e22f8bc9ff2568779a9282c4acc677bce79a563cffa24a3749bc3a236a579491

General

Target

caf5c3d52dbfec2c3b5030d75719c800N.exe
Size

924KB
MD5

caf5c3d52dbfec2c3b5030d75719c800
SHA1

2dbf7691fde034a6d24c81bad45bbe6c0fbf4453
SHA256

e22f8bc9ff2568779a9282c4acc677bce79a563cffa24a3749bc3a236a579491
SHA512

55a1955ce524e38cea6bfa3c5a0b09060e9a155eb19aaea79937b1561e0adea6d058fe7b232d0969f13f400140312eecb69545792663fb1c972077522be393a6
SSDEEP

12288:6aWzgMg7v3qnCiMErQohh0F4CCJ8lny/QLv4jm558UaXQPR:1aHMv6Corjqny/QLwjQ8tAPR

Score

7^/10

discovery persistence upx

Malware Config

Signatures

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1128-0-0x00000000000D0000-0x000000000018E000-memory.dmp	upx
behavioral2/memory/1128-2-0x00000000000D0000-0x000000000018E000-memory.dmp	upx
behavioral2/memory/1128-3-0x00000000000D0000-0x000000000018E000-memory.dmp	upx
behavioral2/memory/1128-4-0x00000000000D0000-0x000000000018E000-memory.dmp	upx
behavioral2/memory/1128-1-0x00000000000D0000-0x000000000018E000-memory.dmp	upx
behavioral2/memory/1128-7-0x00000000000D0000-0x000000000018E000-memory.dmp	upx

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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WkgcbcX = "C:\\Users\\Admin\\AppData\\Local\\Temp\\caf5c3d52dbfec2c3b5030d75719c800N.exe"	caf5c3d52dbfec2c3b5030d75719c800N.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/1128-8-0x0000000000400000-0x00000000004B5000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4216 set thread context of 1128	4216	caf5c3d52dbfec2c3b5030d75719c800N.exe	85

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Arquivos comuns\QrcyyfJ\	caf5c3d52dbfec2c3b5030d75719c800N.exe
File opened for modification	C:\Program Files (x86)\Arquivos comuns\QrcyyfJ\WkgcbcX.exe	caf5c3d52dbfec2c3b5030d75719c800N.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\media\DjuardJ\	caf5c3d52dbfec2c3b5030d75719c800N.exe
File opened for modification	C:\Windows\AtjnoqM\	caf5c3d52dbfec2c3b5030d75719c800N.exe
File opened for modification	C:\Windows\IpvejnX\	caf5c3d52dbfec2c3b5030d75719c800N.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 2 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	caf5c3d52dbfec2c3b5030d75719c800N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	caf5c3d52dbfec2c3b5030d75719c800N.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1128	caf5c3d52dbfec2c3b5030d75719c800N.exe
1128	caf5c3d52dbfec2c3b5030d75719c800N.exe
1128	caf5c3d52dbfec2c3b5030d75719c800N.exe
1128	caf5c3d52dbfec2c3b5030d75719c800N.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1128	caf5c3d52dbfec2c3b5030d75719c800N.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4216 wrote to memory of 1128	4216	caf5c3d52dbfec2c3b5030d75719c800N.exe	85
PID 4216 wrote to memory of 1128	4216	caf5c3d52dbfec2c3b5030d75719c800N.exe	85
PID 4216 wrote to memory of 1128	4216	caf5c3d52dbfec2c3b5030d75719c800N.exe	85
PID 4216 wrote to memory of 1128	4216	caf5c3d52dbfec2c3b5030d75719c800N.exe	85
PID 4216 wrote to memory of 1128	4216	caf5c3d52dbfec2c3b5030d75719c800N.exe	85

C:\Users\Admin\AppData\Local\Temp\caf5c3d52dbfec2c3b5030d75719c800N.exe
"C:\Users\Admin\AppData\Local\Temp\caf5c3d52dbfec2c3b5030d75719c800N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4216
- C:\Users\Admin\AppData\Local\Temp\caf5c3d52dbfec2c3b5030d75719c800N.exe
  "C:\Users\Admin\AppData\Local\Temp\caf5c3d52dbfec2c3b5030d75719c800N.exe"
  2⤵
  - Adds Run key to start application
  - Drops file in Program Files directory
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  PID:1128

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

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

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Downloads

memory/1128-0-0x00000000000D0000-0x000000000018E000-memory.dmp

Filesize
760KB

Download
memory/1128-2-0x00000000000D0000-0x000000000018E000-memory.dmp

Filesize
760KB

Download
memory/1128-3-0x00000000000D0000-0x000000000018E000-memory.dmp

Filesize
760KB

Download
memory/1128-4-0x00000000000D0000-0x000000000018E000-memory.dmp

Filesize
760KB

Download
memory/1128-1-0x00000000000D0000-0x000000000018E000-memory.dmp

Filesize
760KB

Download
memory/1128-5-0x0000000000CA0000-0x0000000000CA1000-memory.dmp

Filesize
4KB

Download
memory/1128-7-0x00000000000D0000-0x000000000018E000-memory.dmp

Filesize
760KB

Download
memory/1128-9-0x0000000000CA0000-0x0000000000CA1000-memory.dmp

Filesize
4KB

Download
memory/1128-8-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads