4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce

Analysis

max time kernel
82s
max time network
100s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
25-11-2022 19:33

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General

Target

4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe
Size

208KB
MD5

a24f2fe2cacb342a641056898e5966d0
SHA1

764d4b31a2c0f7ea7075534356a3ee0163e1871b
SHA256

4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce
SHA512

b9de43a39cee3c83090f4c821b7fcfee22a8f5cdefb43e072d679cfdadb8bc1f6315e3cc2a3a712dd223c4a86f50b28127e728c654c040da959e66bb0ff6dab4
SSDEEP

1536:Vfuxw10lxJM5y8w5OZRVmgyDl+cWaxJcveQZNTRSb3EBAR1AlQPsxjheYhpXN5yh:f0OtF2Qo7VsJgisxlYegEX0ZZbW

Score

8^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 3 IoCs

Processes:

svhust.exesvhust.exesvhust.exe

pid process

1156 svhust.exe
1800 svhust.exe
1992 svhust.exe

pid	process
1156	svhust.exe
1800	svhust.exe
1992	svhust.exe

UPX packed file 14 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1068-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1068-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1068-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1068-65-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1068-66-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1068-69-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1992-94-0x0000000000400000-0x0000000000479000-memory.dmp	upx
behavioral1/memory/1992-98-0x0000000000400000-0x0000000000479000-memory.dmp	upx
behavioral1/memory/1992-99-0x0000000000400000-0x0000000000479000-memory.dmp	upx
behavioral1/memory/1068-105-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1992-107-0x0000000000400000-0x0000000000479000-memory.dmp	upx
behavioral1/memory/1992-108-0x0000000000400000-0x0000000000479000-memory.dmp	upx
behavioral1/memory/1992-110-0x0000000000400000-0x0000000000479000-memory.dmp	upx
behavioral1/memory/1800-111-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Loads dropped DLL 4 IoCs

Processes:

4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe

pid	process
1068	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe
1068	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe
1068	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe
1068	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

reg.exesvhust.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\svhust = "C:\\Users\\Admin\\AppData\\Roaming\\svhust\\svhust.exe"	reg.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	svhust.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VideoDriver = "C:\\Windows\\system32\\winldr.exe"	svhust.exe

Drops file in System32 directory 2 IoCs

Processes:

svhust.exe

description ioc process

File created C:\Windows\System32\winldr.exe svhust.exe
File opened for modification C:\Windows\SysWOW64\winldr.exe svhust.exe

description	ioc	process
File created	C:\Windows\System32\winldr.exe	svhust.exe
File opened for modification	C:\Windows\SysWOW64\winldr.exe	svhust.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exesvhust.exe

description	pid	process	target process
PID 976 set thread context of 1068	976	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe
PID 1156 set thread context of 1800	1156	svhust.exe	svhust.exe
PID 1156 set thread context of 1992	1156	svhust.exe	svhust.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 1 IoCs

Processes:

svhust.exe

pid process

1992 svhust.exe

pid	process
1992	svhust.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exesvhust.exesvhust.exe

pid	process
976	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe
1068	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe
1156	svhust.exe
1800	svhust.exe

Suspicious use of WriteProcessMemory 36 IoCs

Processes:

4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.execmd.exesvhust.exe

description	pid	process	target process
PID 976 wrote to memory of 1068	976	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe
PID 976 wrote to memory of 1068	976	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe
PID 976 wrote to memory of 1068	976	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe
PID 976 wrote to memory of 1068	976	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe
PID 976 wrote to memory of 1068	976	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe
PID 976 wrote to memory of 1068	976	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe
PID 976 wrote to memory of 1068	976	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe
PID 976 wrote to memory of 1068	976	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe
PID 1068 wrote to memory of 1876	1068	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe	cmd.exe
PID 1068 wrote to memory of 1876	1068	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe	cmd.exe
PID 1068 wrote to memory of 1876	1068	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe	cmd.exe
PID 1068 wrote to memory of 1876	1068	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe	cmd.exe
PID 1876 wrote to memory of 512	1876	cmd.exe	reg.exe
PID 1876 wrote to memory of 512	1876	cmd.exe	reg.exe
PID 1876 wrote to memory of 512	1876	cmd.exe	reg.exe
PID 1876 wrote to memory of 512	1876	cmd.exe	reg.exe
PID 1068 wrote to memory of 1156	1068	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe	svhust.exe
PID 1068 wrote to memory of 1156	1068	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe	svhust.exe
PID 1068 wrote to memory of 1156	1068	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe	svhust.exe
PID 1068 wrote to memory of 1156	1068	4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe	svhust.exe
PID 1156 wrote to memory of 1800	1156	svhust.exe	svhust.exe
PID 1156 wrote to memory of 1800	1156	svhust.exe	svhust.exe
PID 1156 wrote to memory of 1800	1156	svhust.exe	svhust.exe
PID 1156 wrote to memory of 1800	1156	svhust.exe	svhust.exe
PID 1156 wrote to memory of 1800	1156	svhust.exe	svhust.exe
PID 1156 wrote to memory of 1800	1156	svhust.exe	svhust.exe
PID 1156 wrote to memory of 1800	1156	svhust.exe	svhust.exe
PID 1156 wrote to memory of 1800	1156	svhust.exe	svhust.exe
PID 1156 wrote to memory of 1992	1156	svhust.exe	svhust.exe
PID 1156 wrote to memory of 1992	1156	svhust.exe	svhust.exe
PID 1156 wrote to memory of 1992	1156	svhust.exe	svhust.exe
PID 1156 wrote to memory of 1992	1156	svhust.exe	svhust.exe
PID 1156 wrote to memory of 1992	1156	svhust.exe	svhust.exe
PID 1156 wrote to memory of 1992	1156	svhust.exe	svhust.exe
PID 1156 wrote to memory of 1992	1156	svhust.exe	svhust.exe
PID 1156 wrote to memory of 1992	1156	svhust.exe	svhust.exe

C:\Users\Admin\AppData\Local\Temp\4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe
"C:\Users\Admin\AppData\Local\Temp\4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:976

C:\Users\Admin\AppData\Local\Temp\4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe
"C:\Users\Admin\AppData\Local\Temp\4a64e5213a53734c0eac02e4335729c473c77a983d1ff5cc718dedb380c6e6ce.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1068

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\GYXTV.bat" "
3⤵
- Suspicious use of WriteProcessMemory
PID:1876

C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "svhust" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\svhust\svhust.exe" /f
4⤵
- Adds Run key to start application
PID:512

C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
"C:\Users\Admin\AppData\Roaming\svhust\svhust.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1156

C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
"C:\Users\Admin\AppData\Roaming\svhust\svhust.exe"
4⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:1800

C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
"C:\Users\Admin\AppData\Roaming\svhust\svhust.exe"
4⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of FindShellTrayWindow
PID:1992

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\GYXTV.bat
Filesize
141B

MD5
e83a2e0b3c1e03dfb96ffd9924117a45

SHA1
27a3e4ba115ba1bad0bf094f5b97e768d1ece33e

SHA256
655407d94fff9e707712a588d97a2017cc1c9d690a67c688ed0abcb79e452b13

SHA512
5f61686a3b7db3544d83a4f2ce1a75868c7dc266709f72a34eafecc3a26696a985b1912a559aed8f5a2cacbfe26be9beae2374340d1801bb18473de785557480

Download Submit
C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
Filesize
208KB

MD5
e8a6f42cee37f9407d32830f29f8172b

SHA1
b95b5a06d49224900c304e588ab374c65e822adb

SHA256
7e378f5c31e7ef3a7c75b15a24b0e8ed28255e9f4dff61db585bf1151f0d87aa

SHA512
b25f7ceb1213c2046b97a50bb8328a6abfe8c9c30aa79cd395d93a6c8a011a0711796ba208b304cab3af420a196cff9693a1ebbb6f4dae2e6bc0677fa07b79d9

Download Submit
C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
Filesize
208KB

MD5
e8a6f42cee37f9407d32830f29f8172b

SHA1
b95b5a06d49224900c304e588ab374c65e822adb

SHA256
7e378f5c31e7ef3a7c75b15a24b0e8ed28255e9f4dff61db585bf1151f0d87aa

SHA512
b25f7ceb1213c2046b97a50bb8328a6abfe8c9c30aa79cd395d93a6c8a011a0711796ba208b304cab3af420a196cff9693a1ebbb6f4dae2e6bc0677fa07b79d9

Download Submit
C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
Filesize
208KB

MD5
e8a6f42cee37f9407d32830f29f8172b

SHA1
b95b5a06d49224900c304e588ab374c65e822adb

SHA256
7e378f5c31e7ef3a7c75b15a24b0e8ed28255e9f4dff61db585bf1151f0d87aa

SHA512
b25f7ceb1213c2046b97a50bb8328a6abfe8c9c30aa79cd395d93a6c8a011a0711796ba208b304cab3af420a196cff9693a1ebbb6f4dae2e6bc0677fa07b79d9

Download Submit
C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
Filesize
208KB

MD5
e8a6f42cee37f9407d32830f29f8172b

SHA1
b95b5a06d49224900c304e588ab374c65e822adb

SHA256
7e378f5c31e7ef3a7c75b15a24b0e8ed28255e9f4dff61db585bf1151f0d87aa

SHA512
b25f7ceb1213c2046b97a50bb8328a6abfe8c9c30aa79cd395d93a6c8a011a0711796ba208b304cab3af420a196cff9693a1ebbb6f4dae2e6bc0677fa07b79d9

Download Submit
\Users\Admin\AppData\Roaming\svhust\svhust.exe
Filesize
208KB

MD5
e8a6f42cee37f9407d32830f29f8172b

SHA1
b95b5a06d49224900c304e588ab374c65e822adb

SHA256
7e378f5c31e7ef3a7c75b15a24b0e8ed28255e9f4dff61db585bf1151f0d87aa

SHA512
b25f7ceb1213c2046b97a50bb8328a6abfe8c9c30aa79cd395d93a6c8a011a0711796ba208b304cab3af420a196cff9693a1ebbb6f4dae2e6bc0677fa07b79d9

Download Submit
\Users\Admin\AppData\Roaming\svhust\svhust.exe
Filesize
208KB

MD5
e8a6f42cee37f9407d32830f29f8172b

SHA1
b95b5a06d49224900c304e588ab374c65e822adb

SHA256
7e378f5c31e7ef3a7c75b15a24b0e8ed28255e9f4dff61db585bf1151f0d87aa

SHA512
b25f7ceb1213c2046b97a50bb8328a6abfe8c9c30aa79cd395d93a6c8a011a0711796ba208b304cab3af420a196cff9693a1ebbb6f4dae2e6bc0677fa07b79d9

Download Submit
\Users\Admin\AppData\Roaming\svhust\svhust.exe
Filesize
208KB

MD5
e8a6f42cee37f9407d32830f29f8172b

SHA1
b95b5a06d49224900c304e588ab374c65e822adb

SHA256
7e378f5c31e7ef3a7c75b15a24b0e8ed28255e9f4dff61db585bf1151f0d87aa

SHA512
b25f7ceb1213c2046b97a50bb8328a6abfe8c9c30aa79cd395d93a6c8a011a0711796ba208b304cab3af420a196cff9693a1ebbb6f4dae2e6bc0677fa07b79d9

Download Submit
\Users\Admin\AppData\Roaming\svhust\svhust.exe
Filesize
208KB

MD5
e8a6f42cee37f9407d32830f29f8172b

SHA1
b95b5a06d49224900c304e588ab374c65e822adb

SHA256
7e378f5c31e7ef3a7c75b15a24b0e8ed28255e9f4dff61db585bf1151f0d87aa

SHA512
b25f7ceb1213c2046b97a50bb8328a6abfe8c9c30aa79cd395d93a6c8a011a0711796ba208b304cab3af420a196cff9693a1ebbb6f4dae2e6bc0677fa07b79d9

Download Submit
memory/512-73-0x0000000000000000-mapping.dmp

Download
memory/976-56-0x000000000051D000-0x0000000000533000-memory.dmp

Filesize
88KB

Download
memory/1068-69-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1068-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1068-70-0x0000000075761000-0x0000000075763000-memory.dmp

Filesize
8KB

Download
memory/1068-66-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1068-65-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1068-63-0x00000000004085D0-mapping.dmp

Download
memory/1068-105-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1068-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1068-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1068-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1156-78-0x0000000000000000-mapping.dmp

Download
memory/1156-82-0x00000000005DD000-0x00000000005F2000-memory.dmp

Filesize
84KB

Download
memory/1800-111-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1800-90-0x00000000004085D0-mapping.dmp

Download
memory/1876-71-0x0000000000000000-mapping.dmp

Download
memory/1992-98-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/1992-100-0x0000000000476940-mapping.dmp

Download
memory/1992-99-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/1992-92-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/1992-107-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/1992-108-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/1992-109-0x0000000074AD1000-0x0000000074AD3000-memory.dmp

Filesize
8KB

Download
memory/1992-110-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/1992-94-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download