Analysis
-
max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
13/03/2024, 09:41
Static task
static1
Behavioral task
behavioral1
Sample
c58c41fb9de90f13223980a5147fdf71.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
c58c41fb9de90f13223980a5147fdf71.exe
Resource
win10v2004-20240226-en
General
-
Target
c58c41fb9de90f13223980a5147fdf71.exe
-
Size
14.5MB
-
MD5
c58c41fb9de90f13223980a5147fdf71
-
SHA1
2e98477e74a0af057086b7161a3fbadb188df450
-
SHA256
f1698aadacb8433276f1e225a8c00f0311d6bb2b721e40e2f88e4fecc3d6cd3e
-
SHA512
f725e97b5bd5729318ab8dedc4a259b53ead052f39e0fbc2d65172a2afde65e1d01a4c0e36ef7f68c14086ef79cae2b973e56cf27952a0700474506097d63f5b
-
SSDEEP
24576:0ATa7/2ggggggggggggggggggggggggggggggggggggggggggggggggggggggggr:0A27
Malware Config
Extracted
tofsee
176.111.174.19
defeatwax.ru
Signatures
-
Creates new service(s) 1 TTPs
-
Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3264 netsh.exe -
Sets service image path in registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\kpempfxh\ImagePath = "C:\\Windows\\SysWOW64\\kpempfxh\\doftbivs.exe" svchost.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation c58c41fb9de90f13223980a5147fdf71.exe -
Deletes itself 1 IoCs
pid Process 4532 svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 3120 doftbivs.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3120 set thread context of 4532 3120 doftbivs.exe 113 -
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 3656 sc.exe 1768 sc.exe 5076 sc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Program crash 2 IoCs
pid pid_target Process procid_target 3172 1116 WerFault.exe 88 2856 3120 WerFault.exe 104 -
Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 1116 wrote to memory of 1432 1116 c58c41fb9de90f13223980a5147fdf71.exe 92 PID 1116 wrote to memory of 1432 1116 c58c41fb9de90f13223980a5147fdf71.exe 92 PID 1116 wrote to memory of 1432 1116 c58c41fb9de90f13223980a5147fdf71.exe 92 PID 1116 wrote to memory of 3116 1116 c58c41fb9de90f13223980a5147fdf71.exe 94 PID 1116 wrote to memory of 3116 1116 c58c41fb9de90f13223980a5147fdf71.exe 94 PID 1116 wrote to memory of 3116 1116 c58c41fb9de90f13223980a5147fdf71.exe 94 PID 1116 wrote to memory of 3656 1116 c58c41fb9de90f13223980a5147fdf71.exe 96 PID 1116 wrote to memory of 3656 1116 c58c41fb9de90f13223980a5147fdf71.exe 96 PID 1116 wrote to memory of 3656 1116 c58c41fb9de90f13223980a5147fdf71.exe 96 PID 1116 wrote to memory of 1768 1116 c58c41fb9de90f13223980a5147fdf71.exe 98 PID 1116 wrote to memory of 1768 1116 c58c41fb9de90f13223980a5147fdf71.exe 98 PID 1116 wrote to memory of 1768 1116 c58c41fb9de90f13223980a5147fdf71.exe 98 PID 1116 wrote to memory of 5076 1116 c58c41fb9de90f13223980a5147fdf71.exe 102 PID 1116 wrote to memory of 5076 1116 c58c41fb9de90f13223980a5147fdf71.exe 102 PID 1116 wrote to memory of 5076 1116 c58c41fb9de90f13223980a5147fdf71.exe 102 PID 1116 wrote to memory of 3264 1116 c58c41fb9de90f13223980a5147fdf71.exe 105 PID 1116 wrote to memory of 3264 1116 c58c41fb9de90f13223980a5147fdf71.exe 105 PID 1116 wrote to memory of 3264 1116 c58c41fb9de90f13223980a5147fdf71.exe 105 PID 3120 wrote to memory of 4532 3120 doftbivs.exe 113 PID 3120 wrote to memory of 4532 3120 doftbivs.exe 113 PID 3120 wrote to memory of 4532 3120 doftbivs.exe 113 PID 3120 wrote to memory of 4532 3120 doftbivs.exe 113 PID 3120 wrote to memory of 4532 3120 doftbivs.exe 113
Processes
-
C:\Users\Admin\AppData\Local\Temp\c58c41fb9de90f13223980a5147fdf71.exe"C:\Users\Admin\AppData\Local\Temp\c58c41fb9de90f13223980a5147fdf71.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1116 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kpempfxh\2⤵PID:1432
-
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\doftbivs.exe" C:\Windows\SysWOW64\kpempfxh\2⤵PID:3116
-
-
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create kpempfxh binPath= "C:\Windows\SysWOW64\kpempfxh\doftbivs.exe /d\"C:\Users\Admin\AppData\Local\Temp\c58c41fb9de90f13223980a5147fdf71.exe\"" type= own start= auto DisplayName= "wifi support"2⤵
- Launches sc.exe
PID:3656
-
-
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description kpempfxh "wifi internet conection"2⤵
- Launches sc.exe
PID:1768
-
-
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start kpempfxh2⤵
- Launches sc.exe
PID:5076
-
-
C:\Windows\SysWOW64\netsh.exe"C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul2⤵
- Modifies Windows Firewall
PID:3264
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 10282⤵
- Program crash
PID:3172
-
-
C:\Windows\SysWOW64\kpempfxh\doftbivs.exeC:\Windows\SysWOW64\kpempfxh\doftbivs.exe /d"C:\Users\Admin\AppData\Local\Temp\c58c41fb9de90f13223980a5147fdf71.exe"1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3120 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Sets service image path in registry
- Deletes itself
PID:4532
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3120 -s 5242⤵
- Program crash
PID:2856
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1116 -ip 11161⤵PID:1100
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 3120 -ip 31201⤵PID:2288
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
13.2MB
MD5ad4de3e5bdd83cedd504f1009e578c1f
SHA18a87a2bb98184280b2b23dd0be99e0c65368e6f2
SHA256bd8a4bc43c392917f3f9707418acb402bd68ad9bf814d62480463472dde16138
SHA512aea5a63870a4b24b973b41fca0e64829c3ffc1368bd678c7b73fa58d752451e639e349d5f644389cd8368eee68e58f5f90d49e6b83c9c802071fc7d23048010d