8bb1061cc69d553f1511168b242e5b49e086f5c216403d44eba9f4d98d472e0f

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-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

7^/10

defense_evasion discovery privilege_escalation

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	mshta.exe

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

defense_evasion privilege_escalation

Create Process with Token

T1134.002

pid	Process
4252	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 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	check_curl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	check_curl.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2912 wrote to memory of 4768	2912	check_curl.exe	84
PID 2912 wrote to memory of 4768	2912	check_curl.exe	84
PID 4768 wrote to memory of 4252	4768	cmd.exe	86
PID 4768 wrote to memory of 4252	4768	cmd.exe	86
PID 4252 wrote to memory of 4360	4252	mshta.exe	88
PID 4252 wrote to memory of 4360	4252	mshta.exe	88
PID 4360 wrote to memory of 4864	4360	cmd.exe	90
PID 4360 wrote to memory of 4864	4360	cmd.exe	90
PID 4360 wrote to memory of 4864	4360	cmd.exe	90
PID 4864 wrote to memory of 2572	4864	check_curl.exe	91
PID 4864 wrote to memory of 2572	4864	check_curl.exe	91
PID 2572 wrote to memory of 4816	2572	cmd.exe	92
PID 2572 wrote to memory of 4816	2572	cmd.exe	92
PID 2572 wrote to memory of 880	2572	cmd.exe	93
PID 2572 wrote to memory of 880	2572	cmd.exe	93
PID 880 wrote to memory of 3544	880	cmd.exe	94
PID 880 wrote to memory of 3544	880	cmd.exe	94
PID 880 wrote to memory of 2956	880	cmd.exe	95
PID 880 wrote to memory of 2956	880	cmd.exe	95

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:2912
- C:\Windows\system32\cmd.exe
  "C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\8230.tmp\8231.tmp\8232.bat C:\Users\Admin\AppData\Local\Temp\install_check\check_curl.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4768
- - 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⤵
    - Checks computer location settings
    - Access Token Manipulation: Create Process with Token
    - Suspicious use of WriteProcessMemory
    PID:4252
  - - 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:4360
    - - 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 use of WriteProcessMemory
        
        PID:4864
      - C:\Windows\system32\cmd.exe
        
        "C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\8405.tmp\8406.tmp\8407.bat C:\Users\Admin\AppData\Local\Temp\INSTAL~1\check_curl.exe ::"
        6⤵
        Suspicious use of WriteProcessMemory
        
        PID:2572
        
        C:\Windows\system32\curl.exe
        
        curl -V
        7⤵
        
        PID:4816
        
        C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /c dir /a-d|find "temp"
        7⤵
        Suspicious use of WriteProcessMemory
        
        PID:880
        
        C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /S /D /c" dir /a-d"
        8⤵
        
        PID:3544
        
        C:\Windows\system32\find.exe
        
        find "temp"
        8⤵
        
        PID:2956

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

Credential Access

Discovery

Query Registry

T1012

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\8230.tmp\8231.tmp\8232.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