e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940

Analysis

max time kernel
145s
max time network
183s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
06-11-2022 07:03

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General

Target

e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940.exe
Size

71KB
MD5

3b28a7c5e8b6337eb55bec4798dc4260
SHA1

4e67bc0458c499963089c61568a81a812ab9de58
SHA256

e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940
SHA512

8a93efb56bf029f06afc996eedfab3e97bde8b9984c3e63e73d99305ff6e6102cbb4a97a4019ebfd015d5dfbe2e1c5f30fef0b92310f55eda7b7ab84abf5b6cd
SSDEEP

1536:KKMonowh4ostPr2/kBmkWbpab+CtuMFxdWOo6CLvjs8wBjn/:Knonoros9Pkbpe+zOo6EwBjn/

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1872	BCSSync.exe
300	BCSSync.exe

Loads dropped DLL 2 IoCs

pid	Process
884	e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940.exe
884	e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940.exe

Unexpected DNS network traffic destination 10 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
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 1904 set thread context of 884	1904	e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940.exe	27
PID 1872 set thread context of 300	1872	BCSSync.exe	29

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe	e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940.exe
File created	C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe	e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940.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 2 IoCs

pid	Process
884	e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940.exe
300	BCSSync.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 1904 wrote to memory of 884	1904	e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940.exe	27
PID 1904 wrote to memory of 884	1904	e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940.exe	27
PID 1904 wrote to memory of 884	1904	e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940.exe	27
PID 1904 wrote to memory of 884	1904	e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940.exe	27
PID 1904 wrote to memory of 884	1904	e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940.exe	27
PID 1904 wrote to memory of 884	1904	e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940.exe	27
PID 1904 wrote to memory of 884	1904	e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940.exe	27
PID 1904 wrote to memory of 884	1904	e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940.exe	27
PID 1904 wrote to memory of 884	1904	e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940.exe	27
PID 1904 wrote to memory of 884	1904	e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940.exe	27
PID 884 wrote to memory of 1872	884	e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940.exe	28
PID 884 wrote to memory of 1872	884	e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940.exe	28
PID 884 wrote to memory of 1872	884	e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940.exe	28
PID 884 wrote to memory of 1872	884	e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940.exe	28
PID 1872 wrote to memory of 300	1872	BCSSync.exe	29
PID 1872 wrote to memory of 300	1872	BCSSync.exe	29
PID 1872 wrote to memory of 300	1872	BCSSync.exe	29
PID 1872 wrote to memory of 300	1872	BCSSync.exe	29
PID 1872 wrote to memory of 300	1872	BCSSync.exe	29
PID 1872 wrote to memory of 300	1872	BCSSync.exe	29
PID 1872 wrote to memory of 300	1872	BCSSync.exe	29
PID 1872 wrote to memory of 300	1872	BCSSync.exe	29
PID 1872 wrote to memory of 300	1872	BCSSync.exe	29
PID 1872 wrote to memory of 300	1872	BCSSync.exe	29
PID 300 wrote to memory of 1960	300	BCSSync.exe	30
PID 300 wrote to memory of 1960	300	BCSSync.exe	30
PID 300 wrote to memory of 1960	300	BCSSync.exe	30
PID 300 wrote to memory of 1960	300	BCSSync.exe	30

C:\Users\Admin\AppData\Local\Temp\e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940.exe
"C:\Users\Admin\AppData\Local\Temp\e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1904
- C:\Users\Admin\AppData\Local\Temp\e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940.exe
  "C:\Users\Admin\AppData\Local\Temp\e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940.exe"
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - 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\e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1872
  - - 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\e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940.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\e7844109becc275be0e7baa21d368090ce8a1129659156033be0c01acae5b940.exe
        5⤵
        
        PID:1960

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

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
71KB

MD5
0fa7a37aa313c2856ebc1ea6b5cba74a

SHA1
59f5401a9ec84d6ec7ffce595c002143d71cbef0

SHA256
3c563d0144b5100badfb12b17876c60c7796f7c7ecb9108e73814418ee70dc2c

SHA512
8caaa1103b93529d6ed27136f58235ce5e66edf19f3bed7cfee9e427d1975e2fe882ed8128fdd012da031b7e7be0a73414b3286d9a0df2060d51c2ee1b3b2384

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

Filesize
71KB

MD5
0fa7a37aa313c2856ebc1ea6b5cba74a

SHA1
59f5401a9ec84d6ec7ffce595c002143d71cbef0

SHA256
3c563d0144b5100badfb12b17876c60c7796f7c7ecb9108e73814418ee70dc2c

SHA512
8caaa1103b93529d6ed27136f58235ce5e66edf19f3bed7cfee9e427d1975e2fe882ed8128fdd012da031b7e7be0a73414b3286d9a0df2060d51c2ee1b3b2384

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

Filesize
71KB

MD5
0fa7a37aa313c2856ebc1ea6b5cba74a

SHA1
59f5401a9ec84d6ec7ffce595c002143d71cbef0

SHA256
3c563d0144b5100badfb12b17876c60c7796f7c7ecb9108e73814418ee70dc2c

SHA512
8caaa1103b93529d6ed27136f58235ce5e66edf19f3bed7cfee9e427d1975e2fe882ed8128fdd012da031b7e7be0a73414b3286d9a0df2060d51c2ee1b3b2384

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

Filesize
71KB

MD5
0fa7a37aa313c2856ebc1ea6b5cba74a

SHA1
59f5401a9ec84d6ec7ffce595c002143d71cbef0

SHA256
3c563d0144b5100badfb12b17876c60c7796f7c7ecb9108e73814418ee70dc2c

SHA512
8caaa1103b93529d6ed27136f58235ce5e66edf19f3bed7cfee9e427d1975e2fe882ed8128fdd012da031b7e7be0a73414b3286d9a0df2060d51c2ee1b3b2384

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

Filesize
71KB

MD5
0fa7a37aa313c2856ebc1ea6b5cba74a

SHA1
59f5401a9ec84d6ec7ffce595c002143d71cbef0

SHA256
3c563d0144b5100badfb12b17876c60c7796f7c7ecb9108e73814418ee70dc2c

SHA512
8caaa1103b93529d6ed27136f58235ce5e66edf19f3bed7cfee9e427d1975e2fe882ed8128fdd012da031b7e7be0a73414b3286d9a0df2060d51c2ee1b3b2384

Download Submit
memory/300-83-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/300-87-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/884-59-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/884-65-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

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

Filesize
36KB

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

Filesize
36KB

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

Filesize
36KB

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

Filesize
36KB

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

Filesize
36KB

Download
memory/884-64-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/884-84-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/884-63-0x00000000762D1000-0x00000000762D3000-memory.dmp

Filesize
8KB

Download