20013f0870aab37d17d673d8145b4448a7546774e491621349e2b61a490bd55e

General

Target

20013f0870aab37d17d673d8145b4448a7546774e491621349e2b61a490bd55e.exe
Size

19KB
MD5

3000ab1d8caf5d17203517504a17de79
SHA1

6efd354aed37ace90e14cfb91af387c35a09f53f
SHA256

20013f0870aab37d17d673d8145b4448a7546774e491621349e2b61a490bd55e
SHA512

e053dcac64fe682fc2b5270f910c9b59cb109aca723a8476754ab1f1e304ec2416e04ef4a433a5bd91696e6c40ceb4f3d2cf4b5c6e94bb0148ca2785b4889f24
SSDEEP

384:hImHzL9EtvzxClMftkAvne8MJyNCaYSXmNGUeMFPNrW1p2m:h2tbxiMfKAvefJ9PS9MPNrW1f

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1992	windspl.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0007000000005c50-55.dat	upx
behavioral1/memory/1476-56-0x0000000000400000-0x0000000000410000-memory.dmp	upx
behavioral1/memory/1476-57-0x00000000023E0000-0x00000000023F0000-memory.dmp	upx
behavioral1/files/0x0007000000005c50-60.dat	upx
behavioral1/files/0x0007000000005c50-58.dat	upx
behavioral1/files/0x0007000000005c50-62.dat	upx
behavioral1/memory/1992-63-0x0000000000400000-0x0000000000410000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
1476	20013f0870aab37d17d673d8145b4448a7546774e491621349e2b61a490bd55e.exe
1476	20013f0870aab37d17d673d8145b4448a7546774e491621349e2b61a490bd55e.exe

Adds Run key to start application 2 TTPs 6 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\DsplObjects = "C:\\Windows\\system32\\windspl.exe"	20013f0870aab37d17d673d8145b4448a7546774e491621349e2b61a490bd55e.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	windspl.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	windspl.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\DsplObjects = "C:\\Windows\\system32\\windspl.exe"	windspl.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	20013f0870aab37d17d673d8145b4448a7546774e491621349e2b61a490bd55e.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	20013f0870aab37d17d673d8145b4448a7546774e491621349e2b61a490bd55e.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\windspl.exe	20013f0870aab37d17d673d8145b4448a7546774e491621349e2b61a490bd55e.exe
File created	C:\Windows\SysWOW64\windspl.exe	20013f0870aab37d17d673d8145b4448a7546774e491621349e2b61a490bd55e.exe
File opened for modification	C:\Windows\SysWOW64\windspl.exe	windspl.exe
File created	C:\Windows\SysWOW64\windspl.exe	windspl.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 AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1476	20013f0870aab37d17d673d8145b4448a7546774e491621349e2b61a490bd55e.exe
Token: SeDebugPrivilege	1992	windspl.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1476 wrote to memory of 1992	1476	20013f0870aab37d17d673d8145b4448a7546774e491621349e2b61a490bd55e.exe	27
PID 1476 wrote to memory of 1992	1476	20013f0870aab37d17d673d8145b4448a7546774e491621349e2b61a490bd55e.exe	27
PID 1476 wrote to memory of 1992	1476	20013f0870aab37d17d673d8145b4448a7546774e491621349e2b61a490bd55e.exe	27
PID 1476 wrote to memory of 1992	1476	20013f0870aab37d17d673d8145b4448a7546774e491621349e2b61a490bd55e.exe	27

C:\Users\Admin\AppData\Local\Temp\20013f0870aab37d17d673d8145b4448a7546774e491621349e2b61a490bd55e.exe
"C:\Users\Admin\AppData\Local\Temp\20013f0870aab37d17d673d8145b4448a7546774e491621349e2b61a490bd55e.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1476
- C:\Windows\SysWOW64\windspl.exe
  "C:\Windows\system32\windspl.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  PID:1992

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\windspl.exe

Filesize
19KB

MD5
3000ab1d8caf5d17203517504a17de79

SHA1
6efd354aed37ace90e14cfb91af387c35a09f53f

SHA256
20013f0870aab37d17d673d8145b4448a7546774e491621349e2b61a490bd55e

SHA512
e053dcac64fe682fc2b5270f910c9b59cb109aca723a8476754ab1f1e304ec2416e04ef4a433a5bd91696e6c40ceb4f3d2cf4b5c6e94bb0148ca2785b4889f24

Download Submit
C:\Windows\SysWOW64\windspl.exe

Filesize
19KB

MD5
3000ab1d8caf5d17203517504a17de79

SHA1
6efd354aed37ace90e14cfb91af387c35a09f53f

SHA256
20013f0870aab37d17d673d8145b4448a7546774e491621349e2b61a490bd55e

SHA512
e053dcac64fe682fc2b5270f910c9b59cb109aca723a8476754ab1f1e304ec2416e04ef4a433a5bd91696e6c40ceb4f3d2cf4b5c6e94bb0148ca2785b4889f24

Download Submit
\Windows\SysWOW64\windspl.exe

Filesize
19KB

MD5
3000ab1d8caf5d17203517504a17de79

SHA1
6efd354aed37ace90e14cfb91af387c35a09f53f

SHA256
20013f0870aab37d17d673d8145b4448a7546774e491621349e2b61a490bd55e

SHA512
e053dcac64fe682fc2b5270f910c9b59cb109aca723a8476754ab1f1e304ec2416e04ef4a433a5bd91696e6c40ceb4f3d2cf4b5c6e94bb0148ca2785b4889f24

Download Submit
\Windows\SysWOW64\windspl.exe

Filesize
19KB

MD5
3000ab1d8caf5d17203517504a17de79

SHA1
6efd354aed37ace90e14cfb91af387c35a09f53f

SHA256
20013f0870aab37d17d673d8145b4448a7546774e491621349e2b61a490bd55e

SHA512
e053dcac64fe682fc2b5270f910c9b59cb109aca723a8476754ab1f1e304ec2416e04ef4a433a5bd91696e6c40ceb4f3d2cf4b5c6e94bb0148ca2785b4889f24

Download Submit
memory/1476-54-0x0000000075E51000-0x0000000075E53000-memory.dmp

Filesize
8KB

Download
memory/1476-56-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/1476-57-0x00000000023E0000-0x00000000023F0000-memory.dmp

Filesize
64KB

Download
memory/1992-63-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing