ramnit | c641a8d24354b0ed3cf3d21c21e8c6f58d969a667985f829edebbadcf84f32ec

Resubmissions

16-06-2022 11:45

220616-nwzzqahca6 10

16-06-2022 02:20

220616-cswmcafehr 10

Analysis

max time kernel
132s
max time network
188s
platform
windows7_x64
resource
win7-20220414-en
submitted
16-06-2022 02:20

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General

Target

FtpSrv.exe
Size

124KB
MD5

3d32a10d3505697451519ed9578e349c
SHA1

c02e2cf2c18da681c0556b3d9259400864c85cee
SHA256

31972345438e370070d128c0564e5f1d2008a23edbf94549246597ced5755340
SHA512

7e1466d9f200163b50a1d7c5efa9bb7e12289f2535603c49d5e78c834858b4522b76f68494f3904d02bd8862a30f8ae49224a8c376076953f5f1362fa5e931e2

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:

FtpSrvSrv.exeDesktopLayer.exe

pid process

1732 FtpSrvSrv.exe
1352 DesktopLayer.exe

pid	process
1732	FtpSrvSrv.exe
1352	DesktopLayer.exe

UPX packed file 8 IoCs

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

upx

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\FtpSrvSrv.exe	upx
C:\Users\Admin\AppData\Local\Temp\FtpSrvSrv.exe	upx
C:\Users\Admin\AppData\Local\Temp\FtpSrvSrv.exe	upx
\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
behavioral3/memory/1732-62-0x0000000000400000-0x000000000042E000-memory.dmp	upx
C:\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
C:\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
behavioral3/memory/1352-65-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Loads dropped DLL 2 IoCs

Processes:

FtpSrv.exeFtpSrvSrv.exe

pid process

288 FtpSrv.exe
1732 FtpSrvSrv.exe

pid	process
288	FtpSrv.exe
1732	FtpSrvSrv.exe

Drops file in Program Files directory 3 IoCs

Processes:

FtpSrvSrv.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Microsoft\px8141.tmp	FtpSrvSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	FtpSrvSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	FtpSrvSrv.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-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{D1D00BA1-ED2B-11EC-8312-7EDEB47CBF10} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "362118295"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

DesktopLayer.exe

pid process

1352 DesktopLayer.exe
1352 DesktopLayer.exe
1352 DesktopLayer.exe
1352 DesktopLayer.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid process

948 iexplore.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid process

948 iexplore.exe
948 iexplore.exe
560 IEXPLORE.EXE
560 IEXPLORE.EXE
560 IEXPLORE.EXE
560 IEXPLORE.EXE

pid	process
1352	DesktopLayer.exe
1352	DesktopLayer.exe
1352	DesktopLayer.exe
1352	DesktopLayer.exe

pid	process
948	iexplore.exe

pid	process
948	iexplore.exe
948	iexplore.exe
560	IEXPLORE.EXE
560	IEXPLORE.EXE
560	IEXPLORE.EXE
560	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

FtpSrv.exeFtpSrvSrv.exeDesktopLayer.exeiexplore.exe

description	pid	process	target process
PID 288 wrote to memory of 1732	288	FtpSrv.exe	FtpSrvSrv.exe
PID 288 wrote to memory of 1732	288	FtpSrv.exe	FtpSrvSrv.exe
PID 288 wrote to memory of 1732	288	FtpSrv.exe	FtpSrvSrv.exe
PID 288 wrote to memory of 1732	288	FtpSrv.exe	FtpSrvSrv.exe
PID 1732 wrote to memory of 1352	1732	FtpSrvSrv.exe	DesktopLayer.exe
PID 1732 wrote to memory of 1352	1732	FtpSrvSrv.exe	DesktopLayer.exe
PID 1732 wrote to memory of 1352	1732	FtpSrvSrv.exe	DesktopLayer.exe
PID 1732 wrote to memory of 1352	1732	FtpSrvSrv.exe	DesktopLayer.exe
PID 1352 wrote to memory of 948	1352	DesktopLayer.exe	iexplore.exe
PID 1352 wrote to memory of 948	1352	DesktopLayer.exe	iexplore.exe
PID 1352 wrote to memory of 948	1352	DesktopLayer.exe	iexplore.exe
PID 1352 wrote to memory of 948	1352	DesktopLayer.exe	iexplore.exe
PID 948 wrote to memory of 560	948	iexplore.exe	IEXPLORE.EXE
PID 948 wrote to memory of 560	948	iexplore.exe	IEXPLORE.EXE
PID 948 wrote to memory of 560	948	iexplore.exe	IEXPLORE.EXE
PID 948 wrote to memory of 560	948	iexplore.exe	IEXPLORE.EXE

C:\Users\Admin\AppData\Local\Temp\FtpSrv.exe
"C:\Users\Admin\AppData\Local\Temp\FtpSrv.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:288

C:\Users\Admin\AppData\Local\Temp\FtpSrvSrv.exe
C:\Users\Admin\AppData\Local\Temp\FtpSrvSrv.exe
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1732

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:1352

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:948

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:948 CREDAT:275457 /prefetch:2
5⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:560

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\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\Roaming\Microsoft\Windows\Cookies\XZ7DF5P2.txt
Filesize
603B

MD5
d05c7e7ef9faa1e707732fc1bf8c2c98

SHA1
b4265b09c1c09199cabde68f6aa81168bdbff098

SHA256
c5f98009785f3ba6b5189743e08e2ff5b72008c33757dd1a8d6b19d3a2293571

SHA512
e864f5180a39dcb7ec71326c857ba3fa2012a1bdbeaa186743fc214e9b5a4fdfac4b1cdf9adcb23fbb1683162b7419422b04e74b62a5a7d7e9f56664b90c9bf3

Download Submit
\Program Files (x86)\Microsoft\DesktopLayer.exe
Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
\Users\Admin\AppData\Local\Temp\FtpSrvSrv.exe
Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/288-66-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/288-67-0x0000000000220000-0x000000000024E000-memory.dmp

Filesize
184KB

Download
memory/1352-60-0x0000000000000000-mapping.dmp

Download
memory/1352-65-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1732-57-0x00000000755A1000-0x00000000755A3000-memory.dmp

Filesize
8KB

Download
memory/1732-62-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1732-55-0x0000000000000000-mapping.dmp

Download