ramnit | 2d389c6fe029535997da4ec7ce02d14b186a950989c820cde9dee24e52a3b5f6

General

Target

2d389c6fe029535997da4ec7ce02d14b186a950989c820cde9dee24e52a3b5f6.dll
Size

244KB
MD5

0a27157f7ce430d37d28a5a2ad1f9490
SHA1

c7c152af179888e0fc30281d4ad5c0294fbd81a1
SHA256

2d389c6fe029535997da4ec7ce02d14b186a950989c820cde9dee24e52a3b5f6
SHA512

c5ffd73a175da635d82474bcf0d7f068884184c09ff291f99569f400bcc450cc54de214c183cdf21d57129fe2189efa89a00264993d1793b784e41b271191075
SSDEEP

3072:Tk0OLbDMvWN3OhSXI4OAhYPZ57J6vu0WTMsF5dThovLcHjHNNVrdUpQ3B4njnUof:A0Nv7+IAupnHQLwZNVrT3w4z

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
5072	rundll32Srv.exe
4568	DesktopLayer.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0009000000022e23-134.dat	upx
behavioral2/files/0x0009000000022e23-135.dat	upx
behavioral2/memory/5072-137-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x0008000000022e28-140.dat	upx
behavioral2/files/0x0008000000022e28-141.dat	upx
behavioral2/memory/4568-142-0x0000000000400000-0x000000000042E000-memory.dmp	upx

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\px8DBE.tmp	rundll32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3996	4816	WerFault.exe	80

Modifies Internet Explorer settings 1 TTPs 23 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{56A02199-6995-11ED-B696-DAE60F07E07D} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "725647747"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30997922"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30997922"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "741117148"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "725647747"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "375194446"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30997922"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4568	DesktopLayer.exe
4568	DesktopLayer.exe
4568	DesktopLayer.exe
4568	DesktopLayer.exe
4568	DesktopLayer.exe
4568	DesktopLayer.exe
4568	DesktopLayer.exe
4568	DesktopLayer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4104	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4104	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4104	iexplore.exe
4104	iexplore.exe
4680	IEXPLORE.EXE
4680	IEXPLORE.EXE
4680	IEXPLORE.EXE
4680	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1112 wrote to memory of 4816	1112	rundll32.exe	80
PID 1112 wrote to memory of 4816	1112	rundll32.exe	80
PID 1112 wrote to memory of 4816	1112	rundll32.exe	80
PID 4816 wrote to memory of 5072	4816	rundll32.exe	81
PID 4816 wrote to memory of 5072	4816	rundll32.exe	81
PID 4816 wrote to memory of 5072	4816	rundll32.exe	81
PID 5072 wrote to memory of 4568	5072	rundll32Srv.exe	82
PID 5072 wrote to memory of 4568	5072	rundll32Srv.exe	82
PID 5072 wrote to memory of 4568	5072	rundll32Srv.exe	82
PID 4568 wrote to memory of 4104	4568	DesktopLayer.exe	84
PID 4568 wrote to memory of 4104	4568	DesktopLayer.exe	84
PID 4104 wrote to memory of 4680	4104	iexplore.exe	86
PID 4104 wrote to memory of 4680	4104	iexplore.exe	86
PID 4104 wrote to memory of 4680	4104	iexplore.exe	86

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2d389c6fe029535997da4ec7ce02d14b186a950989c820cde9dee24e52a3b5f6.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1112
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\2d389c6fe029535997da4ec7ce02d14b186a950989c820cde9dee24e52a3b5f6.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:4816
- - C:\Windows\SysWOW64\rundll32Srv.exe
    C:\Windows\SysWOW64\rundll32Srv.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - Suspicious use of WriteProcessMemory
    PID:5072
  - - 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:4568
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        Suspicious behavior: GetForegroundWindowSpam
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:4104
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4104 CREDAT:17410 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4680
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4816 -s 608
    3⤵
    - Program crash
    PID:3996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4816 -ip 4816
1⤵
PID:1252

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\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
6df395096ecd4495391458b01010ecb2

SHA1
2f1dc39b55265fd6219172e40362c1240506470a

SHA256
6439a7a722864b1920d0307e0fb2eb95207b22010005086b5856646a51f2a7e0

SHA512
eb333fbf74de85ca8bb66dc1c286f71d744e929e614bd056b73fa5161f26e89ef5028d4f729f02de3438ef519bc74968cb0c25428a880efe523121182bb65803

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

Filesize
434B

MD5
2207769cdc82412352f96f80e4978f51

SHA1
9a155a3994fa11d3df53835fd08f1d635463b57c

SHA256
c425f43cca30f17d76ca9a8974350d74b60899dac550ff1183db2a89e26cf005

SHA512
6364ca0deef755edb320c21baaf1ec9a684e454789770335d51eaae4f7f06b4496a0bce87140550f5d8ad76e95ea8cc89e98e4741b673376fdd33fca85e9a148

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
memory/4568-142-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4816-136-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/4816-143-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/5072-137-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/5072-138-0x0000000000470000-0x000000000047F000-memory.dmp

Filesize
60KB

Download

Analysis

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