de389768355094301069d917e16d142638b1d601d8533851181dde1ed94e1e1e

Analysis

max time kernel
149s
max time network
32s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
23-11-2022 21:14

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General

Target

de389768355094301069d917e16d142638b1d601d8533851181dde1ed94e1e1e.exe
Size

292KB
MD5

d4c801391c3321ae7ae13e4f983bee68
SHA1

61e9bb9ff50b75bac723d9867d09ad4209e23ac5
SHA256

de389768355094301069d917e16d142638b1d601d8533851181dde1ed94e1e1e
SHA512

dbf5593d21e31ce4b888dd33376d079bedd9e073932f0bfc1b350933ee10f8fcc895e65fa5824747cd44b247f1e8237b05bd1d9c6707ca1b1be9a92ea74b5616
SSDEEP

6144:sN+HTr4epupB3/4YIJ8m1MxUyRzoVOBlYQflIGT:sNgrZaP4BJTM6++OBlYERT

Score

8^/10

aspackv2 persistence upx

Malware Config

Signatures

ASPack v2.12-2.42 12 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

Processes:

resource	yara_rule
C:\4ea71323.exe	aspack_v212_v242
C:\4ea71323.exe	aspack_v212_v242
\??\c:\windows\SysWOW64\fastuserswitchingcompatibility.dll	aspack_v212_v242
\Windows\SysWOW64\FastUserSwitchingCompatibility.dll	aspack_v212_v242
\??\c:\windows\SysWOW64\irmon.dll	aspack_v212_v242
\Windows\SysWOW64\Irmon.dll	aspack_v212_v242
\??\c:\windows\SysWOW64\nla.dll	aspack_v212_v242
\Windows\SysWOW64\Nla.dll	aspack_v212_v242
\??\c:\windows\SysWOW64\ntmssvc.dll	aspack_v212_v242
\Windows\SysWOW64\Ntmssvc.dll	aspack_v212_v242
\??\c:\windows\SysWOW64\nwcworkstation.dll	aspack_v212_v242
\Windows\SysWOW64\NWCWorkstation.dll	aspack_v212_v242

Executes dropped EXE 1 IoCs

Processes:

4ea71323.exe

pid process

1004 4ea71323.exe

pid	process
1004	4ea71323.exe

Sets DLL path for service in the registry 2 TTPs 6 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

4ea71323.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\NWCWorkstation\Parameters\ServiceDll = "C:\\Windows\\system32\\NWCWorkstation.dll"	4ea71323.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\FastUserSwitchingCompatibility\Parameters\ServiceDll = "C:\\Windows\\system32\\FastUserSwitchingCompatibility.dll"	4ea71323.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Ias\Parameters\ServiceDll = "C:\\Windows\\system32\\Ias.dll"	4ea71323.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Irmon\Parameters\ServiceDll = "C:\\Windows\\system32\\Irmon.dll"	4ea71323.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Nla\Parameters\ServiceDll = "C:\\Windows\\system32\\Nla.dll"	4ea71323.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Ntmssvc\Parameters\ServiceDll = "C:\\Windows\\system32\\Ntmssvc.dll"	4ea71323.exe

