ramnit | 7de643a122f5ae084acd6aaf9bfa8809922b53376a9745f8aa4786a857902f9d

Analysis

max time kernel
93s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-11-2024 01:28

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General

Target

7de643a122f5ae084acd6aaf9bfa8809922b53376a9745f8aa4786a857902f9dN.dll
Size

4.9MB
MD5

f6cce8b8cd1da4c4423aaff7e7333d60
SHA1

fc58ed2ba7d5b23eb8587c3e5bdcd7f303cc4554
SHA256

7de643a122f5ae084acd6aaf9bfa8809922b53376a9745f8aa4786a857902f9d
SHA512

679bc0b2c2717763b6ee6be68b66a2ce2f59d5db2053b12ed8a6950617675e59a7549385a7b4c2bbc1b600e53ec23bbe8be349d8fd7f654475fa49f9c52a22a1
SSDEEP

98304:aPlmy1NO7G3rbjjjjKQjzjjAjjjFFnstPJBAUZLH+QaMY7:CkG7bjjjjKQjzjjAjjjjnstPJV1aM

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

Processes:

rundll32Srv.exeDesktopLayer.exe

pid	Process
4004	rundll32Srv.exe
5048	DesktopLayer.exe

Drops file in System32 directory 1 IoCs

Processes:

rundll32.exe

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32Srv.exe	rundll32.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/files/0x000c000000023b36-2.dat	upx
behavioral2/memory/4004-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4004-7-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/5048-12-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/5048-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

Processes:

rundll32Srv.exe

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px734B.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 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid	pid_target	Process	procid_target
1472	3112	WerFault.exe	85
2864	3112	WerFault.exe	85

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

Processes:

rundll32.exerundll32Srv.exeDesktopLayer.exeIEXPLORE.EXE

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32Srv.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

Processes:

iexplore.exeIEXPLORE.EXE

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "438831216"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31144683"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31144683"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3789625010"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3801187601"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{0D4F053B-A6DF-11EF-AF2A-F6235BFAC6D3} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3789625010"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31144683"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

DesktopLayer.exe

pid	Process
5048	DesktopLayer.exe
5048	DesktopLayer.exe
5048	DesktopLayer.exe
5048	DesktopLayer.exe
5048	DesktopLayer.exe
5048	DesktopLayer.exe
5048	DesktopLayer.exe
5048	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid	Process
408	iexplore.exe

Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

rundll32.exeiexplore.exeIEXPLORE.EXE

pid	Process
3112	rundll32.exe
408	iexplore.exe
408	iexplore.exe
4032	IEXPLORE.EXE
4032	IEXPLORE.EXE
4032	IEXPLORE.EXE
4032	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

rundll32.exerundll32.exerundll32Srv.exeDesktopLayer.exeiexplore.exe

description	pid	Process	procid_target
PID 4580 wrote to memory of 3112	4580	rundll32.exe	85
PID 4580 wrote to memory of 3112	4580	rundll32.exe	85
PID 4580 wrote to memory of 3112	4580	rundll32.exe	85
PID 3112 wrote to memory of 4004	3112	rundll32.exe	86
PID 3112 wrote to memory of 4004	3112	rundll32.exe	86
PID 3112 wrote to memory of 4004	3112	rundll32.exe	86
PID 4004 wrote to memory of 5048	4004	rundll32Srv.exe	87
PID 4004 wrote to memory of 5048	4004	rundll32Srv.exe	87
PID 4004 wrote to memory of 5048	4004	rundll32Srv.exe	87
PID 5048 wrote to memory of 408	5048	DesktopLayer.exe	88
PID 5048 wrote to memory of 408	5048	DesktopLayer.exe	88
PID 408 wrote to memory of 4032	408	iexplore.exe	92
PID 408 wrote to memory of 4032	408	iexplore.exe	92
PID 408 wrote to memory of 4032	408	iexplore.exe	92

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7de643a122f5ae084acd6aaf9bfa8809922b53376a9745f8aa4786a857902f9dN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4580
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\7de643a122f5ae084acd6aaf9bfa8809922b53376a9745f8aa4786a857902f9dN.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3112
- - C:\Windows\SysWOW64\rundll32Srv.exe
    C:\Windows\SysWOW64\rundll32Srv.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4004
  - - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
      "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:5048
    - - 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:408
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:408 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4032
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3112 -s 760
    3⤵
    - Program crash
    PID:1472
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3112 -s 628
    3⤵
    - Program crash
    PID:2864

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3112 -ip 3112
1⤵
PID:2520

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3112 -ip 3112
1⤵
PID:2552

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
11d14077869dba67110eb7f6cae1b120

SHA1
f05e6bb7204a6e0efff37eedf3447eedc5de7b84

SHA256
d59818a872b22bd33909691c19daaf807ac7042fc6897dea5ba296d02530f39e

SHA512
9b62bb5f3e777e67ce440ca88f81e5e215443ad2c679b076d10a0534e816853340589d8d8e5e36fc53d60efe4dd5c0537e0fdf011064d1f8ff2c2dbffc2c992d

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

Filesize
404B

MD5
403f0ca933391c6a95dd1336de69b09d

SHA1
9264bc7738f1a8733b7cf23a32c7e4d1a04cfe91

SHA256
a26584c26f719d3b2c1d96650258be0d8400d495bc4eed9f78592d39bb298446

SHA512
08d7d4134174749998a4b6a80095f7aeeb232d7f1e7ea331725b36b359b327e4bcd26fc433cef3906b32188ff23ec42e99c1a03ad8712936131e983694d30c7b

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\DQ67RYHS\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/3112-18-0x0000000010000000-0x0000000010549000-memory.dmp

Filesize
5.3MB

Download
memory/3112-19-0x00000000023D0000-0x00000000023D1000-memory.dmp

Filesize
4KB

Download
memory/3112-20-0x00000000023C0000-0x00000000023C1000-memory.dmp

Filesize
4KB

Download
memory/3112-3-0x0000000010000000-0x0000000010549000-memory.dmp

Filesize
5.3MB

Download
memory/3112-17-0x0000000000C10000-0x0000000000C11000-memory.dmp

Filesize
4KB

Download
memory/4004-6-0x0000000000550000-0x000000000055F000-memory.dmp

Filesize
60KB

Download
memory/4004-7-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4004-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/5048-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/5048-13-0x00000000005A0000-0x00000000005A1000-memory.dmp

Filesize
4KB

Download
memory/5048-12-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download