8e1316894e392d5cbbc93fa7d667692fb93bcf52f37615427cbeb2ddbf55b695

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
30-11-2022 18:19

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General

Target

8e1316894e392d5cbbc93fa7d667692fb93bcf52f37615427cbeb2ddbf55b695.exe
Size

134KB
MD5

47bbc6f181589b91fd9a9623ec733ec0
SHA1

98d1104388564b7ff78c458ce929016d7ac8237b
SHA256

8e1316894e392d5cbbc93fa7d667692fb93bcf52f37615427cbeb2ddbf55b695
SHA512

ebfe759921ce1774c4d4384a07fdd1995911fcbf9f41aad6b217e17ec74f78db8b2c64a045cabdae3d148ff72c8cfc42c204e2ebb841c993f47ccfaf3fa19392
SSDEEP

3072:aLt4uylSM0zijiK6Y4wQ1oP3i9AFPe3Z4amXYbts:q4uylSkjiKV4w9P3i9AsJXI

Score

5^/10

Malware Config

Signatures

Drops file in System32 directory 4 IoCs

Processes:

guidssource.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	guidssource.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	guidssource.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	guidssource.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	guidssource.exe

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

System Information Discovery
T1082

Modifies data under HKEY_USERS 3 IoCs

Processes:

guidssource.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	guidssource.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	guidssource.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	guidssource.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

guidssource.exe

pid	process
2968	guidssource.exe
2968	guidssource.exe
2968	guidssource.exe
2968	guidssource.exe
2968	guidssource.exe
2968	guidssource.exe
2968	guidssource.exe
2968	guidssource.exe
2968	guidssource.exe
2968	guidssource.exe
2968	guidssource.exe
2968	guidssource.exe

Suspicious behavior: RenamesItself 1 IoCs

Processes:

8e1316894e392d5cbbc93fa7d667692fb93bcf52f37615427cbeb2ddbf55b695.exe

pid process

3628 8e1316894e392d5cbbc93fa7d667692fb93bcf52f37615427cbeb2ddbf55b695.exe

pid	process
3628	8e1316894e392d5cbbc93fa7d667692fb93bcf52f37615427cbeb2ddbf55b695.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

8e1316894e392d5cbbc93fa7d667692fb93bcf52f37615427cbeb2ddbf55b695.exeguidssource.exe

description	pid	process	target process
PID 3228 wrote to memory of 3628	3228	8e1316894e392d5cbbc93fa7d667692fb93bcf52f37615427cbeb2ddbf55b695.exe	8e1316894e392d5cbbc93fa7d667692fb93bcf52f37615427cbeb2ddbf55b695.exe
PID 3228 wrote to memory of 3628	3228	8e1316894e392d5cbbc93fa7d667692fb93bcf52f37615427cbeb2ddbf55b695.exe	8e1316894e392d5cbbc93fa7d667692fb93bcf52f37615427cbeb2ddbf55b695.exe
PID 3228 wrote to memory of 3628	3228	8e1316894e392d5cbbc93fa7d667692fb93bcf52f37615427cbeb2ddbf55b695.exe	8e1316894e392d5cbbc93fa7d667692fb93bcf52f37615427cbeb2ddbf55b695.exe
PID 3468 wrote to memory of 2968	3468	guidssource.exe	guidssource.exe
PID 3468 wrote to memory of 2968	3468	guidssource.exe	guidssource.exe
PID 3468 wrote to memory of 2968	3468	guidssource.exe	guidssource.exe

C:\Users\Admin\AppData\Local\Temp\8e1316894e392d5cbbc93fa7d667692fb93bcf52f37615427cbeb2ddbf55b695.exe
"C:\Users\Admin\AppData\Local\Temp\8e1316894e392d5cbbc93fa7d667692fb93bcf52f37615427cbeb2ddbf55b695.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3228

C:\Users\Admin\AppData\Local\Temp\8e1316894e392d5cbbc93fa7d667692fb93bcf52f37615427cbeb2ddbf55b695.exe
--abd2a860
2⤵
- Suspicious behavior: RenamesItself
PID:3628

C:\Windows\SysWOW64\guidssource.exe
"C:\Windows\SysWOW64\guidssource.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3468

C:\Windows\SysWOW64\guidssource.exe
--1363369b
2⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
PID:2968

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/2968-137-0x0000000000000000-mapping.dmp

Download
memory/2968-139-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2968-140-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3228-132-0x0000000000570000-0x000000000058B000-memory.dmp

Filesize
108KB

Download
memory/3228-134-0x0000000000570000-0x000000000058B000-memory.dmp

Filesize
108KB

Download
memory/3228-135-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/3628-133-0x0000000000000000-mapping.dmp

Download
memory/3628-136-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3628-138-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download