UPX packed file 32 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1152-55-0x0000000000400000-0x0000000000460000-memory.dmp	upx
C:\4ea71323.exe	upx
C:\4ea71323.exe	upx
behavioral1/memory/1004-60-0x0000000000DD0000-0x0000000000E1E000-memory.dmp	upx
behavioral1/memory/1004-61-0x0000000000DD0000-0x0000000000E1E000-memory.dmp	upx
behavioral1/memory/1152-62-0x0000000000240000-0x00000000002A0000-memory.dmp	upx
behavioral1/memory/1004-66-0x0000000000DD0000-0x0000000000E1E000-memory.dmp	upx
behavioral1/memory/1004-67-0x0000000000160000-0x00000000001AE000-memory.dmp	upx
behavioral1/memory/1152-69-0x0000000000400000-0x0000000000460000-memory.dmp	upx
behavioral1/memory/1152-70-0x0000000000240000-0x00000000002A0000-memory.dmp	upx
\??\c:\windows\SysWOW64\fastuserswitchingcompatibility.dll	upx
\Windows\SysWOW64\FastUserSwitchingCompatibility.dll	upx
behavioral1/memory/576-75-0x0000000074AD0000-0x0000000074B1E000-memory.dmp	upx
behavioral1/memory/576-76-0x0000000074AD0000-0x0000000074B1E000-memory.dmp	upx
behavioral1/memory/576-77-0x0000000074AD0000-0x0000000074B1E000-memory.dmp	upx
\??\c:\windows\SysWOW64\irmon.dll	upx
\Windows\SysWOW64\Irmon.dll	upx
behavioral1/memory/1548-82-0x0000000074AD0000-0x0000000074B1E000-memory.dmp	upx
behavioral1/memory/1548-81-0x0000000074AD0000-0x0000000074B1E000-memory.dmp	upx
behavioral1/memory/1548-83-0x0000000074AD0000-0x0000000074B1E000-memory.dmp	upx
\??\c:\windows\SysWOW64\nla.dll	upx
\Windows\SysWOW64\Nla.dll	upx
behavioral1/memory/1940-87-0x0000000074AD0000-0x0000000074B1E000-memory.dmp	upx
behavioral1/memory/1940-88-0x0000000074AD0000-0x0000000074B1E000-memory.dmp	upx
behavioral1/memory/1940-89-0x0000000074AD0000-0x0000000074B1E000-memory.dmp	upx
\??\c:\windows\SysWOW64\ntmssvc.dll	upx
\Windows\SysWOW64\Ntmssvc.dll	upx
\??\c:\windows\SysWOW64\nwcworkstation.dll	upx
\Windows\SysWOW64\NWCWorkstation.dll	upx
behavioral1/memory/1740-98-0x0000000074AD0000-0x0000000074B1E000-memory.dmp	upx
behavioral1/memory/1740-99-0x0000000074AD0000-0x0000000074B1E000-memory.dmp	upx
behavioral1/memory/1740-100-0x0000000074AD0000-0x0000000074B1E000-memory.dmp	upx

Loads dropped DLL 5 IoCs

Processes:

svchost.exesvchost.exesvchost.exesvchost.exesvchost.exe

pid process

576 svchost.exe
1548 svchost.exe
1940 svchost.exe
1276 svchost.exe
1740 svchost.exe

pid	process
576	svchost.exe
1548	svchost.exe
1940	svchost.exe
1276	svchost.exe
1740	svchost.exe

Drops file in System32 directory 6 IoCs

Processes:

4ea71323.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\Ntmssvc.dll	4ea71323.exe
File opened for modification	C:\Windows\SysWOW64\NWCWorkstation.dll	4ea71323.exe
File opened for modification	C:\Windows\SysWOW64\FastUserSwitchingCompatibility.dll	4ea71323.exe
File opened for modification	C:\Windows\SysWOW64\Ias.dll	4ea71323.exe
File opened for modification	C:\Windows\SysWOW64\Irmon.dll	4ea71323.exe
File opened for modification	C:\Windows\SysWOW64\Nla.dll	4ea71323.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

4ea71323.exe

pid process

1004 4ea71323.exe

pid	process
1004	4ea71323.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

de389768355094301069d917e16d142638b1d601d8533851181dde1ed94e1e1e.exe

description	pid	process	target process
PID 1152 wrote to memory of 1004	1152	de389768355094301069d917e16d142638b1d601d8533851181dde1ed94e1e1e.exe	4ea71323.exe
PID 1152 wrote to memory of 1004	1152	de389768355094301069d917e16d142638b1d601d8533851181dde1ed94e1e1e.exe	4ea71323.exe
PID 1152 wrote to memory of 1004	1152	de389768355094301069d917e16d142638b1d601d8533851181dde1ed94e1e1e.exe	4ea71323.exe
PID 1152 wrote to memory of 1004	1152	de389768355094301069d917e16d142638b1d601d8533851181dde1ed94e1e1e.exe	4ea71323.exe
PID 1152 wrote to memory of 1004	1152	de389768355094301069d917e16d142638b1d601d8533851181dde1ed94e1e1e.exe	4ea71323.exe
PID 1152 wrote to memory of 1004	1152	de389768355094301069d917e16d142638b1d601d8533851181dde1ed94e1e1e.exe	4ea71323.exe
PID 1152 wrote to memory of 1004	1152	de389768355094301069d917e16d142638b1d601d8533851181dde1ed94e1e1e.exe	4ea71323.exe

C:\Users\Admin\AppData\Local\Temp\de389768355094301069d917e16d142638b1d601d8533851181dde1ed94e1e1e.exe
"C:\Users\Admin\AppData\Local\Temp\de389768355094301069d917e16d142638b1d601d8533851181dde1ed94e1e1e.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1152

C:\4ea71323.exe
C:\4ea71323.exe
2⤵
- Executes dropped EXE
- Sets DLL path for service in the registry
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
PID:1004

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs
1⤵
- Loads dropped DLL
PID:576

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs
1⤵
PID:868

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs
1⤵
- Loads dropped DLL
PID:1548

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs
1⤵
- Loads dropped DLL
PID:1940

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs
1⤵
- Loads dropped DLL
PID:1276

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs
1⤵
- Loads dropped DLL
PID:1740

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\4ea71323.exe
Filesize
240KB

MD5
f5d2a6e81cd9b23d4899371b296b8a8c

SHA1
7b095e73b522c5a1b12e26ae389464c5c123bc8e

SHA256
775082343ef68119bf9bf671c677c981b68ed6f627ff5b8b4de414e2e9d29a42

SHA512
77842aae633daac864c148fdc5d40b22cc1dc9e3e0c0e81df7694d2c6e95bfb02bc18bb34c047bbf4b12dc24d14eb1b89acf75f43f547e311fe63730b6a54662

Download Submit
C:\4ea71323.exe
Filesize
240KB

MD5
f5d2a6e81cd9b23d4899371b296b8a8c

SHA1
7b095e73b522c5a1b12e26ae389464c5c123bc8e

SHA256
775082343ef68119bf9bf671c677c981b68ed6f627ff5b8b4de414e2e9d29a42

SHA512
77842aae633daac864c148fdc5d40b22cc1dc9e3e0c0e81df7694d2c6e95bfb02bc18bb34c047bbf4b12dc24d14eb1b89acf75f43f547e311fe63730b6a54662

Download Submit
\??\c:\windows\SysWOW64\fastuserswitchingcompatibility.dll
Filesize
240KB

MD5
e48f830a89ba95daf7650bb9b05bd117

SHA1
304e6666ad4a8e0329f7aa4646c34c5fe57d19fe

SHA256
046338af97e20aaf13aa5aa3c550a139a5f41ee3f22592497ab1f9b7c82786c6

SHA512
a462bea2fedd9135dd9b226b5b20cfd8172581d03b2c06acae4018ba8fba1c1e5f2d68f7e0ff860fd9269a02e36cc6c59e33b8c02f8168cd83e674ee074b3095

Download Submit
\??\c:\windows\SysWOW64\irmon.dll
Filesize
240KB

MD5
e48f830a89ba95daf7650bb9b05bd117

SHA1
304e6666ad4a8e0329f7aa4646c34c5fe57d19fe

SHA256
046338af97e20aaf13aa5aa3c550a139a5f41ee3f22592497ab1f9b7c82786c6

SHA512
a462bea2fedd9135dd9b226b5b20cfd8172581d03b2c06acae4018ba8fba1c1e5f2d68f7e0ff860fd9269a02e36cc6c59e33b8c02f8168cd83e674ee074b3095

Download Submit
\??\c:\windows\SysWOW64\nla.dll
Filesize
240KB

MD5
e48f830a89ba95daf7650bb9b05bd117

SHA1
304e6666ad4a8e0329f7aa4646c34c5fe57d19fe

SHA256
046338af97e20aaf13aa5aa3c550a139a5f41ee3f22592497ab1f9b7c82786c6

SHA512
a462bea2fedd9135dd9b226b5b20cfd8172581d03b2c06acae4018ba8fba1c1e5f2d68f7e0ff860fd9269a02e36cc6c59e33b8c02f8168cd83e674ee074b3095

Download Submit
\??\c:\windows\SysWOW64\ntmssvc.dll
Filesize
240KB

MD5
e48f830a89ba95daf7650bb9b05bd117

SHA1
304e6666ad4a8e0329f7aa4646c34c5fe57d19fe

SHA256
046338af97e20aaf13aa5aa3c550a139a5f41ee3f22592497ab1f9b7c82786c6

SHA512
a462bea2fedd9135dd9b226b5b20cfd8172581d03b2c06acae4018ba8fba1c1e5f2d68f7e0ff860fd9269a02e36cc6c59e33b8c02f8168cd83e674ee074b3095

Download Submit
\??\c:\windows\SysWOW64\nwcworkstation.dll
Filesize
240KB

MD5
e48f830a89ba95daf7650bb9b05bd117

SHA1
304e6666ad4a8e0329f7aa4646c34c5fe57d19fe

SHA256
046338af97e20aaf13aa5aa3c550a139a5f41ee3f22592497ab1f9b7c82786c6

SHA512
a462bea2fedd9135dd9b226b5b20cfd8172581d03b2c06acae4018ba8fba1c1e5f2d68f7e0ff860fd9269a02e36cc6c59e33b8c02f8168cd83e674ee074b3095

Download Submit
\Windows\SysWOW64\FastUserSwitchingCompatibility.dll
Filesize
240KB

MD5
e48f830a89ba95daf7650bb9b05bd117

SHA1
304e6666ad4a8e0329f7aa4646c34c5fe57d19fe

SHA256
046338af97e20aaf13aa5aa3c550a139a5f41ee3f22592497ab1f9b7c82786c6

SHA512
a462bea2fedd9135dd9b226b5b20cfd8172581d03b2c06acae4018ba8fba1c1e5f2d68f7e0ff860fd9269a02e36cc6c59e33b8c02f8168cd83e674ee074b3095

Download Submit
\Windows\SysWOW64\Irmon.dll
Filesize
240KB

MD5
e48f830a89ba95daf7650bb9b05bd117

SHA1
304e6666ad4a8e0329f7aa4646c34c5fe57d19fe

SHA256
046338af97e20aaf13aa5aa3c550a139a5f41ee3f22592497ab1f9b7c82786c6

SHA512
a462bea2fedd9135dd9b226b5b20cfd8172581d03b2c06acae4018ba8fba1c1e5f2d68f7e0ff860fd9269a02e36cc6c59e33b8c02f8168cd83e674ee074b3095

Download Submit
\Windows\SysWOW64\NWCWorkstation.dll
Filesize
240KB

MD5
e48f830a89ba95daf7650bb9b05bd117

SHA1
304e6666ad4a8e0329f7aa4646c34c5fe57d19fe

SHA256
046338af97e20aaf13aa5aa3c550a139a5f41ee3f22592497ab1f9b7c82786c6

SHA512
a462bea2fedd9135dd9b226b5b20cfd8172581d03b2c06acae4018ba8fba1c1e5f2d68f7e0ff860fd9269a02e36cc6c59e33b8c02f8168cd83e674ee074b3095

