275d70db07f89259bcc478ce5da2259a0dc12b2dd630c8b0c6160e0b9a47e6bf

General

Target

1c481e608b35e1149d93ec1f9aefdf71.exe
Size

41KB
MD5

1c481e608b35e1149d93ec1f9aefdf71
SHA1

69c3ba5addfd49bb1824ff15334e0422d2c1ae65
SHA256

275d70db07f89259bcc478ce5da2259a0dc12b2dd630c8b0c6160e0b9a47e6bf
SHA512

3cb374039bc717e53fc9fdbf9f02a56b0688f7d99d2592eeb961719ab43922551b7f89267026332fd78464f497a7864558f2952eb7bab5f01498d00be0062dc8
SSDEEP

768:Bi6MbK0BYoGfqCZlySRO2woK/Z6YIhoFtQjXyEJvc8JzKZr12qhZhXX:cJWoYnqCjao/HzxCQzKZrYq5XX

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2804	BCSSync.exe
1980	BCSSync.exe

Loads dropped DLL 3 IoCs

pid	Process
1988	1c481e608b35e1149d93ec1f9aefdf71.exe
1988	1c481e608b35e1149d93ec1f9aefdf71.exe
2804	BCSSync.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 2444 set thread context of 1988	2444	1c481e608b35e1149d93ec1f9aefdf71.exe	16
PID 2804 set thread context of 1980	2804	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	1c481e608b35e1149d93ec1f9aefdf71.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe	1c481e608b35e1149d93ec1f9aefdf71.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Fonts\2i12hR.com	1c481e608b35e1149d93ec1f9aefdf71.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1988	1c481e608b35e1149d93ec1f9aefdf71.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2444	1c481e608b35e1149d93ec1f9aefdf71.exe
2804	BCSSync.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2444 wrote to memory of 1988	2444	1c481e608b35e1149d93ec1f9aefdf71.exe	16
PID 2444 wrote to memory of 1988	2444	1c481e608b35e1149d93ec1f9aefdf71.exe	16
PID 2444 wrote to memory of 1988	2444	1c481e608b35e1149d93ec1f9aefdf71.exe	16
PID 2444 wrote to memory of 1988	2444	1c481e608b35e1149d93ec1f9aefdf71.exe	16
PID 2444 wrote to memory of 1988	2444	1c481e608b35e1149d93ec1f9aefdf71.exe	16
PID 2444 wrote to memory of 1988	2444	1c481e608b35e1149d93ec1f9aefdf71.exe	16
PID 2444 wrote to memory of 1988	2444	1c481e608b35e1149d93ec1f9aefdf71.exe	16
PID 2444 wrote to memory of 1988	2444	1c481e608b35e1149d93ec1f9aefdf71.exe	16
PID 2444 wrote to memory of 1988	2444	1c481e608b35e1149d93ec1f9aefdf71.exe	16
PID 1988 wrote to memory of 2804	1988	1c481e608b35e1149d93ec1f9aefdf71.exe	30
PID 1988 wrote to memory of 2804	1988	1c481e608b35e1149d93ec1f9aefdf71.exe	30
PID 1988 wrote to memory of 2804	1988	1c481e608b35e1149d93ec1f9aefdf71.exe	30
PID 1988 wrote to memory of 2804	1988	1c481e608b35e1149d93ec1f9aefdf71.exe	30
PID 2804 wrote to memory of 1980	2804	BCSSync.exe	29
PID 2804 wrote to memory of 1980	2804	BCSSync.exe	29
PID 2804 wrote to memory of 1980	2804	BCSSync.exe	29
PID 2804 wrote to memory of 1980	2804	BCSSync.exe	29
PID 2804 wrote to memory of 1980	2804	BCSSync.exe	29
PID 2804 wrote to memory of 1980	2804	BCSSync.exe	29
PID 2804 wrote to memory of 1980	2804	BCSSync.exe	29
PID 2804 wrote to memory of 1980	2804	BCSSync.exe	29
PID 2804 wrote to memory of 1980	2804	BCSSync.exe	29
PID 1980 wrote to memory of 2860	1980	BCSSync.exe	31
PID 1980 wrote to memory of 2860	1980	BCSSync.exe	31
PID 1980 wrote to memory of 2860	1980	BCSSync.exe	31
PID 1980 wrote to memory of 2860	1980	BCSSync.exe	31

C:\Users\Admin\AppData\Local\Temp\1c481e608b35e1149d93ec1f9aefdf71.exe
"C:\Users\Admin\AppData\Local\Temp\1c481e608b35e1149d93ec1f9aefdf71.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Users\Admin\AppData\Local\Temp\1c481e608b35e1149d93ec1f9aefdf71.exe
  "C:\Users\Admin\AppData\Local\Temp\1c481e608b35e1149d93ec1f9aefdf71.exe"
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1988
- - 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\1c481e608b35e1149d93ec1f9aefdf71.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of WriteProcessMemory
    PID:2804

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\1c481e608b35e1149d93ec1f9aefdf71.exe
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1980
- 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\1c481e608b35e1149d93ec1f9aefdf71.exe
  2⤵
  PID:2860

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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
41KB

MD5
46090a2a835c603e79bcf904a47a5e3d

SHA1
7069c24cdb860df55a74a631b8c9a7b79c0705f5

SHA256
9ffc3f1924f678376035225d018111c5a87549463c00b63632da047295646067

SHA512
7a626977e6af58b76079f8c8fa8e82776a659b1fcc819f76c2161584b124fa08d9405c7c3919179da284367defb7dd857ac012bf4a9930031b99b0a84c86d405

Download Submit
memory/1980-48-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1988-12-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1988-10-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1988-8-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1988-14-0x0000000010000000-0x000000001000A000-memory.dmp

Filesize
40KB

Download
memory/1988-13-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1988-6-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1988-4-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1988-2-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1988-0-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download

Analysis

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