d1439d55ce18c01e3e7433168f2522ac37961c3733ec6bead79e8a29318702cf

Analysis

max time kernel
145s
max time network
172s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
03/12/2022, 04:18

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General

Target
d1439d55ce18c01e3e7433168f2522ac37961c3733ec6bead79e8a29318702cf.exe
Size 539KB
Sample221203-exdy7sde79
SHA256 d1439d55ce18c01e3e7433168f2522ac37961c3733ec6bead79e8a29318702cf
MD5 3cd30c32206e49258dcd1fbc2578235e
SHA1 219a1894b8973beab2911b5f0b1491be79441f44
SHA512 1360ae3d2b230cc8412a46df8f3d0822a2e32bbe79a8b0c2f78b8c91ef1759b30a10b4d719faf6ea887f6ec14a519aa13965c272875464828403b742f1a1ab75
SSDEEP 1536:zIpv7+fwehaRivCVr0Ivr0evJi4WWlxw5tOpvFrP+D2cFnoh:MpvScYCl19YdWlxmovZ2DLF
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 3 IoCs

pid	Process
4968	winlogon.exe
1348	winlogon.exe
3592	winlogon.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2700-134-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/2700-136-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/2700-137-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/2700-140-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/2700-145-0x0000000000400000-0x0000000000419000-memory.dmp	upx
behavioral2/memory/1348-154-0x0000000000400000-0x0000000000419000-memory.dmp	upx

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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	d1439d55ce18c01e3e7433168f2522ac37961c3733ec6bead79e8a29318702cf.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2116 set thread context of 2700	2116	d1439d55ce18c01e3e7433168f2522ac37961c3733ec6bead79e8a29318702cf.exe	81
PID 4968 set thread context of 1348	4968	winlogon.exe	85
PID 1348 set thread context of 3592	1348	winlogon.exe	87

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1184	3592	WerFault.exe	87

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2700	d1439d55ce18c01e3e7433168f2522ac37961c3733ec6bead79e8a29318702cf.exe
1348	winlogon.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2116 wrote to memory of 3088	2116	d1439d55ce18c01e3e7433168f2522ac37961c3733ec6bead79e8a29318702cf.exe	80
PID 2116 wrote to memory of 3088	2116	d1439d55ce18c01e3e7433168f2522ac37961c3733ec6bead79e8a29318702cf.exe	80
PID 2116 wrote to memory of 3088	2116	d1439d55ce18c01e3e7433168f2522ac37961c3733ec6bead79e8a29318702cf.exe	80
PID 2116 wrote to memory of 2700	2116	d1439d55ce18c01e3e7433168f2522ac37961c3733ec6bead79e8a29318702cf.exe	81
PID 2116 wrote to memory of 2700	2116	d1439d55ce18c01e3e7433168f2522ac37961c3733ec6bead79e8a29318702cf.exe	81
PID 2116 wrote to memory of 2700	2116	d1439d55ce18c01e3e7433168f2522ac37961c3733ec6bead79e8a29318702cf.exe	81
PID 2116 wrote to memory of 2700	2116	d1439d55ce18c01e3e7433168f2522ac37961c3733ec6bead79e8a29318702cf.exe	81
PID 2116 wrote to memory of 2700	2116	d1439d55ce18c01e3e7433168f2522ac37961c3733ec6bead79e8a29318702cf.exe	81
PID 2116 wrote to memory of 2700	2116	d1439d55ce18c01e3e7433168f2522ac37961c3733ec6bead79e8a29318702cf.exe	81
PID 2116 wrote to memory of 2700	2116	d1439d55ce18c01e3e7433168f2522ac37961c3733ec6bead79e8a29318702cf.exe	81
PID 2116 wrote to memory of 2700	2116	d1439d55ce18c01e3e7433168f2522ac37961c3733ec6bead79e8a29318702cf.exe	81
PID 2700 wrote to memory of 4968	2700	d1439d55ce18c01e3e7433168f2522ac37961c3733ec6bead79e8a29318702cf.exe	83
PID 2700 wrote to memory of 4968	2700	d1439d55ce18c01e3e7433168f2522ac37961c3733ec6bead79e8a29318702cf.exe	83
PID 2700 wrote to memory of 4968	2700	d1439d55ce18c01e3e7433168f2522ac37961c3733ec6bead79e8a29318702cf.exe	83
PID 4968 wrote to memory of 3680	4968	winlogon.exe	84
PID 4968 wrote to memory of 3680	4968	winlogon.exe	84
PID 4968 wrote to memory of 3680	4968	winlogon.exe	84
PID 4968 wrote to memory of 1348	4968	winlogon.exe	85
PID 4968 wrote to memory of 1348	4968	winlogon.exe	85
PID 4968 wrote to memory of 1348	4968	winlogon.exe	85
PID 4968 wrote to memory of 1348	4968	winlogon.exe	85
PID 4968 wrote to memory of 1348	4968	winlogon.exe	85
PID 4968 wrote to memory of 1348	4968	winlogon.exe	85
PID 4968 wrote to memory of 1348	4968	winlogon.exe	85
PID 4968 wrote to memory of 1348	4968	winlogon.exe	85
PID 1348 wrote to memory of 3592	1348	winlogon.exe	87
PID 1348 wrote to memory of 3592	1348	winlogon.exe	87
PID 1348 wrote to memory of 3592	1348	winlogon.exe	87
PID 1348 wrote to memory of 3592	1348	winlogon.exe	87
PID 1348 wrote to memory of 3592	1348	winlogon.exe	87
PID 1348 wrote to memory of 3592	1348	winlogon.exe	87
PID 1348 wrote to memory of 3592	1348	winlogon.exe	87
PID 1348 wrote to memory of 3592	1348	winlogon.exe	87

C:\Users\Admin\AppData\Local\Temp\d1439d55ce18c01e3e7433168f2522ac37961c3733ec6bead79e8a29318702cf.exe
"C:\Users\Admin\AppData\Local\Temp\d1439d55ce18c01e3e7433168f2522ac37961c3733ec6bead79e8a29318702cf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2116
- C:\Windows\SysWOW64\svchost.exe
  C:\Windows\system32\\svchost.exe
  2⤵
  PID:3088
- C:\Users\Admin\AppData\Local\Temp\d1439d55ce18c01e3e7433168f2522ac37961c3733ec6bead79e8a29318702cf.exe
  2⤵
  - Checks computer location settings
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2700
- - 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:4968
  - - C:\Windows\SysWOW64\svchost.exe
      C:\Windows\system32\\svchost.exe
      4⤵
      PID:3680
  - - C:\Users\Admin\E696D64614\winlogon.exe
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:1348
    - - C:\Users\Admin\E696D64614\winlogon.exe
        
        "C:\Users\Admin\E696D64614\winlogon.exe"
        5⤵
        Executes dropped EXE
        
        PID:3592
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3592 -s 12
        6⤵
        Program crash
        
        PID:1184

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3592 -ip 3592
1⤵
PID:2664

Network

MITRE ATT&CK Enterprise v6

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

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Downloads

winlogon.exe

Path C:\Users\Admin\E696D64614\winlogon.exe
Size 539KB
SHA256 d1439d55ce18c01e3e7433168f2522ac37961c3733ec6bead79e8a29318702cf
MD5 3cd30c32206e49258dcd1fbc2578235e
SHA1 219a1894b8973beab2911b5f0b1491be79441f44
SHA512 1360ae3d2b230cc8412a46df8f3d0822a2e32bbe79a8b0c2f78b8c91ef1759b30a10b4d719faf6ea887f6ec14a519aa13965c272875464828403b742f1a1ab75
SSDEEP 1536:zIpv7+fwehaRivCVr0Ivr0evJi4WWlxw5tOpvFrP+D2cFnoh:MpvScYCl19YdWlxmovZ2DLF
MD5 SHA1 SHA512 SSDEEP

Submit Download

winlogon.exe

Path C:\Users\Admin\E696D64614\winlogon.exe
Size 539KB
SHA256 d1439d55ce18c01e3e7433168f2522ac37961c3733ec6bead79e8a29318702cf
MD5 3cd30c32206e49258dcd1fbc2578235e
SHA1 219a1894b8973beab2911b5f0b1491be79441f44
SHA512 1360ae3d2b230cc8412a46df8f3d0822a2e32bbe79a8b0c2f78b8c91ef1759b30a10b4d719faf6ea887f6ec14a519aa13965c272875464828403b742f1a1ab75
SSDEEP 1536:zIpv7+fwehaRivCVr0Ivr0evJi4WWlxw5tOpvFrP+D2cFnoh:MpvScYCl19YdWlxmovZ2DLF
MD5 SHA1 SHA512 SSDEEP

Submit Download

winlogon.exe

Path C:\Users\Admin\E696D64614\winlogon.exe
Size 539KB
SHA256 d1439d55ce18c01e3e7433168f2522ac37961c3733ec6bead79e8a29318702cf
MD5 3cd30c32206e49258dcd1fbc2578235e
SHA1 219a1894b8973beab2911b5f0b1491be79441f44
SHA512 1360ae3d2b230cc8412a46df8f3d0822a2e32bbe79a8b0c2f78b8c91ef1759b30a10b4d719faf6ea887f6ec14a519aa13965c272875464828403b742f1a1ab75
SSDEEP 1536:zIpv7+fwehaRivCVr0Ivr0evJi4WWlxw5tOpvFrP+D2cFnoh:MpvScYCl19YdWlxmovZ2DLF
MD5 SHA1 SHA512 SSDEEP

Submit Download

winlogon.exe

Path C:\Users\Admin\E696D64614\winlogon.exe
Size 539KB
SHA256 d1439d55ce18c01e3e7433168f2522ac37961c3733ec6bead79e8a29318702cf
MD5 3cd30c32206e49258dcd1fbc2578235e
SHA1 219a1894b8973beab2911b5f0b1491be79441f44
SHA512 1360ae3d2b230cc8412a46df8f3d0822a2e32bbe79a8b0c2f78b8c91ef1759b30a10b4d719faf6ea887f6ec14a519aa13965c272875464828403b742f1a1ab75
SSDEEP 1536:zIpv7+fwehaRivCVr0Ivr0evJi4WWlxw5tOpvFrP+D2cFnoh:MpvScYCl19YdWlxmovZ2DLF
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1348-154-0x0000000000400000-0x0000000000419000-memory.dmp

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memory/2700-145-0x0000000000400000-0x0000000000419000-memory.dmp

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memory/2700-140-0x0000000000400000-0x0000000000419000-memory.dmp

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memory/2700-137-0x0000000000400000-0x0000000000419000-memory.dmp

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memory/2700-136-0x0000000000400000-0x0000000000419000-memory.dmp

Download

memory/2700-134-0x0000000000400000-0x0000000000419000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads