20bf75ec79b517943833f117a12421ff8b31cd4dd1c818f463bb35f0e1753c12

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
30-04-2024 19:49

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General

Target

20bf75ec79b517943833f117a12421ff8b31cd4dd1c818f463bb35f0e1753c12.exe
Size

204KB
MD5

75f8ce733b4af79554b4b84c643980ad
SHA1

4531f769404ed38bdf19195a1354e4a0ac8b4064
SHA256

20bf75ec79b517943833f117a12421ff8b31cd4dd1c818f463bb35f0e1753c12
SHA512

b35e4ab5a9d48fb71c8e66d225b4613c4ed0dddf765f6884faeefea03412a1b0ae65c0dfb16cbd247371a182100b2e1f9dffbbfd7b70b06ecc91f20a41cc326d
SSDEEP

3072:UdGaTPrrIGvvyy8dHSi+OcGMrOpOVKdOyMbkrWRdg+E2uEPczTinJhV+p9GEVFU/:OGazIc6TVBMrOpzeJEsuirSGEMpgE

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2444	svchost.exe

Loads dropped DLL 2 IoCs

pid	Process
2924	20bf75ec79b517943833f117a12421ff8b31cd4dd1c818f463bb35f0e1753c12.exe
2924	20bf75ec79b517943833f117a12421ff8b31cd4dd1c818f463bb35f0e1753c12.exe

Modifies WinLogon 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\c52b6257 = "C:\\Windows\\apppatch\\svchost.exe"	20bf75ec79b517943833f117a12421ff8b31cd4dd1c818f463bb35f0e1753c12.exe

Drops file in Program Files directory 17 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Windows Defender\lysyfyj.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\vocyzit.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\lyxynyx.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\qegyval.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\qexyhuv.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\lymyxid.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\pupydeq.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\pupycag.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\gahyhiz.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\qetyfuv.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\vonypom.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\gadyciz.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\lygyvuj.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\galyqaz.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\galynuh.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\vofycot.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\qetyhyg.com	svchost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\apppatch\svchost.exe	20bf75ec79b517943833f117a12421ff8b31cd4dd1c818f463bb35f0e1753c12.exe
File created	C:\Windows\apppatch\svchost.exe	20bf75ec79b517943833f117a12421ff8b31cd4dd1c818f463bb35f0e1753c12.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\Local Settings\MuiCache	svchost.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2444	svchost.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2924	20bf75ec79b517943833f117a12421ff8b31cd4dd1c818f463bb35f0e1753c12.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeSecurityPrivilege	2924	20bf75ec79b517943833f117a12421ff8b31cd4dd1c818f463bb35f0e1753c12.exe
Token: SeSecurityPrivilege	2924	20bf75ec79b517943833f117a12421ff8b31cd4dd1c818f463bb35f0e1753c12.exe
Token: SeSecurityPrivilege	2444	svchost.exe
Token: SeSecurityPrivilege	2444	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2924 wrote to memory of 2444	2924	20bf75ec79b517943833f117a12421ff8b31cd4dd1c818f463bb35f0e1753c12.exe	28
PID 2924 wrote to memory of 2444	2924	20bf75ec79b517943833f117a12421ff8b31cd4dd1c818f463bb35f0e1753c12.exe	28
PID 2924 wrote to memory of 2444	2924	20bf75ec79b517943833f117a12421ff8b31cd4dd1c818f463bb35f0e1753c12.exe	28
PID 2924 wrote to memory of 2444	2924	20bf75ec79b517943833f117a12421ff8b31cd4dd1c818f463bb35f0e1753c12.exe	28

C:\Users\Admin\AppData\Local\Temp\20bf75ec79b517943833f117a12421ff8b31cd4dd1c818f463bb35f0e1753c12.exe
"C:\Users\Admin\AppData\Local\Temp\20bf75ec79b517943833f117a12421ff8b31cd4dd1c818f463bb35f0e1753c12.exe"
1⤵
- Loads dropped DLL
- Modifies WinLogon
- Drops file in Windows directory
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2924
- C:\Windows\apppatch\svchost.exe
  "C:\Windows\apppatch\svchost.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2444

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\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
68KB

MD5
29f65ba8e88c063813cc50a4ea544e93

SHA1
05a7040d5c127e68c25d81cc51271ffb8bef3568

SHA256
1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

SHA512
e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357

Filesize
1KB

MD5
a266bb7dcc38a562631361bbf61dd11b

SHA1
3b1efd3a66ea28b16697394703a72ca340a05bd5

SHA256
df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

SHA512
0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357

Filesize
242B

MD5
5c396e3731b15312c7e6e0d5b18949d0

SHA1
b9d1ed9e97379e1272751450b23dc310ff35d0a4

SHA256
48590d90945024fb2db2866fa53c12257109e31f7d9f4302242e9d6dd3ba58a5

SHA512
7e94a945d9b243c028e89ea274e49f49708a16c952f1b6e1359f0ebc1b6b7ce2be24e0d12a82c5a45d4a1fc96147625d7f6b8c7e6570f4fd4bc3d17d8ad9d21c

Download Submit
C:\Users\Admin\AppData\LocalLow\Temp\Cab1D26.tmp

Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\LocalLow\Temp\Tar1E58.tmp

Filesize
177KB

MD5
435a9ac180383f9fa094131b173a2f7b

SHA1
76944ea657a9db94f9a4bef38f88c46ed4166983

SHA256
67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

SHA512
1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

Download Submit
\Windows\AppPatch\svchost.exe

Filesize
204KB

MD5
eb8d12605e7222b4e3fdf71469fe1dcd

SHA1
9cba45e28d709d0f7093fe4584734fe8800d0258

SHA256
fdd6ee5971c34a9705eb249a0cc0fd75e75f2c99e0ddb1070e26678082e1accf

SHA512
b6a25598141ba72b19c3a0d67c52d852d7deba7686e10fc4d329e182d24cd0611feb52b302e90243be88c69f4a684e4e59007369a7540687e6025ecfdfbe88d7

Download Submit
memory/2444-58-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-77-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-21-0x0000000002160000-0x000000000220A000-memory.dmp

Filesize
680KB

Download
memory/2444-31-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-34-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-35-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-39-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-49-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-83-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-81-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-80-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-79-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-78-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-55-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-76-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-75-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-74-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-73-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-72-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-70-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-69-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-68-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-67-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-66-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-65-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-64-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-63-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-62-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-61-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-60-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-54-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-57-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-51-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-23-0x0000000002160000-0x000000000220A000-memory.dmp

Filesize
680KB

Download
memory/2444-29-0x0000000002160000-0x000000000220A000-memory.dmp

Filesize
680KB

Download
memory/2444-53-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-52-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-56-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-50-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-48-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-47-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-46-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-82-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-45-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-71-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-44-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-43-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-59-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-42-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-41-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-40-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-37-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-25-0x0000000002160000-0x000000000220A000-memory.dmp

Filesize
680KB

Download
memory/2444-30-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2444-38-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-19-0x0000000002160000-0x000000000220A000-memory.dmp

Filesize
680KB

Download
memory/2444-27-0x0000000002160000-0x000000000220A000-memory.dmp

Filesize
680KB

Download
memory/2444-2175-0x000000007742F000-0x0000000077430000-memory.dmp

Filesize
4KB

Download
memory/2444-2176-0x0000000007740000-0x0000000007741000-memory.dmp

Filesize
4KB

Download
memory/2444-641-0x0000000002660000-0x0000000002717000-memory.dmp

Filesize
732KB

Download
memory/2444-2178-0x0000000007730000-0x0000000007731000-memory.dmp

Filesize
4KB

Download
memory/2444-2177-0x0000000007720000-0x0000000007721000-memory.dmp

Filesize
4KB

Download
memory/2924-375-0x0000000000350000-0x00000000003A2000-memory.dmp

Filesize
328KB

Download
memory/2924-18-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2924-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2924-0-0x0000000000350000-0x00000000003A2000-memory.dmp

Filesize
328KB

Download