219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3

Analysis

max time kernel
150s
max time network
127s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/05/2024, 19:30

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General

Target

219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe
Size

3.6MB
MD5

04d4f4dcc379f937d8c56e9658c89b44
SHA1

44ed1ad394ab480892ba1dd758a960850348ed45
SHA256

219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3
SHA512

93e8c78914f2ecd028255b6498000cb81af7c99630742990433976fb412a97257ff7b517368245b81d83a02fe68a899a4753379baf7efb38303aab7c0ce914d2
SSDEEP

98304:JdByXcdnlLwOrI5Vfeg91hZOhkRpsinj7:Jdien+OrFuBR6c7

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe

Executes dropped EXE 4 IoCs

pid	Process
2124	explorer.exe
2628	spoolsv.exe
2408	svchost.exe
1972	spoolsv.exe

Loads dropped DLL 4 IoCs

pid	Process
2740	219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe
2124	explorer.exe
2628	spoolsv.exe
2408	svchost.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\resources\\themes\\explorer.exe RO"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\resources\\svchost.exe RO"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\resources\\themes\\explorer.exe RO"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\resources\\svchost.exe RO"	explorer.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\explorer.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\explorer.exe	explorer.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 36 IoCs

pid	Process
2740	219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe
2124	explorer.exe
2628	spoolsv.exe
2628	spoolsv.exe
2408	svchost.exe
2408	svchost.exe
1972	spoolsv.exe
2740	219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe
2124	explorer.exe
2408	svchost.exe
2124	explorer.exe
2408	svchost.exe
2124	explorer.exe
2408	svchost.exe
2124	explorer.exe
2408	svchost.exe
2124	explorer.exe
2408	svchost.exe
2124	explorer.exe
2408	svchost.exe
2124	explorer.exe
2408	svchost.exe
2124	explorer.exe
2408	svchost.exe
2124	explorer.exe
2408	svchost.exe
2124	explorer.exe
2408	svchost.exe
2124	explorer.exe
2408	svchost.exe
2124	explorer.exe
2408	svchost.exe
2124	explorer.exe
2408	svchost.exe
2124	explorer.exe
2408	svchost.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\windows\resources\themes\explorer.exe	219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe
File opened for modification	\??\c:\windows\resources\spoolsv.exe	explorer.exe
File opened for modification	\??\c:\windows\resources\svchost.exe	spoolsv.exe
File opened for modification	C:\Windows\Resources\tjud.exe	explorer.exe

Creates scheduled task(s) 1 TTPs 3 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
2828	schtasks.exe
1292	schtasks.exe
2028	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2740	219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe
2740	219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe
2740	219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe
2740	219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe
2740	219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe
2740	219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe
2740	219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe
2740	219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe
2740	219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe
2740	219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe
2740	219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe
2740	219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe
2740	219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe
2740	219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe
2740	219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe
2740	219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe
2740	219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe
2124	explorer.exe
2124	explorer.exe
2124	explorer.exe
2124	explorer.exe
2124	explorer.exe
2124	explorer.exe
2124	explorer.exe
2124	explorer.exe
2124	explorer.exe
2124	explorer.exe
2124	explorer.exe
2124	explorer.exe
2124	explorer.exe
2124	explorer.exe
2124	explorer.exe
2124	explorer.exe
2408	svchost.exe
2408	svchost.exe
2408	svchost.exe
2408	svchost.exe
2408	svchost.exe
2408	svchost.exe
2408	svchost.exe
2408	svchost.exe
2408	svchost.exe
2408	svchost.exe
2408	svchost.exe
2408	svchost.exe
2408	svchost.exe
2408	svchost.exe
2408	svchost.exe
2408	svchost.exe
2124	explorer.exe
2408	svchost.exe
2408	svchost.exe
2124	explorer.exe
2124	explorer.exe
2408	svchost.exe
2124	explorer.exe
2408	svchost.exe
2124	explorer.exe
2408	svchost.exe
2124	explorer.exe
2408	svchost.exe
2124	explorer.exe
2408	svchost.exe
2124	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2124	explorer.exe
2408	svchost.exe

Suspicious use of SetWindowsHookEx 15 IoCs

pid	Process
2740	219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe
2740	219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe
2740	219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe
2124	explorer.exe
2124	explorer.exe
2124	explorer.exe
2628	spoolsv.exe
2628	spoolsv.exe
2628	spoolsv.exe
2408	svchost.exe
2408	svchost.exe
2408	svchost.exe
1972	spoolsv.exe
1972	spoolsv.exe
1972	spoolsv.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 2740 wrote to memory of 2124	2740	219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe	28
PID 2740 wrote to memory of 2124	2740	219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe	28
PID 2740 wrote to memory of 2124	2740	219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe	28
PID 2740 wrote to memory of 2124	2740	219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe	28
PID 2124 wrote to memory of 2628	2124	explorer.exe	29
PID 2124 wrote to memory of 2628	2124	explorer.exe	29
PID 2124 wrote to memory of 2628	2124	explorer.exe	29
PID 2124 wrote to memory of 2628	2124	explorer.exe	29
PID 2628 wrote to memory of 2408	2628	spoolsv.exe	30
PID 2628 wrote to memory of 2408	2628	spoolsv.exe	30
PID 2628 wrote to memory of 2408	2628	spoolsv.exe	30
PID 2628 wrote to memory of 2408	2628	spoolsv.exe	30
PID 2408 wrote to memory of 1972	2408	svchost.exe	31
PID 2408 wrote to memory of 1972	2408	svchost.exe	31
PID 2408 wrote to memory of 1972	2408	svchost.exe	31
PID 2408 wrote to memory of 1972	2408	svchost.exe	31
PID 2124 wrote to memory of 2440	2124	explorer.exe	32
PID 2124 wrote to memory of 2440	2124	explorer.exe	32
PID 2124 wrote to memory of 2440	2124	explorer.exe	32
PID 2124 wrote to memory of 2440	2124	explorer.exe	32
PID 2408 wrote to memory of 2828	2408	svchost.exe	33
PID 2408 wrote to memory of 2828	2408	svchost.exe	33
PID 2408 wrote to memory of 2828	2408	svchost.exe	33
PID 2408 wrote to memory of 2828	2408	svchost.exe	33
PID 2408 wrote to memory of 1292	2408	svchost.exe	38
PID 2408 wrote to memory of 1292	2408	svchost.exe	38
PID 2408 wrote to memory of 1292	2408	svchost.exe	38
PID 2408 wrote to memory of 1292	2408	svchost.exe	38
PID 2408 wrote to memory of 2028	2408	svchost.exe	40
PID 2408 wrote to memory of 2028	2408	svchost.exe	40
PID 2408 wrote to memory of 2028	2408	svchost.exe	40
PID 2408 wrote to memory of 2028	2408	svchost.exe	40

C:\Users\Admin\AppData\Local\Temp\219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe
"C:\Users\Admin\AppData\Local\Temp\219c5b6971d1ec9f256915f2ff05c4a32412048e6a1744f67f52d5748a18a8d3.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2740
- \??\c:\windows\resources\themes\explorer.exe
  c:\windows\resources\themes\explorer.exe
  2⤵
  - Modifies visiblity of hidden/system files in Explorer
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Drops file in System32 directory
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2124
- - \??\c:\windows\resources\spoolsv.exe
    c:\windows\resources\spoolsv.exe SE
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Drops file in Windows directory
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2628
  - - \??\c:\windows\resources\svchost.exe
      c:\windows\resources\svchost.exe
      4⤵
      Modifies visiblity of hidden/system files in Explorer
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Drops file in System32 directory
      Suspicious use of NtSetInformationThreadHideFromDebugger
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2408
    - - \??\c:\windows\resources\spoolsv.exe
        
        c:\windows\resources\spoolsv.exe PR
        5⤵
        Executes dropped EXE
        Suspicious use of NtSetInformationThreadHideFromDebugger
        Suspicious use of SetWindowsHookEx
        
        PID:1972
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 19:32 /f
        5⤵
        Creates scheduled task(s)
        
        PID:2828
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 19:33 /f
        5⤵
        Creates scheduled task(s)
        
        PID:1292
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 19:34 /f
        5⤵
        Creates scheduled task(s)
        
        PID:2028
- - C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe
    3⤵
    PID:2440

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\Resources\spoolsv.exe

Filesize
3.6MB

MD5
439c68afb0dae7e2cdae73755a3b6da3

SHA1
0d27370034cf3384dba77201e05b16b9cf9f56c5

SHA256
1ed4b1fe8bea316df06d3fff52a42477f05a2d0fdbc95d020b9bda2e334e9696

SHA512
98b7ee6738598bf77c77242f841890bec5407ce4b78b37cd194c58dcba75ce17e3e7ce6394e82e5543d8481c9c3a27d42b6340921774e99cd0ccfa5f5b239602

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

Filesize
3.6MB

MD5
5461a0183195b0309c5410a2c50be516

SHA1
45b2f9095aed02130a27d610c94eb937aa693734

SHA256
76ddd92fedff30912e1c561eee433f6414ad5913c905833472198d01e8f34443

SHA512
2ec4c81c2e8da577d692f223068872efa0e2fe581ee0a91b3a923f4cf4f2550156f844ccfdd4f7befc6f41f1645a8e0328ea8107dc5231e1ea32f154dd802d42

Download Submit
\Windows\Resources\Themes\explorer.exe

Filesize
3.6MB

MD5
23956d6f49bdd9259a7c3f79cb8a0ec7

SHA1
1e91a0d8783c2448ba735a36af5dd3297485b5a0

SHA256
948767eb81805e163c03627bc11cdcb5986865be8fec3d4a1ddcbb555b26e8c5

SHA512
5a43bdfec32e5c29defc5f3aa91431fdc55b583d60923e860b3409ce8d15252fcf62250175257b65168751dd800df01630a42466a9eaec318a7d32d935a5516c

Download Submit
memory/1972-49-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/1972-44-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2124-75-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2124-81-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2124-23-0x0000000003500000-0x0000000003884000-memory.dmp

Filesize
3.5MB

Download
memory/2124-12-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2124-77-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2124-61-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2124-73-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2124-79-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2124-83-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2124-71-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2124-69-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2124-67-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2124-55-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2124-63-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2124-57-0x0000000003500000-0x0000000003884000-memory.dmp

Filesize
3.5MB

Download
memory/2124-58-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2408-59-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2408-82-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2408-60-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2408-62-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2408-56-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2408-64-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2408-66-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2408-84-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2408-68-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2408-36-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2408-70-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2408-80-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2408-72-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2408-43-0x00000000034B0000-0x0000000003834000-memory.dmp

Filesize
3.5MB

Download
memory/2408-74-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2408-78-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2408-76-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2628-27-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2628-35-0x00000000033C0000-0x0000000003744000-memory.dmp

Filesize
3.5MB

Download
memory/2628-51-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2740-0-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2740-10-0x00000000034B0000-0x0000000003834000-memory.dmp

Filesize
3.5MB

Download
memory/2740-52-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2740-1-0x0000000077B20000-0x0000000077B21000-memory.dmp

Filesize
4KB

Download
memory/2740-54-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download