ramnit | 351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86a

Analysis

max time kernel
248s
max time network
362s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
23-11-2022 21:30

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General

Target

351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86a.exe
Size

8.7MB
MD5

7d3973c408220ed7d52ae4e499b100e2
SHA1

376946e12efb2d88f012d9514c38fa4cc58ddf6d
SHA256

351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86a
SHA512

e8ca596bd93645ebf0508e9f95f58e5425825918c86a4521dd9b3a92777a7ea1eb90b9abaa0e0f65be4cf3e3e2edf9be67e87274155ae0560be06893aa98271b
SSDEEP

196608:uxP/mHRnJcqAkcJSSNHUq9A514hssZi14WNHMdzegViWnhnjnl8le:UP/iAqAHJZNfS5yFVWdczqWhjj

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:

351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exeDesktopLayer.exe

pid process

1264 351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe
1684 DesktopLayer.exe

pid	process
1264	351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe
1684	DesktopLayer.exe

UPX packed file 9 IoCs

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

upx

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe	upx
C:\Users\Admin\AppData\Local\Temp\351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe	upx
C:\Users\Admin\AppData\Local\Temp\351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe	upx
behavioral1/memory/556-63-0x0000000000530000-0x000000000055E000-memory.dmp	upx
behavioral1/memory/1264-65-0x0000000000400000-0x000000000042E000-memory.dmp	upx
\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
C:\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
C:\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
behavioral1/memory/1684-72-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Loads dropped DLL 5 IoCs

Processes:

351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86a.exe351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe

pid	process
556	351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86a.exe
556	351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86a.exe
556	351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86a.exe
1264	351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe
556	351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86a.exe

Drops file in Program Files directory 3 IoCs

Processes:

351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Microsoft\pxB7BC.tmp	351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.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 30 IoCs

adware spyware

Modify Registry

T1112

Processes:

iexplore.exeIEXPLORE.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{3951A371-6B98-11ED-BF38-72F0FB4431DC} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\SearchScopes	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "2"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "376018689"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

DesktopLayer.exe

pid process

1684 DesktopLayer.exe
1684 DesktopLayer.exe
1684 DesktopLayer.exe
1684 DesktopLayer.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid process

1244 iexplore.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid process

1244 iexplore.exe
1244 iexplore.exe
1964 IEXPLORE.EXE
1964 IEXPLORE.EXE
1964 IEXPLORE.EXE
1964 IEXPLORE.EXE

pid	process
1684	DesktopLayer.exe
1684	DesktopLayer.exe
1684	DesktopLayer.exe
1684	DesktopLayer.exe

pid	process
1244	iexplore.exe

pid	process
1244	iexplore.exe
1244	iexplore.exe
1964	IEXPLORE.EXE
1964	IEXPLORE.EXE
1964	IEXPLORE.EXE
1964	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86a.exe351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exeDesktopLayer.exeiexplore.exe

description	pid	process	target process
PID 556 wrote to memory of 1264	556	351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86a.exe	351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe
PID 556 wrote to memory of 1264	556	351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86a.exe	351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe
PID 556 wrote to memory of 1264	556	351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86a.exe	351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe
PID 556 wrote to memory of 1264	556	351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86a.exe	351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe
PID 1264 wrote to memory of 1684	1264	351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe	DesktopLayer.exe
PID 1264 wrote to memory of 1684	1264	351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe	DesktopLayer.exe
PID 1264 wrote to memory of 1684	1264	351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe	DesktopLayer.exe
PID 1264 wrote to memory of 1684	1264	351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe	DesktopLayer.exe
PID 1684 wrote to memory of 1244	1684	DesktopLayer.exe	iexplore.exe
PID 1684 wrote to memory of 1244	1684	DesktopLayer.exe	iexplore.exe
PID 1684 wrote to memory of 1244	1684	DesktopLayer.exe	iexplore.exe
PID 1684 wrote to memory of 1244	1684	DesktopLayer.exe	iexplore.exe
PID 1244 wrote to memory of 1964	1244	iexplore.exe	IEXPLORE.EXE
PID 1244 wrote to memory of 1964	1244	iexplore.exe	IEXPLORE.EXE
PID 1244 wrote to memory of 1964	1244	iexplore.exe	IEXPLORE.EXE
PID 1244 wrote to memory of 1964	1244	iexplore.exe	IEXPLORE.EXE

C:\Users\Admin\AppData\Local\Temp\351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86a.exe
"C:\Users\Admin\AppData\Local\Temp\351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86a.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:556

C:\Users\Admin\AppData\Local\Temp\351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe
C:\Users\Admin\AppData\Local\Temp\351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1264

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:1684

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:1244

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1244 CREDAT:275457 /prefetch:2
5⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1964

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\351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe
Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe
Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\3PD0SQHE.txt
Filesize
601B

MD5
7b703416ecc9b8f3d8fb23363a16283e

SHA1
4fb2d5e010692b7beba90babc5f481ab9c84ea07

SHA256
82c46c8cca56e865002eb3f38a227cee3632935716f6ac1c65f686ab2ccdf5b6

SHA512
1e1e232d951452fd18806ae36be89f2f5d45adab4fac7836f56c4c302b0058759c65e7e414d3827f37ca4012142302aad53e86b93cb53218c4c72f8972fc1420

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\351139ca72b7eb15b9eade2c7c2fb12f2df221073b87f8e53f27723a646de86aSrv.exe
Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
\Users\Admin\AppData\Local\Temp\nsu8345.tmp\ButtonLinker.dll
Filesize
7KB

MD5
dd85ac7d85c92dd0e3cc17dfd4890f54

SHA1
a128fb7a05965c1a9913c6f5e419e6c4c0a7d2fa

SHA256
27abd2a4fb1bf66add60221b52d061bbe24d2d21e13600725ff7a5c6c777b504

SHA512
e4ff8216c65110a9d156f37c2062acb53a72daa8af12dfc24278920d9e1a4083a81b1446759df75405b2da34c7bfb1afc33184feedd0aee4ed73f79fcbb1a8a1

Download Submit
\Users\Admin\AppData\Local\Temp\nsu8345.tmp\System.dll
Filesize
67KB

MD5
30b81ec5e3c42d640a41142d77d6b9dd

SHA1
e80da338f190d6cf58ebcfb3c33902bcc625803e

SHA256
01ed4a6c53f05fcd583f9c5afc11022143edb99417d842b8bf5e95b7e74fdf13

SHA512
fb638df4e85dcb83118f8a422196ac9d6d4b31650864c27ebc6e820ba0106152fddaecd213206784f7d14a6963e80465d9dca0a224e1bc895a48fc7ddef0935b

Download Submit
\Users\Admin\AppData\Local\Temp\nsu8345.tmp\System.dll
Filesize
67KB

MD5
30b81ec5e3c42d640a41142d77d6b9dd

SHA1
e80da338f190d6cf58ebcfb3c33902bcc625803e

SHA256
01ed4a6c53f05fcd583f9c5afc11022143edb99417d842b8bf5e95b7e74fdf13

SHA512
fb638df4e85dcb83118f8a422196ac9d6d4b31650864c27ebc6e820ba0106152fddaecd213206784f7d14a6963e80465d9dca0a224e1bc895a48fc7ddef0935b

Download Submit
memory/556-64-0x0000000010000000-0x0000000010015000-memory.dmp

Filesize
84KB

Download
memory/556-63-0x0000000000530000-0x000000000055E000-memory.dmp

Filesize
184KB

Download
memory/556-54-0x0000000075551000-0x0000000075553000-memory.dmp

Filesize
8KB

Download
memory/556-74-0x0000000000530000-0x000000000055E000-memory.dmp

Filesize
184KB

Download
memory/556-75-0x0000000010000000-0x0000000010015000-memory.dmp

Filesize
84KB

Download
memory/556-56-0x0000000010000000-0x0000000010015000-memory.dmp

Filesize
84KB

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memory/1264-65-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

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memory/1264-66-0x00000000001C0000-0x00000000001CF000-memory.dmp

Filesize
60KB

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memory/1264-58-0x0000000000000000-mapping.dmp

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memory/1684-68-0x0000000000000000-mapping.dmp

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memory/1684-72-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

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