7bdf7008dff8fd0c2f09d32c930641e72b00c94864f1bebc1e0336f0353070d9

General

Target

c3b3353bebc2d81df44b3ffa94b57599d92ad694.exe
Size

339KB
MD5

8df81fe85eb46567491d0fc8e1f8aff8
SHA1

c3b3353bebc2d81df44b3ffa94b57599d92ad694
SHA256

7bdf7008dff8fd0c2f09d32c930641e72b00c94864f1bebc1e0336f0353070d9
SHA512

4ce25bd8efa3d9d9dfcaf7cc9389ee42cb4d44dc01d4836c3c7427144d0dfcb185d4a12dd8cccd97edb0598f4a84ad4a115767b2b43a71ba69c69c79b9ad8fa0
SSDEEP

6144:uXUXyc1A2i0or/7Oou1c5K6wwt3dfJqhxfmbTziCSZXfu5zp7:uEXZ1vQTnu1cfwaZctmbTz/SZXfu5zp7

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
680	bamtp.exe

Deletes itself 1 IoCs

pid	Process
1168	cmd.exe

Loads dropped DLL 3 IoCs

pid	Process
1168	cmd.exe
1168	cmd.exe
680	bamtp.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce	c3b3353bebc2d81df44b3ffa94b57599d92ad694.exe

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

System Information Discovery
T1082

Kills process with taskkill 1 IoCs

evasion

pid	Process
1792	taskkill.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
972	PING.EXE

Suspicious behavior: EnumeratesProcesses 45 IoCs

pid	Process
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1792	taskkill.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe
680	bamtp.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1672 wrote to memory of 1168	1672	c3b3353bebc2d81df44b3ffa94b57599d92ad694.exe	27
PID 1672 wrote to memory of 1168	1672	c3b3353bebc2d81df44b3ffa94b57599d92ad694.exe	27
PID 1672 wrote to memory of 1168	1672	c3b3353bebc2d81df44b3ffa94b57599d92ad694.exe	27
PID 1672 wrote to memory of 1168	1672	c3b3353bebc2d81df44b3ffa94b57599d92ad694.exe	27
PID 1168 wrote to memory of 1792	1168	cmd.exe	29
PID 1168 wrote to memory of 1792	1168	cmd.exe	29
PID 1168 wrote to memory of 1792	1168	cmd.exe	29
PID 1168 wrote to memory of 1792	1168	cmd.exe	29
PID 1168 wrote to memory of 972	1168	cmd.exe	31
PID 1168 wrote to memory of 972	1168	cmd.exe	31
PID 1168 wrote to memory of 972	1168	cmd.exe	31
PID 1168 wrote to memory of 972	1168	cmd.exe	31
PID 1168 wrote to memory of 680	1168	cmd.exe	32
PID 1168 wrote to memory of 680	1168	cmd.exe	32
PID 1168 wrote to memory of 680	1168	cmd.exe	32
PID 1168 wrote to memory of 680	1168	cmd.exe	32

C:\Users\Admin\AppData\Local\Temp\c3b3353bebc2d81df44b3ffa94b57599d92ad694.exe
"C:\Users\Admin\AppData\Local\Temp\c3b3353bebc2d81df44b3ffa94b57599d92ad694.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1672
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /f /pid 1672 & ping -n 3 127.1 & del /f /q "C:\Users\Admin\AppData\Local\Temp\c3b3353bebc2d81df44b3ffa94b57599d92ad694.exe" & start C:\Users\Admin\AppData\Local\bamtp.exe -f
  2⤵
  - Deletes itself
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1168
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /f /pid 1672
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1792
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 3 127.1
    3⤵
    - Runs ping.exe
    PID:972
- - C:\Users\Admin\AppData\Local\bamtp.exe
    C:\Users\Admin\AppData\Local\bamtp.exe -f
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SendNotifyMessage
    PID:680

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Remote System Discovery

1

T1018

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\bamtp.exe

Filesize
339KB

MD5
8df81fe85eb46567491d0fc8e1f8aff8

SHA1
c3b3353bebc2d81df44b3ffa94b57599d92ad694

SHA256
7bdf7008dff8fd0c2f09d32c930641e72b00c94864f1bebc1e0336f0353070d9

SHA512
4ce25bd8efa3d9d9dfcaf7cc9389ee42cb4d44dc01d4836c3c7427144d0dfcb185d4a12dd8cccd97edb0598f4a84ad4a115767b2b43a71ba69c69c79b9ad8fa0

Download Submit
C:\Users\Admin\AppData\Local\bamtp.exe

Filesize
339KB

MD5
8df81fe85eb46567491d0fc8e1f8aff8

SHA1
c3b3353bebc2d81df44b3ffa94b57599d92ad694

SHA256
7bdf7008dff8fd0c2f09d32c930641e72b00c94864f1bebc1e0336f0353070d9

SHA512
4ce25bd8efa3d9d9dfcaf7cc9389ee42cb4d44dc01d4836c3c7427144d0dfcb185d4a12dd8cccd97edb0598f4a84ad4a115767b2b43a71ba69c69c79b9ad8fa0

Download Submit
\Users\Admin\AppData\Local\bamtp.exe

Filesize
339KB

MD5
8df81fe85eb46567491d0fc8e1f8aff8

SHA1
c3b3353bebc2d81df44b3ffa94b57599d92ad694

SHA256
7bdf7008dff8fd0c2f09d32c930641e72b00c94864f1bebc1e0336f0353070d9

SHA512
4ce25bd8efa3d9d9dfcaf7cc9389ee42cb4d44dc01d4836c3c7427144d0dfcb185d4a12dd8cccd97edb0598f4a84ad4a115767b2b43a71ba69c69c79b9ad8fa0

Download Submit
\Users\Admin\AppData\Local\bamtp.exe

Filesize
339KB

MD5
8df81fe85eb46567491d0fc8e1f8aff8

SHA1
c3b3353bebc2d81df44b3ffa94b57599d92ad694

SHA256
7bdf7008dff8fd0c2f09d32c930641e72b00c94864f1bebc1e0336f0353070d9

SHA512
4ce25bd8efa3d9d9dfcaf7cc9389ee42cb4d44dc01d4836c3c7427144d0dfcb185d4a12dd8cccd97edb0598f4a84ad4a115767b2b43a71ba69c69c79b9ad8fa0

Download Submit
\Users\Admin\AppData\Local\bamtp.exe

Filesize
339KB

MD5
8df81fe85eb46567491d0fc8e1f8aff8

SHA1
c3b3353bebc2d81df44b3ffa94b57599d92ad694

SHA256
7bdf7008dff8fd0c2f09d32c930641e72b00c94864f1bebc1e0336f0353070d9

SHA512
4ce25bd8efa3d9d9dfcaf7cc9389ee42cb4d44dc01d4836c3c7427144d0dfcb185d4a12dd8cccd97edb0598f4a84ad4a115767b2b43a71ba69c69c79b9ad8fa0

Download Submit
memory/680-70-0x0000000001000000-0x00000000010A7000-memory.dmp

Filesize
668KB

Download
memory/680-69-0x0000000001000000-0x00000000010A7000-memory.dmp

Filesize
668KB

Download
memory/1672-54-0x0000000001000000-0x00000000010A7000-memory.dmp

Filesize
668KB

Download
memory/1672-58-0x0000000001000000-0x00000000010A7000-memory.dmp

Filesize
668KB

Download
memory/1672-56-0x0000000001000000-0x00000000010A7000-memory.dmp

Filesize
668KB

Download
memory/1672-55-0x0000000075841000-0x0000000075843000-memory.dmp

Filesize
8KB

Download

Analysis

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