ramnit | c1b09697062a271270f23287ee6309a51d771c4d5462bab20c5207cdb8ceaf48

Analysis

max time kernel
135s
max time network
166s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
01/05/2024, 15:18

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General

Target

$PLUGINSDIR/xml.dll
Size

175KB
MD5

0ad70d0ebf9562e53f2fd9518c3b04a3
SHA1

4de4487e4d1e87b782eceb3b74d9510cc28b0c70
SHA256

3bd4a099f0e0eefeaacfdba6c0ab760b6e9250167ba6a30eafaa668ca53ce5e9
SHA512

f75e089f7eb44071f227cd9705b8e44982429f889f93230e98095aac60afc1bdd39a010787235c171cd9fb9ead8023043b147022ab007e8cf1c3204064905719
SSDEEP

3072:vzjLkarn7O+n9z2L6whFtGF42bKgGoqVvbaNXubJ1JI:vzP7n7O7L6K2lqVvWIdjI

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
696	rundll32Srv.exe
4308	DesktopLayer.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral18/files/0x000900000002324b-3.dat	upx
behavioral18/memory/696-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral18/memory/696-6-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral18/memory/4308-12-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral18/memory/4308-15-0x0000000000400000-0x000000000042E000-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\px246B.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
3132	112	WerFault.exe	92

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "4054331467"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "421341728"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4054487174"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\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-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31103962"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31103962"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{1CAF9766-07CE-11EF-B9F7-DA3E94F6CD86} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31103962"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4293237344"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4308	DesktopLayer.exe
4308	DesktopLayer.exe
4308	DesktopLayer.exe
4308	DesktopLayer.exe
4308	DesktopLayer.exe
4308	DesktopLayer.exe
4308	DesktopLayer.exe
4308	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4812	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4812	iexplore.exe
4812	iexplore.exe
5116	IEXPLORE.EXE
5116	IEXPLORE.EXE
5116	IEXPLORE.EXE
5116	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4768 wrote to memory of 112	4768	rundll32.exe	92
PID 4768 wrote to memory of 112	4768	rundll32.exe	92
PID 4768 wrote to memory of 112	4768	rundll32.exe	92
PID 112 wrote to memory of 696	112	rundll32.exe	93
PID 112 wrote to memory of 696	112	rundll32.exe	93
PID 112 wrote to memory of 696	112	rundll32.exe	93
PID 696 wrote to memory of 4308	696	rundll32Srv.exe	96
PID 696 wrote to memory of 4308	696	rundll32Srv.exe	96
PID 696 wrote to memory of 4308	696	rundll32Srv.exe	96
PID 4308 wrote to memory of 4812	4308	DesktopLayer.exe	97
PID 4308 wrote to memory of 4812	4308	DesktopLayer.exe	97
PID 4812 wrote to memory of 5116	4812	iexplore.exe	98
PID 4812 wrote to memory of 5116	4812	iexplore.exe	98
PID 4812 wrote to memory of 5116	4812	iexplore.exe	98

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\xml.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4768
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\xml.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:112
- - 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:696
  - - 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:4308
    - - 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:4812
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4812 CREDAT:17410 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:5116
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 112 -s 608
    3⤵
    - Program crash
    PID:3132

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 112 -ip 112
1⤵
PID:2768

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3676 --field-trial-handle=2276,i,11674642242468042059,14711253743544118298,262144 --variations-seed-version /prefetch:8
1⤵
PID:4836

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

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
7dcd658f7257514c95d9237ee57e25f4

SHA1
c762ec9bfb992bd77de5ca6cf5d8f3b605994c31

SHA256
1da58724f00f0235958c6f7d7f78e1ddf7b9ff7592c9cc1e113c50c3948e19e9

SHA512
7eeb5eae72e3831235557054747b117b025c08304ab7c0ecfe7f20cb7a29757bfbcd3f099333ef434808a143cefd36241ec4dd3b605b1b27e800aba119fb3614

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

Filesize
404B

MD5
e5e5656d1e214ff8e7cb5a7f02338e48

SHA1
a11ba0d6bc4b93688e45af24c0a3f9af3ee2e426

SHA256
739833e4e4fdc82715f090a96c5bcbe370d58b8336f97adbd9745ffd8bee658c

SHA512
a8002925ff074ed46a8c9572e7bf4a045475efd5cc2ed9ce092d04e5df3e27f4c16baf39dee70107f7ebb475d113580e4e6e8d96bd5b997792fa7fc96d5f7f82

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\8ZO46T3J\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Windows\SysWOW64\rundll32Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/112-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/112-17-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/696-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/696-5-0x0000000000440000-0x000000000044F000-memory.dmp

Filesize
60KB

Download
memory/696-6-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4308-12-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4308-13-0x00000000005A0000-0x00000000005A1000-memory.dmp

Filesize
4KB

Download
memory/4308-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download