ramnit | 66023798d3950c160853cb23cbbe5bf32890330d683bc3e409c5e43f59a83f6d

General

Target

66023798d3950c160853cb23cbbe5bf32890330d683bc3e409c5e43f59a83f6d.exe
Size

976KB
MD5

4b76d788a75b705fd37353be41fd02d0
SHA1

f91717cf2d51f7c870112f2d0c8cac2c4e83038e
SHA256

66023798d3950c160853cb23cbbe5bf32890330d683bc3e409c5e43f59a83f6d
SHA512

b720522a82f839da12cdf5652da30ebc9d70e754f26debf0a36ffaa37f2fb5921487a67cc19cec3a4f712050a4a57934e0aa9ec777b6e7044f828b521c75d66d
SSDEEP

24576:E6n+7XuKlDl5STZhwBAXQWnq+LxxSJQI1uPRooapDdCL:zn+7XXlDl8TZ2SXQWqExx/I1uPGoaRdC

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 2 IoCs

pid	Process
1900	66023798d3950c160853cb23cbbe5bf32890330d683bc3e409c5e43f59a83f6dSrv.exe
1732	DesktopLayer.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000c0000000054a8-55.dat	upx
behavioral1/files/0x000c0000000054a8-57.dat	upx
behavioral1/files/0x000c0000000054a8-59.dat	upx
behavioral1/files/0x000a000000012326-60.dat	upx
behavioral1/memory/1900-62-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x000a000000012326-63.dat	upx
behavioral1/files/0x000a000000012326-65.dat	upx
behavioral1/memory/1732-66-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x000c0000000054a8-69.dat	upx

Loads dropped DLL 3 IoCs

pid	Process
1976	66023798d3950c160853cb23cbbe5bf32890330d683bc3e409c5e43f59a83f6d.exe
1900	66023798d3950c160853cb23cbbe5bf32890330d683bc3e409c5e43f59a83f6dSrv.exe
1976	66023798d3950c160853cb23cbbe5bf32890330d683bc3e409c5e43f59a83f6d.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\pxF6DE.tmp	66023798d3950c160853cb23cbbe5bf32890330d683bc3e409c5e43f59a83f6dSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	66023798d3950c160853cb23cbbe5bf32890330d683bc3e409c5e43f59a83f6dSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	66023798d3950c160853cb23cbbe5bf32890330d683bc3e409c5e43f59a83f6dSrv.exe

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 28 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{0CB442A1-439D-11ED-9551-6E705F4A26E5} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "371622743"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1732	DesktopLayer.exe
1732	DesktopLayer.exe
1732	DesktopLayer.exe
1732	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1240	iexplore.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1240	iexplore.exe
1240	iexplore.exe
888	IEXPLORE.EXE
888	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1976 wrote to memory of 1900	1976	66023798d3950c160853cb23cbbe5bf32890330d683bc3e409c5e43f59a83f6d.exe	28
PID 1976 wrote to memory of 1900	1976	66023798d3950c160853cb23cbbe5bf32890330d683bc3e409c5e43f59a83f6d.exe	28
PID 1976 wrote to memory of 1900	1976	66023798d3950c160853cb23cbbe5bf32890330d683bc3e409c5e43f59a83f6d.exe	28
PID 1976 wrote to memory of 1900	1976	66023798d3950c160853cb23cbbe5bf32890330d683bc3e409c5e43f59a83f6d.exe	28
PID 1900 wrote to memory of 1732	1900	66023798d3950c160853cb23cbbe5bf32890330d683bc3e409c5e43f59a83f6dSrv.exe	29
PID 1900 wrote to memory of 1732	1900	66023798d3950c160853cb23cbbe5bf32890330d683bc3e409c5e43f59a83f6dSrv.exe	29
PID 1900 wrote to memory of 1732	1900	66023798d3950c160853cb23cbbe5bf32890330d683bc3e409c5e43f59a83f6dSrv.exe	29
PID 1900 wrote to memory of 1732	1900	66023798d3950c160853cb23cbbe5bf32890330d683bc3e409c5e43f59a83f6dSrv.exe	29
PID 1732 wrote to memory of 1240	1732	DesktopLayer.exe	30
PID 1732 wrote to memory of 1240	1732	DesktopLayer.exe	30
PID 1732 wrote to memory of 1240	1732	DesktopLayer.exe	30
PID 1732 wrote to memory of 1240	1732	DesktopLayer.exe	30
PID 1240 wrote to memory of 888	1240	iexplore.exe	32
PID 1240 wrote to memory of 888	1240	iexplore.exe	32
PID 1240 wrote to memory of 888	1240	iexplore.exe	32
PID 1240 wrote to memory of 888	1240	iexplore.exe	32

C:\Users\Admin\AppData\Local\Temp\66023798d3950c160853cb23cbbe5bf32890330d683bc3e409c5e43f59a83f6d.exe
"C:\Users\Admin\AppData\Local\Temp\66023798d3950c160853cb23cbbe5bf32890330d683bc3e409c5e43f59a83f6d.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1976
- C:\Users\Admin\AppData\Local\Temp\66023798d3950c160853cb23cbbe5bf32890330d683bc3e409c5e43f59a83f6dSrv.exe
  C:\Users\Admin\AppData\Local\Temp\66023798d3950c160853cb23cbbe5bf32890330d683bc3e409c5e43f59a83f6dSrv.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:1900
- - 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:1732
  - - 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:1240
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1240 CREDAT:275457 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:888

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

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\Local\Temp\66023798d3950c160853cb23cbbe5bf32890330d683bc3e409c5e43f59a83f6dSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\66023798d3950c160853cb23cbbe5bf32890330d683bc3e409c5e43f59a83f6dSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\AWJ74VCO.txt

Filesize
603B

MD5
c1877fec2e687a380e117e8956949311

SHA1
ecf3cc9453d5a92f6faf036a1cca101d0a77eb46

SHA256
3faf0c1fbcd6f8391250b8a0a5623bc6b1859e5f9a1b54169f582b5fa5805837

SHA512
0537bfea531aeb258cf3cdbde557ea2bdb34a7e96f5c29e30ceb01b8815a42965d9c78bb884fdd7060f978ea7eb5bfb414f2eb5bb99e5893998b868e3a470627

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

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
\Users\Admin\AppData\Local\Temp\66023798d3950c160853cb23cbbe5bf32890330d683bc3e409c5e43f59a83f6dSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
\Users\Admin\AppData\Local\Temp\66023798d3950c160853cb23cbbe5bf32890330d683bc3e409c5e43f59a83f6dSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/1732-66-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1900-62-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1976-54-0x0000000074AB1000-0x0000000074AB3000-memory.dmp

Filesize
8KB

Download
memory/1976-67-0x0000000000400000-0x0000000000A27000-memory.dmp

Filesize
6.2MB

Download
memory/1976-68-0x00000000001E0000-0x000000000020E000-memory.dmp

Filesize
184KB

Download
memory/1976-70-0x0000000002520000-0x000000000254E000-memory.dmp

Filesize
184KB

Download
memory/1976-72-0x0000000000400000-0x0000000000A27000-memory.dmp

Filesize
6.2MB

Download

Analysis

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