quasar | fcd5b843d50ec2f973aaa27e54b6bf045931cc3cb8d9bea4edaade352fe0f7d5

Analysis

max time kernel
299s
max time network
289s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
02-06-2024 06:22

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General

Target

uni/Uni - Copy (12) - Copy.exe
Size

409KB
MD5

b70fdac25a99501e3cae11f1b775249e
SHA1

3c59226479bfdcd1b2927bcfb1a7516d4cb8dd71
SHA256

51ff3eb450a786c1aaa75ff889f2fd256412a7b75d04277fdf9fcccc20e57246
SHA512

43f0d5d6e5f0d5febba537c109ffdbc250bbb6e9725e635a43ec975b0353048eaeee50b6e9274cd5e072ea6b0cea32439bd37408b2528832f467f2075f74ca44
SSDEEP

12288:gpbJjGut6AoE3hVVdFaC/eZPTMTDlpgfJCKuMsVs:oVaurMLcDlpRKai

Score

10^/10

quasar seroxen spyware trojan

Malware Config

Extracted

Family

quasar

Version

3.1.5

Botnet

SeroXen

panel-slave.gl.at.ply.gg:57059

panel-slave.gl.at.ply.gg:27892

Mutex

$Sxr-rpL8EItHN3pqIQQVy2

Attributes

encryption_key
Lme7VBS3l58VwLM69PNM
install_name
Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
SeroXen
subdirectory
SubDir

Signatures

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

Quasar payload 3 IoCs

Processes:

resource	yara_rule
behavioral5/memory/3068-1-0x00000000001A0000-0x000000000020C000-memory.dmp	family_quasar
\Users\Admin\AppData\Roaming\SubDir\Client.exe	family_quasar
behavioral5/memory/2560-10-0x0000000001180000-0x00000000011EC000-memory.dmp	family_quasar

Executes dropped EXE 2 IoCs

Processes:

Client.exe8IKa7Thci6M3.exe

pid process

2560 Client.exe
1404 8IKa7Thci6M3.exe
Loads dropped DLL 2 IoCs

Processes:

Uni - Copy (12) - Copy.exeClient.exe

pid process

3068 Uni - Copy (12) - Copy.exe
2560 Client.exe
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

2 ip-api.com
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 4 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

SCHTASKS.exeschtasks.exeschtasks.exeSCHTASKS.exe

pid process

2656 SCHTASKS.exe
2624 schtasks.exe
2584 schtasks.exe
2484 SCHTASKS.exe

pid	process
3068	Uni - Copy (12) - Copy.exe
2560	Client.exe

flow	ioc
2	ip-api.com

pid	process
2656	SCHTASKS.exe
2624	schtasks.exe
2584	schtasks.exe
2484	SCHTASKS.exe

Modifies registry class 3 IoCs

Processes:

rundll32.exerundll32.exerundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

vlc.exevlc.exe

pid process

1876 vlc.exe
2524 vlc.exe
Suspicious behavior: GetForegroundWindowSpam 3 IoCs

Processes:

vlc.exevlc.exeAcroRd32.exe

pid process

1876 vlc.exe
2524 vlc.exe
1572 AcroRd32.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

Uni - Copy (12) - Copy.exeClient.exeAUDIODG.EXE

description	pid	process
Token: SeDebugPrivilege	3068	Uni - Copy (12) - Copy.exe
Token: SeDebugPrivilege	2560	Client.exe
Token: 33	1108	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1108	AUDIODG.EXE
Token: 33	1108	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1108	AUDIODG.EXE

Suspicious use of FindShellTrayWindow 18 IoCs

Processes:

vlc.exevlc.exe

pid	process
1876	vlc.exe
1876	vlc.exe
1876	vlc.exe
1876	vlc.exe
1876	vlc.exe
1876	vlc.exe
1876	vlc.exe
1876	vlc.exe
1876	vlc.exe
1876	vlc.exe
2524	vlc.exe
2524	vlc.exe
2524	vlc.exe
2524	vlc.exe
2524	vlc.exe
2524	vlc.exe
2524	vlc.exe
2524	vlc.exe

Suspicious use of SendNotifyMessage 14 IoCs

Processes:

vlc.exevlc.exe

pid	process
1876	vlc.exe
1876	vlc.exe
1876	vlc.exe
1876	vlc.exe
1876	vlc.exe
1876	vlc.exe
1876	vlc.exe
2524	vlc.exe
2524	vlc.exe
2524	vlc.exe
2524	vlc.exe
2524	vlc.exe
2524	vlc.exe
2524	vlc.exe

Suspicious use of SetWindowsHookEx 10 IoCs

Processes:

Client.exe8IKa7Thci6M3.exeAcroRd32.exevlc.exevlc.exe

pid	process
2560	Client.exe
1404	8IKa7Thci6M3.exe
1572	AcroRd32.exe
1572	AcroRd32.exe
1572	AcroRd32.exe
1876	vlc.exe
2524	vlc.exe
1572	AcroRd32.exe
1572	AcroRd32.exe
1572	AcroRd32.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

Uni - Copy (12) - Copy.exeClient.exe

description	pid	process	target process
PID 3068 wrote to memory of 2624	3068	Uni - Copy (12) - Copy.exe	schtasks.exe
PID 3068 wrote to memory of 2624	3068	Uni - Copy (12) - Copy.exe	schtasks.exe
PID 3068 wrote to memory of 2624	3068	Uni - Copy (12) - Copy.exe	schtasks.exe
PID 3068 wrote to memory of 2624	3068	Uni - Copy (12) - Copy.exe	schtasks.exe
PID 3068 wrote to memory of 2560	3068	Uni - Copy (12) - Copy.exe	Client.exe
PID 3068 wrote to memory of 2560	3068	Uni - Copy (12) - Copy.exe	Client.exe
PID 3068 wrote to memory of 2560	3068	Uni - Copy (12) - Copy.exe	Client.exe
PID 3068 wrote to memory of 2560	3068	Uni - Copy (12) - Copy.exe	Client.exe
PID 3068 wrote to memory of 2560	3068	Uni - Copy (12) - Copy.exe	Client.exe
PID 3068 wrote to memory of 2560	3068	Uni - Copy (12) - Copy.exe	Client.exe
PID 3068 wrote to memory of 2560	3068	Uni - Copy (12) - Copy.exe	Client.exe
PID 2560 wrote to memory of 2584	2560	Client.exe	schtasks.exe
PID 2560 wrote to memory of 2584	2560	Client.exe	schtasks.exe
PID 2560 wrote to memory of 2584	2560	Client.exe	schtasks.exe
PID 2560 wrote to memory of 2584	2560	Client.exe	schtasks.exe
PID 3068 wrote to memory of 2484	3068	Uni - Copy (12) - Copy.exe	SCHTASKS.exe
PID 3068 wrote to memory of 2484	3068	Uni - Copy (12) - Copy.exe	SCHTASKS.exe
PID 3068 wrote to memory of 2484	3068	Uni - Copy (12) - Copy.exe	SCHTASKS.exe
PID 3068 wrote to memory of 2484	3068	Uni - Copy (12) - Copy.exe	SCHTASKS.exe
PID 2560 wrote to memory of 1404	2560	Client.exe	8IKa7Thci6M3.exe
PID 2560 wrote to memory of 1404	2560	Client.exe	8IKa7Thci6M3.exe
PID 2560 wrote to memory of 1404	2560	Client.exe	8IKa7Thci6M3.exe
PID 2560 wrote to memory of 1404	2560	Client.exe	8IKa7Thci6M3.exe
PID 2560 wrote to memory of 2656	2560	Client.exe	SCHTASKS.exe
PID 2560 wrote to memory of 2656	2560	Client.exe	SCHTASKS.exe
PID 2560 wrote to memory of 2656	2560	Client.exe	SCHTASKS.exe
PID 2560 wrote to memory of 2656	2560	Client.exe	SCHTASKS.exe

C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (12) - Copy.exe
"C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (12) - Copy.exe"
1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3068

C:\Windows\SysWOW64\schtasks.exe
"schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (12) - Copy.exe" /rl HIGHEST /f
2⤵
- Creates scheduled task(s)
PID:2624

C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2560

C:\Windows\SysWOW64\schtasks.exe
"schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
3⤵
- Creates scheduled task(s)
PID:2584

C:\Users\Admin\AppData\Local\Temp\8IKa7Thci6M3.exe
"C:\Users\Admin\AppData\Local\Temp\8IKa7Thci6M3.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:1404

C:\Windows\SysWOW64\SCHTASKS.exe
"SCHTASKS.exe" /create /tn "$77Client.exe" /tr "'C:\Users\Admin\AppData\Roaming\SubDir\Client.exe'" /sc onlogon /rl HIGHEST
3⤵
- Creates scheduled task(s)
PID:2656

C:\Windows\SysWOW64\SCHTASKS.exe
"SCHTASKS.exe" /create /tn "$77Uni - Copy (12) - Copy.exe" /tr "'C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (12) - Copy.exe'" /sc onlogon /rl HIGHEST
2⤵
- Creates scheduled task(s)
PID:2484

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x568
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1108

C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe"
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:1572

C:\Program Files\VideoLAN\VLC\vlc.exe
"C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\Desktop\UnlockGet.wvx"
1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:1876

C:\Program Files\VideoLAN\VLC\vlc.exe
"C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\Desktop\DisableClose.mid"
1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:2524

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\Desktop\CheckpointMerge.lock
1⤵
- Modifies registry class
PID:2432

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\Desktop\CheckpointMerge.lock
1⤵
- Modifies registry class
PID:1756

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\Desktop\CheckpointMerge.lock
1⤵
- Modifies registry class
PID:1988

C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe"
1⤵
PID:2616

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\8IKa7Thci6M3.exe
Filesize
277KB

MD5
dac0c5b2380cbdd93b46763427c9f8df

SHA1
038089e1a0ac8375be797fc3ce7ae719abc72834

SHA256
d02538788fb57f568ece292f5fc20e9775c86d504de67f57e22534f84adc73c6

SHA512
05cc1f6bf25a6545a06c735ae7a4a7fc25489bdb9fbc8d5797be623982662c4a93cba2d20bfe14313ef1548eaaa691e55fabdd8e3d3e45de9ab42dc62f9a7023

Download Submit
C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Filesize
3KB

MD5
d5bbb25f070233e20658d344197e9ae5

SHA1
414dedaa1764a8472b930763fa3adb07d16f361a

SHA256
6546f8e5df2e0b09b9b43b10ee9b19d9e8a651233d7cfc26805c3572a2093596

SHA512
e3077b8385df3becb714c21f7d8afc21fa8da0fee9e1a91ed62424c89462095ddbb4357c4694ec02f5aea8c1137e279fb662be7052402e5a5d6aa94e934984fd

Download Submit
C:\Users\Admin\AppData\Roaming\vlc\vlc-qt-interface.ini
Filesize
75B

MD5
f32dcaae47fcad445fdbada10849c0a7

SHA1
3039f143da172513bad9038b7d095425e18e9064

SHA256
ff2b606e0fd7d4116428535d271eec55f4afaf322a8def5ee6f675ab73f638b6

SHA512
fa20157009fd7e124d75becd583275d4aa623432097d6f213499f8bf190c968004c56502de72d10d13155e11ce253eef3080c71405e498c16482803dad82ee1f

Download Submit
C:\Users\Admin\AppData\Roaming\vlc\vlcrc.2524
Filesize
93KB

MD5
478a4a09f4f74e97335cd4d5e9da7ab5

SHA1
3c4f1dc52a293f079095d0b0370428ec8e8f9315

SHA256
884b59950669842f3c45e6da3480cd9a553538b951fb155b435b48ff38683974

SHA512
e96719663cd264132a8e1ea8c3f8a148c778a0c68caa2468ba47629393605b197dd9e00efad91f389de9fcc77b04981a0cf87f785f3c645cdc9e4ebd98060ca1

Download Submit
\Users\Admin\AppData\Roaming\SubDir\Client.exe
Filesize
409KB

MD5
b70fdac25a99501e3cae11f1b775249e

SHA1
3c59226479bfdcd1b2927bcfb1a7516d4cb8dd71

SHA256
51ff3eb450a786c1aaa75ff889f2fd256412a7b75d04277fdf9fcccc20e57246

SHA512
43f0d5d6e5f0d5febba537c109ffdbc250bbb6e9725e635a43ec975b0353048eaeee50b6e9274cd5e072ea6b0cea32439bd37408b2528832f467f2075f74ca44

Download Submit
memory/1876-79-0x000007FEF4B70000-0x000007FEF4B82000-memory.dmp

Filesize
72KB

Download
memory/1876-66-0x000007FEF4E30000-0x000007FEF4E4B000-memory.dmp

Filesize
108KB

Download
memory/1876-78-0x000007FEF4B90000-0x000007FEF4BA1000-memory.dmp

Filesize
68KB

Download
memory/1876-77-0x000007FEF4BB0000-0x000007FEF4BD3000-memory.dmp

Filesize
140KB

Download
memory/1876-50-0x000007FEF6300000-0x000007FEF65B4000-memory.dmp

Filesize
2.7MB

Download
memory/1876-51-0x000007FEF7820000-0x000007FEF7838000-memory.dmp

Filesize
96KB

Download
memory/1876-57-0x000007FEF5FD0000-0x000007FEF61D0000-memory.dmp

Filesize
2.0MB

Download
memory/1876-49-0x000007FEF7470000-0x000007FEF74A4000-memory.dmp

Filesize
208KB

Download
memory/1876-48-0x000000013F1B0000-0x000000013F2A8000-memory.dmp

Filesize
992KB

Download
memory/1876-54-0x000007FEF6D60000-0x000007FEF6D77000-memory.dmp

Filesize
92KB

Download
memory/1876-56-0x000007FEF6D20000-0x000007FEF6D3D000-memory.dmp

Filesize
116KB

Download
memory/1876-55-0x000007FEF6D40000-0x000007FEF6D51000-memory.dmp

Filesize
68KB

Download
memory/1876-53-0x000007FEF6D80000-0x000007FEF6D91000-memory.dmp

Filesize
68KB

Download
memory/1876-52-0x000007FEF6E70000-0x000007FEF6E87000-memory.dmp

Filesize
92KB

Download
memory/1876-61-0x000007FEF6CE0000-0x000007FEF6CF8000-memory.dmp

Filesize
96KB

Download
memory/1876-76-0x000007FEF4BE0000-0x000007FEF4BF7000-memory.dmp

Filesize
92KB

Download
memory/1876-68-0x000007FEF4DF0000-0x000007FEF4E08000-memory.dmp

Filesize
96KB

Download
memory/1876-62-0x000007FEF4EB0000-0x000007FEF5F5B000-memory.dmp

Filesize
16.7MB

Download
memory/1876-80-0x000007FEF3E40000-0x000007FEF3F52000-memory.dmp

Filesize
1.1MB

Download
memory/1876-58-0x000007FEF6D00000-0x000007FEF6D11000-memory.dmp

Filesize
68KB

Download
memory/1876-59-0x000007FEF5F90000-0x000007FEF5FCF000-memory.dmp

Filesize
252KB

Download
memory/1876-63-0x000007FEF4E90000-0x000007FEF4EA1000-memory.dmp

Filesize
68KB

Download
memory/1876-60-0x000007FEF5F60000-0x000007FEF5F81000-memory.dmp

Filesize
132KB

Download
memory/1876-75-0x000007FEF4C00000-0x000007FEF4C24000-memory.dmp

Filesize
144KB

Download
memory/1876-74-0x000007FEF4C30000-0x000007FEF4C58000-memory.dmp

Filesize
160KB

Download
memory/1876-73-0x000007FEF4C60000-0x000007FEF4CB6000-memory.dmp

Filesize
344KB

Download
memory/1876-72-0x000007FEF4CC0000-0x000007FEF4CD1000-memory.dmp

Filesize
68KB

Download
memory/1876-71-0x000007FEF4CE0000-0x000007FEF4D4F000-memory.dmp

Filesize
444KB

Download
memory/1876-70-0x000007FEF4D50000-0x000007FEF4DB7000-memory.dmp

Filesize
412KB

Download
memory/1876-69-0x000007FEF4DC0000-0x000007FEF4DF0000-memory.dmp

Filesize
192KB

Download
memory/1876-67-0x000007FEF4E10000-0x000007FEF4E21000-memory.dmp

Filesize
68KB

Download
memory/1876-64-0x000007FEF4E70000-0x000007FEF4E81000-memory.dmp

Filesize
68KB

Download
memory/1876-65-0x000007FEF4E50000-0x000007FEF4E61000-memory.dmp

Filesize
68KB

Download
memory/2560-12-0x0000000074BF0000-0x00000000752DE000-memory.dmp

Filesize
6.9MB

Download
memory/2560-15-0x0000000074BF0000-0x00000000752DE000-memory.dmp

Filesize
6.9MB

Download
memory/2560-119-0x0000000074BF0000-0x00000000752DE000-memory.dmp

Filesize
6.9MB

Download
memory/2560-10-0x0000000001180000-0x00000000011EC000-memory.dmp

Filesize
432KB

Download
memory/2560-11-0x0000000074BF0000-0x00000000752DE000-memory.dmp

Filesize
6.9MB

Download
memory/2560-16-0x0000000074BF0000-0x00000000752DE000-memory.dmp

Filesize
6.9MB

Download
memory/3068-0-0x0000000074BFE000-0x0000000074BFF000-memory.dmp

Filesize
4KB

Download
memory/3068-2-0x0000000074BF0000-0x00000000752DE000-memory.dmp

Filesize
6.9MB

Download
memory/3068-14-0x0000000074BF0000-0x00000000752DE000-memory.dmp

Filesize
6.9MB

Download
memory/3068-1-0x00000000001A0000-0x000000000020C000-memory.dmp

Filesize
432KB

Download