ramnit | 0b28343d6d10f4a4abf54d77ffd39208706b6593300afdd80c684460ca5f29c8

General

Target

0b28343d6d10f4a4abf54d77ffd39208706b6593300afdd80c684460ca5f29c8.dll
Size

291KB
MD5

37c158bb1072a99377e004f1bb85a130
SHA1

50f35924e9318a48dadad4db192ab38ed18602e8
SHA256

0b28343d6d10f4a4abf54d77ffd39208706b6593300afdd80c684460ca5f29c8
SHA512

d7a1648e2bcce02bd7c553d54fe2b8a4a8bba72e2bb01a8db7a0fd0848e87bfccee7a2b1355521e9a479ad744ae2e489b2fa471b796e660dfcef11b37fb3c784
SSDEEP

6144:ShoO42fJNxCikdQ9lPzRv2ml/fU1HDNpfkvHYTcPwwVAVUamf+:QfJNxx9lPlv2ml/fUJuHlhGUam2

Score

10^/10

ramnit banker 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

Executes dropped EXE 2 IoCs

pid	Process
1588	regsvr32Srv.exe
592	DesktopLayer.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0007000000005c50-57.dat	upx
behavioral1/files/0x0007000000005c50-59.dat	upx
behavioral1/files/0x0007000000005c50-61.dat	upx
behavioral1/files/0x00090000000142a6-62.dat	upx
behavioral1/memory/1588-65-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x00090000000142a6-67.dat	upx
behavioral1/files/0x00090000000142a6-64.dat	upx
behavioral1/memory/592-68-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
1400	regsvr32.exe
1588	regsvr32Srv.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\regsvr32Srv.exe	regsvr32.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px7DD8.tmp	regsvr32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	regsvr32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	regsvr32Srv.exe

Modifies Internet Explorer settings 1 TTPs 28 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "375798151"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{BDADFAA1-6996-11ED-AF38-FE72C9E2D9C9} = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\MediaFoundation\Transforms\Categories\d6c02d4b-6833-45b4-971a-05a4b04bab91\059a5bae-5d7a-4c5e-8f7a-bfd57d1d6aaa	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{059A5BAE-5D7A-4C5E-8F7A-BFD57D1D6AAA}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{059A5BAE-5D7A-4C5E-8F7A-BFD57D1D6AAA}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{059A5BAE-5D7A-4C5E-8F7A-BFD57D1D6AAA}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\0b28343d6d10f4a4abf54d77ffd39208706b6593300afdd80c684460ca5f29c8.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\MediaFoundation\Transforms\059a5bae-5d7a-4c5e-8f7a-bfd57d1d6aaa\ = "Intel® Hardware VC-1 Decoder MFT"	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\MediaFoundation\Transforms\059a5bae-5d7a-4c5e-8f7a-bfd57d1d6aaa\InputTypes = 7669647300001000800000aa00389b715188e559b2021c43a37fe55d98eb09727669647300001000800000aa00389b71f1047fe7cfd2d342bd8fe7fe6319c26a7669647300001000800000aa00389b715756433100001000800000aa00389b71	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\MediaFoundation\Transforms\059a5bae-5d7a-4c5e-8f7a-bfd57d1d6aaa\OutputTypes = 7669647300001000800000aa00389b714e5631326139ae42ba67ff47ccc13eed7669647300001000800000aa00389b714e56313200001000800000aa00389b717669647300001000800000aa00389b714959555600001000800000aa00389b71	regsvr32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\MediaFoundation\Transforms\059a5bae-5d7a-4c5e-8f7a-bfd57d1d6aaa\Attributes = 41464d490100000015cba788077b344a9128e64c6703c4d313000000000000000700000000000000	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{059A5BAE-5D7A-4C5E-8F7A-BFD57D1D6AAA}\ = "Intel® Hardware VC-1 Decoder MFT"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\MediaFoundation\Transforms\059a5bae-5d7a-4c5e-8f7a-bfd57d1d6aaa	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\MediaFoundation\Transforms\Categories	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\MediaFoundation\Transforms\Categories\d6c02d4b-6833-45b4-971a-05a4b04bab91	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\MediaFoundation\Transforms	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\MediaFoundation\Transforms\059a5bae-5d7a-4c5e-8f7a-bfd57d1d6aaa\MFTFlags = "36"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{059A5BAE-5D7A-4C5E-8F7A-BFD57D1D6AAA}\InprocServer32\ThreadingModel = "Both"	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
592	DesktopLayer.exe
592	DesktopLayer.exe
592	DesktopLayer.exe
592	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1772	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1772	iexplore.exe
1772	iexplore.exe
612	IEXPLORE.EXE
612	IEXPLORE.EXE
612	IEXPLORE.EXE
612	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1508 wrote to memory of 1400	1508	regsvr32.exe	26
PID 1508 wrote to memory of 1400	1508	regsvr32.exe	26
PID 1508 wrote to memory of 1400	1508	regsvr32.exe	26
PID 1508 wrote to memory of 1400	1508	regsvr32.exe	26
PID 1508 wrote to memory of 1400	1508	regsvr32.exe	26
PID 1508 wrote to memory of 1400	1508	regsvr32.exe	26
PID 1508 wrote to memory of 1400	1508	regsvr32.exe	26
PID 1400 wrote to memory of 1588	1400	regsvr32.exe	27
PID 1400 wrote to memory of 1588	1400	regsvr32.exe	27
PID 1400 wrote to memory of 1588	1400	regsvr32.exe	27
PID 1400 wrote to memory of 1588	1400	regsvr32.exe	27
PID 1588 wrote to memory of 592	1588	regsvr32Srv.exe	28
PID 1588 wrote to memory of 592	1588	regsvr32Srv.exe	28
PID 1588 wrote to memory of 592	1588	regsvr32Srv.exe	28
PID 1588 wrote to memory of 592	1588	regsvr32Srv.exe	28
PID 592 wrote to memory of 1772	592	DesktopLayer.exe	29
PID 592 wrote to memory of 1772	592	DesktopLayer.exe	29
PID 592 wrote to memory of 1772	592	DesktopLayer.exe	29
PID 592 wrote to memory of 1772	592	DesktopLayer.exe	29
PID 1772 wrote to memory of 612	1772	iexplore.exe	31
PID 1772 wrote to memory of 612	1772	iexplore.exe	31
PID 1772 wrote to memory of 612	1772	iexplore.exe	31
PID 1772 wrote to memory of 612	1772	iexplore.exe	31

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\0b28343d6d10f4a4abf54d77ffd39208706b6593300afdd80c684460ca5f29c8.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1508
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\0b28343d6d10f4a4abf54d77ffd39208706b6593300afdd80c684460ca5f29c8.dll
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1400
- - C:\Windows\SysWOW64\regsvr32Srv.exe
    C:\Windows\SysWOW64\regsvr32Srv.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Drops file in Program Files directory
    - Suspicious use of WriteProcessMemory
    PID:1588
  - - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
      "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:592
    - - 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:1772
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1772 CREDAT:275457 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:612

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Microsoft\DesktopLayer.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Program Files (x86)\Microsoft\DesktopLayer.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\WNION6FZ.txt

Filesize
606B

MD5
66cf015243438f65512ae8713ba6d2e6

SHA1
ab8f308bae6de2f11c59e5bfb9358db45989e052

SHA256
f95d7a407c8ac76cb330be8fa05523857fe80f6c1f593131db6d0ab90f3afbb7

SHA512
a552194cb56efd395f42b9a22837921b190e82f1cc17d3ca34f99be22ef1566af26b3fa9a325c4e9971eb04dd3bdadb01bcf70097731df3ab3aad75a353ed055

Download Submit
C:\Windows\SysWOW64\regsvr32Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Windows\SysWOW64\regsvr32Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
\Program Files (x86)\Microsoft\DesktopLayer.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
\Windows\SysWOW64\regsvr32Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/592-68-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1400-56-0x0000000075451000-0x0000000075453000-memory.dmp

Filesize
8KB

Download
memory/1508-54-0x000007FEFBAB1000-0x000007FEFBAB3000-memory.dmp

Filesize
8KB

Download
memory/1588-65-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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