ramnit | 6bed372c434bf6f93c2a128a73da55bad5c5b6011af7ba2b77a8ffebfc065bb1

General

Target

6bed372c434bf6f93c2a128a73da55bad5c5b6011af7ba2b77a8ffebfc065bb1.dll
Size

204KB
MD5

a379f414d28c747114b5196350164fc0
SHA1

858075802ccbb93fc9dc07bd4b6ea002f5af108a
SHA256

6bed372c434bf6f93c2a128a73da55bad5c5b6011af7ba2b77a8ffebfc065bb1
SHA512

54dae957178b8fb9c889c2447d6ba001baf91b19a0613f3ed814247d8ab1aceb40d0dac4124d3b008cfd6f0f5e929d4412b2331c0a3055684d5abb394642bb1c
SSDEEP

3072:tn4cV8gf2u41Z5tKldG+QYLhQzxWPh3Nqb0SdQ/dq+cUCyIahTp5wi:J4y8gOl2jG+vKzx6UwSj+chyOi

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
1992	rundll32Srv.exe
1284	DesktopLayer.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0007000000005c50-56.dat	upx
behavioral1/memory/1488-58-0x0000000000180000-0x00000000001AE000-memory.dmp	upx
behavioral1/files/0x0007000000005c50-60.dat	upx
behavioral1/files/0x0007000000005c50-62.dat	upx
behavioral1/files/0x000b000000012353-63.dat	upx
behavioral1/memory/1992-66-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x000b000000012353-65.dat	upx
behavioral1/files/0x000b000000012353-68.dat	upx
behavioral1/memory/1284-69-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
1488	rundll32.exe
1992	rundll32Srv.exe

Drops file in System32 directory 1 IoCs

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

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px5D3E.tmp	rundll32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe

Modifies Internet Explorer settings 1 TTPs 28 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{F97A9E31-57F8-11ED-98C6-66397CAA4A34} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "373861220"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1284	DesktopLayer.exe
1284	DesktopLayer.exe
1284	DesktopLayer.exe
1284	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1084	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1084	iexplore.exe
1084	iexplore.exe
528	IEXPLORE.EXE
528	IEXPLORE.EXE
528	IEXPLORE.EXE
528	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 900 wrote to memory of 1488	900	rundll32.exe	27
PID 900 wrote to memory of 1488	900	rundll32.exe	27
PID 900 wrote to memory of 1488	900	rundll32.exe	27
PID 900 wrote to memory of 1488	900	rundll32.exe	27
PID 900 wrote to memory of 1488	900	rundll32.exe	27
PID 900 wrote to memory of 1488	900	rundll32.exe	27
PID 900 wrote to memory of 1488	900	rundll32.exe	27
PID 1488 wrote to memory of 1992	1488	rundll32.exe	28
PID 1488 wrote to memory of 1992	1488	rundll32.exe	28
PID 1488 wrote to memory of 1992	1488	rundll32.exe	28
PID 1488 wrote to memory of 1992	1488	rundll32.exe	28
PID 1992 wrote to memory of 1284	1992	rundll32Srv.exe	29
PID 1992 wrote to memory of 1284	1992	rundll32Srv.exe	29
PID 1992 wrote to memory of 1284	1992	rundll32Srv.exe	29
PID 1992 wrote to memory of 1284	1992	rundll32Srv.exe	29
PID 1284 wrote to memory of 1084	1284	DesktopLayer.exe	30
PID 1284 wrote to memory of 1084	1284	DesktopLayer.exe	30
PID 1284 wrote to memory of 1084	1284	DesktopLayer.exe	30
PID 1284 wrote to memory of 1084	1284	DesktopLayer.exe	30
PID 1084 wrote to memory of 528	1084	iexplore.exe	32
PID 1084 wrote to memory of 528	1084	iexplore.exe	32
PID 1084 wrote to memory of 528	1084	iexplore.exe	32
PID 1084 wrote to memory of 528	1084	iexplore.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6bed372c434bf6f93c2a128a73da55bad5c5b6011af7ba2b77a8ffebfc065bb1.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:900
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\6bed372c434bf6f93c2a128a73da55bad5c5b6011af7ba2b77a8ffebfc065bb1.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:1488
- - C:\Windows\SysWOW64\rundll32Srv.exe
    C:\Windows\SysWOW64\rundll32Srv.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Drops file in Program Files directory
    - Suspicious use of WriteProcessMemory
    PID:1992
  - - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
      "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:1284
    - - 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:1084
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1084 CREDAT:275457 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:528

