ramnit | fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

Analysis

max time kernel
125s
max time network
144s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
07-05-2023 07:41

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General

Target

download.exe
Size

55KB
MD5

ff5e1f27193ce51eec318714ef038bef
SHA1

b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256

fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512

c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
SSDEEP

1536:Q+hzRsibKplyXTq8OGRnsPFG+RODTb7MXL5uXZnzE:bROzoTq0+RO7IwnY

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 1 IoCs

Processes:

DesktopLayer.exe

pid process

2024 DesktopLayer.exe
Loads dropped DLL 1 IoCs

Processes:

download.exe

pid process

832 download.exe

pid	process
2024	DesktopLayer.exe

pid	process
832	download.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
\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/832-59-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2024-62-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

Processes:

download.exe

description	ioc	process
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	download.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	download.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px62E9.tmp	download.exe

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-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "2"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{DE92DFD1-ED1F-11ED-B624-DEF2FB1055A6} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\SearchScopes	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "390260672"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2961826002-3968192592-354541192-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

DesktopLayer.exe

pid process

2024 DesktopLayer.exe
2024 DesktopLayer.exe
2024 DesktopLayer.exe
2024 DesktopLayer.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid process

1692 iexplore.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid process

1692 iexplore.exe
1692 iexplore.exe
1764 IEXPLORE.EXE
1764 IEXPLORE.EXE
1764 IEXPLORE.EXE
1764 IEXPLORE.EXE

pid	process
2024	DesktopLayer.exe
2024	DesktopLayer.exe
2024	DesktopLayer.exe
2024	DesktopLayer.exe

pid	process
1692	iexplore.exe

pid	process
1692	iexplore.exe
1692	iexplore.exe
1764	IEXPLORE.EXE
1764	IEXPLORE.EXE
1764	IEXPLORE.EXE
1764	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

download.exeDesktopLayer.exeiexplore.exe

description	pid	process	target process
PID 832 wrote to memory of 2024	832	download.exe	DesktopLayer.exe
PID 832 wrote to memory of 2024	832	download.exe	DesktopLayer.exe
PID 832 wrote to memory of 2024	832	download.exe	DesktopLayer.exe
PID 832 wrote to memory of 2024	832	download.exe	DesktopLayer.exe
PID 2024 wrote to memory of 1692	2024	DesktopLayer.exe	iexplore.exe
PID 2024 wrote to memory of 1692	2024	DesktopLayer.exe	iexplore.exe
PID 2024 wrote to memory of 1692	2024	DesktopLayer.exe	iexplore.exe
PID 2024 wrote to memory of 1692	2024	DesktopLayer.exe	iexplore.exe
PID 1692 wrote to memory of 1764	1692	iexplore.exe	IEXPLORE.EXE
PID 1692 wrote to memory of 1764	1692	iexplore.exe	IEXPLORE.EXE
PID 1692 wrote to memory of 1764	1692	iexplore.exe	IEXPLORE.EXE
PID 1692 wrote to memory of 1764	1692	iexplore.exe	IEXPLORE.EXE

C:\Users\Admin\AppData\Local\Temp\download.exe
"C:\Users\Admin\AppData\Local\Temp\download.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:832

C:\Program Files (x86)\Microsoft\DesktopLayer.exe
"C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2024

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe"
3⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1692

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1692 CREDAT:275457 /prefetch:2
4⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1764

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

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\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
Filesize
62KB

MD5
b5fcc55cffd66f38d548e8b63206c5e6

SHA1
79db08ababfa33a4f644fa8fe337195b5aba44c7

SHA256
7730df1165195dd5bb6b40d6e519b4ce07aceb03601a77bca6535d31698d4ca1

SHA512
aaa17175e90dbca04f0fa753084731313e70119fef7d408b41ff4170116ab24eaee0bd05dca2cc43464b1ee920819e5ce6f6e750d97e3c4fc605f01e7ff9c649

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
Filesize
62KB

MD5
3ac860860707baaf32469fa7cc7c0192

SHA1
c33c2acdaba0e6fa41fd2f00f186804722477639

SHA256
d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904

SHA512
d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize
344B

MD5
15b86eae3638caecc2e1723802f92fc0

SHA1
b3209d8bb286cc97823e6ec235728f3f563daa47

SHA256
b2da083f6040bab810bba25abfaa5c2b5267a515263497df0f5e7b1d291672d3

SHA512
632e69c6e79848e2689a4d6709cc2109cf170414afc3448bf3b05f8c2058556f369444bf7d7528568417c11d0a140476290a98d0910485b4d586d239f1deda25

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize
344B

MD5
64fe31a27b22e233c266cf56e7bdd95b

SHA1
b7398dd86f359376607a85c03bc0784ed6f3c92c

SHA256
061f38303716b0c010a0cb721ee52f09dc819595253de9773a45647b4f65c1a3

SHA512
b543b357f09d52158b97fc521ca5abc84dfd8eff88f9c3f2e271db96448be32f3d33d3d445929e8f76d6edd6b0c97ba3a6609fd9b65acd3f9ab5466da6ff8bd1

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize
344B

MD5
0934e547a515b69a436bf08f3e94f999

SHA1
5c625d3d7812030294d6041d1922a81592f50608

SHA256
0190908aeeb4b427de05a0edc1f32e6261b7ec1ce2618eb75d87ff8e0fc83bf3

SHA512
a4f22c79f18fdc3c2eb55df3db9cbb70cb43da3d76952ba7944cba9d75ec21dcc79f2fe9aa7ec7a4ff43b75fbd49b42a7b428983cecfb11661c9ccd4045def89

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize
344B

MD5
34861366bba09b38a2d9f05f91c4d039

SHA1
a08f88441861089f458700c0295aaf8b2208aace

SHA256
4aea798674c7851db1b1112e2d72bf3816e6ffe2126166ad09cd75f7c3cfc584

SHA512
f32738ab6f685ca758c6197aebf16bf37842aac5cfb651940331403b4dee06c11eebd1a63c708af1afaf7a10d75b01b6ace9f1f4914c09c30abffb3826e5b5aa

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize
344B

MD5
4d7b91a2c609b9678c065d82cf53d4da

SHA1
114b832c8fc3b5fda0dcffd1d9933571a4de534e

SHA256
4e1ba4f4901c82ecb05fc63e2294b3d464512656ccaae76a5de1a11805815f29

SHA512
93db76bf8f5184e2ed7ef51367f5288b5f9f194ff961aad53f4844c251f2b5d90e3fc87c94af1679aa35fd478d066ac9cbee72f3be69b557b49f874445f60694

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\QHKTFKHM\suggestions[1].en-US
Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab87C.tmp
Filesize
61KB

MD5
fc4666cbca561e864e7fdf883a9e6661

SHA1
2f8d6094c7a34bf12ea0bbf0d51ee9c5bb7939a5

SHA256
10f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b

SHA512
c71f54b571e01f247f072be4bbebdf5d8410b67eb79a61e7e0d9853fe857ab9bd12f53e6af3394b935560178107291fc4be351b27deb388eba90ba949633d57d

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarC2C.tmp
Filesize
164KB

MD5
4ff65ad929cd9a367680e0e5b1c08166

SHA1
c0af0d4396bd1f15c45f39d3b849ba444233b3a2

SHA256
c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6

SHA512
f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\ABM3W5G6.txt
Filesize
604B

MD5
94de7a856a65d0152f6ccaa3582f4786

SHA1
e9de9a753c18eb039e2c21f3ef5f969e5ac6f05a

SHA256
85cb96a03d931304fc50abdbe5904637873f6f97f9829034fea266a0ac100957

SHA512
6d790581bd0b57279ea5d21538878289a41eb7b6be6eafd0a5fe679c6a0f75b87ed5c5b2d27dd8e1c077d7833c7fce8cad0d74a4cd12970b0532a2cefed31398

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

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/832-59-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2024-62-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2024-61-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download