66a7e302e4e91a0d6f19e5dd959d728a176e88e036f764df70fc608d63ee0639

Analysis

max time kernel
232s
max time network
247s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2022 09:39

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General

Target

66a7e302e4e91a0d6f19e5dd959d728a176e88e036f764df70fc608d63ee0639.exe
Size

9.1MB
MD5

657d00d906210c55e98ae40bea00d7f8
SHA1

7aa3f8fa108002b728713fa6c58ae2be289ea7b8
SHA256

66a7e302e4e91a0d6f19e5dd959d728a176e88e036f764df70fc608d63ee0639
SHA512

085ad198af3fd1729d9677199484548c6c0f954de7cf6bb0d45ee6708941d3a7caf2b9b8aad6abcb52e6501c3567997f1630a569310d381555c6a1ae81df9963
SSDEEP

196608:L0O4sOBXA8Tg8cPVmkj9cOlaz5zTqzScCdrhCY5fyBT1zVi3Q:gls6XPTg8IfjyyzrCSVBT1Yg

Score

9^/10

evasion upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 4 IoCs

Detects file using ACProtect software.

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\nso74B0.tmp\md5dll.dll	acprotect
C:\Users\Admin\AppData\Local\Temp\nso74B0.tmp\md5dll.dll	acprotect
C:\Users\Admin\AppData\Local\Temp\nso74B0.tmp\md5dll.dll	acprotect
C:\Users\Admin\AppData\Local\Temp\nso74B0.tmp\md5dll.dll	acprotect

Checks for common network interception software 1 TTPs
Looks in the registry for tools like Wireshark or Fiddler commonly used to analyze network activity.
evasion

Software Discovery
T1518
Executes dropped EXE 1 IoCs

Processes:

Cmmtukxcyfqiw.exe

pid process

1400 Cmmtukxcyfqiw.exe

pid	process
1400	Cmmtukxcyfqiw.exe

UPX packed file 4 IoCs

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

upx

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\nso74B0.tmp\md5dll.dll	upx
C:\Users\Admin\AppData\Local\Temp\nso74B0.tmp\md5dll.dll	upx
C:\Users\Admin\AppData\Local\Temp\nso74B0.tmp\md5dll.dll	upx
C:\Users\Admin\AppData\Local\Temp\nso74B0.tmp\md5dll.dll	upx

Loads dropped DLL 20 IoCs

Processes:

66a7e302e4e91a0d6f19e5dd959d728a176e88e036f764df70fc608d63ee0639.exeCmmtukxcyfqiw.exe

pid	process
4484	66a7e302e4e91a0d6f19e5dd959d728a176e88e036f764df70fc608d63ee0639.exe
4484	66a7e302e4e91a0d6f19e5dd959d728a176e88e036f764df70fc608d63ee0639.exe
4484	66a7e302e4e91a0d6f19e5dd959d728a176e88e036f764df70fc608d63ee0639.exe
1400	Cmmtukxcyfqiw.exe
1400	Cmmtukxcyfqiw.exe
1400	Cmmtukxcyfqiw.exe
1400	Cmmtukxcyfqiw.exe
1400	Cmmtukxcyfqiw.exe
1400	Cmmtukxcyfqiw.exe
1400	Cmmtukxcyfqiw.exe
1400	Cmmtukxcyfqiw.exe
1400	Cmmtukxcyfqiw.exe
1400	Cmmtukxcyfqiw.exe
1400	Cmmtukxcyfqiw.exe
1400	Cmmtukxcyfqiw.exe
1400	Cmmtukxcyfqiw.exe
1400	Cmmtukxcyfqiw.exe
1400	Cmmtukxcyfqiw.exe
1400	Cmmtukxcyfqiw.exe
1400	Cmmtukxcyfqiw.exe

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

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3848 1400 WerFault.exe Cmmtukxcyfqiw.exe

pid	pid_target	process	target process
3848	1400	WerFault.exe	Cmmtukxcyfqiw.exe

NSIS installer 2 IoCs

installer

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\nseDD52.tmp\Cmmtukxcyfqiw.exe	nsis_installer_2
C:\Users\Admin\AppData\Local\Temp\nseDD52.tmp\Cmmtukxcyfqiw.exe	nsis_installer_2

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Cmmtukxcyfqiw.exe

pid process

1400 Cmmtukxcyfqiw.exe
1400 Cmmtukxcyfqiw.exe
1400 Cmmtukxcyfqiw.exe
1400 Cmmtukxcyfqiw.exe

pid	process
1400	Cmmtukxcyfqiw.exe
1400	Cmmtukxcyfqiw.exe
1400	Cmmtukxcyfqiw.exe
1400	Cmmtukxcyfqiw.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

66a7e302e4e91a0d6f19e5dd959d728a176e88e036f764df70fc608d63ee0639.exe

description	pid	process	target process
PID 4484 wrote to memory of 1400	4484	66a7e302e4e91a0d6f19e5dd959d728a176e88e036f764df70fc608d63ee0639.exe	Cmmtukxcyfqiw.exe
PID 4484 wrote to memory of 1400	4484	66a7e302e4e91a0d6f19e5dd959d728a176e88e036f764df70fc608d63ee0639.exe	Cmmtukxcyfqiw.exe
PID 4484 wrote to memory of 1400	4484	66a7e302e4e91a0d6f19e5dd959d728a176e88e036f764df70fc608d63ee0639.exe	Cmmtukxcyfqiw.exe

C:\Users\Admin\AppData\Local\Temp\66a7e302e4e91a0d6f19e5dd959d728a176e88e036f764df70fc608d63ee0639.exe
"C:\Users\Admin\AppData\Local\Temp\66a7e302e4e91a0d6f19e5dd959d728a176e88e036f764df70fc608d63ee0639.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4484

C:\Users\Admin\AppData\Local\Temp\nseDD52.tmp\Cmmtukxcyfqiw.exe
"C:\Users\Admin\AppData\Local\Temp\nseDD52.tmp\Cmmtukxcyfqiw.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:1400

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1400 -s 1528
3⤵
- Program crash
PID:3848

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1400 -ip 1400
1⤵
PID:4104

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Software Discovery

T1518

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\nseDD52.tmp\Cmmtukxcyfqiw.exe

Filesize
8.9MB

MD5
c43ae55f7e02527368e475af7c5dcc90

SHA1
5d3eb1ba5602e5756ef3a99580e490a1a84dd502

SHA256
07960ca59d2f160e365cb6116e8c568a1b40bef19f44f63539ea8768ffa04b93

SHA512
9c1ba16e55dbc496622c74472b1377307d92c8fc345c3f0a9bfa01299c3fb8b2cf3f441a25a929be260ab92af7094918a2f34da6d9773a42009a7ac65da6ac9b

Download Submit
C:\Users\Admin\AppData\Local\Temp\nseDD52.tmp\Cmmtukxcyfqiw.exe

Filesize
8.9MB

MD5
c43ae55f7e02527368e475af7c5dcc90

SHA1
5d3eb1ba5602e5756ef3a99580e490a1a84dd502

SHA256
07960ca59d2f160e365cb6116e8c568a1b40bef19f44f63539ea8768ffa04b93

SHA512
9c1ba16e55dbc496622c74472b1377307d92c8fc345c3f0a9bfa01299c3fb8b2cf3f441a25a929be260ab92af7094918a2f34da6d9773a42009a7ac65da6ac9b

Download Submit
C:\Users\Admin\AppData\Local\Temp\nseDD52.tmp\StdUtils.dll

Filesize
14KB

MD5
21010df9bc37daffcc0b5ae190381d85

SHA1
a8ba022aafc1233894db29e40e569dfc8b280eb9

SHA256
0ebd62de633fa108cf18139be6778fa560680f9f8a755e41c6ab544ab8db5c16

SHA512
95d3dbba6eac144260d5fcc7fcd5fb3afcb59ae62bd2eafc5a1d2190e9b44f8e125290d62fef82ad8799d0072997c57b2fa8a643aba554d0a82bbd3f8eb1403e

Download Submit
C:\Users\Admin\AppData\Local\Temp\nseDD52.tmp\System.dll

Filesize
11KB

MD5
00a0194c20ee912257df53bfe258ee4a

SHA1
d7b4e319bc5119024690dc8230b9cc919b1b86b2

SHA256
dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3

SHA512
3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667

Download Submit
C:\Users\Admin\AppData\Local\Temp\nseDD52.tmp\WrapperUtils.dll

Filesize
57KB

MD5
8ae7e6b7a68402e9edf05c7b0e35e863

SHA1
3a214f5006ba865a4641ac05c79fbf7ac5b77520

SHA256
48210183046a8a10306fee9e681db70c21fa47853eddbac2e3fa4c49cb2ec3dd

SHA512
efb3944322e800e0faff1f7169ef80b9856a7e60d9f8bbfe4a0724cc4d6e096870644faa42863f438a344b28e630ae0e6913e60a83da0ad78475932b63bb99a7

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso74B0.tmp\InstallerUtils.dll

Filesize
806KB

MD5
096793561d51e77b3b02b1038ec308ed

SHA1
3315766567c3ae2c606b79dd423a5298e389e39a

SHA256
4970eb6199b8799170c336b59d9a757e6bff8f79badbeb3185eb84b07c8b526e

SHA512
936c6b3713f46b8ac4fa9675ab1d10428105eb57935fa08d228ada8e2b198fb0313a2bed203b7f49c6437ef8aaf8c8a7d2f07b7b0a7875c93e025b71e7f22315

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso74B0.tmp\InstallerUtils.dll

Filesize
806KB

MD5
096793561d51e77b3b02b1038ec308ed

SHA1
3315766567c3ae2c606b79dd423a5298e389e39a

SHA256
4970eb6199b8799170c336b59d9a757e6bff8f79badbeb3185eb84b07c8b526e

SHA512
936c6b3713f46b8ac4fa9675ab1d10428105eb57935fa08d228ada8e2b198fb0313a2bed203b7f49c6437ef8aaf8c8a7d2f07b7b0a7875c93e025b71e7f22315

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso74B0.tmp\InstallerUtils.dll

Filesize
806KB

MD5
096793561d51e77b3b02b1038ec308ed

SHA1
3315766567c3ae2c606b79dd423a5298e389e39a

SHA256
4970eb6199b8799170c336b59d9a757e6bff8f79badbeb3185eb84b07c8b526e

SHA512
936c6b3713f46b8ac4fa9675ab1d10428105eb57935fa08d228ada8e2b198fb0313a2bed203b7f49c6437ef8aaf8c8a7d2f07b7b0a7875c93e025b71e7f22315

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso74B0.tmp\InstallerUtils.dll

Filesize
806KB

MD5
096793561d51e77b3b02b1038ec308ed

SHA1
3315766567c3ae2c606b79dd423a5298e389e39a

SHA256
4970eb6199b8799170c336b59d9a757e6bff8f79badbeb3185eb84b07c8b526e

SHA512
936c6b3713f46b8ac4fa9675ab1d10428105eb57935fa08d228ada8e2b198fb0313a2bed203b7f49c6437ef8aaf8c8a7d2f07b7b0a7875c93e025b71e7f22315

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso74B0.tmp\InstallerUtils.dll

Filesize
806KB

MD5
096793561d51e77b3b02b1038ec308ed

SHA1
3315766567c3ae2c606b79dd423a5298e389e39a

SHA256
4970eb6199b8799170c336b59d9a757e6bff8f79badbeb3185eb84b07c8b526e

SHA512
936c6b3713f46b8ac4fa9675ab1d10428105eb57935fa08d228ada8e2b198fb0313a2bed203b7f49c6437ef8aaf8c8a7d2f07b7b0a7875c93e025b71e7f22315

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso74B0.tmp\InstallerUtils.dll

Filesize
806KB

MD5
096793561d51e77b3b02b1038ec308ed

SHA1
3315766567c3ae2c606b79dd423a5298e389e39a

SHA256
4970eb6199b8799170c336b59d9a757e6bff8f79badbeb3185eb84b07c8b526e

SHA512
936c6b3713f46b8ac4fa9675ab1d10428105eb57935fa08d228ada8e2b198fb0313a2bed203b7f49c6437ef8aaf8c8a7d2f07b7b0a7875c93e025b71e7f22315

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso74B0.tmp\InstallerUtils2.dll

Filesize
92KB

MD5
73e9088c465e553133f6d6dd95287856

SHA1
2dc69ed83e4108ac14647ed2c221e961ea680c0d

SHA256
2e8eb1afa58eec94e4587d1a95263286c93f1d8e883e6529e0f2558631f4e39a

SHA512
a503b9664024a58710b25028da962efdf702a4ff116bf4316b8b23d0842f73819dfcc07b5ccb4a50283866104aba111c63fef25280bfce7ef91d8ba450d75e3f

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso74B0.tmp\StdUtils.dll

Filesize
14KB

MD5
21010df9bc37daffcc0b5ae190381d85

SHA1
a8ba022aafc1233894db29e40e569dfc8b280eb9

SHA256
0ebd62de633fa108cf18139be6778fa560680f9f8a755e41c6ab544ab8db5c16

SHA512
95d3dbba6eac144260d5fcc7fcd5fb3afcb59ae62bd2eafc5a1d2190e9b44f8e125290d62fef82ad8799d0072997c57b2fa8a643aba554d0a82bbd3f8eb1403e

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso74B0.tmp\System.dll

Filesize
11KB

MD5
00a0194c20ee912257df53bfe258ee4a

SHA1
d7b4e319bc5119024690dc8230b9cc919b1b86b2

SHA256
dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3

SHA512
3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso74B0.tmp\UserInfo.dll

Filesize
4KB

MD5
7579ade7ae1747a31960a228ce02e666

SHA1
8ec8571a296737e819dcf86353a43fcf8ec63351

SHA256
564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5

SHA512
a88bc56e938374c333b0e33cb72951635b5d5a98b9cb2d6785073cbcad23bf4c0f9f69d3b7e87b46c76eb03ced9bb786844ce87656a9e3df4ca24acf43d7a05b

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso74B0.tmp\UserInfo.dll

Filesize
4KB

MD5
7579ade7ae1747a31960a228ce02e666

SHA1
8ec8571a296737e819dcf86353a43fcf8ec63351

SHA256
564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5

SHA512
a88bc56e938374c333b0e33cb72951635b5d5a98b9cb2d6785073cbcad23bf4c0f9f69d3b7e87b46c76eb03ced9bb786844ce87656a9e3df4ca24acf43d7a05b

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso74B0.tmp\md5dll.dll

Filesize
6KB

MD5
0745ff646f5af1f1cdd784c06f40fce9

SHA1
bf7eba06020d7154ce4e35f696bec6e6c966287f

SHA256
fbed2f1160469f42ce97c33ad558201b2b43e3020257f9b2259e3ce295317a70

SHA512
8d31627c719e788b5d0f5f34d4cb175989eaa35aa3335c98f2ba7902c8ae01b23de3ccb9c6eb95945f0b08ef74d456f9f22ca7539df303e1df3f6a7e67b358da

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso74B0.tmp\md5dll.dll

Filesize
6KB

MD5
0745ff646f5af1f1cdd784c06f40fce9

SHA1
bf7eba06020d7154ce4e35f696bec6e6c966287f

SHA256
fbed2f1160469f42ce97c33ad558201b2b43e3020257f9b2259e3ce295317a70

SHA512
8d31627c719e788b5d0f5f34d4cb175989eaa35aa3335c98f2ba7902c8ae01b23de3ccb9c6eb95945f0b08ef74d456f9f22ca7539df303e1df3f6a7e67b358da

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso74B0.tmp\md5dll.dll

Filesize
6KB

MD5
0745ff646f5af1f1cdd784c06f40fce9

SHA1
bf7eba06020d7154ce4e35f696bec6e6c966287f

SHA256
fbed2f1160469f42ce97c33ad558201b2b43e3020257f9b2259e3ce295317a70

SHA512
8d31627c719e788b5d0f5f34d4cb175989eaa35aa3335c98f2ba7902c8ae01b23de3ccb9c6eb95945f0b08ef74d456f9f22ca7539df303e1df3f6a7e67b358da

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso74B0.tmp\md5dll.dll

Filesize
6KB

MD5
0745ff646f5af1f1cdd784c06f40fce9

SHA1
bf7eba06020d7154ce4e35f696bec6e6c966287f

SHA256
fbed2f1160469f42ce97c33ad558201b2b43e3020257f9b2259e3ce295317a70

SHA512
8d31627c719e788b5d0f5f34d4cb175989eaa35aa3335c98f2ba7902c8ae01b23de3ccb9c6eb95945f0b08ef74d456f9f22ca7539df303e1df3f6a7e67b358da

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso74B0.tmp\nsisos.dll

Filesize
5KB

MD5
69806691d649ef1c8703fd9e29231d44

SHA1
e2193fcf5b4863605eec2a5eb17bf84c7ac00166

SHA256
ba79ab7f63f02ed5d5d46b82b11d97dac5b7ef7e9b9a4df926b43ceac18483b6

SHA512
5e5e0319e701d15134a01cb6472c624e271e99891058aef4dfe779c29c73899771a5b6f8b1cd61b543a3b3defeaecaa080c9cc4e76e84038ca08e12084f128eb

Download Submit
C:\Users\Admin\AppData\Local\Temp\nso74B0.tmp\nsisos.dll

Filesize
5KB

MD5
69806691d649ef1c8703fd9e29231d44

SHA1
e2193fcf5b4863605eec2a5eb17bf84c7ac00166

SHA256
ba79ab7f63f02ed5d5d46b82b11d97dac5b7ef7e9b9a4df926b43ceac18483b6

SHA512
5e5e0319e701d15134a01cb6472c624e271e99891058aef4dfe779c29c73899771a5b6f8b1cd61b543a3b3defeaecaa080c9cc4e76e84038ca08e12084f128eb

Download Submit
memory/1400-155-0x0000000002E10000-0x0000000002E19000-memory.dmp

Filesize
36KB

Download
memory/1400-154-0x0000000002E10000-0x0000000002E19000-memory.dmp

Filesize
36KB

Download
memory/1400-156-0x0000000002E10000-0x0000000002E19000-memory.dmp

Filesize
36KB

Download
memory/1400-135-0x0000000000000000-mapping.dmp

Download