8bb1061cc69d553f1511168b242e5b49e086f5c216403d44eba9f4d98d472e0f

Analysis

max time kernel
119s
max time network
122s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
13/09/2024, 08:01

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General

Target

install_check/check_curl.exe
Size

89KB
MD5

2f2f73335394b46636755905fcea2cc9
SHA1

5de63f89b0ad2c454574c86f60f49bfa79e80d0c
SHA256

fd0dd71d6e2354d620f902c6b1a0ef7178d116fd9ec1463a690ae2dae454c2a6
SHA512

a047cf969eac47b930740b665f48e4d367ee88195142c386d5621a094b7afd3eb97ec85df7a2f8f2ac027da88718f29e02abde29f6fbbc7fbeda05565028eb6a
SSDEEP

1536:rX7ftfkS5g9YOms+gZcQipICdXkNDqLLZX9lItVGL++eIOlnToIfRwy+O8:rLFfHgTWmCRkGbKGLeNTBfR0

Score

3^/10

defense_evasion discovery privilege_escalation

Malware Config

Signatures

Access Token Manipulation: Create Process with Token 1 TTPs 1 IoCs

defense_evasion privilege_escalation

Create Process with Token

T1134.002

pid	Process
2052	mshta.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 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	find.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	check_curl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	check_curl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Main	mshta.exe

Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs

pid	Process
2824	check_curl.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1644 wrote to memory of 2440	1644	check_curl.exe	31
PID 1644 wrote to memory of 2440	1644	check_curl.exe	31
PID 1644 wrote to memory of 2440	1644	check_curl.exe	31
PID 1644 wrote to memory of 2440	1644	check_curl.exe	31
PID 2440 wrote to memory of 2052	2440	cmd.exe	32
PID 2440 wrote to memory of 2052	2440	cmd.exe	32
PID 2440 wrote to memory of 2052	2440	cmd.exe	32
PID 2052 wrote to memory of 580	2052	mshta.exe	33
PID 2052 wrote to memory of 580	2052	mshta.exe	33
PID 2052 wrote to memory of 580	2052	mshta.exe	33
PID 580 wrote to memory of 2824	580	cmd.exe	35
PID 580 wrote to memory of 2824	580	cmd.exe	35
PID 580 wrote to memory of 2824	580	cmd.exe	35
PID 580 wrote to memory of 2824	580	cmd.exe	35
PID 2824 wrote to memory of 1860	2824	check_curl.exe	36
PID 2824 wrote to memory of 1860	2824	check_curl.exe	36
PID 2824 wrote to memory of 1860	2824	check_curl.exe	36
PID 2824 wrote to memory of 1860	2824	check_curl.exe	36
PID 1860 wrote to memory of 1572	1860	cmd.exe	37
PID 1860 wrote to memory of 1572	1860	cmd.exe	37
PID 1860 wrote to memory of 1572	1860	cmd.exe	37
PID 1860 wrote to memory of 1572	1860	cmd.exe	37
PID 1572 wrote to memory of 2780	1572	cmd.exe	38
PID 1572 wrote to memory of 2780	1572	cmd.exe	38
PID 1572 wrote to memory of 2780	1572	cmd.exe	38
PID 1572 wrote to memory of 2780	1572	cmd.exe	38
PID 1572 wrote to memory of 2744	1572	cmd.exe	39
PID 1572 wrote to memory of 2744	1572	cmd.exe	39
PID 1572 wrote to memory of 2744	1572	cmd.exe	39
PID 1572 wrote to memory of 2744	1572	cmd.exe	39

C:\Users\Admin\AppData\Local\Temp\install_check\check_curl.exe
"C:\Users\Admin\AppData\Local\Temp\install_check\check_curl.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1644
- C:\Windows\system32\cmd.exe
  "C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\C449.tmp\C44A.tmp\C44B.bat C:\Users\Admin\AppData\Local\Temp\install_check\check_curl.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2440
- - C:\Windows\system32\mshta.exe
    mshta vbscript:CreateObject("Shell.Application").ShellExecute("cmd.exe","/c C:\Users\Admin\AppData\Local\Temp\INSTAL~1\CHECK_~1.EXE ::","","runas",0)(window.close)
    3⤵
    - Access Token Manipulation: Create Process with Token
    - Modifies Internet Explorer settings
    - Suspicious use of WriteProcessMemory
    PID:2052
  - - C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c C:\Users\Admin\AppData\Local\Temp\INSTAL~1\CHECK_~1.EXE ::
      4⤵
      Suspicious use of WriteProcessMemory
      PID:580
    - - C:\Users\Admin\AppData\Local\Temp\INSTAL~1\check_curl.exe
        
        C:\Users\Admin\AppData\Local\Temp\INSTAL~1\CHECK_~1.EXE ::
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious behavior: CmdExeWriteProcessMemorySpam
        Suspicious use of WriteProcessMemory
        
        PID:2824
      - C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\system32\cmd" /c "C:\Users\Admin\AppData\Local\Temp\C561.tmp\C562.tmp\C563.bat C:\Users\Admin\AppData\Local\Temp\INSTAL~1\check_curl.exe ::"
        6⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:1860
        
        C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /c dir /a-d|find "temp"
        7⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:1572
        
        C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /S /D /c" dir /a-d"
        8⤵
        System Location Discovery: System Language Discovery
        
        PID:2780
        
        C:\Windows\SysWOW64\find.exe
        
        find "temp"
        8⤵
        System Location Discovery: System Language Discovery
        
        PID:2744

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Access Token Manipulation

T1134

Create Process with Token

T1134.002

Defense Evasion

Access Token Manipulation

T1134

Create Process with Token

T1134.002

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\C449.tmp\C44A.tmp\C44B.bat

Filesize
721B

MD5
47b37a734ad6b4e35a4461a40616c0e8

SHA1
991fc8f8382b0a2b214419ab6f25d59b06fe3c52

SHA256
a1c96a7c5f25e7c1ee323e5c345db68473fa53a497a876a6510cbe6b135c974d

SHA512
71e5968bb300e38d35f6ce203552ae70be5682df6c4442e53dd531dfa6500f817d4912df33d36fa132b12f29c2ff3601fec1fe2308e0c990b685f914d227ba85

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads