cef65ddd9ef5248512ae501399cd45dce019941ae2a9d9128f1f459214b757ef

Analysis

max time kernel
62s
max time network
31s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
26-11-2022 04:27

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General

Target

cef65ddd9ef5248512ae501399cd45dce019941ae2a9d9128f1f459214b757ef.exe
Size

9.6MB
MD5

c995b197b9722e4e496fe965cd79ce4a
SHA1

ee52aa6f5dd6085004be69756d1e2b8b37c547d0
SHA256

cef65ddd9ef5248512ae501399cd45dce019941ae2a9d9128f1f459214b757ef
SHA512

28cf7cb4bb91357fe24c8d0372b5351c3d01aedcf1eac972b72467d299b6e88f214e942130b33cf2f52b4e017e377ad251e326272dd12798651bff5542882890
SSDEEP

196608:+bGEqu10u/OVmo0u2hFSDy5770AbLCuf23MwRBKlpqw3tqPy:l+OUoihBN7dh23MwnKDqath

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\nsj3B8D.tmp\md5dll.dll	acprotect
\Users\Admin\AppData\Local\Temp\nsj3B8D.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:

Wvtwuunozh.exe

pid process

1736 Wvtwuunozh.exe

pid	process
1736	Wvtwuunozh.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\nsj3B8D.tmp\md5dll.dll	upx
\Users\Admin\AppData\Local\Temp\nsj3B8D.tmp\md5dll.dll	upx

Loads dropped DLL 22 IoCs

Processes:

cef65ddd9ef5248512ae501399cd45dce019941ae2a9d9128f1f459214b757ef.exeWvtwuunozh.exeWerFault.exe

pid	process
628	cef65ddd9ef5248512ae501399cd45dce019941ae2a9d9128f1f459214b757ef.exe
628	cef65ddd9ef5248512ae501399cd45dce019941ae2a9d9128f1f459214b757ef.exe
628	cef65ddd9ef5248512ae501399cd45dce019941ae2a9d9128f1f459214b757ef.exe
628	cef65ddd9ef5248512ae501399cd45dce019941ae2a9d9128f1f459214b757ef.exe
1736	Wvtwuunozh.exe
1736	Wvtwuunozh.exe
1736	Wvtwuunozh.exe
1736	Wvtwuunozh.exe
1736	Wvtwuunozh.exe
1736	Wvtwuunozh.exe
1736	Wvtwuunozh.exe
1736	Wvtwuunozh.exe
1736	Wvtwuunozh.exe
1736	Wvtwuunozh.exe
1736	Wvtwuunozh.exe
1736	Wvtwuunozh.exe
296	WerFault.exe
296	WerFault.exe
296	WerFault.exe
296	WerFault.exe
296	WerFault.exe
296	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

296 1736 WerFault.exe Wvtwuunozh.exe

pid	pid_target	process	target process
296	1736	WerFault.exe	Wvtwuunozh.exe

NSIS installer 8 IoCs

installer

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\nse9A3F.tmp\Wvtwuunozh.exe	nsis_installer_2
C:\Users\Admin\AppData\Local\Temp\nse9A3F.tmp\Wvtwuunozh.exe	nsis_installer_2
C:\Users\Admin\AppData\Local\Temp\nse9A3F.tmp\Wvtwuunozh.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nse9A3F.tmp\Wvtwuunozh.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nse9A3F.tmp\Wvtwuunozh.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nse9A3F.tmp\Wvtwuunozh.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nse9A3F.tmp\Wvtwuunozh.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nse9A3F.tmp\Wvtwuunozh.exe	nsis_installer_2

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Wvtwuunozh.exe

pid process

1736 Wvtwuunozh.exe
1736 Wvtwuunozh.exe

pid	process
1736	Wvtwuunozh.exe
1736	Wvtwuunozh.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

cef65ddd9ef5248512ae501399cd45dce019941ae2a9d9128f1f459214b757ef.exeWvtwuunozh.exe

description	pid	process	target process
PID 628 wrote to memory of 1736	628	cef65ddd9ef5248512ae501399cd45dce019941ae2a9d9128f1f459214b757ef.exe	Wvtwuunozh.exe
PID 628 wrote to memory of 1736	628	cef65ddd9ef5248512ae501399cd45dce019941ae2a9d9128f1f459214b757ef.exe	Wvtwuunozh.exe
PID 628 wrote to memory of 1736	628	cef65ddd9ef5248512ae501399cd45dce019941ae2a9d9128f1f459214b757ef.exe	Wvtwuunozh.exe
PID 628 wrote to memory of 1736	628	cef65ddd9ef5248512ae501399cd45dce019941ae2a9d9128f1f459214b757ef.exe	Wvtwuunozh.exe
PID 1736 wrote to memory of 296	1736	Wvtwuunozh.exe	WerFault.exe
PID 1736 wrote to memory of 296	1736	Wvtwuunozh.exe	WerFault.exe
PID 1736 wrote to memory of 296	1736	Wvtwuunozh.exe	WerFault.exe
PID 1736 wrote to memory of 296	1736	Wvtwuunozh.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\cef65ddd9ef5248512ae501399cd45dce019941ae2a9d9128f1f459214b757ef.exe
"C:\Users\Admin\AppData\Local\Temp\cef65ddd9ef5248512ae501399cd45dce019941ae2a9d9128f1f459214b757ef.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:628

C:\Users\Admin\AppData\Local\Temp\nse9A3F.tmp\Wvtwuunozh.exe
"C:\Users\Admin\AppData\Local\Temp\nse9A3F.tmp\Wvtwuunozh.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1736

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1736 -s 572
3⤵
- Loads dropped DLL
- Program crash
PID:296

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Software Discovery

T1518

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nse9A3F.tmp\Wvtwuunozh.exe
Filesize
9.5MB

MD5
0cb32e3c604e6762605da43f16672388

SHA1
ba51b79a6e918985539e8e858a8915857750340d

SHA256
bf6a93c5967ea3af12bdbc012da8b3e6c3f12d74fa8aa6a4fdd03f2bf549ef50

SHA512
131cee60317a4b1908b3b5fdc7b2c523b9219f08addb39465e5e8118053493ffc42bab35ae544140de71d7064f6b7e2e70cd58ebc0ffb40bc2922db07d0e5c31

Download Submit
C:\Users\Admin\AppData\Local\Temp\nse9A3F.tmp\Wvtwuunozh.exe
Filesize
9.5MB

MD5
0cb32e3c604e6762605da43f16672388

SHA1
ba51b79a6e918985539e8e858a8915857750340d

SHA256
bf6a93c5967ea3af12bdbc012da8b3e6c3f12d74fa8aa6a4fdd03f2bf549ef50

SHA512
131cee60317a4b1908b3b5fdc7b2c523b9219f08addb39465e5e8118053493ffc42bab35ae544140de71d7064f6b7e2e70cd58ebc0ffb40bc2922db07d0e5c31

Download Submit
\Users\Admin\AppData\Local\Temp\nse9A3F.tmp\StdUtils.dll
Filesize
14KB

MD5
21010df9bc37daffcc0b5ae190381d85

SHA1
a8ba022aafc1233894db29e40e569dfc8b280eb9

SHA256
0ebd62de633fa108cf18139be6778fa560680f9f8a755e41c6ab544ab8db5c16

SHA512
95d3dbba6eac144260d5fcc7fcd5fb3afcb59ae62bd2eafc5a1d2190e9b44f8e125290d62fef82ad8799d0072997c57b2fa8a643aba554d0a82bbd3f8eb1403e

Download Submit
\Users\Admin\AppData\Local\Temp\nse9A3F.tmp\System.dll
Filesize
11KB

MD5
00a0194c20ee912257df53bfe258ee4a

SHA1
d7b4e319bc5119024690dc8230b9cc919b1b86b2

SHA256
dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3

SHA512
3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667

Download Submit
\Users\Admin\AppData\Local\Temp\nse9A3F.tmp\WrapperUtils.dll
Filesize
58KB

MD5
25dc056819ac6003689f00caaddcf549

SHA1
80452cc09700a8a990726361c7f8aa8b695d6b41

SHA256
278bb8086ab1a6776ce7bf3a8932dd515c6882baa4d80f0acbd6c82ff226ae3f

SHA512
d3edebc44c1b2fb5baac3039ff7a9d05474e39e30acc942482934219e62b68c01157721a67d6ac0ecb03125621472cfcf2029f971dc79a2848296af9ba80f660

