dfd8bb785c53a7b2d3cddf680dbb1388d6089450a65ca8e9b7f5f5168ec028e1

Analysis

max time kernel
159s
max time network
184s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
01/12/2022, 16:44

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General

Target

dfd8bb785c53a7b2d3cddf680dbb1388d6089450a65ca8e9b7f5f5168ec028e1.exe
Size

98KB
MD5

25b3f992c2ab8e8b12e8684dcd00e5e0
SHA1

c05df6faa70f9311f5ff39ed3f117cbba4c1e9e3
SHA256

dfd8bb785c53a7b2d3cddf680dbb1388d6089450a65ca8e9b7f5f5168ec028e1
SHA512

6adf828c448297d68e0842ad74f36674ab0d2fa1dd5a2a1d35cfc7a9078868e71d1f250be220abc88f7c73675b9218f8e4b845ed5bc42942ba6dc69213243897
SSDEEP

1536:MMMamqCubWRVoIHQ9SMxevLrs9zq/+gMYq0rkIdHx9mB8HxWZozbY6BJymq7vUq:IQbWwIHEgv0QpMTIlXWZozbYPmeqV

Score

10^/10

persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\WINDOWS\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\lsass.exe"	reg.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1560-132-0x0000000000400000-0x0000000000431000-memory.dmp	upx
behavioral2/memory/1560-134-0x0000000000400000-0x0000000000431000-memory.dmp	upx
behavioral2/memory/1560-141-0x0000000000400000-0x0000000000431000-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-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	dfd8bb785c53a7b2d3cddf680dbb1388d6089450a65ca8e9b7f5f5168ec028e1.exe

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

System Information Discovery
T1082

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1580	cmd.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1560 wrote to memory of 1252	1560	dfd8bb785c53a7b2d3cddf680dbb1388d6089450a65ca8e9b7f5f5168ec028e1.exe	79
PID 1560 wrote to memory of 1252	1560	dfd8bb785c53a7b2d3cddf680dbb1388d6089450a65ca8e9b7f5f5168ec028e1.exe	79
PID 1560 wrote to memory of 1252	1560	dfd8bb785c53a7b2d3cddf680dbb1388d6089450a65ca8e9b7f5f5168ec028e1.exe	79
PID 1560 wrote to memory of 780	1560	dfd8bb785c53a7b2d3cddf680dbb1388d6089450a65ca8e9b7f5f5168ec028e1.exe	81
PID 1560 wrote to memory of 780	1560	dfd8bb785c53a7b2d3cddf680dbb1388d6089450a65ca8e9b7f5f5168ec028e1.exe	81
PID 1560 wrote to memory of 780	1560	dfd8bb785c53a7b2d3cddf680dbb1388d6089450a65ca8e9b7f5f5168ec028e1.exe	81
PID 1560 wrote to memory of 4576	1560	dfd8bb785c53a7b2d3cddf680dbb1388d6089450a65ca8e9b7f5f5168ec028e1.exe	83
PID 1560 wrote to memory of 4576	1560	dfd8bb785c53a7b2d3cddf680dbb1388d6089450a65ca8e9b7f5f5168ec028e1.exe	83
PID 1560 wrote to memory of 4576	1560	dfd8bb785c53a7b2d3cddf680dbb1388d6089450a65ca8e9b7f5f5168ec028e1.exe	83
PID 1560 wrote to memory of 1460	1560	dfd8bb785c53a7b2d3cddf680dbb1388d6089450a65ca8e9b7f5f5168ec028e1.exe	86
PID 1560 wrote to memory of 1460	1560	dfd8bb785c53a7b2d3cddf680dbb1388d6089450a65ca8e9b7f5f5168ec028e1.exe	86
PID 1560 wrote to memory of 1460	1560	dfd8bb785c53a7b2d3cddf680dbb1388d6089450a65ca8e9b7f5f5168ec028e1.exe	86
PID 1252 wrote to memory of 1580	1252	cmd.exe	85
PID 1252 wrote to memory of 1580	1252	cmd.exe	85
PID 1252 wrote to memory of 1580	1252	cmd.exe	85
PID 780 wrote to memory of 2304	780	cmd.exe	88
PID 780 wrote to memory of 2304	780	cmd.exe	88
PID 780 wrote to memory of 2304	780	cmd.exe	88
PID 4576 wrote to memory of 2560	4576	cmd.exe	89
PID 4576 wrote to memory of 2560	4576	cmd.exe	89
PID 4576 wrote to memory of 2560	4576	cmd.exe	89
PID 2304 wrote to memory of 2484	2304	cmd.exe	90
PID 2304 wrote to memory of 2484	2304	cmd.exe	90
PID 2304 wrote to memory of 2484	2304	cmd.exe	90
PID 2560 wrote to memory of 4836	2560	cmd.exe	91
PID 2560 wrote to memory of 4836	2560	cmd.exe	91
PID 2560 wrote to memory of 4836	2560	cmd.exe	91
PID 1460 wrote to memory of 4916	1460	cmd.exe	92
PID 1460 wrote to memory of 4916	1460	cmd.exe	92
PID 1460 wrote to memory of 4916	1460	cmd.exe	92
PID 4916 wrote to memory of 2716	4916	cmd.exe	93
PID 4916 wrote to memory of 2716	4916	cmd.exe	93
PID 4916 wrote to memory of 2716	4916	cmd.exe	93

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
4836	attrib.exe
2716	attrib.exe

C:\Users\Admin\AppData\Local\Temp\dfd8bb785c53a7b2d3cddf680dbb1388d6089450a65ca8e9b7f5f5168ec028e1.exe
"C:\Users\Admin\AppData\Local\Temp\dfd8bb785c53a7b2d3cddf680dbb1388d6089450a65ca8e9b7f5f5168ec028e1.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1560
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c cmd /c move /y "C:\USERS\ADMIN\APPDATA\LOCAL\TEMP\dfd8bb785c53a7b2d3cddf680dbb1388d6089450a65ca8e9b7f5f5168ec028e1.exe" "C:\Users\Admin\AppData\lsass.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1252
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c move /y "C:\USERS\ADMIN\APPDATA\LOCAL\TEMP\dfd8bb785c53a7b2d3cddf680dbb1388d6089450a65ca8e9b7f5f5168ec028e1.exe" "C:\Users\Admin\AppData\lsass.exe"
    3⤵
    - Suspicious behavior: RenamesItself
    PID:1580
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c cmd /c reg add "hkey_local_machine\software\microsoft\windows nt\currentversion\winlogon" /v userinit /t reg_sz /d "C:\WINDOWS\system32\userinit.exe,C:\Users\Admin\AppData\lsass.exe" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:780
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c reg add "hkey_local_machine\software\microsoft\windows nt\currentversion\winlogon" /v userinit /t reg_sz /d "C:\WINDOWS\system32\userinit.exe,C:\Users\Admin\AppData\lsass.exe" /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2304
  - - C:\Windows\SysWOW64\reg.exe
      reg add "hkey_local_machine\software\microsoft\windows nt\currentversion\winlogon" /v userinit /t reg_sz /d "C:\WINDOWS\system32\userinit.exe,C:\Users\Admin\AppData\lsass.exe" /f
      4⤵
      Modifies WinLogon for persistence
      PID:2484
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c cmd /c attrib +h "C:\Users\Admin\AppData\lsass.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4576
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib +h "C:\Users\Admin\AppData\lsass.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2560
  - - C:\Windows\SysWOW64\attrib.exe
      attrib +h "C:\Users\Admin\AppData\lsass.exe"
      4⤵
      Views/modifies file attributes
      PID:4836
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c cmd /c attrib +h "C:\Users\Admin\AppData"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1460
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib +h "C:\Users\Admin\AppData"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4916
  - - C:\Windows\SysWOW64\attrib.exe
      attrib +h "C:\Users\Admin\AppData"
      4⤵
      Views/modifies file attributes
      PID:2716

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1560-135-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/1560-134-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/1560-132-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/1560-141-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads