caae72a918fd4ee10d71445a4d09355b116de4247b37159d1607d2bf5e49883b

General

Target

caae72a918fd4ee10d71445a4d09355b116de4247b37159d1607d2bf5e49883b.exe
Size

419KB
MD5

0c85f8e37afb7b1bf85ad3d38746ec90
SHA1

b725e2e59964812866eb92cfef09fe5bef3f6d93
SHA256

caae72a918fd4ee10d71445a4d09355b116de4247b37159d1607d2bf5e49883b
SHA512

e87e42c8664681d2b9d5abe899466486635ad6a799fd0632e43b4428a700d3cca45869b04a71f53c1bbf63b9411cab4a626b7b91773f7317e4cb489aa2451e53
SSDEEP

12288:1g2MA3Mw3Ewq/4QhSQTS7jb90EFwDviaPAm:F33v3EwVQmykqiaPP

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4512	System.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
2188	netsh.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4876-132-0x0000000000350000-0x000000000043D000-memory.dmp	upx
behavioral2/files/0x0006000000022e59-134.dat	upx
behavioral2/files/0x0006000000022e59-135.dat	upx
behavioral2/memory/4512-136-0x0000000000AB0000-0x0000000000B9D000-memory.dmp	upx
behavioral2/memory/4876-138-0x0000000000350000-0x000000000043D000-memory.dmp	upx
behavioral2/memory/4512-140-0x0000000000AB0000-0x0000000000B9D000-memory.dmp	upx

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	System.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	caae72a918fd4ee10d71445a4d09355b116de4247b37159d1607d2bf5e49883b.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

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run	System.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System.exe = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\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\\Local\\Temp\\System.exe\""	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)	\??\a:	System.exe
File opened (read-only)	\??\f:	System.exe
File opened (read-only)	\??\p:	System.exe
File opened (read-only)	\??\r:	System.exe
File opened (read-only)	\??\e:	System.exe
File opened (read-only)	\??\g:	System.exe
File opened (read-only)	\??\h:	System.exe
File opened (read-only)	\??\j:	System.exe
File opened (read-only)	\??\k:	System.exe
File opened (read-only)	\??\l:	System.exe
File opened (read-only)	\??\n:	System.exe
File opened (read-only)	\??\o:	System.exe
File opened (read-only)	\??\w:	System.exe
File opened (read-only)	\??\x:	System.exe
File opened (read-only)	\??\y:	System.exe
File opened (read-only)	\??\z:	System.exe
File opened (read-only)	\??\b:	System.exe
File opened (read-only)	\??\i:	System.exe
File opened (read-only)	\??\q:	System.exe
File opened (read-only)	\??\t:	System.exe
File opened (read-only)	\??\u:	System.exe
File opened (read-only)	\??\m:	System.exe
File opened (read-only)	\??\s:	System.exe
File opened (read-only)	\??\v:	System.exe

AutoIT Executable 3 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/4512-136-0x0000000000AB0000-0x0000000000B9D000-memory.dmp	autoit_exe
behavioral2/memory/4876-138-0x0000000000350000-0x000000000043D000-memory.dmp	autoit_exe
behavioral2/memory/4512-140-0x0000000000AB0000-0x0000000000B9D000-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 6 IoCs

description	pid	Process	procid_target
PID 4876 wrote to memory of 4512	4876	caae72a918fd4ee10d71445a4d09355b116de4247b37159d1607d2bf5e49883b.exe	80
PID 4876 wrote to memory of 4512	4876	caae72a918fd4ee10d71445a4d09355b116de4247b37159d1607d2bf5e49883b.exe	80
PID 4876 wrote to memory of 4512	4876	caae72a918fd4ee10d71445a4d09355b116de4247b37159d1607d2bf5e49883b.exe	80
PID 4512 wrote to memory of 2188	4512	System.exe	82
PID 4512 wrote to memory of 2188	4512	System.exe	82
PID 4512 wrote to memory of 2188	4512	System.exe	82

C:\Users\Admin\AppData\Local\Temp\caae72a918fd4ee10d71445a4d09355b116de4247b37159d1607d2bf5e49883b.exe
"C:\Users\Admin\AppData\Local\Temp\caae72a918fd4ee10d71445a4d09355b116de4247b37159d1607d2bf5e49883b.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4876
- C:\Users\Admin\AppData\Local\Temp\System.exe
  "C:\Users\Admin\AppData\Local\Temp\System.exe" "del" C:\Users\Admin\AppData\Local\Temp\caae72a918fd4ee10d71445a4d09355b116de4247b37159d1607d2bf5e49883b.exe
  2⤵
  - Executes dropped EXE
  - Checks computer location settings
  - Drops startup file
  - Adds Run key to start application
  - Enumerates connected drives
  - Suspicious use of WriteProcessMemory
  PID:4512
- - C:\Windows\SysWOW64\netsh.exe
    "C:\Windows\System32\netsh.exe" firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\System.exe" "System.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:2188

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

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\System.exe

Filesize
419KB

MD5
0c85f8e37afb7b1bf85ad3d38746ec90

SHA1
b725e2e59964812866eb92cfef09fe5bef3f6d93

SHA256
caae72a918fd4ee10d71445a4d09355b116de4247b37159d1607d2bf5e49883b

SHA512
e87e42c8664681d2b9d5abe899466486635ad6a799fd0632e43b4428a700d3cca45869b04a71f53c1bbf63b9411cab4a626b7b91773f7317e4cb489aa2451e53

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

Filesize
419KB

MD5
0c85f8e37afb7b1bf85ad3d38746ec90

SHA1
b725e2e59964812866eb92cfef09fe5bef3f6d93

SHA256
caae72a918fd4ee10d71445a4d09355b116de4247b37159d1607d2bf5e49883b

SHA512
e87e42c8664681d2b9d5abe899466486635ad6a799fd0632e43b4428a700d3cca45869b04a71f53c1bbf63b9411cab4a626b7b91773f7317e4cb489aa2451e53

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

Filesize
11B

MD5
301a3e5a5c08c60b2952122a97e1a838

SHA1
c85da2ebd9e1098eed686b8c74016bee728bb942

SHA256
89886e624db56b7f7e7a0a857fc7e63ebfffe9eb69b329489b79dd0a3e24f7fa

SHA512
ce1dcdad347d6c8e6a798b915f8a8d8ac1be4851c0064ab62e80aa85103a472f402b688e94950099a812db1134917fe9d51a7dfa0504e0174e94acdad8ee34d9

Download Submit
memory/4512-136-0x0000000000AB0000-0x0000000000B9D000-memory.dmp

Filesize
948KB

Download
memory/4512-140-0x0000000000AB0000-0x0000000000B9D000-memory.dmp

Filesize
948KB

Download
memory/4876-132-0x0000000000350000-0x000000000043D000-memory.dmp

Filesize
948KB

Download
memory/4876-138-0x0000000000350000-0x000000000043D000-memory.dmp

Filesize
948KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads