39406da54f7117002a30944c29f6fa379ba47bcbfb4fad2c740e6d6205559fe4

Analysis

max time kernel
120s
max time network
25s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
02-08-2024 17:46

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

c00d0a1295041159ca5d7acacdd7c130N.exe
Size

391KB
MD5

c00d0a1295041159ca5d7acacdd7c130
SHA1

7b0f55a7b1e3a9caf3ef97ced12368944bee71e1
SHA256

39406da54f7117002a30944c29f6fa379ba47bcbfb4fad2c740e6d6205559fe4
SHA512

b6a77a61ec1995b78a105e194e62cd4b74fefacc7e0b87a6801e94d49d310a13d59baaea89d97ee378a45446edb4cd9390be59997eef7e8061ea4483cc30e170
SSDEEP

3072:XVqoCl/YgjxEufVU0TbTyDDaloA1GULshkZKrbZyXodkfJcRdjfJc5YVjS:XsLqdufVUNDa9Lq+MbZAAkK7jKuNS

Score

10^/10

discovery 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-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Executes dropped EXE 6 IoCs

pid	Process
1928	c00d0a1295041159ca5d7acacdd7c130n.exe
3040	icsys.icn.exe
2688	explorer.exe
2740	spoolsv.exe
2748	svchost.exe
2628	spoolsv.exe

Loads dropped DLL 6 IoCs

pid	Process
2052	c00d0a1295041159ca5d7acacdd7c130N.exe
2052	c00d0a1295041159ca5d7acacdd7c130N.exe
3040	icsys.icn.exe
2688	explorer.exe
2740	spoolsv.exe
2748	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\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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\resources\\themes\\explorer.exe RO"	svchost.exe

Drops file in System32 directory 2 IoCs

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

Drops file in Windows directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Resources\tjud.exe	explorer.exe
File opened for modification	C:\Windows\Resources\Themes\icsys.icn.exe	c00d0a1295041159ca5d7acacdd7c130N.exe
File opened for modification	\??\c:\windows\resources\themes\explorer.exe	icsys.icn.exe
File opened for modification	\??\c:\windows\resources\spoolsv.exe	explorer.exe
File opened for modification	\??\c:\windows\resources\svchost.exe	spoolsv.exe

System Location Discovery: System Language Discovery 1 TTPs 8 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	spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c00d0a1295041159ca5d7acacdd7c130N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icsys.icn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	spoolsv.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2596	schtasks.exe
2652	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2052	c00d0a1295041159ca5d7acacdd7c130N.exe
2052	c00d0a1295041159ca5d7acacdd7c130N.exe
2052	c00d0a1295041159ca5d7acacdd7c130N.exe
2052	c00d0a1295041159ca5d7acacdd7c130N.exe
2052	c00d0a1295041159ca5d7acacdd7c130N.exe
2052	c00d0a1295041159ca5d7acacdd7c130N.exe
2052	c00d0a1295041159ca5d7acacdd7c130N.exe
2052	c00d0a1295041159ca5d7acacdd7c130N.exe
2052	c00d0a1295041159ca5d7acacdd7c130N.exe
2052	c00d0a1295041159ca5d7acacdd7c130N.exe
2052	c00d0a1295041159ca5d7acacdd7c130N.exe
2052	c00d0a1295041159ca5d7acacdd7c130N.exe
2052	c00d0a1295041159ca5d7acacdd7c130N.exe
2052	c00d0a1295041159ca5d7acacdd7c130N.exe
2052	c00d0a1295041159ca5d7acacdd7c130N.exe
2052	c00d0a1295041159ca5d7acacdd7c130N.exe
3040	icsys.icn.exe
3040	icsys.icn.exe
3040	icsys.icn.exe
3040	icsys.icn.exe
3040	icsys.icn.exe
3040	icsys.icn.exe
3040	icsys.icn.exe
3040	icsys.icn.exe
3040	icsys.icn.exe
3040	icsys.icn.exe
3040	icsys.icn.exe
3040	icsys.icn.exe
3040	icsys.icn.exe
3040	icsys.icn.exe
3040	icsys.icn.exe
3040	icsys.icn.exe
3040	icsys.icn.exe
2688	explorer.exe
2688	explorer.exe
2688	explorer.exe
2688	explorer.exe
2688	explorer.exe
2688	explorer.exe
2688	explorer.exe
2688	explorer.exe
2688	explorer.exe
2688	explorer.exe
2688	explorer.exe
2688	explorer.exe
2688	explorer.exe
2688	explorer.exe
2688	explorer.exe
2688	explorer.exe
2748	svchost.exe
2748	svchost.exe
2748	svchost.exe
2748	svchost.exe
2748	svchost.exe
2748	svchost.exe
2748	svchost.exe
2748	svchost.exe
2748	svchost.exe
2748	svchost.exe
2748	svchost.exe
2748	svchost.exe
2748	svchost.exe
2748	svchost.exe
2748	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2688	explorer.exe
2748	svchost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1928	c00d0a1295041159ca5d7acacdd7c130n.exe

