ramnit | 2583c3776f961b4c716fdb41929f1f1bbafa65372fd27d74570a4bfae8ea7640

General

Target

2583c3776f961b4c716fdb41929f1f1bbafa65372fd27d74570a4bfae8ea7640.dll
Size

400KB
MD5

4e653c1648bd0112e2bfb8236b854490
SHA1

6995832fd0eabfed3159d670cd9284db292a5965
SHA256

2583c3776f961b4c716fdb41929f1f1bbafa65372fd27d74570a4bfae8ea7640
SHA512

1690808a84411d8c8b2ee471a7a2ff8289933ce1e82f865a989ac7c5a775aa6568add1ca673d8bcb64fab41025bb433c9514ee22827070f1aa8affc47c9982b6
SSDEEP

6144:lEANM8T3bSLZIi5W1S1i9TB6K6LB2/gwTooLrqrf:lENGbSLZI0v1i9Tcw3ef

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
1004	rundll32Srv.exe
1252	DesktopLayer.exe

UPX packed file 8 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/0x00090000000122ea-61.dat	upx
behavioral1/memory/1004-64-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x00090000000122ea-63.dat	upx
behavioral1/files/0x00090000000122ea-66.dat	upx
behavioral1/memory/1252-67-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
1960	rundll32.exe
1004	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\px1759.tmp	rundll32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2008	1960	WerFault.exe	28

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\LowRegistry\DOMStorage	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\Toolbar	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{FC459481-41C3-11ED-9AD4-7A3897842414} = "0"	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\Toolbar\WebBrowser	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\BrowserEmulation\LowMic	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
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\InternetRegistry	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\Main	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\LowRegistry	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\DomainSuggestion\FileNames\	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\DomainSuggestion\FileNames\en-US = "en-US.1"	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\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "371419564"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1252	DesktopLayer.exe
1252	DesktopLayer.exe
1252	DesktopLayer.exe
1252	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2044	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2044	iexplore.exe
2044	iexplore.exe
1392	IEXPLORE.EXE
1392	IEXPLORE.EXE
1392	IEXPLORE.EXE
1392	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1788 wrote to memory of 1960	1788	rundll32.exe	28
PID 1788 wrote to memory of 1960	1788	rundll32.exe	28
PID 1788 wrote to memory of 1960	1788	rundll32.exe	28
PID 1788 wrote to memory of 1960	1788	rundll32.exe	28
PID 1788 wrote to memory of 1960	1788	rundll32.exe	28
PID 1788 wrote to memory of 1960	1788	rundll32.exe	28
PID 1788 wrote to memory of 1960	1788	rundll32.exe	28
PID 1960 wrote to memory of 1004	1960	rundll32.exe	29
PID 1960 wrote to memory of 1004	1960	rundll32.exe	29
PID 1960 wrote to memory of 1004	1960	rundll32.exe	29
PID 1960 wrote to memory of 1004	1960	rundll32.exe	29
PID 1004 wrote to memory of 1252	1004	rundll32Srv.exe	30
PID 1004 wrote to memory of 1252	1004	rundll32Srv.exe	30
PID 1004 wrote to memory of 1252	1004	rundll32Srv.exe	30
PID 1004 wrote to memory of 1252	1004	rundll32Srv.exe	30
PID 1252 wrote to memory of 2044	1252	DesktopLayer.exe	32
PID 1252 wrote to memory of 2044	1252	DesktopLayer.exe	32
PID 1252 wrote to memory of 2044	1252	DesktopLayer.exe	32
PID 1252 wrote to memory of 2044	1252	DesktopLayer.exe	32
PID 1960 wrote to memory of 2008	1960	rundll32.exe	31
PID 1960 wrote to memory of 2008	1960	rundll32.exe	31
PID 1960 wrote to memory of 2008	1960	rundll32.exe	31
PID 1960 wrote to memory of 2008	1960	rundll32.exe	31
PID 2044 wrote to memory of 1392	2044	iexplore.exe	34
PID 2044 wrote to memory of 1392	2044	iexplore.exe	34
PID 2044 wrote to memory of 1392	2044	iexplore.exe	34
PID 2044 wrote to memory of 1392	2044	iexplore.exe	34

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2583c3776f961b4c716fdb41929f1f1bbafa65372fd27d74570a4bfae8ea7640.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1788
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\2583c3776f961b4c716fdb41929f1f1bbafa65372fd27d74570a4bfae8ea7640.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:1960
- - 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:1004
  - - 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:1252
    - - 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:2044
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2044 CREDAT:275457 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1392
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1960 -s 248
    3⤵
    - Program crash
    PID:2008

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\06MBJEHN.txt

Filesize
608B

MD5
ebcbdb65fb13e367c96b2addc993c8db

SHA1
dd7d7bcd1e9796eafcfd5dd28e58235a06a0cc8c

SHA256
5b72af6d39d9d1f2ac506ad4c8f0089c6911488ece3b541252a1fa364ab775d9

SHA512
14290d64494c65a97c5281ce59332c53c71611a32d7e168b476fa86a81b0e4d66b4c6e11641be2b565d08c3d3b5e9183f4548820f70496abcac62d59be41280a

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/1004-64-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1252-67-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1960-69-0x0000000010000000-0x0000000010067000-memory.dmp

Filesize
412KB

Download
memory/1960-70-0x0000000000180000-0x00000000001AE000-memory.dmp

Filesize
184KB

Download
memory/1960-71-0x0000000000180000-0x00000000001AE000-memory.dmp

Filesize
184KB

Download
memory/1960-55-0x0000000076321000-0x0000000076323000-memory.dmp

Filesize
8KB

Download

Analysis

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