d607e4cf6254db79c5a50a6e59c25f9387951f545da0b1475719209d8d357f64

Analysis

max time kernel
147s
max time network
137s
platform
windows7_x64
resource
win7
submitted
15-10-2020 23:03

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General

Target

vpFeuLfJ.exe
Size

33KB
MD5

0613e9a0b44d56f9203f838b07932f84
SHA1

952038465310a43a6741ba20d38e1a0c9d28ead1
SHA256

d607e4cf6254db79c5a50a6e59c25f9387951f545da0b1475719209d8d357f64
SHA512

fb18ab1740d048cfa0b13b051b16f7faf20c6c1a026f526688586fa04aec923f52e198418c8e7b0f024a9a5a3dcc794a44bd14409e7b8f8cfad214286a963d80

Score

8^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 4 IoCs

Processes:

Server.exeServer.exeServer.exeServer.exe

pid process

320 Server.exe
1332 Server.exe
2012 Server.exe
936 Server.exe
Modifies Installed Components in the registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

pid	process
320	Server.exe
1332	Server.exe
2012	Server.exe
936	Server.exe

UPX packed file 19 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1060-0-0x0000000010000000-0x000000001004D000-memory.dmp	upx
C:\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe	upx
behavioral1/memory/1948-5-0x0000000030000000-0x00000000300C5000-memory.dmp	upx
behavioral1/memory/1948-7-0x0000000030000000-0x00000000300C5000-memory.dmp	upx
behavioral1/memory/1948-9-0x0000000030000000-0x00000000300C5000-memory.dmp	upx
behavioral1/memory/1948-12-0x0000000030000000-0x00000000300C5000-memory.dmp	upx
\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe	upx
\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe	upx
C:\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe	upx
\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe	upx
behavioral1/memory/1332-25-0x0000000030000000-0x00000000300C5000-memory.dmp	upx
C:\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe	upx
behavioral1/memory/1332-29-0x0000000030000000-0x00000000300C5000-memory.dmp	upx
\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe	upx
\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe	upx
C:\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe	upx
\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe	upx
C:\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe	upx
behavioral1/memory/936-45-0x0000000030000000-0x00000000300C5000-memory.dmp	upx

Loads dropped DLL 6 IoCs

Processes:

svchost.exeServer.exeServer.exe

pid process

1060 svchost.exe
1060 svchost.exe
320 Server.exe
1060 svchost.exe
1060 svchost.exe
2012 Server.exe

pid	process
1060	svchost.exe
1060	svchost.exe
320	Server.exe
1060	svchost.exe
1060	svchost.exe
2012	Server.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Users\\Admin\\AppData\\Local\\Temp\\InstallDir\\Server.exe"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Users\\Admin\\AppData\\Local\\Temp\\InstallDir\\Server.exe"	svchost.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

vpFeuLfJ.exeServer.exeServer.exe

description	pid	process	target process
PID 1100 set thread context of 1948	1100	vpFeuLfJ.exe	vpFeuLfJ.exe
PID 320 set thread context of 1332	320	Server.exe	Server.exe
PID 2012 set thread context of 936	2012	Server.exe	Server.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

Server.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Server.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Server.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

vpFeuLfJ.exeServer.exeServer.exeServer.exe

pid process

1100 vpFeuLfJ.exe
320 Server.exe
2012 Server.exe
936 Server.exe

pid	process
1100	vpFeuLfJ.exe
320	Server.exe
2012	Server.exe
936	Server.exe

Suspicious use of WriteProcessMemory 37 IoCs

Processes:

vpFeuLfJ.exesvchost.exeServer.exeServer.exe

description	pid	process	target process
PID 1100 wrote to memory of 1060	1100	vpFeuLfJ.exe	svchost.exe
PID 1100 wrote to memory of 1060	1100	vpFeuLfJ.exe	svchost.exe
PID 1100 wrote to memory of 1060	1100	vpFeuLfJ.exe	svchost.exe
PID 1100 wrote to memory of 1060	1100	vpFeuLfJ.exe	svchost.exe
PID 1100 wrote to memory of 1060	1100	vpFeuLfJ.exe	svchost.exe
PID 1100 wrote to memory of 1948	1100	vpFeuLfJ.exe	vpFeuLfJ.exe
PID 1100 wrote to memory of 1948	1100	vpFeuLfJ.exe	vpFeuLfJ.exe
PID 1100 wrote to memory of 1948	1100	vpFeuLfJ.exe	vpFeuLfJ.exe
PID 1100 wrote to memory of 1948	1100	vpFeuLfJ.exe	vpFeuLfJ.exe
PID 1100 wrote to memory of 1948	1100	vpFeuLfJ.exe	vpFeuLfJ.exe
PID 1100 wrote to memory of 1948	1100	vpFeuLfJ.exe	vpFeuLfJ.exe
PID 1100 wrote to memory of 1948	1100	vpFeuLfJ.exe	vpFeuLfJ.exe
PID 1100 wrote to memory of 1948	1100	vpFeuLfJ.exe	vpFeuLfJ.exe
PID 1060 wrote to memory of 320	1060	svchost.exe	Server.exe
PID 1060 wrote to memory of 320	1060	svchost.exe	Server.exe
PID 1060 wrote to memory of 320	1060	svchost.exe	Server.exe
PID 1060 wrote to memory of 320	1060	svchost.exe	Server.exe
PID 320 wrote to memory of 1332	320	Server.exe	Server.exe
PID 320 wrote to memory of 1332	320	Server.exe	Server.exe
PID 320 wrote to memory of 1332	320	Server.exe	Server.exe
PID 320 wrote to memory of 1332	320	Server.exe	Server.exe
PID 320 wrote to memory of 1332	320	Server.exe	Server.exe
PID 320 wrote to memory of 1332	320	Server.exe	Server.exe
PID 320 wrote to memory of 1332	320	Server.exe	Server.exe
PID 320 wrote to memory of 1332	320	Server.exe	Server.exe
PID 1060 wrote to memory of 2012	1060	svchost.exe	Server.exe
PID 1060 wrote to memory of 2012	1060	svchost.exe	Server.exe
PID 1060 wrote to memory of 2012	1060	svchost.exe	Server.exe
PID 1060 wrote to memory of 2012	1060	svchost.exe	Server.exe
PID 2012 wrote to memory of 936	2012	Server.exe	Server.exe
PID 2012 wrote to memory of 936	2012	Server.exe	Server.exe
PID 2012 wrote to memory of 936	2012	Server.exe	Server.exe
PID 2012 wrote to memory of 936	2012	Server.exe	Server.exe
PID 2012 wrote to memory of 936	2012	Server.exe	Server.exe
PID 2012 wrote to memory of 936	2012	Server.exe	Server.exe
PID 2012 wrote to memory of 936	2012	Server.exe	Server.exe
PID 2012 wrote to memory of 936	2012	Server.exe	Server.exe

C:\Users\Admin\AppData\Local\Temp\vpFeuLfJ.exe
"C:\Users\Admin\AppData\Local\Temp\vpFeuLfJ.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1100

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1060

C:\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe
"C:\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe"
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:320

C:\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe
C:\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe
4⤵
- Executes dropped EXE
PID:1332

C:\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe
"C:\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe"
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2012

C:\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe
C:\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe
4⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious use of SetWindowsHookEx
PID:936

C:\Users\Admin\AppData\Local\Temp\vpFeuLfJ.exe
C:\Users\Admin\AppData\Local\Temp\vpFeuLfJ.exe
2⤵
PID:1948

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

Query Registry

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe
MD5
0613e9a0b44d56f9203f838b07932f84

SHA1
952038465310a43a6741ba20d38e1a0c9d28ead1

SHA256
d607e4cf6254db79c5a50a6e59c25f9387951f545da0b1475719209d8d357f64

SHA512
fb18ab1740d048cfa0b13b051b16f7faf20c6c1a026f526688586fa04aec923f52e198418c8e7b0f024a9a5a3dcc794a44bd14409e7b8f8cfad214286a963d80

Download Submit
C:\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe
MD5
0613e9a0b44d56f9203f838b07932f84

SHA1
952038465310a43a6741ba20d38e1a0c9d28ead1

SHA256
d607e4cf6254db79c5a50a6e59c25f9387951f545da0b1475719209d8d357f64

SHA512
fb18ab1740d048cfa0b13b051b16f7faf20c6c1a026f526688586fa04aec923f52e198418c8e7b0f024a9a5a3dcc794a44bd14409e7b8f8cfad214286a963d80

