b3d7854e1dbc16062f04e64aac60a78c51352148398cb28ee113b485bae4492f

General

Target

b3d7854e1dbc16062f04e64aac60a78c51352148398cb28ee113b485bae4492f.exe
Size

93KB
MD5

8e04e65cab967181336b0a02340b260e
SHA1

539d8488b7b2441bb73e42092aa056575f7f928a
SHA256

b3d7854e1dbc16062f04e64aac60a78c51352148398cb28ee113b485bae4492f
SHA512

617cef676d00617a6d1b827dbf868c78d4eb92dfc341f9b9bfe64764100659a4c6128747ab0a57827d69d0baf2d26f75bd3f282494eff1000f63fdd3ab6984d3
SSDEEP

1536:/rT5WG67FWBMk/r2mvWh7XjNd3s3WX2o2PYFzwJOpWB8aPzeZIZAKkxTE4n0xC7A://YL7f4r2RheSFrWB8aLe4A/xTEe0Myf

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
800	BCSSync.exe
300	BCSSync.exe

Loads dropped DLL 2 IoCs

pid	Process
1704	b3d7854e1dbc16062f04e64aac60a78c51352148398cb28ee113b485bae4492f.exe
1704	b3d7854e1dbc16062f04e64aac60a78c51352148398cb28ee113b485bae4492f.exe

Unexpected DNS network traffic destination 5 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	83.133.119.139
Destination IP	83.133.119.139
Destination IP	83.133.119.139
Destination IP	83.133.119.139
Destination IP	83.133.119.139

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1912 set thread context of 1704	1912	b3d7854e1dbc16062f04e64aac60a78c51352148398cb28ee113b485bae4492f.exe	27
PID 800 set thread context of 300	800	BCSSync.exe	29

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe	b3d7854e1dbc16062f04e64aac60a78c51352148398cb28ee113b485bae4492f.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe	b3d7854e1dbc16062f04e64aac60a78c51352148398cb28ee113b485bae4492f.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Fonts\6mSHBnGJY.com	b3d7854e1dbc16062f04e64aac60a78c51352148398cb28ee113b485bae4492f.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

pid	Process
300	BCSSync.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1912 wrote to memory of 1704	1912	b3d7854e1dbc16062f04e64aac60a78c51352148398cb28ee113b485bae4492f.exe	27
PID 1912 wrote to memory of 1704	1912	b3d7854e1dbc16062f04e64aac60a78c51352148398cb28ee113b485bae4492f.exe	27
PID 1912 wrote to memory of 1704	1912	b3d7854e1dbc16062f04e64aac60a78c51352148398cb28ee113b485bae4492f.exe	27
PID 1912 wrote to memory of 1704	1912	b3d7854e1dbc16062f04e64aac60a78c51352148398cb28ee113b485bae4492f.exe	27
PID 1912 wrote to memory of 1704	1912	b3d7854e1dbc16062f04e64aac60a78c51352148398cb28ee113b485bae4492f.exe	27
PID 1912 wrote to memory of 1704	1912	b3d7854e1dbc16062f04e64aac60a78c51352148398cb28ee113b485bae4492f.exe	27
PID 1912 wrote to memory of 1704	1912	b3d7854e1dbc16062f04e64aac60a78c51352148398cb28ee113b485bae4492f.exe	27
PID 1912 wrote to memory of 1704	1912	b3d7854e1dbc16062f04e64aac60a78c51352148398cb28ee113b485bae4492f.exe	27
PID 1912 wrote to memory of 1704	1912	b3d7854e1dbc16062f04e64aac60a78c51352148398cb28ee113b485bae4492f.exe	27
PID 1704 wrote to memory of 800	1704	b3d7854e1dbc16062f04e64aac60a78c51352148398cb28ee113b485bae4492f.exe	28
PID 1704 wrote to memory of 800	1704	b3d7854e1dbc16062f04e64aac60a78c51352148398cb28ee113b485bae4492f.exe	28
PID 1704 wrote to memory of 800	1704	b3d7854e1dbc16062f04e64aac60a78c51352148398cb28ee113b485bae4492f.exe	28
PID 1704 wrote to memory of 800	1704	b3d7854e1dbc16062f04e64aac60a78c51352148398cb28ee113b485bae4492f.exe	28
PID 800 wrote to memory of 300	800	BCSSync.exe	29
PID 800 wrote to memory of 300	800	BCSSync.exe	29
PID 800 wrote to memory of 300	800	BCSSync.exe	29
PID 800 wrote to memory of 300	800	BCSSync.exe	29
PID 800 wrote to memory of 300	800	BCSSync.exe	29
PID 800 wrote to memory of 300	800	BCSSync.exe	29
PID 800 wrote to memory of 300	800	BCSSync.exe	29
PID 800 wrote to memory of 300	800	BCSSync.exe	29
PID 800 wrote to memory of 300	800	BCSSync.exe	29
PID 300 wrote to memory of 628	300	BCSSync.exe	30
PID 300 wrote to memory of 628	300	BCSSync.exe	30
PID 300 wrote to memory of 628	300	BCSSync.exe	30
PID 300 wrote to memory of 628	300	BCSSync.exe	30

C:\Users\Admin\AppData\Local\Temp\b3d7854e1dbc16062f04e64aac60a78c51352148398cb28ee113b485bae4492f.exe
"C:\Users\Admin\AppData\Local\Temp\b3d7854e1dbc16062f04e64aac60a78c51352148398cb28ee113b485bae4492f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1912
- C:\Users\Admin\AppData\Local\Temp\b3d7854e1dbc16062f04e64aac60a78c51352148398cb28ee113b485bae4492f.exe
  "C:\Users\Admin\AppData\Local\Temp\b3d7854e1dbc16062f04e64aac60a78c51352148398cb28ee113b485bae4492f.exe"
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:1704
- - 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\b3d7854e1dbc16062f04e64aac60a78c51352148398cb28ee113b485bae4492f.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:800
  - - 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\b3d7854e1dbc16062f04e64aac60a78c51352148398cb28ee113b485bae4492f.exe
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:300
    - - 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" DEL:C:\Users\Admin\AppData\Local\Temp\b3d7854e1dbc16062f04e64aac60a78c51352148398cb28ee113b485bae4492f.exe
        5⤵
        
        PID:628

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
93KB

MD5
61f4518a6606b59a5ecc89ba50484b7c

SHA1
c5449b03c73a4f61a8eaddd74b9b85c97870e736

SHA256
45ff987cee09df7f05cad67055e47774d81fcaab6596a04fbf36ed49f69e81be

SHA512
170b3110bb329261440acb7c775eacc490fac726e36df120a0285a4d7a3815d1c82e518ecaafa6b50e667e1a1219086830bdc4940e3e279f61e046f53e18daff

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

Filesize
93KB

MD5
61f4518a6606b59a5ecc89ba50484b7c

SHA1
c5449b03c73a4f61a8eaddd74b9b85c97870e736

SHA256
45ff987cee09df7f05cad67055e47774d81fcaab6596a04fbf36ed49f69e81be

SHA512
170b3110bb329261440acb7c775eacc490fac726e36df120a0285a4d7a3815d1c82e518ecaafa6b50e667e1a1219086830bdc4940e3e279f61e046f53e18daff

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

Filesize
93KB

MD5
61f4518a6606b59a5ecc89ba50484b7c

SHA1
c5449b03c73a4f61a8eaddd74b9b85c97870e736

SHA256
45ff987cee09df7f05cad67055e47774d81fcaab6596a04fbf36ed49f69e81be

SHA512
170b3110bb329261440acb7c775eacc490fac726e36df120a0285a4d7a3815d1c82e518ecaafa6b50e667e1a1219086830bdc4940e3e279f61e046f53e18daff

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

Filesize
93KB

MD5
61f4518a6606b59a5ecc89ba50484b7c

SHA1
c5449b03c73a4f61a8eaddd74b9b85c97870e736

SHA256
45ff987cee09df7f05cad67055e47774d81fcaab6596a04fbf36ed49f69e81be

SHA512
170b3110bb329261440acb7c775eacc490fac726e36df120a0285a4d7a3815d1c82e518ecaafa6b50e667e1a1219086830bdc4940e3e279f61e046f53e18daff

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

Filesize
93KB

MD5
61f4518a6606b59a5ecc89ba50484b7c

SHA1
c5449b03c73a4f61a8eaddd74b9b85c97870e736

SHA256
45ff987cee09df7f05cad67055e47774d81fcaab6596a04fbf36ed49f69e81be

SHA512
170b3110bb329261440acb7c775eacc490fac726e36df120a0285a4d7a3815d1c82e518ecaafa6b50e667e1a1219086830bdc4940e3e279f61e046f53e18daff

Download Submit
memory/300-91-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/300-82-0x0000000000401A40-mapping.dmp

Download
memory/628-92-0x0000000000000000-mapping.dmp

Download
memory/800-72-0x0000000000000000-mapping.dmp

Download
memory/1704-60-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1704-69-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1704-65-0x0000000010000000-0x000000001000A000-memory.dmp

Filesize
40KB

Download
memory/1704-64-0x00000000762D1000-0x00000000762D3000-memory.dmp

Filesize
8KB

Download
memory/1704-63-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1704-61-0x0000000000401A40-mapping.dmp

Download
memory/1704-54-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1704-58-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1704-57-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1704-56-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1704-55-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1704-94-0x0000000074501000-0x0000000074503000-memory.dmp

Filesize
8KB

Download

Analysis

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