ramnit | 09e51fde1082529f167b94b89e89df536e0c74f97045f67ae58034ebab0ef64f

Analysis

max time kernel
4s
max time network
115s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-12-2024 19:59

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General

Target

09e51fde1082529f167b94b89e89df536e0c74f97045f67ae58034ebab0ef64fN.dll
Size

724KB
MD5

cd4c6720ff5eb2c0cb4f262544d5ec80
SHA1

e458b59dbadfa639fb59a2898cea2d834aa31ab9
SHA256

09e51fde1082529f167b94b89e89df536e0c74f97045f67ae58034ebab0ef64f
SHA512

caefe22441ff7de914ea0dae09160624f928fcd374f59341d085679554bbdd7913d6c89c7f0b8d6946301ff06029ecd1a8d5dc3b1acdfc9ec2552534aa2de9f8
SSDEEP

12288:rzb9rMfc+CKUQyUmjtc4euuzPrs9pGp8hunWoopooK9kwPkQ:rzb1MlCKUQyUmjtczu6Prs9pgWoopooE

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
2676	rundll32mgr.exe
2032	WaterMark.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32mgr.exe	rundll32.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2032-14-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2676-6-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2032-22-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2032-24-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px83D6.tmp	rundll32mgr.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32mgr.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32mgr.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3640	1144	WerFault.exe	85

System Location Discovery: System Language Discovery 1 TTPs 5 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	IEXPLORE.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32mgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WaterMark.exe

Modifies Internet Explorer settings 1 TTPs 26 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{4A9B2A30-B731-11EF-ADF2-C67090DD1599} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\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
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{4A9D8C2E-B731-11EF-ADF2-C67090DD1599} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff3e0000003e000000c4040000a3020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
2032	WaterMark.exe
2032	WaterMark.exe
2032	WaterMark.exe
2032	WaterMark.exe
2032	WaterMark.exe
2032	WaterMark.exe
2032	WaterMark.exe
2032	WaterMark.exe
2032	WaterMark.exe
2032	WaterMark.exe
2032	WaterMark.exe
2032	WaterMark.exe
2032	WaterMark.exe
2032	WaterMark.exe
2032	WaterMark.exe
2032	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2032	WaterMark.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
560	iexplore.exe
1076	iexplore.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
1076	iexplore.exe
1076	iexplore.exe
560	iexplore.exe
560	iexplore.exe
3816	IEXPLORE.EXE
3816	IEXPLORE.EXE
2160	IEXPLORE.EXE
2160	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2228 wrote to memory of 3240	2228	rundll32.exe	82
PID 2228 wrote to memory of 3240	2228	rundll32.exe	82
PID 2228 wrote to memory of 3240	2228	rundll32.exe	82
PID 3240 wrote to memory of 2676	3240	rundll32.exe	83
PID 3240 wrote to memory of 2676	3240	rundll32.exe	83
PID 3240 wrote to memory of 2676	3240	rundll32.exe	83
PID 2676 wrote to memory of 2032	2676	rundll32mgr.exe	84
PID 2676 wrote to memory of 2032	2676	rundll32mgr.exe	84
PID 2676 wrote to memory of 2032	2676	rundll32mgr.exe	84
PID 2032 wrote to memory of 1144	2032	WaterMark.exe	85
PID 2032 wrote to memory of 1144	2032	WaterMark.exe	85
PID 2032 wrote to memory of 1144	2032	WaterMark.exe	85
PID 2032 wrote to memory of 1144	2032	WaterMark.exe	85
PID 2032 wrote to memory of 1144	2032	WaterMark.exe	85
PID 2032 wrote to memory of 1144	2032	WaterMark.exe	85
PID 2032 wrote to memory of 1144	2032	WaterMark.exe	85
PID 2032 wrote to memory of 1144	2032	WaterMark.exe	85
PID 2032 wrote to memory of 1144	2032	WaterMark.exe	85
PID 2032 wrote to memory of 1076	2032	WaterMark.exe	89
PID 2032 wrote to memory of 1076	2032	WaterMark.exe	89
PID 2032 wrote to memory of 560	2032	WaterMark.exe	90
PID 2032 wrote to memory of 560	2032	WaterMark.exe	90
PID 560 wrote to memory of 3816	560	iexplore.exe	91
PID 560 wrote to memory of 3816	560	iexplore.exe	91
PID 560 wrote to memory of 3816	560	iexplore.exe	91
PID 1076 wrote to memory of 2160	1076	iexplore.exe	92
PID 1076 wrote to memory of 2160	1076	iexplore.exe	92
PID 1076 wrote to memory of 2160	1076	iexplore.exe	92

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\09e51fde1082529f167b94b89e89df536e0c74f97045f67ae58034ebab0ef64fN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2228
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\09e51fde1082529f167b94b89e89df536e0c74f97045f67ae58034ebab0ef64fN.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3240
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2676
  - - C:\Program Files (x86)\Microsoft\WaterMark.exe
      "C:\Program Files (x86)\Microsoft\WaterMark.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:2032
    - - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        5⤵
        
        PID:1144
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1144 -s 204
        6⤵
        Program crash
        
        PID:3640
    - - 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:1076
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1076 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:2160
    - - 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:560
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:560 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:3816

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1144 -ip 1144
1⤵
PID:3896

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
87f8376b71b1fd35da4b511eff055888

SHA1
0c55fba0aa699282bbe4d129dd0ba16d4e377ce9

SHA256
a1383ed3b4f8967fb19f5b16bfe41eb3242b296ffc06c1098fbe1d1a04a7003f

SHA512
8556ed20a3d9daf8f74b2eceaab6a3773b69d5c9524ba8dbb8af1ad64b2235165e487c41646e357be5906aaa7f0f4c57ff8dc9ea2acc0c87f443d3ad083c9031

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

Filesize
404B

MD5
8efee420994f5d3e67bf2b03ec8df9d8

SHA1
b567f5067b56243b109ab95823f7afc6dd3035ac

SHA256
b444adddd7ceeeb1f3d53c9c72f2324975b1503ecba1c5ee0848a89ddcd2d321

SHA512
8db484857fcb536d22305a7b7e197a825ac9f03574c209ceb37cc05d2fe747e61afe720ea4990ece94eefa089eb59f4660e4d3de1863a8ae5759e0f9db352186

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

Filesize
404B

MD5
bea02813b75ce2c1e2bd0bea279e97a7

SHA1
db64a528e8589c39e73c0aa574cc2c0927f2194a

SHA256
f4bc572366606a722e22119a732bab9198172163d9d946ee3e1a3a4679f913f4

SHA512
d04766588abb03d95d49e4023561576bb4bfddd5cad9bd8c5aba6951ede01b23060f20faf545b409d9b62edf43f26e1965fb7a0a66a15a4bf1cf102a06e7353c

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{4A9B2A30-B731-11EF-ADF2-C67090DD1599}.dat

Filesize
3KB

MD5
64944b0140adc9c6f8d44f03ed5c6205

SHA1
b23095de7345da91765103c4d18f547ef246858f

SHA256
fdd2b6b8caa6ff3edebe91771c185e12b7923f155e68a26327435256918a4fc6

SHA512
b8e852e3d88b04c660541b7393d6f83fc20daef45333eb68ed32863b429c722b29a8ffc2b758292dbbd253d81f7bca1f6f9b714e22ce1ecbe08777396dfd70ae

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{4A9D8C2E-B731-11EF-ADF2-C67090DD1599}.dat

Filesize
5KB

MD5
4aa423ef879994f13cebcdfc0c9be14d

SHA1
2b22fdaacd57cfe0d51e0ec2ff6393e6cd6b0977

SHA256
5c7d0d20d98444e8c1759082555c6765572c16f0b3938aad8fa6ffec6778563d

SHA512
2d7d90b194c09e778f72a2616ede690749ca5e27a7f7cf52c8ac49c884c53a1e27a4f9650c9c1bdcdc13cf14248a248275030bab89c327974ae32c66ee32193d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver6A2.tmp

Filesize
15KB

MD5
1a545d0052b581fbb2ab4c52133846bc

SHA1
62f3266a9b9925cd6d98658b92adec673cbe3dd3

SHA256
557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

SHA512
bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\PGH3GSHW\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
65KB

MD5
a9ea94ee4a3bb43d4057823b2072dc54

SHA1
94ade3c34ec08613daba8a1240586c24f8169794

SHA256
7edbb67a880d90e53ec7949c4907f4ccf5596899b98ed8651b01a485a7b06789

SHA512
0ae24a452c474a0b67eb17ceb78eabc46aad7f04a249d526cbd1bf25ccc94016133ee6cdd1cf342fa3c8dbff60372d18df56137a6c0303bbaee07f005f930ab5

Download Submit
memory/1144-16-0x00000000010D0000-0x00000000010D1000-memory.dmp

Filesize
4KB

Download
memory/1144-17-0x00000000010B0000-0x00000000010B1000-memory.dmp

Filesize
4KB

Download
memory/2032-19-0x0000000077752000-0x0000000077753000-memory.dmp

Filesize
4KB

Download
memory/2032-18-0x00000000006E0000-0x00000000006E1000-memory.dmp

Filesize
4KB

Download
memory/2032-22-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2032-24-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2032-14-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2032-13-0x00000000005C0000-0x00000000005C1000-memory.dmp

Filesize
4KB

Download
memory/2032-12-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2676-5-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2676-6-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3240-0-0x0000000005000000-0x00000000050BA000-memory.dmp

Filesize
744KB

Download