ramnit | 18dc15f41427c95f60223f932d4824bac7ace4e10d1bc80e5795073d9a6ff313

Analysis

max time kernel
150s
max time network
131s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
30-10-2022 23:18

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

18dc15f41427c95f60223f932d4824bac7ace4e10d1bc80e5795073d9a6ff313.dll
Size

232KB
MD5

a2318417e27e7217a2e9cbc74037d740
SHA1

f67755a65ea0048eee267cb40d6bf9ef667c257e
SHA256

18dc15f41427c95f60223f932d4824bac7ace4e10d1bc80e5795073d9a6ff313
SHA512

b29ecf4e4893e402f1d87a735923d86fe306f30e1b405bcff8fe9c1f4b3a5df5ad2f5b45948fde829559d4faf3574c7c1d6fb5d16dc20582614886ef0e95d82b
SSDEEP

3072:SCuuNCRs/Pj03pJEEC9ti9pocimFFVW6E1fZim4v5TRRJBYeBTg4vRPW9vc/Bm6+:SCIGPj038tAgFMldWNX+VBBRdCcvfr8d

Score

10^/10

ramnit banker persistence spyware stealer trojan upx worm

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,c:\\program files (x86)\\microsoft\\watermark.exe"	svchost.exe

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
268	rundll32mgr.exe
1476	WaterMark.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/268-66-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/1476-79-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/1476-203-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Loads dropped DLL 4 IoCs

pid	Process
1108	rundll32.exe
1108	rundll32.exe
268	rundll32mgr.exe
268	rundll32mgr.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32mgr.exe	rundll32.exe
File created	C:\Windows\SysWOW64\dmlconf.dat	svchost.exe
File opened for modification	C:\Windows\SysWOW64\dmlconf.dat	svchost.exe

Drops file in Program Files directory 10 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32mgr.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	svchost.exe
File opened for modification	C:\Program Files\7-Zip\7-zip.dll	svchost.exe
File opened for modification	C:\Program Files\7-Zip\7z.dll	svchost.exe
File opened for modification	C:\Program Files\7-Zip\7z.exe	svchost.exe
File opened for modification	C:\Program Files\7-Zip\7zFM.exe	svchost.exe
File opened for modification	C:\Program Files\7-Zip\7zG.exe	svchost.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px35FF.tmp	rundll32mgr.exe
File opened for modification	C:\Program Files\7-Zip\7-zip32.dll	svchost.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32mgr.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
796	1108	WerFault.exe	27

