0x00007FF828ED3000-0x00007FF828ED5000-memory.dmp

Filesize
8KB

Download
memory/3844-1-0x0000000000C10000-0x0000000000F34000-memory.dmp

Filesize
3.1MB

Download
memory/3844-2-0x00007FF828ED0000-0x00007FF829992000-memory.dmp

Filesize
10.8MB

Download
memory/3844-9-0x00007FF828ED0000-0x00007FF829992000-memory.dmp

Filesize
10.8MB

Download
memory/3948-8-0x00007FF828ED0000-0x00007FF829992000-memory.dmp

Filesize
10.8MB

Download
memory/3948-10-0x00007FF828ED0000-0x00007FF829992000-memory.dmp

Filesize
10.8MB

Download
memory/3948-11-0x000000001BC30000-0x000000001BC80000-memory.dmp

Filesize
320KB

Download
memory/3948-12-0x000000001BD40000-0x000000001BDF2000-memory.dmp

Filesize
712KB

Download
memory/3948-15-0x000000001BCA0000-0x000000001BCB2000-memory.dmp

Filesize
72KB

Download
memory/3948-16-0x000000001BD00000-0x000000001BD3C000-memory.dmp

Filesize
240KB

Download
memory/3948-17-0x00007FF828ED0000-0x00007FF829992000-memory.dmp

Filesize
10.8MB

Download