ramnit | d3bc6d478fe83ba7eecb168c953da52e1c81c8254a043a1502d80f877d5c1388

Analysis

max time kernel
94s
max time network
112s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26/12/2024, 09:14

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General

Target

d3bc6d478fe83ba7eecb168c953da52e1c81c8254a043a1502d80f877d5c1388N.dll
Size

96KB
MD5

5a52b60311610893ed60516418324680
SHA1

3bbf7e700878a58e8fae80ceacae96a64740b976
SHA256

d3bc6d478fe83ba7eecb168c953da52e1c81c8254a043a1502d80f877d5c1388
SHA512

e28d1d37c165743c135026a04b748ae91703c4fb37bcfbcba6a3bce5832dbe50f568e7a1f98364444bcf4fb60f68858aee52722a648516fa65147aefd8dd282a
SSDEEP

1536:5ibToqp78CclR6LYRuh0VcULn4WaX6EVvTHX2XI+47qPM0LYp:5ibTTp78CcvIXh0VcUj4We62GIqPM0Ep

Score

10^/10

ramnit banker discovery spyware stealer trojan upx worm

Malware Config

Signatures

Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit
Ramnit family
ramnit

Executes dropped EXE 2 IoCs

pid	Process
920	rundll32Srv.exe
4896	DesktopLayer.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32Srv.exe	rundll32.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0009000000023c91-3.dat	upx
behavioral2/memory/920-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/920-7-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4896-13-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4896-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\pxB72A.tmp	rundll32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3224	544	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 4 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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32Srv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DesktopLayer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2743206864"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "441969444"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31151990"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2743206864"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31151990"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{CF246351-C369-11EF-B9D5-F6235BFAC6D3} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2748363404"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31151990"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4896	DesktopLayer.exe
4896	DesktopLayer.exe
4896	DesktopLayer.exe
4896	DesktopLayer.exe
4896	DesktopLayer.exe
4896	DesktopLayer.exe
4896	DesktopLayer.exe
4896	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3496	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3496	iexplore.exe
3496	iexplore.exe
1872	IEXPLORE.EXE
1872	IEXPLORE.EXE
1872	IEXPLORE.EXE
1872	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2772 wrote to memory of 544	2772	rundll32.exe	82
PID 2772 wrote to memory of 544	2772	rundll32.exe	82
PID 2772 wrote to memory of 544	2772	rundll32.exe	82
PID 544 wrote to memory of 920	544	rundll32.exe	83
PID 544 wrote to memory of 920	544	rundll32.exe	83
PID 544 wrote to memory of 920	544	rundll32.exe	83
PID 920 wrote to memory of 4896	920	rundll32Srv.exe	85
PID 920 wrote to memory of 4896	920	rundll32Srv.exe	85
PID 920 wrote to memory of 4896	920	rundll32Srv.exe	85
PID 4896 wrote to memory of 3496	4896	DesktopLayer.exe	86
PID 4896 wrote to memory of 3496	4896	DesktopLayer.exe	86
PID 3496 wrote to memory of 1872	3496	iexplore.exe	88
PID 3496 wrote to memory of 1872	3496	iexplore.exe	88
PID 3496 wrote to memory of 1872	3496	iexplore.exe	88

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d3bc6d478fe83ba7eecb168c953da52e1c81c8254a043a1502d80f877d5c1388N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2772
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\d3bc6d478fe83ba7eecb168c953da52e1c81c8254a043a1502d80f877d5c1388N.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:544
- - C:\Windows\SysWOW64\rundll32Srv.exe
    C:\Windows\SysWOW64\rundll32Srv.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:920
  - - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
      "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:4896
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:3496
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3496 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1872
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 544 -s 608
    3⤵
    - Program crash
    PID:3224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 544 -ip 544
1⤵
PID:8

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
73d8dd7eaa8896905e31f1960f51ece1

SHA1
164e031603e75d95091220c5ff0d695547f6d3ae

SHA256
9ff75ab638fe252bd0d04aea3f0ce38270ffc8df5db9399f9ea45aaef196dddc

SHA512
4879585482992d7ea3ee02775b74592b06daab32a63dc7700dd4da40c45a524f3bcfc2beff928a85563f09ad0438be5b3e458bc3d0cd08ad146d416fec014a04

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
404B

MD5
2eecb67c92b70b8fa742f771cdf81a67

SHA1
d421bfb871424dbd8872dfbcd2a4db0412e5d34f

SHA256
e1a163404b8a8c2b34243474cf4e5c8120eefc43c477c9bd91246540a7246d22

SHA512
db67f9bb550e263528c863d0692bbca1fdbf053166d2807ae5462a0eaa17b36f20d805cba624921e1d48e073e963e8a352b52346a6afeef375f48721ee52c9a6

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\FQRZN8O7\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Windows\SysWOW64\rundll32Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/544-0-0x000000006D080000-0x000000006D098000-memory.dmp

Filesize
96KB

Download
memory/544-17-0x000000006D080000-0x000000006D098000-memory.dmp

Filesize
96KB

Download
memory/920-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/920-5-0x0000000000590000-0x000000000059F000-memory.dmp

Filesize
60KB

Download
memory/920-7-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4896-14-0x0000000000590000-0x0000000000591000-memory.dmp

Filesize
4KB

Download
memory/4896-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4896-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download