17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed

General

Target

17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe
Size

39KB
MD5

4b8a6dc8994b8669b127da15590e4938
SHA1

170fd232e386caa2a0c768118c192c58a446e28e
SHA256

17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed
SHA512

5234922dbcd78d892e5f611973f80cc84aa0a3b9ca446e13897038510ae317714120a9c308db33acb44b1036cc8e9a362398f8d16957f993b56a781b5e32d698
SSDEEP

768:30hvZ7K2gJSRzmKxBqg+9ZPba3QagR9DZGYVW6YXcTLNNl:kHSEHBq95XagR9lGYV/T

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

BCSSync.exeBCSSync.exe

pid process

1964 BCSSync.exe
1060 BCSSync.exe

pid	process
1964	BCSSync.exe
1060	BCSSync.exe

Loads dropped DLL 2 IoCs

Processes:

17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe

pid	process
1452	17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe
1452	17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe

Unexpected DNS network traffic destination 4 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.

Processes:

description ioc

Destination IP 50.7.247.251
Destination IP 50.7.247.251
Destination IP 50.7.247.251
Destination IP 50.7.247.251

description	ioc
Destination IP	50.7.247.251
Destination IP	50.7.247.251
Destination IP	50.7.247.251
Destination IP	50.7.247.251

Suspicious use of SetThreadContext 2 IoCs

Processes:

17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exeBCSSync.exe

description	pid	process	target process
PID 828 set thread context of 1452	828	17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe	17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe
PID 1964 set thread context of 1060	1964	BCSSync.exe	BCSSync.exe

Drops file in Program Files directory 2 IoCs

Processes:

17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe

description	ioc	process
File created	C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe	17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe	17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe

Drops file in Windows directory 1 IoCs

Processes:

17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe

description ioc process

File created C:\Windows\Fonts\GN12eyuA.com 17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

BCSSync.exe

pid process

1060 BCSSync.exe

description	ioc	process
File created	C:\Windows\Fonts\GN12eyuA.com	17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe

pid	process
1060	BCSSync.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exeBCSSync.exeBCSSync.exe

description	pid	process	target process
PID 828 wrote to memory of 1452	828	17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe	17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe
PID 828 wrote to memory of 1452	828	17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe	17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe
PID 828 wrote to memory of 1452	828	17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe	17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe
PID 828 wrote to memory of 1452	828	17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe	17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe
PID 828 wrote to memory of 1452	828	17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe	17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe
PID 828 wrote to memory of 1452	828	17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe	17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe
PID 828 wrote to memory of 1452	828	17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe	17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe
PID 828 wrote to memory of 1452	828	17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe	17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe
PID 828 wrote to memory of 1452	828	17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe	17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe
PID 1452 wrote to memory of 1964	1452	17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe	BCSSync.exe
PID 1452 wrote to memory of 1964	1452	17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe	BCSSync.exe
PID 1452 wrote to memory of 1964	1452	17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe	BCSSync.exe
PID 1452 wrote to memory of 1964	1452	17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe	BCSSync.exe
PID 1964 wrote to memory of 1060	1964	BCSSync.exe	BCSSync.exe
PID 1964 wrote to memory of 1060	1964	BCSSync.exe	BCSSync.exe
PID 1964 wrote to memory of 1060	1964	BCSSync.exe	BCSSync.exe
PID 1964 wrote to memory of 1060	1964	BCSSync.exe	BCSSync.exe
PID 1964 wrote to memory of 1060	1964	BCSSync.exe	BCSSync.exe
PID 1964 wrote to memory of 1060	1964	BCSSync.exe	BCSSync.exe
PID 1964 wrote to memory of 1060	1964	BCSSync.exe	BCSSync.exe
PID 1964 wrote to memory of 1060	1964	BCSSync.exe	BCSSync.exe
PID 1964 wrote to memory of 1060	1964	BCSSync.exe	BCSSync.exe
PID 1060 wrote to memory of 560	1060	BCSSync.exe	BCSSync .exe
PID 1060 wrote to memory of 560	1060	BCSSync.exe	BCSSync .exe
PID 1060 wrote to memory of 560	1060	BCSSync.exe	BCSSync .exe
PID 1060 wrote to memory of 560	1060	BCSSync.exe	BCSSync .exe

C:\Users\Admin\AppData\Local\Temp\17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe
"C:\Users\Admin\AppData\Local\Temp\17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:828

C:\Users\Admin\AppData\Local\Temp\17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe
C:\Users\Admin\AppData\Local\Temp\17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe
2⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1452

C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe
"C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe" DEL:C:\Users\Admin\AppData\Local\Temp\17f5bebeb4b7776af71d02c138303d91ffb649b4c7e6796cf53975e35334a7ed.exe
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1964

C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe
"C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe"
4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1060

C:\Program Files (x86)\Microsoft Office\Office14\BCSSync .exe
"C:\Program Files (x86)\Microsoft Office\Office14\BCSSync .exe" "C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe"
5⤵
PID:560

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe
Filesize
39KB

MD5
0772e8a99351575fb8c8799fea5813bc

SHA1
8b6d008492ee6a1cd217bc7465f2ecec0e97f558

SHA256
179b7e3db0960ba8fcde1d8ec35bcb29956c0a13a7e89c29be6cbd8a445310d2

SHA512
5313da84d9eea08fb602bd9491541f4a74cd5db85d304b81d60f36d6212f54b2d5b03bedeb4bd8d844cb1c897ed0531ac39022ba6846230febec0fa0152a3b13

Download Submit
C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe
Filesize
39KB

MD5
0772e8a99351575fb8c8799fea5813bc

SHA1
8b6d008492ee6a1cd217bc7465f2ecec0e97f558

SHA256
179b7e3db0960ba8fcde1d8ec35bcb29956c0a13a7e89c29be6cbd8a445310d2

SHA512
5313da84d9eea08fb602bd9491541f4a74cd5db85d304b81d60f36d6212f54b2d5b03bedeb4bd8d844cb1c897ed0531ac39022ba6846230febec0fa0152a3b13

Download Submit
C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe
Filesize
39KB

MD5
0772e8a99351575fb8c8799fea5813bc

SHA1
8b6d008492ee6a1cd217bc7465f2ecec0e97f558

SHA256
179b7e3db0960ba8fcde1d8ec35bcb29956c0a13a7e89c29be6cbd8a445310d2

SHA512
5313da84d9eea08fb602bd9491541f4a74cd5db85d304b81d60f36d6212f54b2d5b03bedeb4bd8d844cb1c897ed0531ac39022ba6846230febec0fa0152a3b13

Download Submit
\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe
Filesize
39KB

MD5
0772e8a99351575fb8c8799fea5813bc

SHA1
8b6d008492ee6a1cd217bc7465f2ecec0e97f558

SHA256
179b7e3db0960ba8fcde1d8ec35bcb29956c0a13a7e89c29be6cbd8a445310d2

SHA512
5313da84d9eea08fb602bd9491541f4a74cd5db85d304b81d60f36d6212f54b2d5b03bedeb4bd8d844cb1c897ed0531ac39022ba6846230febec0fa0152a3b13

Download Submit
\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe
Filesize
39KB

MD5
0772e8a99351575fb8c8799fea5813bc

SHA1
8b6d008492ee6a1cd217bc7465f2ecec0e97f558

SHA256
179b7e3db0960ba8fcde1d8ec35bcb29956c0a13a7e89c29be6cbd8a445310d2

SHA512
5313da84d9eea08fb602bd9491541f4a74cd5db85d304b81d60f36d6212f54b2d5b03bedeb4bd8d844cb1c897ed0531ac39022ba6846230febec0fa0152a3b13

Download Submit
memory/560-86-0x0000000000000000-mapping.dmp

Download
memory/1060-85-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1060-84-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1060-79-0x0000000000403DD9-mapping.dmp

Download
memory/1452-60-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1452-66-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1452-65-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1452-64-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1452-63-0x0000000075781000-0x0000000075783000-memory.dmp

Filesize
8KB

Download
memory/1452-61-0x0000000000403DD9-mapping.dmp

Download
memory/1452-54-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1452-59-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1452-58-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1452-57-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1452-55-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1964-69-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads