cb46821493bc0bed7f48ff7d5d3c3c5f044e546706fd73dc6a504234e90ad83e

Analysis

max time kernel
66s
max time network
34s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
23-11-2022 09:35

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General

Target

cb46821493bc0bed7f48ff7d5d3c3c5f044e546706fd73dc6a504234e90ad83e.exe
Size

8.6MB
MD5

015ea6d8142ce02789927eb2d69d14f9
SHA1

bf3e29183659426b1d539d7639c874a6d7323e0b
SHA256

cb46821493bc0bed7f48ff7d5d3c3c5f044e546706fd73dc6a504234e90ad83e
SHA512

7cf1c7c30766b7c31a4e1668f0b0e77e34f66834fb40466662fe36fbd3b50d47dee41ae23d7510108209bf39fa7e52bc4dae1d0a12fb271fffa8412b0e4eacd3
SSDEEP

196608:XKx0aXrMnn0qMPHpvExwdatd0j/dWO6hKbGUFIzR9vO64yOs:ax0aXrMnLM/pvwwa0j/dWoj2DvxO

Score

9^/10

evasion upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 2 IoCs

Detects file using ACProtect software.

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\nsyE11E.tmp\md5dll.dll	acprotect
\Users\Admin\AppData\Local\Temp\nsyE11E.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:

Znnfkmjvap.exe

pid process

556 Znnfkmjvap.exe

pid	process
556	Znnfkmjvap.exe

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\nsyE11E.tmp\md5dll.dll	upx
\Users\Admin\AppData\Local\Temp\nsyE11E.tmp\md5dll.dll	upx

Loads dropped DLL 22 IoCs

Processes:

cb46821493bc0bed7f48ff7d5d3c3c5f044e546706fd73dc6a504234e90ad83e.exeZnnfkmjvap.exeWerFault.exe

pid	process
1336	cb46821493bc0bed7f48ff7d5d3c3c5f044e546706fd73dc6a504234e90ad83e.exe
1336	cb46821493bc0bed7f48ff7d5d3c3c5f044e546706fd73dc6a504234e90ad83e.exe
1336	cb46821493bc0bed7f48ff7d5d3c3c5f044e546706fd73dc6a504234e90ad83e.exe
1336	cb46821493bc0bed7f48ff7d5d3c3c5f044e546706fd73dc6a504234e90ad83e.exe
556	Znnfkmjvap.exe
556	Znnfkmjvap.exe
556	Znnfkmjvap.exe
556	Znnfkmjvap.exe
556	Znnfkmjvap.exe
556	Znnfkmjvap.exe
556	Znnfkmjvap.exe
556	Znnfkmjvap.exe
556	Znnfkmjvap.exe
556	Znnfkmjvap.exe
556	Znnfkmjvap.exe
556	Znnfkmjvap.exe
1708	WerFault.exe
1708	WerFault.exe
1708	WerFault.exe
1708	WerFault.exe
1708	WerFault.exe
1708	WerFault.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

1708 556 WerFault.exe Znnfkmjvap.exe

pid	pid_target	process	target process
1708	556	WerFault.exe	Znnfkmjvap.exe

NSIS installer 8 IoCs

installer

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\nst3C76.tmp\Znnfkmjvap.exe	nsis_installer_2
C:\Users\Admin\AppData\Local\Temp\nst3C76.tmp\Znnfkmjvap.exe	nsis_installer_2
C:\Users\Admin\AppData\Local\Temp\nst3C76.tmp\Znnfkmjvap.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nst3C76.tmp\Znnfkmjvap.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nst3C76.tmp\Znnfkmjvap.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nst3C76.tmp\Znnfkmjvap.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nst3C76.tmp\Znnfkmjvap.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nst3C76.tmp\Znnfkmjvap.exe	nsis_installer_2

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Znnfkmjvap.exe

pid process

556 Znnfkmjvap.exe
556 Znnfkmjvap.exe

pid	process
556	Znnfkmjvap.exe
556	Znnfkmjvap.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

cb46821493bc0bed7f48ff7d5d3c3c5f044e546706fd73dc6a504234e90ad83e.exeZnnfkmjvap.exe

description	pid	process	target process
PID 1336 wrote to memory of 556	1336	cb46821493bc0bed7f48ff7d5d3c3c5f044e546706fd73dc6a504234e90ad83e.exe	Znnfkmjvap.exe
PID 1336 wrote to memory of 556	1336	cb46821493bc0bed7f48ff7d5d3c3c5f044e546706fd73dc6a504234e90ad83e.exe	Znnfkmjvap.exe
PID 1336 wrote to memory of 556	1336	cb46821493bc0bed7f48ff7d5d3c3c5f044e546706fd73dc6a504234e90ad83e.exe	Znnfkmjvap.exe
PID 1336 wrote to memory of 556	1336	cb46821493bc0bed7f48ff7d5d3c3c5f044e546706fd73dc6a504234e90ad83e.exe	Znnfkmjvap.exe
PID 556 wrote to memory of 1708	556	Znnfkmjvap.exe	WerFault.exe
PID 556 wrote to memory of 1708	556	Znnfkmjvap.exe	WerFault.exe
PID 556 wrote to memory of 1708	556	Znnfkmjvap.exe	WerFault.exe
PID 556 wrote to memory of 1708	556	Znnfkmjvap.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\cb46821493bc0bed7f48ff7d5d3c3c5f044e546706fd73dc6a504234e90ad83e.exe
"C:\Users\Admin\AppData\Local\Temp\cb46821493bc0bed7f48ff7d5d3c3c5f044e546706fd73dc6a504234e90ad83e.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1336

C:\Users\Admin\AppData\Local\Temp\nst3C76.tmp\Znnfkmjvap.exe
"C:\Users\Admin\AppData\Local\Temp\nst3C76.tmp\Znnfkmjvap.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:556

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 556 -s 576
3⤵
- Loads dropped DLL
- Program crash
PID:1708

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\nst3C76.tmp\Znnfkmjvap.exe

Filesize
8.5MB

MD5
e5893364dd80dc2f04999172b03578c7

SHA1
5a23ced7b25c3cda317be281fa900296ae047599

SHA256
b949cc457700adf87e901f575ca530ae353cb6377fb6bdceb010e1ca515bbd73

SHA512
70f96d601525b7d5c9426a96a94d716dd89f101bb84386c830e9c5bced71988ce0cc272dda4a9b51f90a67ec86dd3616e1f5a81def2e129f5e084566ad7d9e9f

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst3C76.tmp\Znnfkmjvap.exe

Filesize
8.5MB

MD5
e5893364dd80dc2f04999172b03578c7

SHA1
5a23ced7b25c3cda317be281fa900296ae047599

SHA256
b949cc457700adf87e901f575ca530ae353cb6377fb6bdceb010e1ca515bbd73

SHA512
70f96d601525b7d5c9426a96a94d716dd89f101bb84386c830e9c5bced71988ce0cc272dda4a9b51f90a67ec86dd3616e1f5a81def2e129f5e084566ad7d9e9f

Download Submit
\Users\Admin\AppData\Local\Temp\nst3C76.tmp\StdUtils.dll

Filesize
14KB

MD5
21010df9bc37daffcc0b5ae190381d85

SHA1
a8ba022aafc1233894db29e40e569dfc8b280eb9

SHA256
0ebd62de633fa108cf18139be6778fa560680f9f8a755e41c6ab544ab8db5c16

SHA512
95d3dbba6eac144260d5fcc7fcd5fb3afcb59ae62bd2eafc5a1d2190e9b44f8e125290d62fef82ad8799d0072997c57b2fa8a643aba554d0a82bbd3f8eb1403e

Download Submit
\Users\Admin\AppData\Local\Temp\nst3C76.tmp\System.dll

Filesize
11KB

MD5
00a0194c20ee912257df53bfe258ee4a

SHA1
d7b4e319bc5119024690dc8230b9cc919b1b86b2

SHA256
dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3

SHA512
3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667

Download Submit
\Users\Admin\AppData\Local\Temp\nst3C76.tmp\WrapperUtils.dll

Filesize
57KB

MD5
7f8d25399b4c1521c15deaf5fcc8a947

SHA1
9fa24e18d6adf975ae6eeafa4a346c5f9759a0d6

SHA256
f5fc72339ebfa50bbac8cfe4a2b889b104325aff935b11a0a6dd42194e47079d

SHA512
7898ac7ae77433071ffebf0f2055862f92455fefa78083c90ea5a0a35560cd79756e25262b3e8e0822e313c28b85ee8d88d52b7944b958617371e12006c497c3

Download Submit
\Users\Admin\AppData\Local\Temp\nst3C76.tmp\Znnfkmjvap.exe

Filesize
8.5MB

MD5
e5893364dd80dc2f04999172b03578c7

SHA1
5a23ced7b25c3cda317be281fa900296ae047599

SHA256
b949cc457700adf87e901f575ca530ae353cb6377fb6bdceb010e1ca515bbd73

SHA512
70f96d601525b7d5c9426a96a94d716dd89f101bb84386c830e9c5bced71988ce0cc272dda4a9b51f90a67ec86dd3616e1f5a81def2e129f5e084566ad7d9e9f

Download Submit
\Users\Admin\AppData\Local\Temp\nst3C76.tmp\Znnfkmjvap.exe

Filesize
8.5MB

MD5
e5893364dd80dc2f04999172b03578c7

SHA1
5a23ced7b25c3cda317be281fa900296ae047599

SHA256
b949cc457700adf87e901f575ca530ae353cb6377fb6bdceb010e1ca515bbd73

SHA512
70f96d601525b7d5c9426a96a94d716dd89f101bb84386c830e9c5bced71988ce0cc272dda4a9b51f90a67ec86dd3616e1f5a81def2e129f5e084566ad7d9e9f

Download Submit
\Users\Admin\AppData\Local\Temp\nst3C76.tmp\Znnfkmjvap.exe

Filesize
8.5MB

MD5
e5893364dd80dc2f04999172b03578c7

SHA1
5a23ced7b25c3cda317be281fa900296ae047599

SHA256
b949cc457700adf87e901f575ca530ae353cb6377fb6bdceb010e1ca515bbd73

SHA512
70f96d601525b7d5c9426a96a94d716dd89f101bb84386c830e9c5bced71988ce0cc272dda4a9b51f90a67ec86dd3616e1f5a81def2e129f5e084566ad7d9e9f

Download Submit
\Users\Admin\AppData\Local\Temp\nst3C76.tmp\Znnfkmjvap.exe

Filesize
8.5MB

MD5
e5893364dd80dc2f04999172b03578c7

SHA1
5a23ced7b25c3cda317be281fa900296ae047599

SHA256
b949cc457700adf87e901f575ca530ae353cb6377fb6bdceb010e1ca515bbd73

SHA512
70f96d601525b7d5c9426a96a94d716dd89f101bb84386c830e9c5bced71988ce0cc272dda4a9b51f90a67ec86dd3616e1f5a81def2e129f5e084566ad7d9e9f

Download Submit
\Users\Admin\AppData\Local\Temp\nst3C76.tmp\Znnfkmjvap.exe

Filesize
8.5MB

MD5
e5893364dd80dc2f04999172b03578c7

SHA1
5a23ced7b25c3cda317be281fa900296ae047599

SHA256
b949cc457700adf87e901f575ca530ae353cb6377fb6bdceb010e1ca515bbd73

SHA512
70f96d601525b7d5c9426a96a94d716dd89f101bb84386c830e9c5bced71988ce0cc272dda4a9b51f90a67ec86dd3616e1f5a81def2e129f5e084566ad7d9e9f

Download Submit
\Users\Admin\AppData\Local\Temp\nst3C76.tmp\Znnfkmjvap.exe

Filesize
8.5MB

MD5
e5893364dd80dc2f04999172b03578c7

SHA1
5a23ced7b25c3cda317be281fa900296ae047599

SHA256
b949cc457700adf87e901f575ca530ae353cb6377fb6bdceb010e1ca515bbd73

SHA512
70f96d601525b7d5c9426a96a94d716dd89f101bb84386c830e9c5bced71988ce0cc272dda4a9b51f90a67ec86dd3616e1f5a81def2e129f5e084566ad7d9e9f

Download Submit
\Users\Admin\AppData\Local\Temp\nsyE11E.tmp\InstallerUtils.dll

Filesize
788KB

MD5
876e938652003e47b606234d7abaf67e

SHA1
643caea098e7b5e940c39b0dfc2854ceaefe01ce

SHA256
042956f41352679c14476af1f961d19904a1786190565dee1d223ddfc23395c7

SHA512
1e7c08db1b203385e3d056c810b64a9ea4717c7c9a594cc69752d3db77b38825a9170b16ad22dc1fd2dee87c9fea4f81b2344673a9155cadb5836b7c0efcd62e

Download Submit
\Users\Admin\AppData\Local\Temp\nsyE11E.tmp\InstallerUtils.dll

Filesize
788KB

MD5
876e938652003e47b606234d7abaf67e

SHA1
643caea098e7b5e940c39b0dfc2854ceaefe01ce

SHA256
042956f41352679c14476af1f961d19904a1786190565dee1d223ddfc23395c7

SHA512
1e7c08db1b203385e3d056c810b64a9ea4717c7c9a594cc69752d3db77b38825a9170b16ad22dc1fd2dee87c9fea4f81b2344673a9155cadb5836b7c0efcd62e

Download Submit
\Users\Admin\AppData\Local\Temp\nsyE11E.tmp\InstallerUtils.dll

Filesize
788KB

MD5
876e938652003e47b606234d7abaf67e

SHA1
643caea098e7b5e940c39b0dfc2854ceaefe01ce

SHA256
042956f41352679c14476af1f961d19904a1786190565dee1d223ddfc23395c7

SHA512
1e7c08db1b203385e3d056c810b64a9ea4717c7c9a594cc69752d3db77b38825a9170b16ad22dc1fd2dee87c9fea4f81b2344673a9155cadb5836b7c0efcd62e

Download Submit
\Users\Admin\AppData\Local\Temp\nsyE11E.tmp\InstallerUtils.dll

Filesize
788KB

MD5
876e938652003e47b606234d7abaf67e

SHA1
643caea098e7b5e940c39b0dfc2854ceaefe01ce

SHA256
042956f41352679c14476af1f961d19904a1786190565dee1d223ddfc23395c7

SHA512
1e7c08db1b203385e3d056c810b64a9ea4717c7c9a594cc69752d3db77b38825a9170b16ad22dc1fd2dee87c9fea4f81b2344673a9155cadb5836b7c0efcd62e

Download Submit
\Users\Admin\AppData\Local\Temp\nsyE11E.tmp\InstallerUtils.dll

Filesize
788KB

MD5
876e938652003e47b606234d7abaf67e

SHA1
643caea098e7b5e940c39b0dfc2854ceaefe01ce

SHA256
042956f41352679c14476af1f961d19904a1786190565dee1d223ddfc23395c7

SHA512
1e7c08db1b203385e3d056c810b64a9ea4717c7c9a594cc69752d3db77b38825a9170b16ad22dc1fd2dee87c9fea4f81b2344673a9155cadb5836b7c0efcd62e

Download Submit
\Users\Admin\AppData\Local\Temp\nsyE11E.tmp\InstallerUtils.dll

Filesize
788KB

MD5
876e938652003e47b606234d7abaf67e

SHA1
643caea098e7b5e940c39b0dfc2854ceaefe01ce

SHA256
042956f41352679c14476af1f961d19904a1786190565dee1d223ddfc23395c7

SHA512
1e7c08db1b203385e3d056c810b64a9ea4717c7c9a594cc69752d3db77b38825a9170b16ad22dc1fd2dee87c9fea4f81b2344673a9155cadb5836b7c0efcd62e

Download Submit
\Users\Admin\AppData\Local\Temp\nsyE11E.tmp\InstallerUtils2.dll

Filesize
107KB

MD5
4644e64e3ea72c32423911f4e9e3f5a2

SHA1
a1314969f057612cb7aec6003205e402efa1b71e

SHA256
837abd3fca7f0ae1202c9e4ece713e6bc19147d1560bbfdb5b2b0b5f1fabaad2

SHA512
b21a3e7253ea11f8368623cd6b3f613e9e900d31e46b17b794d037610638dd43b279de2be2ded4271f6f7ebc5351f920e3842944c5fd65f95baf1e8092ff98ed

Download Submit
\Users\Admin\AppData\Local\Temp\nsyE11E.tmp\StdUtils.dll

Filesize
14KB

MD5
21010df9bc37daffcc0b5ae190381d85

SHA1
a8ba022aafc1233894db29e40e569dfc8b280eb9

SHA256
0ebd62de633fa108cf18139be6778fa560680f9f8a755e41c6ab544ab8db5c16

SHA512
95d3dbba6eac144260d5fcc7fcd5fb3afcb59ae62bd2eafc5a1d2190e9b44f8e125290d62fef82ad8799d0072997c57b2fa8a643aba554d0a82bbd3f8eb1403e

Download Submit
\Users\Admin\AppData\Local\Temp\nsyE11E.tmp\System.dll

Filesize
11KB

MD5
00a0194c20ee912257df53bfe258ee4a

SHA1
d7b4e319bc5119024690dc8230b9cc919b1b86b2

SHA256
dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3

SHA512
3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667

Download Submit
\Users\Admin\AppData\Local\Temp\nsyE11E.tmp\UserInfo.dll

Filesize
4KB

MD5
7579ade7ae1747a31960a228ce02e666

SHA1
8ec8571a296737e819dcf86353a43fcf8ec63351

SHA256
564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5

SHA512
a88bc56e938374c333b0e33cb72951635b5d5a98b9cb2d6785073cbcad23bf4c0f9f69d3b7e87b46c76eb03ced9bb786844ce87656a9e3df4ca24acf43d7a05b

Download Submit
\Users\Admin\AppData\Local\Temp\nsyE11E.tmp\md5dll.dll

Filesize
6KB

MD5
0745ff646f5af1f1cdd784c06f40fce9

SHA1
bf7eba06020d7154ce4e35f696bec6e6c966287f

SHA256
fbed2f1160469f42ce97c33ad558201b2b43e3020257f9b2259e3ce295317a70

SHA512
8d31627c719e788b5d0f5f34d4cb175989eaa35aa3335c98f2ba7902c8ae01b23de3ccb9c6eb95945f0b08ef74d456f9f22ca7539df303e1df3f6a7e67b358da

Download Submit
\Users\Admin\AppData\Local\Temp\nsyE11E.tmp\md5dll.dll

Filesize
6KB

MD5
0745ff646f5af1f1cdd784c06f40fce9

SHA1
bf7eba06020d7154ce4e35f696bec6e6c966287f

SHA256
fbed2f1160469f42ce97c33ad558201b2b43e3020257f9b2259e3ce295317a70

SHA512
8d31627c719e788b5d0f5f34d4cb175989eaa35aa3335c98f2ba7902c8ae01b23de3ccb9c6eb95945f0b08ef74d456f9f22ca7539df303e1df3f6a7e67b358da

Download Submit
\Users\Admin\AppData\Local\Temp\nsyE11E.tmp\nsisos.dll

Filesize
5KB

MD5
69806691d649ef1c8703fd9e29231d44

SHA1
e2193fcf5b4863605eec2a5eb17bf84c7ac00166

SHA256
ba79ab7f63f02ed5d5d46b82b11d97dac5b7ef7e9b9a4df926b43ceac18483b6

SHA512
5e5e0319e701d15134a01cb6472c624e271e99891058aef4dfe779c29c73899771a5b6f8b1cd61b543a3b3defeaecaa080c9cc4e76e84038ca08e12084f128eb

Download Submit
memory/556-78-0x00000000003F0000-0x00000000003F9000-memory.dmp

Filesize
36KB

Download
memory/556-82-0x00000000003F0000-0x00000000003F9000-memory.dmp

Filesize
36KB

Download
memory/556-59-0x0000000000000000-mapping.dmp

Download
memory/556-84-0x00000000003F0000-0x00000000003F9000-memory.dmp

Filesize
36KB

Download
memory/556-85-0x00000000003F0000-0x00000000003F9000-memory.dmp

Filesize
36KB

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memory/1336-54-0x0000000075001000-0x0000000075003000-memory.dmp

Filesize
8KB

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memory/1708-75-0x0000000000000000-mapping.dmp

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