907f862308a5d936ec5204f47944fc1a94bc52d769aa4d1ce29acf8405fd8efd

Analysis

max time kernel
45s
max time network
51s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
23-11-2022 09:37

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General

Target

907f862308a5d936ec5204f47944fc1a94bc52d769aa4d1ce29acf8405fd8efd.exe
Size

9.0MB
MD5

e906fed5ef533f03ad9c83f5bef9d016
SHA1

c43f8fcf7f4fe99854371006cdc9a2097d1f694b
SHA256

907f862308a5d936ec5204f47944fc1a94bc52d769aa4d1ce29acf8405fd8efd
SHA512

973cc271a55f0f6fdea1bd67b12408adba94b3825851d1ac2fa0637a4b9c6ef5698c6451c2557a086a123525a41813d7f4d48ecf5f2f5c0b850501b3765c5a0b
SSDEEP

196608:PkkxForuqBCm+YfrIfE1MzKW9VhX3hmmfmAwFunKKJmfxb31qA:PVF4hr+YcMdW9VhX3hmmfhJmfxb31q

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\nsd4AB9.tmp\md5dll.dll	acprotect
\Users\Admin\AppData\Local\Temp\nsd4AB9.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:

Kdlnysd.exe

pid process

1560 Kdlnysd.exe

pid	process
1560	Kdlnysd.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\nsd4AB9.tmp\md5dll.dll	upx
\Users\Admin\AppData\Local\Temp\nsd4AB9.tmp\md5dll.dll	upx

Loads dropped DLL 22 IoCs

Processes:

907f862308a5d936ec5204f47944fc1a94bc52d769aa4d1ce29acf8405fd8efd.exeKdlnysd.exeWerFault.exe

pid	process
1744	907f862308a5d936ec5204f47944fc1a94bc52d769aa4d1ce29acf8405fd8efd.exe
1744	907f862308a5d936ec5204f47944fc1a94bc52d769aa4d1ce29acf8405fd8efd.exe
1744	907f862308a5d936ec5204f47944fc1a94bc52d769aa4d1ce29acf8405fd8efd.exe
1744	907f862308a5d936ec5204f47944fc1a94bc52d769aa4d1ce29acf8405fd8efd.exe
1560	Kdlnysd.exe
1560	Kdlnysd.exe
1560	Kdlnysd.exe
1560	Kdlnysd.exe
1560	Kdlnysd.exe
1560	Kdlnysd.exe
1560	Kdlnysd.exe
1560	Kdlnysd.exe
1560	Kdlnysd.exe
1560	Kdlnysd.exe
1560	Kdlnysd.exe
1560	Kdlnysd.exe
904	WerFault.exe
904	WerFault.exe
904	WerFault.exe
904	WerFault.exe
904	WerFault.exe
904	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

904 1560 WerFault.exe Kdlnysd.exe

pid	pid_target	process	target process
904	1560	WerFault.exe	Kdlnysd.exe

NSIS installer 8 IoCs

installer

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\nsdD7B.tmp\Kdlnysd.exe	nsis_installer_2
C:\Users\Admin\AppData\Local\Temp\nsdD7B.tmp\Kdlnysd.exe	nsis_installer_2
C:\Users\Admin\AppData\Local\Temp\nsdD7B.tmp\Kdlnysd.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nsdD7B.tmp\Kdlnysd.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nsdD7B.tmp\Kdlnysd.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nsdD7B.tmp\Kdlnysd.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nsdD7B.tmp\Kdlnysd.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nsdD7B.tmp\Kdlnysd.exe	nsis_installer_2

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Kdlnysd.exe

pid process

1560 Kdlnysd.exe
1560 Kdlnysd.exe

pid	process
1560	Kdlnysd.exe
1560	Kdlnysd.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

907f862308a5d936ec5204f47944fc1a94bc52d769aa4d1ce29acf8405fd8efd.exeKdlnysd.exe

description	pid	process	target process
PID 1744 wrote to memory of 1560	1744	907f862308a5d936ec5204f47944fc1a94bc52d769aa4d1ce29acf8405fd8efd.exe	Kdlnysd.exe
PID 1744 wrote to memory of 1560	1744	907f862308a5d936ec5204f47944fc1a94bc52d769aa4d1ce29acf8405fd8efd.exe	Kdlnysd.exe
PID 1744 wrote to memory of 1560	1744	907f862308a5d936ec5204f47944fc1a94bc52d769aa4d1ce29acf8405fd8efd.exe	Kdlnysd.exe
PID 1744 wrote to memory of 1560	1744	907f862308a5d936ec5204f47944fc1a94bc52d769aa4d1ce29acf8405fd8efd.exe	Kdlnysd.exe
PID 1560 wrote to memory of 904	1560	Kdlnysd.exe	WerFault.exe
PID 1560 wrote to memory of 904	1560	Kdlnysd.exe	WerFault.exe
PID 1560 wrote to memory of 904	1560	Kdlnysd.exe	WerFault.exe
PID 1560 wrote to memory of 904	1560	Kdlnysd.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\907f862308a5d936ec5204f47944fc1a94bc52d769aa4d1ce29acf8405fd8efd.exe
"C:\Users\Admin\AppData\Local\Temp\907f862308a5d936ec5204f47944fc1a94bc52d769aa4d1ce29acf8405fd8efd.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1744

C:\Users\Admin\AppData\Local\Temp\nsdD7B.tmp\Kdlnysd.exe
"C:\Users\Admin\AppData\Local\Temp\nsdD7B.tmp\Kdlnysd.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1560

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1560 -s 560
3⤵
- Loads dropped DLL
- Program crash
PID:904

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\nsdD7B.tmp\Kdlnysd.exe
Filesize
8.8MB

MD5
662e2ed1170d4b2e63cb4f7170f72ef9

SHA1
679cfe48c70fda586904c3171b2e660a9f02131a

SHA256
b33a9a2c118a023c3eb2b8e1d9a5e8f6c6d23f2e51e39eec2ee92b5c8ba30d8d

SHA512
a6a4a90c3fcdba3d80564d5fb37c9ad74fc993c17d8f3a38bc8a22b8bdbb670f5e0f46788696ab03c7e57008036081d513d2f958e1e4ff4abbf16c7daad76c8e

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsdD7B.tmp\Kdlnysd.exe
Filesize
8.8MB

MD5
662e2ed1170d4b2e63cb4f7170f72ef9

SHA1
679cfe48c70fda586904c3171b2e660a9f02131a

SHA256
b33a9a2c118a023c3eb2b8e1d9a5e8f6c6d23f2e51e39eec2ee92b5c8ba30d8d

SHA512
a6a4a90c3fcdba3d80564d5fb37c9ad74fc993c17d8f3a38bc8a22b8bdbb670f5e0f46788696ab03c7e57008036081d513d2f958e1e4ff4abbf16c7daad76c8e

Download Submit
\Users\Admin\AppData\Local\Temp\nsd4AB9.tmp\InstallerUtils.dll
Filesize
824KB

MD5
e7f21e080dbf5f77b09165cc31507201

SHA1
1cc9ed17eee2749182b010f664c3efc50362b49b

SHA256
b69e8730a9637869d99390f6bec032816faf1ee888aab72ef68bde98535ba76b

SHA512
2ea772446620a886afed44fedf9b3003c73c3fa65d7320e2ff30d873ee47161e9eae40742cc95424356c0899c61f544286d7c2a24adee55d69cf2344b64b27b4

Download Submit
\Users\Admin\AppData\Local\Temp\nsd4AB9.tmp\InstallerUtils.dll
Filesize
824KB

MD5
e7f21e080dbf5f77b09165cc31507201

SHA1
1cc9ed17eee2749182b010f664c3efc50362b49b

SHA256
b69e8730a9637869d99390f6bec032816faf1ee888aab72ef68bde98535ba76b

SHA512
2ea772446620a886afed44fedf9b3003c73c3fa65d7320e2ff30d873ee47161e9eae40742cc95424356c0899c61f544286d7c2a24adee55d69cf2344b64b27b4

Download Submit
\Users\Admin\AppData\Local\Temp\nsd4AB9.tmp\InstallerUtils.dll
Filesize
824KB

MD5
e7f21e080dbf5f77b09165cc31507201

SHA1
1cc9ed17eee2749182b010f664c3efc50362b49b

SHA256
b69e8730a9637869d99390f6bec032816faf1ee888aab72ef68bde98535ba76b

SHA512
2ea772446620a886afed44fedf9b3003c73c3fa65d7320e2ff30d873ee47161e9eae40742cc95424356c0899c61f544286d7c2a24adee55d69cf2344b64b27b4

Download Submit
\Users\Admin\AppData\Local\Temp\nsd4AB9.tmp\InstallerUtils.dll
Filesize
824KB

MD5
e7f21e080dbf5f77b09165cc31507201

SHA1
1cc9ed17eee2749182b010f664c3efc50362b49b

SHA256
b69e8730a9637869d99390f6bec032816faf1ee888aab72ef68bde98535ba76b

SHA512
2ea772446620a886afed44fedf9b3003c73c3fa65d7320e2ff30d873ee47161e9eae40742cc95424356c0899c61f544286d7c2a24adee55d69cf2344b64b27b4

Download Submit
\Users\Admin\AppData\Local\Temp\nsd4AB9.tmp\InstallerUtils.dll
Filesize
824KB

MD5
e7f21e080dbf5f77b09165cc31507201

SHA1
1cc9ed17eee2749182b010f664c3efc50362b49b

SHA256
b69e8730a9637869d99390f6bec032816faf1ee888aab72ef68bde98535ba76b

SHA512
2ea772446620a886afed44fedf9b3003c73c3fa65d7320e2ff30d873ee47161e9eae40742cc95424356c0899c61f544286d7c2a24adee55d69cf2344b64b27b4

Download Submit
\Users\Admin\AppData\Local\Temp\nsd4AB9.tmp\InstallerUtils.dll
Filesize
824KB

MD5
e7f21e080dbf5f77b09165cc31507201

SHA1
1cc9ed17eee2749182b010f664c3efc50362b49b

SHA256
b69e8730a9637869d99390f6bec032816faf1ee888aab72ef68bde98535ba76b

SHA512
2ea772446620a886afed44fedf9b3003c73c3fa65d7320e2ff30d873ee47161e9eae40742cc95424356c0899c61f544286d7c2a24adee55d69cf2344b64b27b4

Download Submit
\Users\Admin\AppData\Local\Temp\nsd4AB9.tmp\InstallerUtils2.dll
Filesize
107KB

MD5
27dea2f34c348ae3bb7afeaf5e4d5ace

SHA1
35c31aaa753f95ddd1035c6a90ae934eceb07be4

SHA256
335d1520ff712d77abcce4cf664ff26355f8df5a7641b6d067a0d4a0eb603115

SHA512
2e8dba74e1a50f428f0b5d46fa365fa605fe07fb7b61566d2b56825e5a56db013119d62cf1ece3075afe50cc103b441161536c0c005f801c8b8db38720818d75

Download Submit
\Users\Admin\AppData\Local\Temp\nsd4AB9.tmp\StdUtils.dll
Filesize
14KB

MD5
21010df9bc37daffcc0b5ae190381d85

SHA1
a8ba022aafc1233894db29e40e569dfc8b280eb9

SHA256
0ebd62de633fa108cf18139be6778fa560680f9f8a755e41c6ab544ab8db5c16

SHA512
95d3dbba6eac144260d5fcc7fcd5fb3afcb59ae62bd2eafc5a1d2190e9b44f8e125290d62fef82ad8799d0072997c57b2fa8a643aba554d0a82bbd3f8eb1403e

Download Submit
\Users\Admin\AppData\Local\Temp\nsd4AB9.tmp\System.dll
Filesize
11KB

MD5
00a0194c20ee912257df53bfe258ee4a

SHA1
d7b4e319bc5119024690dc8230b9cc919b1b86b2

SHA256
dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3

SHA512
3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667

Download Submit
\Users\Admin\AppData\Local\Temp\nsd4AB9.tmp\UserInfo.dll
Filesize
4KB

MD5
7579ade7ae1747a31960a228ce02e666

SHA1
8ec8571a296737e819dcf86353a43fcf8ec63351

SHA256
564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5

SHA512
a88bc56e938374c333b0e33cb72951635b5d5a98b9cb2d6785073cbcad23bf4c0f9f69d3b7e87b46c76eb03ced9bb786844ce87656a9e3df4ca24acf43d7a05b

Download Submit
\Users\Admin\AppData\Local\Temp\nsd4AB9.tmp\md5dll.dll
Filesize
6KB

MD5
0745ff646f5af1f1cdd784c06f40fce9

SHA1
bf7eba06020d7154ce4e35f696bec6e6c966287f

SHA256
fbed2f1160469f42ce97c33ad558201b2b43e3020257f9b2259e3ce295317a70

SHA512
8d31627c719e788b5d0f5f34d4cb175989eaa35aa3335c98f2ba7902c8ae01b23de3ccb9c6eb95945f0b08ef74d456f9f22ca7539df303e1df3f6a7e67b358da

Download Submit
\Users\Admin\AppData\Local\Temp\nsd4AB9.tmp\md5dll.dll
Filesize
6KB

MD5
0745ff646f5af1f1cdd784c06f40fce9

SHA1
bf7eba06020d7154ce4e35f696bec6e6c966287f

SHA256
fbed2f1160469f42ce97c33ad558201b2b43e3020257f9b2259e3ce295317a70

SHA512
8d31627c719e788b5d0f5f34d4cb175989eaa35aa3335c98f2ba7902c8ae01b23de3ccb9c6eb95945f0b08ef74d456f9f22ca7539df303e1df3f6a7e67b358da

Download Submit
\Users\Admin\AppData\Local\Temp\nsd4AB9.tmp\nsisos.dll
Filesize
5KB

MD5
69806691d649ef1c8703fd9e29231d44

SHA1
e2193fcf5b4863605eec2a5eb17bf84c7ac00166

SHA256
ba79ab7f63f02ed5d5d46b82b11d97dac5b7ef7e9b9a4df926b43ceac18483b6

SHA512
5e5e0319e701d15134a01cb6472c624e271e99891058aef4dfe779c29c73899771a5b6f8b1cd61b543a3b3defeaecaa080c9cc4e76e84038ca08e12084f128eb

Download Submit
\Users\Admin\AppData\Local\Temp\nsdD7B.tmp\Kdlnysd.exe
Filesize
8.8MB

MD5
662e2ed1170d4b2e63cb4f7170f72ef9

SHA1
679cfe48c70fda586904c3171b2e660a9f02131a

SHA256
b33a9a2c118a023c3eb2b8e1d9a5e8f6c6d23f2e51e39eec2ee92b5c8ba30d8d

SHA512
a6a4a90c3fcdba3d80564d5fb37c9ad74fc993c17d8f3a38bc8a22b8bdbb670f5e0f46788696ab03c7e57008036081d513d2f958e1e4ff4abbf16c7daad76c8e

Download Submit
\Users\Admin\AppData\Local\Temp\nsdD7B.tmp\Kdlnysd.exe
Filesize
8.8MB

MD5
662e2ed1170d4b2e63cb4f7170f72ef9

SHA1
679cfe48c70fda586904c3171b2e660a9f02131a

SHA256
b33a9a2c118a023c3eb2b8e1d9a5e8f6c6d23f2e51e39eec2ee92b5c8ba30d8d

SHA512
a6a4a90c3fcdba3d80564d5fb37c9ad74fc993c17d8f3a38bc8a22b8bdbb670f5e0f46788696ab03c7e57008036081d513d2f958e1e4ff4abbf16c7daad76c8e

Download Submit
\Users\Admin\AppData\Local\Temp\nsdD7B.tmp\Kdlnysd.exe
Filesize
8.8MB

MD5
662e2ed1170d4b2e63cb4f7170f72ef9

SHA1
679cfe48c70fda586904c3171b2e660a9f02131a

SHA256
b33a9a2c118a023c3eb2b8e1d9a5e8f6c6d23f2e51e39eec2ee92b5c8ba30d8d

SHA512
a6a4a90c3fcdba3d80564d5fb37c9ad74fc993c17d8f3a38bc8a22b8bdbb670f5e0f46788696ab03c7e57008036081d513d2f958e1e4ff4abbf16c7daad76c8e

Download Submit
\Users\Admin\AppData\Local\Temp\nsdD7B.tmp\Kdlnysd.exe
Filesize
8.8MB

MD5
662e2ed1170d4b2e63cb4f7170f72ef9

SHA1
679cfe48c70fda586904c3171b2e660a9f02131a

SHA256
b33a9a2c118a023c3eb2b8e1d9a5e8f6c6d23f2e51e39eec2ee92b5c8ba30d8d

SHA512
a6a4a90c3fcdba3d80564d5fb37c9ad74fc993c17d8f3a38bc8a22b8bdbb670f5e0f46788696ab03c7e57008036081d513d2f958e1e4ff4abbf16c7daad76c8e

Download Submit
\Users\Admin\AppData\Local\Temp\nsdD7B.tmp\Kdlnysd.exe
Filesize
8.8MB

MD5
662e2ed1170d4b2e63cb4f7170f72ef9

SHA1
679cfe48c70fda586904c3171b2e660a9f02131a

SHA256
b33a9a2c118a023c3eb2b8e1d9a5e8f6c6d23f2e51e39eec2ee92b5c8ba30d8d

SHA512
a6a4a90c3fcdba3d80564d5fb37c9ad74fc993c17d8f3a38bc8a22b8bdbb670f5e0f46788696ab03c7e57008036081d513d2f958e1e4ff4abbf16c7daad76c8e

Download Submit
\Users\Admin\AppData\Local\Temp\nsdD7B.tmp\Kdlnysd.exe
Filesize
8.8MB

MD5
662e2ed1170d4b2e63cb4f7170f72ef9

SHA1
679cfe48c70fda586904c3171b2e660a9f02131a

SHA256
b33a9a2c118a023c3eb2b8e1d9a5e8f6c6d23f2e51e39eec2ee92b5c8ba30d8d

SHA512
a6a4a90c3fcdba3d80564d5fb37c9ad74fc993c17d8f3a38bc8a22b8bdbb670f5e0f46788696ab03c7e57008036081d513d2f958e1e4ff4abbf16c7daad76c8e

Download Submit
\Users\Admin\AppData\Local\Temp\nsdD7B.tmp\StdUtils.dll
Filesize
14KB

MD5
21010df9bc37daffcc0b5ae190381d85

SHA1
a8ba022aafc1233894db29e40e569dfc8b280eb9

SHA256
0ebd62de633fa108cf18139be6778fa560680f9f8a755e41c6ab544ab8db5c16

SHA512
95d3dbba6eac144260d5fcc7fcd5fb3afcb59ae62bd2eafc5a1d2190e9b44f8e125290d62fef82ad8799d0072997c57b2fa8a643aba554d0a82bbd3f8eb1403e

Download Submit
\Users\Admin\AppData\Local\Temp\nsdD7B.tmp\System.dll
Filesize
11KB

MD5
00a0194c20ee912257df53bfe258ee4a

SHA1
d7b4e319bc5119024690dc8230b9cc919b1b86b2

SHA256
dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3

SHA512
3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667

Download Submit
\Users\Admin\AppData\Local\Temp\nsdD7B.tmp\WrapperUtils.dll
Filesize
57KB

MD5
d65bf09ade6a0b66c7a555340f4deb4b

SHA1
dbc8d1aa7f5d6dfc504d3b68c45467df64810313

SHA256
e23908b1771540e76557a2142e3c7e7fa275d27cca5ec32f55f9c0e1c1bfa66a

SHA512
6838d47c6bec0ffbe87c5dfe0d83b66448a3a1e5cf87908ee0f2808ee967e6165e9a0fb44357bf7ab5ea405d6f10202cedd8531d3e9c11c91641d8707b40bf9e

Download Submit
memory/904-77-0x0000000000000000-mapping.dmp

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memory/1560-76-0x0000000000020000-0x0000000000029000-memory.dmp

Filesize
36KB

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memory/1560-74-0x0000000000020000-0x0000000000029000-memory.dmp

Filesize
36KB

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memory/1560-59-0x0000000000000000-mapping.dmp

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memory/1560-85-0x0000000000020000-0x0000000000029000-memory.dmp

Filesize
36KB

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memory/1560-84-0x0000000000020000-0x0000000000029000-memory.dmp

Filesize
36KB

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memory/1744-54-0x0000000074DA1000-0x0000000074DA3000-memory.dmp

Filesize
8KB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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