923cbfb68c3b53fbe63acf762811f086e4c420e71aa0020f7859827e7a689794

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 09:36

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General

Target

923cbfb68c3b53fbe63acf762811f086e4c420e71aa0020f7859827e7a689794.exe
Size

11.8MB
MD5

eb79a25f2d11ead004c85bab100dccd1
SHA1

15360b3ae9dcf40d8ff8d29d3b1d5f6f4ffdea98
SHA256

923cbfb68c3b53fbe63acf762811f086e4c420e71aa0020f7859827e7a689794
SHA512

55f9897e705c1e7bf833ebfe86cd2336b70d2795667e8746ce2b7a9d4b46d50a0c2d1ecb78c24808f2d941649a88407e50c6a0b89d123eb9a81d44645aaa5c82
SSDEEP

196608:dQqJLmNzCpGIg+HCoChod5qi1EO69JmDXyCs+s4WGuu1iG/FO++h4Ge7e8rvPZeX:dQqJ7pAOTCS5qaEO6gXRUEOCPHwOS

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\nsj5B4D.tmp\md5dll.dll	acprotect
\Users\Admin\AppData\Local\Temp\nsj5B4D.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:

Tgrbezocx.exe

pid process

688 Tgrbezocx.exe

pid	process
688	Tgrbezocx.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\nsj5B4D.tmp\md5dll.dll	upx
\Users\Admin\AppData\Local\Temp\nsj5B4D.tmp\md5dll.dll	upx

Loads dropped DLL 22 IoCs

Processes:

923cbfb68c3b53fbe63acf762811f086e4c420e71aa0020f7859827e7a689794.exeTgrbezocx.exeWerFault.exe

pid	process
1396	923cbfb68c3b53fbe63acf762811f086e4c420e71aa0020f7859827e7a689794.exe
1396	923cbfb68c3b53fbe63acf762811f086e4c420e71aa0020f7859827e7a689794.exe
1396	923cbfb68c3b53fbe63acf762811f086e4c420e71aa0020f7859827e7a689794.exe
1396	923cbfb68c3b53fbe63acf762811f086e4c420e71aa0020f7859827e7a689794.exe
688	Tgrbezocx.exe
688	Tgrbezocx.exe
688	Tgrbezocx.exe
688	Tgrbezocx.exe
688	Tgrbezocx.exe
688	Tgrbezocx.exe
688	Tgrbezocx.exe
688	Tgrbezocx.exe
688	Tgrbezocx.exe
688	Tgrbezocx.exe
688	Tgrbezocx.exe
688	Tgrbezocx.exe
1720	WerFault.exe
1720	WerFault.exe
1720	WerFault.exe
1720	WerFault.exe
1720	WerFault.exe
1720	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

1720 688 WerFault.exe Tgrbezocx.exe

pid	pid_target	process	target process
1720	688	WerFault.exe	Tgrbezocx.exe

NSIS installer 8 IoCs

installer

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\nst196D.tmp\Tgrbezocx.exe	nsis_installer_2
C:\Users\Admin\AppData\Local\Temp\nst196D.tmp\Tgrbezocx.exe	nsis_installer_2
C:\Users\Admin\AppData\Local\Temp\nst196D.tmp\Tgrbezocx.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nst196D.tmp\Tgrbezocx.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nst196D.tmp\Tgrbezocx.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nst196D.tmp\Tgrbezocx.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nst196D.tmp\Tgrbezocx.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nst196D.tmp\Tgrbezocx.exe	nsis_installer_2

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Tgrbezocx.exe

pid process

688 Tgrbezocx.exe
688 Tgrbezocx.exe

pid	process
688	Tgrbezocx.exe
688	Tgrbezocx.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

923cbfb68c3b53fbe63acf762811f086e4c420e71aa0020f7859827e7a689794.exeTgrbezocx.exe

description	pid	process	target process
PID 1396 wrote to memory of 688	1396	923cbfb68c3b53fbe63acf762811f086e4c420e71aa0020f7859827e7a689794.exe	Tgrbezocx.exe
PID 1396 wrote to memory of 688	1396	923cbfb68c3b53fbe63acf762811f086e4c420e71aa0020f7859827e7a689794.exe	Tgrbezocx.exe
PID 1396 wrote to memory of 688	1396	923cbfb68c3b53fbe63acf762811f086e4c420e71aa0020f7859827e7a689794.exe	Tgrbezocx.exe
PID 1396 wrote to memory of 688	1396	923cbfb68c3b53fbe63acf762811f086e4c420e71aa0020f7859827e7a689794.exe	Tgrbezocx.exe
PID 688 wrote to memory of 1720	688	Tgrbezocx.exe	WerFault.exe
PID 688 wrote to memory of 1720	688	Tgrbezocx.exe	WerFault.exe
PID 688 wrote to memory of 1720	688	Tgrbezocx.exe	WerFault.exe
PID 688 wrote to memory of 1720	688	Tgrbezocx.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\923cbfb68c3b53fbe63acf762811f086e4c420e71aa0020f7859827e7a689794.exe
"C:\Users\Admin\AppData\Local\Temp\923cbfb68c3b53fbe63acf762811f086e4c420e71aa0020f7859827e7a689794.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1396

C:\Users\Admin\AppData\Local\Temp\nst196D.tmp\Tgrbezocx.exe
"C:\Users\Admin\AppData\Local\Temp\nst196D.tmp\Tgrbezocx.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 688 -s 568
3⤵
- Loads dropped DLL
- Program crash
PID:1720

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\nst196D.tmp\Tgrbezocx.exe

Filesize
11.5MB

MD5
cde9ae84ea6a878978e41c90b102a237

SHA1
15ef284b27a243462580fe3a544fc7fd5d9ca585

SHA256
4ff708b1278fe963cda6233dca6b935687fca2e659d05ea133080d46c5cad7c0

SHA512
c3059294b4c5047d79e6a969a102f1addcf746e32cf54b83b89b9354ad568fc5ce12ca1a512b8ee0930115995c4b366a01b6be37fec76d6266b1972d5a26d782

Download Submit
C:\Users\Admin\AppData\Local\Temp\nst196D.tmp\Tgrbezocx.exe

Filesize
11.5MB

MD5
cde9ae84ea6a878978e41c90b102a237

SHA1
15ef284b27a243462580fe3a544fc7fd5d9ca585

SHA256
4ff708b1278fe963cda6233dca6b935687fca2e659d05ea133080d46c5cad7c0

SHA512
c3059294b4c5047d79e6a969a102f1addcf746e32cf54b83b89b9354ad568fc5ce12ca1a512b8ee0930115995c4b366a01b6be37fec76d6266b1972d5a26d782

Download Submit
\Users\Admin\AppData\Local\Temp\nsj5B4D.tmp\InstallerUtils.dll

Filesize
830KB

MD5
3d8a0b46edabaea4438fe0d8c7b4653a

SHA1
258197826ee429b826ca57f58d522ea266920eae

SHA256
21a3cf959486b410a671336307e0459b8db90f2ccfbdff0f947535f496de2584

SHA512
f4e8282a00c2379978ea962c0bab3a9110a95116b102c0387af1dcbf8a70b8a98c62bffd5d351c79aa13d698c7835d4b5455c94d4c1db831ade6257feb90da19

Download Submit
\Users\Admin\AppData\Local\Temp\nsj5B4D.tmp\InstallerUtils.dll

Filesize
830KB

MD5
3d8a0b46edabaea4438fe0d8c7b4653a

SHA1
258197826ee429b826ca57f58d522ea266920eae

SHA256
21a3cf959486b410a671336307e0459b8db90f2ccfbdff0f947535f496de2584

SHA512
f4e8282a00c2379978ea962c0bab3a9110a95116b102c0387af1dcbf8a70b8a98c62bffd5d351c79aa13d698c7835d4b5455c94d4c1db831ade6257feb90da19

Download Submit
\Users\Admin\AppData\Local\Temp\nsj5B4D.tmp\InstallerUtils.dll

Filesize
830KB

MD5
3d8a0b46edabaea4438fe0d8c7b4653a

SHA1
258197826ee429b826ca57f58d522ea266920eae

SHA256
21a3cf959486b410a671336307e0459b8db90f2ccfbdff0f947535f496de2584

SHA512
f4e8282a00c2379978ea962c0bab3a9110a95116b102c0387af1dcbf8a70b8a98c62bffd5d351c79aa13d698c7835d4b5455c94d4c1db831ade6257feb90da19

Download Submit
\Users\Admin\AppData\Local\Temp\nsj5B4D.tmp\InstallerUtils.dll

Filesize
830KB

MD5
3d8a0b46edabaea4438fe0d8c7b4653a

SHA1
258197826ee429b826ca57f58d522ea266920eae

SHA256
21a3cf959486b410a671336307e0459b8db90f2ccfbdff0f947535f496de2584

SHA512
f4e8282a00c2379978ea962c0bab3a9110a95116b102c0387af1dcbf8a70b8a98c62bffd5d351c79aa13d698c7835d4b5455c94d4c1db831ade6257feb90da19

Download Submit
\Users\Admin\AppData\Local\Temp\nsj5B4D.tmp\InstallerUtils.dll

Filesize
830KB

MD5
3d8a0b46edabaea4438fe0d8c7b4653a

SHA1
258197826ee429b826ca57f58d522ea266920eae

SHA256
21a3cf959486b410a671336307e0459b8db90f2ccfbdff0f947535f496de2584

SHA512
f4e8282a00c2379978ea962c0bab3a9110a95116b102c0387af1dcbf8a70b8a98c62bffd5d351c79aa13d698c7835d4b5455c94d4c1db831ade6257feb90da19

Download Submit
\Users\Admin\AppData\Local\Temp\nsj5B4D.tmp\InstallerUtils.dll

Filesize
830KB

MD5
3d8a0b46edabaea4438fe0d8c7b4653a

SHA1
258197826ee429b826ca57f58d522ea266920eae

SHA256
21a3cf959486b410a671336307e0459b8db90f2ccfbdff0f947535f496de2584

SHA512
f4e8282a00c2379978ea962c0bab3a9110a95116b102c0387af1dcbf8a70b8a98c62bffd5d351c79aa13d698c7835d4b5455c94d4c1db831ade6257feb90da19

Download Submit
\Users\Admin\AppData\Local\Temp\nsj5B4D.tmp\InstallerUtils2.dll

Filesize
108KB

MD5
9bf3e96fca98161dfd7bf7f9aa5cd8f9

SHA1
89994c19097a9d7c2ca03b0657013ca60adc941e

SHA256
ca0fccd692002b38328fa48c171ee6021bd14ee749d1c691e5834992cb3a3580

SHA512
542d8c16d7496c65e749860b55a1d3c7be891e3e8621621013755a1e6f559ca9ade2f6614b483c0c4880e5688329cb63a4d77cbe39cdb01d3f240388c26193b2

Download Submit
\Users\Admin\AppData\Local\Temp\nsj5B4D.tmp\StdUtils.dll

Filesize
14KB

MD5
21010df9bc37daffcc0b5ae190381d85

SHA1
a8ba022aafc1233894db29e40e569dfc8b280eb9

SHA256
0ebd62de633fa108cf18139be6778fa560680f9f8a755e41c6ab544ab8db5c16

SHA512
95d3dbba6eac144260d5fcc7fcd5fb3afcb59ae62bd2eafc5a1d2190e9b44f8e125290d62fef82ad8799d0072997c57b2fa8a643aba554d0a82bbd3f8eb1403e

Download Submit
\Users\Admin\AppData\Local\Temp\nsj5B4D.tmp\System.dll

Filesize
11KB

MD5
00a0194c20ee912257df53bfe258ee4a

SHA1
d7b4e319bc5119024690dc8230b9cc919b1b86b2

SHA256
dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3

SHA512
3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667

Download Submit
\Users\Admin\AppData\Local\Temp\nsj5B4D.tmp\UserInfo.dll

Filesize
4KB

MD5
7579ade7ae1747a31960a228ce02e666

SHA1
8ec8571a296737e819dcf86353a43fcf8ec63351

SHA256
564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5

SHA512
a88bc56e938374c333b0e33cb72951635b5d5a98b9cb2d6785073cbcad23bf4c0f9f69d3b7e87b46c76eb03ced9bb786844ce87656a9e3df4ca24acf43d7a05b

Download Submit
\Users\Admin\AppData\Local\Temp\nsj5B4D.tmp\md5dll.dll

Filesize
6KB

MD5
0745ff646f5af1f1cdd784c06f40fce9

SHA1
bf7eba06020d7154ce4e35f696bec6e6c966287f

SHA256
fbed2f1160469f42ce97c33ad558201b2b43e3020257f9b2259e3ce295317a70

SHA512
8d31627c719e788b5d0f5f34d4cb175989eaa35aa3335c98f2ba7902c8ae01b23de3ccb9c6eb95945f0b08ef74d456f9f22ca7539df303e1df3f6a7e67b358da

Download Submit
\Users\Admin\AppData\Local\Temp\nsj5B4D.tmp\md5dll.dll

Filesize
6KB

MD5
0745ff646f5af1f1cdd784c06f40fce9

SHA1
bf7eba06020d7154ce4e35f696bec6e6c966287f

SHA256
fbed2f1160469f42ce97c33ad558201b2b43e3020257f9b2259e3ce295317a70

SHA512
8d31627c719e788b5d0f5f34d4cb175989eaa35aa3335c98f2ba7902c8ae01b23de3ccb9c6eb95945f0b08ef74d456f9f22ca7539df303e1df3f6a7e67b358da

Download Submit
\Users\Admin\AppData\Local\Temp\nsj5B4D.tmp\nsisos.dll

Filesize
5KB

MD5
69806691d649ef1c8703fd9e29231d44

SHA1
e2193fcf5b4863605eec2a5eb17bf84c7ac00166

SHA256
ba79ab7f63f02ed5d5d46b82b11d97dac5b7ef7e9b9a4df926b43ceac18483b6

SHA512
5e5e0319e701d15134a01cb6472c624e271e99891058aef4dfe779c29c73899771a5b6f8b1cd61b543a3b3defeaecaa080c9cc4e76e84038ca08e12084f128eb

Download Submit
\Users\Admin\AppData\Local\Temp\nst196D.tmp\StdUtils.dll

Filesize
14KB

MD5
21010df9bc37daffcc0b5ae190381d85

SHA1
a8ba022aafc1233894db29e40e569dfc8b280eb9

SHA256
0ebd62de633fa108cf18139be6778fa560680f9f8a755e41c6ab544ab8db5c16

SHA512
95d3dbba6eac144260d5fcc7fcd5fb3afcb59ae62bd2eafc5a1d2190e9b44f8e125290d62fef82ad8799d0072997c57b2fa8a643aba554d0a82bbd3f8eb1403e

Download Submit
\Users\Admin\AppData\Local\Temp\nst196D.tmp\System.dll

Filesize
11KB

MD5
00a0194c20ee912257df53bfe258ee4a

SHA1
d7b4e319bc5119024690dc8230b9cc919b1b86b2

SHA256
dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3

SHA512
3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667

Download Submit
\Users\Admin\AppData\Local\Temp\nst196D.tmp\Tgrbezocx.exe

Filesize
11.5MB

MD5
cde9ae84ea6a878978e41c90b102a237

SHA1
15ef284b27a243462580fe3a544fc7fd5d9ca585

SHA256
4ff708b1278fe963cda6233dca6b935687fca2e659d05ea133080d46c5cad7c0

SHA512
c3059294b4c5047d79e6a969a102f1addcf746e32cf54b83b89b9354ad568fc5ce12ca1a512b8ee0930115995c4b366a01b6be37fec76d6266b1972d5a26d782

Download Submit
\Users\Admin\AppData\Local\Temp\nst196D.tmp\Tgrbezocx.exe

Filesize
11.5MB

MD5
cde9ae84ea6a878978e41c90b102a237

SHA1
15ef284b27a243462580fe3a544fc7fd5d9ca585

SHA256
4ff708b1278fe963cda6233dca6b935687fca2e659d05ea133080d46c5cad7c0

SHA512
c3059294b4c5047d79e6a969a102f1addcf746e32cf54b83b89b9354ad568fc5ce12ca1a512b8ee0930115995c4b366a01b6be37fec76d6266b1972d5a26d782

Download Submit
\Users\Admin\AppData\Local\Temp\nst196D.tmp\Tgrbezocx.exe

Filesize
11.5MB

MD5
cde9ae84ea6a878978e41c90b102a237

SHA1
15ef284b27a243462580fe3a544fc7fd5d9ca585

SHA256
4ff708b1278fe963cda6233dca6b935687fca2e659d05ea133080d46c5cad7c0

SHA512
c3059294b4c5047d79e6a969a102f1addcf746e32cf54b83b89b9354ad568fc5ce12ca1a512b8ee0930115995c4b366a01b6be37fec76d6266b1972d5a26d782

Download Submit
\Users\Admin\AppData\Local\Temp\nst196D.tmp\Tgrbezocx.exe

Filesize
11.5MB

MD5
cde9ae84ea6a878978e41c90b102a237

SHA1
15ef284b27a243462580fe3a544fc7fd5d9ca585

SHA256
4ff708b1278fe963cda6233dca6b935687fca2e659d05ea133080d46c5cad7c0

SHA512
c3059294b4c5047d79e6a969a102f1addcf746e32cf54b83b89b9354ad568fc5ce12ca1a512b8ee0930115995c4b366a01b6be37fec76d6266b1972d5a26d782

Download Submit
\Users\Admin\AppData\Local\Temp\nst196D.tmp\Tgrbezocx.exe

Filesize
11.5MB

MD5
cde9ae84ea6a878978e41c90b102a237

SHA1
15ef284b27a243462580fe3a544fc7fd5d9ca585

SHA256
4ff708b1278fe963cda6233dca6b935687fca2e659d05ea133080d46c5cad7c0

SHA512
c3059294b4c5047d79e6a969a102f1addcf746e32cf54b83b89b9354ad568fc5ce12ca1a512b8ee0930115995c4b366a01b6be37fec76d6266b1972d5a26d782

Download Submit
\Users\Admin\AppData\Local\Temp\nst196D.tmp\Tgrbezocx.exe

Filesize
11.5MB

MD5
cde9ae84ea6a878978e41c90b102a237

SHA1
15ef284b27a243462580fe3a544fc7fd5d9ca585

SHA256
4ff708b1278fe963cda6233dca6b935687fca2e659d05ea133080d46c5cad7c0

SHA512
c3059294b4c5047d79e6a969a102f1addcf746e32cf54b83b89b9354ad568fc5ce12ca1a512b8ee0930115995c4b366a01b6be37fec76d6266b1972d5a26d782

Download Submit
\Users\Admin\AppData\Local\Temp\nst196D.tmp\WrapperUtils.dll

Filesize
57KB

MD5
2ec69182134534f2e865af78c18f13ea

SHA1
da8e06de7dac5f1f856253b9309d2f4fbe42102f

SHA256
8dcba8d64a55e2755b5f4a8ddc0801d2ada65f4deb0f999172364967336250b0

SHA512
701ac6a1d593b9bc73fd38355df1a6d0594ca80e3bd805532f3f766111108364b1d5c78a24b4eb178a4a113adb7f2419ad41b3fe233537e8866375b8535393fa

Download Submit
memory/688-75-0x00000000003F0000-0x00000000003F9000-memory.dmp

Filesize
36KB

Download
memory/688-76-0x00000000003F0000-0x00000000003F9000-memory.dmp

Filesize
36KB

Download
memory/688-59-0x0000000000000000-mapping.dmp

Download
memory/688-84-0x00000000003F0000-0x00000000003F9000-memory.dmp

Filesize
36KB

Download
memory/688-85-0x00000000003F0000-0x00000000003F9000-memory.dmp

Filesize
36KB

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memory/1396-54-0x00000000752B1000-0x00000000752B3000-memory.dmp

Filesize
8KB

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memory/1720-77-0x0000000000000000-mapping.dmp

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