ramnit | 6f7d52fb946934638e916235df4eac7985734daf50b9683864f0c848ecbfc341

General

Target

6f7d52fb946934638e916235df4eac7985734daf50b9683864f0c848ecbfc341.dll
Size

143KB
MD5

0ca9634118f87542c91e9ba54aac4720
SHA1

6f665e1c0629eded529375f25a6b9ce2bffd7534
SHA256

6f7d52fb946934638e916235df4eac7985734daf50b9683864f0c848ecbfc341
SHA512

bb09fe25e4ce6038c56e02e1b1d97f3dcaec8ba77a611732c1f6c06c0212beb4d01e0f3fce31bc5e04bc8390df4d0649b516f49b0a60b4b7b33a2254e17e7caa
SSDEEP

3072:2HDp7pRuKjsir5HZFQGrsUwF7hplPoutjgNMv+St8kruH81iw95rmkKTs:wRR5rhZFQGrsUwF7vlPoSMM7t8kruc1g

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
1496	rundll32Srv.exe
2044	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/0x0008000000015c41-61.dat	upx
behavioral1/files/0x0008000000015c41-64.dat	upx
behavioral1/memory/1496-63-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x0008000000015c41-66.dat	upx
behavioral1/memory/2044-67-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/656-68-0x0000000010000000-0x000000001004D000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
656	rundll32.exe
1496	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 created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\pxE25.tmp	rundll32Srv.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
888	656	WerFault.exe	27

Modifies Internet Explorer settings 1 TTPs 28 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
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\Recovery\AdminActive\{11E361F1-5E5C-11ED-8803-52E8C5FCC7C7} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	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
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "374563503"	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\LowRegistry\DontShowMeThisDialogAgain	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
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\Toolbar	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\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	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\DomainSuggestion\FileNames	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\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	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
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
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2044	DesktopLayer.exe
2044	DesktopLayer.exe
2044	DesktopLayer.exe
2044	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1916	iexplore.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
656	rundll32.exe
1916	iexplore.exe
1916	iexplore.exe
1180	IEXPLORE.EXE
1180	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 812 wrote to memory of 656	812	rundll32.exe	27
PID 812 wrote to memory of 656	812	rundll32.exe	27
PID 812 wrote to memory of 656	812	rundll32.exe	27
PID 812 wrote to memory of 656	812	rundll32.exe	27
PID 812 wrote to memory of 656	812	rundll32.exe	27
PID 812 wrote to memory of 656	812	rundll32.exe	27
PID 812 wrote to memory of 656	812	rundll32.exe	27
PID 656 wrote to memory of 1496	656	rundll32.exe	28
PID 656 wrote to memory of 1496	656	rundll32.exe	28
PID 656 wrote to memory of 1496	656	rundll32.exe	28
PID 656 wrote to memory of 1496	656	rundll32.exe	28
PID 1496 wrote to memory of 2044	1496	rundll32Srv.exe	29
PID 1496 wrote to memory of 2044	1496	rundll32Srv.exe	29
PID 1496 wrote to memory of 2044	1496	rundll32Srv.exe	29
PID 1496 wrote to memory of 2044	1496	rundll32Srv.exe	29
PID 2044 wrote to memory of 1916	2044	DesktopLayer.exe	30
PID 2044 wrote to memory of 1916	2044	DesktopLayer.exe	30
PID 2044 wrote to memory of 1916	2044	DesktopLayer.exe	30
PID 2044 wrote to memory of 1916	2044	DesktopLayer.exe	30
PID 1916 wrote to memory of 1180	1916	iexplore.exe	32
PID 1916 wrote to memory of 1180	1916	iexplore.exe	32
PID 1916 wrote to memory of 1180	1916	iexplore.exe	32
PID 1916 wrote to memory of 1180	1916	iexplore.exe	32
PID 656 wrote to memory of 888	656	rundll32.exe	33
PID 656 wrote to memory of 888	656	rundll32.exe	33
PID 656 wrote to memory of 888	656	rundll32.exe	33
PID 656 wrote to memory of 888	656	rundll32.exe	33

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6f7d52fb946934638e916235df4eac7985734daf50b9683864f0c848ecbfc341.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:812
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\6f7d52fb946934638e916235df4eac7985734daf50b9683864f0c848ecbfc341.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:656
- - 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:1496
  - - 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:2044
    - - 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:1916
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1916 CREDAT:275457 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1180
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 656 -s 252
    3⤵
    - Program crash
    PID:888

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\32LY68YJ.txt

Filesize
535B

MD5
999c215cfb7e3312ee3cc8b59bad9de2

SHA1
bf01a2421274bab92b5a209eb3bdc495b7f452b8

SHA256
ba90156d4edfe998f490f2d8de9fcc2931a63f784b994d5f4a3a9ba57eb4ae28

SHA512
9bb98a4e739c60d906cc7090fa7ac328d7ab3bc6cbb39fe9a5b84ff967a2abf194c536c100098f3be8f01c973a6999df6f937b17f596f8f0ac864cf795e1cd1e

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/656-54-0x0000000000000000-mapping.dmp

Download
memory/656-68-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/656-69-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/656-55-0x0000000075131000-0x0000000075133000-memory.dmp

Filesize
8KB

Download
memory/888-70-0x0000000000000000-mapping.dmp

Download
memory/1496-57-0x0000000000000000-mapping.dmp

Download
memory/1496-63-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2044-62-0x0000000000000000-mapping.dmp

Download
memory/2044-67-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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