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
1476	WaterMark.exe
1476	WaterMark.exe
1476	WaterMark.exe
1476	WaterMark.exe
1476	WaterMark.exe
1476	WaterMark.exe
1476	WaterMark.exe
1476	WaterMark.exe
1580	svchost.exe
1580	svchost.exe
1580	svchost.exe
1580	svchost.exe
1580	svchost.exe
1580	svchost.exe
1580	svchost.exe
1580	svchost.exe
1580	svchost.exe
1580	svchost.exe
1580	svchost.exe
1580	svchost.exe
1580	svchost.exe
1580	svchost.exe
1580	svchost.exe
1580	svchost.exe
1580	svchost.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1476	WaterMark.exe
Token: SeDebugPrivilege	1580	svchost.exe
Token: SeDebugPrivilege	1108	rundll32.exe
Token: SeDebugPrivilege	1476	WaterMark.exe
Token: SeDebugPrivilege	796	WerFault.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 828 wrote to memory of 1108	828	rundll32.exe	27
PID 828 wrote to memory of 1108	828	rundll32.exe	27
PID 828 wrote to memory of 1108	828	rundll32.exe	27
PID 828 wrote to memory of 1108	828	rundll32.exe	27
PID 828 wrote to memory of 1108	828	rundll32.exe	27
PID 828 wrote to memory of 1108	828	rundll32.exe	27
PID 828 wrote to memory of 1108	828	rundll32.exe	27
PID 1108 wrote to memory of 268	1108	rundll32.exe	28
PID 1108 wrote to memory of 268	1108	rundll32.exe	28
PID 1108 wrote to memory of 268	1108	rundll32.exe	28
PID 1108 wrote to memory of 268	1108	rundll32.exe	28
PID 268 wrote to memory of 1476	268	rundll32mgr.exe	29
PID 268 wrote to memory of 1476	268	rundll32mgr.exe	29
PID 268 wrote to memory of 1476	268	rundll32mgr.exe	29
PID 268 wrote to memory of 1476	268	rundll32mgr.exe	29
PID 1108 wrote to memory of 796	1108	rundll32.exe	30
PID 1108 wrote to memory of 796	1108	rundll32.exe	30
PID 1108 wrote to memory of 796	1108	rundll32.exe	30
PID 1108 wrote to memory of 796	1108	rundll32.exe	30
PID 1476 wrote to memory of 1152	1476	WaterMark.exe	31
PID 1476 wrote to memory of 1152	1476	WaterMark.exe	31
PID 1476 wrote to memory of 1152	1476	WaterMark.exe	31
PID 1476 wrote to memory of 1152	1476	WaterMark.exe	31
PID 1476 wrote to memory of 1152	1476	WaterMark.exe	31
PID 1476 wrote to memory of 1152	1476	WaterMark.exe	31
PID 1476 wrote to memory of 1152	1476	WaterMark.exe	31
PID 1476 wrote to memory of 1152	1476	WaterMark.exe	31
PID 1476 wrote to memory of 1152	1476	WaterMark.exe	31
PID 1476 wrote to memory of 1152	1476	WaterMark.exe	31
PID 1476 wrote to memory of 1580	1476	WaterMark.exe	32
PID 1476 wrote to memory of 1580	1476	WaterMark.exe	32
PID 1476 wrote to memory of 1580	1476	WaterMark.exe	32
PID 1476 wrote to memory of 1580	1476	WaterMark.exe	32
PID 1476 wrote to memory of 1580	1476	WaterMark.exe	32
PID 1476 wrote to memory of 1580	1476	WaterMark.exe	32
PID 1476 wrote to memory of 1580	1476	WaterMark.exe	32
PID 1476 wrote to memory of 1580	1476	WaterMark.exe	32
PID 1476 wrote to memory of 1580	1476	WaterMark.exe	32
PID 1476 wrote to memory of 1580	1476	WaterMark.exe	32
PID 1580 wrote to memory of 260	1580	svchost.exe	26
PID 1580 wrote to memory of 260	1580	svchost.exe	26
PID 1580 wrote to memory of 260	1580	svchost.exe	26
PID 1580 wrote to memory of 260	1580	svchost.exe	26
PID 1580 wrote to memory of 260	1580	svchost.exe	26
PID 1580 wrote to memory of 336	1580	svchost.exe	25
PID 1580 wrote to memory of 336	1580	svchost.exe	25
PID 1580 wrote to memory of 336	1580	svchost.exe	25
PID 1580 wrote to memory of 336	1580	svchost.exe	25
PID 1580 wrote to memory of 336	1580	svchost.exe	25
PID 1580 wrote to memory of 372	1580	svchost.exe	24
PID 1580 wrote to memory of 372	1580	svchost.exe	24
PID 1580 wrote to memory of 372	1580	svchost.exe	24
PID 1580 wrote to memory of 372	1580	svchost.exe	24
PID 1580 wrote to memory of 372	1580	svchost.exe	24
PID 1580 wrote to memory of 380	1580	svchost.exe	23
PID 1580 wrote to memory of 380	1580	svchost.exe	23
PID 1580 wrote to memory of 380	1580	svchost.exe	23
PID 1580 wrote to memory of 380	1580	svchost.exe	23
PID 1580 wrote to memory of 380	1580	svchost.exe	23
PID 1580 wrote to memory of 412	1580	svchost.exe	22
PID 1580 wrote to memory of 412	1580	svchost.exe	22
PID 1580 wrote to memory of 412	1580	svchost.exe	22
PID 1580 wrote to memory of 412	1580	svchost.exe	22
PID 1580 wrote to memory of 412	1580	svchost.exe	22

\\?\C:\Windows\system32\wbem\WMIADAP.EXE
wmiadap.exe /F /T /R
1⤵
PID:2012

C:\Windows\system32\sppsvc.exe
C:\Windows\system32\sppsvc.exe
1⤵
PID:1736

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
1⤵
PID:744

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1400
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\18dc15f41427c95f60223f932d4824bac7ace4e10d1bc80e5795073d9a6ff313.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:828
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\18dc15f41427c95f60223f932d4824bac7ace4e10d1bc80e5795073d9a6ff313.dll,#1
    3⤵
    - Loads dropped DLL
    - Drops file in System32 directory
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1108
  - - C:\Windows\SysWOW64\rundll32mgr.exe
      C:\Windows\SysWOW64\rundll32mgr.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Drops file in Program Files directory
      Suspicious use of WriteProcessMemory
      PID:268
    - - C:\Program Files (x86)\Microsoft\WaterMark.exe
        
        "C:\Program Files (x86)\Microsoft\WaterMark.exe"
        5⤵
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:1476
      - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        6⤵
        Modifies WinLogon for persistence
        Drops file in System32 directory
        Drops file in Program Files directory
        
        PID:1152
      - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        6⤵
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:1580
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1108 -s 228
      4⤵
      Program crash
      Suspicious use of AdjustPrivilegeToken
      PID:796

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1328

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1228

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
1⤵
PID:484

C:\Windows\System32\spoolsv.exe
C:\Windows\System32\spoolsv.exe
1⤵
PID:1008

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkService
1⤵
PID:296

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs
1⤵
PID:872

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService
1⤵
PID:836

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
1⤵
PID:800

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
1⤵
PID:748

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k RPCSS
1⤵
PID:660

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k DcomLaunch
1⤵
PID:576

C:\Windows\system32\lsm.exe
C:\Windows\system32\lsm.exe
1⤵
PID:488

C:\Windows\system32\lsass.exe
C:\Windows\system32\lsass.exe
1⤵
PID:480

C:\Windows\system32\services.exe
C:\Windows\system32\services.exe
1⤵
PID:464

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:412

C:\Windows\system32\csrss.exe
%SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
1⤵
PID:380

C:\Windows\system32\wininit.exe
wininit.exe
1⤵
PID:372

C:\Windows\system32\csrss.exe
%SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
1⤵
PID:336

C:\Windows\System32\smss.exe
\SystemRoot\System32\smss.exe
1⤵
PID:260

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
65KB

MD5
849ef19ec0155d79d4fa5bfb5657b106

SHA1
eb7e7ff208ecb40d35755d8f36e31e2482166299

SHA256
8b853e963eab5aa857b640be1d07d605a8bf6dd8bdf8884505b05034bbd87e04

SHA512
30384d9943f7eca4efbdcac52d3dd9c14446a2d75dc04ce4047feabe037c5177138f6bdcb055939dcc47608dfb50a54c9676f795d850c9a9de353f90252053a2

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

Filesize
65KB

MD5
849ef19ec0155d79d4fa5bfb5657b106

SHA1
eb7e7ff208ecb40d35755d8f36e31e2482166299

SHA256
8b853e963eab5aa857b640be1d07d605a8bf6dd8bdf8884505b05034bbd87e04

SHA512
30384d9943f7eca4efbdcac52d3dd9c14446a2d75dc04ce4047feabe037c5177138f6bdcb055939dcc47608dfb50a54c9676f795d850c9a9de353f90252053a2

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

Filesize
65KB

MD5
849ef19ec0155d79d4fa5bfb5657b106

SHA1
eb7e7ff208ecb40d35755d8f36e31e2482166299

SHA256
8b853e963eab5aa857b640be1d07d605a8bf6dd8bdf8884505b05034bbd87e04

SHA512
30384d9943f7eca4efbdcac52d3dd9c14446a2d75dc04ce4047feabe037c5177138f6bdcb055939dcc47608dfb50a54c9676f795d850c9a9de353f90252053a2

