ramnit | 13a08be7d83db2c17170b5d7865c1ab4d97f6c5b537e1138aaf54960616a0a56

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
29-12-2024 19:57

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General

Target

13a08be7d83db2c17170b5d7865c1ab4d97f6c5b537e1138aaf54960616a0a56.dll
Size

784KB
MD5

add09aa13dab5429e787ab153598979a
SHA1

3bbf653ddd3e22b3f8f0239467611fbbb201500b
SHA256

13a08be7d83db2c17170b5d7865c1ab4d97f6c5b537e1138aaf54960616a0a56
SHA512

b273f42403b9bf43a32e83a625c9d7eb1da153fe84fc9de8de43498816a7bfe80af36be95c3b9a1a456a91e0afd2a0cab10cf94795fc32ee12e2dc7b045e9090
SSDEEP

24576:9zb1MlCKUQyUmjtczu6Prs9pgWoopooK9kwPT:9zbKsUmjtcdPGgIwPT

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
3672	rundll32mgr.exe
1096	WaterMark.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3672-11-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3672-14-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3672-13-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3672-16-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3672-10-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1096-30-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3672-9-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3672-8-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1096-37-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1096-39-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1096-40-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32mgr.exe
File opened for modification	C:\Program Files (x86)\Microsoft\pxB110.tmp	rundll32mgr.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32mgr.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1020	3768	WerFault.exe	85

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	rundll32mgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WaterMark.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Modifies Internet Explorer settings 1 TTPs 33 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\DomainSuggestion	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\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "198811631"	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\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31152684"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31152684"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31152684"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "198811631"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	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\VersionManager\LastCheckForUpdateLowDateTime = "197718504"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\VersionManager	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 (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\DomainSuggestion\FileNames\	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\VersionManager\LastUpdateLowDateTime = "197718504"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31152684"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "442267259"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{374C50EB-C61F-11EF-ADF2-DA61A5E71E4E} = "0"	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 = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
1096	WaterMark.exe
1096	WaterMark.exe
1096	WaterMark.exe
1096	WaterMark.exe
1096	WaterMark.exe
1096	WaterMark.exe
1096	WaterMark.exe
1096	WaterMark.exe
1096	WaterMark.exe
1096	WaterMark.exe
1096	WaterMark.exe
1096	WaterMark.exe
1096	WaterMark.exe
1096	WaterMark.exe
1096	WaterMark.exe
1096	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1096	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3624	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3624	iexplore.exe
3624	iexplore.exe
1504	IEXPLORE.EXE
1504	IEXPLORE.EXE
1504	IEXPLORE.EXE
1504	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
3672	rundll32mgr.exe
1096	WaterMark.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 4120 wrote to memory of 4836	4120	rundll32.exe	82
PID 4120 wrote to memory of 4836	4120	rundll32.exe	82
PID 4120 wrote to memory of 4836	4120	rundll32.exe	82
PID 4836 wrote to memory of 3672	4836	rundll32.exe	83
PID 4836 wrote to memory of 3672	4836	rundll32.exe	83
PID 4836 wrote to memory of 3672	4836	rundll32.exe	83
PID 3672 wrote to memory of 1096	3672	rundll32mgr.exe	84
PID 3672 wrote to memory of 1096	3672	rundll32mgr.exe	84
PID 3672 wrote to memory of 1096	3672	rundll32mgr.exe	84
PID 1096 wrote to memory of 3768	1096	WaterMark.exe	85
PID 1096 wrote to memory of 3768	1096	WaterMark.exe	85
PID 1096 wrote to memory of 3768	1096	WaterMark.exe	85
PID 1096 wrote to memory of 3768	1096	WaterMark.exe	85
PID 1096 wrote to memory of 3768	1096	WaterMark.exe	85
PID 1096 wrote to memory of 3768	1096	WaterMark.exe	85
PID 1096 wrote to memory of 3768	1096	WaterMark.exe	85
PID 1096 wrote to memory of 3768	1096	WaterMark.exe	85
PID 1096 wrote to memory of 3768	1096	WaterMark.exe	85
PID 1096 wrote to memory of 2508	1096	WaterMark.exe	89
PID 1096 wrote to memory of 2508	1096	WaterMark.exe	89
PID 1096 wrote to memory of 3624	1096	WaterMark.exe	90
PID 1096 wrote to memory of 3624	1096	WaterMark.exe	90
PID 3624 wrote to memory of 1504	3624	iexplore.exe	91
PID 3624 wrote to memory of 1504	3624	iexplore.exe	91
PID 3624 wrote to memory of 1504	3624	iexplore.exe	91

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\13a08be7d83db2c17170b5d7865c1ab4d97f6c5b537e1138aaf54960616a0a56.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4120
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\13a08be7d83db2c17170b5d7865c1ab4d97f6c5b537e1138aaf54960616a0a56.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4836
- - 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 UnmapMainImage
    - Suspicious use of WriteProcessMemory
    PID:3672
  - - 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 UnmapMainImage
      Suspicious use of WriteProcessMemory
      PID:1096
    - - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        5⤵
        
        PID:3768
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3768 -s 208
        6⤵
        Program crash
        
        PID:1020
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        
        PID:2508
    - - 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:3624
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3624 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1504

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3768 -ip 3768
1⤵
PID:4608

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
203ddc09084e958498293f6ecef1a1e4

SHA1
df8fdc39325e88a761ef4da69509b1bd8d3ef2a6

SHA256
bcb41b57c4ce82debc1f42013cd577ba427df23c39b3e356678cb0cb1268020c

SHA512
812d76aaf43f4884c59de4d0b6f5c9ec7493dbaf621c384a046e78f3ac3c3304943127c95a0d083f752557f9636c18f743b7be8c2e0447f7d43076ad14b62fb3

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

Filesize
404B

MD5
7ecda7601b387ea72257a96331be64ce

SHA1
93d11967c0e222945519122290cf6083c966b425

SHA256
f4a1d71fb6e70981263cab0af18d51741c33e1537a9c822f9f220e6083d34961

SHA512
360138e26973c9fe58dbb8591f3c798f862f2f1258f56030bea650e26022483d636922ef40d560db3f5aef363052ebbf4b92afbef4182cdd3f4c118e7d40f0e6

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver34A7.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
125KB

MD5
efc76677438852f4362730b2613790d5

SHA1
3a2fe736cbf3ed3fba8c2d64aabf25bd5e8f0e8e

SHA256
85a3aa210c4dcb650ff9c0d5614e09fcd17b4a4d62ed96a69bdf2a4721765529

SHA512
a33fa4ccbb4fa0ce751f2135fd662206ff8c5ea56def296d261ce4f972dd8f43ad38db363ffac3794ad6ec632502dd026add3dbee3bbe029362ff428530b87e6

Download Submit
memory/1096-40-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1096-32-0x0000000077582000-0x0000000077583000-memory.dmp

Filesize
4KB

Download
memory/1096-39-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1096-38-0x0000000077582000-0x0000000077583000-memory.dmp

Filesize
4KB

Download
memory/1096-36-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/1096-30-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1096-31-0x0000000000430000-0x0000000000431000-memory.dmp

Filesize
4KB

Download
memory/1096-37-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3672-16-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3672-13-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3672-8-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3672-12-0x0000000002860000-0x0000000002861000-memory.dmp

Filesize
4KB

Download
memory/3672-4-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/3672-6-0x0000000000401000-0x0000000000404000-memory.dmp

Filesize
12KB

Download
memory/3672-9-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3672-22-0x0000000000401000-0x0000000000404000-memory.dmp

Filesize
12KB

Download
memory/3672-10-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3672-11-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3672-7-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/3672-14-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3768-35-0x0000000000D10000-0x0000000000D11000-memory.dmp

Filesize
4KB

Download
memory/3768-34-0x0000000000D30000-0x0000000000D31000-memory.dmp

Filesize
4KB

Download
memory/4836-0-0x0000000005000000-0x00000000050C9000-memory.dmp

Filesize
804KB

Download