Analysis
-
max time kernel
141s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
01-06-2024 03:45
Static task
static1
Behavioral task
behavioral1
Sample
d6077160070968e0b35f9bd91cf42f3c76df11003923b9446d8b87d2131eb84e.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
d6077160070968e0b35f9bd91cf42f3c76df11003923b9446d8b87d2131eb84e.exe
Resource
win10v2004-20240426-en
General
-
Target
d6077160070968e0b35f9bd91cf42f3c76df11003923b9446d8b87d2131eb84e.exe
-
Size
72KB
-
MD5
736e2ec3d18bc6f091002833f34e81c9
-
SHA1
642a70fd2b90515c729874154b90d0c21eab9488
-
SHA256
d6077160070968e0b35f9bd91cf42f3c76df11003923b9446d8b87d2131eb84e
-
SHA512
527ec6431b8dabbdaa2f3f87340722f897d28db230bbb7ba74493cdbb91e26dbdcf33d2e29116676d5ddca41365c99cc3381ad172950d1601889f1f70c8ed29e
-
SSDEEP
768:TrItKyw5WHXfQmjIiIk9ecAa0Mb96SyX1DLdRXXXk:Tr3Z5IfQmv81ar1yXtZC
Malware Config
Signatures
-
Detects Windows executables referencing non-Windows User-Agents 1 IoCs
resource yara_rule behavioral1/files/0x000c00000001227e-2.dat INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA -
Sets file to hidden 1 TTPs 1 IoCs
Modifies file attributes to stop it showing in Explorer etc.
pid Process 2408 attrib.exe -
Deletes itself 1 IoCs
pid Process 2372 cmd.exe -
Executes dropped EXE 1 IoCs
pid Process 1864 zskhost.exe -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\Debug\zskhost.exe d6077160070968e0b35f9bd91cf42f3c76df11003923b9446d8b87d2131eb84e.exe File opened for modification C:\Windows\Debug\zskhost.exe d6077160070968e0b35f9bd91cf42f3c76df11003923b9446d8b87d2131eb84e.exe File opened for modification C:\Windows\Debug\zskhost.exe attrib.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 2220 d6077160070968e0b35f9bd91cf42f3c76df11003923b9446d8b87d2131eb84e.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2220 wrote to memory of 2408 2220 d6077160070968e0b35f9bd91cf42f3c76df11003923b9446d8b87d2131eb84e.exe 28 PID 2220 wrote to memory of 2408 2220 d6077160070968e0b35f9bd91cf42f3c76df11003923b9446d8b87d2131eb84e.exe 28 PID 2220 wrote to memory of 2408 2220 d6077160070968e0b35f9bd91cf42f3c76df11003923b9446d8b87d2131eb84e.exe 28 PID 2220 wrote to memory of 2408 2220 d6077160070968e0b35f9bd91cf42f3c76df11003923b9446d8b87d2131eb84e.exe 28 PID 2220 wrote to memory of 2372 2220 d6077160070968e0b35f9bd91cf42f3c76df11003923b9446d8b87d2131eb84e.exe 31 PID 2220 wrote to memory of 2372 2220 d6077160070968e0b35f9bd91cf42f3c76df11003923b9446d8b87d2131eb84e.exe 31 PID 2220 wrote to memory of 2372 2220 d6077160070968e0b35f9bd91cf42f3c76df11003923b9446d8b87d2131eb84e.exe 31 PID 2220 wrote to memory of 2372 2220 d6077160070968e0b35f9bd91cf42f3c76df11003923b9446d8b87d2131eb84e.exe 31 -
Views/modifies file attributes 1 TTPs 1 IoCs
pid Process 2408 attrib.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\d6077160070968e0b35f9bd91cf42f3c76df11003923b9446d8b87d2131eb84e.exe"C:\Users\Admin\AppData\Local\Temp\d6077160070968e0b35f9bd91cf42f3c76df11003923b9446d8b87d2131eb84e.exe"1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2220 -
C:\Windows\SysWOW64\attrib.exeattrib +a +s +h +r C:\Windows\Debug\zskhost.exe2⤵
- Sets file to hidden
- Drops file in Windows directory
- Views/modifies file attributes
PID:2408
-
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\D60771~1.EXE > nul2⤵
- Deletes itself
PID:2372
-
-
C:\Windows\Debug\zskhost.exeC:\Windows\Debug\zskhost.exe1⤵
- Executes dropped EXE
PID:1864
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
72KB
MD566d625fd9cc1b04f67b23a687c810c9a
SHA11ead9491d97c314873f73309bbdd4d3f51b2efdd
SHA25667a92b8b72836db1cd67cb80a339723742b867e4de3933ec9d875284f185b7df
SHA5129fb77b2ff6981f543321d158e2a826b6ba13307e1335c19f9a5512b713398e2bf8fc3756560b28b343ea0d2c6128d70606a7bdf8d1e51e7556dc6e8f2fbe3b2a