ramnit | 51f894fa0cfc6ff2b5eef226d676c108bf1e22380da8ba6bbdefbd1b1f65efe8

Analysis

max time kernel
91s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25-11-2024 16:09

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General

Target

2024-11-25_dc1ee6a07a4f65ebf43b9d8d5e3c307b_avoslocker_luca-stealer_ramnit.exe
Size

2.4MB
MD5

dc1ee6a07a4f65ebf43b9d8d5e3c307b
SHA1

0928441e4f6b7bc2778c7cdf4cd2e547a9f285de
SHA256

51f894fa0cfc6ff2b5eef226d676c108bf1e22380da8ba6bbdefbd1b1f65efe8
SHA512

4e87db44efad77e1c618ccbbc85e963da3dfe587dbaabb750fff0d0798edc3ac339709a1871b873e0b9742a16dcbd1d461fc47ac2b21cbcdf21d8978cb90eae1
SSDEEP

49152:l+0BHZGfL7bE2tPPU59/s3sNNOwfSCqwILfNiD1E77ELHQbrMSUWW79:l+0SL7ptPPU59/s3sNNO8/ZILfNipEXu

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
Ramnit family
ramnit

Executes dropped EXE 2 IoCs

pid	Process
3588	2024-11-25_dc1ee6a07a4f65ebf43b9d8d5e3c307b_avoslocker_luca-stealer_ramnitSrv.exe
3508	DesktopLayer.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000023c16-3.dat	upx
behavioral2/memory/3588-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/3588-9-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/3508-14-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/3508-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	2024-11-25_dc1ee6a07a4f65ebf43b9d8d5e3c307b_avoslocker_luca-stealer_ramnitSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px76B6.tmp	2024-11-25_dc1ee6a07a4f65ebf43b9d8d5e3c307b_avoslocker_luca-stealer_ramnitSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	2024-11-25_dc1ee6a07a4f65ebf43b9d8d5e3c307b_avoslocker_luca-stealer_ramnitSrv.exe

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	2024-11-25_dc1ee6a07a4f65ebf43b9d8d5e3c307b_avoslocker_luca-stealer_ramnit.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-25_dc1ee6a07a4f65ebf43b9d8d5e3c307b_avoslocker_luca-stealer_ramnitSrv.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 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2031366302"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2035584889"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31145812"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31145812"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31145812"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2031366302"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "439315941"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{A4AF677A-AB47-11EF-AEE2-7E3D785E6C2E} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3508	DesktopLayer.exe
3508	DesktopLayer.exe
3508	DesktopLayer.exe
3508	DesktopLayer.exe
3508	DesktopLayer.exe
3508	DesktopLayer.exe
3508	DesktopLayer.exe
3508	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4536	iexplore.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
3396	2024-11-25_dc1ee6a07a4f65ebf43b9d8d5e3c307b_avoslocker_luca-stealer_ramnit.exe
3396	2024-11-25_dc1ee6a07a4f65ebf43b9d8d5e3c307b_avoslocker_luca-stealer_ramnit.exe
4536	iexplore.exe
4536	iexplore.exe
3868	IEXPLORE.EXE
3868	IEXPLORE.EXE
3868	IEXPLORE.EXE
3868	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3396 wrote to memory of 3588	3396	2024-11-25_dc1ee6a07a4f65ebf43b9d8d5e3c307b_avoslocker_luca-stealer_ramnit.exe	83
PID 3396 wrote to memory of 3588	3396	2024-11-25_dc1ee6a07a4f65ebf43b9d8d5e3c307b_avoslocker_luca-stealer_ramnit.exe	83
PID 3396 wrote to memory of 3588	3396	2024-11-25_dc1ee6a07a4f65ebf43b9d8d5e3c307b_avoslocker_luca-stealer_ramnit.exe	83
PID 3588 wrote to memory of 3508	3588	2024-11-25_dc1ee6a07a4f65ebf43b9d8d5e3c307b_avoslocker_luca-stealer_ramnitSrv.exe	84
PID 3588 wrote to memory of 3508	3588	2024-11-25_dc1ee6a07a4f65ebf43b9d8d5e3c307b_avoslocker_luca-stealer_ramnitSrv.exe	84
PID 3588 wrote to memory of 3508	3588	2024-11-25_dc1ee6a07a4f65ebf43b9d8d5e3c307b_avoslocker_luca-stealer_ramnitSrv.exe	84
PID 3508 wrote to memory of 4536	3508	DesktopLayer.exe	85
PID 3508 wrote to memory of 4536	3508	DesktopLayer.exe	85
PID 4536 wrote to memory of 3868	4536	iexplore.exe	86
PID 4536 wrote to memory of 3868	4536	iexplore.exe	86
PID 4536 wrote to memory of 3868	4536	iexplore.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-11-25_dc1ee6a07a4f65ebf43b9d8d5e3c307b_avoslocker_luca-stealer_ramnit.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-25_dc1ee6a07a4f65ebf43b9d8d5e3c307b_avoslocker_luca-stealer_ramnit.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3396
- C:\Users\Admin\AppData\Local\Temp\2024-11-25_dc1ee6a07a4f65ebf43b9d8d5e3c307b_avoslocker_luca-stealer_ramnitSrv.exe
  C:\Users\Admin\AppData\Local\Temp\2024-11-25_dc1ee6a07a4f65ebf43b9d8d5e3c307b_avoslocker_luca-stealer_ramnitSrv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3588
- - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
    "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:3508
  - - 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:4536
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4536 CREDAT:17410 /prefetch:2
        5⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:3868

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\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
a6dfcf513cd338ab2640f399e560ba31

SHA1
cbc6ea36eef4c8e6e8524b2aa220b9c0017a9145

SHA256
fac20d9c0f5375b23b8932cb8ecb0839245962b4b2cd91924cfc0d9206e4fabf

SHA512
7b2dc6f8ac8fc1503caa508e8efb767a99448c35ab4714c46c034536b4b7b9067b2bf3170798130fe5a9d2763f38308aba868ca301791d0abf60e169d17acd12

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

Filesize
404B

MD5
1d5b8491a4cc8cf90a0653ccb9c9e340

SHA1
63b94cd4b0f27dee27c2d3df1708da17c84a8fff

SHA256
6ce8fd595534480401021135d519a90ffe6a3137c34f7ee4e55ddb1e5d317c67

SHA512
ae6071e1bf31936c8afee36be5ef88dfd3eece88a98a335a63d535c5c6ed598b6f4d7e7887ddc65ce9b3ebec04b2c01a39f5905bdee98026447b981114d0f7e5

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\M6JHG9EK\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Users\Admin\AppData\Local\Temp\2024-11-25_dc1ee6a07a4f65ebf43b9d8d5e3c307b_avoslocker_luca-stealer_ramnitSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/3396-17-0x0000000000E40000-0x00000000010A4000-memory.dmp

Filesize
2.4MB

Download
memory/3396-18-0x0000000000E40000-0x00000000010A4000-memory.dmp

Filesize
2.4MB

Download
memory/3396-0-0x0000000000E40000-0x00000000010A4000-memory.dmp

Filesize
2.4MB

Download
memory/3508-14-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3508-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3508-13-0x0000000000450000-0x0000000000451000-memory.dmp

Filesize
4KB

Download
memory/3588-8-0x0000000001F00000-0x0000000001F0F000-memory.dmp

Filesize
60KB

Download
memory/3588-9-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3588-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

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