ramnit | c641a8d24354b0ed3cf3d21c21e8c6f58d969a667985f829edebbadcf84f32ec

Resubmissions

16-06-2022 11:45

220616-nwzzqahca6 10

16-06-2022 02:20

220616-cswmcafehr 10

Analysis

max time kernel
133s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
16-06-2022 02:20

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General

Target

ecgpaint.exe
Size

656KB
MD5

7056f2f0f8555fed8cf99ec522d892aa
SHA1

a8bdca81025349245aecaf561d2c373ef5c0fd78
SHA256

9b621534e64ac9bdb30596c43633185a75593a2b400f32c184b4da607d121e2f
SHA512

a7921d4f02c0f03204424af46f95924fbd4a2cca627ff7bf48487807356d342b93d0a9071e6ccf1205686b8ebaf9767122c4c8c3216bf711b4d0a5130578ad96

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:

ecgpaintSrv.exeDesktopLayer.exe

pid process

3684 ecgpaintSrv.exe
4308 DesktopLayer.exe

pid	process
3684	ecgpaintSrv.exe
4308	DesktopLayer.exe

UPX packed file 6 IoCs

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

upx

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\ecgpaintSrv.exe	upx
C:\Users\Admin\AppData\Local\Temp\ecgpaintSrv.exe	upx
behavioral10/memory/3684-138-0x0000000000400000-0x000000000042E000-memory.dmp	upx
C:\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
C:\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
behavioral10/memory/4308-143-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

Processes:

ecgpaintSrv.exe

description	ioc	process
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	ecgpaintSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	ecgpaintSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\pxBCCD.tmp	ecgpaintSrv.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

832 4948 WerFault.exe ecgpaint.exe

pid	pid_target	process	target process
832	4948	WerFault.exe	ecgpaint.exe

Modifies Internet Explorer settings 1 TTPs 28 IoCs

adware spyware

Modify Registry

T1112

Processes:

iexplore.exeIEXPLORE.EXE

description	ioc	process
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\Main\WindowsSearch	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	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 = "362118299"	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\LastCheckForUpdateHighDateTime = "30966072"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	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 (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\{DED7D962-ED2B-11EC-A58B-7E149D876A3C} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30966072"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
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
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3015376248"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3015376248"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	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
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30966072"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3041001203"	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\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

DesktopLayer.exe

pid	process
4308	DesktopLayer.exe
4308	DesktopLayer.exe
4308	DesktopLayer.exe
4308	DesktopLayer.exe
4308	DesktopLayer.exe
4308	DesktopLayer.exe
4308	DesktopLayer.exe
4308	DesktopLayer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

iexplore.exe

pid process

4532 iexplore.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid process

4532 iexplore.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid process

4532 iexplore.exe
4532 iexplore.exe
872 IEXPLORE.EXE
872 IEXPLORE.EXE
872 IEXPLORE.EXE
872 IEXPLORE.EXE

pid	process
4532	iexplore.exe

pid	process
4532	iexplore.exe

pid	process
4532	iexplore.exe
4532	iexplore.exe
872	IEXPLORE.EXE
872	IEXPLORE.EXE
872	IEXPLORE.EXE
872	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

ecgpaint.exeecgpaintSrv.exeDesktopLayer.exeiexplore.exe

description	pid	process	target process
PID 4948 wrote to memory of 3684	4948	ecgpaint.exe	ecgpaintSrv.exe
PID 4948 wrote to memory of 3684	4948	ecgpaint.exe	ecgpaintSrv.exe
PID 4948 wrote to memory of 3684	4948	ecgpaint.exe	ecgpaintSrv.exe
PID 3684 wrote to memory of 4308	3684	ecgpaintSrv.exe	DesktopLayer.exe
PID 3684 wrote to memory of 4308	3684	ecgpaintSrv.exe	DesktopLayer.exe
PID 3684 wrote to memory of 4308	3684	ecgpaintSrv.exe	DesktopLayer.exe
PID 4308 wrote to memory of 4532	4308	DesktopLayer.exe	iexplore.exe
PID 4308 wrote to memory of 4532	4308	DesktopLayer.exe	iexplore.exe
PID 4532 wrote to memory of 872	4532	iexplore.exe	IEXPLORE.EXE
PID 4532 wrote to memory of 872	4532	iexplore.exe	IEXPLORE.EXE
PID 4532 wrote to memory of 872	4532	iexplore.exe	IEXPLORE.EXE

C:\Users\Admin\AppData\Local\Temp\ecgpaint.exe
"C:\Users\Admin\AppData\Local\Temp\ecgpaint.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4948

C:\Users\Admin\AppData\Local\Temp\ecgpaintSrv.exe
C:\Users\Admin\AppData\Local\Temp\ecgpaintSrv.exe
2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:3684

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:4308

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:4532

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4532 CREDAT:17410 /prefetch:2
5⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4948 -s 500
2⤵
- Program crash
PID:832

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 4948 -ip 4948
1⤵
PID:2276

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:\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
404B

MD5
ece635c93fcc75f2a51483b226f95b7a

SHA1
0958e8b2bb1b922d40d2aa0bf62255cfce900d25

SHA256
00b707a3258e43fc634421de65bda023627d8ce17d0f52a0fa2a3660880857dd

SHA512
deec7becf2e76f02e530f52edd31ac10eaf979e7ee800e86a4730e74bda2f63812e61ddc4a4e306f876a6dd817d6c68c402f52d8fc886e2b9d5590a2d6abec7e

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

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

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

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/3684-138-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3684-135-0x0000000000000000-mapping.dmp

Download
memory/3684-139-0x0000000002030000-0x000000000203F000-memory.dmp

Filesize
60KB

Download
memory/4308-140-0x0000000000000000-mapping.dmp

Download
memory/4308-143-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4948-130-0x0000000000400000-0x0000000000576000-memory.dmp

Filesize
1.5MB

Download
memory/4948-134-0x00000000006D0000-0x00000000006F1000-memory.dmp

Filesize
132KB

Download
memory/4948-133-0x00000000006D0000-0x00000000006F1000-memory.dmp

Filesize
132KB

Download
memory/4948-144-0x0000000000400000-0x0000000000576000-memory.dmp

Filesize
1.5MB

Download
memory/4948-145-0x0000000010000000-0x000000001006A000-memory.dmp

Filesize
424KB

Download
memory/4948-146-0x00000000006D0000-0x00000000006F1000-memory.dmp

Filesize
132KB

Download
memory/4948-132-0x00000000006D0000-0x00000000006F1000-memory.dmp

Filesize
132KB

Download
memory/4948-131-0x0000000010000000-0x000000001006A000-memory.dmp

Filesize
424KB

Download