Download Submit
\Users\Admin\AppData\Local\Temp\nse9A3F.tmp\Wvtwuunozh.exe
Filesize
9.5MB

MD5
0cb32e3c604e6762605da43f16672388

SHA1
ba51b79a6e918985539e8e858a8915857750340d

SHA256
bf6a93c5967ea3af12bdbc012da8b3e6c3f12d74fa8aa6a4fdd03f2bf549ef50

SHA512
131cee60317a4b1908b3b5fdc7b2c523b9219f08addb39465e5e8118053493ffc42bab35ae544140de71d7064f6b7e2e70cd58ebc0ffb40bc2922db07d0e5c31

Download Submit
\Users\Admin\AppData\Local\Temp\nse9A3F.tmp\Wvtwuunozh.exe
Filesize
9.5MB

MD5
0cb32e3c604e6762605da43f16672388

SHA1
ba51b79a6e918985539e8e858a8915857750340d

SHA256
bf6a93c5967ea3af12bdbc012da8b3e6c3f12d74fa8aa6a4fdd03f2bf549ef50

SHA512
131cee60317a4b1908b3b5fdc7b2c523b9219f08addb39465e5e8118053493ffc42bab35ae544140de71d7064f6b7e2e70cd58ebc0ffb40bc2922db07d0e5c31

Download Submit
\Users\Admin\AppData\Local\Temp\nse9A3F.tmp\Wvtwuunozh.exe
Filesize
9.5MB

MD5
0cb32e3c604e6762605da43f16672388

SHA1
ba51b79a6e918985539e8e858a8915857750340d

SHA256
bf6a93c5967ea3af12bdbc012da8b3e6c3f12d74fa8aa6a4fdd03f2bf549ef50

SHA512
131cee60317a4b1908b3b5fdc7b2c523b9219f08addb39465e5e8118053493ffc42bab35ae544140de71d7064f6b7e2e70cd58ebc0ffb40bc2922db07d0e5c31

Download Submit
\Users\Admin\AppData\Local\Temp\nse9A3F.tmp\Wvtwuunozh.exe
Filesize
9.5MB

MD5
0cb32e3c604e6762605da43f16672388

SHA1
ba51b79a6e918985539e8e858a8915857750340d

SHA256
bf6a93c5967ea3af12bdbc012da8b3e6c3f12d74fa8aa6a4fdd03f2bf549ef50

SHA512
131cee60317a4b1908b3b5fdc7b2c523b9219f08addb39465e5e8118053493ffc42bab35ae544140de71d7064f6b7e2e70cd58ebc0ffb40bc2922db07d0e5c31

Download Submit
\Users\Admin\AppData\Local\Temp\nse9A3F.tmp\Wvtwuunozh.exe
Filesize
9.5MB

MD5
0cb32e3c604e6762605da43f16672388

SHA1
ba51b79a6e918985539e8e858a8915857750340d

SHA256
bf6a93c5967ea3af12bdbc012da8b3e6c3f12d74fa8aa6a4fdd03f2bf549ef50

SHA512
131cee60317a4b1908b3b5fdc7b2c523b9219f08addb39465e5e8118053493ffc42bab35ae544140de71d7064f6b7e2e70cd58ebc0ffb40bc2922db07d0e5c31

Download Submit
\Users\Admin\AppData\Local\Temp\nse9A3F.tmp\Wvtwuunozh.exe
Filesize
9.5MB

MD5
0cb32e3c604e6762605da43f16672388

SHA1
ba51b79a6e918985539e8e858a8915857750340d

SHA256
bf6a93c5967ea3af12bdbc012da8b3e6c3f12d74fa8aa6a4fdd03f2bf549ef50

SHA512
131cee60317a4b1908b3b5fdc7b2c523b9219f08addb39465e5e8118053493ffc42bab35ae544140de71d7064f6b7e2e70cd58ebc0ffb40bc2922db07d0e5c31

Download Submit
\Users\Admin\AppData\Local\Temp\nsj3B8D.tmp\InstallerUtils.dll
Filesize
824KB

MD5
8686985aa5adf2d7c3d4b2933daaecff

SHA1
db7f9d47c04417f31fcca347763baeee1e4f1125

SHA256
c8324510cea34c680e5c896b8f3f5c73a18519925ab1752fc135cb3f1debe1cf

SHA512
709122efac951e290df1b78f665922698c4aa05f0b3e5f8035503860f8ce2d4fb6b1a098fba060d740f7200b2fce44f33fb1cbc7d20f3f010e878fb97f532246

Download Submit
\Users\Admin\AppData\Local\Temp\nsj3B8D.tmp\InstallerUtils.dll
Filesize
824KB

MD5
8686985aa5adf2d7c3d4b2933daaecff

SHA1
db7f9d47c04417f31fcca347763baeee1e4f1125

SHA256
c8324510cea34c680e5c896b8f3f5c73a18519925ab1752fc135cb3f1debe1cf

SHA512
709122efac951e290df1b78f665922698c4aa05f0b3e5f8035503860f8ce2d4fb6b1a098fba060d740f7200b2fce44f33fb1cbc7d20f3f010e878fb97f532246

Download Submit
\Users\Admin\AppData\Local\Temp\nsj3B8D.tmp\InstallerUtils.dll
Filesize
824KB

MD5
8686985aa5adf2d7c3d4b2933daaecff

SHA1
db7f9d47c04417f31fcca347763baeee1e4f1125

SHA256
c8324510cea34c680e5c896b8f3f5c73a18519925ab1752fc135cb3f1debe1cf

SHA512
709122efac951e290df1b78f665922698c4aa05f0b3e5f8035503860f8ce2d4fb6b1a098fba060d740f7200b2fce44f33fb1cbc7d20f3f010e878fb97f532246

Download Submit
\Users\Admin\AppData\Local\Temp\nsj3B8D.tmp\InstallerUtils.dll
Filesize
824KB

MD5
8686985aa5adf2d7c3d4b2933daaecff

SHA1
db7f9d47c04417f31fcca347763baeee1e4f1125

SHA256
c8324510cea34c680e5c896b8f3f5c73a18519925ab1752fc135cb3f1debe1cf

SHA512
709122efac951e290df1b78f665922698c4aa05f0b3e5f8035503860f8ce2d4fb6b1a098fba060d740f7200b2fce44f33fb1cbc7d20f3f010e878fb97f532246

Download Submit
\Users\Admin\AppData\Local\Temp\nsj3B8D.tmp\InstallerUtils.dll
Filesize
824KB

MD5
8686985aa5adf2d7c3d4b2933daaecff

SHA1
db7f9d47c04417f31fcca347763baeee1e4f1125

SHA256
c8324510cea34c680e5c896b8f3f5c73a18519925ab1752fc135cb3f1debe1cf

SHA512
709122efac951e290df1b78f665922698c4aa05f0b3e5f8035503860f8ce2d4fb6b1a098fba060d740f7200b2fce44f33fb1cbc7d20f3f010e878fb97f532246

Download Submit
\Users\Admin\AppData\Local\Temp\nsj3B8D.tmp\InstallerUtils.dll
Filesize
824KB

MD5
8686985aa5adf2d7c3d4b2933daaecff

SHA1
db7f9d47c04417f31fcca347763baeee1e4f1125

SHA256
c8324510cea34c680e5c896b8f3f5c73a18519925ab1752fc135cb3f1debe1cf

SHA512
709122efac951e290df1b78f665922698c4aa05f0b3e5f8035503860f8ce2d4fb6b1a098fba060d740f7200b2fce44f33fb1cbc7d20f3f010e878fb97f532246

Download Submit
\Users\Admin\AppData\Local\Temp\nsj3B8D.tmp\InstallerUtils2.dll
Filesize
109KB

MD5
997b4ed4957b01bdb133ef843dd8465e

SHA1
8a70cf207d6dd87ec60ebc3fb862b9fa5e83d443

SHA256
0b41d500dcaa36895b39a1c98823c981c0f7533244364ed980dcb07e985e920a

SHA512
7d214a0320af8874649b252f920b5c54fb49c32e8b0ec951393045a7d0cfe1fc0742104ddbf98b5393cc1590f892da665ca05a3b7c58586bd76a56e7fb8b664e

Download Submit
\Users\Admin\AppData\Local\Temp\nsj3B8D.tmp\StdUtils.dll
Filesize
14KB

MD5
21010df9bc37daffcc0b5ae190381d85

SHA1
a8ba022aafc1233894db29e40e569dfc8b280eb9

SHA256
0ebd62de633fa108cf18139be6778fa560680f9f8a755e41c6ab544ab8db5c16

SHA512
95d3dbba6eac144260d5fcc7fcd5fb3afcb59ae62bd2eafc5a1d2190e9b44f8e125290d62fef82ad8799d0072997c57b2fa8a643aba554d0a82bbd3f8eb1403e

Download Submit
\Users\Admin\AppData\Local\Temp\nsj3B8D.tmp\System.dll
Filesize
11KB

MD5
00a0194c20ee912257df53bfe258ee4a

SHA1
d7b4e319bc5119024690dc8230b9cc919b1b86b2

SHA256
dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3

SHA512
3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667

Download Submit
\Users\Admin\AppData\Local\Temp\nsj3B8D.tmp\UserInfo.dll
Filesize
4KB

MD5
7579ade7ae1747a31960a228ce02e666

SHA1
8ec8571a296737e819dcf86353a43fcf8ec63351

SHA256
564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5

SHA512
a88bc56e938374c333b0e33cb72951635b5d5a98b9cb2d6785073cbcad23bf4c0f9f69d3b7e87b46c76eb03ced9bb786844ce87656a9e3df4ca24acf43d7a05b

Download Submit
\Users\Admin\AppData\Local\Temp\nsj3B8D.tmp\md5dll.dll
Filesize
6KB

MD5
0745ff646f5af1f1cdd784c06f40fce9

SHA1
bf7eba06020d7154ce4e35f696bec6e6c966287f

SHA256
fbed2f1160469f42ce97c33ad558201b2b43e3020257f9b2259e3ce295317a70

SHA512
8d31627c719e788b5d0f5f34d4cb175989eaa35aa3335c98f2ba7902c8ae01b23de3ccb9c6eb95945f0b08ef74d456f9f22ca7539df303e1df3f6a7e67b358da

Download Submit
\Users\Admin\AppData\Local\Temp\nsj3B8D.tmp\md5dll.dll
Filesize
6KB

MD5
0745ff646f5af1f1cdd784c06f40fce9

SHA1
bf7eba06020d7154ce4e35f696bec6e6c966287f

SHA256
fbed2f1160469f42ce97c33ad558201b2b43e3020257f9b2259e3ce295317a70

SHA512
8d31627c719e788b5d0f5f34d4cb175989eaa35aa3335c98f2ba7902c8ae01b23de3ccb9c6eb95945f0b08ef74d456f9f22ca7539df303e1df3f6a7e67b358da

Download Submit
\Users\Admin\AppData\Local\Temp\nsj3B8D.tmp\nsisos.dll
Filesize
5KB

MD5
69806691d649ef1c8703fd9e29231d44

SHA1
e2193fcf5b4863605eec2a5eb17bf84c7ac00166

SHA256
ba79ab7f63f02ed5d5d46b82b11d97dac5b7ef7e9b9a4df926b43ceac18483b6

SHA512
5e5e0319e701d15134a01cb6472c624e271e99891058aef4dfe779c29c73899771a5b6f8b1cd61b543a3b3defeaecaa080c9cc4e76e84038ca08e12084f128eb

Download Submit
memory/296-75-0x0000000000000000-mapping.dmp

Download
memory/628-54-0x0000000075C81000-0x0000000075C83000-memory.dmp

Filesize
8KB

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memory/1736-59-0x0000000000000000-mapping.dmp

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memory/1736-81-0x00000000003F0000-0x00000000003F9000-memory.dmp

Filesize
36KB

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memory/1736-82-0x00000000003F0000-0x00000000003F9000-memory.dmp

Filesize
36KB

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memory/1736-84-0x00000000003F0000-0x00000000003F9000-memory.dmp

Filesize
36KB

Download
memory/1736-85-0x00000000003F0000-0x00000000003F9000-memory.dmp

Filesize
36KB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads