ramnit | 8181758edc0555b9f6e72649bf6777ed34fe2a7786f097fc681ae1e761db6380

Analysis

max time kernel
137s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20230831-en
resource tags

arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
submitted
01/09/2023, 10:30

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

8181758edc0555b9f6e72649bf6777ed34fe2a7786f097fc681ae1e761db6380.dll
Size

912KB
MD5

dde2525f2baab9fee7deb7138c7980ef
SHA1

5f40751dc28c15227a1564f3e8c63c8125193ce6
SHA256

8181758edc0555b9f6e72649bf6777ed34fe2a7786f097fc681ae1e761db6380
SHA512

7de6e13e918a221e35f514ec5dadd35df0fb41404e0055d4dc569a5e3c20a56b3e598dc0aed02d9b591cb179e25b86393a85c0ba8becdaaa10579580ca116320
SSDEEP

12288:8Oq97/78eFYato0rcLHE6UdQyUnAyTbD52Qfl7U5oCDI75RyYauT6iYsyEK3n6f:838uYat3czE3uX/5jfl7C9AzauOi4

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
4488	rundll32Srv.exe
1260	DesktopLayer.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x00060000000231ee-3.dat	upx
behavioral2/memory/4488-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4488-5-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x00060000000231ee-6.dat	upx
behavioral2/files/0x00070000000231f1-10.dat	upx
behavioral2/memory/4488-11-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x00070000000231f1-12.dat	upx
behavioral2/memory/1260-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/1260-18-0x0000000000400000-0x000000000042E000-memory.dmp	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\px7A41.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
3084	3828	WerFault.exe	82

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1628275120"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{8C5548A3-48B2-11EE-BEF4-D22D346EBCB9} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\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-1-5-21-528036852-1341495193-1175965888-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1628275120"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31055039"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31055039"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31055039"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "400329194"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1635777124"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-528036852-1341495193-1175965888-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1260	DesktopLayer.exe
1260	DesktopLayer.exe
1260	DesktopLayer.exe
1260	DesktopLayer.exe
1260	DesktopLayer.exe
1260	DesktopLayer.exe
1260	DesktopLayer.exe
1260	DesktopLayer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2904	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2904	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2904	iexplore.exe
2904	iexplore.exe
4952	IEXPLORE.EXE
4952	IEXPLORE.EXE
4952	IEXPLORE.EXE
4952	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2160 wrote to memory of 3828	2160	rundll32.exe	82
PID 2160 wrote to memory of 3828	2160	rundll32.exe	82
PID 2160 wrote to memory of 3828	2160	rundll32.exe	82
PID 3828 wrote to memory of 4488	3828	rundll32.exe	84
PID 3828 wrote to memory of 4488	3828	rundll32.exe	84
PID 3828 wrote to memory of 4488	3828	rundll32.exe	84
PID 4488 wrote to memory of 1260	4488	rundll32Srv.exe	85
PID 4488 wrote to memory of 1260	4488	rundll32Srv.exe	85
PID 4488 wrote to memory of 1260	4488	rundll32Srv.exe	85
PID 1260 wrote to memory of 2904	1260	DesktopLayer.exe	87
PID 1260 wrote to memory of 2904	1260	DesktopLayer.exe	87
PID 2904 wrote to memory of 4952	2904	iexplore.exe	90
PID 2904 wrote to memory of 4952	2904	iexplore.exe	90
PID 2904 wrote to memory of 4952	2904	iexplore.exe	90

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8181758edc0555b9f6e72649bf6777ed34fe2a7786f097fc681ae1e761db6380.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2160
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\8181758edc0555b9f6e72649bf6777ed34fe2a7786f097fc681ae1e761db6380.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:3828
- - 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:4488
  - - 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:1260
    - - 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:2904
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2904 CREDAT:17410 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4952
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3828 -s 712
    3⤵
    - Program crash
    PID:3084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3828 -ip 3828
1⤵
PID:4704

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

Loading Replay Monitor...

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\Local\Microsoft\Windows\INetCache\IE\GAKQU0X5\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/1260-13-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/1260-14-0x0000000000480000-0x000000000048F000-memory.dmp

Filesize
60KB

Download
memory/1260-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1260-16-0x0000000077422000-0x0000000077423000-memory.dmp

Filesize
4KB

Download
memory/1260-17-0x0000000077422000-0x0000000077423000-memory.dmp

Filesize
4KB

Download
memory/1260-18-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3828-0-0x0000000074DA0000-0x0000000074E8B000-memory.dmp

Filesize
940KB

Download
memory/3828-19-0x0000000074DA0000-0x0000000074E8B000-memory.dmp

Filesize
940KB

Download
memory/4488-7-0x0000000000480000-0x000000000048F000-memory.dmp

Filesize
60KB

Download
memory/4488-11-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4488-5-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4488-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download