4ddc489c26a2319bf4f6421c6e0ab1f211037dfcc6e345145431b6139c7b0f61

Analysis

max time kernel
111s
max time network
113s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12-10-2024 17:56

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General

Target

4ddc489c26a2319bf4f6421c6e0ab1f211037dfcc6e345145431b6139c7b0f61N.exe
Size

800KB
MD5

1fbafb7caa3240455eaf42ee4fe053d0
SHA1

2cc567399d0161bbd0783b2b597bb46bab49afdd
SHA256

4ddc489c26a2319bf4f6421c6e0ab1f211037dfcc6e345145431b6139c7b0f61
SHA512

0b622400bcfe9617c1f900e119d499f1b86d6aecf856891e6c15b353e53b58c475df219c0ce887c588ea82404b53606d160dcb6942c613b426c271f49f497dad
SSDEEP

3072:lv6v8yo7nPcvE8LroAI1wMF78oXupTAVjN:lvJyo7PcvHoHuuBXKUp

Score

7^/10

discovery 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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	4ddc489c26a2319bf4f6421c6e0ab1f211037dfcc6e345145431b6139c7b0f61N.exe

Executes dropped EXE 6 IoCs

pid	Process
1668	winlogon.exe
2592	winlogon.exe
3156	winlogon.exe
4984	winlogon.exe
1832	winlogon.exe
4100	winlogon.exe

Suspicious use of SetThreadContext 6 IoCs

description	pid	Process	procid_target
PID 1344 set thread context of 3180	1344	4ddc489c26a2319bf4f6421c6e0ab1f211037dfcc6e345145431b6139c7b0f61N.exe	84
PID 1668 set thread context of 2592	1668	winlogon.exe	90
PID 2592 set thread context of 3156	2592	winlogon.exe	92
PID 2592 set thread context of 4984	2592	winlogon.exe	100
PID 2592 set thread context of 1832	2592	winlogon.exe	105
PID 2592 set thread context of 4100	2592	winlogon.exe	108

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3180-0-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/3180-3-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/3180-5-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/2592-23-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/2592-22-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/3180-18-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/2592-27-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/2592-30-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/2592-36-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/2592-41-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/2592-47-0x0000000000400000-0x0000000000419000-memory.dmp	upx

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
984	3156	WerFault.exe	92
2644	4984	WerFault.exe	100
632	1832	WerFault.exe	105
4292	4100	WerFault.exe	108

System Location Discovery: System Language Discovery 1 TTPs 4 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	4ddc489c26a2319bf4f6421c6e0ab1f211037dfcc6e345145431b6139c7b0f61N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4ddc489c26a2319bf4f6421c6e0ab1f211037dfcc6e345145431b6139c7b0f61N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winlogon.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winlogon.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3180	4ddc489c26a2319bf4f6421c6e0ab1f211037dfcc6e345145431b6139c7b0f61N.exe
2592	winlogon.exe

Suspicious use of WriteProcessMemory 57 IoCs

description	pid	Process	procid_target
PID 1344 wrote to memory of 2304	1344	4ddc489c26a2319bf4f6421c6e0ab1f211037dfcc6e345145431b6139c7b0f61N.exe	83
PID 1344 wrote to memory of 2304	1344	4ddc489c26a2319bf4f6421c6e0ab1f211037dfcc6e345145431b6139c7b0f61N.exe	83
PID 1344 wrote to memory of 2304	1344	4ddc489c26a2319bf4f6421c6e0ab1f211037dfcc6e345145431b6139c7b0f61N.exe	83
PID 1344 wrote to memory of 3180	1344	4ddc489c26a2319bf4f6421c6e0ab1f211037dfcc6e345145431b6139c7b0f61N.exe	84
PID 1344 wrote to memory of 3180	1344	4ddc489c26a2319bf4f6421c6e0ab1f211037dfcc6e345145431b6139c7b0f61N.exe	84
PID 1344 wrote to memory of 3180	1344	4ddc489c26a2319bf4f6421c6e0ab1f211037dfcc6e345145431b6139c7b0f61N.exe	84
PID 1344 wrote to memory of 3180	1344	4ddc489c26a2319bf4f6421c6e0ab1f211037dfcc6e345145431b6139c7b0f61N.exe	84
PID 1344 wrote to memory of 3180	1344	4ddc489c26a2319bf4f6421c6e0ab1f211037dfcc6e345145431b6139c7b0f61N.exe	84
PID 1344 wrote to memory of 3180	1344	4ddc489c26a2319bf4f6421c6e0ab1f211037dfcc6e345145431b6139c7b0f61N.exe	84
PID 1344 wrote to memory of 3180	1344	4ddc489c26a2319bf4f6421c6e0ab1f211037dfcc6e345145431b6139c7b0f61N.exe	84
PID 1344 wrote to memory of 3180	1344	4ddc489c26a2319bf4f6421c6e0ab1f211037dfcc6e345145431b6139c7b0f61N.exe	84
PID 3180 wrote to memory of 1668	3180	4ddc489c26a2319bf4f6421c6e0ab1f211037dfcc6e345145431b6139c7b0f61N.exe	88
PID 3180 wrote to memory of 1668	3180	4ddc489c26a2319bf4f6421c6e0ab1f211037dfcc6e345145431b6139c7b0f61N.exe	88
PID 3180 wrote to memory of 1668	3180	4ddc489c26a2319bf4f6421c6e0ab1f211037dfcc6e345145431b6139c7b0f61N.exe	88
PID 1668 wrote to memory of 1292	1668	winlogon.exe	89
PID 1668 wrote to memory of 1292	1668	winlogon.exe	89
PID 1668 wrote to memory of 1292	1668	winlogon.exe	89
PID 1668 wrote to memory of 2592	1668	winlogon.exe	90
PID 1668 wrote to memory of 2592	1668	winlogon.exe	90
PID 1668 wrote to memory of 2592	1668	winlogon.exe	90
PID 1668 wrote to memory of 2592	1668	winlogon.exe	90
PID 1668 wrote to memory of 2592	1668	winlogon.exe	90
PID 1668 wrote to memory of 2592	1668	winlogon.exe	90
PID 1668 wrote to memory of 2592	1668	winlogon.exe	90
PID 1668 wrote to memory of 2592	1668	winlogon.exe	90
PID 2592 wrote to memory of 3156	2592	winlogon.exe	92
PID 2592 wrote to memory of 3156	2592	winlogon.exe	92
PID 2592 wrote to memory of 3156	2592	winlogon.exe	92
PID 2592 wrote to memory of 3156	2592	winlogon.exe	92
PID 2592 wrote to memory of 3156	2592	winlogon.exe	92
PID 2592 wrote to memory of 3156	2592	winlogon.exe	92
PID 2592 wrote to memory of 3156	2592	winlogon.exe	92
PID 2592 wrote to memory of 3156	2592	winlogon.exe	92
PID 2592 wrote to memory of 4984	2592	winlogon.exe	100
PID 2592 wrote to memory of 4984	2592	winlogon.exe	100
PID 2592 wrote to memory of 4984	2592	winlogon.exe	100
PID 2592 wrote to memory of 4984	2592	winlogon.exe	100
PID 2592 wrote to memory of 4984	2592	winlogon.exe	100
PID 2592 wrote to memory of 4984	2592	winlogon.exe	100
PID 2592 wrote to memory of 4984	2592	winlogon.exe	100
PID 2592 wrote to memory of 4984	2592	winlogon.exe	100
PID 2592 wrote to memory of 1832	2592	winlogon.exe	105
PID 2592 wrote to memory of 1832	2592	winlogon.exe	105
PID 2592 wrote to memory of 1832	2592	winlogon.exe	105
PID 2592 wrote to memory of 1832	2592	winlogon.exe	105
PID 2592 wrote to memory of 1832	2592	winlogon.exe	105
PID 2592 wrote to memory of 1832	2592	winlogon.exe	105
PID 2592 wrote to memory of 1832	2592	winlogon.exe	105
PID 2592 wrote to memory of 1832	2592	winlogon.exe	105
PID 2592 wrote to memory of 4100	2592	winlogon.exe	108
PID 2592 wrote to memory of 4100	2592	winlogon.exe	108
PID 2592 wrote to memory of 4100	2592	winlogon.exe	108
PID 2592 wrote to memory of 4100	2592	winlogon.exe	108
PID 2592 wrote to memory of 4100	2592	winlogon.exe	108
PID 2592 wrote to memory of 4100	2592	winlogon.exe	108
PID 2592 wrote to memory of 4100	2592	winlogon.exe	108
PID 2592 wrote to memory of 4100	2592	winlogon.exe	108

C:\Users\Admin\AppData\Local\Temp\4ddc489c26a2319bf4f6421c6e0ab1f211037dfcc6e345145431b6139c7b0f61N.exe
"C:\Users\Admin\AppData\Local\Temp\4ddc489c26a2319bf4f6421c6e0ab1f211037dfcc6e345145431b6139c7b0f61N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1344
- C:\Windows\SysWOW64\svchost.exe
  C:\Windows\system32\\svchost.exe
  2⤵
  PID:2304
- C:\Users\Admin\AppData\Local\Temp\4ddc489c26a2319bf4f6421c6e0ab1f211037dfcc6e345145431b6139c7b0f61N.exe
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3180
- - C:\Users\Admin\E696D64614\winlogon.exe
    "C:\Users\Admin\E696D64614\winlogon.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1668
  - - C:\Windows\SysWOW64\svchost.exe
      C:\Windows\system32\\svchost.exe
      4⤵
      PID:1292
  - - C:\Users\Admin\E696D64614\winlogon.exe
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2592
    - - C:\Users\Admin\E696D64614\winlogon.exe
        
        "C:\Users\Admin\E696D64614\winlogon.exe"
        5⤵
        Executes dropped EXE
        
        PID:3156
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3156 -s 12
        6⤵
        Program crash
        
        PID:984
    - - C:\Users\Admin\E696D64614\winlogon.exe
        
        "C:\Users\Admin\E696D64614\winlogon.exe"
        5⤵
        Executes dropped EXE
        
        PID:4984
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4984 -s 12
        6⤵
        Program crash
        
        PID:2644
    - - C:\Users\Admin\E696D64614\winlogon.exe
        
        "C:\Users\Admin\E696D64614\winlogon.exe"
        5⤵
        Executes dropped EXE
        
        PID:1832
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1832 -s 12
        6⤵
        Program crash
        
        PID:632
    - - C:\Users\Admin\E696D64614\winlogon.exe
        
        "C:\Users\Admin\E696D64614\winlogon.exe"
        5⤵
        Executes dropped EXE
        
        PID:4100
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4100 -s 12
        6⤵
        Program crash
        
        PID:4292

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3156 -ip 3156
1⤵
PID:3160

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4984 -ip 4984
1⤵
PID:3440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 1832 -ip 1832
1⤵
PID:4904

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 4100 -ip 4100
1⤵
PID:4176

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
800KB

MD5
1fbafb7caa3240455eaf42ee4fe053d0

SHA1
2cc567399d0161bbd0783b2b597bb46bab49afdd

SHA256
4ddc489c26a2319bf4f6421c6e0ab1f211037dfcc6e345145431b6139c7b0f61

SHA512
0b622400bcfe9617c1f900e119d499f1b86d6aecf856891e6c15b353e53b58c475df219c0ce887c588ea82404b53606d160dcb6942c613b426c271f49f497dad

Download Submit
memory/1344-1-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/1668-26-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2592-27-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/2592-23-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/2592-22-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/2592-30-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/2592-36-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/2592-41-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/2592-47-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/3180-5-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/3180-3-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/3180-18-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/3180-0-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download