dbf5ee189f70c780641ecc0d50ec41adb2f3eb718b3dd6e0f611cc8fb96e29d5

Analysis

max time kernel
95s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
04/10/2024, 09:53

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General

Target

test.exe
Size

121KB
MD5

e59f731d9d2e14c582aa15db91dd8259
SHA1

a5775aaa66e17fdd078926069b6da8e1f80618f6
SHA256

dbf5ee189f70c780641ecc0d50ec41adb2f3eb718b3dd6e0f611cc8fb96e29d5
SHA512

6a842ffc1c6340569c94d44f69841c244314dfb6f384cb64670b260699270fda5484ccb89127c001729bc33d292c959b2833befa0cd8f9146b17ce03c1bb61d6
SSDEEP

3072:dVt8iWvAOF45MRZaptxWi9xAqJ9gSvEvDaAlGR6kX+E:dX8iWvAGRZadWi9bgSvKD1Q6m+

Score

10^/10

discovery persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe C:\\Windows\\system32\\vxdmgr32.exe"	test.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\rundllw.exe	test.exe

Loads dropped DLL 1 IoCs

pid	Process
2904	test.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\load32 = "C:\\Windows\\system32\\load32.exe"	test.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\load32.exe	test.exe
File created	C:\Windows\SysWOW64\vxdmgr32.exe	test.exe
File created	C:\Windows\SysWOW64\load32.exe	test.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2904-0-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral2/memory/2904-10-0x0000000000400000-0x000000000044E000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\dllreg.exe	test.exe
File created	C:\Windows\sock64.dll	test.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2176	2904	WerFault.exe	81

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	test.exe

C:\Users\Admin\AppData\Local\Temp\test.exe
"C:\Users\Admin\AppData\Local\Temp\test.exe"
1⤵
- Modifies WinLogon for persistence
- Drops startup file
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2904
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2904 -s 620
  2⤵
  - Program crash
  PID:2176

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2904 -ip 2904
1⤵
PID:4496

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\sock64.dll

Filesize
30KB

MD5
39c0f2c6554f7084ed2041c611f4dcd1

SHA1
1f478b17868be98e257a83b66d6d18b50fabc124

SHA256
b8f29db0d8571fc23dbdc8116eeaebdc51c8f654e73ff82ae52e76e620cd294a

SHA512
c76d7445d743e540aac19f5985450c6f8f67ffd7981a6324c0e4f7c4dfcd1b7aac4845ff327894a06cd6b910d31c490397860cf7cb8e96565e330f1bbad02ff6

Download Submit
memory/2904-0-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2904-8-0x0000000010000000-0x0000000010011000-memory.dmp

Filesize
68KB

Download
memory/2904-10-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2904-11-0x0000000010000000-0x0000000010011000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads