ac17cdb8ca4f8294c9037067030d6af2700e7e4581c0970194ddae36e7574d1c

General

Target

ac17cdb8ca4f8294c9037067030d6af2700e7e4581c0970194ddae36e7574d1c.exe
Size

693KB
MD5

2052ab705ccfa85fb5774b37270da426
SHA1

e0b698e165da8097f7ee8e691d98ae0e11b09c66
SHA256

ac17cdb8ca4f8294c9037067030d6af2700e7e4581c0970194ddae36e7574d1c
SHA512

8e6bd8f363503189ee9557f1eaf204ae4d488392c65aef72209b996727be4612bb5131144da555baca0372b359de849a89d241192774b622ad29c1655700bb05
SSDEEP

12288:AhkDgouVr2nxKkorvdRgQriDwOIxmxiZnYQE7PJc74a+jRfc3D:IRRJkcoQricOIQxiZY1pa+Jc3D

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1692	system.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
1572	netsh.exe

Drops startup file 2 IoCs

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

Loads dropped DLL 4 IoCs

pid	Process
916	ac17cdb8ca4f8294c9037067030d6af2700e7e4581c0970194ddae36e7574d1c.exe
916	ac17cdb8ca4f8294c9037067030d6af2700e7e4581c0970194ddae36e7574d1c.exe
916	ac17cdb8ca4f8294c9037067030d6af2700e7e4581c0970194ddae36e7574d1c.exe
916	ac17cdb8ca4f8294c9037067030d6af2700e7e4581c0970194ddae36e7574d1c.exe

Adds Run key to start application 2 TTPs 4 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\system.exe = "\"C:\\Users\\Admin\\AppData\\Roaming\\system.exe\""	system.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	system.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\system.exe = "\"C:\\Users\\Admin\\AppData\\Roaming\\system.exe\""	system.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run	system.exe

Enumerates connected drives 3 TTPs 24 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\f:	system.exe
File opened (read-only)	\??\j:	system.exe
File opened (read-only)	\??\o:	system.exe
File opened (read-only)	\??\w:	system.exe
File opened (read-only)	\??\a:	system.exe
File opened (read-only)	\??\b:	system.exe
File opened (read-only)	\??\g:	system.exe
File opened (read-only)	\??\t:	system.exe
File opened (read-only)	\??\v:	system.exe
File opened (read-only)	\??\y:	system.exe
File opened (read-only)	\??\x:	system.exe
File opened (read-only)	\??\h:	system.exe
File opened (read-only)	\??\l:	system.exe
File opened (read-only)	\??\m:	system.exe
File opened (read-only)	\??\p:	system.exe
File opened (read-only)	\??\q:	system.exe
File opened (read-only)	\??\r:	system.exe
File opened (read-only)	\??\z:	system.exe
File opened (read-only)	\??\e:	system.exe
File opened (read-only)	\??\i:	system.exe
File opened (read-only)	\??\k:	system.exe
File opened (read-only)	\??\n:	system.exe
File opened (read-only)	\??\s:	system.exe
File opened (read-only)	\??\u:	system.exe

AutoIT Executable 11 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/916-55-0x0000000000400000-0x00000000004CA000-memory.dmp	autoit_exe
behavioral1/files/0x000a000000012319-56.dat	autoit_exe
behavioral1/files/0x000a000000012319-57.dat	autoit_exe
behavioral1/files/0x000a000000012319-59.dat	autoit_exe
behavioral1/files/0x000a000000012319-58.dat	autoit_exe
behavioral1/memory/916-60-0x0000000003960000-0x0000000003A2A000-memory.dmp	autoit_exe
behavioral1/files/0x000a000000012319-63.dat	autoit_exe
behavioral1/memory/916-65-0x0000000000400000-0x00000000004CA000-memory.dmp	autoit_exe
behavioral1/files/0x000a000000012319-66.dat	autoit_exe
behavioral1/memory/1692-68-0x0000000000400000-0x00000000004CA000-memory.dmp	autoit_exe
behavioral1/memory/1692-71-0x0000000000400000-0x00000000004CA000-memory.dmp	autoit_exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 916 wrote to memory of 1692	916	ac17cdb8ca4f8294c9037067030d6af2700e7e4581c0970194ddae36e7574d1c.exe	28
PID 916 wrote to memory of 1692	916	ac17cdb8ca4f8294c9037067030d6af2700e7e4581c0970194ddae36e7574d1c.exe	28
PID 916 wrote to memory of 1692	916	ac17cdb8ca4f8294c9037067030d6af2700e7e4581c0970194ddae36e7574d1c.exe	28
PID 916 wrote to memory of 1692	916	ac17cdb8ca4f8294c9037067030d6af2700e7e4581c0970194ddae36e7574d1c.exe	28
PID 1692 wrote to memory of 1572	1692	system.exe	29
PID 1692 wrote to memory of 1572	1692	system.exe	29
PID 1692 wrote to memory of 1572	1692	system.exe	29
PID 1692 wrote to memory of 1572	1692	system.exe	29

C:\Users\Admin\AppData\Local\Temp\ac17cdb8ca4f8294c9037067030d6af2700e7e4581c0970194ddae36e7574d1c.exe
"C:\Users\Admin\AppData\Local\Temp\ac17cdb8ca4f8294c9037067030d6af2700e7e4581c0970194ddae36e7574d1c.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:916
- C:\Users\Admin\AppData\Roaming\system.exe
  "C:\Users\Admin\AppData\Roaming\system.exe" "del" C:\Users\Admin\AppData\Local\Temp\ac17cdb8ca4f8294c9037067030d6af2700e7e4581c0970194ddae36e7574d1c.exe
  2⤵
  - Executes dropped EXE
  - Drops startup file
  - Adds Run key to start application
  - Enumerates connected drives
  - Suspicious use of WriteProcessMemory
  PID:1692
- - C:\Windows\SysWOW64\netsh.exe
    "C:\Windows\System32\netsh.exe" firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\system.exe" "system.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:1572

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

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\system.exe

Filesize
693KB

MD5
2052ab705ccfa85fb5774b37270da426

SHA1
e0b698e165da8097f7ee8e691d98ae0e11b09c66

SHA256
ac17cdb8ca4f8294c9037067030d6af2700e7e4581c0970194ddae36e7574d1c

SHA512
8e6bd8f363503189ee9557f1eaf204ae4d488392c65aef72209b996727be4612bb5131144da555baca0372b359de849a89d241192774b622ad29c1655700bb05

Download Submit
C:\Users\Admin\AppData\Roaming\system.exe

Filesize
693KB

MD5
2052ab705ccfa85fb5774b37270da426

SHA1
e0b698e165da8097f7ee8e691d98ae0e11b09c66

SHA256
ac17cdb8ca4f8294c9037067030d6af2700e7e4581c0970194ddae36e7574d1c

SHA512
8e6bd8f363503189ee9557f1eaf204ae4d488392c65aef72209b996727be4612bb5131144da555baca0372b359de849a89d241192774b622ad29c1655700bb05

Download Submit
C:\Users\Admin\AppData\Roaming\system.exe.ini

Filesize
11B

MD5
301a3e5a5c08c60b2952122a97e1a838

SHA1
c85da2ebd9e1098eed686b8c74016bee728bb942

SHA256
89886e624db56b7f7e7a0a857fc7e63ebfffe9eb69b329489b79dd0a3e24f7fa

SHA512
ce1dcdad347d6c8e6a798b915f8a8d8ac1be4851c0064ab62e80aa85103a472f402b688e94950099a812db1134917fe9d51a7dfa0504e0174e94acdad8ee34d9

Download Submit
\Users\Admin\AppData\Roaming\system.exe

Filesize
693KB

MD5
2052ab705ccfa85fb5774b37270da426

SHA1
e0b698e165da8097f7ee8e691d98ae0e11b09c66

SHA256
ac17cdb8ca4f8294c9037067030d6af2700e7e4581c0970194ddae36e7574d1c

SHA512
8e6bd8f363503189ee9557f1eaf204ae4d488392c65aef72209b996727be4612bb5131144da555baca0372b359de849a89d241192774b622ad29c1655700bb05

Download Submit
\Users\Admin\AppData\Roaming\system.exe

Filesize
693KB

MD5
2052ab705ccfa85fb5774b37270da426

SHA1
e0b698e165da8097f7ee8e691d98ae0e11b09c66

SHA256
ac17cdb8ca4f8294c9037067030d6af2700e7e4581c0970194ddae36e7574d1c

SHA512
8e6bd8f363503189ee9557f1eaf204ae4d488392c65aef72209b996727be4612bb5131144da555baca0372b359de849a89d241192774b622ad29c1655700bb05

Download Submit
\Users\Admin\AppData\Roaming\system.exe

Filesize
693KB

MD5
2052ab705ccfa85fb5774b37270da426

SHA1
e0b698e165da8097f7ee8e691d98ae0e11b09c66

SHA256
ac17cdb8ca4f8294c9037067030d6af2700e7e4581c0970194ddae36e7574d1c

SHA512
8e6bd8f363503189ee9557f1eaf204ae4d488392c65aef72209b996727be4612bb5131144da555baca0372b359de849a89d241192774b622ad29c1655700bb05

Download Submit
\Users\Admin\AppData\Roaming\system.exe

Filesize
693KB

MD5
2052ab705ccfa85fb5774b37270da426

SHA1
e0b698e165da8097f7ee8e691d98ae0e11b09c66

SHA256
ac17cdb8ca4f8294c9037067030d6af2700e7e4581c0970194ddae36e7574d1c

SHA512
8e6bd8f363503189ee9557f1eaf204ae4d488392c65aef72209b996727be4612bb5131144da555baca0372b359de849a89d241192774b622ad29c1655700bb05

Download Submit
memory/916-61-0x0000000003960000-0x0000000003A2A000-memory.dmp

Filesize
808KB

Download
memory/916-60-0x0000000003960000-0x0000000003A2A000-memory.dmp

Filesize
808KB

Download
memory/916-65-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/916-54-0x0000000076711000-0x0000000076713000-memory.dmp

Filesize
8KB

Download
memory/916-55-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1692-68-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1692-71-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download

Analysis

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