4c406cdaf903d0c64cfdf5a7f6f8ac4ff2a5edab9d9a6faa6d9625d9b9f4066e

Analysis

max time kernel
144s
max time network
30s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
23-11-2022 09:39

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General

Target

4c406cdaf903d0c64cfdf5a7f6f8ac4ff2a5edab9d9a6faa6d9625d9b9f4066e.exe
Size

10.8MB
MD5

9742264b62aaaec012a7297a22813eb8
SHA1

8d55be5c2c2a678db991c93445ee8284c1a83f8f
SHA256

4c406cdaf903d0c64cfdf5a7f6f8ac4ff2a5edab9d9a6faa6d9625d9b9f4066e
SHA512

439e19808f2f43e5d3cda297019782206853cf56bf37e5b836495c22a80a25641362c95e4d3a19ce0335d4a5ae2d6913ed7dca0d89424bca8fa4a872187f9054
SSDEEP

196608:oFRGCXUS/QjwPIsiEf1kT841R1mz108usWgyr1o6CeLqBd9YAliRdz8nK351:ovfXUiSU0yELXum8Kgc1LlSlI

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\nse2436.tmp\md5dll.dll	acprotect
\Users\Admin\AppData\Local\Temp\nse2436.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:

Wvusmi.exe

pid process

656 Wvusmi.exe

pid	process
656	Wvusmi.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\nse2436.tmp\md5dll.dll	upx
\Users\Admin\AppData\Local\Temp\nse2436.tmp\md5dll.dll	upx

Loads dropped DLL 22 IoCs

Processes:

4c406cdaf903d0c64cfdf5a7f6f8ac4ff2a5edab9d9a6faa6d9625d9b9f4066e.exeWvusmi.exeWerFault.exe

pid	process
1696	4c406cdaf903d0c64cfdf5a7f6f8ac4ff2a5edab9d9a6faa6d9625d9b9f4066e.exe
1696	4c406cdaf903d0c64cfdf5a7f6f8ac4ff2a5edab9d9a6faa6d9625d9b9f4066e.exe
1696	4c406cdaf903d0c64cfdf5a7f6f8ac4ff2a5edab9d9a6faa6d9625d9b9f4066e.exe
1696	4c406cdaf903d0c64cfdf5a7f6f8ac4ff2a5edab9d9a6faa6d9625d9b9f4066e.exe
656	Wvusmi.exe
656	Wvusmi.exe
656	Wvusmi.exe
656	Wvusmi.exe
656	Wvusmi.exe
656	Wvusmi.exe
656	Wvusmi.exe
656	Wvusmi.exe
656	Wvusmi.exe
656	Wvusmi.exe
656	Wvusmi.exe
656	Wvusmi.exe
1704	WerFault.exe
1704	WerFault.exe
1704	WerFault.exe
1704	WerFault.exe
1704	WerFault.exe
1704	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

1704 656 WerFault.exe Wvusmi.exe

pid	pid_target	process	target process
1704	656	WerFault.exe	Wvusmi.exe

NSIS installer 8 IoCs

installer

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\nse8440.tmp\Wvusmi.exe	nsis_installer_2
C:\Users\Admin\AppData\Local\Temp\nse8440.tmp\Wvusmi.exe	nsis_installer_2
C:\Users\Admin\AppData\Local\Temp\nse8440.tmp\Wvusmi.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nse8440.tmp\Wvusmi.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nse8440.tmp\Wvusmi.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nse8440.tmp\Wvusmi.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nse8440.tmp\Wvusmi.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nse8440.tmp\Wvusmi.exe	nsis_installer_2

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Wvusmi.exe

pid process

656 Wvusmi.exe
656 Wvusmi.exe

pid	process
656	Wvusmi.exe
656	Wvusmi.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

4c406cdaf903d0c64cfdf5a7f6f8ac4ff2a5edab9d9a6faa6d9625d9b9f4066e.exeWvusmi.exe

description	pid	process	target process
PID 1696 wrote to memory of 656	1696	4c406cdaf903d0c64cfdf5a7f6f8ac4ff2a5edab9d9a6faa6d9625d9b9f4066e.exe	Wvusmi.exe
PID 1696 wrote to memory of 656	1696	4c406cdaf903d0c64cfdf5a7f6f8ac4ff2a5edab9d9a6faa6d9625d9b9f4066e.exe	Wvusmi.exe
PID 1696 wrote to memory of 656	1696	4c406cdaf903d0c64cfdf5a7f6f8ac4ff2a5edab9d9a6faa6d9625d9b9f4066e.exe	Wvusmi.exe
PID 1696 wrote to memory of 656	1696	4c406cdaf903d0c64cfdf5a7f6f8ac4ff2a5edab9d9a6faa6d9625d9b9f4066e.exe	Wvusmi.exe
PID 656 wrote to memory of 1704	656	Wvusmi.exe	WerFault.exe
PID 656 wrote to memory of 1704	656	Wvusmi.exe	WerFault.exe
PID 656 wrote to memory of 1704	656	Wvusmi.exe	WerFault.exe
PID 656 wrote to memory of 1704	656	Wvusmi.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\4c406cdaf903d0c64cfdf5a7f6f8ac4ff2a5edab9d9a6faa6d9625d9b9f4066e.exe
"C:\Users\Admin\AppData\Local\Temp\4c406cdaf903d0c64cfdf5a7f6f8ac4ff2a5edab9d9a6faa6d9625d9b9f4066e.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1696

C:\Users\Admin\AppData\Local\Temp\nse8440.tmp\Wvusmi.exe
"C:\Users\Admin\AppData\Local\Temp\nse8440.tmp\Wvusmi.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:656

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 656 -s 564
3⤵
- Loads dropped DLL
- Program crash
PID:1704

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\nse8440.tmp\Wvusmi.exe

Filesize
10.6MB

MD5
c946e16abf26718b397879629706b462

SHA1
56c5004041d848b90c7396991b87161425d4588d

SHA256
965a764580e6cf4c03fc0213835d2a9c2e3c9541f5671684a9fd7e0463ad6865

SHA512
a5f8462b886b3238fdebd525696a9d1ef02929d275810e93e06d83090b8ef3db46aae4d43ce75f3f1bb917fb794b78396cb41b46272642d2f90a0718c576132d

Download Submit
C:\Users\Admin\AppData\Local\Temp\nse8440.tmp\Wvusmi.exe

Filesize
10.6MB

MD5
c946e16abf26718b397879629706b462

SHA1
56c5004041d848b90c7396991b87161425d4588d

SHA256
965a764580e6cf4c03fc0213835d2a9c2e3c9541f5671684a9fd7e0463ad6865

SHA512
a5f8462b886b3238fdebd525696a9d1ef02929d275810e93e06d83090b8ef3db46aae4d43ce75f3f1bb917fb794b78396cb41b46272642d2f90a0718c576132d

Download Submit
\Users\Admin\AppData\Local\Temp\nse2436.tmp\InstallerUtils.dll

Filesize
791KB

MD5
2b0f384cdffe65ed7e19bbe3deb512d6

SHA1
02d8964aab30350a0a91d99799fba4c5ee710082

SHA256
17ce0d4e1961f6cd6c04fb30b4e680e009a1664375acfdc3c129aac0eea60da9

SHA512
296bfa4ad1b7d31e8018d03d472b74c6a89c577301fb5a2cac0ceb16b51244d18c9e7a7e74decfb2730a589dcb9a1f4aea8d9b021b1c6a2d6c693b9fd178ff99

Download Submit
\Users\Admin\AppData\Local\Temp\nse2436.tmp\InstallerUtils.dll

Filesize
791KB

MD5
2b0f384cdffe65ed7e19bbe3deb512d6

SHA1
02d8964aab30350a0a91d99799fba4c5ee710082

SHA256
17ce0d4e1961f6cd6c04fb30b4e680e009a1664375acfdc3c129aac0eea60da9

SHA512
296bfa4ad1b7d31e8018d03d472b74c6a89c577301fb5a2cac0ceb16b51244d18c9e7a7e74decfb2730a589dcb9a1f4aea8d9b021b1c6a2d6c693b9fd178ff99

Download Submit
\Users\Admin\AppData\Local\Temp\nse2436.tmp\InstallerUtils.dll

Filesize
791KB

MD5
2b0f384cdffe65ed7e19bbe3deb512d6

SHA1
02d8964aab30350a0a91d99799fba4c5ee710082

SHA256
17ce0d4e1961f6cd6c04fb30b4e680e009a1664375acfdc3c129aac0eea60da9

SHA512
296bfa4ad1b7d31e8018d03d472b74c6a89c577301fb5a2cac0ceb16b51244d18c9e7a7e74decfb2730a589dcb9a1f4aea8d9b021b1c6a2d6c693b9fd178ff99

Download Submit
\Users\Admin\AppData\Local\Temp\nse2436.tmp\InstallerUtils.dll

Filesize
791KB

MD5
2b0f384cdffe65ed7e19bbe3deb512d6

SHA1
02d8964aab30350a0a91d99799fba4c5ee710082

SHA256
17ce0d4e1961f6cd6c04fb30b4e680e009a1664375acfdc3c129aac0eea60da9

SHA512
296bfa4ad1b7d31e8018d03d472b74c6a89c577301fb5a2cac0ceb16b51244d18c9e7a7e74decfb2730a589dcb9a1f4aea8d9b021b1c6a2d6c693b9fd178ff99

Download Submit
\Users\Admin\AppData\Local\Temp\nse2436.tmp\InstallerUtils.dll

Filesize
791KB

MD5
2b0f384cdffe65ed7e19bbe3deb512d6

SHA1
02d8964aab30350a0a91d99799fba4c5ee710082

SHA256
17ce0d4e1961f6cd6c04fb30b4e680e009a1664375acfdc3c129aac0eea60da9

SHA512
296bfa4ad1b7d31e8018d03d472b74c6a89c577301fb5a2cac0ceb16b51244d18c9e7a7e74decfb2730a589dcb9a1f4aea8d9b021b1c6a2d6c693b9fd178ff99

Download Submit
\Users\Admin\AppData\Local\Temp\nse2436.tmp\InstallerUtils.dll

Filesize
791KB

MD5
2b0f384cdffe65ed7e19bbe3deb512d6

SHA1
02d8964aab30350a0a91d99799fba4c5ee710082

SHA256
17ce0d4e1961f6cd6c04fb30b4e680e009a1664375acfdc3c129aac0eea60da9

SHA512
296bfa4ad1b7d31e8018d03d472b74c6a89c577301fb5a2cac0ceb16b51244d18c9e7a7e74decfb2730a589dcb9a1f4aea8d9b021b1c6a2d6c693b9fd178ff99

Download Submit
\Users\Admin\AppData\Local\Temp\nse2436.tmp\InstallerUtils2.dll

Filesize
92KB

MD5
b2ac51006b9377937776506c2dea3729

SHA1
2ee5025c368e1c1819c57aea805bc69609feb2ae

SHA256
cc41fde385335c7c3811253f3ab4aca51245b523b8437af892f77b43f0ada11b

SHA512
e1c25695e622c893b128d8b2c0a0500807e3eac7181bd7c8eeb5cffaea3b15c9ee05be0a8a9fab40418aea61ff2de2f31a4f5e606f3b1c990450b9e11e42b1ea

Download Submit
\Users\Admin\AppData\Local\Temp\nse2436.tmp\StdUtils.dll

Filesize
14KB

MD5
21010df9bc37daffcc0b5ae190381d85

SHA1
a8ba022aafc1233894db29e40e569dfc8b280eb9

SHA256
0ebd62de633fa108cf18139be6778fa560680f9f8a755e41c6ab544ab8db5c16

SHA512
95d3dbba6eac144260d5fcc7fcd5fb3afcb59ae62bd2eafc5a1d2190e9b44f8e125290d62fef82ad8799d0072997c57b2fa8a643aba554d0a82bbd3f8eb1403e

Download Submit
\Users\Admin\AppData\Local\Temp\nse2436.tmp\System.dll

Filesize
11KB

MD5
00a0194c20ee912257df53bfe258ee4a

SHA1
d7b4e319bc5119024690dc8230b9cc919b1b86b2

SHA256
dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3

SHA512
3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667

Download Submit
\Users\Admin\AppData\Local\Temp\nse2436.tmp\UserInfo.dll

Filesize
4KB

MD5
7579ade7ae1747a31960a228ce02e666

SHA1
8ec8571a296737e819dcf86353a43fcf8ec63351

SHA256
564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5

SHA512
a88bc56e938374c333b0e33cb72951635b5d5a98b9cb2d6785073cbcad23bf4c0f9f69d3b7e87b46c76eb03ced9bb786844ce87656a9e3df4ca24acf43d7a05b

Download Submit
\Users\Admin\AppData\Local\Temp\nse2436.tmp\md5dll.dll

Filesize
6KB

MD5
0745ff646f5af1f1cdd784c06f40fce9

SHA1
bf7eba06020d7154ce4e35f696bec6e6c966287f

SHA256
fbed2f1160469f42ce97c33ad558201b2b43e3020257f9b2259e3ce295317a70

SHA512
8d31627c719e788b5d0f5f34d4cb175989eaa35aa3335c98f2ba7902c8ae01b23de3ccb9c6eb95945f0b08ef74d456f9f22ca7539df303e1df3f6a7e67b358da

Download Submit
\Users\Admin\AppData\Local\Temp\nse2436.tmp\md5dll.dll

Filesize
6KB

MD5
0745ff646f5af1f1cdd784c06f40fce9

SHA1
bf7eba06020d7154ce4e35f696bec6e6c966287f

SHA256
fbed2f1160469f42ce97c33ad558201b2b43e3020257f9b2259e3ce295317a70

SHA512
8d31627c719e788b5d0f5f34d4cb175989eaa35aa3335c98f2ba7902c8ae01b23de3ccb9c6eb95945f0b08ef74d456f9f22ca7539df303e1df3f6a7e67b358da

Download Submit
\Users\Admin\AppData\Local\Temp\nse2436.tmp\nsisos.dll

Filesize
5KB

MD5
69806691d649ef1c8703fd9e29231d44

SHA1
e2193fcf5b4863605eec2a5eb17bf84c7ac00166

SHA256
ba79ab7f63f02ed5d5d46b82b11d97dac5b7ef7e9b9a4df926b43ceac18483b6

SHA512
5e5e0319e701d15134a01cb6472c624e271e99891058aef4dfe779c29c73899771a5b6f8b1cd61b543a3b3defeaecaa080c9cc4e76e84038ca08e12084f128eb

Download Submit
\Users\Admin\AppData\Local\Temp\nse8440.tmp\StdUtils.dll

Filesize
14KB

MD5
21010df9bc37daffcc0b5ae190381d85

SHA1
a8ba022aafc1233894db29e40e569dfc8b280eb9

SHA256
0ebd62de633fa108cf18139be6778fa560680f9f8a755e41c6ab544ab8db5c16

SHA512
95d3dbba6eac144260d5fcc7fcd5fb3afcb59ae62bd2eafc5a1d2190e9b44f8e125290d62fef82ad8799d0072997c57b2fa8a643aba554d0a82bbd3f8eb1403e

Download Submit
\Users\Admin\AppData\Local\Temp\nse8440.tmp\System.dll

Filesize
11KB

MD5
00a0194c20ee912257df53bfe258ee4a

SHA1
d7b4e319bc5119024690dc8230b9cc919b1b86b2

SHA256
dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3

SHA512
3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667

Download Submit
\Users\Admin\AppData\Local\Temp\nse8440.tmp\WrapperUtils.dll

Filesize
57KB

MD5
e9ca2738e895ace7506ba5d9bc1f83f5

SHA1
f97fe66d59e57153f469c87d10d65db1968febf1

SHA256
6b5d0a99001065ba2ce3a5097008b2f73a5361f879ebe81d0f3fad2a812454eb

SHA512
77181912b838621223a56043f084de1c6767eda70572941a835bcf5b53a9fd1d711b30f625e928577963557d5d37ba7a5cdde0ef68a9e2c757325be1c5155dec

Download Submit
\Users\Admin\AppData\Local\Temp\nse8440.tmp\Wvusmi.exe

Filesize
10.6MB

MD5
c946e16abf26718b397879629706b462

SHA1
56c5004041d848b90c7396991b87161425d4588d

SHA256
965a764580e6cf4c03fc0213835d2a9c2e3c9541f5671684a9fd7e0463ad6865

SHA512
a5f8462b886b3238fdebd525696a9d1ef02929d275810e93e06d83090b8ef3db46aae4d43ce75f3f1bb917fb794b78396cb41b46272642d2f90a0718c576132d

Download Submit
\Users\Admin\AppData\Local\Temp\nse8440.tmp\Wvusmi.exe

Filesize
10.6MB

MD5
c946e16abf26718b397879629706b462

SHA1
56c5004041d848b90c7396991b87161425d4588d

SHA256
965a764580e6cf4c03fc0213835d2a9c2e3c9541f5671684a9fd7e0463ad6865

SHA512
a5f8462b886b3238fdebd525696a9d1ef02929d275810e93e06d83090b8ef3db46aae4d43ce75f3f1bb917fb794b78396cb41b46272642d2f90a0718c576132d

Download Submit
\Users\Admin\AppData\Local\Temp\nse8440.tmp\Wvusmi.exe

Filesize
10.6MB

MD5
c946e16abf26718b397879629706b462

SHA1
56c5004041d848b90c7396991b87161425d4588d

SHA256
965a764580e6cf4c03fc0213835d2a9c2e3c9541f5671684a9fd7e0463ad6865

SHA512
a5f8462b886b3238fdebd525696a9d1ef02929d275810e93e06d83090b8ef3db46aae4d43ce75f3f1bb917fb794b78396cb41b46272642d2f90a0718c576132d

Download Submit
\Users\Admin\AppData\Local\Temp\nse8440.tmp\Wvusmi.exe

Filesize
10.6MB

MD5
c946e16abf26718b397879629706b462

SHA1
56c5004041d848b90c7396991b87161425d4588d

SHA256
965a764580e6cf4c03fc0213835d2a9c2e3c9541f5671684a9fd7e0463ad6865

SHA512
a5f8462b886b3238fdebd525696a9d1ef02929d275810e93e06d83090b8ef3db46aae4d43ce75f3f1bb917fb794b78396cb41b46272642d2f90a0718c576132d

Download Submit
\Users\Admin\AppData\Local\Temp\nse8440.tmp\Wvusmi.exe

Filesize
10.6MB

MD5
c946e16abf26718b397879629706b462

SHA1
56c5004041d848b90c7396991b87161425d4588d

SHA256
965a764580e6cf4c03fc0213835d2a9c2e3c9541f5671684a9fd7e0463ad6865

SHA512
a5f8462b886b3238fdebd525696a9d1ef02929d275810e93e06d83090b8ef3db46aae4d43ce75f3f1bb917fb794b78396cb41b46272642d2f90a0718c576132d

Download Submit
\Users\Admin\AppData\Local\Temp\nse8440.tmp\Wvusmi.exe

Filesize
10.6MB

MD5
c946e16abf26718b397879629706b462

SHA1
56c5004041d848b90c7396991b87161425d4588d

SHA256
965a764580e6cf4c03fc0213835d2a9c2e3c9541f5671684a9fd7e0463ad6865

SHA512
a5f8462b886b3238fdebd525696a9d1ef02929d275810e93e06d83090b8ef3db46aae4d43ce75f3f1bb917fb794b78396cb41b46272642d2f90a0718c576132d

Download Submit
memory/656-76-0x00000000027A0000-0x00000000027A9000-memory.dmp

Filesize
36KB

Download
memory/656-75-0x00000000027A0000-0x00000000027A9000-memory.dmp

Filesize
36KB

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memory/656-59-0x0000000000000000-mapping.dmp

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memory/656-84-0x00000000027A0000-0x00000000027A9000-memory.dmp

Filesize
36KB

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memory/656-85-0x00000000027A0000-0x00000000027A9000-memory.dmp

Filesize
36KB

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memory/1696-54-0x0000000076941000-0x0000000076943000-memory.dmp

Filesize
8KB

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memory/1704-77-0x0000000000000000-mapping.dmp

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