1257eb42368501130beff8430eb2ddfbf957838f94b1588d857c4ce17040c89c

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03/10/2024, 15:07

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General

Target

niebar.dll
Size

253KB
MD5

cb504a159d0c8ace5562e85613540219
SHA1

9c5b9ccddadc60d6dd218533c80935a6bcc1aa4e
SHA256

1ff0c6b1d48dc340c5c7113768fbdca3b3baaecf59f944e4d0be5231e24e75eb
SHA512

30477727ad38a66d09b992f6c907b2dde949819d2ae732f276c47bd05ce2fbcc4d3a39e0562c3371e761e4efdae585942288c6e2e1fc53cc1945a2f35990b872
SSDEEP

6144:8eWm+TmuHTia7tsU0B9xfYW+BCexidmwExwT53CHly:8e1+SuHTR7GU0n1N+Udmw4GCHl

Score

5^/10

discovery upx

Malware Config

Signatures

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral15/memory/2704-0-0x00000000022D0000-0x0000000002381000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 1 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	regsvr32.exe

Modifies Internet Explorer settings 1 TTPs 3 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Explorer Bars\{9CC3DECA-53F1-441B-A0FB-369633975784}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Explorer Bars	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Explorer Bars\{9CC3DECA-53F1-441B-A0FB-369633975784}\	regsvr32.exe

Modifies registry class 11 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9CC3DECA-53F1-441B-A0FB-369633975784}\Implemented Categories\{00021493-0000-0000-C000-000000000046}\	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9CC3DECA-53F1-441B-A0FB-369633975784}\ = "ÃßÃµ»çÀÌÆ®"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9CC3DECA-53F1-441B-A0FB-369633975784}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9CC3DECA-53F1-441B-A0FB-369633975784}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\niebar.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9CC3DECA-53F1-441B-A0FB-369633975784}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9CC3DECA-53F1-441B-A0FB-369633975784}\InProcServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9CC3DECA-53F1-441B-A0FB-369633975784}\Implemented Categories	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9CC3DECA-53F1-441B-A0FB-369633975784}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9CC3DECA-53F1-441B-A0FB-369633975784}\Implemented Categories\{00021493-0000-0000-C000-000000000046}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2156 wrote to memory of 2704	2156	regsvr32.exe	30
PID 2156 wrote to memory of 2704	2156	regsvr32.exe	30
PID 2156 wrote to memory of 2704	2156	regsvr32.exe	30
PID 2156 wrote to memory of 2704	2156	regsvr32.exe	30
PID 2156 wrote to memory of 2704	2156	regsvr32.exe	30
PID 2156 wrote to memory of 2704	2156	regsvr32.exe	30
PID 2156 wrote to memory of 2704	2156	regsvr32.exe	30

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\niebar.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2156
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\niebar.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Modifies registry class
  PID:2704

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2704-0-0x00000000022D0000-0x0000000002381000-memory.dmp

Filesize
708KB

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