61d323a34366f397fdc75e163c6c9bd3e56992a6455a01f1d86c18d1c11462ba

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
13/02/2024, 17:58

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General

Target

99c7a4dc491e0d0339cc54821a882b87.exe
Size

282KB
MD5

99c7a4dc491e0d0339cc54821a882b87
SHA1

94b0bc61aa0bb9d7e685a109c7d452f0a0651c7a
SHA256

61d323a34366f397fdc75e163c6c9bd3e56992a6455a01f1d86c18d1c11462ba
SHA512

8235306082279448d951fceceffc906dc9451bedc552b81a8ccfe435c8c851b8301dfccd651b9e072bf34718663e1f9c5c3a71661134420228f1a1c3a5e2c4aa
SSDEEP

6144:6Zw2TxWX/f48zO7gtwua+Japo5iCb8lseuxw/6YF1M:uFTxWYMh5qoLb8LCy9E

Score

10^/10

persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Temp\\99C7A4~1.EXE,"	99c7a4dc491e0d0339cc54821a882b87.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3872-0-0x0000000000400000-0x000000000062D000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\userinit = "C:\\Users\\Admin\\AppData\\Local\\Temp\\99C7A4~1.EXE"	99c7a4dc491e0d0339cc54821a882b87.exe

Modifies WinLogon 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\2efef9b2 = "G\x06ˆ÷÷a†¦à•ðÑC\x1c°ctÔ`ë°M\u0090Î;\aµÁÆ@¡É†îÓ\u009dém}R†ß(eÛÙôâ,a\x11\x1d\u008fïÈˆôhÍ}~JÞô%\u009dÀ©¼\aÚ²Š\\\x04}\\RîªªêÚ¢âTý\x1c‚”\"¤ª\x14\f¼\u00ad*\"TmôT´µJ\fš\"\x14e>\x1c\x14]ÍÔd\x16\x1c\\5\\\\²´\u008dd>ô:’Bœ<tì\x0eTTFÔ\x0eÒŠÍ\x14ZÚJ\x06Üâ>þ”TTduÄ\x15\x05Œ\x1a´„ú¤l]rLN2l”Æ\fžVÄn•Ò$l\"Ä¬$šbŒ\x12\fD„”Œ2Ò\|Ò´´…\x1c²ªÄD>²¼ìU\x1c\fNFÒò^E\x14•4Z\|üLBâÔ´Dì¾’\x14µêÖ2}Tn\|â”\x12þ\x1cR^ÒÔ\x1cì"	99c7a4dc491e0d0339cc54821a882b87.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\System = "C:\\Users\\Admin\\AppData\\Local\\Temp\\99C7A4~1.EXE"	99c7a4dc491e0d0339cc54821a882b87.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe
3872	99c7a4dc491e0d0339cc54821a882b87.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeSecurityPrivilege	3872	99c7a4dc491e0d0339cc54821a882b87.exe
Token: SeSecurityPrivilege	3872	99c7a4dc491e0d0339cc54821a882b87.exe
Token: SeSecurityPrivilege	3872	99c7a4dc491e0d0339cc54821a882b87.exe
Token: SeSecurityPrivilege	3872	99c7a4dc491e0d0339cc54821a882b87.exe

C:\Users\Admin\AppData\Local\Temp\99c7a4dc491e0d0339cc54821a882b87.exe
"C:\Users\Admin\AppData\Local\Temp\99c7a4dc491e0d0339cc54821a882b87.exe"
1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Modifies WinLogon
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3872

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3872-0-0x0000000000400000-0x000000000062D000-memory.dmp

Filesize
2.2MB

Download
memory/3872-1-0x0000000000BF0000-0x0000000000C3A000-memory.dmp

Filesize
296KB

Download
memory/3872-2-0x0000000000400000-0x000000000062D000-memory.dmp

Filesize
2.2MB

Download
memory/3872-4-0x0000000002400000-0x00000000024B2000-memory.dmp

Filesize
712KB

Download
memory/3872-6-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-8-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-10-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-11-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-59-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-60-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-61-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-62-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-63-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-65-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-67-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-73-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-71-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-75-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-70-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-78-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-79-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-82-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-81-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-84-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-87-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-91-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-89-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-93-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-96-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-97-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-99-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-100-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-101-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-102-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-103-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-104-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-105-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-106-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-107-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-108-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-109-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-110-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-111-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-112-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-113-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-114-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download
memory/3872-2148-0x0000000000BF0000-0x0000000000C3A000-memory.dmp

Filesize
296KB

Download
memory/3872-2191-0x0000000000400000-0x000000000062D000-memory.dmp

Filesize
2.2MB

Download
memory/3872-2194-0x0000000002630000-0x00000000026E8000-memory.dmp

Filesize
736KB

Download