20ba3ad626dca31c666bfff0ff3d1d2cf71b664383cb7c775b7f4a9725989b89

Analysis

max time kernel
181s
max time network
200s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25/12/2023, 00:11

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General

Target

1bfb30639d02336395de9a01866d63b0.exe
Size

425KB
MD5

1bfb30639d02336395de9a01866d63b0
SHA1

6f1139516c8b5a7fd8a36fcfcc52d0e93fa15111
SHA256

20ba3ad626dca31c666bfff0ff3d1d2cf71b664383cb7c775b7f4a9725989b89
SHA512

2bced330d656d43ecbb89fc13e42cac77c125ce1f879f2e80f5032d02755da15ab70e99fe789b66d980dc72ec235e906ffc0734e07551aef291290da03871ed1
SSDEEP

1536:2TJjMefFvUW9jjaZoSbdD2DDo/wwyI5GM0M7eSB3/OizN+jsgevhWqLegb0hp:utMeN8W9jLS5D2g/Ry6GSB33Fge5ySo

Score

7^/10

upx

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-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation	1bfb30639d02336395de9a01866d63b0.exe

Executes dropped EXE 6 IoCs

pid	Process
1880	winlogon.exe
548	winlogon.exe
2972	winlogon.exe
3176	winlogon.exe
4300	winlogon.exe
1552	winlogon.exe

UPX packed file 17 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1384-0-0x0000000000400000-0x0000000000437000-memory.dmp	upx
behavioral2/memory/1384-3-0x0000000000400000-0x0000000000437000-memory.dmp	upx
behavioral2/memory/3644-4-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/3644-1-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/3644-5-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/files/0x000700000002321c-12.dat	upx
behavioral2/memory/1880-16-0x0000000000400000-0x0000000000437000-memory.dmp	upx
behavioral2/memory/3644-17-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/1880-21-0x0000000000400000-0x0000000000437000-memory.dmp	upx
behavioral2/memory/548-22-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/548-23-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/548-26-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/548-29-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/548-30-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/548-37-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/548-42-0x0000000000400000-0x000000000041C000-memory.dmp	upx
behavioral2/memory/548-49-0x0000000000400000-0x000000000041C000-memory.dmp	upx

Suspicious use of SetThreadContext 6 IoCs

description	pid	Process	procid_target
PID 1384 set thread context of 3644	1384	1bfb30639d02336395de9a01866d63b0.exe	92
PID 1880 set thread context of 548	1880	winlogon.exe	97
PID 548 set thread context of 2972	548	winlogon.exe	98
PID 548 set thread context of 3176	548	winlogon.exe	110
PID 548 set thread context of 4300	548	winlogon.exe	116
PID 548 set thread context of 1552	548	winlogon.exe	122

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

System Information Discovery
T1082

Program crash 4 IoCs

pid	pid_target	Process	procid_target
3672	2972	WerFault.exe	98
3068	3176	WerFault.exe	110
4328	4300	WerFault.exe	116
1076	1552	WerFault.exe	122

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3644	1bfb30639d02336395de9a01866d63b0.exe
548	winlogon.exe

Suspicious use of WriteProcessMemory 57 IoCs

description	pid	Process	procid_target
PID 1384 wrote to memory of 4216	1384	1bfb30639d02336395de9a01866d63b0.exe	91
PID 1384 wrote to memory of 4216	1384	1bfb30639d02336395de9a01866d63b0.exe	91
PID 1384 wrote to memory of 4216	1384	1bfb30639d02336395de9a01866d63b0.exe	91
PID 1384 wrote to memory of 3644	1384	1bfb30639d02336395de9a01866d63b0.exe	92
PID 1384 wrote to memory of 3644	1384	1bfb30639d02336395de9a01866d63b0.exe	92
PID 1384 wrote to memory of 3644	1384	1bfb30639d02336395de9a01866d63b0.exe	92
PID 1384 wrote to memory of 3644	1384	1bfb30639d02336395de9a01866d63b0.exe	92
PID 1384 wrote to memory of 3644	1384	1bfb30639d02336395de9a01866d63b0.exe	92
PID 1384 wrote to memory of 3644	1384	1bfb30639d02336395de9a01866d63b0.exe	92
PID 1384 wrote to memory of 3644	1384	1bfb30639d02336395de9a01866d63b0.exe	92
PID 1384 wrote to memory of 3644	1384	1bfb30639d02336395de9a01866d63b0.exe	92
PID 3644 wrote to memory of 1880	3644	1bfb30639d02336395de9a01866d63b0.exe	95
PID 3644 wrote to memory of 1880	3644	1bfb30639d02336395de9a01866d63b0.exe	95
PID 3644 wrote to memory of 1880	3644	1bfb30639d02336395de9a01866d63b0.exe	95
PID 1880 wrote to memory of 5108	1880	winlogon.exe	96
PID 1880 wrote to memory of 5108	1880	winlogon.exe	96
PID 1880 wrote to memory of 5108	1880	winlogon.exe	96
PID 1880 wrote to memory of 548	1880	winlogon.exe	97
PID 1880 wrote to memory of 548	1880	winlogon.exe	97
PID 1880 wrote to memory of 548	1880	winlogon.exe	97
PID 1880 wrote to memory of 548	1880	winlogon.exe	97
PID 1880 wrote to memory of 548	1880	winlogon.exe	97
PID 1880 wrote to memory of 548	1880	winlogon.exe	97
PID 1880 wrote to memory of 548	1880	winlogon.exe	97
PID 1880 wrote to memory of 548	1880	winlogon.exe	97
PID 548 wrote to memory of 2972	548	winlogon.exe	98
PID 548 wrote to memory of 2972	548	winlogon.exe	98
PID 548 wrote to memory of 2972	548	winlogon.exe	98
PID 548 wrote to memory of 2972	548	winlogon.exe	98
PID 548 wrote to memory of 2972	548	winlogon.exe	98
PID 548 wrote to memory of 2972	548	winlogon.exe	98
PID 548 wrote to memory of 2972	548	winlogon.exe	98
PID 548 wrote to memory of 2972	548	winlogon.exe	98
PID 548 wrote to memory of 3176	548	winlogon.exe	110
PID 548 wrote to memory of 3176	548	winlogon.exe	110
PID 548 wrote to memory of 3176	548	winlogon.exe	110
PID 548 wrote to memory of 3176	548	winlogon.exe	110
PID 548 wrote to memory of 3176	548	winlogon.exe	110
PID 548 wrote to memory of 3176	548	winlogon.exe	110
PID 548 wrote to memory of 3176	548	winlogon.exe	110
PID 548 wrote to memory of 3176	548	winlogon.exe	110
PID 548 wrote to memory of 4300	548	winlogon.exe	116
PID 548 wrote to memory of 4300	548	winlogon.exe	116
PID 548 wrote to memory of 4300	548	winlogon.exe	116
PID 548 wrote to memory of 4300	548	winlogon.exe	116
PID 548 wrote to memory of 4300	548	winlogon.exe	116
PID 548 wrote to memory of 4300	548	winlogon.exe	116
PID 548 wrote to memory of 4300	548	winlogon.exe	116
PID 548 wrote to memory of 4300	548	winlogon.exe	116
PID 548 wrote to memory of 1552	548	winlogon.exe	122
PID 548 wrote to memory of 1552	548	winlogon.exe	122
PID 548 wrote to memory of 1552	548	winlogon.exe	122
PID 548 wrote to memory of 1552	548	winlogon.exe	122
PID 548 wrote to memory of 1552	548	winlogon.exe	122
PID 548 wrote to memory of 1552	548	winlogon.exe	122
PID 548 wrote to memory of 1552	548	winlogon.exe	122
PID 548 wrote to memory of 1552	548	winlogon.exe	122

C:\Users\Admin\AppData\Local\Temp\1bfb30639d02336395de9a01866d63b0.exe
"C:\Users\Admin\AppData\Local\Temp\1bfb30639d02336395de9a01866d63b0.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1384
- C:\Windows\SysWOW64\svchost.exe
  C:\Windows\system32\\svchost.exe
  2⤵
  PID:4216
- C:\Users\Admin\AppData\Local\Temp\1bfb30639d02336395de9a01866d63b0.exe
  2⤵
  - Checks computer location settings
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3644
- - C:\Users\Admin\E696D64614\winlogon.exe
    "C:\Users\Admin\E696D64614\winlogon.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1880
  - - C:\Windows\SysWOW64\svchost.exe
      C:\Windows\system32\\svchost.exe
      4⤵
      PID:5108
  - - C:\Users\Admin\E696D64614\winlogon.exe
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:548
    - - C:\Users\Admin\E696D64614\winlogon.exe
        
        "C:\Users\Admin\E696D64614\winlogon.exe"
        5⤵
        Executes dropped EXE
        
        PID:2972
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2972 -s 12
        6⤵
        Program crash
        
        PID:3672
    - - C:\Users\Admin\E696D64614\winlogon.exe
        
        "C:\Users\Admin\E696D64614\winlogon.exe"
        5⤵
        Executes dropped EXE
        
        PID:3176
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 12
        6⤵
        Program crash
        
        PID:3068
    - - C:\Users\Admin\E696D64614\winlogon.exe
        
        "C:\Users\Admin\E696D64614\winlogon.exe"
        5⤵
        Executes dropped EXE
        
        PID:4300
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4300 -s 12
        6⤵
        Program crash
        
        PID:4328
    - - C:\Users\Admin\E696D64614\winlogon.exe
        
        "C:\Users\Admin\E696D64614\winlogon.exe"
        5⤵
        Executes dropped EXE
        
        PID:1552
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1552 -s 12
        6⤵
        Program crash
        
        PID:1076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2972 -ip 2972
1⤵
PID:4960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 3176 -ip 3176
1⤵
PID:844

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4300 -ip 4300
1⤵
PID:2796

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 1552 -ip 1552
1⤵
PID:3752

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\E696D64614\winlogon.exe

Filesize
425KB

MD5
1bfb30639d02336395de9a01866d63b0

SHA1
6f1139516c8b5a7fd8a36fcfcc52d0e93fa15111

SHA256
20ba3ad626dca31c666bfff0ff3d1d2cf71b664383cb7c775b7f4a9725989b89

SHA512
2bced330d656d43ecbb89fc13e42cac77c125ce1f879f2e80f5032d02755da15ab70e99fe789b66d980dc72ec235e906ffc0734e07551aef291290da03871ed1

Download Submit
memory/548-26-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/548-49-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/548-42-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/548-37-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/548-30-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/548-29-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/548-22-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/548-23-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/1384-3-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/1384-0-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/1880-21-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/1880-16-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/3644-17-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/3644-5-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/3644-1-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/3644-4-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download