bc347bbdb40ad2db62197b179b4b97ee43550d5da9256e36885b655576b9fc16

Analysis

max time kernel
6s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
01-01-2024 20:43

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General

Target

3dd70c1a25aadcd716584f06b99e0816.exe
Size

56KB
MD5

3dd70c1a25aadcd716584f06b99e0816
SHA1

d3ed24396ca46be81163a519347d15abec4fde3d
SHA256

bc347bbdb40ad2db62197b179b4b97ee43550d5da9256e36885b655576b9fc16
SHA512

00f9e208e582fa2c92cbfade2803baa1758752445d9f43e75651ca6fdabfcd180f118b5f2a407ecd55921bfd5d503a14233e86070bc37baa39433337d177b396
SSDEEP

1536:/p/kAjBt7aq80Us+NJX/yoOphTNgm/gIJt:B/9taxjX/3OpxNdt

Score

10^/10

persistence

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\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\Windows\\system32\\oembios.exe,"	3dd70c1a25aadcd716584f06b99e0816.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\oembios.exe	3dd70c1a25aadcd716584f06b99e0816.exe
File opened for modification	C:\Windows\SysWOW64\oembios.exe	3dd70c1a25aadcd716584f06b99e0816.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2300	3dd70c1a25aadcd716584f06b99e0816.exe
2300	3dd70c1a25aadcd716584f06b99e0816.exe
2300	3dd70c1a25aadcd716584f06b99e0816.exe
2300	3dd70c1a25aadcd716584f06b99e0816.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2300	3dd70c1a25aadcd716584f06b99e0816.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6
PID 2300 wrote to memory of 612	2300	3dd70c1a25aadcd716584f06b99e0816.exe	6

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:612

C:\Users\Admin\AppData\Local\Temp\3dd70c1a25aadcd716584f06b99e0816.exe
"C:\Users\Admin\AppData\Local\Temp\3dd70c1a25aadcd716584f06b99e0816.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2300

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

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/612-15-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/612-31-0x0000000037A60000-0x0000000037A89000-memory.dmp

Filesize
164KB

Download
memory/612-47-0x0000000037AC0000-0x0000000037AE9000-memory.dmp

Filesize
164KB

Download
memory/612-55-0x0000000037AF0000-0x0000000037B19000-memory.dmp

Filesize
164KB

Download
memory/612-71-0x0000000037B50000-0x0000000037B79000-memory.dmp

Filesize
164KB

Download
memory/612-79-0x0000000037B80000-0x0000000037BA9000-memory.dmp

Filesize
164KB

Download
memory/612-87-0x0000000037BB0000-0x0000000037BD9000-memory.dmp

Filesize
164KB

Download
memory/612-95-0x0000000037BE0000-0x0000000037C09000-memory.dmp

Filesize
164KB

Download
memory/612-111-0x0000000037C40000-0x0000000037C69000-memory.dmp

Filesize
164KB

Download
memory/612-119-0x0000000037C70000-0x0000000037C99000-memory.dmp

Filesize
164KB

Download
memory/612-135-0x0000000037CD0000-0x0000000037CF9000-memory.dmp

Filesize
164KB

Download
memory/612-143-0x0000000037D00000-0x0000000037D29000-memory.dmp

Filesize
164KB

Download
memory/612-159-0x0000000037D60000-0x0000000037D89000-memory.dmp

Filesize
164KB

Download
memory/612-167-0x0000000037D90000-0x0000000037DB9000-memory.dmp

Filesize
164KB

Download
memory/612-183-0x0000000037DF0000-0x0000000037E19000-memory.dmp

Filesize
164KB

Download
memory/612-191-0x0000000037E20000-0x0000000037E49000-memory.dmp

Filesize
164KB

Download
memory/612-199-0x0000000037E50000-0x0000000037E79000-memory.dmp

Filesize
164KB

Download
memory/612-215-0x0000000037EB0000-0x0000000037ED9000-memory.dmp

Filesize
164KB

Download
memory/612-223-0x0000000037EE0000-0x0000000037F09000-memory.dmp

Filesize
164KB

Download
memory/612-231-0x0000000037F10000-0x0000000037F39000-memory.dmp

Filesize
164KB

Download
memory/612-247-0x0000000037F70000-0x0000000037F99000-memory.dmp

Filesize
164KB

Download
memory/612-255-0x0000000037FA0000-0x0000000037FC9000-memory.dmp

Filesize
164KB

Download
memory/612-271-0x0000000038000000-0x0000000038029000-memory.dmp

Filesize
164KB

Download
memory/612-279-0x0000000038030000-0x0000000038059000-memory.dmp

Filesize
164KB

Download
memory/612-295-0x0000000038090000-0x00000000380B9000-memory.dmp

Filesize
164KB

Download
memory/612-303-0x00000000380C0000-0x00000000380E9000-memory.dmp

Filesize
164KB

Download
memory/612-319-0x0000000038120000-0x0000000038149000-memory.dmp

Filesize
164KB

Download
memory/612-327-0x0000000038150000-0x0000000038179000-memory.dmp

Filesize
164KB

Download
memory/612-335-0x0000000038180000-0x00000000381A9000-memory.dmp

Filesize
164KB

Download
memory/612-351-0x00000000381E0000-0x0000000038209000-memory.dmp

Filesize
164KB

Download
memory/612-367-0x0000000038240000-0x0000000038269000-memory.dmp

Filesize
164KB

Download
memory/612-375-0x0000000038270000-0x0000000038299000-memory.dmp

Filesize
164KB

Download
memory/612-383-0x00000000382A0000-0x00000000382C9000-memory.dmp

Filesize
164KB

Download
memory/612-399-0x0000000038300000-0x0000000038329000-memory.dmp

Filesize
164KB

Download
memory/612-407-0x0000000038330000-0x0000000038359000-memory.dmp

Filesize
164KB

Download
memory/612-423-0x0000000038390000-0x00000000383B9000-memory.dmp

Filesize
164KB

Download
memory/612-431-0x00000000383C0000-0x00000000383E9000-memory.dmp

Filesize
164KB

Download
memory/612-447-0x0000000038420000-0x0000000038449000-memory.dmp

Filesize
164KB

Download
memory/612-455-0x0000000038450000-0x0000000038479000-memory.dmp

Filesize
164KB

Download
memory/612-471-0x00000000384B0000-0x00000000384D9000-memory.dmp

Filesize
164KB

Download
memory/612-479-0x00000000384E0000-0x0000000038509000-memory.dmp

Filesize
164KB

Download
memory/612-487-0x0000000038510000-0x0000000038539000-memory.dmp

Filesize
164KB

Download
memory/612-503-0x0000000038570000-0x0000000038599000-memory.dmp

Filesize
164KB

Download
memory/612-495-0x0000000038540000-0x0000000038569000-memory.dmp

Filesize
164KB

Download
memory/612-463-0x0000000038480000-0x00000000384A9000-memory.dmp

Filesize
164KB

Download
memory/612-439-0x00000000383F0000-0x0000000038419000-memory.dmp

Filesize
164KB

Download
memory/612-415-0x0000000038360000-0x0000000038389000-memory.dmp

Filesize
164KB

Download
memory/612-391-0x00000000382D0000-0x00000000382F9000-memory.dmp

Filesize
164KB

Download
memory/612-359-0x0000000038210000-0x0000000038239000-memory.dmp

Filesize
164KB

Download
memory/612-343-0x00000000381B0000-0x00000000381D9000-memory.dmp

Filesize
164KB

Download
memory/612-311-0x00000000380F0000-0x0000000038119000-memory.dmp

Filesize
164KB

Download
memory/612-287-0x0000000038060000-0x0000000038089000-memory.dmp

Filesize
164KB

Download
memory/612-263-0x0000000037FD0000-0x0000000037FF9000-memory.dmp

Filesize
164KB

Download
memory/612-239-0x0000000037F40000-0x0000000037F69000-memory.dmp

Filesize
164KB

Download
memory/612-207-0x0000000037E80000-0x0000000037EA9000-memory.dmp

Filesize
164KB

Download
memory/612-175-0x0000000037DC0000-0x0000000037DE9000-memory.dmp

Filesize
164KB

Download
memory/612-151-0x0000000037D30000-0x0000000037D59000-memory.dmp

Filesize
164KB

Download
memory/612-127-0x0000000037CA0000-0x0000000037CC9000-memory.dmp

Filesize
164KB

Download
memory/612-103-0x0000000037C10000-0x0000000037C39000-memory.dmp

Filesize
164KB

Download
memory/612-63-0x0000000037B20000-0x0000000037B49000-memory.dmp

Filesize
164KB

Download
memory/612-39-0x0000000037A90000-0x0000000037AB9000-memory.dmp

Filesize
164KB

Download
memory/612-23-0x0000000037A30000-0x0000000037A59000-memory.dmp

Filesize
164KB

Download
memory/2300-0-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2300-3-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2300-1-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download