ramnit | 614e5ed36c85c2a57cb83ea8beb9fd1503e9871deac956c95923aedf99b364bf

General

Target

614e5ed36c85c2a57cb83ea8beb9fd1503e9871deac956c95923aedf99b364bf.dll
Size

150KB
MD5

0fed5deb0f05ee541b8d078a7c8092e0
SHA1

bbd3d513dcf07c3cb0e7387e57d1eb2258b00b7e
SHA256

614e5ed36c85c2a57cb83ea8beb9fd1503e9871deac956c95923aedf99b364bf
SHA512

6fdff8a536adff3b75c34f3b74d226d1ca1da4fe231e798da723336da1b1f27302617f4895d54fa00a5adc9522165106d7637f31641150ad4c212e19e68beafd
SSDEEP

3072:47LTNzNup4hAQHnLP+VXmwxCtkniTKR98XAm4ynI8j:8LTfuCnj+VXmwxhnCe98XR1I

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
1800	rundll32Srv.exe
956	DesktopLayer.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x00140000000054ab-56.dat	upx
behavioral1/files/0x00140000000054ab-58.dat	upx
behavioral1/files/0x00140000000054ab-60.dat	upx
behavioral1/files/0x0009000000012744-61.dat	upx
behavioral1/memory/1800-63-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x0009000000012744-64.dat	upx
behavioral1/files/0x0009000000012744-66.dat	upx
behavioral1/memory/956-67-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/1108-68-0x0000000074670000-0x000000007469A000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
1108	rundll32.exe
1800	rundll32Srv.exe

Drops file in System32 directory 1 IoCs

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

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\pxFE7C.tmp	rundll32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe

Modifies Internet Explorer settings 1 TTPs 28 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{E0C7B521-5E5C-11ED-9584-C22E595EE768} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "374563856"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
956	DesktopLayer.exe
956	DesktopLayer.exe
956	DesktopLayer.exe
956	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1248	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1248	iexplore.exe
1248	iexplore.exe
896	IEXPLORE.EXE
896	IEXPLORE.EXE
896	IEXPLORE.EXE
896	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 360 wrote to memory of 1108	360	rundll32.exe	27
PID 360 wrote to memory of 1108	360	rundll32.exe	27
PID 360 wrote to memory of 1108	360	rundll32.exe	27
PID 360 wrote to memory of 1108	360	rundll32.exe	27
PID 360 wrote to memory of 1108	360	rundll32.exe	27
PID 360 wrote to memory of 1108	360	rundll32.exe	27
PID 360 wrote to memory of 1108	360	rundll32.exe	27
PID 1108 wrote to memory of 1800	1108	rundll32.exe	28
PID 1108 wrote to memory of 1800	1108	rundll32.exe	28
PID 1108 wrote to memory of 1800	1108	rundll32.exe	28
PID 1108 wrote to memory of 1800	1108	rundll32.exe	28
PID 1800 wrote to memory of 956	1800	rundll32Srv.exe	29
PID 1800 wrote to memory of 956	1800	rundll32Srv.exe	29
PID 1800 wrote to memory of 956	1800	rundll32Srv.exe	29
PID 1800 wrote to memory of 956	1800	rundll32Srv.exe	29
PID 956 wrote to memory of 1248	956	DesktopLayer.exe	30
PID 956 wrote to memory of 1248	956	DesktopLayer.exe	30
PID 956 wrote to memory of 1248	956	DesktopLayer.exe	30
PID 956 wrote to memory of 1248	956	DesktopLayer.exe	30
PID 1248 wrote to memory of 896	1248	iexplore.exe	32
PID 1248 wrote to memory of 896	1248	iexplore.exe	32
PID 1248 wrote to memory of 896	1248	iexplore.exe	32
PID 1248 wrote to memory of 896	1248	iexplore.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\614e5ed36c85c2a57cb83ea8beb9fd1503e9871deac956c95923aedf99b364bf.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:360
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\614e5ed36c85c2a57cb83ea8beb9fd1503e9871deac956c95923aedf99b364bf.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:1108
- - C:\Windows\SysWOW64\rundll32Srv.exe
    C:\Windows\SysWOW64\rundll32Srv.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Drops file in Program Files directory
    - Suspicious use of WriteProcessMemory
    PID:1800
  - - 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:956
    - - 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:1248
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1248 CREDAT:275457 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:896

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\AHIJC7F8.txt

Filesize
535B

MD5
25d9c97ca043161b989ceb672877fafe

SHA1
543f7fb515987dcadd4e04d1f0ef57a57b76f4c6

SHA256
cb853731d5fcd8576bd15a8388312a3e0128d781541e89504c27ea6c6488f929

SHA512
1e6d5ed2801418e9e6793ef755e8c3bee12ef43e29fb81f31ea35caf44d8de6a0691fe9444209a17d2851ff762663c3fb134ec4e4ed661a9d97f4156fe123c6f

Download Submit
C:\Windows\SysWOW64\rundll32Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Windows\SysWOW64\rundll32Srv.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\rundll32Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/956-67-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1108-71-0x0000000074670000-0x000000007469A000-memory.dmp

Filesize
168KB

Download
memory/1108-55-0x0000000075771000-0x0000000075773000-memory.dmp

Filesize
8KB

Download
memory/1108-69-0x0000000074640000-0x000000007466A000-memory.dmp

Filesize
168KB

Download
memory/1108-68-0x0000000074670000-0x000000007469A000-memory.dmp

Filesize
168KB

Download
memory/1108-70-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1108-72-0x0000000074670000-0x000000007469A000-memory.dmp

Filesize
168KB

Download
memory/1800-63-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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