bd3553c4061c9a8482f236090371a5bac949db98eaaad0190665020372ef81a8

Analysis

max time kernel
142s
max time network
152s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
03-12-2022 14:11

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General

Target

bd3553c4061c9a8482f236090371a5bac949db98eaaad0190665020372ef81a8.exe
Size

327KB
MD5

62dae689b3b349310f5211e5d0ef821c
SHA1

bc199b00f95c4996ac9187876f55558e92c00ee8
SHA256

bd3553c4061c9a8482f236090371a5bac949db98eaaad0190665020372ef81a8
SHA512

71cca697c7d7b3691c1213eecfde0a37738e4f9734f3d6820a0799783f830ed58e26c5764212d80aba160cf60a1b56b5b912957f683396ac9866f6747900cd92
SSDEEP

6144:1ZSMmlht5MWW3IBoTv5l92+bPnonxV3pT0x5jXvN2vw/c3XRu7:1ZKMTIWVuNnxVR07XvNz/cR4

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\\BD3553~1.EXE,"	bd3553c4061c9a8482f236090371a5bac949db98eaaad0190665020372ef81a8.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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\userinit = "C:\\Users\\Admin\\AppData\\Local\\Temp\\BD3553~1.EXE"	bd3553c4061c9a8482f236090371a5bac949db98eaaad0190665020372ef81a8.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\53fc24df = "¡\bÈ3\u008f=`y\x14Û!€à³Ð“µú5øpO0V!2‹\x12ýÚq\tANô=Ïôß\t\x0f*&£%Žís–Šd$¢‚¥¤\x01\x1d”õÞ\x18\r/.\x1f\x1ag&\t"	bd3553c4061c9a8482f236090371a5bac949db98eaaad0190665020372ef81a8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\System = "C:\\Users\\Admin\\AppData\\Local\\Temp\\BD3553~1.EXE"	bd3553c4061c9a8482f236090371a5bac949db98eaaad0190665020372ef81a8.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
868	bd3553c4061c9a8482f236090371a5bac949db98eaaad0190665020372ef81a8.exe
868	bd3553c4061c9a8482f236090371a5bac949db98eaaad0190665020372ef81a8.exe
868	bd3553c4061c9a8482f236090371a5bac949db98eaaad0190665020372ef81a8.exe
868	bd3553c4061c9a8482f236090371a5bac949db98eaaad0190665020372ef81a8.exe
868	bd3553c4061c9a8482f236090371a5bac949db98eaaad0190665020372ef81a8.exe
868	bd3553c4061c9a8482f236090371a5bac949db98eaaad0190665020372ef81a8.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeSecurityPrivilege	868	bd3553c4061c9a8482f236090371a5bac949db98eaaad0190665020372ef81a8.exe
Token: SeSecurityPrivilege	868	bd3553c4061c9a8482f236090371a5bac949db98eaaad0190665020372ef81a8.exe
Token: SeSecurityPrivilege	868	bd3553c4061c9a8482f236090371a5bac949db98eaaad0190665020372ef81a8.exe
Token: SeSecurityPrivilege	868	bd3553c4061c9a8482f236090371a5bac949db98eaaad0190665020372ef81a8.exe

C:\Users\Admin\AppData\Local\Temp\bd3553c4061c9a8482f236090371a5bac949db98eaaad0190665020372ef81a8.exe
"C:\Users\Admin\AppData\Local\Temp\bd3553c4061c9a8482f236090371a5bac949db98eaaad0190665020372ef81a8.exe"
1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Modifies WinLogon
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:868

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/868-54-0x000000007EF40000-0x000000007EFA9000-memory.dmp

Filesize
420KB

Download
memory/868-55-0x0000000075131000-0x0000000075133000-memory.dmp

Filesize
8KB

Download
memory/868-56-0x0000000000400000-0x0000000000500000-memory.dmp

Filesize
1024KB

Download
memory/868-57-0x000000007EF40000-0x000000007EFA9000-memory.dmp

Filesize
420KB

Download
memory/868-59-0x0000000002570000-0x0000000002622000-memory.dmp

Filesize
712KB

Download
memory/868-58-0x0000000002570000-0x0000000002622000-memory.dmp

Filesize
712KB

Download
memory/868-60-0x0000000002570000-0x0000000002622000-memory.dmp

Filesize
712KB

Download
memory/868-63-0x0000000002570000-0x0000000002622000-memory.dmp

Filesize
712KB

Download
memory/868-62-0x0000000002570000-0x0000000002622000-memory.dmp

Filesize
712KB

Download
memory/868-65-0x0000000002570000-0x0000000002622000-memory.dmp

Filesize
712KB

Download
memory/868-66-0x0000000002730000-0x00000000027E8000-memory.dmp

Filesize
736KB

Download
memory/868-67-0x0000000002730000-0x00000000027E8000-memory.dmp

Filesize
736KB

Download