ramnit | 4e71af185ee9671e727603c68783933570af4d390ba9a5bba4748f5f0c76f8cb

Analysis

max time kernel
93s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24-11-2024 15:02

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General

Target

2024-11-24_a6cd077b95edb75bafd6ab795564ce93_mafia_ramnit.exe
Size

3.2MB
MD5

a6cd077b95edb75bafd6ab795564ce93
SHA1

e0d900ab92b75036366824c2c2b8a507ec41923e
SHA256

4e71af185ee9671e727603c68783933570af4d390ba9a5bba4748f5f0c76f8cb
SHA512

73f8baf2ef61122fbe3216317ff2d66063cda748e076c83f9456dac40e0e04d2bf4c9ae528f7172ffe5bc42c8902623da03a0bb3dbc79d43e4beb405f6c48e7f
SSDEEP

98304:+YzuLnwr0vBYtaifm46VIdwL7+LRPU/xOnoj9ghi1RebMIg9Cbk/V8S7iGY:+YCLnLifmJ8RPU/xOnojDIg9Cbk/V8p

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

Processes:

2024-11-24_a6cd077b95edb75bafd6ab795564ce93_mafia_ramnitSrv.exeDesktopLayer.exe

pid	Process
4900	2024-11-24_a6cd077b95edb75bafd6ab795564ce93_mafia_ramnitSrv.exe
2864	DesktopLayer.exe

UPX packed file 7 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/files/0x000c000000023bb8-3.dat	upx
behavioral2/memory/4900-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4900-8-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/2864-12-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/2864-13-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/2864-16-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/2864-18-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

Processes:

2024-11-24_a6cd077b95edb75bafd6ab795564ce93_mafia_ramnitSrv.exe

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px87BE.tmp	2024-11-24_a6cd077b95edb75bafd6ab795564ce93_mafia_ramnitSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	2024-11-24_a6cd077b95edb75bafd6ab795564ce93_mafia_ramnitSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	2024-11-24_a6cd077b95edb75bafd6ab795564ce93_mafia_ramnitSrv.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

Processes:

2024-11-24_a6cd077b95edb75bafd6ab795564ce93_mafia_ramnit.exe2024-11-24_a6cd077b95edb75bafd6ab795564ce93_mafia_ramnitSrv.exeDesktopLayer.exeIEXPLORE.EXE

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-24_a6cd077b95edb75bafd6ab795564ce93_mafia_ramnit.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-24_a6cd077b95edb75bafd6ab795564ce93_mafia_ramnitSrv.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 30 IoCs

adware spyware

Modify Registry

T1112

Processes:

iexplore.exeIEXPLORE.EXE

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31145601"	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
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main	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
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\LastUpdateLowDateTime = "3940658226"	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
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\VersionManager	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\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{167F47BD-AA75-11EF-AEE2-4E8E92B54298} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	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\Main\CompatibilityFlags = "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 (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\GPU	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 (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3940658226"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	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\Main	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\LastCheckForUpdateLowDateTime = "3944564265"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31145601"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31145601"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "439225508"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

DesktopLayer.exe

pid	Process
2864	DesktopLayer.exe
2864	DesktopLayer.exe
2864	DesktopLayer.exe
2864	DesktopLayer.exe
2864	DesktopLayer.exe
2864	DesktopLayer.exe
2864	DesktopLayer.exe
2864	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid	Process
4472	iexplore.exe

Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

2024-11-24_a6cd077b95edb75bafd6ab795564ce93_mafia_ramnit.exeiexplore.exeIEXPLORE.EXE

pid	Process
3932	2024-11-24_a6cd077b95edb75bafd6ab795564ce93_mafia_ramnit.exe
4472	iexplore.exe
4472	iexplore.exe
2604	IEXPLORE.EXE
2604	IEXPLORE.EXE
2604	IEXPLORE.EXE
2604	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

