ramnit | 1cc4a7d0d03f3cab7ecc2ed3420e672ad3db3cfd1a4ff4807be3894004db48e8

Analysis

max time kernel
114s
max time network
149s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
21/11/2022, 11:14

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General

Target

1cc4a7d0d03f3cab7ecc2ed3420e672ad3db3cfd1a4ff4807be3894004db48e8.dll
Size

341KB
MD5

22ae7ac97dd19e6b6dfad610cff57260
SHA1

38c645a0d59e543a19635d0aa6bb7b37fde03402
SHA256

1cc4a7d0d03f3cab7ecc2ed3420e672ad3db3cfd1a4ff4807be3894004db48e8
SHA512

283b6687d346c39ffbfd1031ad5c120ba146f2a2099aa5dd8a445f40637cd8c6d581692bffad846aeda44e8e9aaa050f92c91fc09b5aba38b9e03a5176c28288
SSDEEP

6144:8IRfOmPXm/DkYrm3/20eDZiqDnGhxGROI+DYWAGlxNe/tEp2Bl1+BA5C2t3nn:fRBYiP2vZ70GNTht3n

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
1440	rundll32Srv.exe
1156	DesktopLayer.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000a00000001347b-56.dat	upx
behavioral1/files/0x000a00000001347b-58.dat	upx
behavioral1/files/0x000a00000001347b-60.dat	upx
behavioral1/memory/1440-65-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x0009000000013ba1-64.dat	upx
behavioral1/files/0x0009000000013ba1-61.dat	upx
behavioral1/files/0x0009000000013ba1-67.dat	upx
behavioral1/memory/1156-68-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/1752-69-0x0000000010000000-0x0000000010170000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
1752	rundll32.exe
1440	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\px1391.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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1236	1752	WerFault.exe	28

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "375797864"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\SearchScopes	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "2"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{0E8017C1-6996-11ED-8B07-42F1C931D1AB} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1156	DesktopLayer.exe
1156	DesktopLayer.exe
1156	DesktopLayer.exe
1156	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
808	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
808	iexplore.exe
808	iexplore.exe
832	IEXPLORE.EXE
832	IEXPLORE.EXE
832	IEXPLORE.EXE
832	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1284 wrote to memory of 1752	1284	rundll32.exe	28
PID 1284 wrote to memory of 1752	1284	rundll32.exe	28
PID 1284 wrote to memory of 1752	1284	rundll32.exe	28
PID 1284 wrote to memory of 1752	1284	rundll32.exe	28
PID 1284 wrote to memory of 1752	1284	rundll32.exe	28
PID 1284 wrote to memory of 1752	1284	rundll32.exe	28
PID 1284 wrote to memory of 1752	1284	rundll32.exe	28
PID 1752 wrote to memory of 1440	1752	rundll32.exe	29
PID 1752 wrote to memory of 1440	1752	rundll32.exe	29
PID 1752 wrote to memory of 1440	1752	rundll32.exe	29
PID 1752 wrote to memory of 1440	1752	rundll32.exe	29
PID 1752 wrote to memory of 1236	1752	rundll32.exe	30
PID 1752 wrote to memory of 1236	1752	rundll32.exe	30
PID 1752 wrote to memory of 1236	1752	rundll32.exe	30
PID 1752 wrote to memory of 1236	1752	rundll32.exe	30
PID 1440 wrote to memory of 1156	1440	rundll32Srv.exe	31
PID 1440 wrote to memory of 1156	1440	rundll32Srv.exe	31
PID 1440 wrote to memory of 1156	1440	rundll32Srv.exe	31
PID 1440 wrote to memory of 1156	1440	rundll32Srv.exe	31
PID 1156 wrote to memory of 808	1156	DesktopLayer.exe	32
PID 1156 wrote to memory of 808	1156	DesktopLayer.exe	32
PID 1156 wrote to memory of 808	1156	DesktopLayer.exe	32
PID 1156 wrote to memory of 808	1156	DesktopLayer.exe	32
PID 808 wrote to memory of 832	808	iexplore.exe	34
PID 808 wrote to memory of 832	808	iexplore.exe	34
PID 808 wrote to memory of 832	808	iexplore.exe	34
PID 808 wrote to memory of 832	808	iexplore.exe	34

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1cc4a7d0d03f3cab7ecc2ed3420e672ad3db3cfd1a4ff4807be3894004db48e8.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1284
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\1cc4a7d0d03f3cab7ecc2ed3420e672ad3db3cfd1a4ff4807be3894004db48e8.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:1752
- - 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:1440
  - - 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:1156
    - - 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:808
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:808 CREDAT:275457 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:832
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1752 -s 244
    3⤵
    - Program crash
    PID:1236

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\6ZCM8N72.txt

Filesize
593B

MD5
250eedfa3b86f561fb77ee06e004a60f

SHA1
a542b3f641d085fcb2ac82abdf3331a3b2516cec

SHA256
74ddf93b8dd10636803aee22dbfc178e7a24abba53f9fc4c5a8ff7fbc13cd565

SHA512
cbae095d6d17f38ad44d44a51442a4a442297355f83de1f609efc0affcd5183ed91427d24057ee2ceda044d5be6c07503860d49dba24933c0d7f06513aa8c220

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

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
\Windows\SysWOW64\rundll32Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/1156-68-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1440-65-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1752-69-0x0000000010000000-0x0000000010170000-memory.dmp

Filesize
1.4MB

Download
memory/1752-70-0x00000000001A0000-0x00000000001CE000-memory.dmp

Filesize
184KB

Download
memory/1752-55-0x00000000766F1000-0x00000000766F3000-memory.dmp

Filesize
8KB

Download