ramnit | c641a8d24354b0ed3cf3d21c21e8c6f58d969a667985f829edebbadcf84f32ec

Resubmissions

16-06-2022 11:45

220616-nwzzqahca6 10

16-06-2022 02:20

220616-cswmcafehr 10

Analysis

max time kernel
136s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
16-06-2022 02:20

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General

Target

tcpip.exe
Size

132KB
MD5

1d0dd320d806faba3ef111d7866dcc95
SHA1

c2346a33783b38fffc3f3aca0c4eba9b315570f7
SHA256

9455b76b37e7a2a7f7ef3ec76f69acd40511b0ddde3af3cf746311a5e2498b15
SHA512

da50030b30cce8f0b3dae0ac4cb105d91d1f3b466780d9fe466479441d9945280d9bec2fee52ede6cdeb802be460072fc63dbe645eb0cc1739d35a8e3f923b17

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 4 IoCs

Processes:

tcpipSrv.exeDesktopLayer.exeFtpsrvSrv.exeDesktopLayer.exe

pid process

4064 tcpipSrv.exe
2556 DesktopLayer.exe
3140 FtpsrvSrv.exe
1304 DesktopLayer.exe

pid	process
4064	tcpipSrv.exe
2556	DesktopLayer.exe
3140	FtpsrvSrv.exe
1304	DesktopLayer.exe

UPX packed file 12 IoCs

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

upx

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\tcpipSrv.exe	upx
behavioral16/memory/4064-133-0x0000000000400000-0x000000000042E000-memory.dmp	upx
C:\Users\Admin\AppData\Local\Temp\tcpipSrv.exe	upx
behavioral16/memory/4064-136-0x0000000000400000-0x000000000042E000-memory.dmp	upx
C:\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
C:\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
behavioral16/memory/2556-140-0x0000000000400000-0x000000000042E000-memory.dmp	upx
C:\Users\Admin\AppData\Local\Temp\FtpsrvSrv.exe	upx
C:\Users\Admin\AppData\Local\Temp\FtpsrvSrv.exe	upx
C:\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
behavioral16/memory/3140-148-0x0000000000400000-0x000000000042E000-memory.dmp	upx
C:\Program Files (x86)\Microsoft\DesktopLayer.exe	upx

Drops file in Program Files directory 5 IoCs

Processes:

tcpipSrv.exeFtpsrvSrv.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	tcpipSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\pxE4C7.tmp	FtpsrvSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	FtpsrvSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\pxD788.tmp	tcpipSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	tcpipSrv.exe

Modifies Internet Explorer settings 1 TTPs 29 IoCs

adware spyware

Modify Registry

T1112

Processes:

iexplore.exeiexplore.exeIEXPLORE.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "362118326"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3304980409"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3202323805"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30966072"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30966072"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30966072"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{E94744D7-ED2B-11EC-A58B-5ABF78284711} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3202323805"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

Processes:

DesktopLayer.exeDesktopLayer.exe

pid	process
2556	DesktopLayer.exe
2556	DesktopLayer.exe
2556	DesktopLayer.exe
2556	DesktopLayer.exe
2556	DesktopLayer.exe
2556	DesktopLayer.exe
2556	DesktopLayer.exe
2556	DesktopLayer.exe
1304	DesktopLayer.exe
1304	DesktopLayer.exe
1304	DesktopLayer.exe
1304	DesktopLayer.exe
1304	DesktopLayer.exe
1304	DesktopLayer.exe
1304	DesktopLayer.exe
1304	DesktopLayer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

iexplore.exe

pid process

4012 iexplore.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid process

4012 iexplore.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid process

4012 iexplore.exe
4012 iexplore.exe
4800 IEXPLORE.EXE
4800 IEXPLORE.EXE
4800 IEXPLORE.EXE
4800 IEXPLORE.EXE

pid	process
4012	iexplore.exe

pid	process
4012	iexplore.exe

pid	process
4012	iexplore.exe
4012	iexplore.exe
4800	IEXPLORE.EXE
4800	IEXPLORE.EXE
4800	IEXPLORE.EXE
4800	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

tcpip.exetcpipSrv.exeDesktopLayer.exeFtpsrv.exeFtpsrvSrv.exeDesktopLayer.exeiexplore.exe

description	pid	process	target process
PID 1284 wrote to memory of 4064	1284	tcpip.exe	tcpipSrv.exe
PID 1284 wrote to memory of 4064	1284	tcpip.exe	tcpipSrv.exe
PID 1284 wrote to memory of 4064	1284	tcpip.exe	tcpipSrv.exe
PID 4064 wrote to memory of 2556	4064	tcpipSrv.exe	DesktopLayer.exe
PID 4064 wrote to memory of 2556	4064	tcpipSrv.exe	DesktopLayer.exe
PID 4064 wrote to memory of 2556	4064	tcpipSrv.exe	DesktopLayer.exe
PID 2556 wrote to memory of 4012	2556	DesktopLayer.exe	iexplore.exe
PID 2556 wrote to memory of 4012	2556	DesktopLayer.exe	iexplore.exe
PID 1284 wrote to memory of 3128	1284	tcpip.exe	Ftpsrv.exe
PID 1284 wrote to memory of 3128	1284	tcpip.exe	Ftpsrv.exe
PID 1284 wrote to memory of 3128	1284	tcpip.exe	Ftpsrv.exe
PID 3128 wrote to memory of 3140	3128	Ftpsrv.exe	FtpsrvSrv.exe
PID 3128 wrote to memory of 3140	3128	Ftpsrv.exe	FtpsrvSrv.exe
PID 3128 wrote to memory of 3140	3128	Ftpsrv.exe	FtpsrvSrv.exe
PID 3140 wrote to memory of 1304	3140	FtpsrvSrv.exe	DesktopLayer.exe
PID 3140 wrote to memory of 1304	3140	FtpsrvSrv.exe	DesktopLayer.exe
PID 3140 wrote to memory of 1304	3140	FtpsrvSrv.exe	DesktopLayer.exe
PID 1304 wrote to memory of 2136	1304	DesktopLayer.exe	iexplore.exe
PID 1304 wrote to memory of 2136	1304	DesktopLayer.exe	iexplore.exe
PID 4012 wrote to memory of 4800	4012	iexplore.exe	IEXPLORE.EXE
PID 4012 wrote to memory of 4800	4012	iexplore.exe	IEXPLORE.EXE
PID 4012 wrote to memory of 4800	4012	iexplore.exe	IEXPLORE.EXE

C:\Users\Admin\AppData\Local\Temp\tcpip.exe
"C:\Users\Admin\AppData\Local\Temp\tcpip.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1284

C:\Users\Admin\AppData\Local\Temp\tcpipSrv.exe
C:\Users\Admin\AppData\Local\Temp\tcpipSrv.exe
2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:4064

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:2556

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe"
4⤵
- Modifies Internet Explorer settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4012

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4012 CREDAT:17410 /prefetch:2
5⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:4800

C:\Users\Admin\AppData\Local\Temp\Ftpsrv.exe
"Ftpsrv.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3128

C:\Users\Admin\AppData\Local\Temp\FtpsrvSrv.exe
C:\Users\Admin\AppData\Local\Temp\FtpsrvSrv.exe
3⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:3140

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:1304

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe"
5⤵
- Modifies Internet Explorer settings
PID:2136

Network

MITRE ATT&CK Enterprise v6

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:\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\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize
471B

MD5
253626de057b0d04c41cb8a08245fcbe

SHA1
ffcb46236625dc17807021f8fe706efda9970958

SHA256
75b3965bbb50f8e182b84896c7496cc36b3710b95bf607734a2dae8c40588989

SHA512
6bab75dea365fe30bc00ac7d53db9d9876929ad2f7576d9090fdd5a3950f2e98b46edd573f3c5c8ab2ccaaab9c4c2e36cc515fa6419b7931a4a9e8b2b44e3113

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize
434B

MD5
e6ea6e15140bb9c323a3e777512fa210

SHA1
d0815a55ee6ab48a573127f476a4540d01e362d8

SHA256
c02dbe8e60702bc85abadbfdbb5d07f4b9be25ba93759766fda96fd022c2a990

SHA512
0491257ac2c4b2aa473f9131f44951fba355ce48006af33e69a40d4d6006b8f2923763a14bc6954e4e4d0fad8fd19142129e93fd96983aa350d6ed42a3d9fc78

Download Submit
C:\Users\Admin\AppData\Local\Temp\FtpsrvSrv.exe
Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\FtpsrvSrv.exe
Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\tcpipSrv.exe
Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\tcpipSrv.exe
Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/1284-150-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1284-130-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1304-146-0x0000000000000000-mapping.dmp

Download
memory/2556-137-0x0000000000000000-mapping.dmp

Download
memory/2556-140-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3128-151-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3128-142-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3128-141-0x0000000000000000-mapping.dmp

Download
memory/3140-148-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3140-143-0x0000000000000000-mapping.dmp

Download
memory/4064-136-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4064-134-0x00000000004B0000-0x00000000004BF000-memory.dmp

Filesize
60KB

Download
memory/4064-133-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4064-131-0x0000000000000000-mapping.dmp

Download