ramnit | 1bc62e0f8596d2a7062e4a133ee614700420abfd1963f345bb00efc4d48402bd

Analysis

max time kernel
137s
max time network
135s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
02-01-2025 09:21

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General

Target

1bc62e0f8596d2a7062e4a133ee614700420abfd1963f345bb00efc4d48402bd.dll
Size

1.6MB
MD5

7ea754bf0ff4157e816924af2ba96c02
SHA1

5c51e882982d9e68c3483c94be986e1306662f44
SHA256

1bc62e0f8596d2a7062e4a133ee614700420abfd1963f345bb00efc4d48402bd
SHA512

755c530841e153bba3d67369862955cf6bd8892b3db6c91ed2ee19a5534030740c81c7262edeef7d21f4b396380b45e47665b4c4349eeb685524fa669db66b5b
SSDEEP

24576:L8vc0VJnXtBcaW+KpPrCnp6ZlR1NKOCfBNVlKfyiMp/WewR+YBi4Zy:qc0VJj4jKCD1Noz1p/aZy

Score

10^/10

ramnit banker discovery 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
Ramnit family
ramnit

Executes dropped EXE 2 IoCs

pid	Process
2348	rundll32Srv.exe
2976	DesktopLayer.exe

Loads dropped DLL 2 IoCs

pid	Process
1636	rundll32.exe
2348	rundll32Srv.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32Srv.exe	rundll32.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000c000000012262-3.dat	upx
behavioral1/memory/2348-9-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2348-12-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2976-23-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2976-22-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\pxBE50.tmp	rundll32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32Srv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DesktopLayer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 28 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{F01DFBB1-C8EA-11EF-80AB-7A300BFEC721} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\SearchScopes	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "441971555"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "2"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2976	DesktopLayer.exe
2976	DesktopLayer.exe
2976	DesktopLayer.exe
2976	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2136	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2136	iexplore.exe
2136	iexplore.exe
2452	IEXPLORE.EXE
2452	IEXPLORE.EXE
2452	IEXPLORE.EXE
2452	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2564 wrote to memory of 1636	2564	rundll32.exe	30
PID 2564 wrote to memory of 1636	2564	rundll32.exe	30
PID 2564 wrote to memory of 1636	2564	rundll32.exe	30
PID 2564 wrote to memory of 1636	2564	rundll32.exe	30
PID 2564 wrote to memory of 1636	2564	rundll32.exe	30
PID 2564 wrote to memory of 1636	2564	rundll32.exe	30
PID 2564 wrote to memory of 1636	2564	rundll32.exe	30
PID 1636 wrote to memory of 2348	1636	rundll32.exe	31
PID 1636 wrote to memory of 2348	1636	rundll32.exe	31
PID 1636 wrote to memory of 2348	1636	rundll32.exe	31
PID 1636 wrote to memory of 2348	1636	rundll32.exe	31
PID 2348 wrote to memory of 2976	2348	rundll32Srv.exe	32
PID 2348 wrote to memory of 2976	2348	rundll32Srv.exe	32
PID 2348 wrote to memory of 2976	2348	rundll32Srv.exe	32
PID 2348 wrote to memory of 2976	2348	rundll32Srv.exe	32
PID 2976 wrote to memory of 2136	2976	DesktopLayer.exe	33
PID 2976 wrote to memory of 2136	2976	DesktopLayer.exe	33
PID 2976 wrote to memory of 2136	2976	DesktopLayer.exe	33
PID 2976 wrote to memory of 2136	2976	DesktopLayer.exe	33
PID 2136 wrote to memory of 2452	2136	iexplore.exe	34
PID 2136 wrote to memory of 2452	2136	iexplore.exe	34
PID 2136 wrote to memory of 2452	2136	iexplore.exe	34
PID 2136 wrote to memory of 2452	2136	iexplore.exe	34

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1bc62e0f8596d2a7062e4a133ee614700420abfd1963f345bb00efc4d48402bd.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2564
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\1bc62e0f8596d2a7062e4a133ee614700420abfd1963f345bb00efc4d48402bd.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1636
- - C:\Windows\SysWOW64\rundll32Srv.exe
    C:\Windows\SysWOW64\rundll32Srv.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2348
  - - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
      "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:2976
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:2136
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2136 CREDAT:275457 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:2452

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
361f56eaddcca9fade9388cf26cc76d3

SHA1
c19c6dfa91f5357e31d295631e696a01f6d54bcb

SHA256
d480f56dbebd7ba050e02114ec7b8bbe673f62c31cbc7eecfbf4aaa50fb9db32

SHA512
ee688acc9adaf69c913e1c7acc8dc94d807d348d5477f6cfb1faec5e67efab75fd6b16bb59f77dc5ce3d06ea6e86f6d0596ce0d25dc74cd018384737277befec

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

Filesize
342B

MD5
8c9245d8ec9b6fa58896a62ce4b5ec15

SHA1
427f3466a2fc52d7cd58ad5010b1225d24ac5376

SHA256
83a9a2645dd5318c3600e6a670cda4e61364934d8b6d641170e2b15085ebf402

SHA512
b81f7e7db75b626054498f6b82c13e703ff5a9ca11063de116046a6fe43b22e9bc5b547f55b42bb9194c33988d86b4fba3c774db45d8a4f68bf8f20a66cad0aa

