49c33a9bb9e5ffbe3a86d33ae3fb6c58633b81aad43547591be10126841ef6d0

General

Target

a6b7ad43678fd4beb5910c67a637a6b0N.exe
Size

159KB
MD5

a6b7ad43678fd4beb5910c67a637a6b0
SHA1

e28cdb51e85c9edd29cb7c6099ae29bef4991325
SHA256

49c33a9bb9e5ffbe3a86d33ae3fb6c58633b81aad43547591be10126841ef6d0
SHA512

50f03fc12e96be7cca21a1ff9a391fbd9eba3f1af926994b1f72182fb008cd4d3658230c3a710747a2d6dc8da477f6cd705a6bc85fcb399994ec190fd99ebe54
SSDEEP

3072:tx1TajppFJN7hyH8He6am2iQPgpKoVjM3N9XZbcqZcquHRg:r1TaFpR7UIttrQGvC991c+cD

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
3580	BCSSync.exe
800	BCSSync.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\BCSSync = "\"C:\\Users\\Admin\\AppData\\Roaming\\BCSSync.lnk\""	BCSSync.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4752 set thread context of 3148	4752	a6b7ad43678fd4beb5910c67a637a6b0N.exe	87
PID 3580 set thread context of 800	3580	BCSSync.exe	89

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\9729134	BCSSync.exe
File created	C:\Windows\9729134	a6b7ad43678fd4beb5910c67a637a6b0N.exe
File created	C:\Windows\BCSSync.exe	a6b7ad43678fd4beb5910c67a637a6b0N.exe
File opened for modification	C:\Windows\BCSSync.exe	a6b7ad43678fd4beb5910c67a637a6b0N.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a6b7ad43678fd4beb5910c67a637a6b0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a6b7ad43678fd4beb5910c67a637a6b0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	BCSSync.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	BCSSync.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
800	BCSSync.exe
800	BCSSync.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeSecurityPrivilege	3148	a6b7ad43678fd4beb5910c67a637a6b0N.exe
Token: SeDebugPrivilege	3148	a6b7ad43678fd4beb5910c67a637a6b0N.exe
Token: SeSecurityPrivilege	800	BCSSync.exe
Token: SeDebugPrivilege	800	BCSSync.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4752 wrote to memory of 3148	4752	a6b7ad43678fd4beb5910c67a637a6b0N.exe	87
PID 4752 wrote to memory of 3148	4752	a6b7ad43678fd4beb5910c67a637a6b0N.exe	87
PID 4752 wrote to memory of 3148	4752	a6b7ad43678fd4beb5910c67a637a6b0N.exe	87
PID 4752 wrote to memory of 3148	4752	a6b7ad43678fd4beb5910c67a637a6b0N.exe	87
PID 4752 wrote to memory of 3148	4752	a6b7ad43678fd4beb5910c67a637a6b0N.exe	87
PID 4752 wrote to memory of 3148	4752	a6b7ad43678fd4beb5910c67a637a6b0N.exe	87
PID 4752 wrote to memory of 3148	4752	a6b7ad43678fd4beb5910c67a637a6b0N.exe	87
PID 4752 wrote to memory of 3148	4752	a6b7ad43678fd4beb5910c67a637a6b0N.exe	87
PID 4752 wrote to memory of 3148	4752	a6b7ad43678fd4beb5910c67a637a6b0N.exe	87
PID 3148 wrote to memory of 3580	3148	a6b7ad43678fd4beb5910c67a637a6b0N.exe	88
PID 3148 wrote to memory of 3580	3148	a6b7ad43678fd4beb5910c67a637a6b0N.exe	88
PID 3148 wrote to memory of 3580	3148	a6b7ad43678fd4beb5910c67a637a6b0N.exe	88
PID 3580 wrote to memory of 800	3580	BCSSync.exe	89
PID 3580 wrote to memory of 800	3580	BCSSync.exe	89
PID 3580 wrote to memory of 800	3580	BCSSync.exe	89
PID 3580 wrote to memory of 800	3580	BCSSync.exe	89
PID 3580 wrote to memory of 800	3580	BCSSync.exe	89
PID 3580 wrote to memory of 800	3580	BCSSync.exe	89
PID 3580 wrote to memory of 800	3580	BCSSync.exe	89
PID 3580 wrote to memory of 800	3580	BCSSync.exe	89
PID 3580 wrote to memory of 800	3580	BCSSync.exe	89

C:\Users\Admin\AppData\Local\Temp\a6b7ad43678fd4beb5910c67a637a6b0N.exe
"C:\Users\Admin\AppData\Local\Temp\a6b7ad43678fd4beb5910c67a637a6b0N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4752
- C:\Users\Admin\AppData\Local\Temp\a6b7ad43678fd4beb5910c67a637a6b0N.exe
  "C:\Users\Admin\AppData\Local\Temp\a6b7ad43678fd4beb5910c67a637a6b0N.exe"
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3148
- - C:\Windows\BCSSync.exe
    "C:\Windows\BCSSync.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3580
  - - C:\Windows\BCSSync.exe
      "C:\Windows\BCSSync.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      Drops file in Windows directory
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:800

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\BCSSync.lnk

Filesize
803B

MD5
eec6cf54d079e95ced2776f9b73bf157

SHA1
b4c7f302e100539b478f766e05e5c2f9960cdbc2

SHA256
998e7fe28746076f4ba074ce0b9b2ad374036c90f8f780a8f3ee694f50f86ed6

SHA512
f4639fd3ee3511b4290faf82fc8a81579f98c983dd76c3401c52a5b1d910b2ecd26f834607ea43039ae12e5397c908109eaccf8ced03ecd350a73cccc9337ec3

Download Submit
C:\Windows\9729134

Filesize
1KB

MD5
c5175d0024bd98a6f19c86ad181baa01

SHA1
4ba57f936580b4731a865d7a27108af2dbeee0b4

SHA256
760027166c1f341cc1c12bcc2dc8115343b7defc9f9beb9ad6370230956c1c62

SHA512
51d48e57cc6baa70a2eec4f7234624e9d89cf0cf64427f1ebc845aca42efeb9efb07c3ee8462c9031516a56a046c6c974b7f8851f253cd647fc9c2038f982c53

Download Submit
C:\Windows\BCSSync.exe

Filesize
159KB

MD5
ca01af03180bf7c2a0d3ad5d5c5e2dac

SHA1
47be74886be0e595b8f27f9032e942fd8730199d

SHA256
3cf43ef09bc9e4ba1719adc9843cdea8ccfc3ba94c875df027400a673b8cdd68

SHA512
83448dbe53460ceee61f550cb48694be1b7057635d0bef0bba1370595dee6393f658c2c9f93a71c27b3e4f24f9528d6a34d96490b5441e04960097bd26c0ca5b

Download Submit
memory/800-100-0x0000000000FC0000-0x0000000000FD3000-memory.dmp

Filesize
76KB

Download
memory/800-73-0x0000000000FC0000-0x0000000000FD3000-memory.dmp

Filesize
76KB

Download
memory/800-72-0x0000000000FC0000-0x0000000000FD3000-memory.dmp

Filesize
76KB

Download
memory/3148-16-0x00000000006E0000-0x00000000006F3000-memory.dmp

Filesize
76KB

Download
memory/3148-7-0x00000000006E0000-0x00000000006F3000-memory.dmp

Filesize
76KB

Download
memory/3148-22-0x00000000006E0000-0x00000000006F3000-memory.dmp

Filesize
76KB

Download
memory/3148-21-0x00000000006E0000-0x00000000006F3000-memory.dmp

Filesize
76KB

Download
memory/3148-20-0x00000000006E0000-0x00000000006F3000-memory.dmp

Filesize
76KB

Download
memory/3148-19-0x00000000006E0000-0x00000000006F3000-memory.dmp

Filesize
76KB

Download
memory/3148-18-0x00000000006E0000-0x00000000006F3000-memory.dmp

Filesize
76KB

Download
memory/3148-17-0x00000000006E0000-0x00000000006F3000-memory.dmp

Filesize
76KB

Download
memory/3148-5-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3148-11-0x00000000006E0000-0x00000000006F3000-memory.dmp

Filesize
76KB

Download
memory/3148-10-0x00000000006E0000-0x00000000006F3000-memory.dmp

Filesize
76KB

Download
memory/3148-9-0x00000000006E0000-0x00000000006F3000-memory.dmp

Filesize
76KB

Download
memory/3148-8-0x00000000006E0000-0x00000000006F3000-memory.dmp

Filesize
76KB

Download
memory/3148-23-0x0000000000720000-0x0000000000721000-memory.dmp

Filesize
4KB

Download
memory/3148-6-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3148-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3148-1-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3148-24-0x00000000006E0000-0x00000000006F3000-memory.dmp

Filesize
76KB

Download
memory/3148-13-0x00000000006E0000-0x00000000006F3000-memory.dmp

Filesize
76KB

Download
memory/3148-14-0x00000000006E0000-0x00000000006F3000-memory.dmp

Filesize
76KB

Download
memory/3148-15-0x00000000006E0000-0x00000000006F3000-memory.dmp

Filesize
76KB

Download
memory/3148-12-0x00000000006E0000-0x00000000006F3000-memory.dmp

Filesize
76KB

Download
memory/3148-88-0x00000000006E0000-0x00000000006F3000-memory.dmp

Filesize
76KB

Download
memory/3148-3-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4752-0-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads