cf83c532630832887a5d0ee2f7701ae9157f318af685c6e816b2576384d97b42

Analysis

max time kernel
158s
max time network
167s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
27-11-2022 10:18

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General

Target

cf83c532630832887a5d0ee2f7701ae9157f318af685c6e816b2576384d97b42.exe
Size

37KB
MD5

0c3d68a6953b0b8d495e66ce38e746a0
SHA1

c69a3566a45370c4dff668e50cb37c71882663dd
SHA256

cf83c532630832887a5d0ee2f7701ae9157f318af685c6e816b2576384d97b42
SHA512

c004ce20b848fa5d215d634c204bd9537833cf2855662b0c905f2c9eff6e19398777459ae7feb80bbb9da2b1c65300cf0c8d588f22d65f72648e43320cf252a0
SSDEEP

768:z2A3l1G/Z/EFQNkX3mLd4mwPEhNzg3IhZ6vdgXiH9zKYcXgYyGqdXw:z2AV1GBsmNkMOPEjhhoHzcXundX

Score

10^/10

evasion persistence trojan

Malware Config

Signatures

UAC bypass 3 TTPs 3 IoCs

evasion trojan

Bypass User Account Control

T1088

Disabling Security Tools

T1089

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	cf83c532630832887a5d0ee2f7701ae9157f318af685c6e816b2576384d97b42.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	cf83c532630832887a5d0ee2f7701ae9157f318af685c6e816b2576384d97b42.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	cf83c532630832887a5d0ee2f7701ae9157f318af685c6e816b2576384d97b42.exe

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

Loads dropped DLL 1 IoCs

pid	Process
4280	cf83c532630832887a5d0ee2f7701ae9157f318af685c6e816b2576384d97b42.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	cf83c532630832887a5d0ee2f7701ae9157f318af685c6e816b2576384d97b42.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\WinSocketA.dll	cf83c532630832887a5d0ee2f7701ae9157f318af685c6e816b2576384d97b42.exe
File opened for modification	C:\Windows\SysWOW64\WinSocketA.dll	cf83c532630832887a5d0ee2f7701ae9157f318af685c6e816b2576384d97b42.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4280	cf83c532630832887a5d0ee2f7701ae9157f318af685c6e816b2576384d97b42.exe
4280	cf83c532630832887a5d0ee2f7701ae9157f318af685c6e816b2576384d97b42.exe
4280	cf83c532630832887a5d0ee2f7701ae9157f318af685c6e816b2576384d97b42.exe
4280	cf83c532630832887a5d0ee2f7701ae9157f318af685c6e816b2576384d97b42.exe

Suspicious behavior: LoadsDriver 2 IoCs

pid	Process
4280	cf83c532630832887a5d0ee2f7701ae9157f318af685c6e816b2576384d97b42.exe
668	Process not Found

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeLoadDriverPrivilege	4280	cf83c532630832887a5d0ee2f7701ae9157f318af685c6e816b2576384d97b42.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4280 wrote to memory of 4720	4280	cf83c532630832887a5d0ee2f7701ae9157f318af685c6e816b2576384d97b42.exe	79
PID 4280 wrote to memory of 4720	4280	cf83c532630832887a5d0ee2f7701ae9157f318af685c6e816b2576384d97b42.exe	79
PID 4280 wrote to memory of 4720	4280	cf83c532630832887a5d0ee2f7701ae9157f318af685c6e816b2576384d97b42.exe	79

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	cf83c532630832887a5d0ee2f7701ae9157f318af685c6e816b2576384d97b42.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	cf83c532630832887a5d0ee2f7701ae9157f318af685c6e816b2576384d97b42.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	cf83c532630832887a5d0ee2f7701ae9157f318af685c6e816b2576384d97b42.exe

C:\Users\Admin\AppData\Local\Temp\cf83c532630832887a5d0ee2f7701ae9157f318af685c6e816b2576384d97b42.exe
"C:\Users\Admin\AppData\Local\Temp\cf83c532630832887a5d0ee2f7701ae9157f318af685c6e816b2576384d97b42.exe"
1⤵
- UAC bypass
- Loads dropped DLL
- Checks whether UAC is enabled
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:4280
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c del "C:\Users\Admin\AppData\Local\Temp\cf83c532630832887a5d0ee2f7701ae9157f318af685c6e816b2576384d97b42.exe"
  2⤵
  PID:4720

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Bypass User Account Control

T1088

Defense Evasion

Bypass User Account Control

T1088

Disabling Security Tools

T1089

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\WinSocketA.dll

Filesize
71KB

MD5
5beca6a5e37601fc333ba66bcfa9bca1

SHA1
6b6d0dd3039c575bda2b42d692fa5356ce7b4efc

SHA256
3bfd111a796f6605c4b79326f227a06c432ddd44d720d2645536b96b332024d8

SHA512
5576f1ec86e0d0127637310d509602fa56ba7a90b68f4120c62385b2472da1169e976a96793b604dd93520421406d6141f69685ad8bc8b84793c4c3414fedf78

Download Submit
memory/4280-133-0x0000000000400000-0x0000000000425200-memory.dmp

Filesize
148KB

Download
memory/4280-134-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download