eaf9c4843e30f663da96a0a1217267a14faac56441962e00c9df348cd399c5ef

General

Target

eaf9c4843e30f663da96a0a1217267a14faac56441962e00c9df348cd399c5ef.exe
Size

35KB
MD5

c5a6861990530ac6c4a85cf0d664c2ce
SHA1

2b76db81b76a1e12c437a0654c38c3bcc769054f
SHA256

eaf9c4843e30f663da96a0a1217267a14faac56441962e00c9df348cd399c5ef
SHA512

1471103d87346e9eea7bebb3be685ae6980fa4c2dd14a3a72d4d916d9fccffa5903e0fe66ddc3006272ce718d5a54f0272083fd561c50df91d3f00434e2e754c
SSDEEP

384:uTgmkYQJ89BqD+H1Apn2tz7XFLsti35MXWTIqB0A+xWbosx97MSAl3AFj8YczMsu:uGJnTt2BVsfIt2ofPEuuMMZSoAsdXBBw

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1460	BCSSync.exe
832	BCSSync.exe

Loads dropped DLL 2 IoCs

pid	Process
884	eaf9c4843e30f663da96a0a1217267a14faac56441962e00c9df348cd399c5ef.exe
884	eaf9c4843e30f663da96a0a1217267a14faac56441962e00c9df348cd399c5ef.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 1080 set thread context of 884	1080	eaf9c4843e30f663da96a0a1217267a14faac56441962e00c9df348cd399c5ef.exe	28
PID 1460 set thread context of 832	1460	BCSSync.exe	30

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe	eaf9c4843e30f663da96a0a1217267a14faac56441962e00c9df348cd399c5ef.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe	eaf9c4843e30f663da96a0a1217267a14faac56441962e00c9df348cd399c5ef.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Fonts\8k2o44.com	eaf9c4843e30f663da96a0a1217267a14faac56441962e00c9df348cd399c5ef.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
832	BCSSync.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1080 wrote to memory of 884	1080	eaf9c4843e30f663da96a0a1217267a14faac56441962e00c9df348cd399c5ef.exe	28
PID 1080 wrote to memory of 884	1080	eaf9c4843e30f663da96a0a1217267a14faac56441962e00c9df348cd399c5ef.exe	28
PID 1080 wrote to memory of 884	1080	eaf9c4843e30f663da96a0a1217267a14faac56441962e00c9df348cd399c5ef.exe	28
PID 1080 wrote to memory of 884	1080	eaf9c4843e30f663da96a0a1217267a14faac56441962e00c9df348cd399c5ef.exe	28
PID 1080 wrote to memory of 884	1080	eaf9c4843e30f663da96a0a1217267a14faac56441962e00c9df348cd399c5ef.exe	28
PID 1080 wrote to memory of 884	1080	eaf9c4843e30f663da96a0a1217267a14faac56441962e00c9df348cd399c5ef.exe	28
PID 1080 wrote to memory of 884	1080	eaf9c4843e30f663da96a0a1217267a14faac56441962e00c9df348cd399c5ef.exe	28
PID 1080 wrote to memory of 884	1080	eaf9c4843e30f663da96a0a1217267a14faac56441962e00c9df348cd399c5ef.exe	28
PID 1080 wrote to memory of 884	1080	eaf9c4843e30f663da96a0a1217267a14faac56441962e00c9df348cd399c5ef.exe	28
PID 884 wrote to memory of 1460	884	eaf9c4843e30f663da96a0a1217267a14faac56441962e00c9df348cd399c5ef.exe	29
PID 884 wrote to memory of 1460	884	eaf9c4843e30f663da96a0a1217267a14faac56441962e00c9df348cd399c5ef.exe	29
PID 884 wrote to memory of 1460	884	eaf9c4843e30f663da96a0a1217267a14faac56441962e00c9df348cd399c5ef.exe	29
PID 884 wrote to memory of 1460	884	eaf9c4843e30f663da96a0a1217267a14faac56441962e00c9df348cd399c5ef.exe	29
PID 1460 wrote to memory of 832	1460	BCSSync.exe	30
PID 1460 wrote to memory of 832	1460	BCSSync.exe	30
PID 1460 wrote to memory of 832	1460	BCSSync.exe	30
PID 1460 wrote to memory of 832	1460	BCSSync.exe	30
PID 1460 wrote to memory of 832	1460	BCSSync.exe	30
PID 1460 wrote to memory of 832	1460	BCSSync.exe	30
PID 1460 wrote to memory of 832	1460	BCSSync.exe	30
PID 1460 wrote to memory of 832	1460	BCSSync.exe	30
PID 1460 wrote to memory of 832	1460	BCSSync.exe	30
PID 832 wrote to memory of 1912	832	BCSSync.exe	31
PID 832 wrote to memory of 1912	832	BCSSync.exe	31
PID 832 wrote to memory of 1912	832	BCSSync.exe	31
PID 832 wrote to memory of 1912	832	BCSSync.exe	31

C:\Users\Admin\AppData\Local\Temp\eaf9c4843e30f663da96a0a1217267a14faac56441962e00c9df348cd399c5ef.exe
"C:\Users\Admin\AppData\Local\Temp\eaf9c4843e30f663da96a0a1217267a14faac56441962e00c9df348cd399c5ef.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1080
- C:\Users\Admin\AppData\Local\Temp\eaf9c4843e30f663da96a0a1217267a14faac56441962e00c9df348cd399c5ef.exe
  "C:\Users\Admin\AppData\Local\Temp\eaf9c4843e30f663da96a0a1217267a14faac56441962e00c9df348cd399c5ef.exe"
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:884
- - 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\eaf9c4843e30f663da96a0a1217267a14faac56441962e00c9df348cd399c5ef.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1460
  - - 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\eaf9c4843e30f663da96a0a1217267a14faac56441962e00c9df348cd399c5ef.exe
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:832
    - - 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\eaf9c4843e30f663da96a0a1217267a14faac56441962e00c9df348cd399c5ef.exe
        5⤵
        
        PID:1912

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
35KB

MD5
4810f7d44e9a59ab0fb8f1bfee7f9aea

SHA1
613f63f4fe665a2f7160c08710a2d43c3ada0008

SHA256
246fe02a375d69e36ef1c0520ecac0727cbc2f7607649ef1450b8ca187ddc541

SHA512
dc47d7ecfc4502552db53f1aed0e6c15a8614e8b4cf8c3bea1d8e14c5e289e510ce2b807da86cefb944bbb15ca7a17d28959dae0b6781886f4b41c33c52d49d9

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

Filesize
35KB

MD5
4810f7d44e9a59ab0fb8f1bfee7f9aea

SHA1
613f63f4fe665a2f7160c08710a2d43c3ada0008

SHA256
246fe02a375d69e36ef1c0520ecac0727cbc2f7607649ef1450b8ca187ddc541

SHA512
dc47d7ecfc4502552db53f1aed0e6c15a8614e8b4cf8c3bea1d8e14c5e289e510ce2b807da86cefb944bbb15ca7a17d28959dae0b6781886f4b41c33c52d49d9

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

Filesize
35KB

MD5
4810f7d44e9a59ab0fb8f1bfee7f9aea

SHA1
613f63f4fe665a2f7160c08710a2d43c3ada0008

SHA256
246fe02a375d69e36ef1c0520ecac0727cbc2f7607649ef1450b8ca187ddc541

SHA512
dc47d7ecfc4502552db53f1aed0e6c15a8614e8b4cf8c3bea1d8e14c5e289e510ce2b807da86cefb944bbb15ca7a17d28959dae0b6781886f4b41c33c52d49d9

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

Filesize
35KB

MD5
4810f7d44e9a59ab0fb8f1bfee7f9aea

SHA1
613f63f4fe665a2f7160c08710a2d43c3ada0008

SHA256
246fe02a375d69e36ef1c0520ecac0727cbc2f7607649ef1450b8ca187ddc541

SHA512
dc47d7ecfc4502552db53f1aed0e6c15a8614e8b4cf8c3bea1d8e14c5e289e510ce2b807da86cefb944bbb15ca7a17d28959dae0b6781886f4b41c33c52d49d9

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

Filesize
35KB

MD5
4810f7d44e9a59ab0fb8f1bfee7f9aea

SHA1
613f63f4fe665a2f7160c08710a2d43c3ada0008

SHA256
246fe02a375d69e36ef1c0520ecac0727cbc2f7607649ef1450b8ca187ddc541

SHA512
dc47d7ecfc4502552db53f1aed0e6c15a8614e8b4cf8c3bea1d8e14c5e289e510ce2b807da86cefb944bbb15ca7a17d28959dae0b6781886f4b41c33c52d49d9

Download Submit
memory/832-91-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/884-54-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/884-65-0x0000000010000000-0x000000001000A000-memory.dmp

Filesize
40KB

Download
memory/884-69-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/884-63-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/884-60-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/884-94-0x0000000074661000-0x0000000074663000-memory.dmp

Filesize
8KB

Download
memory/884-64-0x0000000076411000-0x0000000076413000-memory.dmp

Filesize
8KB

Download
memory/884-58-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/884-57-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/884-56-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/884-55-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download

Analysis

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