ramnit | be4f04a6cb1df55610f461e3e05d81daebe75cbab021746e0cbf6b05389ff02b

Analysis

max time kernel
119s
max time network
149s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
26-07-2024 05:37

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General

Target

be4f04a6cb1df55610f461e3e05d81daebe75cbab021746e0cbf6b05389ff02b.dll
Size

92KB
MD5

6ab9c7292fe2829ca577e54bef18619b
SHA1

2a6c3403c3fac73da0c848a06818daae3c722182
SHA256

be4f04a6cb1df55610f461e3e05d81daebe75cbab021746e0cbf6b05389ff02b
SHA512

6f830c9b8984f4dfc4f46c2a3ea06da1d0205f1f3a9467d5091153807f6b0874d5bf03d2039fc5778d3819465e02771ba6e3b9cd31ced9e777eaaf0d82e5259c
SSDEEP

1536:ymg4T4vONoRohd42hcGliEbPgQpZiX+XBFTmtXHVR0xDhjt:yjL8oRQNrPK+PTmV1R8h

Score

10^/10

ramnit banker discovery 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
2552	rundll32Srv.exe
2660	DesktopLayer.exe

Loads dropped DLL 2 IoCs

pid	Process
2756	rundll32.exe
2552	rundll32Srv.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0005000000010300-1.dat	upx
behavioral1/memory/2660-19-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2552-10-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2552-8-0x0000000000400000-0x000000000042E000-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\px20AA.tmp	rundll32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2564	2756	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32Srv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DesktopLayer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 28 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{1EE90691-4B11-11EF-BDB6-FE3EAF6E2A14} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "2"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "428134125"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Internet Explorer\SearchScopes	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2660	DesktopLayer.exe
2660	DesktopLayer.exe
2660	DesktopLayer.exe
2660	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2912	iexplore.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2912	iexplore.exe
2912	iexplore.exe
2496	IEXPLORE.EXE
2496	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2888 wrote to memory of 2756	2888	rundll32.exe	30
PID 2888 wrote to memory of 2756	2888	rundll32.exe	30
PID 2888 wrote to memory of 2756	2888	rundll32.exe	30
PID 2888 wrote to memory of 2756	2888	rundll32.exe	30
PID 2888 wrote to memory of 2756	2888	rundll32.exe	30
PID 2888 wrote to memory of 2756	2888	rundll32.exe	30
PID 2888 wrote to memory of 2756	2888	rundll32.exe	30
PID 2756 wrote to memory of 2552	2756	rundll32.exe	31
PID 2756 wrote to memory of 2552	2756	rundll32.exe	31
PID 2756 wrote to memory of 2552	2756	rundll32.exe	31
PID 2756 wrote to memory of 2552	2756	rundll32.exe	31
PID 2756 wrote to memory of 2564	2756	rundll32.exe	32
PID 2756 wrote to memory of 2564	2756	rundll32.exe	32
PID 2756 wrote to memory of 2564	2756	rundll32.exe	32
PID 2756 wrote to memory of 2564	2756	rundll32.exe	32
PID 2552 wrote to memory of 2660	2552	rundll32Srv.exe	33
PID 2552 wrote to memory of 2660	2552	rundll32Srv.exe	33
PID 2552 wrote to memory of 2660	2552	rundll32Srv.exe	33
PID 2552 wrote to memory of 2660	2552	rundll32Srv.exe	33
PID 2660 wrote to memory of 2912	2660	DesktopLayer.exe	34
PID 2660 wrote to memory of 2912	2660	DesktopLayer.exe	34
PID 2660 wrote to memory of 2912	2660	DesktopLayer.exe	34
PID 2660 wrote to memory of 2912	2660	DesktopLayer.exe	34
PID 2912 wrote to memory of 2496	2912	iexplore.exe	35
PID 2912 wrote to memory of 2496	2912	iexplore.exe	35
PID 2912 wrote to memory of 2496	2912	iexplore.exe	35
PID 2912 wrote to memory of 2496	2912	iexplore.exe	35

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\be4f04a6cb1df55610f461e3e05d81daebe75cbab021746e0cbf6b05389ff02b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2888
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\be4f04a6cb1df55610f461e3e05d81daebe75cbab021746e0cbf6b05389ff02b.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2756
- - C:\Windows\SysWOW64\rundll32Srv.exe
    C:\Windows\SysWOW64\rundll32Srv.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2552
  - - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
      "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:2660
    - - 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:2912
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2912 CREDAT:275457 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:2496
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2756 -s 224
    3⤵
    - Program crash
    PID:2564

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
f2ec7ae9983012efe2c7d9ab27dbc742

SHA1
a9b200a6e98985bea225dd3e0a3a6ba6616c757f

SHA256
06b399799c195b5f76e9ff88d2991a2a48d135db4b542b0cca2d1d6624210893

SHA512
4756861a9f99ca5a45db53ac681806c7ac9b97bd7d738a7b93a5f0769ff55ed9a6fcbf0701439e4ca6c6866b8f6d1bb2ebb8e8b9c940af7a23b25674b9458064

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
0f6de216dae332e773fb21cd8d05406b

SHA1
0f4c018a0355094c10180e87b6dccb7d20db55f6

SHA256
f65ff702d1cf42785ec6e299c11f319c3628ab5073f691eaa1dc2fc3769c879f

SHA512
0030feba9de705a700aa0d3a343ec10eaca863c3e5a6f886dcbe6cff88014580c9b89e54318120e89fd4abcd0b9c86a2aba1c2ff6bc3206eef1dabc8925e0e10

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
c9192f5fdfbb43969cf7e56b9f3d7db4

SHA1
d97684b465e535ef55992bd9f53cefa54aa576a7

SHA256
dd5656dcf4bb768e2c70291975d821683bef4f969da3db6b7095e70930a0642b

SHA512
5abc613a1699e445799015886630a4711fc957feb6f11dd0fda43e640673b7d22152038a14b9c7630aa948cf96e3264f2aea13df73bfe9f2a8d441d2b5d69a4b

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
1e9e54bea46bcf0c8894f19d1bd05342

SHA1
a8948d2c5fbcc58940b21fbb43e483b030455f30

SHA256
ff6520ae35854757fb0c2165132ee95dd6070ecb9c7f88f32f7b5b423937b252

SHA512
ff5a08a9f72defccd5d0545ef480c69e00d5d733fb1cf944822bc5750f039ffe8e65c3cd37b6703c05505e192978cdf9bcfb70ece12206bd453280063ce5281a

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
fccac145efcdefd20a3b77e0c3242494

SHA1
016c60cb900307d3633c7438460f36b8a907b89c

SHA256
671a13fa72c82d23074779fb86c682a9803c81e4b70736d454f7c7720d2fb9bc

SHA512
1232084f9782b6a5f9227810d7d455fcfa0d1288e6c4e46ed6598319c1a357aca7235a449b5c2105f38e141b9e2eb23690a5ce098507a51b1933c5948e78713a

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
65218554723ca93cf0f889b772153d4e

SHA1
643a539ad5f1bddb0a2648809dea0a5d9ba8acad

SHA256
3e5d0b51717a67665a6608520b172cfd516933271424b359240e30431653b9cd

SHA512
4d413d05b816ddb182fda91579fc26da346e990da4a25993a38c3baf18d2ee73d7f8dc6c06c150278d4c9e8a06309299c2f6e6609619103a8e52e13f715580e0

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
ef11771e1faa5eb2e8124cc4cd4548b4

SHA1
1e79288bb4dc1d832d45571ec1fc8e64934410ce

SHA256
3f4a99c8252723a412d64c3f353d00d5553fe997172ab6f6babade87ecacafc2

SHA512
03ec0b83e5bae99d5f54f5706a70ef05a2baf8c5ed998d471a9e57ef68659d1cf88fa490df601e195a7f962c8737e0a783283544fdde8666decd7f4cbe998098

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
e4a70e8cc5c5263f4710b0bd610f75fb

SHA1
c7899dd0015794da20bd6cc4a79b0c31fe2a09e5

SHA256
a510957db2459314103be5362c6a0aa57286cce419f7d0c499e2d6fd616c5f29

SHA512
d47824bd400dcfe14187b06d75bba83a5e0f32e1ea61fde63ae7b418bc3afaa1503382b759f7dfc74a7d70bdfc42c83e7803b1ae59298d14c17e79254ec9a32a

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab392D.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar3DB2.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
\Windows\SysWOW64\rundll32Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/2552-8-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2552-10-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2660-19-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2660-17-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/2756-448-0x0000000010000000-0x0000000010017000-memory.dmp

Filesize
92KB

Download
memory/2756-449-0x0000000000200000-0x000000000022E000-memory.dmp

Filesize
184KB

Download
memory/2756-3-0x0000000010000000-0x0000000010017000-memory.dmp

Filesize
92KB

Download
memory/2756-5-0x0000000000200000-0x000000000022E000-memory.dmp

Filesize
184KB

Download