ramnit | 8d34337c1b7f3fa479f4ffbd5de750e59f56d35961481e3331b92a60c8669e7e

Analysis

max time kernel
124s
max time network
130s
platform
windows7_x64
resource
win7-20220414-en
submitted
25-06-2022 03:12

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General

Target

8d34337c1b7f3fa479f4ffbd5de750e59f56d35961481e3331b92a60c8669e7e.dll
Size

793KB
MD5

358ecfffc983f647648eaa9e7c7b146c
SHA1

efa46704790e370b0c4a1d313120494bffca3571
SHA256

8d34337c1b7f3fa479f4ffbd5de750e59f56d35961481e3331b92a60c8669e7e
SHA512

b55a8c065b5a87c88bd000d0e68cafd216621c0e297e49975fa6c5612e5dd4e8e8381a800ff0bc89278211a68f0643a00c3f533114dfe951596933a25c4af8ad

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 3 IoCs

Processes:

rundll32mgr.exerundll32Srv.exeDesktopLayer.exe

pid process

1392 rundll32mgr.exe
1248 rundll32Srv.exe
1272 DesktopLayer.exe

pid	process
1392	rundll32mgr.exe
1248	rundll32Srv.exe
1272	DesktopLayer.exe

UPX packed file 10 IoCs

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

upx

Processes:

resource	yara_rule
\Windows\SysWOW64\rundll32Srv.exe	upx
C:\Windows\SysWOW64\rundll32Srv.exe	upx
C:\Windows\SysWOW64\rundll32Srv.exe	upx
\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
behavioral1/memory/1248-69-0x0000000000400000-0x000000000042E000-memory.dmp	upx
C:\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
C:\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
behavioral1/memory/1272-73-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/1392-74-0x0000000000400000-0x000000000042A000-memory.dmp	upx
behavioral1/memory/1392-78-0x0000000000400000-0x000000000042A000-memory.dmp	upx

Loads dropped DLL 6 IoCs

Processes:

rundll32.exerundll32Srv.exerundll32mgr.exe

pid process

560 rundll32.exe
560 rundll32.exe
560 rundll32.exe
1248 rundll32Srv.exe
1392 rundll32mgr.exe
1392 rundll32mgr.exe
Drops file in System32 directory 2 IoCs

Processes:

rundll32.exe

description ioc process

File created C:\Windows\SysWOW64\rundll32mgr.exe rundll32.exe
File created C:\Windows\SysWOW64\rundll32Srv.exe rundll32.exe

pid	process
560	rundll32.exe
560	rundll32.exe
560	rundll32.exe
1248	rundll32Srv.exe
1392	rundll32mgr.exe
1392	rundll32mgr.exe

description	ioc	process
File created	C:\Windows\SysWOW64\rundll32mgr.exe	rundll32.exe
File created	C:\Windows\SysWOW64\rundll32Srv.exe	rundll32.exe

Drops file in Program Files directory 3 IoCs

Processes:

rundll32Srv.exe

description	ioc	process
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px647E.tmp	rundll32Srv.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

892 1392 WerFault.exe rundll32mgr.exe

pid	pid_target	process	target process
892	1392	WerFault.exe	rundll32mgr.exe

Modifies Internet Explorer settings 1 TTPs 28 IoCs

adware spyware

Modify Registry

T1112

Processes:

iexplore.exeIEXPLORE.EXE

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "362900079"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{0D38A711-F448-11EC-A338-C621D3E3FB96} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

DesktopLayer.exe

pid process

1272 DesktopLayer.exe
1272 DesktopLayer.exe
1272 DesktopLayer.exe
1272 DesktopLayer.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid process

1160 iexplore.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid process

1160 iexplore.exe
1160 iexplore.exe
1776 IEXPLORE.EXE
1776 IEXPLORE.EXE
1776 IEXPLORE.EXE
1776 IEXPLORE.EXE

pid	process
1272	DesktopLayer.exe
1272	DesktopLayer.exe
1272	DesktopLayer.exe
1272	DesktopLayer.exe

pid	process
1160	iexplore.exe

pid	process
1160	iexplore.exe
1160	iexplore.exe
1776	IEXPLORE.EXE
1776	IEXPLORE.EXE
1776	IEXPLORE.EXE
1776	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

rundll32.exerundll32.exerundll32Srv.exeDesktopLayer.exeiexplore.exe

description	pid	process	target process
PID 240 wrote to memory of 560	240	rundll32.exe	rundll32.exe
PID 240 wrote to memory of 560	240	rundll32.exe	rundll32.exe
PID 240 wrote to memory of 560	240	rundll32.exe	rundll32.exe
PID 240 wrote to memory of 560	240	rundll32.exe	rundll32.exe
PID 240 wrote to memory of 560	240	rundll32.exe	rundll32.exe
PID 240 wrote to memory of 560	240	rundll32.exe	rundll32.exe
PID 240 wrote to memory of 560	240	rundll32.exe	rundll32.exe
PID 560 wrote to memory of 1392	560	rundll32.exe	rundll32mgr.exe
PID 560 wrote to memory of 1392	560	rundll32.exe	rundll32mgr.exe
PID 560 wrote to memory of 1392	560	rundll32.exe	rundll32mgr.exe
PID 560 wrote to memory of 1392	560	rundll32.exe	rundll32mgr.exe
PID 560 wrote to memory of 1248	560	rundll32.exe	rundll32Srv.exe
PID 560 wrote to memory of 1248	560	rundll32.exe	rundll32Srv.exe
PID 560 wrote to memory of 1248	560	rundll32.exe	rundll32Srv.exe
PID 560 wrote to memory of 1248	560	rundll32.exe	rundll32Srv.exe
PID 1248 wrote to memory of 1272	1248	rundll32Srv.exe	DesktopLayer.exe
PID 1248 wrote to memory of 1272	1248	rundll32Srv.exe	DesktopLayer.exe
PID 1248 wrote to memory of 1272	1248	rundll32Srv.exe	DesktopLayer.exe
PID 1248 wrote to memory of 1272	1248	rundll32Srv.exe	DesktopLayer.exe
PID 1272 wrote to memory of 1160	1272	DesktopLayer.exe	iexplore.exe
PID 1272 wrote to memory of 1160	1272	DesktopLayer.exe	iexplore.exe
PID 1272 wrote to memory of 1160	1272	DesktopLayer.exe	iexplore.exe
PID 1272 wrote to memory of 1160	1272	DesktopLayer.exe	iexplore.exe
PID 1160 wrote to memory of 1776	1160	iexplore.exe	IEXPLORE.EXE
PID 1160 wrote to memory of 1776	1160	iexplore.exe	IEXPLORE.EXE
PID 1160 wrote to memory of 1776	1160	iexplore.exe	IEXPLORE.EXE
PID 1160 wrote to memory of 1776	1160	iexplore.exe	IEXPLORE.EXE

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8d34337c1b7f3fa479f4ffbd5de750e59f56d35961481e3331b92a60c8669e7e.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:240
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\8d34337c1b7f3fa479f4ffbd5de750e59f56d35961481e3331b92a60c8669e7e.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:560
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:1392
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1392 -s 180
      4⤵
      Program crash
      PID:892
- - 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:1248
  - - 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:1272
    - - 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:1160
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1160 CREDAT:275457 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1776

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

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
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\Roaming\Microsoft\Windows\Cookies\F9Y2NLQK.txt

Filesize
598B

MD5
98878328acb3319cbf8354af2ac3db47

SHA1
01722fa7ad82a2ea9e9494edf020cdfde3b23b5f

SHA256
f4b70d7c0a7b8864417eca02b70f2cd7030cb2719eb124ae4c4bed53c3d7adb0

SHA512
6142acb861387b787c5257208fb9c14af7a73cdcc66216d5827284ad25b739d474dba265596df0ac3a52ea22055aef38d988bd1c7263c67e2dbcb00670207e8a

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

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

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

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
106KB

MD5
7657fcb7d772448a6d8504e4b20168b8

SHA1
84c7201f7e59cb416280fd69a2e7f2e349ec8242

SHA256
54bc950d46a0d1aa72048a17c8275743209e6c17bdacfc4cb9601c9ce3ec9a71

SHA512
786addd2a793bd4123625b22dc717d193246442ac97f1c3f4a763ec794b48e68051cd41097c0e9f7367e6914534f36eafccb109ab03dc793d68bf1522e7884e2

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\~TM6568.tmp

Filesize
1.2MB

MD5
d124f55b9393c976963407dff51ffa79

SHA1
2c7bbedd79791bfb866898c85b504186db610b5d

SHA256
ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

SHA512
278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

Download Submit
\Users\Admin\AppData\Local\Temp\~TM68F2.tmp

Filesize
1.1MB

MD5
9b98d47916ead4f69ef51b56b0c2323c

SHA1
290a80b4ded0efc0fd00816f373fcea81a521330

SHA256
96e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b

SHA512
68b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94

Download Submit
\Windows\SysWOW64\rundll32Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
\Windows\SysWOW64\rundll32mgr.exe

Filesize
106KB

MD5
7657fcb7d772448a6d8504e4b20168b8

SHA1
84c7201f7e59cb416280fd69a2e7f2e349ec8242

SHA256
54bc950d46a0d1aa72048a17c8275743209e6c17bdacfc4cb9601c9ce3ec9a71

SHA512
786addd2a793bd4123625b22dc717d193246442ac97f1c3f4a763ec794b48e68051cd41097c0e9f7367e6914534f36eafccb109ab03dc793d68bf1522e7884e2

Download Submit
\Windows\SysWOW64\rundll32mgr.exe

Filesize
106KB

MD5
7657fcb7d772448a6d8504e4b20168b8

SHA1
84c7201f7e59cb416280fd69a2e7f2e349ec8242

SHA256
54bc950d46a0d1aa72048a17c8275743209e6c17bdacfc4cb9601c9ce3ec9a71

SHA512
786addd2a793bd4123625b22dc717d193246442ac97f1c3f4a763ec794b48e68051cd41097c0e9f7367e6914534f36eafccb109ab03dc793d68bf1522e7884e2

Download Submit
memory/560-57-0x0000000010000000-0x00000000100D1000-memory.dmp

Filesize
836KB

Download
memory/560-54-0x0000000000000000-mapping.dmp

Download
memory/560-55-0x00000000757C1000-0x00000000757C3000-memory.dmp

Filesize
8KB

Download
memory/1248-69-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1248-62-0x0000000000000000-mapping.dmp

Download
memory/1272-73-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1272-67-0x0000000000000000-mapping.dmp

Download
memory/1392-74-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/1392-75-0x0000000000220000-0x000000000024A000-memory.dmp

Filesize
168KB

Download
memory/1392-78-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/1392-79-0x0000000077940000-0x0000000077AC0000-memory.dmp

Filesize
1.5MB

Download
memory/1392-59-0x0000000000000000-mapping.dmp

Download