2024-11-24_a6cd077b95edb75bafd6ab795564ce93_mafia_ramnit.exe2024-11-24_a6cd077b95edb75bafd6ab795564ce93_mafia_ramnitSrv.exeDesktopLayer.exeiexplore.exe

description	pid	Process	procid_target
PID 3932 wrote to memory of 4900	3932	2024-11-24_a6cd077b95edb75bafd6ab795564ce93_mafia_ramnit.exe	83
PID 3932 wrote to memory of 4900	3932	2024-11-24_a6cd077b95edb75bafd6ab795564ce93_mafia_ramnit.exe	83
PID 3932 wrote to memory of 4900	3932	2024-11-24_a6cd077b95edb75bafd6ab795564ce93_mafia_ramnit.exe	83
PID 4900 wrote to memory of 2864	4900	2024-11-24_a6cd077b95edb75bafd6ab795564ce93_mafia_ramnitSrv.exe	84
PID 4900 wrote to memory of 2864	4900	2024-11-24_a6cd077b95edb75bafd6ab795564ce93_mafia_ramnitSrv.exe	84
PID 4900 wrote to memory of 2864	4900	2024-11-24_a6cd077b95edb75bafd6ab795564ce93_mafia_ramnitSrv.exe	84
PID 2864 wrote to memory of 4472	2864	DesktopLayer.exe	85
PID 2864 wrote to memory of 4472	2864	DesktopLayer.exe	85
PID 4472 wrote to memory of 2604	4472	iexplore.exe	86
PID 4472 wrote to memory of 2604	4472	iexplore.exe	86
PID 4472 wrote to memory of 2604	4472	iexplore.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-11-24_a6cd077b95edb75bafd6ab795564ce93_mafia_ramnit.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-24_a6cd077b95edb75bafd6ab795564ce93_mafia_ramnit.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3932
- C:\Users\Admin\AppData\Local\Temp\2024-11-24_a6cd077b95edb75bafd6ab795564ce93_mafia_ramnitSrv.exe
  C:\Users\Admin\AppData\Local\Temp\2024-11-24_a6cd077b95edb75bafd6ab795564ce93_mafia_ramnitSrv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4900
- - 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:2864
  - - 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:4472
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4472 CREDAT:17410 /prefetch:2
        5⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:2604

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\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
539399c9f7153f78b67cde1bcdea163f

SHA1
6cb6e4936d546c17549aec9431a2af7c31bb3c3a

SHA256
27b9528028887b2d852cae2cb55efb965fc13dfa0882f85d6236814f7eb0ad65

SHA512
11836ba1429de7d15b9eb33b4852b0c71872149e9d448959c366aca1db75796446a86ee5c40b274ac3102d5395c7197d4dc2cd11b32754538aa6883e0ebdbf17

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

Filesize
404B

MD5
d013cc8523ed16089d2ca22b5cce1be0

SHA1
d0156e886b9a2c29ecf7661b655d5a1bb1c6344d

SHA256
bbb37724a3533bd66e78e27c58602c2855a4c70a353d5657c08c0d7bed1135d8

SHA512
e1967b659be1155b93a41c0a1f7032b755243d706cf204937811696da127e01f5b1da3a854e98ecb5bc503a4f7e4e687f90aef27b043a4a1b797b802a107e433

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\2024-11-24_a6cd077b95edb75bafd6ab795564ce93_mafia_ramnitSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/2864-18-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2864-12-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2864-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2864-16-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2864-15-0x00000000005A0000-0x00000000005A1000-memory.dmp

Filesize
4KB

Download
memory/3932-0-0x0000000000A30000-0x0000000000D79000-memory.dmp

Filesize
3.3MB

Download
memory/3932-19-0x0000000000A30000-0x0000000000D79000-memory.dmp

Filesize
3.3MB

Download
memory/3932-20-0x0000000000A30000-0x0000000000D79000-memory.dmp

Filesize
3.3MB

Download
memory/4900-6-0x0000000000590000-0x000000000059F000-memory.dmp

Filesize
60KB

Download
memory/4900-8-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4900-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download