ramnit | d1ae2bf536d98cd937e819a098bb6eb7ba2af009dd5724563a6c03233e22885e

Analysis

max time kernel
122s
max time network
131s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
30/03/2024, 00:28

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General

Target
2024-03-30_4ac5f59bf52689d7e4049c58976073c0_mafia_ramnit.exe
Size 240KB
Sample240330-ask5hach2s
SHA256 d1ae2bf536d98cd937e819a098bb6eb7ba2af009dd5724563a6c03233e22885e
MD5 4ac5f59bf52689d7e4049c58976073c0
SHA1 29de74bf95deedb2a8880494c0b0e1ac710cc57f
SHA512 a81bd7f818a974b8b405d0e4d7c95111461400d53e8820cc5ba4a2b80519be4514635255bf819660c931810d0e4c26e81f2fadae7a63aae91d1547e519d68d36
SSDEEP 6144:TY6Aw1tj3vHMeC6uZy1RfzNf69UGC5p76KXxGj6:2w1FRC5y1RfzNGU9B6KB
MD5 SHA1 SHA512 SSDEEP

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

UPX dump on OEP (original entry point) 6 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012265-2.dat	UPX
behavioral1/memory/2096-12-0x0000000000400000-0x000000000042E000-memory.dmp	UPX
behavioral1/memory/3036-15-0x0000000000400000-0x000000000042E000-memory.dmp	UPX
behavioral1/memory/3036-19-0x0000000000400000-0x000000000042E000-memory.dmp	UPX
behavioral1/memory/2356-496-0x0000000001130000-0x0000000001173000-memory.dmp	UPX
behavioral1/memory/2096-498-0x00000000003C0000-0x00000000003CF000-memory.dmp	UPX

Executes dropped EXE 2 IoCs

pid	Process
2096	2024-03-30_4ac5f59bf52689d7e4049c58976073c0_mafia_ramnitSrv.exe
3036	DesktopLayer.exe

Loads dropped DLL 2 IoCs

pid	Process
2356	2024-03-30_4ac5f59bf52689d7e4049c58976073c0_mafia_ramnit.exe
2096	2024-03-30_4ac5f59bf52689d7e4049c58976073c0_mafia_ramnitSrv.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000b000000012265-2.dat	upx
behavioral1/memory/2096-12-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/3036-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/3036-19-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/2096-498-0x00000000003C0000-0x00000000003CF000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px4B43.tmp	2024-03-30_4ac5f59bf52689d7e4049c58976073c0_mafia_ramnitSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	2024-03-30_4ac5f59bf52689d7e4049c58976073c0_mafia_ramnitSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	2024-03-30_4ac5f59bf52689d7e4049c58976073c0_mafia_ramnitSrv.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2572	2356	WerFault.exe	27

Modifies Internet Explorer settings 1 TTPs 28 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "417920383"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{71829111-EE2C-11EE-ACBC-CAFA5A0A62FD} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\SearchScopes	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "3"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3036	DesktopLayer.exe
3036	DesktopLayer.exe
3036	DesktopLayer.exe
3036	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2624	iexplore.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2624	iexplore.exe
2624	iexplore.exe
2656	IEXPLORE.EXE
2656	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2356 wrote to memory of 2096	2356	2024-03-30_4ac5f59bf52689d7e4049c58976073c0_mafia_ramnit.exe	28
PID 2356 wrote to memory of 2096	2356	2024-03-30_4ac5f59bf52689d7e4049c58976073c0_mafia_ramnit.exe	28
PID 2356 wrote to memory of 2096	2356	2024-03-30_4ac5f59bf52689d7e4049c58976073c0_mafia_ramnit.exe	28
PID 2356 wrote to memory of 2096	2356	2024-03-30_4ac5f59bf52689d7e4049c58976073c0_mafia_ramnit.exe	28
PID 2096 wrote to memory of 3036	2096	2024-03-30_4ac5f59bf52689d7e4049c58976073c0_mafia_ramnitSrv.exe	29
PID 2096 wrote to memory of 3036	2096	2024-03-30_4ac5f59bf52689d7e4049c58976073c0_mafia_ramnitSrv.exe	29
PID 2096 wrote to memory of 3036	2096	2024-03-30_4ac5f59bf52689d7e4049c58976073c0_mafia_ramnitSrv.exe	29
PID 2096 wrote to memory of 3036	2096	2024-03-30_4ac5f59bf52689d7e4049c58976073c0_mafia_ramnitSrv.exe	29
PID 3036 wrote to memory of 2624	3036	DesktopLayer.exe	30
PID 3036 wrote to memory of 2624	3036	DesktopLayer.exe	30
PID 3036 wrote to memory of 2624	3036	DesktopLayer.exe	30
PID 3036 wrote to memory of 2624	3036	DesktopLayer.exe	30
PID 2356 wrote to memory of 2572	2356	2024-03-30_4ac5f59bf52689d7e4049c58976073c0_mafia_ramnit.exe	31
PID 2356 wrote to memory of 2572	2356	2024-03-30_4ac5f59bf52689d7e4049c58976073c0_mafia_ramnit.exe	31
PID 2356 wrote to memory of 2572	2356	2024-03-30_4ac5f59bf52689d7e4049c58976073c0_mafia_ramnit.exe	31
PID 2356 wrote to memory of 2572	2356	2024-03-30_4ac5f59bf52689d7e4049c58976073c0_mafia_ramnit.exe	31
PID 2624 wrote to memory of 2656	2624	iexplore.exe	32
PID 2624 wrote to memory of 2656	2624	iexplore.exe	32
PID 2624 wrote to memory of 2656	2624	iexplore.exe	32
PID 2624 wrote to memory of 2656	2624	iexplore.exe	32

C:\Users\Admin\AppData\Local\Temp\2024-03-30_4ac5f59bf52689d7e4049c58976073c0_mafia_ramnit.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-30_4ac5f59bf52689d7e4049c58976073c0_mafia_ramnit.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2356
- C:\Users\Admin\AppData\Local\Temp\2024-03-30_4ac5f59bf52689d7e4049c58976073c0_mafia_ramnitSrv.exe
  C:\Users\Admin\AppData\Local\Temp\2024-03-30_4ac5f59bf52689d7e4049c58976073c0_mafia_ramnitSrv.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:2096
- - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
    "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:3036
  - - 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:2624
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2624 CREDAT:275457 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:2656
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2356 -s 188
  2⤵
  - Program crash
  PID:2572

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact