ca83832bf8e83ac9a97a01e589435b4666efa33d5f2f7f54b89dd58363e4a264

Analysis

max time kernel
150s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
07/01/2024, 19:35

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General

Target
a79c347cc0f264cc37d2c203a804ac58.exe
Size 194KB
Sample240107-ya4e5acfgj
SHA256 ca83832bf8e83ac9a97a01e589435b4666efa33d5f2f7f54b89dd58363e4a264
MD5 a79c347cc0f264cc37d2c203a804ac58
SHA1 0b2d6b3d3010cc005848deac046416d3dbdc48a9
SHA512 8aabaa15dc7b5774c8f0127c4f32a10f3bcd6d48516391206e75e0f60ad99a004cb7b3f2f133c6cc74f659a227b5c71ea15f204bffbe496ce45c582c9395383a
SSDEEP 3072:/OlHHBuNrVw61gCi+O5MUINLEXyI1x7TzM2exumeYJnssSTMiJN:/OlHhAVw6TLO5wFcyIvexumfZIMo
MD5 SHA1 SHA512 SSDEEP

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\\sdra64.exe,"	a79c347cc0f264cc37d2c203a804ac58.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\sdra64.exe	a79c347cc0f264cc37d2c203a804ac58.exe
File created	C:\Windows\SysWOW64\sdra64.exe	a79c347cc0f264cc37d2c203a804ac58.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3812	a79c347cc0f264cc37d2c203a804ac58.exe
3812	a79c347cc0f264cc37d2c203a804ac58.exe
3812	a79c347cc0f264cc37d2c203a804ac58.exe
3812	a79c347cc0f264cc37d2c203a804ac58.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3812	a79c347cc0f264cc37d2c203a804ac58.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3
PID 3812 wrote to memory of 620	3812	a79c347cc0f264cc37d2c203a804ac58.exe	3

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:620

C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe
"C:\Users\Admin\AppData\Local\Temp\a79c347cc0f264cc37d2c203a804ac58.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3812

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/620-13-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/620-23-0x00000000053F0000-0x0000000005407000-memory.dmp

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memory/620-28-0x0000000005410000-0x0000000005427000-memory.dmp

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memory/620-33-0x0000000005430000-0x0000000005447000-memory.dmp

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memory/620-43-0x0000000005470000-0x0000000005487000-memory.dmp

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memory/620-48-0x0000000005490000-0x00000000054A7000-memory.dmp

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memory/620-58-0x00000000054D0000-0x00000000054E7000-memory.dmp

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memory/620-63-0x00000000054F0000-0x0000000005507000-memory.dmp

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memory/620-68-0x0000000005510000-0x0000000005527000-memory.dmp

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memory/620-78-0x0000000005550000-0x0000000005567000-memory.dmp

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memory/620-88-0x0000000005590000-0x00000000055A7000-memory.dmp

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memory/620-93-0x00000000055B0000-0x00000000055C7000-memory.dmp

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memory/620-103-0x00000000055F0000-0x0000000005607000-memory.dmp

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memory/620-108-0x0000000005610000-0x0000000005627000-memory.dmp

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memory/620-118-0x0000000005650000-0x0000000005667000-memory.dmp

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memory/620-123-0x0000000005670000-0x0000000005687000-memory.dmp

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memory/620-133-0x00000000056B0000-0x00000000056C7000-memory.dmp

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memory/620-138-0x00000000056D0000-0x00000000056E7000-memory.dmp

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memory/620-148-0x0000000005710000-0x0000000005727000-memory.dmp

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memory/620-153-0x0000000005730000-0x0000000005747000-memory.dmp

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memory/620-143-0x00000000056F0000-0x0000000005707000-memory.dmp

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memory/620-128-0x0000000005690000-0x00000000056A7000-memory.dmp

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memory/620-158-0x0000000005750000-0x0000000005767000-memory.dmp

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memory/620-168-0x0000000005790000-0x00000000057A7000-memory.dmp

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memory/620-173-0x00000000057B0000-0x00000000057C7000-memory.dmp

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memory/620-178-0x00000000057D0000-0x00000000057E7000-memory.dmp

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memory/620-183-0x00000000057F0000-0x0000000005807000-memory.dmp

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memory/620-193-0x0000000005830000-0x0000000005847000-memory.dmp

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memory/620-198-0x0000000005850000-0x0000000005867000-memory.dmp

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memory/620-208-0x0000000005890000-0x00000000058A7000-memory.dmp

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memory/620-213-0x00000000058B0000-0x00000000058C7000-memory.dmp

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memory/620-223-0x00000000058F0000-0x0000000005907000-memory.dmp

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memory/620-228-0x0000000005910000-0x0000000005927000-memory.dmp

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memory/620-233-0x0000000005930000-0x0000000005947000-memory.dmp

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memory/620-243-0x0000000005970000-0x0000000005987000-memory.dmp

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memory/620-248-0x0000000005990000-0x00000000059A7000-memory.dmp

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memory/620-258-0x00000000059D0000-0x00000000059E7000-memory.dmp

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memory/620-263-0x00000000059F0000-0x0000000005A07000-memory.dmp

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memory/620-268-0x0000000005A10000-0x0000000005A27000-memory.dmp

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memory/620-278-0x0000000005A50000-0x0000000005A67000-memory.dmp

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memory/620-283-0x0000000005A70000-0x0000000005A87000-memory.dmp

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memory/620-293-0x0000000005AB0000-0x0000000005AC7000-memory.dmp

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memory/620-298-0x0000000005AD0000-0x0000000005AE7000-memory.dmp

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memory/620-308-0x0000000005B10000-0x0000000005B27000-memory.dmp

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memory/620-313-0x0000000005B30000-0x0000000005B47000-memory.dmp

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memory/620-318-0x0000000005B50000-0x0000000005B67000-memory.dmp

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memory/620-303-0x0000000005AF0000-0x0000000005B07000-memory.dmp

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memory/620-288-0x0000000005A90000-0x0000000005AA7000-memory.dmp

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memory/620-273-0x0000000005A30000-0x0000000005A47000-memory.dmp

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memory/620-253-0x00000000059B0000-0x00000000059C7000-memory.dmp

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memory/620-238-0x0000000005950000-0x0000000005967000-memory.dmp

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memory/620-218-0x00000000058D0000-0x00000000058E7000-memory.dmp

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memory/620-203-0x0000000005870000-0x0000000005887000-memory.dmp

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memory/620-188-0x0000000005810000-0x0000000005827000-memory.dmp

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memory/620-163-0x0000000005770000-0x0000000005787000-memory.dmp

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memory/620-113-0x0000000005630000-0x0000000005647000-memory.dmp

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memory/620-98-0x00000000055D0000-0x00000000055E7000-memory.dmp

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memory/620-83-0x0000000005570000-0x0000000005587000-memory.dmp

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memory/620-73-0x0000000005530000-0x0000000005547000-memory.dmp

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memory/620-53-0x00000000054B0000-0x00000000054C7000-memory.dmp

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memory/620-38-0x0000000005450000-0x0000000005467000-memory.dmp

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memory/620-18-0x00000000053D0000-0x00000000053E7000-memory.dmp

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memory/3812-0-0x00000000005A0000-0x00000000005A2000-memory.dmp

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memory/3812-1-0x0000000000400000-0x000000000041D000-memory.dmp

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memory/3812-4-0x0000000000400000-0x000000000041D000-memory.dmp

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memory/3812-3-0x0000000002170000-0x0000000002180000-memory.dmp

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memory/3812-2-0x0000000000400000-0x000000000041D000-memory.dmp

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memory/3812-3717-0x0000000000400000-0x000000000041D000-memory.dmp

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