ramnit | 42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4ae

Analysis

max time kernel
143s
max time network
145s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
27-11-2022 19:40

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General

Target

42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4ae.exe
Size

3.2MB
MD5

e3b023bc62fa57bc1c0bc3efb6b67859
SHA1

30cb11f68504456b276dd31cf1bf4b7868176e61
SHA256

42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4ae
SHA512

4f3b0e3b608922e736c5611f360a69407bdc2b01382882bf934dbec28770a81448789d09f3610a9a5fcfb3f66cfd72700672ec2b9e5e4699c0edfb7a1f2880a8
SSDEEP

98304:3DLQA8AONk/6rb5CMMoDc7QIxj8hoVtJQ2:TQFNkElqP/

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:

42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4aeSrv.exeDesktopLayer.exe

pid process

268 42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4aeSrv.exe
1300 DesktopLayer.exe

pid	process
268	42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4aeSrv.exe
1300	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\42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4aeSrv.exe	upx
C:\Users\Admin\AppData\Local\Temp\42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4aeSrv.exe	upx
C:\Users\Admin\AppData\Local\Temp\42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4aeSrv.exe	upx
\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
C:\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
behavioral1/memory/268-65-0x0000000000400000-0x000000000042E000-memory.dmp	upx
C:\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
behavioral1/memory/1300-68-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Loads dropped DLL 5 IoCs

Processes:

42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4ae.exe42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4aeSrv.exe

pid	process
828	42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4ae.exe
828	42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4ae.exe
828	42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4ae.exe
268	42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4aeSrv.exe
828	42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4ae.exe

Drops file in Program Files directory 3 IoCs

Processes:

42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4aeSrv.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Microsoft\px3506.tmp	42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4aeSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4aeSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4aeSrv.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 28 IoCs

adware spyware

Modify Registry

T1112

Processes:

iexplore.exeIEXPLORE.EXE

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{ACFF6C71-6F54-11ED-9FD0-D6EA6736E294} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "376429474"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

DesktopLayer.exe

pid process

1300 DesktopLayer.exe
1300 DesktopLayer.exe
1300 DesktopLayer.exe
1300 DesktopLayer.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid process

1988 iexplore.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid process

1988 iexplore.exe
1988 iexplore.exe
1752 IEXPLORE.EXE
1752 IEXPLORE.EXE
1752 IEXPLORE.EXE
1752 IEXPLORE.EXE

pid	process
1300	DesktopLayer.exe
1300	DesktopLayer.exe
1300	DesktopLayer.exe
1300	DesktopLayer.exe

pid	process
1988	iexplore.exe

pid	process
1988	iexplore.exe
1988	iexplore.exe
1752	IEXPLORE.EXE
1752	IEXPLORE.EXE
1752	IEXPLORE.EXE
1752	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4ae.exe42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4aeSrv.exeDesktopLayer.exeiexplore.exe

description	pid	process	target process
PID 828 wrote to memory of 268	828	42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4ae.exe	42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4aeSrv.exe
PID 828 wrote to memory of 268	828	42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4ae.exe	42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4aeSrv.exe
PID 828 wrote to memory of 268	828	42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4ae.exe	42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4aeSrv.exe
PID 828 wrote to memory of 268	828	42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4ae.exe	42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4aeSrv.exe
PID 268 wrote to memory of 1300	268	42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4aeSrv.exe	DesktopLayer.exe
PID 268 wrote to memory of 1300	268	42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4aeSrv.exe	DesktopLayer.exe
PID 268 wrote to memory of 1300	268	42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4aeSrv.exe	DesktopLayer.exe
PID 268 wrote to memory of 1300	268	42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4aeSrv.exe	DesktopLayer.exe
PID 1300 wrote to memory of 1988	1300	DesktopLayer.exe	iexplore.exe
PID 1300 wrote to memory of 1988	1300	DesktopLayer.exe	iexplore.exe
PID 1300 wrote to memory of 1988	1300	DesktopLayer.exe	iexplore.exe
PID 1300 wrote to memory of 1988	1300	DesktopLayer.exe	iexplore.exe
PID 1988 wrote to memory of 1752	1988	iexplore.exe	IEXPLORE.EXE
PID 1988 wrote to memory of 1752	1988	iexplore.exe	IEXPLORE.EXE
PID 1988 wrote to memory of 1752	1988	iexplore.exe	IEXPLORE.EXE
PID 1988 wrote to memory of 1752	1988	iexplore.exe	IEXPLORE.EXE

C:\Users\Admin\AppData\Local\Temp\42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4ae.exe
"C:\Users\Admin\AppData\Local\Temp\42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4ae.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:828

C:\Users\Admin\AppData\Local\Temp\42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4aeSrv.exe
C:\Users\Admin\AppData\Local\Temp\42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4aeSrv.exe
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:268

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:1300

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:1988

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1988 CREDAT:275457 /prefetch:2
5⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1752

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

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\42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4aeSrv.exe
Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4aeSrv.exe
Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\MOAQF6A1.txt
Filesize
603B

MD5
6a8feecec9733afb549adf767c83122e

SHA1
3ce9019819a9eac844f58f043d3db6859b03c3c8

SHA256
9751cef8e6ea8451da486e2dbd12c70758cbd61109a76ad9f1b17bc06d770578

SHA512
8ad8eb69fe9d0d919b8fbf99c4ffc9821ec9d2e2f8b27ee898f22d6b44f5c85c03e1286abf83dd336766df4245fcacf1dc02f8237cd90708711872e828218a90

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\42a0cb57d66fcdb2f675ae022e51065762e70b4af92b55404a9162acbc65a4aeSrv.exe
Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
\Users\Admin\AppData\Local\Temp\nsj349A.tmp\ButtonLinker.dll
Filesize
7KB

MD5
dd85ac7d85c92dd0e3cc17dfd4890f54

SHA1
a128fb7a05965c1a9913c6f5e419e6c4c0a7d2fa

SHA256
27abd2a4fb1bf66add60221b52d061bbe24d2d21e13600725ff7a5c6c777b504

SHA512
e4ff8216c65110a9d156f37c2062acb53a72daa8af12dfc24278920d9e1a4083a81b1446759df75405b2da34c7bfb1afc33184feedd0aee4ed73f79fcbb1a8a1

Download Submit
\Users\Admin\AppData\Local\Temp\nsj349A.tmp\System.dll
Filesize
67KB

MD5
8fef2ddc02a88527acf5f875aa79590a

SHA1
b3ebe53a0037789c155992eee0547de1a76712b9

SHA256
5b06944f0b948937d87a68d0d584f8de8f169298f5db95336f55696079e88d50

SHA512
7f231356313b7aa4882bfd205529d65022397c91a5aab3658d655524aa3bfe855432ac35cd455f8750530e1b9582e71c710abb94d610ff1ec3e13d5a193d19de

Download Submit
\Users\Admin\AppData\Local\Temp\nsj349A.tmp\System.dll
Filesize
67KB

MD5
8fef2ddc02a88527acf5f875aa79590a

SHA1
b3ebe53a0037789c155992eee0547de1a76712b9

SHA256
5b06944f0b948937d87a68d0d584f8de8f169298f5db95336f55696079e88d50

SHA512
7f231356313b7aa4882bfd205529d65022397c91a5aab3658d655524aa3bfe855432ac35cd455f8750530e1b9582e71c710abb94d610ff1ec3e13d5a193d19de

Download Submit
memory/268-57-0x0000000000000000-mapping.dmp

Download
memory/268-65-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/828-54-0x0000000075AC1000-0x0000000075AC3000-memory.dmp

Filesize
8KB

Download
memory/828-72-0x0000000000500000-0x000000000052E000-memory.dmp

Filesize
184KB

Download
memory/828-70-0x0000000010000000-0x0000000010015000-memory.dmp

Filesize
84KB

Download
memory/828-71-0x0000000000500000-0x000000000052E000-memory.dmp

Filesize
184KB

Download
memory/1300-63-0x0000000000000000-mapping.dmp

Download
memory/1300-68-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download