ramnit | 87e5d91857b90781137cedb4c60524207256f273d30ea670d690867b7d17775c

General

Target

87e5d91857b90781137cedb4c60524207256f273d30ea670d690867b7d17775c.dll
Size

354KB
MD5

048165a5863ce7914f56d546ca381040
SHA1

d594ee446223d38a808e66e00d008afaf84ca92f
SHA256

87e5d91857b90781137cedb4c60524207256f273d30ea670d690867b7d17775c
SHA512

a3a0a13fdddf79bd2d08ce44a63e1d0fc8ea81ee8c0c192ed4cd653dc00f90b9db02612adf227a030ab003678e416785f2b5b76d00286ac491f16a2e947ded2e
SSDEEP

6144:crLrZ6khGKMKlH56XQMs+jlk2XJa5OPS82I+MJLSqgeORFsES9bd5YP:mLQkhGKMKlHEs+pk2XJa5982I+jqQKN2

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
900	rundll32Srv.exe
1488	DesktopLayer.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000500000000b2d2-56.dat	upx
behavioral1/files/0x000500000000b2d2-58.dat	upx
behavioral1/files/0x000500000000b2d2-61.dat	upx
behavioral1/files/0x000a000000012330-62.dat	upx
behavioral1/memory/900-65-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x000a000000012330-64.dat	upx
behavioral1/files/0x000a000000012330-67.dat	upx
behavioral1/memory/1488-68-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
1628	rundll32.exe
900	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\pxC80.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-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "374559392"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{8965E901-5E52-11ED-BAA3-DE6E3020A1A7} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1488	DesktopLayer.exe
1488	DesktopLayer.exe
1488	DesktopLayer.exe
1488	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
676	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
676	iexplore.exe
676	iexplore.exe
1128	IEXPLORE.EXE
1128	IEXPLORE.EXE
1128	IEXPLORE.EXE
1128	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1996 wrote to memory of 1628	1996	rundll32.exe	27
PID 1996 wrote to memory of 1628	1996	rundll32.exe	27
PID 1996 wrote to memory of 1628	1996	rundll32.exe	27
PID 1996 wrote to memory of 1628	1996	rundll32.exe	27
PID 1996 wrote to memory of 1628	1996	rundll32.exe	27
PID 1996 wrote to memory of 1628	1996	rundll32.exe	27
PID 1996 wrote to memory of 1628	1996	rundll32.exe	27
PID 1628 wrote to memory of 900	1628	rundll32.exe	28
PID 1628 wrote to memory of 900	1628	rundll32.exe	28
PID 1628 wrote to memory of 900	1628	rundll32.exe	28
PID 1628 wrote to memory of 900	1628	rundll32.exe	28
PID 900 wrote to memory of 1488	900	rundll32Srv.exe	29
PID 900 wrote to memory of 1488	900	rundll32Srv.exe	29
PID 900 wrote to memory of 1488	900	rundll32Srv.exe	29
PID 900 wrote to memory of 1488	900	rundll32Srv.exe	29
PID 1488 wrote to memory of 676	1488	DesktopLayer.exe	30
PID 1488 wrote to memory of 676	1488	DesktopLayer.exe	30
PID 1488 wrote to memory of 676	1488	DesktopLayer.exe	30
PID 1488 wrote to memory of 676	1488	DesktopLayer.exe	30
PID 676 wrote to memory of 1128	676	iexplore.exe	32
PID 676 wrote to memory of 1128	676	iexplore.exe	32
PID 676 wrote to memory of 1128	676	iexplore.exe	32
PID 676 wrote to memory of 1128	676	iexplore.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\87e5d91857b90781137cedb4c60524207256f273d30ea670d690867b7d17775c.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1996
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\87e5d91857b90781137cedb4c60524207256f273d30ea670d690867b7d17775c.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:1628
- - 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:900
  - - 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:1488
    - - 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:676
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:676 CREDAT:275457 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1128

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
55KB

MD5
42bacbdf56184c2fa5fe6770857e2c2d

SHA1
521a63ee9ce2f615eda692c382b16fc1b1d57cac

SHA256
d1a57e19ddb9892e423248cc8ff0c4b1211d22e1ccad6111fcac218290f246f0

SHA512
0ab916dd15278e51bccfd2ccedd80d942b0bddb9544cec3f73120780d4f7234ff7456530e1465caf3846616821d1b385b6ae58a5dff9ffe4d622902c24fd4b71

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

Filesize
55KB

MD5
42bacbdf56184c2fa5fe6770857e2c2d

SHA1
521a63ee9ce2f615eda692c382b16fc1b1d57cac

SHA256
d1a57e19ddb9892e423248cc8ff0c4b1211d22e1ccad6111fcac218290f246f0

SHA512
0ab916dd15278e51bccfd2ccedd80d942b0bddb9544cec3f73120780d4f7234ff7456530e1465caf3846616821d1b385b6ae58a5dff9ffe4d622902c24fd4b71

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\MN2YDCBW.txt

Filesize
603B

MD5
0e778ef0393bdd4fc10475b787965f1e

SHA1
7040a026c527fdb1bd6da37a3643a65ef479553d

SHA256
45ae79299d96c641d3bf7f1734205f5124b4edb2405ba75815be942ec526df8c

SHA512
700f6cab6337435749d57d7c1f84877317dd0ff637118db3918ce7f4d224904ed1ea6e56541fe5dcb17cb1a9976a958105ffc0f4891c509b07787ec103625552

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

Filesize
55KB

MD5
42bacbdf56184c2fa5fe6770857e2c2d

SHA1
521a63ee9ce2f615eda692c382b16fc1b1d57cac

SHA256
d1a57e19ddb9892e423248cc8ff0c4b1211d22e1ccad6111fcac218290f246f0

SHA512
0ab916dd15278e51bccfd2ccedd80d942b0bddb9544cec3f73120780d4f7234ff7456530e1465caf3846616821d1b385b6ae58a5dff9ffe4d622902c24fd4b71

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

Filesize
55KB

MD5
42bacbdf56184c2fa5fe6770857e2c2d

SHA1
521a63ee9ce2f615eda692c382b16fc1b1d57cac

SHA256
d1a57e19ddb9892e423248cc8ff0c4b1211d22e1ccad6111fcac218290f246f0

SHA512
0ab916dd15278e51bccfd2ccedd80d942b0bddb9544cec3f73120780d4f7234ff7456530e1465caf3846616821d1b385b6ae58a5dff9ffe4d622902c24fd4b71

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

Filesize
55KB

MD5
42bacbdf56184c2fa5fe6770857e2c2d

SHA1
521a63ee9ce2f615eda692c382b16fc1b1d57cac

SHA256
d1a57e19ddb9892e423248cc8ff0c4b1211d22e1ccad6111fcac218290f246f0

SHA512
0ab916dd15278e51bccfd2ccedd80d942b0bddb9544cec3f73120780d4f7234ff7456530e1465caf3846616821d1b385b6ae58a5dff9ffe4d622902c24fd4b71

Download Submit
\Windows\SysWOW64\rundll32Srv.exe

Filesize
55KB

MD5
42bacbdf56184c2fa5fe6770857e2c2d

SHA1
521a63ee9ce2f615eda692c382b16fc1b1d57cac

SHA256
d1a57e19ddb9892e423248cc8ff0c4b1211d22e1ccad6111fcac218290f246f0

SHA512
0ab916dd15278e51bccfd2ccedd80d942b0bddb9544cec3f73120780d4f7234ff7456530e1465caf3846616821d1b385b6ae58a5dff9ffe4d622902c24fd4b71

Download Submit
memory/900-65-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1488-68-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1628-60-0x0000000074BA0000-0x0000000074BB3000-memory.dmp

Filesize
76KB

Download
memory/1628-55-0x00000000760E1000-0x00000000760E3000-memory.dmp

Filesize
8KB

Download

Analysis

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