1faa89ad631094bf3b37483c113acd75d62a6db6574a32e10d7b3c2625370d14

General

Target

1faa89ad631094bf3b37483c113acd75d62a6db6574a32e10d7b3c2625370d14.exe
Size

49KB
MD5

66fccc97b5cbec264ae902e094182904
SHA1

ac57e923e4ed2438b72668477a0154edc2bde585
SHA256

1faa89ad631094bf3b37483c113acd75d62a6db6574a32e10d7b3c2625370d14
SHA512

10ff43178c3229dd783fc72c770400316b9d0ca7c9f380cc3e8da6142d8c6a04fd13514b6e5ef03592afec27ebc3f9ecac67e587475e14505c2356d2d5cc6259
SSDEEP

768:eokswQQnAQ/rZSwk5ALCdB2DWG+qkCW78Yni1XH3XJzdqWPZBuUYIKsZEYbo7A:9kswQDYrZo5isPqo78fXJzgW5pxk7A

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

appdomain.exesychost.exe

pid process

464 appdomain.exe
640 sychost.exe

pid	process
464	appdomain.exe
640	sychost.exe

Loads dropped DLL 3 IoCs

Processes:

1faa89ad631094bf3b37483c113acd75d62a6db6574a32e10d7b3c2625370d14.exeappdomain.exe

pid	process
576	1faa89ad631094bf3b37483c113acd75d62a6db6574a32e10d7b3c2625370d14.exe
576	1faa89ad631094bf3b37483c113acd75d62a6db6574a32e10d7b3c2625370d14.exe
464	appdomain.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

appdomain.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce	appdomain.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\WindowsNT = "\"C:\\Users\\Admin\\AppData\\Roaming\\sychost\\appdomain.exe\""	appdomain.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

NSIS installer 6 IoCs

installer

Processes:

resource	yara_rule
\Users\Admin\AppData\Roaming\sychost\appdomain.exe	nsis_installer_1
\Users\Admin\AppData\Roaming\sychost\appdomain.exe	nsis_installer_2
C:\Users\Admin\AppData\Roaming\sychost\appdomain.exe	nsis_installer_1
C:\Users\Admin\AppData\Roaming\sychost\appdomain.exe	nsis_installer_2
C:\Users\Admin\AppData\Roaming\sychost\appdomain.exe	nsis_installer_1
C:\Users\Admin\AppData\Roaming\sychost\appdomain.exe	nsis_installer_2

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

1faa89ad631094bf3b37483c113acd75d62a6db6574a32e10d7b3c2625370d14.exe

pid process

576 1faa89ad631094bf3b37483c113acd75d62a6db6574a32e10d7b3c2625370d14.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

1faa89ad631094bf3b37483c113acd75d62a6db6574a32e10d7b3c2625370d14.exeappdomain.exe

description	pid	process	target process
PID 576 wrote to memory of 464	576	1faa89ad631094bf3b37483c113acd75d62a6db6574a32e10d7b3c2625370d14.exe	appdomain.exe
PID 576 wrote to memory of 464	576	1faa89ad631094bf3b37483c113acd75d62a6db6574a32e10d7b3c2625370d14.exe	appdomain.exe
PID 576 wrote to memory of 464	576	1faa89ad631094bf3b37483c113acd75d62a6db6574a32e10d7b3c2625370d14.exe	appdomain.exe
PID 576 wrote to memory of 464	576	1faa89ad631094bf3b37483c113acd75d62a6db6574a32e10d7b3c2625370d14.exe	appdomain.exe
PID 464 wrote to memory of 640	464	appdomain.exe	sychost.exe
PID 464 wrote to memory of 640	464	appdomain.exe	sychost.exe
PID 464 wrote to memory of 640	464	appdomain.exe	sychost.exe
PID 464 wrote to memory of 640	464	appdomain.exe	sychost.exe

C:\Users\Admin\AppData\Local\Temp\1faa89ad631094bf3b37483c113acd75d62a6db6574a32e10d7b3c2625370d14.exe
"C:\Users\Admin\AppData\Local\Temp\1faa89ad631094bf3b37483c113acd75d62a6db6574a32e10d7b3c2625370d14.exe"
1⤵
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:576

C:\Users\Admin\AppData\Roaming\sychost\appdomain.exe
C:\Users\Admin\AppData\Roaming\sychost\appdomain.exe
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:464

C:\Users\Admin\AppData\Roaming\sychost\sychost.exe
C:\Users\Admin\AppData\Roaming\sychost\sychost.exe
3⤵
- Executes dropped EXE
PID:640

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\sychost\appdomain.exe

Filesize
49KB

MD5
66fccc97b5cbec264ae902e094182904

SHA1
ac57e923e4ed2438b72668477a0154edc2bde585

SHA256
1faa89ad631094bf3b37483c113acd75d62a6db6574a32e10d7b3c2625370d14

SHA512
10ff43178c3229dd783fc72c770400316b9d0ca7c9f380cc3e8da6142d8c6a04fd13514b6e5ef03592afec27ebc3f9ecac67e587475e14505c2356d2d5cc6259

Download Submit
C:\Users\Admin\AppData\Roaming\sychost\appdomain.exe

Filesize
49KB

MD5
66fccc97b5cbec264ae902e094182904

SHA1
ac57e923e4ed2438b72668477a0154edc2bde585

SHA256
1faa89ad631094bf3b37483c113acd75d62a6db6574a32e10d7b3c2625370d14

SHA512
10ff43178c3229dd783fc72c770400316b9d0ca7c9f380cc3e8da6142d8c6a04fd13514b6e5ef03592afec27ebc3f9ecac67e587475e14505c2356d2d5cc6259

Download Submit
C:\Users\Admin\AppData\Roaming\sychost\sychost.exe

Filesize
24KB

MD5
a45321be660b0dbd93d6a2ea208f19bb

SHA1
04925aaee56724371ea040b223ed93a1b38b1c26

SHA256
aa386226477f774b085328b1c01ced9e8edc208d97fa1a85f6e1f4abbf1c0f38

SHA512
c9ddd12a1695fee4d3ff93e476fa940556d91ab41f41ee6fd88cc5949543c443f745590a7a79354723880ec6a6c3a2ce10c2f61fedabfe79f6b8707b22d963e4

Download Submit
C:\Users\Admin\AppData\Roaming\sychost\sychost.exe

Filesize
24KB

MD5
a45321be660b0dbd93d6a2ea208f19bb

SHA1
04925aaee56724371ea040b223ed93a1b38b1c26

SHA256
aa386226477f774b085328b1c01ced9e8edc208d97fa1a85f6e1f4abbf1c0f38

SHA512
c9ddd12a1695fee4d3ff93e476fa940556d91ab41f41ee6fd88cc5949543c443f745590a7a79354723880ec6a6c3a2ce10c2f61fedabfe79f6b8707b22d963e4

Download Submit
\Users\Admin\AppData\Local\Temp\nsjA5A5.tmp\System.dll

Filesize
11KB

MD5
a436db0c473a087eb61ff5c53c34ba27

SHA1
65ea67e424e75f5065132b539c8b2eda88aa0506

SHA256
75ed40311875312617d6711baed0be29fcaee71031ca27a8d308a72b15a51e49

SHA512
908f46a855480af6eacb2fb64de0e60b1e04bbb10b23992e2cf38a4cbebdcd7d3928c4c022d7ad9f7479265a8f426b93eef580afec95570e654c360d62f5e08d

Download Submit
\Users\Admin\AppData\Roaming\sychost\appdomain.exe

Filesize
49KB

MD5
66fccc97b5cbec264ae902e094182904

SHA1
ac57e923e4ed2438b72668477a0154edc2bde585

SHA256
1faa89ad631094bf3b37483c113acd75d62a6db6574a32e10d7b3c2625370d14

SHA512
10ff43178c3229dd783fc72c770400316b9d0ca7c9f380cc3e8da6142d8c6a04fd13514b6e5ef03592afec27ebc3f9ecac67e587475e14505c2356d2d5cc6259

Download Submit
\Users\Admin\AppData\Roaming\sychost\sychost.exe

Filesize
24KB

MD5
a45321be660b0dbd93d6a2ea208f19bb

SHA1
04925aaee56724371ea040b223ed93a1b38b1c26

SHA256
aa386226477f774b085328b1c01ced9e8edc208d97fa1a85f6e1f4abbf1c0f38

SHA512
c9ddd12a1695fee4d3ff93e476fa940556d91ab41f41ee6fd88cc5949543c443f745590a7a79354723880ec6a6c3a2ce10c2f61fedabfe79f6b8707b22d963e4

Download Submit
memory/464-58-0x0000000000000000-mapping.dmp

Download
memory/576-56-0x0000000074301000-0x0000000074303000-memory.dmp

Filesize
8KB

Download
memory/576-54-0x0000000075F21000-0x0000000075F23000-memory.dmp

Filesize
8KB

Download
memory/640-63-0x0000000000000000-mapping.dmp

Download
memory/640-67-0x0000000073F10000-0x00000000744BB000-memory.dmp

Filesize
5.7MB

Download
memory/640-68-0x0000000073F10000-0x00000000744BB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads