ramnit | ffb859eeebd17e4450d013e70171d89e3475707fe4b0746c12faa41944796c61

Analysis

max time kernel
117s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2024 21:36

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General

Target

ffb859eeebd17e4450d013e70171d89e3475707fe4b0746c12faa41944796c61N.exe
Size

1.0MB
MD5

0d82187d8966ec5e2f387d6c278b5280
SHA1

3bbd7a30bc98009ba45f6850caf5bf988885c314
SHA256

ffb859eeebd17e4450d013e70171d89e3475707fe4b0746c12faa41944796c61
SHA512

e235eec79db5ce2f6f43303c61d97d8a3ad5d18d253c46dc2ac9d9dd71d4310edc9384e3dd6fff86795e5510651dc7387b3e2e6eacc9f03a002a56cb6ef3b0b0
SSDEEP

24576:yGt+igEhxI9qg8RVMdEU5vNYGp7oS7C+/kY:MWsqjzMdNNY78

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
1884	ffb859eeebd17e4450d013e70171d89e3475707fe4b0746c12faa41944796c61NSrv.exe
436	DesktopLayer.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000023bab-3.dat	upx
behavioral2/memory/1884-5-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/436-14-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/436-10-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/1884-8-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/436-16-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	ffb859eeebd17e4450d013e70171d89e3475707fe4b0746c12faa41944796c61NSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	ffb859eeebd17e4450d013e70171d89e3475707fe4b0746c12faa41944796c61NSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\pxAC1E.tmp	ffb859eeebd17e4450d013e70171d89e3475707fe4b0746c12faa41944796c61NSrv.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	ffb859eeebd17e4450d013e70171d89e3475707fe4b0746c12faa41944796c61N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ffb859eeebd17e4450d013e70171d89e3475707fe4b0746c12faa41944796c61NSrv.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 32 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1478821812"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "442013969"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31152094"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31152094"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1478821812"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{77135C95-C3D1-11EF-AEE2-EE8B2F3CE00B} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1316945989"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31152094"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31152094"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1316945989"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
436	DesktopLayer.exe
436	DesktopLayer.exe
436	DesktopLayer.exe
436	DesktopLayer.exe
436	DesktopLayer.exe
436	DesktopLayer.exe
436	DesktopLayer.exe
436	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4848	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4848	iexplore.exe
4848	iexplore.exe
2364	IEXPLORE.EXE
2364	IEXPLORE.EXE
2364	IEXPLORE.EXE
2364	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4988 wrote to memory of 1884	4988	ffb859eeebd17e4450d013e70171d89e3475707fe4b0746c12faa41944796c61N.exe	84
PID 4988 wrote to memory of 1884	4988	ffb859eeebd17e4450d013e70171d89e3475707fe4b0746c12faa41944796c61N.exe	84
PID 4988 wrote to memory of 1884	4988	ffb859eeebd17e4450d013e70171d89e3475707fe4b0746c12faa41944796c61N.exe	84
PID 1884 wrote to memory of 436	1884	ffb859eeebd17e4450d013e70171d89e3475707fe4b0746c12faa41944796c61NSrv.exe	85
PID 1884 wrote to memory of 436	1884	ffb859eeebd17e4450d013e70171d89e3475707fe4b0746c12faa41944796c61NSrv.exe	85
PID 1884 wrote to memory of 436	1884	ffb859eeebd17e4450d013e70171d89e3475707fe4b0746c12faa41944796c61NSrv.exe	85
PID 436 wrote to memory of 4848	436	DesktopLayer.exe	86
PID 436 wrote to memory of 4848	436	DesktopLayer.exe	86
PID 4848 wrote to memory of 2364	4848	iexplore.exe	87
PID 4848 wrote to memory of 2364	4848	iexplore.exe	87
PID 4848 wrote to memory of 2364	4848	iexplore.exe	87

C:\Users\Admin\AppData\Local\Temp\ffb859eeebd17e4450d013e70171d89e3475707fe4b0746c12faa41944796c61N.exe
"C:\Users\Admin\AppData\Local\Temp\ffb859eeebd17e4450d013e70171d89e3475707fe4b0746c12faa41944796c61N.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4988
- C:\Users\Admin\AppData\Local\Temp\ffb859eeebd17e4450d013e70171d89e3475707fe4b0746c12faa41944796c61NSrv.exe
  C:\Users\Admin\AppData\Local\Temp\ffb859eeebd17e4450d013e70171d89e3475707fe4b0746c12faa41944796c61NSrv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1884
- - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
    "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:436
  - - 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:4848
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4848 CREDAT:17410 /prefetch:2
        5⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:2364

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

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\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
863881560832be6db3d7e95507b796d8

SHA1
bab29c682b73454cb94d1a0edfaae5fd64d076f6

SHA256
1b8c898d463e9947656d97610caa6068a39c17fae72baa9168113364b7f70063

SHA512
0556ac3e08e23d12ba2558e3e1320f8c7591359a003c6b98e3d93208361000c3fc25dc13e9f4a3575ef854bd903b32f62a36e541ba10de67f38663d8d8debbcb

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
404B

MD5
9bb9c15f1c4af64e2405e6b774b16c3a

SHA1
18136c2ffe53eccc8b003ec9c681bfd6f0ae3fd5

SHA256
46f82d52fd4a7f814aed723a40ff8255aa4d22a25aab18c618d249c331b4942e

SHA512
ed612201b6cbb090b83ece41ec8999f0f7fc9eb46536f72351af108727d14ec617c05e5b247f7184299f6754c1335c7049814951844a61a3a8c1a252ccaecdef

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver756A.tmp

Filesize
15KB

MD5
1a545d0052b581fbb2ab4c52133846bc

SHA1
62f3266a9b9925cd6d98658b92adec673cbe3dd3

SHA256
557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

SHA512
bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\M6JHG9EK\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Users\Admin\AppData\Local\Temp\ffb859eeebd17e4450d013e70171d89e3475707fe4b0746c12faa41944796c61NSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/436-13-0x0000000000560000-0x0000000000561000-memory.dmp

Filesize
4KB

Download
memory/436-16-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/436-10-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/436-14-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1884-8-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1884-5-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4988-17-0x0000000001000000-0x0000000001106000-memory.dmp

Filesize
1.0MB

Download
memory/4988-0-0x0000000001000000-0x0000000001106000-memory.dmp

Filesize
1.0MB

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