ramnit | 5b7aea4df3e0f97fd8ba65937b715014ec4ac594ff3ee209964faca9f9bde07b

Analysis

max time kernel
104s
max time network
149s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
21/11/2022, 10:56

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General

Target

5b7aea4df3e0f97fd8ba65937b715014ec4ac594ff3ee209964faca9f9bde07b.dll
Size

548KB
MD5

154e9389001a52223d5f4eb5d6e18ea0
SHA1

536fbc4285ae302bc284fa08137b8cdb9268a946
SHA256

5b7aea4df3e0f97fd8ba65937b715014ec4ac594ff3ee209964faca9f9bde07b
SHA512

f89ebfee22473ca5e3492a1608d29972a18cd3f8004e9fb17facf9964c0218734011b48de0823f26026bce32d3a50e3ba50d877b1d313dc6391428bf9db3c35f
SSDEEP

12288:XhpUrEIZJqr1AkBWwNa5R0EYl795/amaX3QXaPKU6JyA3E4s2:X/jG01NHXaPWyA3ts2

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 1 IoCs

pid	Process
1452	rundll32mgr.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1452-62-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral1/memory/1452-61-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral1/memory/1452-60-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral1/memory/1452-63-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral1/memory/1452-65-0x0000000000400000-0x000000000041A000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
1352	rundll32.exe
1352	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32mgr.exe	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1228	1352	WerFault.exe	28

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "375796764"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "2"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{86C06491-6993-11ED-A80F-CA7A4AEEC1E8} = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\SearchScopes	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1452	rundll32mgr.exe
1452	rundll32mgr.exe
1452	rundll32mgr.exe
1452	rundll32mgr.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1452	rundll32mgr.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
592	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
592	iexplore.exe
592	iexplore.exe
964	IEXPLORE.EXE
964	IEXPLORE.EXE
964	IEXPLORE.EXE
964	IEXPLORE.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
1452	rundll32mgr.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2036 wrote to memory of 1352	2036	rundll32.exe	28
PID 2036 wrote to memory of 1352	2036	rundll32.exe	28
PID 2036 wrote to memory of 1352	2036	rundll32.exe	28
PID 2036 wrote to memory of 1352	2036	rundll32.exe	28
PID 2036 wrote to memory of 1352	2036	rundll32.exe	28
PID 2036 wrote to memory of 1352	2036	rundll32.exe	28
PID 2036 wrote to memory of 1352	2036	rundll32.exe	28
PID 1352 wrote to memory of 1452	1352	rundll32.exe	29
PID 1352 wrote to memory of 1452	1352	rundll32.exe	29
PID 1352 wrote to memory of 1452	1352	rundll32.exe	29
PID 1352 wrote to memory of 1452	1352	rundll32.exe	29
PID 1352 wrote to memory of 1228	1352	rundll32.exe	30
PID 1352 wrote to memory of 1228	1352	rundll32.exe	30
PID 1352 wrote to memory of 1228	1352	rundll32.exe	30
PID 1352 wrote to memory of 1228	1352	rundll32.exe	30
PID 1452 wrote to memory of 592	1452	rundll32mgr.exe	31
PID 1452 wrote to memory of 592	1452	rundll32mgr.exe	31
PID 1452 wrote to memory of 592	1452	rundll32mgr.exe	31
PID 1452 wrote to memory of 592	1452	rundll32mgr.exe	31
PID 592 wrote to memory of 964	592	iexplore.exe	33
PID 592 wrote to memory of 964	592	iexplore.exe	33
PID 592 wrote to memory of 964	592	iexplore.exe	33
PID 592 wrote to memory of 964	592	iexplore.exe	33

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5b7aea4df3e0f97fd8ba65937b715014ec4ac594ff3ee209964faca9f9bde07b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2036
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\5b7aea4df3e0f97fd8ba65937b715014ec4ac594ff3ee209964faca9f9bde07b.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:1352
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of UnmapMainImage
    - Suspicious use of WriteProcessMemory
    PID:1452
  - - C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of FindShellTrayWindow
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:592
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:592 CREDAT:275457 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:964
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1352 -s 236
    3⤵
    - Program crash
    PID:1228

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\AVGRZKHM.txt

Filesize
608B

MD5
c1f23dfa1c88a2be6002f6b4af6d1980

SHA1
9801d15460d68a65fd1d3d91530b806c7793fa95

SHA256
4c768720f513d0f80846880a8b9977ce245f9221653460524c6ecba495388da6

SHA512
f2a84477ee4b7a449f32b5aa6c0d5b9b1f50cd7e889bbfe53eed3288f34b0ad90cd5098dbfbe892b14c4ba2fe55403346646b8ee8d564de5fde4ab1e11e43cfe

Download Submit
C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
87KB

MD5
58da7ff3c598b41bbe4cb76d5666aaa8

SHA1
e0b965f7a4e4bbeede3d1d4a82beab1209b2f2f6

SHA256
885c8e15532b46d2203b50c67f593288968be6d5f7c79e19b637e0129a1f5987

SHA512
c05ead242fe60c4aea4a034748edc2329cc31ebcad7b9895d1d0cc8a01e2891d40cfd2adda733780c5ecec0abbad71d5a30e55659752ee7199dadc3332cf027b

Download Submit
\Windows\SysWOW64\rundll32mgr.exe

Filesize
87KB

MD5
58da7ff3c598b41bbe4cb76d5666aaa8

SHA1
e0b965f7a4e4bbeede3d1d4a82beab1209b2f2f6

SHA256
885c8e15532b46d2203b50c67f593288968be6d5f7c79e19b637e0129a1f5987

SHA512
c05ead242fe60c4aea4a034748edc2329cc31ebcad7b9895d1d0cc8a01e2891d40cfd2adda733780c5ecec0abbad71d5a30e55659752ee7199dadc3332cf027b

Download Submit
\Windows\SysWOW64\rundll32mgr.exe

Filesize
87KB

MD5
58da7ff3c598b41bbe4cb76d5666aaa8

SHA1
e0b965f7a4e4bbeede3d1d4a82beab1209b2f2f6

SHA256
885c8e15532b46d2203b50c67f593288968be6d5f7c79e19b637e0129a1f5987

SHA512
c05ead242fe60c4aea4a034748edc2329cc31ebcad7b9895d1d0cc8a01e2891d40cfd2adda733780c5ecec0abbad71d5a30e55659752ee7199dadc3332cf027b

Download Submit
memory/1352-55-0x00000000760B1000-0x00000000760B3000-memory.dmp

Filesize
8KB

Download
memory/1352-67-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/1352-66-0x0000000010000000-0x000000001008A000-memory.dmp

Filesize
552KB

Download
memory/1452-62-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/1452-65-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/1452-63-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/1452-60-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/1452-61-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download