6441f69c1d2d0a56ce6fdd8c65b8fe26d9f1c88bb9f77b07f567fcc4978d3683

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
26-01-2024 20:42

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General

Target

78575b271bad180562e4dc8df3d8e69b.exe
Size

50KB
MD5

78575b271bad180562e4dc8df3d8e69b
SHA1

aa7af53dcd73b069fd22493e98682fb38e4bb817
SHA256

6441f69c1d2d0a56ce6fdd8c65b8fe26d9f1c88bb9f77b07f567fcc4978d3683
SHA512

58a1e438d87e5a9f3e8d3f9f2b5adb81fc931af6ed1dc579f1c164381f1c30d294372b67d95019c59f01338eb4bd706bbb04841ef95a36d8ea971b8ce589ecbf
SSDEEP

768:Q2nugY9n0QsIqIU6EoBAbbR547bFV5eMZUSY2AsQN1UeVdGP1jRkVQ8oyk2:Q8pqTZqIU6ESAZ5Q82ARQ1iVQ8oz

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\\twext.exe,"	78575b271bad180562e4dc8df3d8e69b.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\twext.exe	78575b271bad180562e4dc8df3d8e69b.exe
File created	C:\Windows\SysWOW64\twext.exe	78575b271bad180562e4dc8df3d8e69b.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3056	78575b271bad180562e4dc8df3d8e69b.exe
3056	78575b271bad180562e4dc8df3d8e69b.exe
3056	78575b271bad180562e4dc8df3d8e69b.exe
3056	78575b271bad180562e4dc8df3d8e69b.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3056	78575b271bad180562e4dc8df3d8e69b.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5
PID 3056 wrote to memory of 628	3056	78575b271bad180562e4dc8df3d8e69b.exe	5

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:628

C:\Users\Admin\AppData\Local\Temp\78575b271bad180562e4dc8df3d8e69b.exe
"C:\Users\Admin\AppData\Local\Temp\78575b271bad180562e4dc8df3d8e69b.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3056

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/628-11-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/628-16-0x00000000044C0000-0x00000000044E6000-memory.dmp

Filesize
152KB

Download
memory/628-21-0x00000000044F0000-0x0000000004516000-memory.dmp

Filesize
152KB

Download
memory/628-26-0x0000000004520000-0x0000000004546000-memory.dmp

Filesize
152KB

Download
memory/628-31-0x0000000004550000-0x0000000004576000-memory.dmp

Filesize
152KB

Download
memory/628-36-0x0000000004580000-0x00000000045A6000-memory.dmp

Filesize
152KB

Download
memory/628-41-0x00000000045B0000-0x00000000045D6000-memory.dmp

Filesize
152KB

Download
memory/628-46-0x00000000045E0000-0x0000000004606000-memory.dmp

Filesize
152KB

Download
memory/628-51-0x0000000004610000-0x0000000004636000-memory.dmp

Filesize
152KB

Download
memory/628-56-0x0000000004640000-0x0000000004666000-memory.dmp

Filesize
152KB

Download
memory/628-61-0x0000000004670000-0x0000000004696000-memory.dmp

Filesize
152KB

Download
memory/628-66-0x00000000046A0000-0x00000000046C6000-memory.dmp

Filesize
152KB

Download
memory/628-71-0x00000000046D0000-0x00000000046F6000-memory.dmp

Filesize
152KB

Download
memory/628-76-0x0000000004700000-0x0000000004726000-memory.dmp

Filesize
152KB

Download
memory/628-81-0x0000000004730000-0x0000000004756000-memory.dmp

Filesize
152KB

Download
memory/628-91-0x0000000004790000-0x00000000047B6000-memory.dmp

Filesize
152KB

Download
memory/628-96-0x00000000047C0000-0x00000000047E6000-memory.dmp

Filesize
152KB

Download
memory/628-101-0x00000000047F0000-0x0000000004816000-memory.dmp

Filesize
152KB

Download
memory/628-86-0x0000000004760000-0x0000000004786000-memory.dmp

Filesize
152KB

Download
memory/628-106-0x0000000004820000-0x0000000004846000-memory.dmp

Filesize
152KB

Download
memory/628-111-0x0000000004850000-0x0000000004876000-memory.dmp

Filesize
152KB

Download
memory/628-116-0x0000000004880000-0x00000000048A6000-memory.dmp

Filesize
152KB

Download
memory/628-121-0x00000000048B0000-0x00000000048D6000-memory.dmp

Filesize
152KB

Download
memory/628-131-0x0000000004910000-0x0000000004936000-memory.dmp

Filesize
152KB

Download
memory/628-136-0x0000000004940000-0x0000000004966000-memory.dmp

Filesize
152KB

Download
memory/628-126-0x00000000048E0000-0x0000000004906000-memory.dmp

Filesize
152KB

Download
memory/628-141-0x0000000004970000-0x0000000004996000-memory.dmp

Filesize
152KB

Download
memory/628-151-0x00000000049D0000-0x00000000049F6000-memory.dmp

Filesize
152KB

Download
memory/628-156-0x0000000004A00000-0x0000000004A26000-memory.dmp

Filesize
152KB

Download
memory/628-146-0x00000000049A0000-0x00000000049C6000-memory.dmp

Filesize
152KB

Download
memory/628-166-0x0000000004A60000-0x0000000004A86000-memory.dmp

Filesize
152KB

Download
memory/628-171-0x0000000004A90000-0x0000000004AB6000-memory.dmp

Filesize
152KB

Download
memory/628-181-0x0000000004AF0000-0x0000000004B16000-memory.dmp

Filesize
152KB

Download
memory/628-176-0x0000000004AC0000-0x0000000004AE6000-memory.dmp

Filesize
152KB

Download
memory/628-161-0x0000000004A30000-0x0000000004A56000-memory.dmp

Filesize
152KB

Download
memory/628-186-0x0000000004B20000-0x0000000004B46000-memory.dmp

Filesize
152KB

Download
memory/628-191-0x0000000004B50000-0x0000000004B76000-memory.dmp

Filesize
152KB

Download
memory/628-196-0x0000000004B80000-0x0000000004BA6000-memory.dmp

Filesize
152KB

Download
memory/628-206-0x0000000004BE0000-0x0000000004C06000-memory.dmp

Filesize
152KB

Download
memory/628-211-0x0000000004C10000-0x0000000004C36000-memory.dmp

Filesize
152KB

Download
memory/628-221-0x0000000004C70000-0x0000000004C96000-memory.dmp

Filesize
152KB

Download
memory/628-216-0x0000000004C40000-0x0000000004C66000-memory.dmp

Filesize
152KB

Download
memory/628-226-0x0000000004CA0000-0x0000000004CC6000-memory.dmp

Filesize
152KB

Download
memory/628-236-0x0000000004D00000-0x0000000004D26000-memory.dmp

Filesize
152KB

Download
memory/628-231-0x0000000004CD0000-0x0000000004CF6000-memory.dmp

Filesize
152KB

Download
memory/628-241-0x0000000004D30000-0x0000000004D56000-memory.dmp

Filesize
152KB

Download
memory/628-251-0x0000000004D90000-0x0000000004DB6000-memory.dmp

Filesize
152KB

Download
memory/628-256-0x0000000004DC0000-0x0000000004DE6000-memory.dmp

Filesize
152KB

Download
memory/628-261-0x0000000004DF0000-0x0000000004E16000-memory.dmp

Filesize
152KB

Download
memory/628-271-0x0000000004E50000-0x0000000004E76000-memory.dmp

Filesize
152KB

Download
memory/628-266-0x0000000004E20000-0x0000000004E46000-memory.dmp

Filesize
152KB

Download
memory/628-276-0x0000000004E80000-0x0000000004EA6000-memory.dmp

Filesize
152KB

Download
memory/628-286-0x0000000004EE0000-0x0000000004F06000-memory.dmp

Filesize
152KB

Download
memory/628-291-0x0000000004F10000-0x0000000004F36000-memory.dmp

Filesize
152KB

Download
memory/628-296-0x0000000004F40000-0x0000000004F66000-memory.dmp

Filesize
152KB

Download
memory/628-306-0x0000000004FA0000-0x0000000004FC6000-memory.dmp

Filesize
152KB

Download
memory/628-311-0x0000000004FD0000-0x0000000004FF6000-memory.dmp

Filesize
152KB

Download
memory/628-316-0x0000000005000000-0x0000000005026000-memory.dmp

Filesize
152KB

Download
memory/628-321-0x0000000005030000-0x0000000005056000-memory.dmp

Filesize
152KB

Download
memory/628-301-0x0000000004F70000-0x0000000004F96000-memory.dmp

Filesize
152KB

Download
memory/628-281-0x0000000004EB0000-0x0000000004ED6000-memory.dmp

Filesize
152KB

Download
memory/628-246-0x0000000004D60000-0x0000000004D86000-memory.dmp

Filesize
152KB

Download
memory/628-201-0x0000000004BB0000-0x0000000004BD6000-memory.dmp

Filesize
152KB

Download
memory/3056-0-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3056-1-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3056-2-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download