ramnit | 7bd1e0c55451a630d5c43486e99de0b610d878dc13e7212dd4b827d0dbd35c36

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
15/11/2024, 11:44

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General

Target
2024-11-15_ce145605aee5b2c2277647a3cc1b20f4_bkransomware_ramnit.exe
Size 1.9MB
Sample241115-nwl3vstdph
SHA256 7bd1e0c55451a630d5c43486e99de0b610d878dc13e7212dd4b827d0dbd35c36
MD5 ce145605aee5b2c2277647a3cc1b20f4
SHA1 22b7f0892b7eb909ec8620e42dff7d53e27540e5
SHA512 fe26f6c09f523c0e26060f382080bf125e9824bd447a52f6ef39c28f4ba1daebb710f2faec0a8707254900d522cb92e6f01663b5e79f5a98cf2aff2d96bf4e5c
SSDEEP 49152:NexqJHK1DGeJfqopT1zZbFRKnxRBGoxLibj9Xl7Z/9Uu0E5W:GqJHK1zJbpTVZb8pLlibj9Xl7Z/9nE
MD5 SHA1 SHA512 SSDEEP

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
2392	2024-11-15_ce145605aee5b2c2277647a3cc1b20f4_bkransomware_ramnitSrv.exe
4968	DesktopLayer.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000023b19-3.dat	upx
behavioral2/memory/2392-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/2392-8-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4968-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4968-17-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px77FF.tmp	2024-11-15_ce145605aee5b2c2277647a3cc1b20f4_bkransomware_ramnitSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	2024-11-15_ce145605aee5b2c2277647a3cc1b20f4_bkransomware_ramnitSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	2024-11-15_ce145605aee5b2c2277647a3cc1b20f4_bkransomware_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	2024-11-15_ce145605aee5b2c2277647a3cc1b20f4_bkransomware_ramnit.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-15_ce145605aee5b2c2277647a3cc1b20f4_bkransomware_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 (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\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
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "438436070"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31143763"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3710137936"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3712794540"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{08AC5CF8-A347-11EF-B9B6-E6FB6C85BB83} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3710137936"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31143763"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31143763"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4968	DesktopLayer.exe
4968	DesktopLayer.exe
4968	DesktopLayer.exe
4968	DesktopLayer.exe
4968	DesktopLayer.exe
4968	DesktopLayer.exe
4968	DesktopLayer.exe
4968	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2248	iexplore.exe

Suspicious use of SetWindowsHookEx 9 IoCs

pid	Process
3916	2024-11-15_ce145605aee5b2c2277647a3cc1b20f4_bkransomware_ramnit.exe
3916	2024-11-15_ce145605aee5b2c2277647a3cc1b20f4_bkransomware_ramnit.exe
2248	iexplore.exe
2248	iexplore.exe
3916	2024-11-15_ce145605aee5b2c2277647a3cc1b20f4_bkransomware_ramnit.exe
2560	IEXPLORE.EXE
2560	IEXPLORE.EXE
2560	IEXPLORE.EXE
2560	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3916 wrote to memory of 2392	3916	2024-11-15_ce145605aee5b2c2277647a3cc1b20f4_bkransomware_ramnit.exe	83
PID 3916 wrote to memory of 2392	3916	2024-11-15_ce145605aee5b2c2277647a3cc1b20f4_bkransomware_ramnit.exe	83
PID 3916 wrote to memory of 2392	3916	2024-11-15_ce145605aee5b2c2277647a3cc1b20f4_bkransomware_ramnit.exe	83
PID 2392 wrote to memory of 4968	2392	2024-11-15_ce145605aee5b2c2277647a3cc1b20f4_bkransomware_ramnitSrv.exe	84
PID 2392 wrote to memory of 4968	2392	2024-11-15_ce145605aee5b2c2277647a3cc1b20f4_bkransomware_ramnitSrv.exe	84
PID 2392 wrote to memory of 4968	2392	2024-11-15_ce145605aee5b2c2277647a3cc1b20f4_bkransomware_ramnitSrv.exe	84
PID 4968 wrote to memory of 2248	4968	DesktopLayer.exe	85
PID 4968 wrote to memory of 2248	4968	DesktopLayer.exe	85
PID 2248 wrote to memory of 2560	2248	iexplore.exe	86
PID 2248 wrote to memory of 2560	2248	iexplore.exe	86
PID 2248 wrote to memory of 2560	2248	iexplore.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-11-15_ce145605aee5b2c2277647a3cc1b20f4_bkransomware_ramnit.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-15_ce145605aee5b2c2277647a3cc1b20f4_bkransomware_ramnit.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3916
- C:\Users\Admin\AppData\Local\Temp\2024-11-15_ce145605aee5b2c2277647a3cc1b20f4_bkransomware_ramnitSrv.exe
  C:\Users\Admin\AppData\Local\Temp\2024-11-15_ce145605aee5b2c2277647a3cc1b20f4_bkransomware_ramnitSrv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2392
- - 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:4968
  - - 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:2248
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2248 CREDAT:17410 /prefetch:2
        5⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:2560

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

7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Size 471B
SHA256 14e6269329dc675b9c53db477169c352464cdcbf50d9653a22620720fcfd6573
MD5 4716dbab6f2ab2afcbaf76db5f0b38c9
SHA1 9ff921c8611055814c46c2f6040cc4212879907b
SHA512 3ceb67375c9023369d37b78cc52157c6c3c540b3aef9dc470ccd562b9046a3883fc27a7f193550230987927db461d7e7b0a8cddfec12f45817268499bb78d02d
MD5 SHA1 SHA512

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7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Size 404B
SHA256 d381672f632407b5f7d59380d17b802223aaf2d6416e197ccbbba74f79e688fd
MD5 afee958f588f3f1c974325129c433ba9
SHA1 7bc816780b62ddd5d2f6a79e950442cb7196b0ff
SHA512 68963505490fe677499a2f5f62f11be6629c97fddc7ad6b29e19d6af8dd67db67a5db4aa098c1d480b8600dcc2580746f9fca2ff00b0e550915e726e2f6df8b1
MD5 SHA1 SHA512

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suggestions[1].en-US

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\9MFSIIMR\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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2024-11-15_ce145605aee5b2c2277647a3cc1b20f4_bkransomware_ramnitSrv.exe

Path C:\Users\Admin\AppData\Local\Temp\2024-11-15_ce145605aee5b2c2277647a3cc1b20f4_bkransomware_ramnitSrv.exe
Size 55KB
SHA256 fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
MD5 ff5e1f27193ce51eec318714ef038bef
SHA1 b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA512 c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
SSDEEP 1536:Q+hzRsibKplyXTq8OGRnsPFG+RODTb7MXL5uXZnzE:bROzoTq0+RO7IwnY
MD5 SHA1 SHA512 SSDEEP

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memory/2392-4-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/2392-8-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/2392-6-0x0000000002040000-0x000000000204F000-memory.dmp

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memory/3916-0-0x0000000000630000-0x000000000082C000-memory.dmp

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memory/3916-18-0x0000000000630000-0x000000000082C000-memory.dmp

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memory/4968-14-0x0000000000490000-0x0000000000491000-memory.dmp

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memory/4968-15-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/4968-17-0x0000000000400000-0x000000000042E000-memory.dmp

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