ramnit | c2da04dbb2f03d47cbfcc4d7e4a0546e95106775f141cf000d8ddc1a2c4665d0

Analysis

max time kernel
115s
max time network
178s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
17/04/2024, 19:09

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General

Target
c2da04dbb2f03d47cbfcc4d7e4a0546e95106775f141cf000d8ddc1a2c4665d0.dll
Size 1.0MB
Sample240417-xt65pabc32
SHA256 c2da04dbb2f03d47cbfcc4d7e4a0546e95106775f141cf000d8ddc1a2c4665d0
MD5 5ca0e9ed9e37e67812fd895f6e2f720d
SHA1 f44d531bdcb09e391db8d4a5deb3ad32773274d5
SHA512 9666330ff6271a238e9e69c6c43266fef18b882c0096b8b64113c23be029352c37bcf46bbe393fd1e36b2671d624273435943771abd5d63a19815de44e05f9eb
SSDEEP 12288:PRe6fQ4blX2/t9mEU/w3QjyT3hkoMg5ctJust+JDA4GEPf3wvfd5VvaqM:PRe6fTboPqfa3hkoM5ust+JD2MwV5VB
MD5 SHA1 SHA512 SSDEEP

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
1460	rundll32Srv.exe
1668	DesktopLayer.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000016898-3.dat	upx
behavioral2/memory/1460-5-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/1460-8-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/1668-14-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/1668-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/1668-18-0x0000000000400000-0x000000000042E000-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\px4F73.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
4276	4260	WerFault.exe	89

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{1D39F1C6-FCEE-11EE-A3F9-6223ADA6AD33} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4122930836"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31101178"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "420145991"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31101178"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4054023910"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "4054023910"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31101178"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1668	DesktopLayer.exe
1668	DesktopLayer.exe
1668	DesktopLayer.exe
1668	DesktopLayer.exe
1668	DesktopLayer.exe
1668	DesktopLayer.exe
1668	DesktopLayer.exe
1668	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
432	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
432	iexplore.exe
432	iexplore.exe
756	IEXPLORE.EXE
756	IEXPLORE.EXE
756	IEXPLORE.EXE
756	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1436 wrote to memory of 4260	1436	rundll32.exe	89
PID 1436 wrote to memory of 4260	1436	rundll32.exe	89
PID 1436 wrote to memory of 4260	1436	rundll32.exe	89
PID 4260 wrote to memory of 1460	4260	rundll32.exe	91
PID 4260 wrote to memory of 1460	4260	rundll32.exe	91
PID 4260 wrote to memory of 1460	4260	rundll32.exe	91
PID 1460 wrote to memory of 1668	1460	rundll32Srv.exe	92
PID 1460 wrote to memory of 1668	1460	rundll32Srv.exe	92
PID 1460 wrote to memory of 1668	1460	rundll32Srv.exe	92
PID 1668 wrote to memory of 432	1668	DesktopLayer.exe	94
PID 1668 wrote to memory of 432	1668	DesktopLayer.exe	94
PID 432 wrote to memory of 756	432	iexplore.exe	97
PID 432 wrote to memory of 756	432	iexplore.exe	97
PID 432 wrote to memory of 756	432	iexplore.exe	97

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c2da04dbb2f03d47cbfcc4d7e4a0546e95106775f141cf000d8ddc1a2c4665d0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1436
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\c2da04dbb2f03d47cbfcc4d7e4a0546e95106775f141cf000d8ddc1a2c4665d0.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:4260
- - 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:1460
  - - 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:1668
    - - 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:432
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:432 CREDAT:17410 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:756
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4260 -s 648
    3⤵
    - Program crash
    PID:4276

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4260 -ip 4260
1⤵
PID:1432

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

suggestions[1].en-US

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\TOZYVZGO\suggestions[1].en-US
Size 17KB
SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
MD5 5a34cb996293fde2cb7a4ac89587393a
SHA1 3c96c993500690d1a77873cd62bc639b3a10653f
SHA512 e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
SSDEEP 384:K4gN8sGygaEKfWYSJUKbO7UckxtBjCdY7mO3D0C5l+piEieDSV126ry1/XSGKwG3:K4gNFXiKfWfJ1Kockxbd7mAt5Mp5ie2F
MD5 SHA1 SHA512 SSDEEP

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rundll32Srv.exe

Path C:\Windows\SysWOW64\rundll32Srv.exe
Size 55KB
SHA256 d1a57e19ddb9892e423248cc8ff0c4b1211d22e1ccad6111fcac218290f246f0
MD5 42bacbdf56184c2fa5fe6770857e2c2d
SHA1 521a63ee9ce2f615eda692c382b16fc1b1d57cac
SHA512 0ab916dd15278e51bccfd2ccedd80d942b0bddb9544cec3f73120780d4f7234ff7456530e1465caf3846616821d1b385b6ae58a5dff9ffe4d622902c24fd4b71
SSDEEP 1536:C+hzRsibKplyXTq8OGRnsPFG+RODTb7MXL5uXZnzE:5ROzoTq0+RO7IwnY
MD5 SHA1 SHA512 SSDEEP

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memory/1460-5-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/1460-8-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/1460-10-0x0000000000480000-0x000000000048F000-memory.dmp

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memory/1668-15-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/1668-16-0x0000000077882000-0x0000000077883000-memory.dmp

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memory/1668-13-0x0000000000560000-0x0000000000561000-memory.dmp

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memory/1668-17-0x0000000077882000-0x0000000077883000-memory.dmp

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memory/1668-18-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/1668-14-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/4260-1-0x00000000751E0000-0x00000000752E9000-memory.dmp

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memory/4260-19-0x00000000751E0000-0x00000000752E9000-memory.dmp

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