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

Filesize
65KB

MD5
849ef19ec0155d79d4fa5bfb5657b106

SHA1
eb7e7ff208ecb40d35755d8f36e31e2482166299

SHA256
8b853e963eab5aa857b640be1d07d605a8bf6dd8bdf8884505b05034bbd87e04

SHA512
30384d9943f7eca4efbdcac52d3dd9c14446a2d75dc04ce4047feabe037c5177138f6bdcb055939dcc47608dfb50a54c9676f795d850c9a9de353f90252053a2

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

Filesize
65KB

MD5
849ef19ec0155d79d4fa5bfb5657b106

SHA1
eb7e7ff208ecb40d35755d8f36e31e2482166299

SHA256
8b853e963eab5aa857b640be1d07d605a8bf6dd8bdf8884505b05034bbd87e04

SHA512
30384d9943f7eca4efbdcac52d3dd9c14446a2d75dc04ce4047feabe037c5177138f6bdcb055939dcc47608dfb50a54c9676f795d850c9a9de353f90252053a2

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

Filesize
65KB

MD5
849ef19ec0155d79d4fa5bfb5657b106

SHA1
eb7e7ff208ecb40d35755d8f36e31e2482166299

SHA256
8b853e963eab5aa857b640be1d07d605a8bf6dd8bdf8884505b05034bbd87e04

SHA512
30384d9943f7eca4efbdcac52d3dd9c14446a2d75dc04ce4047feabe037c5177138f6bdcb055939dcc47608dfb50a54c9676f795d850c9a9de353f90252053a2

Download Submit
\Windows\SysWOW64\rundll32mgr.exe

Filesize
65KB

MD5
849ef19ec0155d79d4fa5bfb5657b106

SHA1
eb7e7ff208ecb40d35755d8f36e31e2482166299

SHA256
8b853e963eab5aa857b640be1d07d605a8bf6dd8bdf8884505b05034bbd87e04

SHA512
30384d9943f7eca4efbdcac52d3dd9c14446a2d75dc04ce4047feabe037c5177138f6bdcb055939dcc47608dfb50a54c9676f795d850c9a9de353f90252053a2

Download Submit
\Windows\SysWOW64\rundll32mgr.exe

Filesize
65KB

MD5
849ef19ec0155d79d4fa5bfb5657b106

SHA1
eb7e7ff208ecb40d35755d8f36e31e2482166299

SHA256
8b853e963eab5aa857b640be1d07d605a8bf6dd8bdf8884505b05034bbd87e04

SHA512
30384d9943f7eca4efbdcac52d3dd9c14446a2d75dc04ce4047feabe037c5177138f6bdcb055939dcc47608dfb50a54c9676f795d850c9a9de353f90252053a2

Download Submit
memory/268-68-0x0000000000220000-0x0000000000241000-memory.dmp

Filesize
132KB

Download
memory/268-66-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1108-55-0x0000000075AC1000-0x0000000075AC3000-memory.dmp

Filesize
8KB

Download
memory/1108-877-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/1108-78-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/1152-74-0x0000000020010000-0x0000000020022000-memory.dmp

Filesize
72KB

Download
memory/1152-70-0x0000000020010000-0x0000000020022000-memory.dmp

Filesize
72KB

Download
memory/1152-80-0x0000000020010000-0x0000000020022000-memory.dmp

Filesize
72KB

Download
memory/1152-204-0x0000000020010000-0x0000000020022000-memory.dmp

Filesize
72KB

Download
memory/1476-79-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1476-203-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1580-82-0x0000000020010000-0x000000002001B000-memory.dmp

Filesize
44KB

Download
memory/1580-85-0x0000000020010000-0x000000002001B000-memory.dmp

Filesize
44KB

Download