Download Submit
C:\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe
MD5
0613e9a0b44d56f9203f838b07932f84

SHA1
952038465310a43a6741ba20d38e1a0c9d28ead1

SHA256
d607e4cf6254db79c5a50a6e59c25f9387951f545da0b1475719209d8d357f64

SHA512
fb18ab1740d048cfa0b13b051b16f7faf20c6c1a026f526688586fa04aec923f52e198418c8e7b0f024a9a5a3dcc794a44bd14409e7b8f8cfad214286a963d80

Download Submit
C:\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe
MD5
0613e9a0b44d56f9203f838b07932f84

SHA1
952038465310a43a6741ba20d38e1a0c9d28ead1

SHA256
d607e4cf6254db79c5a50a6e59c25f9387951f545da0b1475719209d8d357f64

SHA512
fb18ab1740d048cfa0b13b051b16f7faf20c6c1a026f526688586fa04aec923f52e198418c8e7b0f024a9a5a3dcc794a44bd14409e7b8f8cfad214286a963d80

Download Submit
C:\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe
MD5
0613e9a0b44d56f9203f838b07932f84

SHA1
952038465310a43a6741ba20d38e1a0c9d28ead1

SHA256
d607e4cf6254db79c5a50a6e59c25f9387951f545da0b1475719209d8d357f64

SHA512
fb18ab1740d048cfa0b13b051b16f7faf20c6c1a026f526688586fa04aec923f52e198418c8e7b0f024a9a5a3dcc794a44bd14409e7b8f8cfad214286a963d80

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\BESjMo2RJc.cfg
MD5
88dd1c0a11cc6955bd1d48cc63503e65

SHA1
d7bd22f2289d05c3b92119f1de8f5a862a4d095b

SHA256
18ddd5b548e38e9dc56e4cf3b4792a2e894fb3035f3f5c39d84743901bcca2ce

SHA512
1470d35d33666be39137f50b026c0efcf258a896e61249b6ab540e0b5803936b3fdfe35adcfd8b86d2dbf0012ddd3f85dc10698c65e0b12c7e720c5081bfc84d

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\BESjMo2RJc.cfg
MD5
88dd1c0a11cc6955bd1d48cc63503e65

SHA1
d7bd22f2289d05c3b92119f1de8f5a862a4d095b

SHA256
18ddd5b548e38e9dc56e4cf3b4792a2e894fb3035f3f5c39d84743901bcca2ce

SHA512
1470d35d33666be39137f50b026c0efcf258a896e61249b6ab540e0b5803936b3fdfe35adcfd8b86d2dbf0012ddd3f85dc10698c65e0b12c7e720c5081bfc84d

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\BESjMo2RJc.cfg
MD5
88dd1c0a11cc6955bd1d48cc63503e65

SHA1
d7bd22f2289d05c3b92119f1de8f5a862a4d095b

SHA256
18ddd5b548e38e9dc56e4cf3b4792a2e894fb3035f3f5c39d84743901bcca2ce

SHA512
1470d35d33666be39137f50b026c0efcf258a896e61249b6ab540e0b5803936b3fdfe35adcfd8b86d2dbf0012ddd3f85dc10698c65e0b12c7e720c5081bfc84d

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\BESjMo2RJc.xtr
MD5
a3b6b41dd2f4744759ea063c2e6d5a4a

SHA1
6e0342cf4bb66045f54aeaf99e7142b668effc33

SHA256
a5ed729dda2977c424f94f407f239d66c0406c78b35111900a591c952c091dda

SHA512
a344727ee5f8cef0362b11c6875ab47cc3acff78a6aa86079f014fc78fdde96cba425b30d831a99430a5c1fa201b55cfad35baa9c7a1308cd2b306403e093eb9

Download Submit
\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe
MD5
0613e9a0b44d56f9203f838b07932f84

SHA1
952038465310a43a6741ba20d38e1a0c9d28ead1

SHA256
d607e4cf6254db79c5a50a6e59c25f9387951f545da0b1475719209d8d357f64

SHA512
fb18ab1740d048cfa0b13b051b16f7faf20c6c1a026f526688586fa04aec923f52e198418c8e7b0f024a9a5a3dcc794a44bd14409e7b8f8cfad214286a963d80

Download Submit
\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe
MD5
0613e9a0b44d56f9203f838b07932f84

SHA1
952038465310a43a6741ba20d38e1a0c9d28ead1

SHA256
d607e4cf6254db79c5a50a6e59c25f9387951f545da0b1475719209d8d357f64

SHA512
fb18ab1740d048cfa0b13b051b16f7faf20c6c1a026f526688586fa04aec923f52e198418c8e7b0f024a9a5a3dcc794a44bd14409e7b8f8cfad214286a963d80

Download Submit
\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe
MD5
0613e9a0b44d56f9203f838b07932f84

SHA1
952038465310a43a6741ba20d38e1a0c9d28ead1

SHA256
d607e4cf6254db79c5a50a6e59c25f9387951f545da0b1475719209d8d357f64

SHA512
fb18ab1740d048cfa0b13b051b16f7faf20c6c1a026f526688586fa04aec923f52e198418c8e7b0f024a9a5a3dcc794a44bd14409e7b8f8cfad214286a963d80

Download Submit
\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe
MD5
0613e9a0b44d56f9203f838b07932f84

SHA1
952038465310a43a6741ba20d38e1a0c9d28ead1

SHA256
d607e4cf6254db79c5a50a6e59c25f9387951f545da0b1475719209d8d357f64

SHA512
fb18ab1740d048cfa0b13b051b16f7faf20c6c1a026f526688586fa04aec923f52e198418c8e7b0f024a9a5a3dcc794a44bd14409e7b8f8cfad214286a963d80

Download Submit
\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe
MD5
0613e9a0b44d56f9203f838b07932f84

SHA1
952038465310a43a6741ba20d38e1a0c9d28ead1

SHA256
d607e4cf6254db79c5a50a6e59c25f9387951f545da0b1475719209d8d357f64

SHA512
fb18ab1740d048cfa0b13b051b16f7faf20c6c1a026f526688586fa04aec923f52e198418c8e7b0f024a9a5a3dcc794a44bd14409e7b8f8cfad214286a963d80

Download Submit
\Users\Admin\AppData\Local\Temp\InstallDir\Server.exe
MD5
0613e9a0b44d56f9203f838b07932f84

SHA1
952038465310a43a6741ba20d38e1a0c9d28ead1

SHA256
d607e4cf6254db79c5a50a6e59c25f9387951f545da0b1475719209d8d357f64

SHA512
fb18ab1740d048cfa0b13b051b16f7faf20c6c1a026f526688586fa04aec923f52e198418c8e7b0f024a9a5a3dcc794a44bd14409e7b8f8cfad214286a963d80

Download Submit
memory/320-15-0x0000000000000000-mapping.dmp

Download
memory/936-45-0x0000000030000000-0x00000000300C5000-memory.dmp

Filesize
788KB

Download
memory/936-43-0x00000000300C3850-mapping.dmp

Download
memory/1060-0-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1060-1-0x0000000000000000-mapping.dmp

Download
memory/1332-27-0x00000000300C3850-mapping.dmp

Download
memory/1332-29-0x0000000030000000-0x00000000300C5000-memory.dmp

Filesize
788KB

Download
memory/1332-25-0x0000000030000000-0x00000000300C5000-memory.dmp

Filesize
788KB

Download
memory/1876-3-0x000007FEF7D20000-0x000007FEF7F9A000-memory.dmp

Filesize
2.5MB

Download
memory/1948-7-0x0000000030000000-0x00000000300C5000-memory.dmp

Filesize
788KB

Download
memory/1948-5-0x0000000030000000-0x00000000300C5000-memory.dmp

Filesize
788KB

Download
memory/1948-4-0x0000000030000000-0x00000000300C5000-memory.dmp

Filesize
788KB

Download
memory/1948-9-0x0000000030000000-0x00000000300C5000-memory.dmp

Filesize
788KB

Download
memory/1948-11-0x00000000300C3850-mapping.dmp

Download
memory/1948-12-0x0000000030000000-0x00000000300C5000-memory.dmp

Filesize
788KB

Download
memory/2012-32-0x0000000000000000-mapping.dmp

Download