35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4 | Triage

Analysis

max time kernel
131s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
25-11-2022 19:39

Sharing

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General

Target

35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe
Size

195KB
MD5

5ecd34713fb82f10315c1687e539c82f
SHA1

df88940a3a5c10c7ed75425dea25045ec7853682
SHA256

35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4
SHA512

ec5dba7cbee11ef71c6f8fa00ad844d561eefc14a323f74e32bb9819e66a11ef6f1b828c347196e114720680a46a2c887c0b9f9662a0fe3290716c17c38d90d9
SSDEEP

3072:TpzRNYuluupWyvbOijh7UAoaI52pySvl3nW0CWcscGF8ZHmt4q9Dr7pJ+nBOrHCg:TZRvupm9UX5WflXW5Wc88wGu7jPz

Score

8^/10

evasion trojan upx

Malware Config

Signatures

UPX packed file 4 IoCs

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

Processes:

resource	yara_rule
behavioral2/memory/4972-132-0x0000000010000000-0x000000001004C000-memory.dmp	upx
behavioral2/memory/4972-133-0x0000000010000000-0x000000001004C000-memory.dmp	upx
behavioral2/memory/4972-135-0x0000000010000000-0x000000001004C000-memory.dmp	upx
behavioral2/memory/4972-136-0x0000000010000000-0x000000001004C000-memory.dmp	upx

Checks whether UAC is enabled 1 TTPs 1 IoCs

System Information Discovery

Processes:

35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe

Drops file in System32 directory 2 IoCs

Processes:

35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe

description	ioc	process
File created	C:\Windows\SysWOW64\nsinet.exe	35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe
File opened for modification	C:\Windows\SysWOW64\nsinet.exe	35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe

Drops file in Program Files directory 12 IoCs

Processes:

35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe

description	ioc	process
File created	C:\Program Files (x86)\Instant Access\Multi\20091008051059\medias\button4.gif	35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20091008051059\medias\button3.gif	35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20091008051059\medias\dialer.ico	35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20091008051059\dialerexe.ini	35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20091008051059\instant access.exe	35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe
File created	C:\Program Files (x86)\Instant Access\DesktopIcons\NoCreditCard.lnk	35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20091008051059\medias\button1.gif	35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20091008051059\medias\button2.gif	35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20091008051059\js\js_api_dialer.php	35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe
File created	C:\Program Files (x86)\Instant Access\Center\NoCreditCard.lnk	35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe
File opened for modification	C:\Program Files (x86)\Instant Access\Center\NoCreditCard.lnk	35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe
File created	C:\Program Files (x86)\Instant Access\Multi\20091008051059\Common\module.php	35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe

Drops file in Windows directory 3 IoCs

Processes:

35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe

description	ioc	process
File created	C:\Windows\dialexe.zl	35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe
File created	C:\Windows\dialexe.epk	35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe
File created	C:\Windows\dialerexe.ini	35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe

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

System Information Discovery
T1082

Modifies registry class 3 IoCs

Processes:

35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF1C8E21-4045-4D67-B528-335F1A4F0DE9}	35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF1C8E21-4045-4D67-B528-335F1A4F0DE9}\LocalServer32	35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{DF1C8E21-4045-4D67-B528-335F1A4F0DE9}\LocalServer32\ = "C:\\Windows\\SysWow64\\nsinet.exe /run"	35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe

pid	process
4972	35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe
4972	35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe

C:\Users\Admin\AppData\Local\Temp\35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe
"C:\Users\Admin\AppData\Local\Temp\35be85a7d5c84497bfca923e5ed252fa7d8b66b785e03c2e16a6d4a44c5054e4.exe"
1⤵
- Checks whether UAC is enabled
- Drops file in System32 directory
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:4972

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p -s TapiSrv
1⤵
PID:1192

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4972-132-0x0000000010000000-0x000000001004C000-memory.dmp

Filesize
304KB

Download
memory/4972-133-0x0000000010000000-0x000000001004C000-memory.dmp

Filesize
304KB

Download
memory/4972-134-0x0000000000400000-0x0000000000443908-memory.dmp

Filesize
270KB

Download
memory/4972-135-0x0000000010000000-0x000000001004C000-memory.dmp

Filesize
304KB

Download
memory/4972-136-0x0000000010000000-0x000000001004C000-memory.dmp

Filesize
304KB

Download