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

Filesize
342B

MD5
3db430ab45a5edb290c192329c088a51

SHA1
fca31c0a0a334e6d1f13638180925b38cd8247bf

SHA256
6537320c7a863915a032d99fbc57bd2208b9d585f9130735f96242ee7b75010a

SHA512
3501bb80075894873e900dadb79757d7d1c78e30a54b38a4c63d9aed95061a280fc9aea09a9130a9ad83aaf47de77e96b4cb505404cc73a6dd9f5e0dea80c781

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

Filesize
342B

MD5
8fb30ccadd309097469e89b2dd18e728

SHA1
fd00de8401b3c7ac9ece87b738de24e6a58a0bb0

SHA256
71bdfacad7d60c20ad0aad82c618ac72ed6f5d7f6314bf201c3212660cb0a1de

SHA512
878ee9a6ffe6892da21ae8531790899c3418534fa7b66a72bd52cf60d189107a6015728a5a622a660ea5a481c21cdb93331d704803b128cd88775a5287d07734

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

Filesize
342B

MD5
c9cfce991147a45783ea599cb9e8fec2

SHA1
655cc7555e5b288104e68f9d7c3a93ce3a7fce8f

SHA256
b8a8f16233dce3afeb560350a5c5d6cf4ded4a0b32e42443c94865316bac79ca

SHA512
cf48527f3a36c356be54431565b50970c22bdb76cb73275869b59a09a7fbbd540d4ef68e1cf062659d21020dcdb5f87cc89dbb2f983db7e8880d1b8fb14ad246

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

Filesize
342B

MD5
a0791d3f3038b95511e6054b5ddafaea

SHA1
140193d94959f9f9fb82ce91b4808cd48b769404

SHA256
dc9a148b232497bfbf6ee93bd0d00ac2b709596447ab74cb8900180f91bfce9a

SHA512
429f0ebb07799e9814a435940330befaa1414b865fc2468148c747c4fe1a40e1e88074d1b5a427c1faaab717f80e3613f50c798efc5c7540de6adc057eac94f8

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

Filesize
342B

MD5
c92bbadee65442c76dee87dca943da14

SHA1
2361126d7781c1c993a6e9bd027d47e1f989437e

SHA256
49c68a8834ec71c7de8bafe67cd6674fc725e36a85d7ba1aba4b9834be98a9f3

SHA512
79d18726b0bd389417b266e0175e9ce3d08febed304456dd99dfe9bee6281fe76bdb77c7a280f039fc526743b787ab6d441dfb90e7bf0aaa59aadfd875119e95

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

Filesize
342B

MD5
f73153d3fdf5778fe5fcf1d9af204f4b

SHA1
d43a53cb84cbe4405505bf4649544e15d63f63aa

SHA256
9c33bc1cc5d489f9a4838c4617e41df5305633a5f887d09805bc9071cf1483a2

SHA512
c1e263afc85a498d7c14cbc0ec158ec5e069fb918b90c16a122d701d80421ca5aa27059bc3432c08d1033513655fca89a9e960b16e8d8a6291944205bc1193a8

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

Filesize
342B

MD5
7fbbd83367cdeeb2f1f66b84ba9efbee

SHA1
4799403b585a9a5db9c581b0bfc2e26425b9dcb3

SHA256
b5a12a551e0dcddf91304d503db7e51e3cbe3a927c405fee730b96d4bdb0a411

SHA512
a440a839fe8cdca015aed308b0b93b82e8617ebd6b2bbc41492bec2ca955215b99386074406e2d4224619a57dc5c515bbd233cf05062c2646befcacaa64d3c29

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

Filesize
342B

MD5
c3bb0e9d5acfee8b4b4c803c8fb0f8ff

SHA1
9b29c8b88b06242774045eb026c44ebe03b83815

SHA256
bc258a70d6447a71f82b0cb42a205d476f2d0f63c263bae786f4c7a664c97648

SHA512
bd4235602670224c0630e0e3f140151b9c07a4e8f5fd1937277e2aa7af3cad0088ef2806ab4e839cf59da90423b3a6dd0b556a25abc1d749c7e721a2ae5c71a2

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

Filesize
342B

MD5
3b3a4b9190ab1768705e1bf30c500923

SHA1
c7c60e3928386deb0e831b208c6e4993a3abe938

SHA256
b37699c296f0188d61df5d2057ac91dec81c4a1f5c8007bda02fed424e253dac

SHA512
2664cd7666329612cb00bc724e00e0c428dd4783123f67f635243ca00aadd5921b8256b1d9ab8f7920158237443c34038c89358d8348bc6b153ebe888d1f1fff

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabE1D9.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarE2E6.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
\Windows\SysWOW64\rundll32Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/1636-1-0x0000000010000000-0x000000001019D000-memory.dmp

Filesize
1.6MB

Download
memory/1636-6-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1636-5-0x0000000010000000-0x000000001019D000-memory.dmp

Filesize
1.6MB

Download
memory/1636-0-0x0000000010000000-0x000000001019D000-memory.dmp

Filesize
1.6MB

Download
memory/2348-11-0x0000000000230000-0x000000000023F000-memory.dmp

Filesize
60KB

Download
memory/2348-12-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2348-16-0x0000000000240000-0x000000000026E000-memory.dmp

Filesize
184KB

Download
memory/2348-9-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2976-23-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2976-22-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2976-21-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download