ramnit | 284f6ef688efd110b7e0177b6a148ecc8afdbf559d32bbfb02fbe8501aa0cdfb

General

Target

284f6ef688efd110b7e0177b6a148ecc8afdbf559d32bbfb02fbe8501aa0cdfb.dll
Size

472KB
MD5

2ec446d11b50223d983bb7630ce08c70
SHA1

7db93176cb8fcff8339cdaa56625bcd77e9d9682
SHA256

284f6ef688efd110b7e0177b6a148ecc8afdbf559d32bbfb02fbe8501aa0cdfb
SHA512

b4007611312e8aaa92fb7c7239f76574abb31681b11dc5fb0205abb7f930b31467b0271e55953415f37a44d873c05d19cd29aff52ce48711cbcfa4f27abd6bcf
SSDEEP

12288:sehnaNPpSVZmNxRCwnwm3W3OHIIf5U+K8vW:seh0PpS6NxNnwYeOHX5BW

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
4316	rundll32mgr.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4316-136-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/4316-137-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/4316-138-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/4316-139-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/4316-140-0x0000000000400000-0x000000000041A000-memory.dmp	upx

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
4844	4956	WerFault.exe	82

Modifies Internet Explorer settings 1 TTPs 25 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1369370769"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1369370769"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30997922"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "375797604"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30997922"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{7CF03FE0-6995-11ED-89AC-C2DBB15B3A76} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4316	rundll32mgr.exe
4316	rundll32mgr.exe
4316	rundll32mgr.exe
4316	rundll32mgr.exe
4316	rundll32mgr.exe
4316	rundll32mgr.exe
4316	rundll32mgr.exe
4316	rundll32mgr.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4892	iexplore.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4316	rundll32mgr.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4892	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4892	iexplore.exe
4892	iexplore.exe
4568	IEXPLORE.EXE
4568	IEXPLORE.EXE
4568	IEXPLORE.EXE
4568	IEXPLORE.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
4316	rundll32mgr.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4904 wrote to memory of 4956	4904	rundll32.exe	82
PID 4904 wrote to memory of 4956	4904	rundll32.exe	82
PID 4904 wrote to memory of 4956	4904	rundll32.exe	82
PID 4956 wrote to memory of 4316	4956	rundll32.exe	83
PID 4956 wrote to memory of 4316	4956	rundll32.exe	83
PID 4956 wrote to memory of 4316	4956	rundll32.exe	83
PID 4316 wrote to memory of 4892	4316	rundll32mgr.exe	85
PID 4316 wrote to memory of 4892	4316	rundll32mgr.exe	85
PID 4892 wrote to memory of 4568	4892	iexplore.exe	87
PID 4892 wrote to memory of 4568	4892	iexplore.exe	87
PID 4892 wrote to memory of 4568	4892	iexplore.exe	87

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\284f6ef688efd110b7e0177b6a148ecc8afdbf559d32bbfb02fbe8501aa0cdfb.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4904
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\284f6ef688efd110b7e0177b6a148ecc8afdbf559d32bbfb02fbe8501aa0cdfb.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:4956
- - 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:4316
  - - C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      4⤵
      Modifies Internet Explorer settings
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of FindShellTrayWindow
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:4892
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4892 CREDAT:17410 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4568
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4956 -s 608
    3⤵
    - Program crash
    PID:4844

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4956 -ip 4956
1⤵
PID:4936

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

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
87KB

MD5
58da7ff3c598b41bbe4cb76d5666aaa8

SHA1
e0b965f7a4e4bbeede3d1d4a82beab1209b2f2f6

SHA256
885c8e15532b46d2203b50c67f593288968be6d5f7c79e19b637e0129a1f5987

SHA512
c05ead242fe60c4aea4a034748edc2329cc31ebcad7b9895d1d0cc8a01e2891d40cfd2adda733780c5ecec0abbad71d5a30e55659752ee7199dadc3332cf027b

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

Filesize
87KB

MD5
58da7ff3c598b41bbe4cb76d5666aaa8

SHA1
e0b965f7a4e4bbeede3d1d4a82beab1209b2f2f6

SHA256
885c8e15532b46d2203b50c67f593288968be6d5f7c79e19b637e0129a1f5987

SHA512
c05ead242fe60c4aea4a034748edc2329cc31ebcad7b9895d1d0cc8a01e2891d40cfd2adda733780c5ecec0abbad71d5a30e55659752ee7199dadc3332cf027b

Download Submit
memory/4316-136-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/4316-137-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/4316-138-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/4316-139-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/4316-140-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/4956-141-0x0000000010000000-0x0000000010078000-memory.dmp

Filesize
480KB

Download

Analysis

Sharing