ramnit | 3da2c1e161da9d036bd4987f77b617434fad50a5e1f69fbd89da839468115cd7

Analysis

max time kernel
93s
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
08-01-2025 19:32

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General

Target

3da2c1e161da9d036bd4987f77b617434fad50a5e1f69fbd89da839468115cd7N.dll
Size

547KB
MD5

a6c529a38efca7cbadddb13f1bfbeca0
SHA1

cba60d1521f3863b2a85948b8050f3303b51a886
SHA256

3da2c1e161da9d036bd4987f77b617434fad50a5e1f69fbd89da839468115cd7
SHA512

483c71a3d769b9e610502ff9a58809c2ae7a12d73d036d4296a1d5f724391d51c7bd0a9ba67c466546244c101e3931aa8359f198bf207c5042d2c997ac6ceb72
SSDEEP

6144:OI/nB/9B0JQjRIntsEt45OvoU4Djn+sSAdfTmFdSm4FI/nNYV03S8ytG5dHL+SNh:O6vWJEut/oUaLd7lFI/nHDXZ

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
3796	rundll32Srv.exe
3212	DesktopLayer.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000b000000023bb1-3.dat	upx
behavioral2/memory/3796-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/3796-7-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/3212-11-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/3212-17-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/3212-16-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/3796-14-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px7F23.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

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 32 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "772018491"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "774205565"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "774205565"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31154692"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31154692"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "443129746"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "772018491"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31154692"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31154692"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{5989D45C-CDF7-11EF-B9B6-5227CD58F2D9} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3212	DesktopLayer.exe
3212	DesktopLayer.exe
3212	DesktopLayer.exe
3212	DesktopLayer.exe
3212	DesktopLayer.exe
3212	DesktopLayer.exe
3212	DesktopLayer.exe
3212	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3636	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3636	iexplore.exe
3636	iexplore.exe
4252	IEXPLORE.EXE
4252	IEXPLORE.EXE
4252	IEXPLORE.EXE
4252	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1100 wrote to memory of 4044	1100	rundll32.exe	83
PID 1100 wrote to memory of 4044	1100	rundll32.exe	83
PID 1100 wrote to memory of 4044	1100	rundll32.exe	83
PID 4044 wrote to memory of 3796	4044	rundll32.exe	84
PID 4044 wrote to memory of 3796	4044	rundll32.exe	84
PID 4044 wrote to memory of 3796	4044	rundll32.exe	84
PID 3796 wrote to memory of 3212	3796	rundll32Srv.exe	85
PID 3796 wrote to memory of 3212	3796	rundll32Srv.exe	85
PID 3796 wrote to memory of 3212	3796	rundll32Srv.exe	85
PID 3212 wrote to memory of 3636	3212	DesktopLayer.exe	86
PID 3212 wrote to memory of 3636	3212	DesktopLayer.exe	86
PID 3636 wrote to memory of 4252	3636	iexplore.exe	87
PID 3636 wrote to memory of 4252	3636	iexplore.exe	87
PID 3636 wrote to memory of 4252	3636	iexplore.exe	87

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3da2c1e161da9d036bd4987f77b617434fad50a5e1f69fbd89da839468115cd7N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1100
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\3da2c1e161da9d036bd4987f77b617434fad50a5e1f69fbd89da839468115cd7N.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4044
- - 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:3796
  - - 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:3212
    - - 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:3636
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3636 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4252

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
9ff670ce735bcb3f1852fb17230eb4d1

SHA1
343b84e90eba5ba52ffde84efffc722d9aaef34c

SHA256
d5171888f2cf311802c4e02bcc7be88f684075e84d0665f44b823e6b6a5ead5f

SHA512
73e4531ae7a0273390be09ea835d4970b4e5053988f9bf48e55afabcf184aae29d267f31d43250c1d5baa721a23c51a0dd1c46d4acf3a747abc575b6f23bc120

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

Filesize
404B

MD5
a129451f3bab65ce464754986bdb5879

SHA1
713b814f62bf6d84e52d3d0fa7c53dd1553d37fd

SHA256
795bb3e89a3b52af2be7bc0509e1387a6317e19e2c228a0e36ba69bc4df072d8

SHA512
a7a5974f437371991ec4874f95ad36a3d7d148dcccf5c120ab2c364487fb0a0b819fbb211cbb1a711d8ef4b4364db3e002e666c1bf43b4ec47056ee626a390ae

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verF712.tmp

Filesize
15KB

MD5
1a545d0052b581fbb2ab4c52133846bc

SHA1
62f3266a9b9925cd6d98658b92adec673cbe3dd3

SHA256
557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

SHA512
bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\9MFSIIMR\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/3212-11-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3212-17-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3212-16-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3212-15-0x0000000000560000-0x0000000000561000-memory.dmp

Filesize
4KB

Download
memory/3796-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3796-14-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3796-7-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3796-5-0x0000000000440000-0x000000000044F000-memory.dmp

Filesize
60KB

Download
memory/4044-0-0x00000000753D0000-0x000000007545C000-memory.dmp

Filesize
560KB

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