a8cd5c47ee3a3eaec51c591ff3f906aea427c275872fa4a3df9d66d6c884068b

Analysis

max time kernel
16s
max time network
20s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
09-10-2024 02:07

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General

Target

liquidação de fatura de pagamento.exe
Size

2.3MB
MD5

383574fcb2a1b030666cb7c3be603445
SHA1

2fcf52b141d329798d4d9c6fc1c2b3326a8ccdc9
SHA256

b0a9e6a7deccda1f29e48f243f15e225f59e9fe11e7ce25f9433e3f8d233ad6c
SHA512

92f6bbb31d94f72e3fdf1396270563647f22f853828658ab9843616cb2d534ce2b3081df87bb2129bee267cfa83f8aaa7dfaf447a8d104a6c89ef049a4562e8a
SSDEEP

24576:XNw5wQb8vxzKM8LKbaxrNzlEUBFs6JYH2oDXPtJv55njhYzuyKpraS7FFX:XNQbNEaxrNzl5FYJLtpxwuyuF

Score

6^/10

discovery persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\Koerxmxvkh = "C:\\Users\\Admin\\AppData\\Roaming\\Koerxmxvkh.exe"	liquidação de fatura de pagamento.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5832	1736	WerFault.exe	29

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	liquidação de fatura de pagamento.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1736	liquidação de fatura de pagamento.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1736	liquidação de fatura de pagamento.exe
Token: SeDebugPrivilege	1736	liquidação de fatura de pagamento.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1736 wrote to memory of 5832	1736	liquidação de fatura de pagamento.exe	30
PID 1736 wrote to memory of 5832	1736	liquidação de fatura de pagamento.exe	30
PID 1736 wrote to memory of 5832	1736	liquidação de fatura de pagamento.exe	30
PID 1736 wrote to memory of 5832	1736	liquidação de fatura de pagamento.exe	30

C:\Users\Admin\AppData\Local\Temp\liquidação de fatura de pagamento.exe
"C:\Users\Admin\AppData\Local\Temp\liquidação de fatura de pagamento.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1736
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1736 -s 636
  2⤵
  - Program crash
  PID:5832

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1736-0-0x00000000742EE000-0x00000000742EF000-memory.dmp

Filesize
4KB

Download
memory/1736-1-0x0000000000F60000-0x00000000011AC000-memory.dmp

Filesize
2.3MB

Download
memory/1736-2-0x0000000004990000-0x0000000004A78000-memory.dmp

Filesize
928KB

Download
memory/1736-3-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-10-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-20-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-30-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-28-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-26-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-24-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-22-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-18-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-16-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-14-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-12-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-8-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-6-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-4-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-34-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-32-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-36-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-38-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-40-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-42-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-44-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-52-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-50-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-48-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-46-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-54-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-56-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-58-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-60-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-62-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-64-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-66-0x0000000004990000-0x0000000004A71000-memory.dmp

Filesize
900KB

Download
memory/1736-1077-0x0000000000C50000-0x0000000000CB2000-memory.dmp

Filesize
392KB

Download
memory/1736-1078-0x0000000000F00000-0x0000000000F4C000-memory.dmp

Filesize
304KB

Download
memory/1736-1079-0x00000000742E0000-0x00000000749CE000-memory.dmp

Filesize
6.9MB

Download
memory/1736-1080-0x00000000742E0000-0x00000000749CE000-memory.dmp

Filesize
6.9MB

Download
memory/1736-1081-0x0000000004D80000-0x0000000004DD4000-memory.dmp

Filesize
336KB

Download
memory/1736-1083-0x00000000742E0000-0x00000000749CE000-memory.dmp

Filesize
6.9MB

Download