ramnit | fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

Analysis

max time kernel
134s
max time network
136s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
31-05-2023 11:45

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General

Target

RemoteUsbMapSrv.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

1576 DesktopLayer.exe
Loads dropped DLL 1 IoCs

Processes:

RemoteUsbMapSrv.exe

pid process

1604 RemoteUsbMapSrv.exe

pid	process
1576	DesktopLayer.exe

pid	process
1604	RemoteUsbMapSrv.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1604-58-0x0000000000400000-0x000000000042E000-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/1576-62-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

Processes:

RemoteUsbMapSrv.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Microsoft\px56E.tmp	RemoteUsbMapSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	RemoteUsbMapSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	RemoteUsbMapSrv.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-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{644E0221-FFB9-11ED-B4C4-F2A4F945A9C1} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "392305699"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\SearchScopes	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "2"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

DesktopLayer.exe

pid process

1576 DesktopLayer.exe
1576 DesktopLayer.exe
1576 DesktopLayer.exe
1576 DesktopLayer.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid process

864 iexplore.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid process

864 iexplore.exe
864 iexplore.exe
1448 IEXPLORE.EXE
1448 IEXPLORE.EXE
1448 IEXPLORE.EXE
1448 IEXPLORE.EXE

pid	process
1576	DesktopLayer.exe
1576	DesktopLayer.exe
1576	DesktopLayer.exe
1576	DesktopLayer.exe

pid	process
864	iexplore.exe

pid	process
864	iexplore.exe
864	iexplore.exe
1448	IEXPLORE.EXE
1448	IEXPLORE.EXE
1448	IEXPLORE.EXE
1448	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

RemoteUsbMapSrv.exeDesktopLayer.exeiexplore.exe

description	pid	process	target process
PID 1604 wrote to memory of 1576	1604	RemoteUsbMapSrv.exe	DesktopLayer.exe
PID 1604 wrote to memory of 1576	1604	RemoteUsbMapSrv.exe	DesktopLayer.exe
PID 1604 wrote to memory of 1576	1604	RemoteUsbMapSrv.exe	DesktopLayer.exe
PID 1604 wrote to memory of 1576	1604	RemoteUsbMapSrv.exe	DesktopLayer.exe
PID 1576 wrote to memory of 864	1576	DesktopLayer.exe	iexplore.exe
PID 1576 wrote to memory of 864	1576	DesktopLayer.exe	iexplore.exe
PID 1576 wrote to memory of 864	1576	DesktopLayer.exe	iexplore.exe
PID 1576 wrote to memory of 864	1576	DesktopLayer.exe	iexplore.exe
PID 864 wrote to memory of 1448	864	iexplore.exe	IEXPLORE.EXE
PID 864 wrote to memory of 1448	864	iexplore.exe	IEXPLORE.EXE
PID 864 wrote to memory of 1448	864	iexplore.exe	IEXPLORE.EXE
PID 864 wrote to memory of 1448	864	iexplore.exe	IEXPLORE.EXE

C:\Users\Admin\AppData\Local\Temp\RemoteUsbMapSrv.exe
"C:\Users\Admin\AppData\Local\Temp\RemoteUsbMapSrv.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1604

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:1576

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:864

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:864 CREDAT:275457 /prefetch:2
4⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1448

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\MetaData\94308059B57B3142E455B38A6EB92015
Filesize
344B

MD5
37506f341f675b5a5e24027932013942

SHA1
47c474cbfe3e8228d46749293792980348875406

SHA256
4cf564165c9637e306dff78c1428fdc1f2b8c2c7cfb04f62b7f57111e01b09a7

SHA512
853189bb4dbec3049264c9af79c42d20166e281ed0f47d9a08180301c2a1e7198491def5ac83eaffc124b4397dae08d645f364b4acf0d7ff4a004f82c4ab3c91

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

MD5
0c6453c1674cfa9532c1bffc6345976a

SHA1
3469797214987ab7944ee6080bd368ca53567d38

SHA256
368bb76be35942fa107763776c2bd66043ca33c1705b4199e7c60b76ff862e66

SHA512
2c9ac898e49ed771c4911727394d074b18680759bc1fe3a065842553e2c53558b9c2687248e70ea273e5f1f4622f51364df1ae57527e0b6044125c112f30d51a

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

MD5
f1b04e10f11736df1ed7356aa3fe7675

SHA1
21a6e549824c577daf61e4676cb6a24ad3c16813

SHA256
202790ce418b98a54d91cd4b72cee0f642a71c90ce0df212db231ca28f8d9fa2

SHA512
7b3cf2258ca9312662a201cd4b8bfeab599f8e5a736375dfe28d3e387ef7c42f99e9193e75cb4db807b569a1ca1ccab5565ba4b5fa28ab0a2d61a9fb44be3a2a

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

MD5
3eaf135f2a3f8478e221ae42b5aaa829

SHA1
679397f5d4301df0d058d0393c9709da1fcc4e92

SHA256
f4c450151cc4a93eeb8b1fca9acb1719c94d6d3b3b65c619baf8c033a6e57e13

SHA512
d427ed0598adc860f2bd2a0ba47a56793a696a43ddbdf2549e7e80595d0f89c5879e3f1fdef2fa37635812c56e50699f5d8f114ef914fa7ef8383f0f9e68fc62

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

MD5
c8654d065770ec0a9720220f99cab1a5

SHA1
a7fe6df0e15877ab3cd9a31d7a5a0868ee1b0b54

SHA256
d95a79b207e40260ef03a80cad1acfa81e713a91aaba691532f50c8efc13891a

SHA512
52b85a32cd0cc9478733830b01a7262697f7e8cdbee1ca99d8ed1550bc449d1c7c33a8ed834b35a0e4e91a727656323775acd509233c012fcf970fe313df546e

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

MD5
f4b11e65a1ee4ae2deb8ce3f40d31f05

SHA1
eca10e24542ec57b6ee323b1a1e49701b43ef520

SHA256
8b49a62347a6f1584b4022455be5a8c7a7cd4bc38d46a1377d4e527970127752

SHA512
a5fb378e4732ef44e95af531ca4def69fc2db05a1b59329257913f6ccb8b8df247712b7439c8a6e89729b20cc28412cc6c2cdb4c118d375c27ffdd89b6f2f4a6

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

MD5
6645b8e6786b42d342b21d9aa900eea9

SHA1
6816016d4f78a67edb82725e7a3fcf8fa0d5b3de

SHA256
6959490b331de2407ad6aef2e6b1bb9812aa5a1ff05f4854c417f38f88937316

SHA512
8709ddeeed18d93ada7b7f37e3691b838b73ba638fb0538b1675d7d2fa210505b10319ca956e434c2f03f3c5a42601e8ae4aa3690355365618e2cb26859ce177

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

MD5
8c47fd70d94a632f209cc3b7c48a0c83

SHA1
2aeb1514471f2360fc826ee9d9151c4c38228a14

SHA256
b5a77b508625b983a60a56680e0baba110785c578b070adffc6e78d4e2bfbfa0

SHA512
d3861e6b3cfc492507482ec83221b53db9393aaf363f00aaa78aaf71aaf00c069a3fe366c4c8ad5047f5f659034150a7a337ebf2696c528407fd9845d70f2274

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

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab3A64.tmp
Filesize
61KB

MD5
fc4666cbca561e864e7fdf883a9e6661

SHA1
2f8d6094c7a34bf12ea0bbf0d51ee9c5bb7939a5

SHA256
10f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b

SHA512
c71f54b571e01f247f072be4bbebdf5d8410b67eb79a61e7e0d9853fe857ab9bd12f53e6af3394b935560178107291fc4be351b27deb388eba90ba949633d57d

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab3B92.tmp
Filesize
62KB

MD5
3ac860860707baaf32469fa7cc7c0192

SHA1
c33c2acdaba0e6fa41fd2f00f186804722477639

SHA256
d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904

SHA512
d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar3BB4.tmp
Filesize
164KB

MD5
4ff65ad929cd9a367680e0e5b1c08166

SHA1
c0af0d4396bd1f15c45f39d3b849ba444233b3a2

SHA256
c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6

SHA512
f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\P59P23OI.txt
Filesize
607B

MD5
8ad814e288a9392c7913cee28d4aa700

SHA1
c735e28a080ed5cf43b9e8d81e59cc5a85efdd3d

SHA256
896a6886273723618b7165fb8d2aa7b506c7d6c9468ccd86a3f3827e4a2e1511

SHA512
94591c2cadabbadf770faef3ef32f7abce29d3dd5702cefb2881b642175f76a4a953f89b98c0da3fc24f981fc77431471c88d108607f83f182ca3f698ffd6f9c

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

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/1576-62-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1576-61-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1604-58-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download