ff33c207cdf78dc7f1b8f3ba6998054439aaf1ad0608dbaed0b51e376da26caa

Analysis

max time kernel
142s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
12/02/2024, 14:17

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General

Target

975b62dab787e8d2e537dd35950b2540.exe
Size

355KB
MD5

975b62dab787e8d2e537dd35950b2540
SHA1

463aaf6aaaa1534ebd1894fab50cebca5bc90bd4
SHA256

ff33c207cdf78dc7f1b8f3ba6998054439aaf1ad0608dbaed0b51e376da26caa
SHA512

99a948999b390d161c411a324e3811a65c07c547c0f761cde7a96cc94be9a9d331a691eacbaf5b9bbef0106470be2bcea87d8908f4b4ae67dc00d23b2e298cd3
SSDEEP

6144:w3EmWPDNND9yRPzLq+YXFqaZiMLic9kzVd7EAC4TSs9EiS:LmWhND9yJz+b1FcMLmp2ATTSsdS

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\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\apppatch\\svchost.exe,"	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2768	svchost.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\9b327461 = "ÀÙM”\"7§vÄÈ\u008dJë\x13³à‡ Óõ=\x16õ9÷2ý?»\x18ÍA[1q#y™ûY›Aé™–Èî³³QQcVQ!\v\x01É£\u0090)è\u0090³6x\u0081A\x13P;¹»Áað£sÃI!ÛÙ‰³\u00a0þa¹N™!\u0081é˜ø\t\u0081ø1A\x16N‘Ûëá6‰S;‰»ƒP1I)£q;™SóAYvA[\x1ec\vXY;!\u0090YÓã¹Ûñ[1á«Æqö~©)°ë\u0090\x01S±†\x01¹1Ñ±æƒ1!\x19qˆY\x1b[+¡ÛÉy¡\t@ƒŽÓQ™™Éó1`9±–ë~‘ƒÙqQ`ƒ‘\x11[›óFƒ9\x1bÛñy8\x18)™9áƒÃá‰û\x01»+Û!{¡ÃQÁFëA‘Ë{\x13[\v¹q+8Ð±ƒ\x19qóƒƒ¶"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\9b327461 = "ÀÙM”\"7§vÄÈ\u008dJë\x13³à‡ Óõ=\x16õ9÷2ý?»\x18ÍA[1q#y™ûY›Aé™–Èî³³QQcVQ!\v\x01É£\u0090)è\u0090³6x\u0081A\x13P;¹»Áað£sÃI!ÛÙ‰³\u00a0þa¹N™!\u0081é˜ø\t\u0081ø1A\x16N‘Ûëá6‰S;‰»ƒP1I)£q;™SóAYvA[\x1ec\vXY;!\u0090YÓã¹Ûñ[1á«Æqö~©)°ë\u0090\x01S±†\x01¹1Ñ±æƒ1!\x19qˆY\x1b[+¡ÛÉy¡\t@ƒŽÓQ™™Éó1`9±–ë~‘ƒÙqQ`ƒ‘\x11[›óFƒ9\x1bÛñy8\x18)™9áƒÃá‰û\x01»+Û!{¡ÃQÁFëA‘Ë{\x13[\v¹q+8Ð±ƒ\x19qóƒƒ¶"	975b62dab787e8d2e537dd35950b2540.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\apppatch\svchost.exe	975b62dab787e8d2e537dd35950b2540.exe
File opened for modification	C:\Windows\apppatch\svchost.exe	975b62dab787e8d2e537dd35950b2540.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1012	975b62dab787e8d2e537dd35950b2540.exe
1012	975b62dab787e8d2e537dd35950b2540.exe
1012	975b62dab787e8d2e537dd35950b2540.exe
1012	975b62dab787e8d2e537dd35950b2540.exe
1012	975b62dab787e8d2e537dd35950b2540.exe
1012	975b62dab787e8d2e537dd35950b2540.exe
1012	975b62dab787e8d2e537dd35950b2540.exe
1012	975b62dab787e8d2e537dd35950b2540.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe
2768	svchost.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1012	975b62dab787e8d2e537dd35950b2540.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1012 wrote to memory of 2768	1012	975b62dab787e8d2e537dd35950b2540.exe	84
PID 1012 wrote to memory of 2768	1012	975b62dab787e8d2e537dd35950b2540.exe	84
PID 1012 wrote to memory of 2768	1012	975b62dab787e8d2e537dd35950b2540.exe	84

C:\Users\Admin\AppData\Local\Temp\975b62dab787e8d2e537dd35950b2540.exe
"C:\Users\Admin\AppData\Local\Temp\975b62dab787e8d2e537dd35950b2540.exe"
1⤵
- Modifies WinLogon
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1012
- C:\Windows\apppatch\svchost.exe
  "C:\Windows\apppatch\svchost.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Executes dropped EXE
  - Modifies WinLogon
  - Suspicious behavior: EnumeratesProcesses
  PID:2768

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

C:\Users\Admin\AppData\Local\Temp\28AE.tmp

Filesize
315B

MD5
b0e58b5c7f1a13dc54919f55661a957e

SHA1
9575c07248ff0257e88e7a053b421e067a6e9f81

SHA256
8167c759b25907ab300486653a68223495399f7b4c5d62c7432e9e000df514f8

SHA512
7e736a9627f84490cdb7ed1adbe3a905a74c2aedbec161cfe800ec6f3fd0ab5263583987e421a703fab1b373d1e7388e34d4d974e7b53518e874a473e061a7ca

Download Submit
C:\Users\Admin\AppData\Local\Temp\5E6C.tmp

Filesize
593B

MD5
926512864979bc27cf187f1de3f57aff

SHA1
acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

SHA256
b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

SHA512
f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

Download Submit
C:\Users\Admin\AppData\Local\Temp\7B79.tmp

Filesize
1KB

MD5
18e0f6c3d215f87d8e8dc25a29992544

SHA1
5dc3531d54519275645ee4d074a07edd4b99da4b

SHA256
1ad44704ee9243880e16bd08a9abdf7fd9e92509d2c175ca2f636892cef4ce35

SHA512
cb7f362e07406ca10c93bb386ee8b3d6f0fbbd2d495c44841f266d74fa41e53b50b45bd93b48ae843cb756ee064094295d53d0a5441b2726364221e0e9622e99

Download Submit
C:\Users\Admin\AppData\Local\Temp\8893.tmp

Filesize
481B

MD5
675b88ddd3e49b805c8c9d4b8bd82b92

SHA1
1bb1a0f46d3e1f320c609dfbae9ce47becf551f5

SHA256
b1bfd6a6f066b3f6b03e9c39820252595c6237f28046d85e3af4fe4675de3a13

SHA512
0804797e4c999c7de48c1f09121715e3a6db9a55ca06034501a29831b6c65c7fa37b2c2f2b5c58edbf885883a9ddcdfa4cb397460b17177fcc794675d5058f01

Download Submit
C:\Windows\apppatch\svchost.exe

Filesize
355KB

MD5
e08ca45a6570fdfc22f61c33c9c3614f

SHA1
203fb19e320ec08176c3a87ca91d16ee0024fb6e

SHA256
3c75f33ce41a4687d514518c36206c5f21bf4952beefc45accd3c3e80e3bdf9d

SHA512
1207dfafd3e05b6386f1c2b30ba773af3d882844f689496c0a807c36ad3cfa7df03650da6c5b6223792911038022de878619ff596e2a069af9f720fee9eb0197

Download Submit
memory/2768-51-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-15-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-18-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-20-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-19-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-21-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-22-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-23-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-24-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-26-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-28-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-30-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-31-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-34-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-36-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-38-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-41-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-16-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-54-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-17-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-57-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-55-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-60-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-61-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-63-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-64-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-43-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-68-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-67-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-70-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-72-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-73-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-76-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-79-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-78-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-13-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-169-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-10-0x0000000002B40000-0x0000000002BF6000-memory.dmp

Filesize
728KB

Download
memory/2768-9-0x0000000002720000-0x00000000027C8000-memory.dmp

Filesize
672KB

Download