e17500cb8fe610d75e8f4f8ded49aedb5efe458eeb5a8bce8d0839669fdc47f1

Analysis

max time kernel
164s
max time network
171s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26/12/2023, 13:00

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General

Target

707aab5b6a36b0841bca699a86e2cba4.exe
Size

65KB
MD5

707aab5b6a36b0841bca699a86e2cba4
SHA1

8bb8138c41da32e322964ab989ce1243d54c3326
SHA256

e17500cb8fe610d75e8f4f8ded49aedb5efe458eeb5a8bce8d0839669fdc47f1
SHA512

5ab63023a7deaa7d72e66165e8b7cfb8d7986935f278d48f86121436b932a22dfdca0912e0bbf78faba20a1c159a449e88da96c05c9e86aec5447dee0c6a41aa
SSDEEP

1536:NOzLhppHB+klvIh31t/YETNMrvPhO3V8sCerjRIW8B49YedI7Kcs:kfh1otAgMrXhOcWjqW8BCYeKG7

Score

8^/10

persistence

Malware Config

Signatures

Sets DLL path for service in the registry 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\vrdnxg\Parameters\ServiceDll = "%SystemRoot%\\System32\\cuyrrn.dll"	707aab5b6a36b0841bca699a86e2cba4.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet002\Services\vrdnxg\Parameters\ServiceDll = "%SystemRoot%\\System32\\cuyrrn.dll"	707aab5b6a36b0841bca699a86e2cba4.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet003\Services\vrdnxg\Parameters\ServiceDll = "%SystemRoot%\\System32\\cuyrrn.dll"	707aab5b6a36b0841bca699a86e2cba4.exe

Deletes itself 1 IoCs

pid	Process
2776	svchost.exe

Loads dropped DLL 2 IoCs

pid	Process
1940	707aab5b6a36b0841bca699a86e2cba4.exe
2776	svchost.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\cuyrrn.dll	707aab5b6a36b0841bca699a86e2cba4.exe
File created	C:\Windows\SysWOW64\000527b4.sys	707aab5b6a36b0841bca699a86e2cba4.exe

C:\Users\Admin\AppData\Local\Temp\707aab5b6a36b0841bca699a86e2cba4.exe
"C:\Users\Admin\AppData\Local\Temp\707aab5b6a36b0841bca699a86e2cba4.exe"
1⤵
- Sets DLL path for service in the registry
- Loads dropped DLL
- Drops file in System32 directory
PID:1940

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k vrdnxg
1⤵
- Deletes itself
- Loads dropped DLL
PID:2776

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\??\c:\windows\SysWOW64\cuyrrn.dll

Filesize
58KB

MD5
58a442b1e3d70ddbd24d3ad769d2c900

SHA1
40d4f93d67c82ae6faf4567b3032c862bf94f56a

SHA256
56410a502dbc15bdc6a57a6b7add3d019a992fc1eead72733c31734130f5f1c4

SHA512
241f01bb8342ca135f9c4c30c54996bf21ad9dadf6ce63e57e7eaa4cdcf92b53ed59feecc5ba6d349faea236622b2ae1dba078e6c4f1d8d739a6a128c79fc2e5

Download Submit
memory/1940-0-0x0000000000400000-0x00000000004092E1-memory.dmp

Filesize
36KB

Download
memory/1940-6-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/1940-9-0x0000000000400000-0x00000000004092E1-memory.dmp

Filesize
36KB

Download
memory/2776-10-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads