90b4d48a560f9f0a36cda2f6522e1e5499db94c376fe4c4f5f0ef6d09bd5be4d

Analysis

max time kernel
139s
max time network
156s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
01-12-2022 01:21

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General

Target

90b4d48a560f9f0a36cda2f6522e1e5499db94c376fe4c4f5f0ef6d09bd5be4d.exe
Size

287KB
MD5

7099ebe12d1229a6700e41a1e8fb2306
SHA1

c6646fd6c3295cf4507604d5a6e13bd3ce9d4424
SHA256

90b4d48a560f9f0a36cda2f6522e1e5499db94c376fe4c4f5f0ef6d09bd5be4d
SHA512

00457e024c372f8023aeb0ba324d351d259b17f047d80ed6b9054fcd7159274210378f17a5aef33b11a3c28946bc4388c5cfbf82c2a9345479782ac9c34c748f
SSDEEP

6144:atwxm2tOHRMdTBUnUBK2MflHHiezy85dEJkMsOD:vAHRBU6HHiemwEJb

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

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\\90B4D4~1.EXE,"	90b4d48a560f9f0a36cda2f6522e1e5499db94c376fe4c4f5f0ef6d09bd5be4d.exe

Adds Run key to start application 2 TTPs 1 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\userinit = "C:\\Users\\Admin\\AppData\\Local\\Temp\\90B4D4~1.EXE"	90b4d48a560f9f0a36cda2f6522e1e5499db94c376fe4c4f5f0ef6d09bd5be4d.exe

Modifies WinLogon 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\991a101f = "C7e\fÄÂI(\\vM4>¡—2Ð³þ\x02Ù 4‘E)øËáQ®†ètèu\x1fQ\\\x14\u0090~”kÕ\x1c\x10IEÔn¹¢[¸¯\x13Eœ£Ý\fðn¶u‰ìTm2ÄBü×Uù\x1fs[u±\x15·Jo×\a¹“\x18—=pÐGž\u00ad\x05ÄÁnÀq³Ç\bo«Koó‰iº©‰KñÅ\x1a‹\x13q—\x05!goÍ¡rÁ\x1f§\vo!¹‹¯½ƒG}øšh•ïàé¸j\x1d0• ùm/Ù§ˆµª\x7fuÂc\"!-¯\x1d!¥P‰¹5óáJèÑkåï™ûðxð\x01\x1bzŸó`\x11'\x0fÂíHy5o\x15\u008d±U\u0081Ák}H£y\x01`Ù]"	90b4d48a560f9f0a36cda2f6522e1e5499db94c376fe4c4f5f0ef6d09bd5be4d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\System = "C:\\Users\\Admin\\AppData\\Local\\Temp\\90B4D4~1.EXE"	90b4d48a560f9f0a36cda2f6522e1e5499db94c376fe4c4f5f0ef6d09bd5be4d.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1652	90b4d48a560f9f0a36cda2f6522e1e5499db94c376fe4c4f5f0ef6d09bd5be4d.exe
1652	90b4d48a560f9f0a36cda2f6522e1e5499db94c376fe4c4f5f0ef6d09bd5be4d.exe
1652	90b4d48a560f9f0a36cda2f6522e1e5499db94c376fe4c4f5f0ef6d09bd5be4d.exe
1652	90b4d48a560f9f0a36cda2f6522e1e5499db94c376fe4c4f5f0ef6d09bd5be4d.exe
1652	90b4d48a560f9f0a36cda2f6522e1e5499db94c376fe4c4f5f0ef6d09bd5be4d.exe
1652	90b4d48a560f9f0a36cda2f6522e1e5499db94c376fe4c4f5f0ef6d09bd5be4d.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeSecurityPrivilege	1652	90b4d48a560f9f0a36cda2f6522e1e5499db94c376fe4c4f5f0ef6d09bd5be4d.exe
Token: SeSecurityPrivilege	1652	90b4d48a560f9f0a36cda2f6522e1e5499db94c376fe4c4f5f0ef6d09bd5be4d.exe
Token: SeSecurityPrivilege	1652	90b4d48a560f9f0a36cda2f6522e1e5499db94c376fe4c4f5f0ef6d09bd5be4d.exe
Token: SeSecurityPrivilege	1652	90b4d48a560f9f0a36cda2f6522e1e5499db94c376fe4c4f5f0ef6d09bd5be4d.exe

C:\Users\Admin\AppData\Local\Temp\90b4d48a560f9f0a36cda2f6522e1e5499db94c376fe4c4f5f0ef6d09bd5be4d.exe
"C:\Users\Admin\AppData\Local\Temp\90b4d48a560f9f0a36cda2f6522e1e5499db94c376fe4c4f5f0ef6d09bd5be4d.exe"
1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Modifies WinLogon
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1652

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1652-54-0x0000000076041000-0x0000000076043000-memory.dmp

Filesize
8KB

Download
memory/1652-55-0x000000007EF40000-0x000000007EFA9000-memory.dmp

Filesize
420KB

Download
memory/1652-56-0x0000000000400000-0x0000000000548000-memory.dmp

Filesize
1.3MB

Download
memory/1652-57-0x000000007EF40000-0x000000007EFA9000-memory.dmp

Filesize
420KB

Download
memory/1652-59-0x00000000020F0000-0x00000000021A2000-memory.dmp

Filesize
712KB

Download
memory/1652-58-0x00000000020F0000-0x00000000021A2000-memory.dmp

Filesize
712KB

Download
memory/1652-60-0x00000000020F0000-0x00000000021A2000-memory.dmp

Filesize
712KB

Download
memory/1652-62-0x00000000020F0000-0x00000000021A2000-memory.dmp

Filesize
712KB

Download
memory/1652-63-0x00000000020F0000-0x00000000021A2000-memory.dmp

Filesize
712KB

Download
memory/1652-65-0x00000000020F0000-0x00000000021A2000-memory.dmp

Filesize
712KB

Download
memory/1652-66-0x00000000026B0000-0x0000000002768000-memory.dmp

Filesize
736KB

Download
memory/1652-67-0x00000000026B0000-0x0000000002768000-memory.dmp

Filesize
736KB

Download