6e7c4ae6f303181e28552f20968470392a2cbd32d246c86181faf03e3c76f532

Analysis

max time kernel
42s
max time network
48s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
24-11-2022 04:18

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General

Target

6e7c4ae6f303181e28552f20968470392a2cbd32d246c86181faf03e3c76f532.exe
Size

11.0MB
MD5

3537577f0cd3a40a1aba3192c7a3dc4a
SHA1

226170949d2c7db7f68c28f469cccd88fe5d9a38
SHA256

6e7c4ae6f303181e28552f20968470392a2cbd32d246c86181faf03e3c76f532
SHA512

922e6f567da77922a156ac08162a98490f455278d78c11b947392bfde65fa2ae7e03a488a2921e75c7cd60da7f55c7fcce0c92b170fe4be0b1401b95ff3b73c1
SSDEEP

196608:cz5R33igJmJ84HA2D0QAObIGhQCarK7N/+xw/ccE2CyWMA+7SsyH58tb04j:+5kJeoCYIGpl7N2xQW2v64

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\nsy2EE0.tmp\md5dll.dll	acprotect
\Users\Admin\AppData\Local\Temp\nsy2EE0.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:

Myxbasc.exe

pid process

892 Myxbasc.exe

pid	process
892	Myxbasc.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\nsy2EE0.tmp\md5dll.dll	upx
\Users\Admin\AppData\Local\Temp\nsy2EE0.tmp\md5dll.dll	upx

Loads dropped DLL 22 IoCs

Processes:

6e7c4ae6f303181e28552f20968470392a2cbd32d246c86181faf03e3c76f532.exeMyxbasc.exeWerFault.exe

pid	process
832	6e7c4ae6f303181e28552f20968470392a2cbd32d246c86181faf03e3c76f532.exe
832	6e7c4ae6f303181e28552f20968470392a2cbd32d246c86181faf03e3c76f532.exe
832	6e7c4ae6f303181e28552f20968470392a2cbd32d246c86181faf03e3c76f532.exe
832	6e7c4ae6f303181e28552f20968470392a2cbd32d246c86181faf03e3c76f532.exe
892	Myxbasc.exe
892	Myxbasc.exe
892	Myxbasc.exe
892	Myxbasc.exe
892	Myxbasc.exe
892	Myxbasc.exe
892	Myxbasc.exe
892	Myxbasc.exe
892	Myxbasc.exe
892	Myxbasc.exe
892	Myxbasc.exe
892	Myxbasc.exe
1292	WerFault.exe
1292	WerFault.exe
1292	WerFault.exe
1292	WerFault.exe
1292	WerFault.exe
1292	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

1292 892 WerFault.exe Myxbasc.exe

pid	pid_target	process	target process
1292	892	WerFault.exe	Myxbasc.exe

NSIS installer 8 IoCs

installer

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\nst292.tmp\Myxbasc.exe	nsis_installer_2
C:\Users\Admin\AppData\Local\Temp\nst292.tmp\Myxbasc.exe	nsis_installer_2
C:\Users\Admin\AppData\Local\Temp\nst292.tmp\Myxbasc.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nst292.tmp\Myxbasc.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nst292.tmp\Myxbasc.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nst292.tmp\Myxbasc.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nst292.tmp\Myxbasc.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nst292.tmp\Myxbasc.exe	nsis_installer_2

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Myxbasc.exe

pid process

892 Myxbasc.exe
892 Myxbasc.exe

pid	process
892	Myxbasc.exe
892	Myxbasc.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

6e7c4ae6f303181e28552f20968470392a2cbd32d246c86181faf03e3c76f532.exeMyxbasc.exe

description	pid	process	target process
PID 832 wrote to memory of 892	832	6e7c4ae6f303181e28552f20968470392a2cbd32d246c86181faf03e3c76f532.exe	Myxbasc.exe
PID 832 wrote to memory of 892	832	6e7c4ae6f303181e28552f20968470392a2cbd32d246c86181faf03e3c76f532.exe	Myxbasc.exe
PID 832 wrote to memory of 892	832	6e7c4ae6f303181e28552f20968470392a2cbd32d246c86181faf03e3c76f532.exe	Myxbasc.exe
PID 832 wrote to memory of 892	832	6e7c4ae6f303181e28552f20968470392a2cbd32d246c86181faf03e3c76f532.exe	Myxbasc.exe
PID 892 wrote to memory of 1292	892	Myxbasc.exe	WerFault.exe
PID 892 wrote to memory of 1292	892	Myxbasc.exe	WerFault.exe
PID 892 wrote to memory of 1292	892	Myxbasc.exe	WerFault.exe
PID 892 wrote to memory of 1292	892	Myxbasc.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\6e7c4ae6f303181e28552f20968470392a2cbd32d246c86181faf03e3c76f532.exe
"C:\Users\Admin\AppData\Local\Temp\6e7c4ae6f303181e28552f20968470392a2cbd32d246c86181faf03e3c76f532.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:832

C:\Users\Admin\AppData\Local\Temp\nst292.tmp\Myxbasc.exe
"C:\Users\Admin\AppData\Local\Temp\nst292.tmp\Myxbasc.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:892

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 892 -s 568
3⤵
- Loads dropped DLL
- Program crash
PID:1292

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\nst292.tmp\Myxbasc.exe
Filesize
10.9MB

MD5
5d995ba28cf4a53fb80b91c50c3dab13

SHA1
acd2605d6e26cd16b799d952a1dc7221f344522e

SHA256
9800a697e500d4a2f955dcd9e2d25bf2590d564be89be957e0ef850a241f9f7a

SHA512
2f25e15ce95378b49bed447b21e7fe29a2ef0ca3e8ecf48d5d1348a1eaadf6cd2793a2a0faa045dd1c68009d5f98633d2814d29b76b2a0ee962990d80603dca8

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst292.tmp\Myxbasc.exe
Filesize
10.9MB

MD5
5d995ba28cf4a53fb80b91c50c3dab13

SHA1
acd2605d6e26cd16b799d952a1dc7221f344522e

SHA256
9800a697e500d4a2f955dcd9e2d25bf2590d564be89be957e0ef850a241f9f7a

SHA512
2f25e15ce95378b49bed447b21e7fe29a2ef0ca3e8ecf48d5d1348a1eaadf6cd2793a2a0faa045dd1c68009d5f98633d2814d29b76b2a0ee962990d80603dca8

Download Submit
\Users\Admin\AppData\Local\Temp\nst292.tmp\Myxbasc.exe
Filesize
10.9MB

MD5
5d995ba28cf4a53fb80b91c50c3dab13

SHA1
acd2605d6e26cd16b799d952a1dc7221f344522e

SHA256
9800a697e500d4a2f955dcd9e2d25bf2590d564be89be957e0ef850a241f9f7a

SHA512
2f25e15ce95378b49bed447b21e7fe29a2ef0ca3e8ecf48d5d1348a1eaadf6cd2793a2a0faa045dd1c68009d5f98633d2814d29b76b2a0ee962990d80603dca8

Download Submit
\Users\Admin\AppData\Local\Temp\nst292.tmp\Myxbasc.exe
Filesize
10.9MB

MD5
5d995ba28cf4a53fb80b91c50c3dab13

SHA1
acd2605d6e26cd16b799d952a1dc7221f344522e

SHA256
9800a697e500d4a2f955dcd9e2d25bf2590d564be89be957e0ef850a241f9f7a

SHA512
2f25e15ce95378b49bed447b21e7fe29a2ef0ca3e8ecf48d5d1348a1eaadf6cd2793a2a0faa045dd1c68009d5f98633d2814d29b76b2a0ee962990d80603dca8

Download Submit
\Users\Admin\AppData\Local\Temp\nst292.tmp\Myxbasc.exe
Filesize
10.9MB

MD5
5d995ba28cf4a53fb80b91c50c3dab13

SHA1
acd2605d6e26cd16b799d952a1dc7221f344522e

SHA256
9800a697e500d4a2f955dcd9e2d25bf2590d564be89be957e0ef850a241f9f7a

SHA512
2f25e15ce95378b49bed447b21e7fe29a2ef0ca3e8ecf48d5d1348a1eaadf6cd2793a2a0faa045dd1c68009d5f98633d2814d29b76b2a0ee962990d80603dca8

Download Submit
\Users\Admin\AppData\Local\Temp\nst292.tmp\Myxbasc.exe
Filesize
10.9MB

MD5
5d995ba28cf4a53fb80b91c50c3dab13

SHA1
acd2605d6e26cd16b799d952a1dc7221f344522e

SHA256
9800a697e500d4a2f955dcd9e2d25bf2590d564be89be957e0ef850a241f9f7a

SHA512
2f25e15ce95378b49bed447b21e7fe29a2ef0ca3e8ecf48d5d1348a1eaadf6cd2793a2a0faa045dd1c68009d5f98633d2814d29b76b2a0ee962990d80603dca8

Download Submit
\Users\Admin\AppData\Local\Temp\nst292.tmp\Myxbasc.exe
Filesize
10.9MB

MD5
5d995ba28cf4a53fb80b91c50c3dab13

SHA1
acd2605d6e26cd16b799d952a1dc7221f344522e

SHA256
9800a697e500d4a2f955dcd9e2d25bf2590d564be89be957e0ef850a241f9f7a

SHA512
2f25e15ce95378b49bed447b21e7fe29a2ef0ca3e8ecf48d5d1348a1eaadf6cd2793a2a0faa045dd1c68009d5f98633d2814d29b76b2a0ee962990d80603dca8

Download Submit
\Users\Admin\AppData\Local\Temp\nst292.tmp\Myxbasc.exe
Filesize
10.9MB

MD5
5d995ba28cf4a53fb80b91c50c3dab13

SHA1
acd2605d6e26cd16b799d952a1dc7221f344522e

SHA256
9800a697e500d4a2f955dcd9e2d25bf2590d564be89be957e0ef850a241f9f7a

SHA512
2f25e15ce95378b49bed447b21e7fe29a2ef0ca3e8ecf48d5d1348a1eaadf6cd2793a2a0faa045dd1c68009d5f98633d2814d29b76b2a0ee962990d80603dca8

Download Submit
\Users\Admin\AppData\Local\Temp\nst292.tmp\StdUtils.dll
Filesize
14KB

MD5
21010df9bc37daffcc0b5ae190381d85

SHA1
a8ba022aafc1233894db29e40e569dfc8b280eb9

SHA256
0ebd62de633fa108cf18139be6778fa560680f9f8a755e41c6ab544ab8db5c16

SHA512
95d3dbba6eac144260d5fcc7fcd5fb3afcb59ae62bd2eafc5a1d2190e9b44f8e125290d62fef82ad8799d0072997c57b2fa8a643aba554d0a82bbd3f8eb1403e

Download Submit
\Users\Admin\AppData\Local\Temp\nst292.tmp\System.dll
Filesize
11KB

MD5
00a0194c20ee912257df53bfe258ee4a

SHA1
d7b4e319bc5119024690dc8230b9cc919b1b86b2

SHA256
dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3

SHA512
3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667

Download Submit
\Users\Admin\AppData\Local\Temp\nst292.tmp\WrapperUtils.dll
Filesize
58KB

MD5
855f152822275a8b76fe20900bdf8d80

SHA1
78209ebb4cd0311eab9e765ed56602de85edc4c7

SHA256
c7838f310dc506d3b750e134893f17571a279391a0b6ba26a2ce8c104bbb26e5

SHA512
108474da4c50f75b22316365541fcf89d1f5f74acec8013c280cba27f99a7bb1c49dbfe99fe6726d1205c02f5f444897794312e2675a24cd0df0d3358facfdfe

Download Submit
\Users\Admin\AppData\Local\Temp\nsy2EE0.tmp\InstallerUtils.dll
Filesize
814KB

MD5
78b16e3f06456b9c13e62b5a4ad03b9f

SHA1
88b8c6d38882827d27f142a4f17a63caf589892b

SHA256
6b97a0d2b03a9a428b3606dbc3dcda1ceb78844fe4a13bc7863ac7f7785de39f

SHA512
e53566d478d642ac70859d05539aa95c4bf0ce3246602f9dd92481d6478ed19ba0779c44af2d73d790c2a2d25df454892f348a668fb6b02f1db38c803ec0989b

Download Submit
\Users\Admin\AppData\Local\Temp\nsy2EE0.tmp\InstallerUtils.dll
Filesize
814KB

MD5
78b16e3f06456b9c13e62b5a4ad03b9f

SHA1
88b8c6d38882827d27f142a4f17a63caf589892b

SHA256
6b97a0d2b03a9a428b3606dbc3dcda1ceb78844fe4a13bc7863ac7f7785de39f

SHA512
e53566d478d642ac70859d05539aa95c4bf0ce3246602f9dd92481d6478ed19ba0779c44af2d73d790c2a2d25df454892f348a668fb6b02f1db38c803ec0989b

Download Submit
\Users\Admin\AppData\Local\Temp\nsy2EE0.tmp\InstallerUtils.dll
Filesize
814KB

MD5
78b16e3f06456b9c13e62b5a4ad03b9f

SHA1
88b8c6d38882827d27f142a4f17a63caf589892b

SHA256
6b97a0d2b03a9a428b3606dbc3dcda1ceb78844fe4a13bc7863ac7f7785de39f

SHA512
e53566d478d642ac70859d05539aa95c4bf0ce3246602f9dd92481d6478ed19ba0779c44af2d73d790c2a2d25df454892f348a668fb6b02f1db38c803ec0989b

Download Submit
\Users\Admin\AppData\Local\Temp\nsy2EE0.tmp\InstallerUtils.dll
Filesize
814KB

MD5
78b16e3f06456b9c13e62b5a4ad03b9f

SHA1
88b8c6d38882827d27f142a4f17a63caf589892b

SHA256
6b97a0d2b03a9a428b3606dbc3dcda1ceb78844fe4a13bc7863ac7f7785de39f

SHA512
e53566d478d642ac70859d05539aa95c4bf0ce3246602f9dd92481d6478ed19ba0779c44af2d73d790c2a2d25df454892f348a668fb6b02f1db38c803ec0989b

Download Submit
\Users\Admin\AppData\Local\Temp\nsy2EE0.tmp\InstallerUtils.dll
Filesize
814KB

MD5
78b16e3f06456b9c13e62b5a4ad03b9f

SHA1
88b8c6d38882827d27f142a4f17a63caf589892b

SHA256
6b97a0d2b03a9a428b3606dbc3dcda1ceb78844fe4a13bc7863ac7f7785de39f

SHA512
e53566d478d642ac70859d05539aa95c4bf0ce3246602f9dd92481d6478ed19ba0779c44af2d73d790c2a2d25df454892f348a668fb6b02f1db38c803ec0989b

Download Submit
\Users\Admin\AppData\Local\Temp\nsy2EE0.tmp\InstallerUtils.dll
Filesize
814KB

MD5
78b16e3f06456b9c13e62b5a4ad03b9f

SHA1
88b8c6d38882827d27f142a4f17a63caf589892b

SHA256
6b97a0d2b03a9a428b3606dbc3dcda1ceb78844fe4a13bc7863ac7f7785de39f

SHA512
e53566d478d642ac70859d05539aa95c4bf0ce3246602f9dd92481d6478ed19ba0779c44af2d73d790c2a2d25df454892f348a668fb6b02f1db38c803ec0989b

Download Submit
\Users\Admin\AppData\Local\Temp\nsy2EE0.tmp\InstallerUtils2.dll
Filesize
95KB

MD5
0a3543bca09c541e737b1345c1391635

SHA1
3e6c838e79207c148bb226389cb6c8da66992bdc

SHA256
9969f93383d810f6b123d28122b6d9853d87e3865de9a8ba5c20fd35c73d0389

SHA512
06648a5ff056ec57a2b4f17b9ae7f25ead113252280764a5a124869ea36933d44527f6d2973637a0db062277256e7d26c1b4918d2c9fcfdea4227c8f990f90a4

Download Submit
\Users\Admin\AppData\Local\Temp\nsy2EE0.tmp\StdUtils.dll
Filesize
14KB

MD5
21010df9bc37daffcc0b5ae190381d85

SHA1
a8ba022aafc1233894db29e40e569dfc8b280eb9

SHA256
0ebd62de633fa108cf18139be6778fa560680f9f8a755e41c6ab544ab8db5c16

SHA512
95d3dbba6eac144260d5fcc7fcd5fb3afcb59ae62bd2eafc5a1d2190e9b44f8e125290d62fef82ad8799d0072997c57b2fa8a643aba554d0a82bbd3f8eb1403e

Download Submit
\Users\Admin\AppData\Local\Temp\nsy2EE0.tmp\System.dll
Filesize
11KB

MD5
00a0194c20ee912257df53bfe258ee4a

SHA1
d7b4e319bc5119024690dc8230b9cc919b1b86b2

SHA256
dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3

SHA512
3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667

Download Submit
\Users\Admin\AppData\Local\Temp\nsy2EE0.tmp\UserInfo.dll
Filesize
4KB

MD5
7579ade7ae1747a31960a228ce02e666

SHA1
8ec8571a296737e819dcf86353a43fcf8ec63351

SHA256
564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5

SHA512
a88bc56e938374c333b0e33cb72951635b5d5a98b9cb2d6785073cbcad23bf4c0f9f69d3b7e87b46c76eb03ced9bb786844ce87656a9e3df4ca24acf43d7a05b

Download Submit
\Users\Admin\AppData\Local\Temp\nsy2EE0.tmp\md5dll.dll
Filesize
6KB

MD5
0745ff646f5af1f1cdd784c06f40fce9

SHA1
bf7eba06020d7154ce4e35f696bec6e6c966287f

SHA256
fbed2f1160469f42ce97c33ad558201b2b43e3020257f9b2259e3ce295317a70

SHA512
8d31627c719e788b5d0f5f34d4cb175989eaa35aa3335c98f2ba7902c8ae01b23de3ccb9c6eb95945f0b08ef74d456f9f22ca7539df303e1df3f6a7e67b358da

Download Submit
\Users\Admin\AppData\Local\Temp\nsy2EE0.tmp\md5dll.dll
Filesize
6KB

MD5
0745ff646f5af1f1cdd784c06f40fce9

SHA1
bf7eba06020d7154ce4e35f696bec6e6c966287f

SHA256
fbed2f1160469f42ce97c33ad558201b2b43e3020257f9b2259e3ce295317a70

SHA512
8d31627c719e788b5d0f5f34d4cb175989eaa35aa3335c98f2ba7902c8ae01b23de3ccb9c6eb95945f0b08ef74d456f9f22ca7539df303e1df3f6a7e67b358da

Download Submit
\Users\Admin\AppData\Local\Temp\nsy2EE0.tmp\nsisos.dll
Filesize
5KB

MD5
69806691d649ef1c8703fd9e29231d44

SHA1
e2193fcf5b4863605eec2a5eb17bf84c7ac00166

SHA256
ba79ab7f63f02ed5d5d46b82b11d97dac5b7ef7e9b9a4df926b43ceac18483b6

SHA512
5e5e0319e701d15134a01cb6472c624e271e99891058aef4dfe779c29c73899771a5b6f8b1cd61b543a3b3defeaecaa080c9cc4e76e84038ca08e12084f128eb

Download Submit
memory/832-54-0x0000000075921000-0x0000000075923000-memory.dmp

Filesize
8KB

Download
memory/892-75-0x00000000003E0000-0x00000000003E9000-memory.dmp

Filesize
36KB

Download
memory/892-76-0x00000000003E0000-0x00000000003E9000-memory.dmp

Filesize
36KB

Download
memory/892-59-0x0000000000000000-mapping.dmp

Download
memory/892-84-0x00000000003E0000-0x00000000003E9000-memory.dmp

Filesize
36KB

Download
memory/892-85-0x00000000003E0000-0x00000000003E9000-memory.dmp

Filesize
36KB

Download
memory/1292-77-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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