Overview
overview
10Static
static
10Quasar.v1.4.1.zip
windows7-x64
10Quasar.v1.4.1.zip
windows10-2004-x64
1Quasar v1....se.txt
windows7-x64
1Quasar v1....se.txt
windows10-2004-x64
1Quasar v1....e.html
windows7-x64
3Quasar v1....e.html
windows10-2004-x64
3Quasar v1....se.txt
windows7-x64
1Quasar v1....se.txt
windows10-2004-x64
1Quasar v1....se.txt
windows7-x64
1Quasar v1....se.txt
windows10-2004-x64
1Quasar v1....se.txt
windows7-x64
1Quasar v1....se.txt
windows10-2004-x64
1Quasar v1....se.txt
windows7-x64
1Quasar v1....se.txt
windows10-2004-x64
1Quasar v1....se.txt
windows7-x64
1Quasar v1....se.txt
windows10-2004-x64
1Quasar v1....se.txt
windows7-x64
1Quasar v1....se.txt
windows10-2004-x64
1Quasar v1....to.dll
windows7-x64
1Quasar v1....to.dll
windows10-2004-x64
1Quasar v1....ok.dll
windows7-x64
1Quasar v1....ok.dll
windows10-2004-x64
1Quasar v1.4.1/LICENSE
windows7-x64
1Quasar v1.4.1/LICENSE
windows10-2004-x64
1Quasar v1....db.dll
windows7-x64
1Quasar v1....db.dll
windows10-2004-x64
1Quasar v1....db.dll
windows7-x64
1Quasar v1....db.dll
windows10-2004-x64
1Quasar v1....ks.dll
windows7-x64
1Quasar v1....ks.dll
windows10-2004-x64
1Quasar v1....il.dll
windows7-x64
1Quasar v1....il.dll
windows10-2004-x64
1Analysis
-
max time kernel
117s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
23-01-2025 10:52
Behavioral task
behavioral1
Sample
Quasar.v1.4.1.zip
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
Quasar.v1.4.1.zip
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
Quasar v1.4.1/3rdPartyLicenses/Be.HexEditor_license.txt
Resource
win7-20240903-en
Behavioral task
behavioral4
Sample
Quasar v1.4.1/3rdPartyLicenses/Be.HexEditor_license.txt
Resource
win10v2004-20241007-en
Behavioral task
behavioral5
Sample
Quasar v1.4.1/3rdPartyLicenses/BouncyCastle_license.html
Resource
win7-20240729-en
Behavioral task
behavioral6
Sample
Quasar v1.4.1/3rdPartyLicenses/BouncyCastle_license.html
Resource
win10v2004-20241007-en
Behavioral task
behavioral7
Sample
Quasar v1.4.1/3rdPartyLicenses/GlobalMouseKeyHook_license.txt
Resource
win7-20240903-en
Behavioral task
behavioral8
Sample
Quasar v1.4.1/3rdPartyLicenses/GlobalMouseKeyHook_license.txt
Resource
win10v2004-20241007-en
Behavioral task
behavioral9
Sample
Quasar v1.4.1/3rdPartyLicenses/Mono.Cecil_license.txt
Resource
win7-20240903-en
Behavioral task
behavioral10
Sample
Quasar v1.4.1/3rdPartyLicenses/Mono.Cecil_license.txt
Resource
win10v2004-20241007-en
Behavioral task
behavioral11
Sample
Quasar v1.4.1/3rdPartyLicenses/Open.Nat_license.txt
Resource
win7-20240903-en
Behavioral task
behavioral12
Sample
Quasar v1.4.1/3rdPartyLicenses/Open.Nat_license.txt
Resource
win10v2004-20241007-en
Behavioral task
behavioral13
Sample
Quasar v1.4.1/3rdPartyLicenses/ResourceLib_license.txt
Resource
win7-20240903-en
Behavioral task
behavioral14
Sample
Quasar v1.4.1/3rdPartyLicenses/ResourceLib_license.txt
Resource
win10v2004-20241007-en
Behavioral task
behavioral15
Sample
Quasar v1.4.1/3rdPartyLicenses/SilkIcons_license.txt
Resource
win7-20240729-en
Behavioral task
behavioral16
Sample
Quasar v1.4.1/3rdPartyLicenses/SilkIcons_license.txt
Resource
win10v2004-20241007-en
Behavioral task
behavioral17
Sample
Quasar v1.4.1/3rdPartyLicenses/protobuf-net_license.txt
Resource
win7-20240903-en
Behavioral task
behavioral18
Sample
Quasar v1.4.1/3rdPartyLicenses/protobuf-net_license.txt
Resource
win10v2004-20241007-en
Behavioral task
behavioral19
Sample
Quasar v1.4.1/BouncyCastle.Crypto.dll
Resource
win7-20240903-en
Behavioral task
behavioral20
Sample
Quasar v1.4.1/BouncyCastle.Crypto.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral21
Sample
Quasar v1.4.1/Gma.System.MouseKeyHook.dll
Resource
win7-20240903-en
Behavioral task
behavioral22
Sample
Quasar v1.4.1/Gma.System.MouseKeyHook.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral23
Sample
Quasar v1.4.1/LICENSE
Resource
win7-20241010-en
Behavioral task
behavioral24
Sample
Quasar v1.4.1/LICENSE
Resource
win10v2004-20241007-en
Behavioral task
behavioral25
Sample
Quasar v1.4.1/Mono.Cecil.Mdb.dll
Resource
win7-20240903-en
Behavioral task
behavioral26
Sample
Quasar v1.4.1/Mono.Cecil.Mdb.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral27
Sample
Quasar v1.4.1/Mono.Cecil.Pdb.dll
Resource
win7-20240903-en
Behavioral task
behavioral28
Sample
Quasar v1.4.1/Mono.Cecil.Pdb.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral29
Sample
Quasar v1.4.1/Mono.Cecil.Rocks.dll
Resource
win7-20240903-en
Behavioral task
behavioral30
Sample
Quasar v1.4.1/Mono.Cecil.Rocks.dll
Resource
win10v2004-20241007-en
Behavioral task
behavioral31
Sample
Quasar v1.4.1/Mono.Cecil.dll
Resource
win7-20240729-en
Behavioral task
behavioral32
Sample
Quasar v1.4.1/Mono.Cecil.dll
Resource
win10v2004-20241007-en
General
-
Target
Quasar.v1.4.1.zip
-
Size
3.3MB
-
MD5
13aa4bf4f5ed1ac503c69470b1ede5c1
-
SHA1
c0b7dadff8ac37f6d9fd00ae7f375e12812bfc00
-
SHA256
4cdeb2eae1cec1ab07077142313c524e9cf360cdec63497538c4405c2d8ded62
-
SHA512
767b03e4e0c2a97cb0282b523bcad734f0c6d226cd1e856f6861e6ae83401d0d30946ad219c8c5de3c90028a0141d3dc0111c85e0a0952156cf09e189709fa7d
-
SSDEEP
49152:lYLmNgMh/9yUsRFeWMyYISDSwtfxZQNemi57PdHmeFINp/lFnsDbNFNepL6DJo+J:mL9U1yUUQykOQ91XFYBlR8P9d5uNJo9
Malware Config
Signatures
-
Quasar family
-
Quasar payload 3 IoCs
resource yara_rule behavioral1/files/0x0008000000015f38-4.dat family_quasar behavioral1/memory/2476-11-0x0000000000FC0000-0x00000000010F8000-memory.dmp family_quasar behavioral1/memory/2908-24-0x00000000013C0000-0x00000000014F8000-memory.dmp family_quasar -
Executes dropped EXE 2 IoCs
pid Process 2476 Quasar.exe 2908 Quasar.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 316 7zFM.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 316 7zFM.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeRestorePrivilege 316 7zFM.exe Token: 35 316 7zFM.exe Token: SeSecurityPrivilege 316 7zFM.exe Token: SeDebugPrivilege 2476 Quasar.exe Token: SeSecurityPrivilege 316 7zFM.exe Token: SeDebugPrivilege 2908 Quasar.exe -
Suspicious use of FindShellTrayWindow 3 IoCs
pid Process 316 7zFM.exe 316 7zFM.exe 316 7zFM.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 316 wrote to memory of 2476 316 7zFM.exe 30 PID 316 wrote to memory of 2476 316 7zFM.exe 30 PID 316 wrote to memory of 2476 316 7zFM.exe 30 PID 2476 wrote to memory of 2800 2476 Quasar.exe 31 PID 2476 wrote to memory of 2800 2476 Quasar.exe 31 PID 2476 wrote to memory of 2800 2476 Quasar.exe 31 PID 316 wrote to memory of 2908 316 7zFM.exe 33 PID 316 wrote to memory of 2908 316 7zFM.exe 33 PID 316 wrote to memory of 2908 316 7zFM.exe 33 PID 2908 wrote to memory of 2596 2908 Quasar.exe 34 PID 2908 wrote to memory of 2596 2908 Quasar.exe 34 PID 2908 wrote to memory of 2596 2908 Quasar.exe 34
Processes
-
C:\Program Files\7-Zip\7zFM.exe"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\Quasar.v1.4.1.zip"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:316 -
C:\Users\Admin\AppData\Local\Temp\7zOC31245E6\Quasar.exe"C:\Users\Admin\AppData\Local\Temp\7zOC31245E6\Quasar.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2476 -
C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 2476 -s 5843⤵PID:2800
-
-
-
C:\Users\Admin\AppData\Local\Temp\7zOC3115287\Quasar.exe"C:\Users\Admin\AppData\Local\Temp\7zOC3115287\Quasar.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2908 -
C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 2908 -s 5803⤵PID:2596
-
-
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
1.2MB
MD512ebf922aa80d13f8887e4c8c5e7be83
SHA17f87a80513e13efd45175e8f2511c2cd17ff51e8
SHA25643315abb9c8be9a39782bd8694a7ea9f16a867500dc804454d04b8bf2c15c51e
SHA512fda5071e15cf077d202b08db741bbfb3dbd815acc41deec7b7d44e055cac408e2f2de7233f8f9c5c618afd00ffc2fc4c6e8352cbdf18f9aab55d980dcb58a275