55bb7f8a526844e3d01ff00fdc908ede0cadf5ecfd04a7c85aefef19fa359ac7

General

Target

55bb7f8a526844e3d01ff00fdc908ede0cadf5ecfd04a7c85aefef19fa359ac7.exe
Size

1.2MB
MD5

f236c9586a1d84e4befa380d17716b9f
SHA1

d8adf5adfc7e7359f13ab9cba1409de9d6280677
SHA256

55bb7f8a526844e3d01ff00fdc908ede0cadf5ecfd04a7c85aefef19fa359ac7
SHA512

dfa5f859e7d0a4e965e8c150962ec7b637e7e6aed7406f09ba7416df4ae0427349f5e408dde050d8f8d16b6782843619f8ed0e06de83895a98b3c5b4c87545ba
SSDEEP

6144:2BDHmrz4niNy8o3Zp/TWt+g4RQTDUBO8/2vh+ziDV8m56TBac2Gud:wDHmoniNy8L8g4RgoBO8/2vhDX56Tk

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2576	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
1040	DBSever0.EXE

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\WDDBSever0.EXE = "\"C:\\Windows\\DBSever0.EXE\" /Auto"	DBSever0.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WDDBSever0.EXE = "\"C:\\Windows\\DBSever0.EXE\" /Auto"	DBSever0.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\WDDBSever0.EXE = "\"C:\\Windows\\DBSever0.EXE\" /Auto"	55bb7f8a526844e3d01ff00fdc908ede0cadf5ecfd04a7c85aefef19fa359ac7.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\DBSever0.EXE	55bb7f8a526844e3d01ff00fdc908ede0cadf5ecfd04a7c85aefef19fa359ac7.exe
File created	C:\Windows\DBSever0.EXE	55bb7f8a526844e3d01ff00fdc908ede0cadf5ecfd04a7c85aefef19fa359ac7.exe
File opened for modification	C:\Windows\DBSever0.KInf	DBSever0.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 3 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	55bb7f8a526844e3d01ff00fdc908ede0cadf5ecfd04a7c85aefef19fa359ac7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DBSever0.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1040	DBSever0.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 1040	2244	55bb7f8a526844e3d01ff00fdc908ede0cadf5ecfd04a7c85aefef19fa359ac7.exe	28
PID 2244 wrote to memory of 1040	2244	55bb7f8a526844e3d01ff00fdc908ede0cadf5ecfd04a7c85aefef19fa359ac7.exe	28
PID 2244 wrote to memory of 1040	2244	55bb7f8a526844e3d01ff00fdc908ede0cadf5ecfd04a7c85aefef19fa359ac7.exe	28
PID 2244 wrote to memory of 1040	2244	55bb7f8a526844e3d01ff00fdc908ede0cadf5ecfd04a7c85aefef19fa359ac7.exe	28
PID 2244 wrote to memory of 2576	2244	55bb7f8a526844e3d01ff00fdc908ede0cadf5ecfd04a7c85aefef19fa359ac7.exe	29
PID 2244 wrote to memory of 2576	2244	55bb7f8a526844e3d01ff00fdc908ede0cadf5ecfd04a7c85aefef19fa359ac7.exe	29
PID 2244 wrote to memory of 2576	2244	55bb7f8a526844e3d01ff00fdc908ede0cadf5ecfd04a7c85aefef19fa359ac7.exe	29
PID 2244 wrote to memory of 2576	2244	55bb7f8a526844e3d01ff00fdc908ede0cadf5ecfd04a7c85aefef19fa359ac7.exe	29

C:\Users\Admin\AppData\Local\Temp\55bb7f8a526844e3d01ff00fdc908ede0cadf5ecfd04a7c85aefef19fa359ac7.exe
"C:\Users\Admin\AppData\Local\Temp\55bb7f8a526844e3d01ff00fdc908ede0cadf5ecfd04a7c85aefef19fa359ac7.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2244
- C:\Windows\DBSever0.EXE
  C:\Windows\DBSever0.EXE
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1040
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\Temp0.bat" "
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2576

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\Temp0.bat

Filesize
302B

MD5
1b1859e4c34ad4f5d9a31774c2b8a210

SHA1
999bc36810bd145478f1b9f248395bc864867197

SHA256
38745fcda1766ec3a2323f76956d39b96c54b7a6725c91e0b743b260e6964f7b

SHA512
6c1ed2b0dbaf9f4b86e62555646887d8c6f8c2049dc5b5859ed04ceb0003e2e9d7b33f42e7a3c92b2ae7a5be36ee1b91091919c425e77c459860ac6c685c82ff

Download Submit
C:\Windows\DBSever0.EXE

Filesize
1.2MB

MD5
61c0639afbe07737b1af548134a61cc8

SHA1
a9809828a6be8fe5feb4113d9e1f7158693378df

SHA256
293111670f3603a3ea2dce5aca5ef6860697d4a0908104145782d92a9a35c395

SHA512
c90e81ca485de2659ff7fbbdc15d813880ae29c996b863ae9973a84054ff1890cbc3dff39e60ffa1df4980d646d6d0be3491460c74560c72a975040ee566e92e

Download Submit
memory/1040-15-0x0000000010000000-0x0000000010073000-memory.dmp

Filesize
460KB

Download
memory/1040-17-0x0000000010000000-0x0000000010073000-memory.dmp

Filesize
460KB

Download
memory/2244-13-0x0000000010000000-0x0000000010073000-memory.dmp

Filesize
460KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads