ramnit | 2accae9c4377f2cc1826425bbd536f7bed5695dff2d11db4aec2b01e7c363dcb

Analysis

max time kernel
93s
max time network
145s
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 11:43

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General

Target

2024-11-15_4659b9cb8fb2d7e7e9154cbd29f008c4_bkransomware_ramnit.exe
Size

3.4MB
MD5

4659b9cb8fb2d7e7e9154cbd29f008c4
SHA1

cd589be90f9f012bb981dffc9c603c3041404b4d
SHA256

2accae9c4377f2cc1826425bbd536f7bed5695dff2d11db4aec2b01e7c363dcb
SHA512

7fb4fa87a55b597d7fa569307714cc274686e6cdcfd23b5b1b8fde5aa2e300113fd2efc5e9ebca03cd2b640ee6411790d9663d5ecc56768ac4ee6ebc102579d8
SSDEEP

98304:48CN2qephlvHVu8JE7zvDCpsih8VCRe+FLOAkGkzdnEVomFHKnPWKY:4YVeCpsih3e+FLOyomFHKnPWKY

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
4680	2024-11-15_4659b9cb8fb2d7e7e9154cbd29f008c4_bkransomware_ramnitSrv.exe
4256	DesktopLayer.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000023b9c-3.dat	upx
behavioral2/memory/4680-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4680-6-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4256-11-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4256-16-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4256-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4256-12-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	2024-11-15_4659b9cb8fb2d7e7e9154cbd29f008c4_bkransomware_ramnitSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	2024-11-15_4659b9cb8fb2d7e7e9154cbd29f008c4_bkransomware_ramnitSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\pxA335.tmp	2024-11-15_4659b9cb8fb2d7e7e9154cbd29f008c4_bkransomware_ramnitSrv.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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_4659b9cb8fb2d7e7e9154cbd29f008c4_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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-15_4659b9cb8fb2d7e7e9154cbd29f008c4_bkransomware_ramnit.exe

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{DCBD2DDE-A346-11EF-A7EA-7ECF469E42CC} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2971792380"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31143763"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2971792380"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31143763"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2976948818"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31143763"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "438435996"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4256	DesktopLayer.exe
4256	DesktopLayer.exe
4256	DesktopLayer.exe
4256	DesktopLayer.exe
4256	DesktopLayer.exe
4256	DesktopLayer.exe
4256	DesktopLayer.exe
4256	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3488	iexplore.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
5044	2024-11-15_4659b9cb8fb2d7e7e9154cbd29f008c4_bkransomware_ramnit.exe
3488	iexplore.exe
3488	iexplore.exe
872	IEXPLORE.EXE
872	IEXPLORE.EXE
872	IEXPLORE.EXE
872	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 5044 wrote to memory of 4680	5044	2024-11-15_4659b9cb8fb2d7e7e9154cbd29f008c4_bkransomware_ramnit.exe	84
PID 5044 wrote to memory of 4680	5044	2024-11-15_4659b9cb8fb2d7e7e9154cbd29f008c4_bkransomware_ramnit.exe	84
PID 5044 wrote to memory of 4680	5044	2024-11-15_4659b9cb8fb2d7e7e9154cbd29f008c4_bkransomware_ramnit.exe	84
PID 4680 wrote to memory of 4256	4680	2024-11-15_4659b9cb8fb2d7e7e9154cbd29f008c4_bkransomware_ramnitSrv.exe	85
PID 4680 wrote to memory of 4256	4680	2024-11-15_4659b9cb8fb2d7e7e9154cbd29f008c4_bkransomware_ramnitSrv.exe	85
PID 4680 wrote to memory of 4256	4680	2024-11-15_4659b9cb8fb2d7e7e9154cbd29f008c4_bkransomware_ramnitSrv.exe	85
PID 4256 wrote to memory of 3488	4256	DesktopLayer.exe	86
PID 4256 wrote to memory of 3488	4256	DesktopLayer.exe	86
PID 3488 wrote to memory of 872	3488	iexplore.exe	87
PID 3488 wrote to memory of 872	3488	iexplore.exe	87
PID 3488 wrote to memory of 872	3488	iexplore.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-11-15_4659b9cb8fb2d7e7e9154cbd29f008c4_bkransomware_ramnit.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-15_4659b9cb8fb2d7e7e9154cbd29f008c4_bkransomware_ramnit.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5044
- C:\Users\Admin\AppData\Local\Temp\2024-11-15_4659b9cb8fb2d7e7e9154cbd29f008c4_bkransomware_ramnitSrv.exe
  C:\Users\Admin\AppData\Local\Temp\2024-11-15_4659b9cb8fb2d7e7e9154cbd29f008c4_bkransomware_ramnitSrv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4680
- - 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:4256
  - - 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:3488
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3488 CREDAT:17410 /prefetch:2
        5⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:872

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

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
4716dbab6f2ab2afcbaf76db5f0b38c9

SHA1
9ff921c8611055814c46c2f6040cc4212879907b

SHA256
14e6269329dc675b9c53db477169c352464cdcbf50d9653a22620720fcfd6573

SHA512
3ceb67375c9023369d37b78cc52157c6c3c540b3aef9dc470ccd562b9046a3883fc27a7f193550230987927db461d7e7b0a8cddfec12f45817268499bb78d02d

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

Filesize
404B

MD5
1c6bd4a053d5b3bcf36bd7b1f8af2271

SHA1
bc8e1d60cd496ca95e7ef8b3c787d70ff2d4b095

SHA256
45007de550d35fb92f93bebaea3686afde539b045e054e14861cd319fda78fca

SHA512
c387355c3ef4bf9d565ae98daa801adf77f8a63eafa17009e318a68a5b13c16302c7eec659937c641c1eb6730f3c8d601313c368bc8053f540aa54158aef7c6c

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\VKYZDMA5\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Users\Admin\AppData\Local\Temp\2024-11-15_4659b9cb8fb2d7e7e9154cbd29f008c4_bkransomware_ramnitSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/4256-11-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4256-14-0x0000000000490000-0x0000000000491000-memory.dmp

Filesize
4KB

Download
memory/4256-16-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4256-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4256-12-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4680-6-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4680-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/5044-18-0x00000000004E0000-0x0000000000852000-memory.dmp

Filesize
3.4MB

Download
memory/5044-0-0x00000000004E0000-0x0000000000852000-memory.dmp

Filesize
3.4MB

Download