ramnit | 06a7c03d5bdd96a30a32cff0ae0f587fb0e7553b40c43034b90559584adc921f

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
10-05-2024 16:49

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General

Target

main.exe
Size

4.4MB
MD5

27e243244a463df81e04d4da2a6ef587
SHA1

12534044da0cd25b560bac98947948dbcc487e0a
SHA256

b68d6db558167d66ed3a18b939a1a1ea8d1a0fe421e756f0269cf3950fb3485a
SHA512

973ae8da9ff652baa6617f5cdf7bee67f3f5bb01093e0422e30670acdeb11655527d687822840ffb763cf691069b20f1166d5039a8a22d449b21b3822a7456b6
SSDEEP

98304:JrSxPnI2HnaMixxuAeL4ZrDjDDUKtgEsrDXwYG4ENS2iK4O8SecE5ljRdPZq:JrSxPnI0naMixxuAeL4ZrDjDDd7WXw+h

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

Processes:

mainSrv.exeDesktopLayer.exe

pid	Process
2184	mainSrv.exe
4764	DesktopLayer.exe

UPX packed file 3 IoCs

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

upx

Processes:

resource	yara_rule
behavioral14/files/0x0006000000023266-5.dat	upx
behavioral14/memory/4764-13-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral14/memory/2184-9-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

Processes:

mainSrv.exe

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px4083.tmp	mainSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	mainSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	mainSrv.exe

Modifies Internet Explorer settings 1 TTPs 32 IoCs

adware spyware

Modify Registry

T1112

Processes:

iexplore.exeIEXPLORE.EXE

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{4E5F229D-0EED-11EF-A2D1-F25A6F8D7CFB} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\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-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "585608327"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31105786"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31105786"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "584358465"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31105786"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "585608327"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "422124760"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31105786"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "584358465"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

DesktopLayer.exe

pid	Process
4764	DesktopLayer.exe
4764	DesktopLayer.exe
4764	DesktopLayer.exe
4764	DesktopLayer.exe
4764	DesktopLayer.exe
4764	DesktopLayer.exe
4764	DesktopLayer.exe
4764	DesktopLayer.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

main.exe

description	pid	Process
Token: SeDebugPrivilege	384	main.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid	Process
1048	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid	Process
1048	iexplore.exe
1048	iexplore.exe
2612	IEXPLORE.EXE
2612	IEXPLORE.EXE
2612	IEXPLORE.EXE
2612	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

main.exemainSrv.exeDesktopLayer.exeiexplore.exe

description	pid	Process	procid_target
PID 384 wrote to memory of 2184	384	main.exe	85
PID 384 wrote to memory of 2184	384	main.exe	85
PID 384 wrote to memory of 2184	384	main.exe	85
PID 2184 wrote to memory of 4764	2184	mainSrv.exe	86
PID 2184 wrote to memory of 4764	2184	mainSrv.exe	86
PID 2184 wrote to memory of 4764	2184	mainSrv.exe	86
PID 4764 wrote to memory of 1048	4764	DesktopLayer.exe	87
PID 4764 wrote to memory of 1048	4764	DesktopLayer.exe	87
PID 1048 wrote to memory of 2612	1048	iexplore.exe	88
PID 1048 wrote to memory of 2612	1048	iexplore.exe	88
PID 1048 wrote to memory of 2612	1048	iexplore.exe	88

C:\Users\Admin\AppData\Local\Temp\main.exe
"C:\Users\Admin\AppData\Local\Temp\main.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:384
- C:\Users\Admin\AppData\Local\Temp\mainSrv.exe
  C:\Users\Admin\AppData\Local\Temp\mainSrv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:2184
- - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
    "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:4764
  - - 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:1048
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1048 CREDAT:17410 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:2612

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
d4e65813d7b8f8d34312fcd3c6f4a0f4

SHA1
2a53832fdd5e9b29190a0a8fae0fb0c75944c021

SHA256
2ee66b84c98ae410d13287a9e814aa5518e8435de1d9206fc6be066df18bca50

SHA512
eb517db854ca5ffc1faa6678da2be0b78c0da9fb94c3770a323cb53761fd2e36100671f266cd259d717f91f164362ceaefa92513cd9ecd9656c38a294dd64310

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

Filesize
404B

MD5
f15722485904c80acfb5b79bf9481c28

SHA1
9e023abf0bde0bcf235368bb92644cfbf3e1ff45

SHA256
29d6ea8b7fe632f709e0b668898bcddb88e99fdacc453c2c0e3cb58ba6f54e79

SHA512
bd346b9709ce9c1ab734c878f5d2fb74f002b9937aaa96434046525aac4cfa19968d8fbf480db567e68455e0a8c7110de5f85454e725aac62742e37177551af7

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verB824.tmp

Filesize
15KB

MD5
1a545d0052b581fbb2ab4c52133846bc

SHA1
62f3266a9b9925cd6d98658b92adec673cbe3dd3

SHA256
557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

SHA512
bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\I3C6LG3F\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Users\Admin\AppData\Local\Temp\mainSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/384-12-0x0000000036EC0000-0x0000000036ED0000-memory.dmp

Filesize
64KB

Download
memory/384-1-0x0000000008310000-0x000000000832D000-memory.dmp

Filesize
116KB

Download
memory/384-0-0x0000000008850000-0x0000000008948000-memory.dmp

Filesize
992KB

Download
memory/2184-9-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4764-11-0x00000000006B0000-0x00000000006B1000-memory.dmp

Filesize
4KB

Download
memory/4764-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download