a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312

General

Target

a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312.exe
Size

1.1MB
MD5

446e5936689f894c8959b0707876ae12
SHA1

bc654444bd03fb171f20a6f87bc9d405d485828d
SHA256

a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312
SHA512

a520541b55f5c78c8db7588ee4535a255f06b9625aa40638ab7b402c37d32a7137132c29c0141a23e9ddf7a2de6487e07199fd093d4151c9ce193eb8d040f81e
SSDEEP

24576:7tb20pkaCqT5TBWgNQ7a787DmJpucN3JjC6A:4Vg5tQ7a787Ir3JO5

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

25382.exe

pid process

604 25382.exe

pid	process
604	25382.exe

Loads dropped DLL 4 IoCs

Processes:

a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312.exe

pid	process
2020	a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312.exe
2020	a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312.exe
2020	a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312.exe
2020	a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

25382.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	25382.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\WerFault = "C:\\Users\\Admin\\AppData\\Roaming\\25382.exe"	25382.exe

AutoIT Executable 6 IoCs

AutoIT scripts compiled to PE executables.

Processes:

resource	yara_rule
\Users\Admin\AppData\Roaming\25382.exe	autoit_exe
\Users\Admin\AppData\Roaming\25382.exe	autoit_exe
\Users\Admin\AppData\Roaming\25382.exe	autoit_exe
\Users\Admin\AppData\Roaming\25382.exe	autoit_exe
C:\Users\Admin\AppData\Roaming\25382.exe	autoit_exe
C:\Users\Admin\AppData\Roaming\25382.exe	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

25382.exe

description pid process target process

PID 604 set thread context of 1760 604 25382.exe WerFault.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	pid	process	target process
PID 604 set thread context of 1760	604	25382.exe	WerFault.exe

NTFS ADS 3 IoCs

Processes:

a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312.exe25382.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312.exe:Zone.Identifier:$DATA	a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312.exe
File created	C:\Users\Admin\AppData\Roaming\25382.exe\:Zone.Identifier:$DATA	a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\25382.exe:Zone.Identifier:$DATA	25382.exe

Suspicious use of FindShellTrayWindow 8 IoCs

Processes:

a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312.exe25382.exe

pid	process
2020	a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312.exe
2020	a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312.exe
2020	a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312.exe
2020	a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312.exe
2020	a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312.exe
604	25382.exe
604	25382.exe
604	25382.exe

Suspicious use of SendNotifyMessage 8 IoCs

Processes:

a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312.exe25382.exe

pid	process
2020	a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312.exe
2020	a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312.exe
2020	a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312.exe
2020	a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312.exe
2020	a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312.exe
604	25382.exe
604	25382.exe
604	25382.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312.exe25382.exe

description	pid	process	target process
PID 2020 wrote to memory of 604	2020	a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312.exe	25382.exe
PID 2020 wrote to memory of 604	2020	a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312.exe	25382.exe
PID 2020 wrote to memory of 604	2020	a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312.exe	25382.exe
PID 2020 wrote to memory of 604	2020	a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312.exe	25382.exe
PID 604 wrote to memory of 1760	604	25382.exe	WerFault.exe
PID 604 wrote to memory of 1760	604	25382.exe	WerFault.exe
PID 604 wrote to memory of 1760	604	25382.exe	WerFault.exe
PID 604 wrote to memory of 1760	604	25382.exe	WerFault.exe
PID 604 wrote to memory of 1760	604	25382.exe	WerFault.exe
PID 604 wrote to memory of 1760	604	25382.exe	WerFault.exe
PID 604 wrote to memory of 1760	604	25382.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312.exe
"C:\Users\Admin\AppData\Local\Temp\a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312.exe"
1⤵
- Loads dropped DLL
- NTFS ADS
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2020

C:\Users\Admin\AppData\Roaming\25382.exe
"C:\Users\Admin\AppData\Roaming\25382.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- NTFS ADS
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:604

C:\Windows\SysWOW64\WerFault.exe
"C:\Windows\SysWOW64\WerFault.exe"
3⤵
PID:1760

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\r
Filesize
1KB

MD5
8db5d85d4e4fdd5502d657ac2f777304

SHA1
c0e5a0782cf843aa2e82c36a1df367d8ea5c03d4

SHA256
af005b46e08dddc9820363673bc425500f5ed7ab5c30f26f3ce273b8f9971f5c

SHA512
acc00a26d8177723fe8c8caf413e88d72c446d9a56d459b8748102a90cbfb1a56e9df9c2d7db40eb5b6d4888ec9519e7af715d23644d99ceb33fd0c8081835ff

Download Submit
C:\Users\Admin\AppData\Local\Temp\rr
Filesize
272KB

MD5
d335cbc758c02006525563fdd45e3a05

SHA1
d072f8bbefb605539a967e844271fdaec9428aa4

SHA256
ae04610be29f1ceb08dfbf9083c78ddab6479770c434b017b2d1140a9eb96313

SHA512
61b828b178777512c00651de8e3f9332fa445e8a9998b3a4b331bb6f626572e80aa5be32ec01299c2c08ab396f8db4c22f30968cf4851bc3cd71a00c77c188b3

Download Submit
C:\Users\Admin\AppData\Roaming\25382.exe
Filesize
1.1MB

MD5
446e5936689f894c8959b0707876ae12

SHA1
bc654444bd03fb171f20a6f87bc9d405d485828d

SHA256
a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312

SHA512
a520541b55f5c78c8db7588ee4535a255f06b9625aa40638ab7b402c37d32a7137132c29c0141a23e9ddf7a2de6487e07199fd093d4151c9ce193eb8d040f81e

Download Submit
C:\Users\Admin\AppData\Roaming\25382.exe
Filesize
1.1MB

MD5
446e5936689f894c8959b0707876ae12

SHA1
bc654444bd03fb171f20a6f87bc9d405d485828d

SHA256
a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312

SHA512
a520541b55f5c78c8db7588ee4535a255f06b9625aa40638ab7b402c37d32a7137132c29c0141a23e9ddf7a2de6487e07199fd093d4151c9ce193eb8d040f81e

Download Submit
\Users\Admin\AppData\Roaming\25382.exe
Filesize
1.1MB

MD5
446e5936689f894c8959b0707876ae12

SHA1
bc654444bd03fb171f20a6f87bc9d405d485828d

SHA256
a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312

SHA512
a520541b55f5c78c8db7588ee4535a255f06b9625aa40638ab7b402c37d32a7137132c29c0141a23e9ddf7a2de6487e07199fd093d4151c9ce193eb8d040f81e

Download Submit
\Users\Admin\AppData\Roaming\25382.exe
Filesize
1.1MB

MD5
446e5936689f894c8959b0707876ae12

SHA1
bc654444bd03fb171f20a6f87bc9d405d485828d

SHA256
a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312

SHA512
a520541b55f5c78c8db7588ee4535a255f06b9625aa40638ab7b402c37d32a7137132c29c0141a23e9ddf7a2de6487e07199fd093d4151c9ce193eb8d040f81e

Download Submit
\Users\Admin\AppData\Roaming\25382.exe
Filesize
1.1MB

MD5
446e5936689f894c8959b0707876ae12

SHA1
bc654444bd03fb171f20a6f87bc9d405d485828d

SHA256
a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312

SHA512
a520541b55f5c78c8db7588ee4535a255f06b9625aa40638ab7b402c37d32a7137132c29c0141a23e9ddf7a2de6487e07199fd093d4151c9ce193eb8d040f81e

Download Submit
\Users\Admin\AppData\Roaming\25382.exe
Filesize
1.1MB

MD5
446e5936689f894c8959b0707876ae12

SHA1
bc654444bd03fb171f20a6f87bc9d405d485828d

SHA256
a71b9f7bd9556e9439e5c14ec3b9bf3bfb4f6c8681054fd969d708035b358312

SHA512
a520541b55f5c78c8db7588ee4535a255f06b9625aa40638ab7b402c37d32a7137132c29c0141a23e9ddf7a2de6487e07199fd093d4151c9ce193eb8d040f81e

Download Submit
memory/604-59-0x0000000000000000-mapping.dmp

Download
memory/1760-68-0x00000000004454BE-mapping.dmp

Download
memory/2020-54-0x0000000075451000-0x0000000075453000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads