bb2efb45eb3427a5be0d0b87eeea5648d18b9e6b514eb4dfc82b8f50f0719789

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
17-08-2024 06:39

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General

Target

b3f1eff4a12203b58b5d6d1b68611970N.exe
Size

204KB
MD5

b3f1eff4a12203b58b5d6d1b68611970
SHA1

d219449dc354616027a87513cbbd88854dcc2959
SHA256

bb2efb45eb3427a5be0d0b87eeea5648d18b9e6b514eb4dfc82b8f50f0719789
SHA512

3c0455ff41734f21fe3f01999ba8c71c7300b1fdcf5554560afe3cfbb481f617d13683738b26a9967d997a03588b06bb9c396fc9e41ce19dc113add4228c6925
SSDEEP

3072:6aSdR9c1/fuWL0AjMilpCOT+kICtApWFK1WHk25weLcKznxbQFFNj6QU:67oFuhAwM+kICeseWEEPznxbJ

Score

10^/10

discovery 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
2192	svchost.exe

Loads dropped DLL 2 IoCs

pid	Process
1236	b3f1eff4a12203b58b5d6d1b68611970N.exe
1236	b3f1eff4a12203b58b5d6d1b68611970N.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\b0e3385f = "C:\\Windows\\apppatch\\svchost.exe"	b3f1eff4a12203b58b5d6d1b68611970N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\b0e3385f = "C:\\Windows\\apppatch\\svchost.exe"	svchost.exe

Drops file in Program Files directory 30 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Windows Defender\lymyxid.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\qetyfuv.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\vocyzit.com	svchost.exe
File opened for modification	C:\Program Files (x86)\Windows Defender\vocyzit.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\pupydeq.com	svchost.exe
File opened for modification	C:\Program Files (x86)\Windows Defender\pupydeq.com	svchost.exe
File opened for modification	C:\Program Files (x86)\Windows Defender\gadyciz.com	svchost.exe
File opened for modification	C:\Program Files (x86)\Windows Defender\qetyhyg.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\gatyfus.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\pupycag.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\gahyqah.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\gadyciz.com	svchost.exe
File opened for modification	C:\Program Files (x86)\Windows Defender\galynuh.com	svchost.exe
File opened for modification	C:\Program Files (x86)\Windows Defender\galyqaz.com	svchost.exe
File opened for modification	C:\Program Files (x86)\Windows Defender\gatyfus.com	svchost.exe
File opened for modification	C:\Program Files (x86)\Windows Defender\pupycag.com	svchost.exe
File opened for modification	C:\Program Files (x86)\Windows Defender\qexyhuv.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\galynuh.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\lyxynyx.com	svchost.exe
File opened for modification	C:\Program Files (x86)\Windows Defender\lyxynyx.com	svchost.exe
File opened for modification	C:\Program Files (x86)\Windows Defender\vofycot.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\qetyhyg.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\vofycot.com	svchost.exe
File opened for modification	C:\Program Files (x86)\Windows Defender\lymyxid.com	svchost.exe
File opened for modification	C:\Program Files (x86)\Windows Defender\gahyqah.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\vonypom.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\qexyhuv.com	svchost.exe
File opened for modification	C:\Program Files (x86)\Windows Defender\qetyfuv.com	svchost.exe
File created	C:\Program Files (x86)\Windows Defender\galyqaz.com	svchost.exe
File opened for modification	C:\Program Files (x86)\Windows Defender\vonypom.com	svchost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\apppatch\svchost.exe	b3f1eff4a12203b58b5d6d1b68611970N.exe
File opened for modification	C:\Windows\apppatch\svchost.exe	b3f1eff4a12203b58b5d6d1b68611970N.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b3f1eff4a12203b58b5d6d1b68611970N.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2192	svchost.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1236	b3f1eff4a12203b58b5d6d1b68611970N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1236 wrote to memory of 2192	1236	b3f1eff4a12203b58b5d6d1b68611970N.exe	31
PID 1236 wrote to memory of 2192	1236	b3f1eff4a12203b58b5d6d1b68611970N.exe	31
PID 1236 wrote to memory of 2192	1236	b3f1eff4a12203b58b5d6d1b68611970N.exe	31
PID 1236 wrote to memory of 2192	1236	b3f1eff4a12203b58b5d6d1b68611970N.exe	31

C:\Users\Admin\AppData\Local\Temp\b3f1eff4a12203b58b5d6d1b68611970N.exe
"C:\Users\Admin\AppData\Local\Temp\b3f1eff4a12203b58b5d6d1b68611970N.exe"
1⤵
- Loads dropped DLL
- Modifies WinLogon
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1236
- C:\Windows\apppatch\svchost.exe
  "C:\Windows\apppatch\svchost.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Executes dropped EXE
  - Modifies WinLogon
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2192

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Windows Defender\galynuh.com

Filesize
593B

MD5
926512864979bc27cf187f1de3f57aff

SHA1
acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

SHA256
b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

SHA512
f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

Download Submit
C:\Program Files (x86)\Windows Defender\qexyhuv.com

Filesize
114B

MD5
bfde1e9e9c32c1681a16139450c6909d

SHA1
7e669b927e6a75a10a0ca29e38e58ddcb49b725e

SHA256
e0d020ba1cb6506cee234903a44c747ee0cfa7e2d1e60029e4cd8de9a431512a

SHA512
781fd54f155442dd34f9919b3cd063ee399db411bbfe15f2bdc43d3ab8ac2d04e1011b2c99fab42bebf7b903a94e09aaaef71b7a465d2d04b417f6dad8e8e396

Download Submit
\Windows\AppPatch\svchost.exe

Filesize
204KB

MD5
6198cd62b07a6e01a78e4d1e00a3b442

SHA1
4bd43f10b3ae1d018edf99e8869b02bad1ae3649

SHA256
5cfecd4110e6e588dc602c39bcfb2d2eee7a1937dcdcd9d4e9eb790a59aab66f

SHA512
60571837b4fd163433e6501098c949223ec6acd36030fe149c4edbf173321230078c8568c1e89a12713e3416f461fe8d8e8f149e89d63baf2c212af4e555b35a

Download Submit
memory/1236-0-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download
memory/1236-1-0x0000000000220000-0x000000000026F000-memory.dmp

Filesize
316KB

Download
memory/1236-2-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/1236-16-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download
memory/1236-19-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/1236-18-0x0000000000220000-0x000000000026F000-memory.dmp

Filesize
316KB

Download
memory/2192-71-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-65-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-21-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download
memory/2192-22-0x0000000002110000-0x00000000021B4000-memory.dmp

Filesize
656KB

Download
memory/2192-32-0x0000000002110000-0x00000000021B4000-memory.dmp

Filesize
656KB

Download
memory/2192-30-0x0000000002110000-0x00000000021B4000-memory.dmp

Filesize
656KB

Download
memory/2192-28-0x0000000002110000-0x00000000021B4000-memory.dmp

Filesize
656KB

Download
memory/2192-33-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download
memory/2192-26-0x0000000002110000-0x00000000021B4000-memory.dmp

Filesize
656KB

Download
memory/2192-24-0x0000000002110000-0x00000000021B4000-memory.dmp

Filesize
656KB

Download
memory/2192-36-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-38-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-34-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-49-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-73-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-84-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-83-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-81-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-80-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-78-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-76-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-75-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-72-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-20-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download
memory/2192-70-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-69-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-68-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-67-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-66-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-17-0x0000000000400000-0x0000000000487000-memory.dmp

Filesize
540KB

Download
memory/2192-64-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-63-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-82-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-79-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-77-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-62-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-74-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-61-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-60-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-59-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-58-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-57-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-56-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-55-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-54-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-53-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-52-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-40-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-51-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-50-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-48-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-47-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-46-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-45-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-44-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-43-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-42-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download
memory/2192-41-0x0000000002430000-0x00000000024E2000-memory.dmp

Filesize
712KB

Download