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2052	c00d0a1295041159ca5d7acacdd7c130N.exe
2052	c00d0a1295041159ca5d7acacdd7c130N.exe
3040	icsys.icn.exe
3040	icsys.icn.exe
2688	explorer.exe
2688	explorer.exe
2740	spoolsv.exe
2740	spoolsv.exe
2748	svchost.exe
2748	svchost.exe
2628	spoolsv.exe
2628	spoolsv.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2052 wrote to memory of 1928	2052	c00d0a1295041159ca5d7acacdd7c130N.exe	30
PID 2052 wrote to memory of 1928	2052	c00d0a1295041159ca5d7acacdd7c130N.exe	30
PID 2052 wrote to memory of 1928	2052	c00d0a1295041159ca5d7acacdd7c130N.exe	30
PID 2052 wrote to memory of 1928	2052	c00d0a1295041159ca5d7acacdd7c130N.exe	30
PID 2052 wrote to memory of 3040	2052	c00d0a1295041159ca5d7acacdd7c130N.exe	31
PID 2052 wrote to memory of 3040	2052	c00d0a1295041159ca5d7acacdd7c130N.exe	31
PID 2052 wrote to memory of 3040	2052	c00d0a1295041159ca5d7acacdd7c130N.exe	31
PID 2052 wrote to memory of 3040	2052	c00d0a1295041159ca5d7acacdd7c130N.exe	31
PID 3040 wrote to memory of 2688	3040	icsys.icn.exe	32
PID 3040 wrote to memory of 2688	3040	icsys.icn.exe	32
PID 3040 wrote to memory of 2688	3040	icsys.icn.exe	32
PID 3040 wrote to memory of 2688	3040	icsys.icn.exe	32
PID 2688 wrote to memory of 2740	2688	explorer.exe	33
PID 2688 wrote to memory of 2740	2688	explorer.exe	33
PID 2688 wrote to memory of 2740	2688	explorer.exe	33
PID 2688 wrote to memory of 2740	2688	explorer.exe	33
PID 2740 wrote to memory of 2748	2740	spoolsv.exe	34
PID 2740 wrote to memory of 2748	2740	spoolsv.exe	34
PID 2740 wrote to memory of 2748	2740	spoolsv.exe	34
PID 2740 wrote to memory of 2748	2740	spoolsv.exe	34
PID 2748 wrote to memory of 2628	2748	svchost.exe	35
PID 2748 wrote to memory of 2628	2748	svchost.exe	35
PID 2748 wrote to memory of 2628	2748	svchost.exe	35
PID 2748 wrote to memory of 2628	2748	svchost.exe	35
PID 2688 wrote to memory of 3052	2688	explorer.exe	36
PID 2688 wrote to memory of 3052	2688	explorer.exe	36
PID 2688 wrote to memory of 3052	2688	explorer.exe	36
PID 2688 wrote to memory of 3052	2688	explorer.exe	36
PID 2748 wrote to memory of 2596	2748	svchost.exe	37
PID 2748 wrote to memory of 2596	2748	svchost.exe	37
PID 2748 wrote to memory of 2596	2748	svchost.exe	37
PID 2748 wrote to memory of 2596	2748	svchost.exe	37
PID 2748 wrote to memory of 2652	2748	svchost.exe	41
PID 2748 wrote to memory of 2652	2748	svchost.exe	41
PID 2748 wrote to memory of 2652	2748	svchost.exe	41
PID 2748 wrote to memory of 2652	2748	svchost.exe	41

C:\Users\Admin\AppData\Local\Temp\c00d0a1295041159ca5d7acacdd7c130N.exe
"C:\Users\Admin\AppData\Local\Temp\c00d0a1295041159ca5d7acacdd7c130N.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2052
- \??\c:\users\admin\appdata\local\temp\c00d0a1295041159ca5d7acacdd7c130n.exe
  c:\users\admin\appdata\local\temp\c00d0a1295041159ca5d7acacdd7c130n.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1928
- C:\Windows\Resources\Themes\icsys.icn.exe
  C:\Windows\Resources\Themes\icsys.icn.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3040
- - \??\c:\windows\resources\themes\explorer.exe
    c:\windows\resources\themes\explorer.exe
    3⤵
    - 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
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2688
  - - \??\c:\windows\resources\spoolsv.exe
      c:\windows\resources\spoolsv.exe SE
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Drops file in Windows directory
      System Location Discovery: System Language Discovery
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2740
    - - \??\c:\windows\resources\svchost.exe
        
        c:\windows\resources\svchost.exe
        5⤵
        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
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: GetForegroundWindowSpam
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:2748
      - \??\c:\windows\resources\spoolsv.exe
        
        c:\windows\resources\spoolsv.exe PR
        6⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of SetWindowsHookEx
        
        PID:2628
      - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 17:48 /f
        6⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2596
      - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 17:49 /f
        6⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2652
  - - C:\Windows\Explorer.exe
      C:\Windows\Explorer.exe
      4⤵
      PID:3052

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

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

Loading Replay Monitor...

Downloads

C:\Windows\Resources\Themes\explorer.exe

Filesize
135KB

MD5
b0e5e9f1533213d3052207284893cd0f

SHA1
1789388f6cb7c02281817b48169293a98c6d49d3

SHA256
1d2c344e112b41cf73832bb33960c2a1bc9b954a9c704fe3a9921b9c6229b20b

SHA512
13f11435c47c108a07455b65b94e7ef66aaf88ade61fc1f9e092495b910c5233a0c187d54d0859a9ebfdc1a48e61bb5b20bed23117111eba810b2585ac6b99a6

Download Submit
C:\Windows\Resources\Themes\icsys.icn.exe

Filesize
135KB

MD5
a5ecc9fd486f996ddd872f9e86895dfc

SHA1
fbcedfc7c40f500e2657a50572cb022e39e753a1

SHA256
dfca3194b508d5107eea6246a1727620b82192e3b2914c805a00832ec4188e16

SHA512
2a9269bb83e4ae4a458370a0c5b44c61251423ae57a5eff99f18335bb88c3a9921cd4763474d1993d630418108d5b6bf224f677e8cb5193c0b93cf79754feb02

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

Filesize
135KB

MD5
6c10d31e65e04c78e87851a64c99ca47

SHA1
c9e2ecb52245d57663479d7424aa58ceef7b6180

SHA256
7bcd115d422c0c047f0f50c2fe28fd661bc87d083426a79b844f49c79f7650cf

SHA512
5aae68409374621461d8ce43e340a0e94a1f0f92c632f870afbeb91a20946be657c68ae3ab0f53b07f5e887f670355757fc8f27af02d944ecea596838e74611a

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

Filesize
135KB

MD5
3b971d675803a12c9c5d1c41b8a9f639

SHA1
3e90cb83697413330a0fef87440482af297175b3

SHA256
7906ab442c162b897ab85e4e43caf813290c97bbc1c69da69c8434161a1ba61c

SHA512
a384598e356195c70c0bb859248459deed9d09cb2739247376ae2c9590821543ea0fb373f256cd8fb61745dbe79493d432123592f722a1a04a2694d7a06b5a49

Download Submit
\Users\Admin\AppData\Local\Temp\c00d0a1295041159ca5d7acacdd7c130n.exe

Filesize
255KB

MD5
9bc5f7daf81f25fe323f597418787356

SHA1
66a2d69d03a9b724e02abd7ef8727e5f78223c3b

SHA256
f6907d05fcba84b9fef3f2b63f59f71ecb4165b055b34d3d13004c27f9581f4e

SHA512
7e77b938653069e112706e2401c48e6b1be99b9632ec34fc4b97b5e19cdb0c1ea3440bd3e10bc0b9b91bed452d5497a206673ae8a733a289a4e2258918b35f9d

Download Submit
memory/1928-11-0x0000000000A00000-0x0000000000A46000-memory.dmp

Filesize
280KB

Download
memory/1928-10-0x000007FEF5413000-0x000007FEF5414000-memory.dmp

Filesize
4KB

Download
memory/1928-65-0x000007FEF5410000-0x000007FEF5DFC000-memory.dmp

Filesize
9.9MB

Download
memory/1928-40-0x000007FEF5410000-0x000007FEF5DFC000-memory.dmp

Filesize
9.9MB

Download
memory/2052-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2052-64-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2628-62-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2688-51-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2740-52-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2740-61-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2748-56-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/3040-63-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/3040-49-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/3040-50-0x0000000000360000-0x000000000037F000-memory.dmp

Filesize
124KB

Download