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Microsoft\DesktopLayer.exe

Filesize
111KB

MD5
9f179e646fb978a30b2aa0885e78c50f

SHA1
48314dd692a9494c44a90c6a4586775e9fee613e

SHA256
f3838d7a76e03d0488392389e8b9ba12e020dd765d9396ec584e546ad989a9b9

SHA512
eec10d1b634d9615902814616f89cfa7af31b575e84ec27db90a5f5376b186559ea2ec7faadd9ba95568ee90a7ef37d1363247828716fb4ae5fc25cfe88be10b

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

Filesize
111KB

MD5
9f179e646fb978a30b2aa0885e78c50f

SHA1
48314dd692a9494c44a90c6a4586775e9fee613e

SHA256
f3838d7a76e03d0488392389e8b9ba12e020dd765d9396ec584e546ad989a9b9

SHA512
eec10d1b634d9615902814616f89cfa7af31b575e84ec27db90a5f5376b186559ea2ec7faadd9ba95568ee90a7ef37d1363247828716fb4ae5fc25cfe88be10b

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\D210KS9X.txt

Filesize
606B

MD5
c45dd8a3da7fcf6831ce988d3b993f09

SHA1
ed244cb8d220d89e47ed172e69a993a05dee9cae

SHA256
5df4dda48ac839184dbad073a2dc9885b51e3f90ae254c888435f85ea55ec8af

SHA512
e4dd52982291d9e5dedc5051ea3af0c551dc80f32b1beaa67f7f8f5f3e2decb6bb58bc273a5186bc875502af2bba5af24477dbf0d4e9c79b593fb43f52d772c8

Download Submit
C:\Windows\SysWOW64\rundll32Srv.exe

Filesize
111KB

MD5
9f179e646fb978a30b2aa0885e78c50f

SHA1
48314dd692a9494c44a90c6a4586775e9fee613e

SHA256
f3838d7a76e03d0488392389e8b9ba12e020dd765d9396ec584e546ad989a9b9

SHA512
eec10d1b634d9615902814616f89cfa7af31b575e84ec27db90a5f5376b186559ea2ec7faadd9ba95568ee90a7ef37d1363247828716fb4ae5fc25cfe88be10b

Download Submit
C:\Windows\SysWOW64\rundll32Srv.exe

Filesize
111KB

MD5
9f179e646fb978a30b2aa0885e78c50f

SHA1
48314dd692a9494c44a90c6a4586775e9fee613e

SHA256
f3838d7a76e03d0488392389e8b9ba12e020dd765d9396ec584e546ad989a9b9

SHA512
eec10d1b634d9615902814616f89cfa7af31b575e84ec27db90a5f5376b186559ea2ec7faadd9ba95568ee90a7ef37d1363247828716fb4ae5fc25cfe88be10b

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

Filesize
111KB

MD5
9f179e646fb978a30b2aa0885e78c50f

SHA1
48314dd692a9494c44a90c6a4586775e9fee613e

SHA256
f3838d7a76e03d0488392389e8b9ba12e020dd765d9396ec584e546ad989a9b9

SHA512
eec10d1b634d9615902814616f89cfa7af31b575e84ec27db90a5f5376b186559ea2ec7faadd9ba95568ee90a7ef37d1363247828716fb4ae5fc25cfe88be10b

Download Submit
\Windows\SysWOW64\rundll32Srv.exe

Filesize
111KB

MD5
9f179e646fb978a30b2aa0885e78c50f

SHA1
48314dd692a9494c44a90c6a4586775e9fee613e

SHA256
f3838d7a76e03d0488392389e8b9ba12e020dd765d9396ec584e546ad989a9b9

SHA512
eec10d1b634d9615902814616f89cfa7af31b575e84ec27db90a5f5376b186559ea2ec7faadd9ba95568ee90a7ef37d1363247828716fb4ae5fc25cfe88be10b

Download Submit
memory/1284-69-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1488-57-0x0000000010000000-0x0000000010034000-memory.dmp

Filesize
208KB

Download
memory/1488-58-0x0000000000180000-0x00000000001AE000-memory.dmp

Filesize
184KB

Download
memory/1488-55-0x0000000076071000-0x0000000076073000-memory.dmp

Filesize
8KB

Download
memory/1992-66-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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