a94ed2eb9bfc8524a165d86201349d0d2115291c7115551367c14a468ffc1f87

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
25-02-2024 07:37

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General

Target

a33a5184ac34a6a519f0320484c549b5.exe
Size

270KB
MD5

a33a5184ac34a6a519f0320484c549b5
SHA1

237f1bc4400e221faf4e4947b2e1ce51481a1c2e
SHA256

a94ed2eb9bfc8524a165d86201349d0d2115291c7115551367c14a468ffc1f87
SHA512

035090ee85e18e1649d785f8790c0d1b7cedea6267a4022367a08fe70dd10172a8ff619deb30d185c6f3dd114217eb2a71dbee1f0de022f720ea9d220c626289
SSDEEP

6144:es+IN9RS6LTa9Ar37L2We1zwYVlEkdqY/nMmS6H5el8BJN:fHMwm9AHebVKkdrH5eyr

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\\A33A51~1.EXE,"	a33a5184ac34a6a519f0320484c549b5.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2144-0-0x0000000000400000-0x0000000000589000-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-1-5-21-3316742141-2240921845-2885234760-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\userinit = "C:\\Users\\Admin\\AppData\\Local\\Temp\\A33A51~1.EXE"	a33a5184ac34a6a519f0320484c549b5.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\c6f56073 = "MNqz€–¥’ÚÕ?VBÝCÐ.DHwry\u008d6w;QyG\x16œžh,\x0e`Ò\x16ÐÂàvúÞQ\x15ËflõZ½\a÷\x164\x18\x7f6÷û\x13¤®ø<Qo\x04\a\x14\u0081ó§Â~d\\ô!\|Ë´Æd4?\x17\x1c½³\x1b~ú\x1d™\x13ìÿœ<Ì…ò'Y\x1c–›TZCÔ\n\x13Ç¹\x0e1Ì\x02l·UÑ…1Š\x1c‘B…£>µ]´\u0081>d~\f&<šÉò¡\v\rÙßON~Ò†ãÖB\x13ü\x1b,Rìõ1ìjÌ9{ì6b¬‘Í¢s\x7f\x15fÂ\\zÏ#\|–\ftôtuã\u008f\x1b”)$\x15¢OäT\n\x1b1d\|dÞ¦U”1õ\x06Läý\f„\t\u0081ÕÔ’'äƒô—R›j”ìAê\fìºùIäÂ\\\x02\nþkL¼\x1b'"	a33a5184ac34a6a519f0320484c549b5.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\System = "C:\\Users\\Admin\\AppData\\Local\\Temp\\A33A51~1.EXE"	a33a5184ac34a6a519f0320484c549b5.exe

Suspicious behavior: EnumeratesProcesses 50 IoCs

pid	Process
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe
2144	a33a5184ac34a6a519f0320484c549b5.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeSecurityPrivilege	2144	a33a5184ac34a6a519f0320484c549b5.exe
Token: SeSecurityPrivilege	2144	a33a5184ac34a6a519f0320484c549b5.exe
Token: SeSecurityPrivilege	2144	a33a5184ac34a6a519f0320484c549b5.exe
Token: SeSecurityPrivilege	2144	a33a5184ac34a6a519f0320484c549b5.exe

C:\Users\Admin\AppData\Local\Temp\a33a5184ac34a6a519f0320484c549b5.exe
"C:\Users\Admin\AppData\Local\Temp\a33a5184ac34a6a519f0320484c549b5.exe"
1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Modifies WinLogon
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2144

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/2144-0-0x0000000000400000-0x0000000000589000-memory.dmp

Filesize
1.5MB

Download
memory/2144-1-0x00000000006D0000-0x0000000000718000-memory.dmp

Filesize
288KB

Download
memory/2144-2-0x0000000000400000-0x0000000000589000-memory.dmp

Filesize
1.5MB

Download
memory/2144-4-0x0000000000B10000-0x0000000000BC2000-memory.dmp

Filesize
712KB

Download
memory/2144-5-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-7-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-9-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-10-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-42-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-41-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-44-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-48-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-46-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-52-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-53-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-57-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-60-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-64-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-67-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-70-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-72-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-75-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-80-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-83-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-85-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-88-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-89-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-91-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-93-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-95-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-98-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-97-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-101-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-103-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-105-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-107-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-109-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-111-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download
memory/2144-3852-0x00000000006D0000-0x0000000000718000-memory.dmp

Filesize
288KB

Download
memory/2144-4448-0x0000000000400000-0x0000000000589000-memory.dmp

Filesize
1.5MB

Download
memory/2144-5486-0x00000000028A0000-0x0000000002958000-memory.dmp

Filesize
736KB

Download