b3df40d3dfe91591a1532cbd4f676d841f208e496298c2c31b1386b30b45fcf5

General

Target

b3df40d3dfe91591a1532cbd4f676d841f208e496298c2c31b1386b30b45fcf5.exe
Size

676KB
MD5

d848b72d1f7fc6a056bcc576897feff5
SHA1

b69f8527ae4f0f58034b072f15a150939f8db747
SHA256

b3df40d3dfe91591a1532cbd4f676d841f208e496298c2c31b1386b30b45fcf5
SHA512

14f95c1a6c265bf5166b2987c7faf6d4bc4fc725d8607878e0a82a78ae055be7061e94beacbf73aec1a1194807b3212629c762caa4efda76faafe6ce144d19ed
SSDEEP

12288:8K2mhAMJ/cPlUvVAeV2id7GPKirXxpz7A+TIP2WmcyoDJvmwD88y2fYZKknCHfoE:p2O/GlUvVAWd+rBp/1TC2WmcyCtz88yq

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Processes:

ygLHgdjnToq.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	ygLHgdjnToq.exe

Executes dropped EXE 1 IoCs

Processes:

ygLHgdjnToq.exe

pid process

4928 ygLHgdjnToq.exe

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

Processes:

b3df40d3dfe91591a1532cbd4f676d841f208e496298c2c31b1386b30b45fcf5.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	b3df40d3dfe91591a1532cbd4f676d841f208e496298c2c31b1386b30b45fcf5.exe

Adds Run key to start application 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

ygLHgdjnToq.exe

description	ioc	process
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN	ygLHgdjnToq.exe
Key deleted	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN	ygLHgdjnToq.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUNONCE	ygLHgdjnToq.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\CURRENTVERSION\RUNONCE	ygLHgdjnToq.exe
Key deleted	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUNONCE	ygLHgdjnToq.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce	ygLHgdjnToq.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\repair = "C:\\Users\\Admin\\AppData\\Local\\Temp\\repair\\ygLHgdjnToq.exe"	ygLHgdjnToq.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN	ygLHgdjnToq.exe

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\repair\ygLHgdjnToq.exe	autoit_exe
C:\Users\Admin\AppData\Local\Temp\repair\ygLHgdjnToq.exe	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

ygLHgdjnToq.exe

description pid process target process

PID 4928 set thread context of 3060 4928 ygLHgdjnToq.exe RegSvcs.exe
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

Processes:

WerFault.exe

pid pid_target process target process

4212 3060 WerFault.exe RegSvcs.exe

description	pid	process	target process
PID 4928 set thread context of 3060	4928	ygLHgdjnToq.exe	RegSvcs.exe

pid	pid_target	process	target process
4212	3060	WerFault.exe	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

ygLHgdjnToq.exe

pid	process
4928	ygLHgdjnToq.exe
4928	ygLHgdjnToq.exe
4928	ygLHgdjnToq.exe
4928	ygLHgdjnToq.exe
4928	ygLHgdjnToq.exe
4928	ygLHgdjnToq.exe
4928	ygLHgdjnToq.exe
4928	ygLHgdjnToq.exe
4928	ygLHgdjnToq.exe
4928	ygLHgdjnToq.exe
4928	ygLHgdjnToq.exe
4928	ygLHgdjnToq.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

b3df40d3dfe91591a1532cbd4f676d841f208e496298c2c31b1386b30b45fcf5.exeygLHgdjnToq.exe

description	pid	process	target process
PID 1180 wrote to memory of 4928	1180	b3df40d3dfe91591a1532cbd4f676d841f208e496298c2c31b1386b30b45fcf5.exe	ygLHgdjnToq.exe
PID 1180 wrote to memory of 4928	1180	b3df40d3dfe91591a1532cbd4f676d841f208e496298c2c31b1386b30b45fcf5.exe	ygLHgdjnToq.exe
PID 1180 wrote to memory of 4928	1180	b3df40d3dfe91591a1532cbd4f676d841f208e496298c2c31b1386b30b45fcf5.exe	ygLHgdjnToq.exe
PID 4928 wrote to memory of 3060	4928	ygLHgdjnToq.exe	RegSvcs.exe
PID 4928 wrote to memory of 3060	4928	ygLHgdjnToq.exe	RegSvcs.exe
PID 4928 wrote to memory of 3060	4928	ygLHgdjnToq.exe	RegSvcs.exe
PID 4928 wrote to memory of 3060	4928	ygLHgdjnToq.exe	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\b3df40d3dfe91591a1532cbd4f676d841f208e496298c2c31b1386b30b45fcf5.exe
"C:\Users\Admin\AppData\Local\Temp\b3df40d3dfe91591a1532cbd4f676d841f208e496298c2c31b1386b30b45fcf5.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1180
- C:\Users\Admin\AppData\Local\Temp\repair\ygLHgdjnToq.exe
  "C:\Users\Admin\AppData\Local\Temp\repair\ygLHgdjnToq.exe"
  2⤵
  - Modifies visiblity of hidden/system files in Explorer
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4928
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"
    3⤵
    PID:3060
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3060 -s 80
      4⤵
      Program crash
      PID:4212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3060 -ip 3060
1⤵
PID:788

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\repair\ygLHgdjnToq.exe

Filesize
992KB

MD5
3827071ae95dcfbfd0ca2b612a445275

SHA1
44232ee645620e9ea7f48780c3c04d7148604ab4

SHA256
eab051cab7ea2f7bc5cf8fd9d0e4e1d96de2ec0a7e7e739449caaf301b9a192a

SHA512
6fc0fd581c7a743ff4d5dd64459e9b833e3b3a9388ec4dc4fa3ae8c55eb6a84233a1dfa4c6cbfc7b076e368b5ab4b7a9c1da549e421f0063030d6c0a7aba2c8b

Download Submit
C:\Users\Admin\AppData\Local\Temp\repair\ygLHgdjnToq.exe

Filesize
992KB

MD5
3827071ae95dcfbfd0ca2b612a445275

SHA1
44232ee645620e9ea7f48780c3c04d7148604ab4

SHA256
eab051cab7ea2f7bc5cf8fd9d0e4e1d96de2ec0a7e7e739449caaf301b9a192a

SHA512
6fc0fd581c7a743ff4d5dd64459e9b833e3b3a9388ec4dc4fa3ae8c55eb6a84233a1dfa4c6cbfc7b076e368b5ab4b7a9c1da549e421f0063030d6c0a7aba2c8b

Download Submit
memory/3060-135-0x0000000000000000-mapping.dmp

Download
memory/4928-132-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads