0f80bb8d09855e63b1c7ee2b16831885827c255e757d73106791d09ec3fd94f1

General

Target

5.exe
Size

1.8MB
MD5

8c9c35191068974382d0637e4ef4af43
SHA1

a00ac4856e32c4a836d6ca050ddaf745de8cee61
SHA256

0f80bb8d09855e63b1c7ee2b16831885827c255e757d73106791d09ec3fd94f1
SHA512

610502b61500c1ecbeb6539a1b60fd4009b777029233b0a80453ee93ce1b6b286f944a0dc1bbad1665eceb8a33ca6ea2a2e2ca54d0fb4c6745b71ef03fcdb50f
SSDEEP

49152:n2EYTb8atv1orq+pEiSDTj1VyvBa44yHdBvAnOx30KlhY33lSYHEz/N:2XbIrqabvAn043UYH

Score

10^/10

discovery execution

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

https://www.montereal.com.pe/INV3294331887.txt

Signatures

Executes dropped EXE 1 IoCs

Processes:

InformationCheck.exe

pid process

2732 InformationCheck.exe

pid	process
2732	InformationCheck.exe

Drops file in System32 directory 1 IoCs

Processes:

powershell.exe

description	ioc	process
File opened for modification	C:\Windows\System32\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Using powershell.exe command.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

2700 powershell.exe
System Location Discovery: System Language Discovery 1 TTPs 1 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

Processes:

InformationCheck.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language InformationCheck.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

powershell.exe

pid process

2700 powershell.exe
2700 powershell.exe
2700 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 2700 powershell.exe
Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

5.exe

pid process

3052 5.exe
3052 5.exe
3052 5.exe
Suspicious use of SendNotifyMessage 3 IoCs

Processes:

5.exe

pid process

3052 5.exe
3052 5.exe
3052 5.exe

pid	process
2700	powershell.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InformationCheck.exe

pid	process
2700	powershell.exe
2700	powershell.exe
2700	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2700	powershell.exe

pid	process
3052	5.exe
3052	5.exe
3052	5.exe

pid	process
3052	5.exe
3052	5.exe
3052	5.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

5.exepowershell.exe

description	pid	process	target process
PID 3052 wrote to memory of 2700	3052	5.exe	powershell.exe
PID 3052 wrote to memory of 2700	3052	5.exe	powershell.exe
PID 3052 wrote to memory of 2700	3052	5.exe	powershell.exe
PID 2700 wrote to memory of 2732	2700	powershell.exe	InformationCheck.exe
PID 2700 wrote to memory of 2732	2700	powershell.exe	InformationCheck.exe
PID 2700 wrote to memory of 2732	2700	powershell.exe	InformationCheck.exe
PID 2700 wrote to memory of 2732	2700	powershell.exe	InformationCheck.exe

C:\Users\Admin\AppData\Local\Temp\5.exe
"C:\Users\Admin\AppData\Local\Temp\5.exe"
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3052
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -ExecutionPolicy Bypass -File "C:\Users\Public\ProfileDetails.ps1"
  2⤵
  - Drops file in System32 directory
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2700
- - C:\Users\Public\InformationCheck.exe
    "C:\Users\Public\InformationCheck.exe" C:\Users\Public\Details.au3
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2732

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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\Public\Details.au3

Filesize
3B

MD5
ecaa88f7fa0bf610a5a26cf545dcd3aa

SHA1
57218c316b6921e2cd61027a2387edc31a2d9471

SHA256
f1945cd6c19e56b3c1c78943ef5ec18116907a4ca1efc40a57d48ab1db7adfc5

SHA512
37c783b80b1d458b89e712c2dfe2777050eff0aefc9f6d8beedee77807d9aeb2e27d14815cf4f0229b1d36c186bb5f2b5ef55e632b108cc41e9fb964c39b42a5

Download Submit
C:\Users\Public\InformationCheck.exe

Filesize
872KB

MD5
c56b5f0201a3b3de53e561fe76912bfd

SHA1
2a4062e10a5de813f5688221dbeb3f3ff33eb417

SHA256
237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d

SHA512
195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c

Download Submit
C:\Users\Public\ProfileDetails.ps1

Filesize
364B

MD5
0cc5e7e35db2204d53ad52913b645af0

SHA1
e294ed13495927b62330dcca1afe494eb4cfbcf8

SHA256
addf80e2d85e1146cd03112702ee0a2ed38ebb6283da4bddff3f748763b8459b

SHA512
6ef17a91aa209f43c09209abb55ddd6b8b81e445cf212cba97a1858652790f666e2140f987f3599a1c86f36df55c30d7fa1bfbc1cf402b0eacf2c8cc689a5e15

Download Submit
memory/2700-6-0x000007FEF47EE000-0x000007FEF47EF000-memory.dmp

Filesize
4KB

Download
memory/2700-7-0x000000001B690000-0x000000001B972000-memory.dmp

Filesize
2.9MB

Download
memory/2700-8-0x0000000002040000-0x0000000002048000-memory.dmp

Filesize
32KB

Download
memory/2700-12-0x000007FEF4530000-0x000007FEF4ECD000-memory.dmp

Filesize
9.6MB

Download
memory/2700-13-0x000007FEF4530000-0x000007FEF4ECD000-memory.dmp

Filesize
9.6MB

Download
memory/2700-15-0x000007FEF4530000-0x000007FEF4ECD000-memory.dmp

Filesize
9.6MB

Download

Analysis

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