5a3ffc6a89772bf529cd4dd8df0ac340db29974f000120ccfab2b2ae267abbb3

Analysis

max time kernel
146s
max time network
150s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
27-11-2022 12:32

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General

Target

5a3ffc6a89772bf529cd4dd8df0ac340db29974f000120ccfab2b2ae267abbb3.exe
Size

122KB
MD5

9af7d469610185bfa0d6b4e420339f4e
SHA1

1c51549da0de81a4bca01859323ce8c6d84d5c15
SHA256

5a3ffc6a89772bf529cd4dd8df0ac340db29974f000120ccfab2b2ae267abbb3
SHA512

b499d355ccb783213936a62b19a060a28dc141ddd5b5c0875837b7d13551990fb3368204d518f25834f3305aac7f5673d9cee4bba760853298eb490b155fabaf
SSDEEP

3072:bnDHH47khTSHz4dwqKdM6i4JGpZh37uLjudqz9d0kj:bDn440zt46i4EruLorkj

Score

8^/10

persistence vmprotect

Malware Config

Signatures

Sets DLL path for service in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

5a3ffc6a89772bf529cd4dd8df0ac340db29974f000120ccfab2b2ae267abbb3.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\IPv6NetBrowsSvc\Parameters\ServiceDll = "C:\\Windows\\IPv6NetBrowsSvc.dll"	5a3ffc6a89772bf529cd4dd8df0ac340db29974f000120ccfab2b2ae267abbb3.exe

VMProtect packed file 4 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

Processes:

resource	yara_rule
\??\c:\windows\ipv6netbrowssvc.dll	vmprotect
behavioral1/memory/832-59-0x0000000000E30000-0x0000000000E6E000-memory.dmp	vmprotect
behavioral1/memory/1240-61-0x00000000755E0000-0x000000007561E000-memory.dmp	vmprotect
behavioral1/memory/1240-62-0x00000000755E0000-0x000000007561E000-memory.dmp	vmprotect

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1976 cmd.exe

pid	process
1976	cmd.exe

Drops file in Windows directory 2 IoCs

Processes:

5a3ffc6a89772bf529cd4dd8df0ac340db29974f000120ccfab2b2ae267abbb3.exe

description	ioc	process
File created	C:\Windows\IPv6NetBrowsSvc.dll	5a3ffc6a89772bf529cd4dd8df0ac340db29974f000120ccfab2b2ae267abbb3.exe
File opened for modification	C:\Windows\IPv6NetBrowsSvc.dll	5a3ffc6a89772bf529cd4dd8df0ac340db29974f000120ccfab2b2ae267abbb3.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 WriteProcessMemory 4 IoCs

Processes:

5a3ffc6a89772bf529cd4dd8df0ac340db29974f000120ccfab2b2ae267abbb3.exe

description	pid	process	target process
PID 832 wrote to memory of 1976	832	5a3ffc6a89772bf529cd4dd8df0ac340db29974f000120ccfab2b2ae267abbb3.exe	cmd.exe
PID 832 wrote to memory of 1976	832	5a3ffc6a89772bf529cd4dd8df0ac340db29974f000120ccfab2b2ae267abbb3.exe	cmd.exe
PID 832 wrote to memory of 1976	832	5a3ffc6a89772bf529cd4dd8df0ac340db29974f000120ccfab2b2ae267abbb3.exe	cmd.exe
PID 832 wrote to memory of 1976	832	5a3ffc6a89772bf529cd4dd8df0ac340db29974f000120ccfab2b2ae267abbb3.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\5a3ffc6a89772bf529cd4dd8df0ac340db29974f000120ccfab2b2ae267abbb3.exe
"C:\Users\Admin\AppData\Local\Temp\5a3ffc6a89772bf529cd4dd8df0ac340db29974f000120ccfab2b2ae267abbb3.exe"
1⤵
- Sets DLL path for service in the registry
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:832

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\7075066.bat" "
2⤵
- Deletes itself
PID:1976

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k ipv6srvs
1⤵
PID:1240

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

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

C:\Users\Admin\AppData\Local\Temp\7075066.bat
Filesize
239B

MD5
e79295a8ba3543bf6d83f719f04cecf5

SHA1
6d8b90be415574cf4595c85b37f893a7f3db43e7

SHA256
a607d3b4eba492ee3b5ffe3aac905cbd630d941c030fb708564e1785c6b245b3

SHA512
0031bd4e5f2406fbe4b40bfd1ed02f4dd6fe2e5399e518e522fc5e6259bd66103895cd85fac57c365aa78dde1b702f172f99d4e5494134c59193a821af0008a4

Download Submit
\??\c:\windows\ipv6netbrowssvc.dll
Filesize
122KB

MD5
f5c0cd8596067d010931807fe58b12b2

SHA1
41b1683201e8d2b8d75f373f70dfbe8da9a23c5d

SHA256
dad6637987c41070b47175704fc4994f25bae0d6e7614dbc032ffc08d2eb5725

SHA512
d824978060bfdadd7feb95b81d033599efadd034283d5cb464afeb546292043323d003ef51ad50910444e80988e9911b3a2eb8dacb2e9b007a1555d5a7c688c4

Download Submit
memory/832-54-0x0000000000E31000-0x0000000000E34000-memory.dmp

Filesize
12KB

Download
memory/832-56-0x0000000076BA1000-0x0000000076BA3000-memory.dmp

Filesize
8KB

Download
memory/832-59-0x0000000000E30000-0x0000000000E6E000-memory.dmp

Filesize
248KB

Download
memory/1240-57-0x00000000755E1000-0x00000000755E4000-memory.dmp

Filesize
12KB

Download
memory/1240-61-0x00000000755E0000-0x000000007561E000-memory.dmp

Filesize
248KB

Download
memory/1240-62-0x00000000755E0000-0x000000007561E000-memory.dmp

Filesize
248KB

Download
memory/1976-58-0x0000000000000000-mapping.dmp

Download