25f9c5de666dcab498ee3374d04e2676f8042efbdabac9a3dc22b0f9d8178599

General

Target

25f9c5de666dcab498ee3374d04e2676f8042efbdabac9a3dc22b0f9d8178599.exe
Size

105KB
MD5

92b8044298e64dafbe500f5d8cd54220
SHA1

78a35503cdc9f577bf06c3d2def327efbda62304
SHA256

25f9c5de666dcab498ee3374d04e2676f8042efbdabac9a3dc22b0f9d8178599
SHA512

d654d594ee800d6baf5e79b12a604531f368f79383fcd91c73be12d49da92853be3ce5b151c4d5bfb97d1ba375e5ac01c3f684098adb360cceaec2e1d0e5c0c3
SSDEEP

3072:W7MwMUtk0uAnfaM3wRQqo/h60Vtvolup5hd8:W7Mfs3T6mvolup

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1760	dz.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
948	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7ba524dd08658fea9df0da94332a5d09.exe	dz.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7ba524dd08658fea9df0da94332a5d09.exe	dz.exe

Loads dropped DLL 2 IoCs

pid	Process
968	25f9c5de666dcab498ee3374d04e2676f8042efbdabac9a3dc22b0f9d8178599.exe
968	25f9c5de666dcab498ee3374d04e2676f8042efbdabac9a3dc22b0f9d8178599.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\7ba524dd08658fea9df0da94332a5d09 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\dz.exe\" .."	dz.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\7ba524dd08658fea9df0da94332a5d09 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\dz.exe\" .."	dz.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\security.config.cch.new	25f9c5de666dcab498ee3374d04e2676f8042efbdabac9a3dc22b0f9d8178599.exe
File created	C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\enterprisesec.config.cch.new	25f9c5de666dcab498ee3374d04e2676f8042efbdabac9a3dc22b0f9d8178599.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 18 IoCs

pid	Process
1760	dz.exe
1760	dz.exe
1760	dz.exe
1760	dz.exe
1760	dz.exe
1760	dz.exe
1760	dz.exe
1760	dz.exe
1760	dz.exe
1760	dz.exe
1760	dz.exe
1760	dz.exe
1760	dz.exe
1760	dz.exe
1760	dz.exe
1760	dz.exe
1760	dz.exe
1760	dz.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1760	dz.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 968 wrote to memory of 1760	968	25f9c5de666dcab498ee3374d04e2676f8042efbdabac9a3dc22b0f9d8178599.exe	28
PID 968 wrote to memory of 1760	968	25f9c5de666dcab498ee3374d04e2676f8042efbdabac9a3dc22b0f9d8178599.exe	28
PID 968 wrote to memory of 1760	968	25f9c5de666dcab498ee3374d04e2676f8042efbdabac9a3dc22b0f9d8178599.exe	28
PID 968 wrote to memory of 1760	968	25f9c5de666dcab498ee3374d04e2676f8042efbdabac9a3dc22b0f9d8178599.exe	28
PID 1760 wrote to memory of 948	1760	dz.exe	29
PID 1760 wrote to memory of 948	1760	dz.exe	29
PID 1760 wrote to memory of 948	1760	dz.exe	29
PID 1760 wrote to memory of 948	1760	dz.exe	29

C:\Users\Admin\AppData\Local\Temp\25f9c5de666dcab498ee3374d04e2676f8042efbdabac9a3dc22b0f9d8178599.exe
"C:\Users\Admin\AppData\Local\Temp\25f9c5de666dcab498ee3374d04e2676f8042efbdabac9a3dc22b0f9d8178599.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:968
- C:\Users\Admin\AppData\Local\Temp\dz.exe
  "C:\Users\Admin\AppData\Local\Temp\dz.exe"
  2⤵
  - Executes dropped EXE
  - Drops startup file
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1760
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\dz.exe" "dz.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:948

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

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\Temp\dz.exe

Filesize
105KB

MD5
92b8044298e64dafbe500f5d8cd54220

SHA1
78a35503cdc9f577bf06c3d2def327efbda62304

SHA256
25f9c5de666dcab498ee3374d04e2676f8042efbdabac9a3dc22b0f9d8178599

SHA512
d654d594ee800d6baf5e79b12a604531f368f79383fcd91c73be12d49da92853be3ce5b151c4d5bfb97d1ba375e5ac01c3f684098adb360cceaec2e1d0e5c0c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\dz.exe

Filesize
105KB

MD5
92b8044298e64dafbe500f5d8cd54220

SHA1
78a35503cdc9f577bf06c3d2def327efbda62304

SHA256
25f9c5de666dcab498ee3374d04e2676f8042efbdabac9a3dc22b0f9d8178599

SHA512
d654d594ee800d6baf5e79b12a604531f368f79383fcd91c73be12d49da92853be3ce5b151c4d5bfb97d1ba375e5ac01c3f684098adb360cceaec2e1d0e5c0c3

Download Submit
\Users\Admin\AppData\Local\Temp\dz.exe

Filesize
105KB

MD5
92b8044298e64dafbe500f5d8cd54220

SHA1
78a35503cdc9f577bf06c3d2def327efbda62304

SHA256
25f9c5de666dcab498ee3374d04e2676f8042efbdabac9a3dc22b0f9d8178599

SHA512
d654d594ee800d6baf5e79b12a604531f368f79383fcd91c73be12d49da92853be3ce5b151c4d5bfb97d1ba375e5ac01c3f684098adb360cceaec2e1d0e5c0c3

Download Submit
\Users\Admin\AppData\Local\Temp\dz.exe

Filesize
105KB

MD5
92b8044298e64dafbe500f5d8cd54220

SHA1
78a35503cdc9f577bf06c3d2def327efbda62304

SHA256
25f9c5de666dcab498ee3374d04e2676f8042efbdabac9a3dc22b0f9d8178599

SHA512
d654d594ee800d6baf5e79b12a604531f368f79383fcd91c73be12d49da92853be3ce5b151c4d5bfb97d1ba375e5ac01c3f684098adb360cceaec2e1d0e5c0c3

Download Submit
memory/968-54-0x0000000075501000-0x0000000075503000-memory.dmp

Filesize
8KB

Download
memory/968-55-0x0000000074840000-0x0000000074DEB000-memory.dmp

Filesize
5.7MB

Download
memory/968-65-0x0000000074840000-0x0000000074DEB000-memory.dmp

Filesize
5.7MB

Download
memory/1760-63-0x0000000074840000-0x0000000074DEB000-memory.dmp

Filesize
5.7MB

Download
memory/1760-66-0x0000000074840000-0x0000000074DEB000-memory.dmp

Filesize
5.7MB

Download

Analysis

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