Analysis
-
max time kernel
142s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
06/12/2022, 01:46
Static task
static1
Behavioral task
behavioral1
Sample
3332f27ec0c41f89c703df060b9daa88ccbd37c32c008d422c3657881dd3ccb1.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
3332f27ec0c41f89c703df060b9daa88ccbd37c32c008d422c3657881dd3ccb1.exe
Resource
win10v2004-20220812-en
General
-
Target
3332f27ec0c41f89c703df060b9daa88ccbd37c32c008d422c3657881dd3ccb1.exe
-
Size
64KB
-
MD5
deddae20f521af57b793b3cbec0cd3a0
-
SHA1
5c46f84661e59524d4a25ce3ecb24e9e70f887f9
-
SHA256
3332f27ec0c41f89c703df060b9daa88ccbd37c32c008d422c3657881dd3ccb1
-
SHA512
73a4b02f76dd266f74c190c5fe31402e5a867ee2769c306b2a7f8902436e98523648cd3f80a5850e5b88689e326342185675dbe56cb46db5e2feaf329d469e4f
-
SSDEEP
384:WfvwV69xlL2ZD0Pba3FA+vkyn3Sz7ki2PGlSNrk6u2c6qGzf:O4g4ZdFtvfn3SHki2GljZf6qQ
Malware Config
Signatures
-
Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\C:\Windows\fonts\myxblbyc.dll = "{E58B05EE-6CA5-42E1-A0CE-82169DDEE42C}" 3332f27ec0c41f89c703df060b9daa88ccbd37c32c008d422c3657881dd3ccb1.exe -
Loads dropped DLL 2 IoCs
pid Process 4300 3332f27ec0c41f89c703df060b9daa88ccbd37c32c008d422c3657881dd3ccb1.exe 1516 regsvr32.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\fonts\myxblbyc.tmp 3332f27ec0c41f89c703df060b9daa88ccbd37c32c008d422c3657881dd3ccb1.exe File opened for modification C:\Windows\fonts\gzqqxx01.dat 3332f27ec0c41f89c703df060b9daa88ccbd37c32c008d422c3657881dd3ccb1.exe -
Modifies registry class 46 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\QQXX.qqxxatl.1\ = "qqxxatl Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E58B05EE-6CA5-42E1-A0CE-82169DDEE42C} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E58B05EE-6CA5-42E1-A0CE-82169DDEE42C}\ProgID\ = "QQXX.qqxxatl.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{334E586E-C2FF-44DB-953D-1C6B988C638F} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{334E586E-C2FF-44DB-953D-1C6B988C638F}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{334E586E-C2FF-44DB-953D-1C6B988C638F}\TypeLib\ = "{FBB7ADFA-C76C-4BD4-864D-F438D2DDCE80}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{334E586E-C2FF-44DB-953D-1C6B988C638F}\ = "Iqqxxatl" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\QQXX.qqxxatl\CLSID\ = "{E58B05EE-6CA5-42E1-A0CE-82169DDEE42C}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBB7ADFA-C76C-4BD4-864D-F438D2DDCE80}\1.0\ = "QQXX 1.0 Type Library" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{334E586E-C2FF-44DB-953D-1C6B988C638F}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBB7ADFA-C76C-4BD4-864D-F438D2DDCE80}\1.0\HELPDIR regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\QQXX.qqxxatl.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\QQXX.qqxxatl.1\CLSID\ = "{E58B05EE-6CA5-42E1-A0CE-82169DDEE42C}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\QQXX.qqxxatl\CurVer\ = "QQXX.qqxxatl.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E58B05EE-6CA5-42E1-A0CE-82169DDEE42C}\ProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBB7ADFA-C76C-4BD4-864D-F438D2DDCE80}\1.0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBB7ADFA-C76C-4BD4-864D-F438D2DDCE80}\1.0\FLAGS regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBB7ADFA-C76C-4BD4-864D-F438D2DDCE80}\1.0\0\win32\ = "C:\\Windows\\fonts\\myxblbyc.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBB7ADFA-C76C-4BD4-864D-F438D2DDCE80}\1.0\HELPDIR\ = "C:\\Windows\\fonts" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{334E586E-C2FF-44DB-953D-1C6B988C638F}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E58B05EE-6CA5-42E1-A0CE-82169DDEE42C}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBB7ADFA-C76C-4BD4-864D-F438D2DDCE80}\1.0\0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{334E586E-C2FF-44DB-953D-1C6B988C638F}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\QQXX.qqxxatl\ = "qqxxatl Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\QQXX.qqxxatl\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E58B05EE-6CA5-42E1-A0CE-82169DDEE42C}\VersionIndependentProgID\ = "QQXX.qqxxatl" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E58B05EE-6CA5-42E1-A0CE-82169DDEE42C}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E58B05EE-6CA5-42E1-A0CE-82169DDEE42C}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBB7ADFA-C76C-4BD4-864D-F438D2DDCE80} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\QQXX.qqxxatl.1\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\QQXX.qqxxatl regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E58B05EE-6CA5-42E1-A0CE-82169DDEE42C}\ = "qqxxatl Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E58B05EE-6CA5-42E1-A0CE-82169DDEE42C}\InprocServer32\ = "C:\\Windows\\fonts\\myxblbyc.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{334E586E-C2FF-44DB-953D-1C6B988C638F}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{334E586E-C2FF-44DB-953D-1C6B988C638F}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{334E586E-C2FF-44DB-953D-1C6B988C638F}\TypeLib\ = "{FBB7ADFA-C76C-4BD4-864D-F438D2DDCE80}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\QQXX.qqxxatl\CurVer regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBB7ADFA-C76C-4BD4-864D-F438D2DDCE80}\1.0\FLAGS\ = "0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{334E586E-C2FF-44DB-953D-1C6B988C638F}\ = "Iqqxxatl" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{334E586E-C2FF-44DB-953D-1C6B988C638F}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E58B05EE-6CA5-42E1-A0CE-82169DDEE42C}\VersionIndependentProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E58B05EE-6CA5-42E1-A0CE-82169DDEE42C}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E58B05EE-6CA5-42E1-A0CE-82169DDEE42C}\TypeLib\ = "{FBB7ADFA-C76C-4BD4-864D-F438D2DDCE80}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{FBB7ADFA-C76C-4BD4-864D-F438D2DDCE80}\1.0\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{334E586E-C2FF-44DB-953D-1C6B988C638F} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{334E586E-C2FF-44DB-953D-1C6B988C638F}\TypeLib\Version = "1.0" regsvr32.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4300 3332f27ec0c41f89c703df060b9daa88ccbd37c32c008d422c3657881dd3ccb1.exe 4300 3332f27ec0c41f89c703df060b9daa88ccbd37c32c008d422c3657881dd3ccb1.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 4300 3332f27ec0c41f89c703df060b9daa88ccbd37c32c008d422c3657881dd3ccb1.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 4300 3332f27ec0c41f89c703df060b9daa88ccbd37c32c008d422c3657881dd3ccb1.exe 4300 3332f27ec0c41f89c703df060b9daa88ccbd37c32c008d422c3657881dd3ccb1.exe 4300 3332f27ec0c41f89c703df060b9daa88ccbd37c32c008d422c3657881dd3ccb1.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4300 wrote to memory of 1516 4300 3332f27ec0c41f89c703df060b9daa88ccbd37c32c008d422c3657881dd3ccb1.exe 80 PID 4300 wrote to memory of 1516 4300 3332f27ec0c41f89c703df060b9daa88ccbd37c32c008d422c3657881dd3ccb1.exe 80 PID 4300 wrote to memory of 1516 4300 3332f27ec0c41f89c703df060b9daa88ccbd37c32c008d422c3657881dd3ccb1.exe 80 PID 4300 wrote to memory of 4544 4300 3332f27ec0c41f89c703df060b9daa88ccbd37c32c008d422c3657881dd3ccb1.exe 82 PID 4300 wrote to memory of 4544 4300 3332f27ec0c41f89c703df060b9daa88ccbd37c32c008d422c3657881dd3ccb1.exe 82 PID 4300 wrote to memory of 4544 4300 3332f27ec0c41f89c703df060b9daa88ccbd37c32c008d422c3657881dd3ccb1.exe 82
Processes
-
C:\Users\Admin\AppData\Local\Temp\3332f27ec0c41f89c703df060b9daa88ccbd37c32c008d422c3657881dd3ccb1.exe"C:\Users\Admin\AppData\Local\Temp\3332f27ec0c41f89c703df060b9daa88ccbd37c32c008d422c3657881dd3ccb1.exe"1⤵
- Adds autorun key to be loaded by Explorer.exe on startup
- Loads dropped DLL
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4300 -
C:\Windows\SysWOW64\regsvr32.exeregsvr32.exe /s "C:\Windows\fonts\myxblbyc.dll"2⤵
- Loads dropped DLL
- Modifies registry class
PID:1516
-
-
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\3332F2~1.EXE > nul2⤵PID:4544
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
44KB
MD540758e257cba2ec1e8d67c5dc986642b
SHA1f85ff215551d73009ffd2cceb6b9a12dcdf41975
SHA256f654be37402c81a0f4b0442a0e71c7b6b5d37d0ea13132695dc054eac0fb0638
SHA5120c540d9f4073596e6959cd6957041d12c6543e9589c080f7e075999bb15f7feccae22bc8faec4ef0fd4a6eced198ec987e26b6cafc5258c47bea0782514b6996
-
Filesize
44KB
MD540758e257cba2ec1e8d67c5dc986642b
SHA1f85ff215551d73009ffd2cceb6b9a12dcdf41975
SHA256f654be37402c81a0f4b0442a0e71c7b6b5d37d0ea13132695dc054eac0fb0638
SHA5120c540d9f4073596e6959cd6957041d12c6543e9589c080f7e075999bb15f7feccae22bc8faec4ef0fd4a6eced198ec987e26b6cafc5258c47bea0782514b6996
-
Filesize
44KB
MD540758e257cba2ec1e8d67c5dc986642b
SHA1f85ff215551d73009ffd2cceb6b9a12dcdf41975
SHA256f654be37402c81a0f4b0442a0e71c7b6b5d37d0ea13132695dc054eac0fb0638
SHA5120c540d9f4073596e6959cd6957041d12c6543e9589c080f7e075999bb15f7feccae22bc8faec4ef0fd4a6eced198ec987e26b6cafc5258c47bea0782514b6996