ramnit | 23ca0d19457d04abaa1fc117eef9291909d754d786505ba9704d34dd18536331

Analysis

max time kernel
143s
max time network
166s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
13/10/2023, 20:12

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General

Target

NEAS.3acc6bfd9d6f10cfe5bbc01ad2302f80.dll
Size

196KB
MD5

3acc6bfd9d6f10cfe5bbc01ad2302f80
SHA1

4b3e3756490b7d32abb6ea01b191f69959c3a7ed
SHA256

23ca0d19457d04abaa1fc117eef9291909d754d786505ba9704d34dd18536331
SHA512

c660190e876b71d41e3b1365b733291eb8ead9c8a76234726ebe4703a7be88b626cf624f39b086bbefe4fb7af5dfd3ec00bce996555f0c9d17a5cfe86eadc27b
SSDEEP

3072:D21ik9sNuWeR18Z745ZG3LoXdgsCjk+6BeMXmkr6ditI2ZXvjAd:a0Nuk745ZVb9r6kNjAd

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

pid	Process
3368	rundll32Srv.exe
4088	DesktopLayer.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3368-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x00070000000231dd-6.dat	upx
behavioral2/files/0x00070000000231dd-3.dat	upx
behavioral2/memory/3368-7-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x00080000000231de-10.dat	upx
behavioral2/memory/4088-12-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x00080000000231de-11.dat	upx

Drops file in System32 directory 1 IoCs

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

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\pxF7CD.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 1 IoCs

pid	pid_target	Process	procid_target
4108	1196	WerFault.exe	85

Modifies Internet Explorer settings 1 TTPs 32 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31063584"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31063584"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "401527118"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3801511071"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\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-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3802918043"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3802918043"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31063584"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31063584"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{C8CC8A01-6A13-11EE-B0C5-7E38B6FF5C60} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3801511071"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4088	DesktopLayer.exe
4088	DesktopLayer.exe
4088	DesktopLayer.exe
4088	DesktopLayer.exe
4088	DesktopLayer.exe
4088	DesktopLayer.exe
4088	DesktopLayer.exe
4088	DesktopLayer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4976	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4976	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4976	iexplore.exe
4976	iexplore.exe
4168	IEXPLORE.EXE
4168	IEXPLORE.EXE
4168	IEXPLORE.EXE
4168	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2760 wrote to memory of 1196	2760	rundll32.exe	85
PID 2760 wrote to memory of 1196	2760	rundll32.exe	85
PID 2760 wrote to memory of 1196	2760	rundll32.exe	85
PID 1196 wrote to memory of 3368	1196	rundll32.exe	86
PID 1196 wrote to memory of 3368	1196	rundll32.exe	86
PID 1196 wrote to memory of 3368	1196	rundll32.exe	86
PID 3368 wrote to memory of 4088	3368	rundll32Srv.exe	88
PID 3368 wrote to memory of 4088	3368	rundll32Srv.exe	88
PID 3368 wrote to memory of 4088	3368	rundll32Srv.exe	88
PID 4088 wrote to memory of 4976	4088	DesktopLayer.exe	89
PID 4088 wrote to memory of 4976	4088	DesktopLayer.exe	89
PID 4976 wrote to memory of 4168	4976	iexplore.exe	92
PID 4976 wrote to memory of 4168	4976	iexplore.exe	92
PID 4976 wrote to memory of 4168	4976	iexplore.exe	92

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.3acc6bfd9d6f10cfe5bbc01ad2302f80.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2760
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.3acc6bfd9d6f10cfe5bbc01ad2302f80.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:1196
- - C:\Windows\SysWOW64\rundll32Srv.exe
    C:\Windows\SysWOW64\rundll32Srv.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - Suspicious use of WriteProcessMemory
    PID:3368
  - - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
      "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:4088
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        Suspicious behavior: GetForegroundWindowSpam
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:4976
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4976 CREDAT:17410 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4168
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1196 -s 608
    3⤵
    - Program crash
    PID:4108

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1196 -ip 1196
1⤵
PID:324

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:\Program Files (x86)\Microsoft\DesktopLayer.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Program Files (x86)\Microsoft\DesktopLayer.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157

Filesize
338B

MD5
0b8b10fb9810a34fbb6088505ab576d9

SHA1
f8f87cea18893369329dc70d58c6b256be66f3d8

SHA256
039fe415d5e1b6654b80f68c50490b8663aee9c55fd658a7ec13cb99986577f0

SHA512
1a1e53e586d94f134b91e801277e3c47a4992a342bc9e6168a8e1099e9a66dabfee3ca5748a149f068b3035315dbb6c336147511317fc983805894d7d31b4ce9

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verF553.tmp

Filesize
15KB

MD5
1a545d0052b581fbb2ab4c52133846bc

SHA1
62f3266a9b9925cd6d98658b92adec673cbe3dd3

SHA256
557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

SHA512
bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\HEITGDYC\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
C:\Windows\SysWOW64\rundll32Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/1196-1-0x0000000010000000-0x0000000010032000-memory.dmp

Filesize
200KB

Download
memory/1196-18-0x0000000010000000-0x0000000010032000-memory.dmp

Filesize
200KB

Download
memory/3368-7-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3368-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3368-5-0x0000000000480000-0x000000000048F000-memory.dmp

Filesize
60KB

Download
memory/4088-12-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4088-13-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/4088-15-0x0000000077862000-0x0000000077863000-memory.dmp

Filesize
4KB

Download
memory/4088-16-0x0000000077862000-0x0000000077863000-memory.dmp

Filesize
4KB

Download