ramnit | 6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5

Analysis

max time kernel
144s
max time network
205s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
23-11-2022 21:28

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General

Target

6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5.exe
Size

20.6MB
MD5

9de3bf0958eaeefc7ff256623ad5e00f
SHA1

b7480964442bf7ae4f0477568eb7a90a07583485
SHA256

6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5
SHA512

67f08ebba8602a1de7f4dbce6d963803eae3a3b586b213b84d96d31681267157ac99dac5cd94aca251fbfa67b58b307cf48e0da464a69bce4cca5f3b4a0b8589
SSDEEP

393216:tzP/iz32MT6lcjlFoMAzD4dKfUjjcIwfhbWNDFiLb1eqAHJZNfS5yFVCj:9W2MT6lcpFod0dsUHibKFOb4fHJPtV8

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:

6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5Srv.exeDesktopLayer.exe

pid process

1312 6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5Srv.exe
520 DesktopLayer.exe

pid	process
1312	6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5Srv.exe
520	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\6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5Srv.exe	upx
C:\Users\Admin\AppData\Local\Temp\6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5Srv.exe	upx
C:\Users\Admin\AppData\Local\Temp\6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5Srv.exe	upx
\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
behavioral1/memory/1312-65-0x0000000000400000-0x000000000042E000-memory.dmp	upx
C:\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
C:\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
behavioral1/memory/520-69-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Loads dropped DLL 5 IoCs

Processes:

6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5.exe6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5Srv.exe

pid	process
1300	6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5.exe
1300	6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5.exe
1300	6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5.exe
1312	6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5Srv.exe
1300	6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5.exe

Drops file in Program Files directory 3 IoCs

Processes:

6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5Srv.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Microsoft\px36B.tmp	6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5Srv.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-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\SearchScopes	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "2"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{BFEA6A30-6B97-11ED-9B00-42F1C931D1AB} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "376018478"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

DesktopLayer.exe

pid process

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

Processes:

iexplore.exe

pid process

1640 iexplore.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid process

1640 iexplore.exe
1640 iexplore.exe
896 IEXPLORE.EXE
896 IEXPLORE.EXE
896 IEXPLORE.EXE
896 IEXPLORE.EXE

pid	process
520	DesktopLayer.exe
520	DesktopLayer.exe
520	DesktopLayer.exe
520	DesktopLayer.exe

pid	process
1640	iexplore.exe

pid	process
1640	iexplore.exe
1640	iexplore.exe
896	IEXPLORE.EXE
896	IEXPLORE.EXE
896	IEXPLORE.EXE
896	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5.exe6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5Srv.exeDesktopLayer.exeiexplore.exe

description	pid	process	target process
PID 1300 wrote to memory of 1312	1300	6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5.exe	6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5Srv.exe
PID 1300 wrote to memory of 1312	1300	6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5.exe	6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5Srv.exe
PID 1300 wrote to memory of 1312	1300	6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5.exe	6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5Srv.exe
PID 1300 wrote to memory of 1312	1300	6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5.exe	6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5Srv.exe
PID 1312 wrote to memory of 520	1312	6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5Srv.exe	DesktopLayer.exe
PID 1312 wrote to memory of 520	1312	6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5Srv.exe	DesktopLayer.exe
PID 1312 wrote to memory of 520	1312	6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5Srv.exe	DesktopLayer.exe
PID 1312 wrote to memory of 520	1312	6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5Srv.exe	DesktopLayer.exe
PID 520 wrote to memory of 1640	520	DesktopLayer.exe	iexplore.exe
PID 520 wrote to memory of 1640	520	DesktopLayer.exe	iexplore.exe
PID 520 wrote to memory of 1640	520	DesktopLayer.exe	iexplore.exe
PID 520 wrote to memory of 1640	520	DesktopLayer.exe	iexplore.exe
PID 1640 wrote to memory of 896	1640	iexplore.exe	IEXPLORE.EXE
PID 1640 wrote to memory of 896	1640	iexplore.exe	IEXPLORE.EXE
PID 1640 wrote to memory of 896	1640	iexplore.exe	IEXPLORE.EXE
PID 1640 wrote to memory of 896	1640	iexplore.exe	IEXPLORE.EXE

C:\Users\Admin\AppData\Local\Temp\6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5.exe
"C:\Users\Admin\AppData\Local\Temp\6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1300

C:\Users\Admin\AppData\Local\Temp\6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5Srv.exe
C:\Users\Admin\AppData\Local\Temp\6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5Srv.exe
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1312

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:520

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:1640

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1640 CREDAT:275457 /prefetch:2
5⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:896

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

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\6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\YO9LQEBZ.txt

Filesize
608B

MD5
1e9a0268d3842ba595f77429bc233498

SHA1
dd54f68800eb478619724aed8c55ebf9624e410f

SHA256
5f37d813a0ede934d4a7bba993e37262c10cbf7633e20061addf77289a863b7c

SHA512
02a564e898199158a8e18125e6d3df09c1fa6177b27177755306ffce5d64d5d2651e0bf211b58f3ac89420c1d3d45bcbc5c8e59af9310fcede5a24b2940d42c0

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\6f5fd7b4ad87732c59917afca6f9e2b1de56a5252f8f55aec05c39fd5756f9b5Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
\Users\Admin\AppData\Local\Temp\nsj2E0.tmp\BrandingURL.dll

Filesize
4KB

MD5
71c46b663baa92ad941388d082af97e7

SHA1
5a9fcce065366a526d75cc5ded9aade7cadd6421

SHA256
bb2b9c272b8b66bc1b414675c2acba7afad03fff66a63babee3ee57ed163d19e

SHA512
5965bd3f5369b9a1ed641c479f7b8a14af27700d0c27d482aa8eb62acc42f7b702b5947d82f9791b29bcba4d46e1409244f0a8ddce4ec75022b5e27f6d671bce

Download Submit
\Users\Admin\AppData\Local\Temp\nsj2E0.tmp\System.dll

Filesize
67KB

MD5
c965c9cc7185937b84ca3738744d0d78

SHA1
cefe19f7c6b621bb621a4623c3c02f55dbb7ad30

SHA256
076da50c9f6fec49abee648975bf2307b97e87e6258008119894714cc0cb5891

SHA512
d1d9a74b46ee2b35a0d075a1466758ec086f27519db767d6d9f8fd6b2efdbb8ee1cad10e63668b861b5692af51d4427e494cb1cda78fbc3e8fe20adb339503c1

Download Submit
\Users\Admin\AppData\Local\Temp\nsj2E0.tmp\System.dll

Filesize
67KB

MD5
c965c9cc7185937b84ca3738744d0d78

SHA1
cefe19f7c6b621bb621a4623c3c02f55dbb7ad30

SHA256
076da50c9f6fec49abee648975bf2307b97e87e6258008119894714cc0cb5891

SHA512
d1d9a74b46ee2b35a0d075a1466758ec086f27519db767d6d9f8fd6b2efdbb8ee1cad10e63668b861b5692af51d4427e494cb1cda78fbc3e8fe20adb339503c1

Download Submit
memory/520-63-0x0000000000000000-mapping.dmp

Download
memory/520-69-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1300-54-0x0000000075811000-0x0000000075813000-memory.dmp

Filesize
8KB

Download
memory/1300-70-0x0000000010000000-0x0000000010015000-memory.dmp

Filesize
84KB

Download
memory/1300-71-0x0000000002CA0000-0x0000000002CCE000-memory.dmp

Filesize
184KB

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memory/1312-65-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

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memory/1312-57-0x0000000000000000-mapping.dmp

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