b4492b24198d6ddfb5deacc87ddb288fc039d278dae74b416b73fb3ac5ab3a66

Analysis

max time kernel
31s
max time network
33s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
21/11/2022, 13:18

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General

Target

b4492b24198d6ddfb5deacc87ddb288fc039d278dae74b416b73fb3ac5ab3a66.exe
Size

633KB
MD5

133b11fe7f6347644e4bf3185b1366fd
SHA1

bd4107b724bcb9f2a1ae4947d7c4de817eb8adc4
SHA256

b4492b24198d6ddfb5deacc87ddb288fc039d278dae74b416b73fb3ac5ab3a66
SHA512

364bda5b0ba36118cd3277d76f456dcdbe4747f28362353338b666471fd56ac96165f4a50fc0a385d29d3fffe5144824c5f3586cb4a4ae291d7948d5a2dec563
SSDEEP

12288:PA65XwlYgrHy6V17kr8+m73zHqlZhkeGKPqLJ3IaK7r92:BwlBrygOW32Xk+2JNEc

Score

8^/10

upx

Malware Config

Signatures

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1284-55-0x0000000000400000-0x00000000004DB000-memory.dmp	upx

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/1284-55-0x0000000000400000-0x00000000004DB000-memory.dmp	autoit_exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\SogouInput\5.1.1.4880\PinyinUp.exe	b4492b24198d6ddfb5deacc87ddb288fc039d278dae74b416b73fb3ac5ab3a66.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Web\tbw.ico	b4492b24198d6ddfb5deacc87ddb288fc039d278dae74b416b73fb3ac5ab3a66.exe
File opened for modification	C:\Windows\Web\tbw.ico	b4492b24198d6ddfb5deacc87ddb288fc039d278dae74b416b73fb3ac5ab3a66.exe

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

System Information Discovery
T1082

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
1284	b4492b24198d6ddfb5deacc87ddb288fc039d278dae74b416b73fb3ac5ab3a66.exe
1284	b4492b24198d6ddfb5deacc87ddb288fc039d278dae74b416b73fb3ac5ab3a66.exe
1284	b4492b24198d6ddfb5deacc87ddb288fc039d278dae74b416b73fb3ac5ab3a66.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
1284	b4492b24198d6ddfb5deacc87ddb288fc039d278dae74b416b73fb3ac5ab3a66.exe
1284	b4492b24198d6ddfb5deacc87ddb288fc039d278dae74b416b73fb3ac5ab3a66.exe
1284	b4492b24198d6ddfb5deacc87ddb288fc039d278dae74b416b73fb3ac5ab3a66.exe

C:\Users\Admin\AppData\Local\Temp\b4492b24198d6ddfb5deacc87ddb288fc039d278dae74b416b73fb3ac5ab3a66.exe
"C:\Users\Admin\AppData\Local\Temp\b4492b24198d6ddfb5deacc87ddb288fc039d278dae74b416b73fb3ac5ab3a66.exe"
1⤵
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1284

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1284-54-0x0000000075F01000-0x0000000075F03000-memory.dmp

Filesize
8KB

Download
memory/1284-55-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download