Download Submit
\Windows\SysWOW64\Nla.dll
Filesize
240KB

MD5
e48f830a89ba95daf7650bb9b05bd117

SHA1
304e6666ad4a8e0329f7aa4646c34c5fe57d19fe

SHA256
046338af97e20aaf13aa5aa3c550a139a5f41ee3f22592497ab1f9b7c82786c6

SHA512
a462bea2fedd9135dd9b226b5b20cfd8172581d03b2c06acae4018ba8fba1c1e5f2d68f7e0ff860fd9269a02e36cc6c59e33b8c02f8168cd83e674ee074b3095

Download Submit
\Windows\SysWOW64\Ntmssvc.dll
Filesize
240KB

MD5
e48f830a89ba95daf7650bb9b05bd117

SHA1
304e6666ad4a8e0329f7aa4646c34c5fe57d19fe

SHA256
046338af97e20aaf13aa5aa3c550a139a5f41ee3f22592497ab1f9b7c82786c6

SHA512
a462bea2fedd9135dd9b226b5b20cfd8172581d03b2c06acae4018ba8fba1c1e5f2d68f7e0ff860fd9269a02e36cc6c59e33b8c02f8168cd83e674ee074b3095

Download Submit
memory/576-77-0x0000000074AD0000-0x0000000074B1E000-memory.dmp

Filesize
312KB

Download
memory/576-76-0x0000000074AD0000-0x0000000074B1E000-memory.dmp

Filesize
312KB

Download
memory/576-75-0x0000000074AD0000-0x0000000074B1E000-memory.dmp

Filesize
312KB

Download
memory/1004-56-0x0000000000000000-mapping.dmp

Download
memory/1004-71-0x0000000002220000-0x0000000006220000-memory.dmp

Filesize
64.0MB

Download
memory/1004-60-0x0000000000DD0000-0x0000000000E1E000-memory.dmp

Filesize
312KB

Download
memory/1004-61-0x0000000000DD0000-0x0000000000E1E000-memory.dmp

Filesize
312KB

Download
memory/1004-68-0x0000000002220000-0x0000000006220000-memory.dmp

Filesize
64.0MB

Download
memory/1004-67-0x0000000000160000-0x00000000001AE000-memory.dmp

Filesize
312KB

Download
memory/1004-66-0x0000000000DD0000-0x0000000000E1E000-memory.dmp

Filesize
312KB

Download
memory/1152-70-0x0000000000240000-0x00000000002A0000-memory.dmp

Filesize
384KB

Download
memory/1152-65-0x0000000000390000-0x00000000003DE000-memory.dmp

Filesize
312KB

Download
memory/1152-54-0x0000000075881000-0x0000000075883000-memory.dmp

Filesize
8KB

Download
memory/1152-55-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/1152-64-0x0000000000240000-0x00000000002A0000-memory.dmp

Filesize
384KB

Download
memory/1152-62-0x0000000000240000-0x00000000002A0000-memory.dmp

Filesize
384KB

Download
memory/1152-63-0x0000000000240000-0x00000000002A0000-memory.dmp

Filesize
384KB

Download
memory/1152-69-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/1548-83-0x0000000074AD0000-0x0000000074B1E000-memory.dmp

Filesize
312KB

Download
memory/1548-81-0x0000000074AD0000-0x0000000074B1E000-memory.dmp

Filesize
312KB

Download
memory/1548-82-0x0000000074AD0000-0x0000000074B1E000-memory.dmp

Filesize
312KB

Download
memory/1740-98-0x0000000074AD0000-0x0000000074B1E000-memory.dmp

Filesize
312KB

Download
memory/1740-99-0x0000000074AD0000-0x0000000074B1E000-memory.dmp

Filesize
312KB

Download
memory/1740-100-0x0000000074AD0000-0x0000000074B1E000-memory.dmp

Filesize
312KB

Download
memory/1940-88-0x0000000074AD0000-0x0000000074B1E000-memory.dmp

Filesize
312KB

Download
memory/1940-89-0x0000000074AD0000-0x0000000074B1E000-memory.dmp

Filesize
312KB

Download
memory/1940-87-0x0000000074AD0000-0x0000000074B1E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads