ramnit | 3a043b1d00492e8f02aaaf1e96689229705540b244ca17298e2c36dfee02c56a

Analysis

max time kernel
95s
max time network
114s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-11-2024 21:00

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General

Target

3a043b1d00492e8f02aaaf1e96689229705540b244ca17298e2c36dfee02c56a.dll
Size

532KB
MD5

a09612a1db6eafcd0ebc0ca8fd0ff39a
SHA1

3d091849229378a8a2249aaddcd2d2f5f7ca76ba
SHA256

3a043b1d00492e8f02aaaf1e96689229705540b244ca17298e2c36dfee02c56a
SHA512

bf9d185ca5580a891e61db117d951fbbc689c0d5303a7f23cf743962a1ff94e32b33c1ca998e2b09598672b76cc9ee5cf520f935d8dbc498f4e6a50ba7965657
SSDEEP

6144:GGWBzraceAqVUDZx+jFtE1k7F7JnIXaIhb3vZzLHM7FzRnBWf9/ZfF/f:G1BnKAqVc7+jFfBJIXVR07FzRS9/f

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
2544	rundll32Srv.exe
2168	DesktopLayer.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2544-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x000c000000023b0b-3.dat	upx
behavioral2/memory/2544-8-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/2168-16-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/2168-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/2168-13-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px7F42.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
2204	3372	WerFault.exe	84

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	IEXPLORE.EXE
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

Modifies Internet Explorer settings 1 TTPs 32 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1249563566"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31144847"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31144847"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{74AE0A11-A782-11EF-B319-C67090DD1599} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "438901397"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1253157598"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1253157598"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1249563566"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31144847"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31144847"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2168	DesktopLayer.exe
2168	DesktopLayer.exe
2168	DesktopLayer.exe
2168	DesktopLayer.exe
2168	DesktopLayer.exe
2168	DesktopLayer.exe
2168	DesktopLayer.exe
2168	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1468	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1468	iexplore.exe
1468	iexplore.exe
2144	IEXPLORE.EXE
2144	IEXPLORE.EXE
2144	IEXPLORE.EXE
2144	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3744 wrote to memory of 3372	3744	rundll32.exe	84
PID 3744 wrote to memory of 3372	3744	rundll32.exe	84
PID 3744 wrote to memory of 3372	3744	rundll32.exe	84
PID 3372 wrote to memory of 2544	3372	rundll32.exe	85
PID 3372 wrote to memory of 2544	3372	rundll32.exe	85
PID 3372 wrote to memory of 2544	3372	rundll32.exe	85
PID 2544 wrote to memory of 2168	2544	rundll32Srv.exe	87
PID 2544 wrote to memory of 2168	2544	rundll32Srv.exe	87
PID 2544 wrote to memory of 2168	2544	rundll32Srv.exe	87
PID 2168 wrote to memory of 1468	2168	DesktopLayer.exe	88
PID 2168 wrote to memory of 1468	2168	DesktopLayer.exe	88
PID 1468 wrote to memory of 2144	1468	iexplore.exe	91
PID 1468 wrote to memory of 2144	1468	iexplore.exe	91
PID 1468 wrote to memory of 2144	1468	iexplore.exe	91

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3a043b1d00492e8f02aaaf1e96689229705540b244ca17298e2c36dfee02c56a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3744
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\3a043b1d00492e8f02aaaf1e96689229705540b244ca17298e2c36dfee02c56a.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3372
- - 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:2544
  - - 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:2168
    - - 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:1468
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1468 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:2144
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3372 -s 624
    3⤵
    - Program crash
    PID:2204

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3372 -ip 3372
1⤵
PID:4636

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
5cdba0b951b215a32f9053da8eed5d75

SHA1
5bcaf283c5b7a740bc804a393298d6cf4f0ba4c7

SHA256
5db4ebeed80b2c5b5e17e1f7ddc01139ee151ff2b398250393d8d30d3bbf1118

SHA512
7471c506a63bc00edb959edc7b74b42af565c99297252348a6edd5ef1036ad7885f2ee3d5fad141400a549741980fe8f08c9a00a743bd696913e536d76c91d10

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

Filesize
404B

MD5
a5f6c026e4d2c4771c14b99ea4a65112

SHA1
2882b5ab8396fb28b1d40cf04ed63bb10b5fbc79

SHA256
f64f92bdd228e86695773a6c0db1de8d2fbd8285bb72be061cbb1215db31b33f

SHA512
5c88c6e82f355666a112bc101301bf6234319acce8a50a8ee38c8e5833cd744a514ede2a64434dc0a0c47ce21c19807698ee7a97f84f1b7db1f8fdcc3f083568

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verA7.tmp

Filesize
15KB

MD5
1a545d0052b581fbb2ab4c52133846bc

SHA1
62f3266a9b9925cd6d98658b92adec673cbe3dd3

SHA256
557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

SHA512
bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\8R55UT9S\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/2168-16-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2168-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2168-14-0x0000000001F50000-0x0000000001F51000-memory.dmp

Filesize
4KB

Download
memory/2168-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2544-5-0x0000000000660000-0x000000000066F000-memory.dmp

Filesize
60KB

Download
memory/2544-8-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2544-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3372-18-0x0000000010000000-0x0000000010088000-memory.dmp

Filesize
544KB

Download
memory/3372-0-0x0000000010000000-0x0000000010088000-memory.dmp

Filesize
544KB

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